CASTinTACT® Precast Concrete Tactile Warning Panels

Transcription

Concrete Tactile Warning Panels
CASTinTACT 3
®
the dependable long-term concrete solution.
curb ramps | vehicular ways | transit platforms | blended transitions | pedestrian crossing
transportation | downtown revitalization | commercial | residential | public right of way
CASTinTACT® 3
Table of Contents
Table of Contents........................................................................................... 1
CASTinTACT® 3 Data Sheet............................................................................. 2-3
Panel Drawings............................................................................................... 4
INSTALaTACT® Tool.......................................................................................... 5
Finished Ramp Photos.................................................................................... 6
Installation Procedures.................................................................................. 7-12
Fresh Set Installation................................................................................7-8
Full Depth / Retrofit Block Out Installation............................................9-10
Thin Set Installation..................................................................................11-12
Ramp Drawings............................................................................................... 13-15
Maintenance.................................................................................................. 16-18
The Dependable Long-Term Concrete Solution!
For more information please visit
C AST in T AC T . c o m
-1 -
CASTinTACT® 3
A dependable long term solution meeting ADA Federal
Guidelines for detectable warning. Designed for exterior
use at the bottom of curb ramps and other locations
such as depressed corners, raised crosswalks, raised
intersections, borders of medians and islands, the edge of
transit platforms, and sidewalks where railroad tracks cross
as required under Section 504 of the Rehabilitation Act of
1973 and the American with Disabilities Act - 28 CFR Part
35 Title II and 28 CFR 36 Title III. Microsilica enhanced to increase compressive strength
and reduce permeability to chloride ion intrusion; resists
severe exposure to wet freeze thaw damage and de-icing
chemicals.
Three dimensional reinforced with fibrillating monofilament
fibers to increase flexural strength, ductility and
toughness.
Panels are architectural finished to enhance concrete
work. Full depth UV and weather proof integral colors
provides long term visual contrast. Textured concrete finish
for wet and dry slip resistance.
CASTinTACT ® 3 - High strength cementitious concrete
panels - enhanced with microsilica - 3 dimensionally
reinforced with structural fibrillating monofilament fibers.
CASTinTACT® 3 panels are uniquely installed in a patented
early entry-fast set method that takes 10 minutes. Panels
are recessed flush to surface and bond to concrete base
becoming a integral and permanent part of the walking
surface. Because they are concrete, they offer long term
durability, compatibility, similar coefficient of expansion as the
concrete base, and easy to clean, maintain and repair.
Cementitious concrete panels offer dimensional stability
and compatibility to concrete; similar co-efficient of
expansion as base. Superior strength, durability and abrasion
resistance achieved with an engineered mix design.
PROWAC Dome Specifications
Dome Base
0.9"-1.4" (23-36 mm)
Dome Top
50-65% of the base diameter
Dome Height
0.2" (5 mm)
Dome Spacing
1.6" min - 2.4" max
Base to Base Spacing
0.65" (17 mm) min
CASTinTACT® has been successfully used by
many states and cities in the United States.
Call for a list of projects in your area.
0.1875"
5"
S
DIU
0.2
0.60"
RA
0.20"
0.1875"
1.0"
Everything needed for
successful project!
0.9"
Wedge
anchor
locks into
concrete
Technical support available
with seminars, specifications,
and drawings.
ACCESS BOARD APPROVED
Contrasting color
is integral
throughout panels
Textured to provide
superior slip
resistance
- 2-
CASTinTACT® 3 Standard Colors
Custom colors available on request
Colors are approximate, samples available on request.
Black
Yellow
Salem Red
White
CASTinTACT® 3 Tactile Warning Panels comply with Americans with Disabilities Act 4.29.2 standards. CASTinTACT® 3 panels are
manufactured in the United States. The CASTinTACT® 3 Tactile Warning Panel also meet all Access Board PROWAC
requirements and physical properties listed below:
Test Results
CASTinTACT® 3 Technical Specifications
PROWAC Guidelines R304 Detectable Warning Surface
Guideline
Description
Requirement
CASTinTACT® 3
R304.1
Dome Alignment
Square Grid Pattern
Yes
R304.1.1
R304.1.2
R304.1.3
Base Dome Diameter
0.9″ min - 1.4″ max
1.0″
Top Dome Diameter
50% to 65% Base Diameter
0.60″
Dome Height
0.20″
0.20″
Dome Center to Center Spacing
1.6″ min - 2.4″ max
2.35″
Base to Base Spacing
0.65″ min
1.35″
Visual Contrast
Light on Dark or Dark on Light
Yes
Color Requirement
Integral Colored Material
Yes
R304.1.4
Size
24″ min direction of travel
Yes
R301.5
Surface
Firm, Stable and Slip Resistant
Yes
Panel Thickness 0.9”
Reinforcement - Macro Structural Fiber.
ASTM C 936-08 Standard Spec for Solid Concrete Interlocking Paving Units
Test Method
Test Description
Requirement
CASTinTACT® 3
ASTM C 140
Compressive Strength/Average
8,000 psi
10,000 psi
ASTM C 140
Water Absorption/Average
5% max
< 5.0%
ASTM C 1645
Freeze Thaw & De-Icing Salt Durability
max loss 200g/m2, 25 cycles, 3% saline
< 20g/m2, 25 cycles
ASTM C 418
Abrasion Resistance
15cm3/50cm2 max loss
< 1cm3/50cm2 loss
ASTM C 293
Flexural Strength
1,000 psi
1,100 psi
Freeze Thaw Durability
1% max loss, 100 cycles, 3% ChCl
< 1% loss
Other Test Results
ASTM C 1262
ASTM C 672
Scaling Resistance
Visual Inspection Rating
0-1, Passing
ASTM C 666
Rapid Freezing and Thawing
1% max loss, 300 cycles
100%, No Loss
ASTM C 779
Abrasion Resistance / Prod. A
Loss in inches @ 30min/60min
-0.006/30min, -0.015/60min
ASTM C 482
Adhesion/Bond Strength
No Adhesion Failure
Passing
ASTM C 1028
Wet/Dry Slip Resistance (Mod)
0.80 min wet/dry
Passing
ASTM C 348
Flexural Strength
-
2,000 psi
CRD-C 39
Coefficient of Linear Thermal Expansion of Concrete
Concrete = 8.0 x 10-6
8.1 x 10-6 at 95% RH
CASTinTACT® 3 IS OFFERED WITH A FIVE YEAR LIMITED WARRANTY AND WILL CERTIFY PANELS TO MEET
OR EXCEED INTERNAL STANDARDS AS WELL AS PREVIOUSLY STATED ASTM PERFORMANCE STANDARDS. -3 -
PART# MA CT22
PART# MA CT2.52
24"
24"
1.425"
1.425"
1.425"
9 SPC'S @ 2.35" = 21.15"
1.175"
12 SPC'S @ 2.35" = 28.20"
FINE SANDBLAST
TEXTURE
1.175"
FINE SANDBLAST
TEXTURE
23.5"
9 SPC'S @ 2.35" = 21.15"
1.175"
9 SPC'S @ 2.35" = 21.15"
24.375"
