Geo-Bensch Ranch-Khalil Residence

Transcription

Geotechnical Investigation
Bensch Ranch-Khalil Residence
15720 East Broken Bit Road
Mayer, Arizona
ProTeX Job No.: 4368
3206 South Fair Lane / Tempe, Arizona 85282-3102 / (o) 602-272-PTX1 (7891)
Dispatch 602-272-7890 / (f) 602-272-7892
www.protex-az.com
PHOENIX
3206 SOUTH FAIR LANE
TEMPE, ARIZONA 85282
(O) 602-272-PTX1 (7891)
DISPATCH 602-272-7890
(F) 602-272-7892
WWW.PROTEX-AZ.COM
TUCSON
916 W GRANT ROAD
TUCSON, ARIZONA 85705
(O) 520-352-1050 (EXT 157)
DISPATCH 520-352-0150
(F) 520-352-0150
WWW.PROTEX-AZ.COM
May 20, 2015
Darwish Khalil
Re:
Geotechnical Investigation
Project:
Mayer, Arizona
Attention:
Darwish Khalil
At your request, ProTeX has completed a soil investigation for the subject project. The
accompanying report includes field observations and laboratory testing supporting our conclusions
and recommendations for the proposed development.
Respectfully submitted,
ProTeX - the PT Xperts, LLC
Keith E. Ritter, E.I.T.
AZ Certification No. 11780
Date Expires: 3/31/2016
Delbert A. Rapier, M.S.E., P.E
Mayer, Arizona
TABLE OF CONTENTS
EXECUTIVE SUMMARY
1.0
INTRODUCTION............................................................................................................ 1
1.1
Scope ............................................................................................................................. 1
1.2
Proposed Site Development........................................................................................... 1
1.3
Terms and Conditions .................................................................................................... 1
2.0
FIELD AND LABORATORY TESTING ..................................................................... 2
2.1
Geotechnical Site Reconnaissance ................................................................................ 2
2.2
Field Investigation ......................................................................................................... 2
2.3
Laboratory Testing ........................................................................................................ 2
3.0
GENERAL SITE CONDITIONS ................................................................................... 3
3.1
Soil Stratigraphy ............................................................................................................ 3
3.2
Potential for Soil Hydro-Collapse (Settlement Potential) ............................................. 3
3.3
Potential for Soil Expansion (Swell Potential) .............................................................. 4
3.4
Potential for Corrosion .................................................................................................. 4
3.5
Excavation and Workability .......................................................................................... 4
3.6
Earth Fissure Review ..................................................................................................... 5
4.0
RECOMMENDATIONS................................................................................................. 5
4.1
Foundations ................................................................................................................... 5
4.2
Conventional Reinforced Foundation System ............................................................... 5
4.3
Post-tension Slab-on-Grade Foundation System ........................................................... 7
4.4
Exterior Slab-on-Grade.................................................................................................. 7
4.5
Lateral Loading.............................................................................................................. 8
4.6
Drainage......................................................................................................................... 8
4.7
Slope Stability................................................................................................................ 9
5.0
SITE PREPARATION .................................................................................................. 10
6.0
CLOSURE ...................................................................................................................... 12
6.1
Limitations ................................................................................................................... 12
6.2
Recommended Additional Services............................................................................. 12
Mayer, Arizona
APPENDICES
Appendix A – Laboratory Test Results
Liquid and Plastic Limits Test Report
Grain Size Distribution Curve
Expansion Tests
Chloride, Sulfate
Appendix B – Site Information
Site Plan
Appendix C-Field Testing
Boring Logs
Mayer, Arizona
Executive Summary
ProTeX was contracted by Darwish Khalil to provide general information with respect to the
engineering characteristics of onsite soils and provide recommendations for foundations and pad
preparation for the site referred to as Bensch Ranch-Khalil Residence located at 15720 East
Broken Bit Road in Mayer, Arizona.
This firm understands the proposed development will consist of a custom one or two story single
family residential structure imposing relatively light to moderate foundation loads.
Field investigation and laboratory testing indicated that the site consists of mainly of gravely clay
and sandy clay soils with medium to medium-high plasticity, with varying amounts of gravel.
Drilling refusal was encountered at depths ranging from 4.5 to 5.5 feet due to a dense stratum of
gravel and cobbles. The expansion potential for site soils when foundation bearing soils are
exposed to a moisture increase range from very low to low. All lots are subject to expansive soils
and will require moisture conditioning of the building pads prior to placement and construction
of the foundation system. Post-tensioned slab/foundation systems are recommended.
Settlements at the site are anticipated to be within accepted tolerances provided that pad
preparation is performed as specified and no significant changes in moisture content of
foundation/floor slab occurs and proper drainage and irrigation control are maintained. During
and after building construction drainage away from the structure should be maintained to direct
roof run off away from the structure and off the lot for the life of the project. In no case should
long-term ponding be allowed near structures. Proper design and placement of yard vegetation
and irrigation systems should be used so that structural foundation slab bearing soils are not
exposed to moisture content fluctuations.
The site is located within an area that is an area of regional groundwater withdrawal; however,
based on the Earth fissure Maps provided by the Arizona Geological Survey there is no
indication of earth fissures on site or within approximately 58 miles of the site.
Based on the findings of the soils investigation, the site is considered suitable to construct a
custom single family residential structure imposing relatively light to moderate foundation loads
provided floor and foundation systems are properly designed, soils properly conditioned as
specified and proper maintenance of drainage and irrigation systems. All parties should be aware
that the site soils are clayey and have a potential for expansion. Any fluctuation of moisture
content of foundation bearing soils may result in slight movements that may result in cosmetic
distress.
Mayer, Arizona
1.0 INTRODUCTION
1.1 Scope
ProTeX was retained by Darwish Khalil, to evaluate the surface and subsurface soil conditions.
The content of this report contains the findings from the field exploration and laboratory testing,
with supporting recommendations for the proposed development.
1.2 Proposed Site Development
It is this firm’s understanding the proposed development will consist of a custom one or two story
residential single family structure constructed of wood and/or steel frame construction imposing
relatively light to moderate foundation loads.
1.3 Terms and Conditions
This report was prepared for Darwish Khalil. The contents of this report may not be relied upon
by any other party without the expressed written permission of ProTeX - the PT Xperts, LLC and
the written permission of Darwish Khalil. The report presents site conditions at the time of the
investigation and for the aforementioned proposed development. The report should be updated
prior to construction if a maximum of one year has elapsed from the issued date.
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Mayer, Arizona
2.0 FIELD AND LABORATORY TESTING
2.1 Geotechnical Site Reconnaissance
The site consists of approximately 3/4 acres of a vacant undeveloped custom home lot. At the time
of the field site visit on April 29, 2015 the following site conditions were observed:

