Hexacon - Pavestone

Erosion Control System
Hexacon
™
A Pavestone
Company
Hexacon
™
The Hexacon™ product is a precast interlocking articulating concrete block used for erosion control protection in various hydrological
applications. The Hexacon™ product is available in both open- and closed-cell configurations, offering the ultimate hydraulic stability
and/or ecological benefit on critical or environmentally sensitive projects.
Hexacon™ product may be installed as a preassembled mattress or placed individually by hand. The Hexacon™ block is used in conjunction
with a geotextile fabric underlayment to provide scour protection and prevent soil loss. This system endows owners, designers and
contractors with proven solutions to wide variety of erosion control problems.
The Hexacon™ product has been proven in both laboratory and field applications since 1995. Time after time, the Hexacon™ system
continues to provide economic, ecological and hydraulic value to projects for specifiers and end users alike.
COMPOSITION AND MANUFACTURE
Hexacon™ is made from a “no slump” concrete mix. Made under extreme pressure and high frequency vibrations, Hexacon™ has a
compressive strength greater than 4000psi, a water absorption maximum of 7% and will meet or exceed ASTM D 6684.
INSTALLATION
Cover area to be paved with appropriate geotextile* fabric. The geotextile shall be
placed so that upstream and upslope strips overlap downstream and downslope strips.
Overlaps shall be in the direction of flow wherever possible. The longitudinal and
transverse joints shall be overlapped at least 3 feet (91cm) for below-water
installations and at least 1.5 feet (46 cm) for dry installations. The geotextile shall
extend beyond the top, toe and side termination points of the revetment.
Placement of the Hexacon™ system shall be performed to ensure that the individual
blocks lie in intimate contact with the geotextile and subgrade. The joint spacing
between adjacent blocks is to be maintained so that binding of blocks does not occur
and so that block to block interface is achieved. In areas of curvature or grade
change, alignment of an individual block with adjacent blocks shall be oriented such
that intimate contact between the block, geotextile, and subgrade is maintained and
block to block interface is achieved.
When assembling cabled mattresses prior to installation or cabling the matrix after the
blocks have been laid in place, cables or ropes shall be inserted longitudinally through
each block and the loose ends fastened to insure blocks remain bound in the event of
matt lifting or hydraulic scour.
Avoid damage to the geotextile or subgrade during mat installation. The Hexacon™
placement shall begin at the upstream section and proceed downstream. On sloped
sections, placement shall begin at the toe of the slope and proceed upslope. Individual
blocks within the plane of the finished system shall not exceed a 0.5 inch (13 mm) or
greater protrusion than the tolerance referenced in related contract documents*.
* Product selection shall be under the direction of a licensed engineer familiar with site
specific conditions and local state/municipal requirements. Engineering is typically
required and is recommended.
PRODUCT INFORMATION
Hexacon™ Open shown
Hexacon™ Closed
Hexacon™ Open
Nominal Dimensions 16 1/8 L x 12 W x 4 3/4" H
16 1/8 L x 12 W x 4 3/4" H
Wt./Stone
Stones/Pallet
Sq. Ft./Pallet
Approx. Wt./Pallet
Product Number
42 lbs. Avg.
48
54
2016 lbs.
1854
45 lbs. Avg.
48
54
2160 lbs.
1864
Fractional Dimensions are nominal
Hexacon ™ HX475-20 Mattress
CABLE LOOPS
Locate Anchor Here
Up to 8'
12" O.C.
The open area of the articulating concrete block system is typically either backfilled
with suitable soil for revegetation, or with 3/8 to 3/4 inch (10 mm to 20 mm) diameter
crushed stone. Backfilling with soil or granular fill within the cells of the system shall
be completed as soon as practical after the revetment has been installed. When topsoil
is used as a fill material above the normal waterline, overfill by 1 to 2 inches (25 to
50 mm) to account for backfill material consolidation.
APPLICATIONS
Storm Channels & Ditches • Dikes & Levees • River
& Streams • Bridge Abutments • Embankments
Lakes & Reservoirs • Detention Ponds • Spillways
Boat Ramps • Earthen Dams
HEXACON BLOCKS
Cable End Crimps (4)
Complete installation & specification details are available by contacting your
Pavestone Sales Representative.
w w w. h y d r o p a v e . c o m
, Improving Your
© 2007 by Pavestone Company. All Rights Reserved.
Landscape™, Hexacon® and HydroPave® are trademarks of the Pavestone Company.
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Atlanta, GA:
Austin/San Antonio, TX:
Boston, MA:
Cartersville, GA
Charlotte, NC:
Cincinnati, OH:
Colorado Springs, CO:
Dallas/Ft. Worth, TX:
Denver, CO:
Hagerstown, MD:
Member of ASLA and NCMA
Up to 40'
(770)
(512)
(508)
(770)
(704)
(513)
(719)
(817)
(303)
(240)
306-9691
558-7283
947-6001
607-3345
588-4747
474-3783
322-0101
481-5802
287-3700
420-3780
ICPI Charter Member
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Houston, TX:
Kansas City, MO:
Las Vegas, NV:
New Orleans, LA:
Phoenix, AZ:
Sacramento/
Winters, CA:
• St. Louis/
Cape Girardeau, MO:
(281)
(816)
(702)
(985)
(602)
391-7283
524-9900
221-2700
882-9111
257-4588
(530) 795-4400
(573) 332-8312
Retaining Wall Systems
SKU# CM 183v4 07/07
Locate area to be paved with Hexacon™ and mark limits of block installation. Contact
local authorities for locating and identifying existing utilities and check for new or
proposed utility locations. Remove any brush, rock or otherwise unacceptable
materials interfering with final grading prior to placement of fabric and block*. The
subgrade shall be raked, screeded, or rolled by hand or machine to achieve a smooth
compacted surface that is free of loose material.