0.1875"
For more information please visit:
0.2
5"
DIU
S
2.5′ x 2′ PANEL
PART # MA CT2.52
0.9"
36"
CASTinTACT.com
All dimensions
in inches
1.550"
0.60"
RA
0.20"
MASCO CASTinTACT® 3 | CAST IN PLACE DETECTABLE WARNING PANEL 3' x 2'
PART# MA CT32
1.0"
0.1875"
0.9"
RA
0.2
5"
DIU
S
0.60"
0.20"
2′ x 2′ PANEL
PART # MA CT22
0.9"
0.1875"
1.0"
1.175"
24.375"
RA
0.1875"
0.2
5"
DIU
S
0.20"
1.0"
0.60"
1.550"
14 SPC'S @ 2.35" = 32.90"
1.175"
FINE SANDBLAST
TEXTURE
CAST inT ACT .com
23.5"
9 SPC'S @ 2.35" = 21.15"
All dimensions in inches
CASTinTACT® 3
Panel Drawings
1.175"
CASTinTACT® 3 Panel Dimensions (Top Face)
36.375"
2.35" Dome Spacing
Actual Sizes
2' x 2' Panel
23.5″ width x 24″ depth
2.5' x 2' Panel
3' x 2' Panel
Dimension Tolerances:
+/- 1/8" (width, length, height)
0.1875"
5"
0.2
0.20"
Download the full-size panel drawings
online at www.CASTinTACT.com
3′ x 2′ PANEL
PART # MA CT32
0.9"
0.1875"
1.0"
0.60"
- -4 4 For more information please visit:
All dimensions in inches
30.55"
1.425"
Installation Tools
Needed:
Supplies Needed:
CASTinTACT® 3 Panels
INSTALaTACT®
MA CT2 (2'X4' TOOL)
MA CT3 (3'X4' TOOL)
CASTinTACT® PreMix
or Portland Cement
Level
Masons Sand
Square Point Shovel
Potable Water
CASTinTACT® 3 - Installed Cross Section
MASCO CASTinTACT 3® DETECTABLE WARNING PANEL
Wood Float
Rubber Mallet
Sprayer for Water
Buckets
600 (24")
200 (8")
150 (6")
1/8" Radius Edger
50
(2")
WEDGE ANCHOR DESIGN
1/8" RADIUS
Hydra Sponge
Stainless Steel
Wire Brush
THICKEN SLAB UNDER TACTILE PANEL
225 (9")
Place CASTinTACT® 3 at the bottom
of curb ramps and other blended
transitions. Install across the full width
of ramp a minimum 24" in depth and
set back 8" from curb line.
300 (12")
INSTALaTACT® Installation Tool
INSTALaTACT® Template
US Patent No. 7,000,361 & 7,121,048.
INSTALaTACT® Tool Sizes
-MA CT2 (2′x4′ Tool)
-MA CT3 (3′x4′ Tool)
CASTinTACT® 3 PANELS ARE EARLY ENTRY-FRESH SET WITH INSTALaTACT® TOOL.
Recess concrete with INSTALaTACT® Installation Tool, insert CASTinTACT® 3 panels
and finish level with concrete surface.
• Fast installation method for fresh concrete; typically fresh set curb ramps take 10 minutes.
• CT2 tool can be used on 2′x4′, 2′x5′, 2′x6′ or wider ramps.
• CT3 tool can be used on 3′x4′, 3′x6′ and 3′x8′ ramps.
• Bottom shovel guides make sure proper setting depth is achieved.
• Powder coated finish on INSTALaTACT® tool for easy clean up.
-5 -
®
CASTinTACT 3 Finished Ramps
-6 -
CASTinTACT®
Concrete Tactile
Warning Panels
Early Entry - Fresh Set Install
3.3 CAST IN PLACE INSTALLATION PROCEDURES
A. Temperature affects the setting time and rate of strength of
concrete, standard ACI procedures for storing, mixing, and placing
concrete in hot or cold weather are recommended. See ACI 305
“Standards on Hot Weather Concreting," or ACI 306 “Standard on
Cold Weather Concreting.”
truncated dome should be flush with adjacent surfaces to permit
proper drainage and eliminate tripping hazard between surfaces.
Tolerance between tactile panels and surrounding surfaces is
1/16” maximum. Immediately after placement re-check slope
and elevation for proper grade.
B. Provide expansion and control joint width indicated in drawings.
All joint materials used follow manufacturer’s directions and
instructions.
ALTERNATE (EXTREME CLIMATES) Leave a 3/16” gap between
square cut panels joints and seal with a compatible elastomeric
sealant conforming to ASTM C920. Follow sealant’s manufacturer’s
recommendations for joint preparation and installation procedures.
Protect from traffic until sealant cured.
1. Expansion joints must be carried through all layers of installation
materials including warning panels, concrete substrate and steel
reinforcing. Joints should be spaced typically 8’ to 12’ in both
directions. All perimeter edges of ramps or blended transitions
should have expansion joints. (Refer to ACI 360R guidelines for
details on placement, size and specifications of material)
C. Position forms for proper grade, slopes and uniform slab thickness.
Consult contract documents for details on reinforcement and joint
placement to prevent random cracking.
D. The concrete specified shall conform to contract documents
with a maximum slump of 4”. Concrete shall be poured and
finished to the proper grade and slope prior to warning panel
placement. Concrete thickness shall be increased 1” in depth
beneath area receiving warning panels.
E. Consult contract documents for more information on locations
to receive detectable warning panels.
1. Monolithic poured curb and sidewalk - place panels 6” to 8”
from curb line.
2. Existing curbs - place panels 8” from curb line to allow 2” of new
concrete in front of panels.
3. Install across the full width of ramp or blended transition a
minimum 24” in depth.
F. Recessed panels below finish grade with INSTALaTACT®
installation template tool before initial concrete set and level base
with wood float to leave an open surface.
G. Pre-dampen back of CASTinTACT® 3 panels with potable water.
Apply 1/8” thickness of CASTinTACT® Wet Set PreMix (3:1 ratio of
powder to potable water) or (1:1:½ ratio of Portland cement, clean
masons sand and potable water). Work into textured surface
on back of panel with rubber float for 100% surface coverage.
Alternatively a scrub coat of fresh concrete removed from the
INSTALaTACT® tool can be used as a parge coat.
H. Install Tactile Panels immediately in fresh concrete and lightly
tap panels to grade using a rubber mallet to insure bond and 100%
surface contact. Wedge or flared edge of panel facing the
curb and square edges of panel joints butted together. Base of
I. Finish surrounding concrete flush with tactile panels. Edge
around panels with 1/8” radius edger, install control joints and
finish in accordance with project specifications.
J. Finish joints per specifications. Follow all manufacturer’s
recommendations for joint preparation and installation
procedures.
K. Clean fresh dried concrete residue off panels with a stainless
steel wire brush and rinse with clean water and hydra sponge to
ensure a clean appearance.
L. Fresh concrete surrounding tactile panels should be cured in
accordance with ACI 308. Use a curing compound meeting ASTM
C 309. PROTECT PANELS WITH PROTECTaTACT OR SIMILAR WHILE
SPRAYING CURING COMPOUND.
3.4 CLEANING
A. Remove all unused material, tools, and equipment. Dispose
of properly.
B. If the detectable / tactile surface requires, clean the panels in
accordance with CASTinTACT® Cleaning and Maintenance Guide.
3.5 PROTECTION
Protect the CASTinTACT® 3 Warning Panel surface from traffic
until desired strength is achieved. If necessary, protect panels
with plywood and a underlayment layer of non-staining, nonwoven curing blanket until acceptance of work. Secure plywood
if needed.