Development within the custom residential community of Bensch Ranch included
completed paved roadways and installed public utilities

Moderate vegetative coverage was found across the property including brush, bushes and
various desert cacti

Topography of the site is elevated approximately 3 to 4 feet from the residential roadway
(Broken Bit Road) and overlooks a hillside of approximately 50 to 60 feet to the north

General slope of the property trends to the north and south due to the grade break created
from the hilltop geometry
2.2 Field Investigation
A total of 2 test holes were completed at the site for the purpose of evaluating subsurface
conditions. Test holes terminated at drilling refusal depths ranging from 4.5 to 5.5 feet due to a
dense stratum of gravel and cobbles. At each test boring location the soils encountered were
visually observed, classified, logged and representative samples were obtained where applicable.
Refer to the site plan in Appendix B for approximate test pit and test boring locations.
2.3 Laboratory Testing
Subsequent to the field investigation, soil samples were submitted for laboratory testing. Tests
were performed to determine the following:

Sieve Analysis and Atterberg Limits- Used for formal classification of soils in general
accordance with the Unified Soil Classification System (USCS) per ASTM Test Method
D2487. Sieve analysis is performed in general accordance with ASTM Test Methods
2
Mayer, Arizona
D421, D422 and D-1140. The Atterberg Limits were determined in general accordance
with ASTM Test Method D-4318.

Expansion
Index-
To
determine
the
potential expansion of remolded soils based
on the Expansion Index Test Method
(ASTM D4829).