3.6 STORAGE
Store products under cover in manufacturer’s unopened
packaging until ready for installation. Store pallets on supported
flat surface. DO NOT DOUBLE STACK PALLETS.
Download the full specifications online at
www.CASTinTACT.com
CAST in T AC T . c o m
-7 -
© COPYRIGHT MASONS SUPPLY COMPANY 2010
JAN 2010
Early Entry - Fresh Set Install
1
US Patent No 7,000,361 & 7,121,048
and other patents pending
2
Pour concrete and finish to proper grade.
Set INSTALaTACT® into fresh concrete 6-8" from curb line.
3
Removal of concrete is fast & easy with a square point shovel.
4
Pre-dampen and parge the back of the panel with
CASTinTACT® Premix or fresh concrete.
Remove the INSTALaTACT® tool and level
concrete base with wood float.
6
5
Finish surrounding concrete flush with panel.
Install joints and finish to specifications.
Set CASTinTACT® with rubber mallet. Wedge or flared edge of
panel facing the curb. Check slope with level.
7
8
Clean up is fast and easy with stainless steel brush
and hydra sponge.
CASTinTACT® - THE DEPENDABLE CONCRETE SOLUTION!
C AST in T AC
-8 T-. c o m
JAN 2010
CASTinTACT®
Concrete Tactile
Warning Panels
Full Depth Retro Fit / Block Out
3.3 CAST IN PLACE INSTALLATION PROCEDURES
A. Temperature affects the setting time and rate of strength of
concrete, standard ACI procedures for storing, mixing, and placing
concrete in hot or cold weather are recommended. See ACI 305
“Standards on Hot Weather Concreting," or ACI 306 “Standard on
Cold Weather Concreting.”
B. Saw cut existing concrete full depth using a diamond blade.
Oversize area a minimum 2” in each direction of warning panel
layout. Contain slurry and dispose of properly. Partial depth and
breakout will not be allowed. Do not chip the concrete on perimeter
of cut out. The perimeter chips and over cuts must be filled and patched
with an gray epoxy gel adhesive approve by manufacturer.
C. Provide expansion and control joints indicated in drawings. All
joint materials used follow manufacturer’s directions and instructions.
1. Expansion joints must be carried through all layers of installation
materials including warning panels, concrete substrate and steel
reinforcing. Joints should be spaced typically 8’ to 12’ in both
directions. All perimeter edges of ramps or blended transitions
should have expansion joints. (Refer to ACI 360R guidelines for
details on placement, size and specifications of material)
Alternatively a scrub coat of fresh concrete removed from the
INSTALaTACT® tool can be used as a parge coat.
J. Install Tactile Panels immediately in fresh concrete and lightly
tap panels to grade using a rubber mallet to insure bond and
100% surface contact. Wedge or flared edge of panel facing the
curb and square edges of panel joints butted together. Base of
truncated dome should be flush with adjacent surfaces to permit
proper drainage and eliminate tripping hazard between surfaces.
Tolerance between tactile panels and surrounding surfaces is
1/16” maximum. Immediately after placement re-check slope
and elevation for proper grade.
ALTERNATE (EXTREME CLIMATES) Leave a 3/16” gap between
square cut panels joints and seal with an compatible elastomeric
sealant conforming to ASTM C920. Follow sealant’s manufacturer’s
Protect from traffic until sealant cured.
K. Finish surrounding concrete flush with tactile panels. Edge
around panels with 1/8” radius edger, install control joints and finish
in accordance with project specifications.
L. Finish joints per specifications. Follow all manufacturer’s
D. Dowel into existing concrete as necessary.
E. The concrete specified shall conform to contract documents
with a maximum slump of 4”. Concrete shall be poured and finished
to the proper grade and slope prior to warning panel placement.
Concrete thickness shall be increased 1” in depth beneath area
receiving warning panels. Prepare a well drained and properly
compacted subgrade. Leave no puddles, standing water, ice,
frost or mud. Consult contract documents for information on
subgrade and compaction details.
F. Consult contract documents for more information on locations
to receive detectable warning panels.
1. Monolithic poured curb and sidewalk - place panels 6” to 8”
from curb line.
2. Existing curbs - place panels 8” from curb line to allow 2” of new
concrete in front of panels.
M. Clean fresh concrete residue off panels with a stainless steel
wire brush and rinse with clean water and hydra sponge to ensure
a clean appearance.
N. Fresh concrete surrounding tactile panels should be cured in
accordance with ACI 308. Use a curing compound meeting ASTM
C 309. PROTECT PANELS WITH PROTECTaTACT OR SIMILAR WHILE
SPRAYING CURING COMPOUND.
3.4 CLEANING
A. Remove all unused material, tools, and equipment. Dispose of properly.
3.5 PROTECTION
3. Install across the full width of ramp a minimum 24” in depth.
G. Concrete shall be poured, floated and recessed ⅞” below
finish grade to proper grade and slope.
H. Concrete shall be finished with wood float to leave an open
surface.
I. Pre-dampen back of CASTinTACT® 3 panels with potable water
Apply 1/8” thickness of CASTinTACT® Wet Set PreMix (3:1 ratio of
powder to potable water) or (1:1:½ ratio of Portland cement, clean
masons sand and potable water). Work into textured surface
on back of panel with rubber float for 100% surface coverage.
Protect the CASTinTACT® 3 Warning Panel surface from traffic until
desired strength is achieved. If necessary, protect panels with plywood
and an underlayment layer of non-staining, non-woven curing
blanket until acceptance of work. Secure plywood if needed.
3.6 STORAGE
www.CASTinTACT.com
CAST in T AC T . c o m
-9 -
JAN 2010
Full Depth Retrofit Install
US Patent No 7,000,361 & 7,121,048
And Other Patents Pending.
1
2
Predetermine measurements prior to cutting,
oversize all sides minimum 2" each direction.
3
Prepare a well drained and properly compacted subgrade.
Dowel into existing concrete as necessary. Oversize area
minimum 2" in each direction.
4
Pre-dampen and parge back of panel with
CASTinTACT® Wet Set PreMix or fresh concrete.
Concrete shall be poured, leveled, floated and recessed
7/8" below finish grade.
5
6
Place CASTinTACT® into fresh concrete 6-8" from curb line
and set panels with a rubber mallet. Wedge or flared edge of
panel facing the curb. 2" minimum new concrete all sides.
Fill perimeter with concrete, level with base of domes, edge
panels, and finish to specifications.
7
8
Clean up is fast and easy with stainless steel
brush and hydra sponge.
C AST in T-10 AC-T . c o m
JAN 2010
CASTinTACT®
Concrete Tactile
Warning Panels
Thin Set Install
3.3 THIN SET INSTALLATION PROCEDURES
A. Install Detectable Warning Panels in accordance with TCA
Handbook for Tile Installation and ANSI A108.5 Specifications.
of acrylic admix and potable water; add integral color pigment to
match CASTinTACT® panels.
B. All expansion and control joints must be carried through all layers
of installation materials including warning panels, setting bed,
mortar bed, concrete substrate and steel reinforcing. Joints should
be spaced typically 8’ to 12’ in both directions. All perimeter edges
of ramps or blended transitions should have expansion joints. (Refer
to TCA Handbook current issue of EJ-171 for details on placement,
size and specifications of materials)
L. Apply colored grout into (SSD) panel joints, forcing grout filling
entire panel joint. (A mortar squeeze bag works well for dispensing
the mortar and tuck pointing tool works well for compacting mortar
in the joint opening.)
C. Install Detectable Warning Panels with a polymer modified
medium bed thin set material complying with ANSI A118.4 in
accordance with manufacturer’s installation instructions utilizing a
½”x½”x½” square notched trowel.
D. Using flat side of trowel, apply a skim coat of mortar. Apply
additional mortar with notched side of trowel held at 45º angle to
the surfaces, combing in one direction. Do not spread more thin set
than can be set within working life. If material is past working life,
remove and replace with fresh material.
E. Pre-dampen back of tactile panels saturated surface dry (SSD)
with clean water and parge back of panel with medium bed thinset simultaneously while the mortar is being applied to the substrate.
Adjust panels promptly and lightly tap panels to proper grade with
rubber mallet to insure 100% surface contact with substrate. Wedge
or flared edge of panel facing the curb.
F. Base of truncated dome shall be flush with adjacent surfaces to
permit proper drainage and eliminate tripping hazard between
surfaces. Tolerances between tactile panels and surrounding
surfaces is 1/16” maximum. Immediately after placement re-check
slope and elevation for proper grade.
G. Traffic should be kept off the detectable warning panels
according to thin set manufacturer’s recommendations.
H. Provide joint widths indicated in drawings.
I. Panel Joints should be allowed to cure for minimum 24 hours
before grouting or light traffic, depending upon temperature and
humidity. Blow out all dust and debris in open panel joints.
J. Before grouting mist all sides of panel joints with cool clean water.
Keep panel joints in a saturated dry condition (SSD) before grouting.
Remove ponding water from bottom of joint opening before
grouting. Maximum surface temperature for open panel joints to be
grouted is 90o F.
K. Mix colored grout at a 1:2 ratio of gray or white portland cement
(depending on panel color) and 30 mesh white sand with 1:1 ratio
M. Immediately clean excess mortar smears off panels and adjacent
surfaces with a damp sponge to ensure a clean appearance.
Change rinse water often to keep surfaces clean. Usually 2 or more
clean sponge rinses are required.
N. After initial set of colored grout, finish joints with brick jointer to
produce a slightly concave polished joint, free from cracks.
O. Proper curing of grout entails periodically misting the installation
with clean, cool water for a period of 72 hours. Alternatively apply
a cure coat to grout joints with a 1:1 ratio of acrylic admix mixed
with potable water. Use a paint brush to apply a thin mil cure coat
keeping off face of warning panels. Do not over apply cure coat; it
will not dry clear.
P. Expansion Joint sealing should be performed a minimum 7
days after grouting of panel joints. Compatible expansion joint
sealant must conform to ASTM C920, color to match panels. Tool
joints to produce a slightly concave polished joint. Follow sealant
manufacturer's recommendation for joint preparation and
installation procedures.
3.4 CLEANING
A. Remove all unused material, tools, and equipment. Dispose of
properly.
3.5 PROTECTION
Protect the CASTinTACT® 3 Warning Panel surface from traffic until
desired strength is achieved. If necessary, protect panels with
plywood and an underlayment layer of non-staining, non-woven
curing blanket until acceptance of work. Secure plywood if
needed.
3.6 STORAGE
www.CASTinTACT.com
-11-
JAN 2010
1
2
Finish substrate 1-3/8" below finish grade.
Measure tactile area for precutting of panels.
3
4
Panels can be radius cut around vault boxes.
Panels can be easily cut with diamond blade.
5
6
Install tactile panels with polymer modified
medium bed thin set material. Wedge or flared edge
of panel facing the curb.
7
Pre-Mix grout and color pigment
to match CASTinTACT® panels.
8
Expansion and panel joints must be installed and
in compliance with TCA EJ171.
C AST in-12 T AC- T . c o m
JAN 2010
")
(48
")
24
0(
61
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L)
L
RO
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CO JOIN
ND
IN
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3%
S
RM LOPE
AL
NO
8.3
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OP
SL
USE IN ALTERATIONS ONLY AND WHEN SIDE
CONSTRAITS PROHIBIT INSTALLING TWO RAMPS
THE SELECTION AND USE OF THIS DRAWING
WHILE DESIGNATED IN ACCORDANCE WITH
GENERALLY ACCEPTABLE ENGINEERING
PRINCIPLES AND PRACTICES, IS THE SOLE
RESPONSIBILITY OF THE USER AND SHOULD
NOT BE USED WITHOUT CONSULTING A
REGISTERED PROFESSIONAL ENGINEER.
NEW CONSTRUCTION 1220mm (48") MINIMUM
ALTERATIONS 915mm (36") MINIMUM
EXPANSION OR CONTROL JOINT (SEE NOTES)
FLARE SLOPES 10% FOR LANDINGS
1220mm (48") OR WIDER AND
8.33% FOR LANDINGS BETWEEN
915mm (36") AND 1220mm (48")
JOINTS ARE REQUIRED AT ALL SIDEWALK RAMP SLOPE BREAKS. EXPANSION JOINTS ARE RECOMMENDED BETWEEN EXISTING
CONCRETE AND NEW WHERE APPLICABLE. (REFER TO ACI 360R)
FOR THE PURPOSES OF THIS DRAWING, A CURB RAMP IS CONSIDERED "PERPENDICULAR" IF THE ANGLE BETWEEN THE
LONGITUDINAL AXIS OF THE RAMP AND A TANGENT TO THE CURB AT THE RAMP CENTER IS 75 DEGREES OR GREATER.
SIDE FLARES THAT ARE NOT PART OF THE PATH OF TRAVEL MAY BE ANY SLOPE.
SIDEWALK CURB RAMP SLOPES SHOWN ARE RELATIVE TO THE TRUE LEVEL HORIZON (ZERO BUBBLE).
Download more ramp drawings online at
IN ALTERATIONS CURB RAMP SLOPE(S) MAY BE 10% FOR A MAXIMUM RISE OF 150mm (6") OR 12.5%
FOR: MAXIMUM RISE OF 75mm (3"). CURB RAMPS,www.CASTinTACT.com
INALTERATIONS, NEED NOT EXCEED 1.8m (6"-0") IN LENGTH.
PLACE TRUNCATED DOME DETECTABLE WARNING PANELS AT THE BASE OF CURB RAMP. INSTALL ACROSS FULL WIDTH OF
RAMP A MINIMUM 610 mm (24") IN DEPTH AND SET BACK 200mm (8") FROM BOTTOM OF CURB.
RAL NOTES
1
0
22
1220mm (48") SINGLE DIAGONAL RAMP
8")
0(
20
H 2' x 2' PANELS
MASCO CASTinTACT® DETECTABLE WARNING
®
O CASTinTACT
DETECTABLE
WARNING
2 EACH
2' x 2' PANELS
-13 -
9. IN EXTREME CLIMATES LEAVE 3/16" GAP BETWEEN SQUARE CUT PANEL JOINTS AND SEAL WITH COMPATIBLE ELASTOMERIC SEALANT.
8. THICKEN CONCRETE UNDER DETECTABLE WARNING PANEL.
7. SIDEWALK FLARE IS NOT NECESSARY WHERE THE RAMP IS PROTECTED FROM PEDESTRIAN CROSS-TRAVEL.
6. JOINTS ARE REQUIRED AT ALL SIDEWALK RAMP SLOPE BREAKS. EXPANSION JOINTS ARE RECOMMENDED BETWEEN EXISTING CONCRETE AND NEW WHERE APPLICABLE. (REFER TO ACI 360R)
5. FOR THE PURPOSES OF THIS DRAWING, A CURB RAMP IS CONSIDERED "PERPENDICULAR" IF THE ANGLE BETWEEN THE LONGITUDINAL AXIS OF THE RAMP AND A TANGENT TO THE CURB AT THE RAMP CENTER IS 75 DEGREES OR GREATER.