Sulfates and Chlorides- Soils were tested for water soluble sulfate (ARIZ 733) and
chloride (ARIZ 736) content. This content could negatively impact project steel/concrete.
The test results are presented in Appendix A.
Laboratory Test Summary
Location
Depth
(feet)
B1
B2
2-4'
0-3'
Plasticity
Index
(PI)
15
23
Percent
Passing
#200 Sieve
16.5
39.1
Percent
Passing
0.002mm
5.0
11.7
USCS Soil
Classification
GC
SC
Expansion
Potential
(%)
19
32
See Appendix A for a detailed compilation of the laboratory test results.
3.0 GENERAL SITE CONDITIONS
3.1 Soil Stratigraphy
Based on the field exploration and laboratory testing the subsurface profile consist primarily of
clayey gravel and sandy clays with a plasticity index ranging from 15 to 23, with varying
amounts of gravel extending to depths explored. Refer to the boring logs in Appendix C for a
detailed description of the subsurface soil profile.
3.2 Potential for Soil Hydro-Collapse (Settlement Potential)
Blow counts (N-values) were performed but no laboratory testing could be performed due to the
existence of gravels and disturbance of samples due to vibration. The field blow counts indicate
3
Mayer, Arizona
a low potential for hydro collapse (settlement). (See the attached laboratory test results and
boring logs).
3.3 Potential for Soil Expansion (Swell Potential)
The expansion potential of the native soils, to the depths explored based on ASTM test method
D4829, is considered very low to low. Soils selected for testing for expansion potential were those
that represented clayey soils with varying plasticity index values to determine the range of
expansive potential soils across the site. The Expansion Index values typically trend to be higher
with higher plasticity indexes as can be seen in the test data for the site (Expansion Index value of
32). However, soils that have high plasticity indexes but have a small percent passing the 200 sieve
may have lower potential for expansion based on the soil composition as can also be seen in the test
data for the site (Expansion Index value of 19).
3.4 Potential for Corrosion
Soils were tested for water soluble sulfates and chlorides. The test results are presented in Appendix
A. The International Building Code specifies limits for soluble sulfate levels of 1000ppm. The soils
tested yielded results below these levels and do not require any specialized design requirements.
3.5 Excavation and Workability
Based on the soil borings, it is anticipated that conventional excavation equipment may be utilized
to depths of approximately 4.5 to 5.5 due to the dense stratum of gravel and cobbles encountered
during drilling activities. However, this generalized assessment is not intended to be the sole basis
for contractors preparing earthwork bids. Cemented soils, cobbles, boulders, and weathered/broken
bedrock may make excavation more difficult than expected. In addition, the relative ease/efficiency
of excavation is heavily dependent on operator skill and the type of equipment assigned to the
project. Thus, prospective earthwork contractors bidding on this project need to assess site
excavation conditions for themselves. Trench shoring, benching, or laying back of excavations
greater than 3 feet in depth may be required to satisfy government safety regulations for personnel
safety.
4
Mayer, Arizona
3.6 Earth Fissure Review
The site is located within an area of regional groundwater withdrawal. Arizona Geological
Survey has been commissioned to study earth fissures associated with the groundwater
withdrawal. The Earth Fissure Maps provided by the Arizona Geological Survey indicate no
known earth fissures on site or within approximately 58 miles of the site.
4.0 RECOMMENDATIONS
The recommendations contained herein are based on the findings of the field investigation,
laboratory test results and local experience.
4.1 Foundations
It is highly recommended that the design of foundations be done under the direction of a registered
professional engineer with structural expertise. Conventional foundations may be utilized in the
design of lightly loaded single family residential structures. It is recommended that foundation
excavations be inspected prior to placement of concrete to ensure they are free of debris and loose
soils.
4.2 Conventional Reinforced Foundation System
Shallow foundations systems should bear a minimum of 2.0 feet below lowest adjacent grade.
Due to the properties of the native soils as indicated by laboratory testing, it is recommended that
foundations bear on native undisturbed soils or approved controlled compacted fill. Controlled
compacted fill may consist of approved material that is placed or areas that are scarified,
moisture processed and re-compacted. The following table provides allowable bearing capacities