4. SIDE FLARES THAT ARE NOT PART OF THE PATH OF TRAVEL MAY BE ANY SLOPE.
3. IN ALTERATIONS CURB RAMP SLOPE(S) MAY BE 10% FOR A MAXIMUM RISE OF 150mm (6") OR 12.5%
FOR: MAXIMUM RISE OF 75mm (3"). CURB RAMPS, IN ALTERATIONS, NEED NOT EXCEED 1.8m (6"-0") IN LENGTH.
2. SIDEWALK CURB RAMP SLOPES SHOWN ARE RELATIVE TO THE TRUE LEVEL HORIZON (ZERO BUBBLE).
1. PLACE TRUNCATED DOME DETECTABLE WARNING PANELS AT THE BASE OF CURB RAMP. INSTALL ACROSS FULL WIDTH OF RAMP A MINIMUM 610 mm (24") IN DEPTH AND SET BACK 200mm (8") FROM BOTTOM OF CURB.
GENERAL NOTES
Single Diagonal Ramp
225 (9")
GUTTER
Ø LIP
TYP.
5% MAX.
SLOPE
300 (12")
SLOPE
1/2” E.J.
E.J.
SECTION A-A
A
2985 (117.5")
P.J.
A
A
2985 (117.5")
P.J.
1/2” E.J.
A
MONOLITHIC CURB & SIDEWALK
SECTION A-A
THICKEN SLAB UNDER
TACTILE PANEL
300 (12")
THICKEN SLAB UNDER
TACTILE PANEL
SECTION A-A
SECTION A-A
1/2” E.J.
E.J.
E.J.
E.J.
www.CASTinTACT.com
1220mm (48") OR WIDER
1/2” E.J.
225 (9")
GUTTER
Ø LIP
TYP.
5% MAX.
5% SLOPE
Ø LIP
MAX
GUTTER
Ø LIP
2% SLOPE
FLARE SLOPES 10% 1220mm
FOR LANDINGS
(48") OR WIDER
2% SLOPE
24" BLENDEDGUTTER
TRANSITION - FRESH SET INSTALLATION
5% SLOPE
2985 (117.5")
P.J.
E.J.
E.J.
MAX
1/2” E.J.
P.J. = PANEL JOINT
SLOPE
SLOPE
REGISTERED PROFESSIONAL ENGINEER
1/2”RESPONSIBILITY
E.J.
OF THE USER AND SHOULD
WHILE DESIGNED
IN THIS
ACCORDANCE
THE SELECTION
AND USE OF
DRAWING WITH
WHILE
DESIGNED
IN ACCORDANCE WITH
THE SELECTION AND USE
OF
THIS DRAWING
GENERALLY
ACCEPTABLE ENGINEERING
WHILE DESIGNED IN ACCORDANCE
WITH
PRINCIPLES
AND
PRACTICES,
IS THE SOLE
PRINCIPLES
AND PRACTICES,
IS THE SOLE
RESPONSIBILITY
OF THE USER AND SHOULD
GENERALLY ACCEPTABLE
ENGINEERING
RESPONSIBILITY
OF THE USER
NOT BE
USED WITHOUT CONSULTING
A AND SHOULD
PRINCIPLES AND PRACTICES,
IS THE
SOLE
REGISTERED
PROFESSIONAL
ENGINEER.
E.J. = EXPANSION JOINT
7. IN EXTREME
CLIMATES
LEAVE 3/16”
GAP BETWEEN
SQUARE
CUT A
PANEL
JOINTS AND SQUARE
CUT PANEL
JOINTS
AND SEAL
WITH
COMPATIBLE
E.J. = EXPANSION
JOINT
P.J. = PANEL
SEAL
WITH A COMPATIBLE
ELASTOMERIC
SEALANT.
ELASTOMERIC
SEALANT.
7. IN EXTREME CLIMATES LEAVE 3/16” GAP BETWEEN
JOINT
IS
PROTECTED FROM PEDESTRIAN CROSS-TRAVEL.
7. NECESSARY
IN EXTREME
CLIMATES
3/16”
5. SIDEWALK FLARE IS NOT
WHERE
THE RAMP IS LEAVE
PROTECTED
FROM GAP BETWEEN
PEDESTRIAN CROSS-TRAVEL.
SQUARE CUT PANEL JOINTS AND SEAL WITH A COMPATIBLE
ELASTOMERIC SEALANT.
4.5.EXPANSION
JOINTS
ARE REQUIRED
ALL SIDEWALK WHERE
RAMP SLOPE
BREAKS.
SIDEWALK
FLARE
IS NOT AT
NECESSARY
THE
RAMP
2985 (117.5")
P.J.
GENERAL NOTES
1. PLACE TRUNCATED DOME DETECTABLE WARNING PANELS
AT THE BASE OF CURB RAMP. INSTALL ACROSS FULL
WIDTH OF RAMP A MINIMUM 610 mm (24") IN DEPTH AND
GENERAL NOTES
SET BACK 200mm (8") FROM BOTTOM OF CURB.
1. PLACE TRUNCATED DOME DETECTABLE WARNING PANELS
2.CURB
SIDEWALK
RAMP
SLOPES
SHOWN ARE RELATIVE TO
AT THE BASE OF
RAMP.CURB
INSTALL
ACROSS
FULL
THE
TRUE LEVEL
HORIZON
(ZERO
BUBBLE).
WIDTH OF RAMP A
MINIMUM
610 mm
(24") IN
DEPTH
AND
SET BACK 200mm (8") FROM BOTTOM OF CURB.
3. SIDE FLARES THAT ARE NOT PART OF THE PATH OF TRAVEL
GENERAL
NOTESCURB RAMP SLOPES SHOWN ARE RELATIVE TO
2. SIDEWALK
MAY BE ANY SLOPE.
THE
TRUE
LEVEL
HORIZON
(ZERO
BUBBLE).
1. PLACE TRUNCATED
DOME
DETECTABLE
WARNING
PANELS AT THE BASE OF CURB RAMP. INSTALL ACROSS
WIDTH OF RAMP
A MINIMUM
mm (24") INAT
DEPTH
SIDEWALK RAMP
4. FULL
EXPANSION
JOINTS
ARE 610
REQUIRED
ALL
3.AND
SETFLARES
BACK 200mm
(8")
FROMNOT
BOTTOM
OF CURB.
SIDE
THAT
ARE
PART
OF THE PATH OF TRAVEL
SLOPE
BREAKS.
MAY BE ANY SLOPE.
2. SIDEWALK CURB RAMP SLOPES SHOWN ARE RELATIVE TO THE TRUE LEVEL HORIZON
5. SIDEWALK FLARE IS NOT NECESSARY WHERE THE RAMP IS
(ZERO BUBBLE).
4. EXPANSION JOINTS
ARE REQUIRED
ATPEDESTRIAN
ALL SIDEWALK
RAMP
PROTECTED
FROM
CROSS-TRAVEL.
SLOPE
BREAKS.
3. SIDE
FLARES
THAT ARE NOT PART OF THE PATH OF TRAVEL MAY BE ANY SLOPE.
610 (24")
200 (8")
MASCO CASTinTACT® | 24” BLENDED TRANSITION
FRESH SET INSTALLATION
MASCO CASTinTACT® | 24” BLENDED TRANSITION
FRESH SET
INSTALLATION
MASCO
CASTinTACT® DETECTABLE WARNING
610 (24")
200 (8")
-14 -
E.J.
1. PLACE TRUNCATED DOME DETECTABLE WARNING PANE
AT THE BASE OF CURB RAMP. INSTALL ACROSS FULL
WIDTH OF RAMP A MINIMUM 610 mm (24") IN DEPTH
SET®BACK 200mm (8") FROM BOTTOM OF CURB.
½”
E.J.
SLOPE
½” E.J.
3/16” P.J.
B
½” E.J.
SECTION B
½” E.J.
½” P.J.
or E.J.
P.J.
3/16”
A
½” E.J.
225 (9")
GUTTER
Ø LIP
½” E.J.
TYP.
5% MAX.
A
THIN SET
3/16” P.J.
SECTION A-A
THICKEN SLAB UNDER
TACTILE PANEL
www.CASTinTACT.com
2% SLOPE
5. SIDEWALK FLARE IS225
NOT(9")
NECESSARY WHERE THE RAMP IS300
PROTECTED
(12") FROM PEDESTRIAN CROSS-TRAVEL.
4. EXPANSION JOINTS ARE REQUIRED AT ALL SIDEWALK RAMP SLOPE BREAKS.
3. SIDE FLARES THAT ARE NOT PART OF THE PATH OF TRAVEL MAY BE ANY SLOPE.
2. SIDEWALK CURB RAMP SLOPES SHOWN ARE RELATIVE TO THE TRUE LEVEL HORIZON
(ZERO BUBBLE).
Ø LIP
1. PLACE TRUNCATED DOME DETECTABLE WARNING PANELS AT THE BASE OF CURB SECTION A-A
RAMP. INSTALL ACROSS FULL WIDTH OF RAMP A MINIMUM 610 mm (24") IN DEPTHBLOCKOUT
GUTTER
AND SET BACK 200mm (8") FROM BOTTOM OF CURB.
6”
2% SLOPE
½” E.J.
P.J.
3/16”
B
½”
E.J.
½” E.J.
3/16” P.J.
SLOPE
6”
E.J.
5% SLOPE
GENERAL NOTES
MAX
½”
E.J.
THICKEN SLAB UNDER
225 (9")
TACTILE PANEL
½”
E.J.
½” E.J.
½” P.J.
or E.J.
½” P.J.
or E.J.
½” E.J.
½” E.J.
THIN SET
3/16” P.J.
SECTION A-A
SECTION B
300 (12")
½” E.J.
TYP.
5% MAX.
SECTION A-A
GUTTER
BLOCKOUT
Ø LIP
THIN SET
2% SLOPE
THIN SET
A
SLOPE
P.J.
3/16”
B
SECTION B
½” E.J.
A
SLOPE
½” P.J.
P.J.
or ”E.J.
3/16
A
3/16”
½” P.J.
P.J.
or E.J.
SOLE
½” E.J. PRINCIPLES AND PRACTICES, IS THE½”
E.J.
½”SHOULD
E.J.
RESPONSIBILITY OF THE USER AND
WHILE DESIGNED IN ACCORDANCE WITH
THIN SET
3/16” P.J.
SECTION A-A
THICKEN SLAB UNDER
TACTILE PANEL
P.J. = PANEL JOINT
WHILE DESIGNED IN ACCORDANCE WITH
PRINCIPLES AND PRACTICES, IS THE SOLE
RESPONSIBILITY OF THE USER AND SHOULD
REGISTERED PROFESSIONAL ENGINEER.
B
½” E.J.
½” E.J.
½” E.J.
A
3/16” P.J.
300 (12")
E.J. = EXPANSION JOINT
½”
THINNECESSARY
SET
5. SIDEWALK FLARE IS NOT
WHERE THE RAM
½”
E.J.
FROM PEDESTRIAN CROSS-TRAVEL.
6” PROTECTED
E.J.
SECTION A-A
6. THICKEN CONCRETEE.J.UNDERBLOCKOUT
DETECTABLE WARNING PA
4. EXPANSION JOINTS ARE REQUIRED AT ALL SIDEWALK R
SLOPE BREAKS.
3. SIDE FLARES THAT E.J.
ARE NOT PART OF THE PATH OF TRA
MAY BE ANY SLOPE.
5% SLOPE
TYP.
MASCO CASTinTACT | 36” BLENDED TRANSITION
®
TRANSITION
MASCO CASTinTACT® DETECTABLE WARNING MASCO CASTinTACT | 36” BLENDED
2. SIDEWALK CURB RAMP SLOPES SHOWN ARE RELATIVE
THIN SET INSTALLATION
THE TRUE LEVEL HORIZON (ZERO BUBBLE).
THIN
SET
INSTALLATION
5% MAX.TRANSITION - THIN SET INSTALLATION
36" BLENDED
MASCO CASTinTACT | 36” BLENDED TRANSITION
THIN SET INSTALLATION
914 (36")
162 (6.5")
MAX
-15 -
Cleaning and Sealing CASTinTACT® Concrete Tactile Warning Panels
A Maintenance and Protection Guide
When properly installed, CASTinTACT® concrete tactile warning panels
removal products are available, a comprehensive source of information on
have low maintenance and provide an attractive finish. Under foot traffic,
CASTinTACT® become exposed to dirt, stains and wear. This is common
to all pavements. This technical bulletin addresses various steps to insure
the beauty of CASTinTACT® and to help restore their original appearance.
stain removal is a 28 page booklet entitled Removing Stains from Concrete
These steps include removing stains, cleaning and sealing.
by William H. Kuenning. It describes chemicals, detergents or poultice
(scrubbing) materials recommended for removing particular stains, and
the steps to be followed in removal. Make sure that the cleaners will not
remove or damage the CASTinTACT® panel. This publication recognizes
Stains on specific areas should be removed first. A cleaner should then be
used to remove any efflorescence and dirt from the entire panel. A newly
cleaned concrete can be an opportune time to seal it. In order to achieve
maximum results, use stain removers, cleaners, and sealers specifically for
colored concrete panels. These may be purchased from Masons Supply
or other reputable dealers.
that some of the treatments involve hazardous chemicals and it advises
specific precautions. Masons Supply disclaims any and all responsibility
for the application of the information. The user is advised to use cleaners
specifically made to remove stains that commonly occur on colored
concrete. They will likely be more effective.
Proprietary Stain Removers
Removing Stains
Commercial stain removers available specifically for colored concrete
provide a high degree of certainty in removing stains. Many kinds of stains
can be removed while minimizing the risk of discoloring or damaging
the panels. The container label often provides a list of stains that can be
removed. If there are questions, Masons Supply should be contacted
for help with determining the effectiveness of the chemical in removing
specific stains.
Identify the stains prior to applying the cleaner. A test application should be
evaluated in a small inconspicuous stained area for cleaning effectiveness.