for the site.
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Mayer, Arizona
Allowable Bearing Capacity for Shallow Depth Conventional reinforced Foundation
Systems:
Allowable Soil
*Footing Depth
Bearing
Bearing Capacity
(ft.)
Stratum
Firm, Native Undisturbed
2.0
1500 psf
Soils or Compacted Fill
*Depth to base of perimeter footings is measured from the lowest adjacent finished grade elevation within 5 feet
of edge of footing. Depth to base of interior footings measured from top of floor slab.
Foundation widths should meet building code minimums and should not be larger than 7 feet and
4 feet, for spread and continuous foundations, respectively.
The recommended foundation bearing pressures should be considered allowable maximums for
dead plus design live loads and may be increased by one-third when considering total loads
including transient wind or seismic forces. The weight of the foundation concrete below grade
may be neglected in dead load computations.
Foundation excavations should be inspected so that they are free of loose soil that may have blown
or sloughed into the excavations and ensure that the footings will bear upon firm native undisturbed
soils or engineered fill.
The stem walls should be well reinforced to distribute stresses caused by possible non-uniform
bearing capacity and/or minor differential foundation movements. It is recommended that stem
walls and footings be reinforced. The structural engineer should design the footings and
stems for the expansive site soil conditions with differential movement on the order of 0.71
inches.
Preparation of the site to raise or lower the building pad should be done in accordance to the
Section 5 - Site Preparation.
6
Mayer, Arizona
Interior slabs on grade should bear directly on 4 inches of Aggregate Base Course (ABC). The
concrete slabs should consist of a minimum of a minimum thickness of 4 inches and be
reinforced to account for site soil conditions.
4.3 Post-tension Slab-on-Grade Foundation System
For the purpose of the post-tension slab design an allowable bearing capacity of 1250psf is
assigned. The post-tensioned foundation system should bear on the existing soils provided they
are firm.
The following design parameters are assigned for use in the structural design of the foundation
systems for the aforementioned blocks.
Soil Subgrade Modulus (Ks): 150 pci
Edge Moisture Variation (Em):
Edge Lift Condition:
Center Lift Condition:
Maximum Differential Soil Movement (Ym):
Edge Lift Condition:
Center Lift Condition
4.6 feet
9.0 feet
0.71 inches
0.25 inches
4.4 Exterior Slab-on-Grade
Exterior slabs on grade may bear on 4 inches of ABC or directly on grade and contain a
minimum of 5.0 sacks of Portland cement per cubic yard with a minimum thickness of 4 inches.
A minimum of 6 inches of subgrade should be scarified moisture processed and compacted to the
specifications in the site preparation section of this report.
7
Mayer, Arizona
4.5 Lateral Loading
The design of retaining walls for the site should be designed to retain the lateral loads applied by
the site soils. The following values are provided in Equivalent Fluid Pressures for unrestrained,
restrained and passive resistance.
Lateral Equivalent Fluid Pressures for Backfill:
*Unrestrained Walls
*Restrained Walls
Passive Resistance
Coefficient of Base Friction:
35 pcf
50 pcf
373 pcf
0.50
*The backfill pressures stated do not include temporary forces imposed during compaction of the backfill,
swelling pressures developed by over-compacted clayey backfill soils, hydrostatic pressures from inundation of
backfills, and/or surcharge loads. Walls should be suitably braced during backfilling to prevent damage and
deflection.
Design of below grade structures should account for or prevent potential hydrostatic buildup. In
addition, any below grade structure penetrations to facilitate drainage may allow piping of soil
and water if not addressed properly in the design of the structure.
4.6 Drainage
Establishment and long term maintenance of proper lot post-construction surface drainage is
also critical. Because of the potential for an adverse
effect on structures, it is highly recommended that
moisture infiltration and fluctuation of bearing soils for
structural foundation/floor be minimized. Roof runoff
should be collected and discharged away from the
structures. Drainage of surface water away from the
structures should be provided during construction and maintained by the homeowner throughout the
life of the structure. In no case should long-term ponding be allowed near structures. IRC Section
R401.3 specifically requires “The grade away from the foundation walls shall fall a minimum of 6
8
Mayer, Arizona