Asphalt and emulsified asphalt | MASCO CITRI-CLEAN
Cutback asphalt and roofing tar | MASCO CITRI-CLEAN
Blood, candy, ketchup, mustard, grease drippings from food | MASCO CITRI-CLEAN
Caulking | MASCO CITRI-CLEAN
Chewing gum | MASCO CITRI-CLEAN
Clay soil | DEIDRICH 202V
Creosote | MASCO CITRI-CLEAN
Leaf, wood rot, or tobacco stains | DEIDRICH 202V
Mortar | DEIDRICH 202V
Some stains may require repeated applications of the remover to achieve
effective cleaning. This is often the case for deep set oil stains. Make sure
Smoke | DEIDRICH 202V
that the cleaners will not remove or damage the CASTinTACT panel.
With all stain removers, cleaners and sealers, the label directions and
Dried paint | MASCO CITRI-CLEAN
®
warnings should be read and carefully followed for all precautions, and
for first aid.
Oil or grease that has penetrated | MASCO CITRI-CLEAN
Tire skid marks | MASCO CITRI-CLEAN
Overall Cleaning
Start removal of stains at the bottom of the panel and work up the slope
in manageable sections. By working up the slope, cleaning fluids will
drain down the pavement. This technique assists in uniform removal while
allowing the used cleaner to be rinsed away consistently.
Overall cleaning of the panel can start after stains are removed. In
Take care in selecting and applying cleaning products, as acidic ones
may harm vegetation and grass. These cleaners should not run onto
vegetation. When using strong acidic stain removers or cleaners that
might drain onto vegetation, spread some agricultural lime on the ground
around the perimeter of the concrete. This will help neutralize the cleaner
and reduce the potential for damage to grass and/or vegetation. After
cleaning, remove the lime from the vegetated ground in these areas.
for any cracked or broken units. These should be replaced. Badly stained
preparation for cleaning, low tree branches, shrubs and vegetation
adjacent to the pavement should be tied back or covered to protect from
overspray of cleaning solutions or sealers. The area should be inspected
units can be replaced, but it is usually easier to clean stains and less costly
than replacing the panels.
When panels have stains too difficult to remove, replace them with
the same type of units. If panels must be replaced, there may be a
difference in color from the surrounding panels. This variation should
eventually disappear. If color variation is unacceptable, controlled use
Removal of Common Stains
There are proprietary cleaning products specifically designed for
colored concrete panels. Many have been developed through
extensive laboratory and field testing to ensure cleaning effectiveness.
Using manufactured cleaning chemicals for specific stains relieves the
user from the uncertainty of attaining the proper mixture of chemicals.
These chemicals should be used whenever possible. If no proprietary stain
of proprietary cleaners designed to improve the color of concrete panels can
minimize variation.
Removal of accumulated dirt and efflorescence is the objective of cleaning.
It is essential in preparing the panels for sealing as well. Many cleaners
effective in removing dirt and efflorescence are a mix of detergent and acid.
Cleaners with strong acids will change the color of the panels slightly.
-16-
JAN 2010
®
CASTinTACT
| maintenance & protection guide
CASTinTACT® | maintenance & protection guide
The degree of change can be controlled by the type of acid in the
from within until the moisture is exhausted.
cleaner, its concentration and the length of time on the panels. Proprietary
by low temperatures and moist conditions; condensation, rain, and dew.
cleaners will give specific instructions on their application. These directions
If concrete placement happens during a dry period of the year, the next
should be followed. In order to achieve proper results, cleaners should
cycle of colder, wet weather may trigger the efflorescence to occur.
be tried on a small area to test results and any color changes. The
concentration and time on the panel can be adjusted accordingly.
Efflorescence is enhanced
Efflorescence will continue until all the salts have been exhausted. It
may remain for months and some of it may wear away. In no way does
Protective clothing and goggles should always be worn when using
it affect the structural integrity of the concrete.
acidic solutions.
Any concrete product containing portland cement can produce
Anticipate where the cleaning fluids will drain, i.e, across the pavement
and not onto grass or vegetation. Sediment or cleaners allowed to
pond in low spots may stain the panels. Be sure to rinse these areas
thoroughly. Turn off all automatic sprinkler systems during cleaning,
sealing and drying.
efflorescence. Calcium hydroxide (free lime) a by-product is produced
in the hydration process of portland cement with water (approximately
140 pounds per cubic yard of concrete). During this reaction period,
the excess water mixture, a calcium hydroxide solution migrates through
capillaries in the concrete to the surface where it evaporates. There
it combines with carbon dioxide from the air to produce calcium
Professional Cleaning Methods
carbonate (insoluble salt). Only 0.2 ounce of calcium carbonate per
For most jobs, cleaning should be handled by a professional company
experienced in the use of cleaners and spray equipment. Professionals
typically use a pressure washer. The various methods for applying sealers
are covered later.
A high pressure sprayer applies cleaner and water between 600 and
2,000 psi (4.1 and 13.8 MPa), and at a rate between 6 and 12 gallons/
minute (22 and 45 liters/minute). The rate of flow is adjusted to ensure
square yard of surface area is needed to cause a significant change
in color. In colder temperatures calcium hydroxide is actually more
soluble to migrate to the surface. Efflorescence can also be caused
by sulfates of either sodium or potassium that are more soluble in water
than calcium and can easily be rinsed away. These type of salts can
come from cement, aggregates, water, or admixtures.
Removing Efflorescence
sufficient rinsing. The pressure loosens dirt and pushes water from the
Powdery Efflorescence
surface without the need for scrub brushes. The nozzle type and its
The recommended procedure is to allow the natural process to occur.
distance from the panels surface influences the effectiveness of the
cleaning as well. A nozzle that creates a wide spray enables a large
area to be covered efficiently.
Powdery efflorescence can often be removed with a stiff brush on a dry
surface. Pressure washing or wet scrubbing can put the efflorescence
in solution with water so it can be rinsed away. You must be careful to
Cleaners to remove efflorescence are applied with a low pressure pump
spray under 30 psi (0.2 to 0.7 MPa). A shower type spray nozzle will help
ensure even distribution of the cleaner. Cleaning chemicals are applied,
rinse the entire surface with fresh water so that no residue is left to dry on
the concrete. Use an air jet or a wet vacuum to remove any standing
water. Any remaining water can cause new efflorescence to appear.
allowed to sit an appropriate time, then rinsed away with a high pressure
Cleaning on dry sunny days is best.
sprayer. The final rinse should be water only.
Hard Efflorescence (Milky Film)
For small areas, an adequate cleaning job can be achieved without this
Best results are obtained by using a proprietary masonry and concrete
equipment. Cleaners can be applied by hand, the panels scrubbed to
remove dirt and efflorescence, then thoroughly rinsed with water from
a garden hose. Scrub brushes with steel bristles are not recommended.
They will loosen from the brush, rust, and leave stains. Brass or plastic
bristles are acceptable.
cleaner with pressure washing equipment. The acid in proprietary
cleaning chemicals are buffered and blended with other chemicals to
provide effective cleaning without damage to the surface when used
properly. Always refer to the manufacturers recommendations for proper
dilution, application and protection of adjacent surfaces. Cleaners are
The additional time required to clean and seal panels without the help
of a professional should be weighed against investing in a competent
company to do the job. Professionals have the equipment and
experience with the various chemicals. They can achieve the highest
level of results in the least amount of time.
generally applied in sections beginning at the lowest point of the surface.
If the area is large, a sprayer is an efficient means to apply the cleaner.
The chemicals are scrubbed on the surface, then pressure washed away.
Results can be verified after letting the area dry for 24 hours. In most
instances one application is sufficient. However, in severe instances of
efflorescence, a second application may be necessary.
What Is Efflorescence?
Efflorescence is a white powdery deposit or milky film which can appear
on the surface of concrete as water evaporates. Efflorescence occurs
with all concrete and is most noticeable with colored concrete. It is
generally accepted that the addition of inorganic color pigments does
not enhance or retard the occurrence. Efflorescence is caused when
soluble salts and other water dispersible materials migrate upward to the
Note: All acid based cleaners and acidic residues are dangerous to
cars, plants and people. Wear proper safety gear and take adequate
precautions. It is always recommended to do a small scale test section
to determine dilution ratios and effectiveness before a full scale cleaning
operation are performed.
Natural Process
surface of concrete. This is caused by the sun evaporating the moisture
If no attempt is made to remove efflorescence it can naturally breakdown
on the surface. This capillary wicking action continues to draw moisture
after a period of time. Soluble calcium hydrogen carbonate gradually
-17 -
JAN 2010
®
CASTinTACT
| maintenance
& protection
CASTinTACT® | maintenance
& protection
guide guide
formed from the insoluble calcium carbonate with the continued
concrete, they can deter efflorescence from appearing on the surface
influence of carbon dioxide and water. Calcium hydrogen carbonate
of concrete panels. They initially enhance colors and produce a flat, no
is very soluble and easily washed away with rainwater. Depending on
gloss finish on the panel surface. This makes silanes and siloxanes very
weather conditions this process may however take up to two years to
suitable on exterior areas for resisting efflorescence. Silanes and siloxanes
complete.
do not resist penetration of petroleum stains unless they have additives
specifically for that purpose. When required, proprietary mixtures with
Snow & Ice Removal
The safest deicers for concrete are also the most common: sodium
chloride-rock salt, and calcium chloride pellets. Sodium chloride,
however, will damage vegetation and corrode metal. Calcium chloride
works better at lower temperatures, has little effect on vegetation but
promotes rust. Ammonium nitrate and ammonium sulfate fertilizers, sold
as safe for grass and shrubs can rapidly attach and disintegrate concrete.
Magnesium chloride chemically disintegrates concrete slowly. Urea in
low concentrations will not damage plants, but will attack concrete.
Manufacturer’s usage recommendations should always be followed to
prevent over applying deicers. Do not use a chemical deicer to melt
every bit of snow and ice. Once the bond between ice and pavement
is broken, the slush and residual deicer should be mechanically removed
using a large rotary brush attached to a small tractor to prevent
refreezing.
additives can increase petroleum stain resistance.
Silanes have smaller molecules, so they penetrate farther into the
concrete than larger siloxane molecules. However, they are more
volatile (tend to evaporate) until they bond to the concrete. Silane
sealers generally require a higher percent of solids to counteract their
rate of evaporation. Therefore, silanes tend to be more expensive than
siloxanes. Silanes and siloxanes are typically used as water repellents
for concrete bridge decks, parking garages, and masonry walls. Their
primary use for reinforced concrete structures is to prevent the ingress
of chloride ions from de-icing salts. This intrusion causes reinforcing steel
corrosion in the concrete, and a weakened structure. Their ability to
decrease intrusion of chloride materials makes them useful on panels
subject to deicing salts or salt air, such as walks, streets, parking lots,
plaza roof and parking decks.
Sealing Procedures
Sealers
Uses: Application of a sealer follows stain removal, efflorescence removal
and overall cleaning. Sealers are used for aesthetic and functional
reasons. Sealers offer many functional advantages.
All dirt, oil stains and efflorescence must be removed prior to sealing. The
cleaned surface must be completely dry prior to applying most sealers.
Allow at least 24 hours without moisture or surface dampness before
application. The panels may draw efflorescence to the surface, or the
Sealers for Concrete Pavers
sealer may whiten.
If the panels are sealed, Masons Supply should be consulted prior to
verify that the sealer is compatible and will perform in the environment
planned for its use. Sealers not recommended for use with panels are
acrylics, urethanes, epoxies, alkyds, esters, and polyvinyl acetates.
Cover and protect all surfaces and vegetation around the area to be
sealed. For exterior (low-pressure) sprayed applications, the wind should
be calm so that it does not cause an uneven application, or blow the
sealer onto other surfaces. For many sealers, especially those with high
Some municipalities regulate building materials with high volatile organic
VOC’S, wear protective clothing and mask recommended by the sealer
contents (VOC’s). The restrictions usually apply to solvent based sealers.
manufacturer to protect the lungs and eyes.
The VOC level of a sealer refers to the pounds per gallon (or grams per
Sealers can be applied with a hand roller if the area is small (under 1000
liter) of solvent which evaporates from the sealer, excluding the water.
VOC’s have been regulated since they can contribute to smog. Most
water based sealers comply with VOC restrictions and some solvent
based products may comply as well. The user should check with the
ft² or 93 m²). For larger areas, more efficient application methods are a
low pressure sprayer.
Hazardous Materials
sealer supplier to verify VOC compliance in those areas which have
The U.S. Federal Government and Canadian Government require
restrictions.
that all shipments of hazardous materials by common carrier must be
Many solvent based products are combustible and emit hazardous fumes.
Therefore, flame and sparks should be prevented in the area to be sealed.
Persons applying sealers should wear adequate breathing and eye protection.
Never use solvent based sealers in a poorly ventilated or confined area.
Silanes/Siloxanes
accompanied by a Material Safety Data Sheet (MSDS). All chemical
manufacturers must supply sheets to shippers, distributors and dealers
of cleaners and sealers if the materials are hazardous. The MSDS must
accompany all shipments and be available to the purchaser on request.
The MSDS lists the active ingredients, compatibility and incompatibility
with other materials, safety precautions and an emergency telephone
Silanes and siloxanes are durable and penetrate concrete well. Silanes
number if there is a problem in shipping, handling or use. The user should
are the simpler form that, when exposed to moisture begin to link up to
refer to the MSDS for this information.
other silanes. Siloxanes do the same linking together. Both chemicals
become a polymer, curing as a film in the capillaries of the concrete.
A hydrophobic barrier to moisture is created, preventing moisture
from entering but allowing the concrete to “breathe” or release water
References
1. Cleaning and Sealing Interlocking Concrete Pavement - A Maintenance
and Protection Guide.
vapor.
Because silanes and siloxanes reduce moisture from entering the
-18-
JAN 2010
INSTALaTACT ®
CASTinPLACE
(US Patent - No 7,121,048)
Blended Transition
Thin-Set
Panel Caddy
Distributed by:
Dome Repair System
THE CASTinTACT® ADVANTAGE:
•
•
•
•
•
•
•
•
•
•
•
Cementitious concrete panels used for both new construction and retrofit.
Easy to cut and core, use on radiuses, around bollards, stairs, and vault boxes.
Textured concrete finish for wet and dry slip resistance.
High compressive and flexural strength, durable, tough and crack resistant.
Contrasting color is integral throughout concrete panel.
Compatible with concrete base, similar thermal co-efficient of expansion as base.
Resistant to severe exposure, wet freeze thaw damage from de-icing chemicals.
Panels become an integral and permanent part of the walking surface.
Unique patented early entry fast-set installation method that takes 10 minutes.
CASTinTACT® 3 panels do not float during installation. Panels stay where placed.
Recyclable concrete panel.
Total CASTinTACT® Solution - Installation, Durability, and Maintainability.
JAN 2012

CASTinTACT® Precast Concrete Tactile Warning Panels

Transcription

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