inches within the first 10 feet. Where lot lines, walls, slopes or other physical barriers prohibit 6
inches of fall within 10 feet, drains or swales shall be provided to ensure drainage away from the
structure”. Thus, un-drained landscape “islands” bounded by concrete flatwork and/or foundation
wall/slab elements are to be avoided.
In yard areas, it is suggested that, where possible, finished slopes extend a minimum of 10 feet
horizontally from building walls and have a minimum vertical fall of 6 inches. Backfill against
footings, exterior walls and in utility trenches should be compacted to minimize the possibility of
moisture infiltration through loose soil.
Drainage and moisture infiltration should be considered during landscaping design and
placement to ensure foundation and slab bearing soils are not exposed to moisture infiltration or
moisture content fluctuation. Distance from structures to vegetative plants, planters, irrigation
lines or landscape borders should not be less than 3 feet. Trees should be placed at a distance of 8
feet or more. Landscape irrigation schedules should be adjusted for climatic changes to minimize
moisture content fluctuation of foundation bearing soils.
4.7 Slope Stability
Stability of cut and fill slopes are dependent on soil properties such as density, cohesion,
moisture content, etc. Site specific laboratory testing and experience indicates that these
properties can vary significantly across the site. Temporary slopes for installation of
underground utilities or structures should follow OSHA guidelines. A minimum slope of 2.5:1
horizontal to vertical may be utilized for design of cut slopes and compacted fill slopes. The
slope recommendation does not consider safety for fall dangers.
9
Mayer, Arizona
5.0 SITE PREPARATION
The following recommendations are presented for site grading. It is recommended that a ProTeX
geotechnical engineer’s representative observe and test the earthwork and foundation portions
of this project to ensure compliance with this Soil Investigation report.
Structures and surface vegetation should be removed from the proposed building foot print. All
underground structures, utilities and tree roots should be chased and removed. The building pad
should be over excavated to a depth of 1 foot below existing grade, to ensure that structures and
organics/roots are removed from building pad area.
The surface soils within structure footprints should be scarified a minimum of 8 inches, moisture
processed and compacted. It is recommended the over-excavation extend across the entire
building pad and to a minimum lateral distance of five feet beyond foundation edges.
After clearing and over-excavation, the exposed soils should be scarified until the surface is free
from ruts, or other uneven features that would tend to prevent uniform compaction by the equipment
used.
Sloping areas steeper than 5:1 (horizontal: vertical) should be benched to reduce the potential for
slippage between slopes and fills. Benches should be level and wide enough to accommodate
compaction and earth moving equipment.
Fill material should be free of organics, vegetative matter, deleterious or foreign material, rocks, and
lumps having a nominal diameter of 6 inches. Native soils may be used as fill material provided
they are compacted as specified. If needed, imported fill material should be approved low expansive
potential soils.
10
Mayer, Arizona
Fill material should be placed in layers, that when compacted, do not exceed 6 inches. Each layer
should then be placed evenly and thoroughly mix during spreading to ensure uniformity of moisture
throughout each layer. Each fill layer should be compacted to specified density and moisture
content.
Compaction equipment should be able to compact the fill to the specified density. Compaction of
each layer should be continuous over its entire area and the compaction equipment should make
sufficient passes to ensure that density has been obtained.
Soil compaction is recommended to the following densities and moisture contents as determined
in accordance with ASTM D-698, AASHTO T-99 or applicable equivalent:
Compaction Specifications for Conventional Foundations and Post-tension
Foundations
For Native and Approved Import Soils
Material
Compaction
Percent Moisture
Below Conventional Interior Floors,
Below Conventional and Post-tension
Foundation Level
90-95%
Optimum to +4
A ProTeX geotechnical engineer’s representative should observe the grading operations to verify
that all cut and fill areas are in accordance with the specifications. This office should be notified
prior to earthwork operations so that appropriate observation and materials testing can be provided.
When work is interrupted by heavy rains, fill operations should not be resumed until the
geotechnical engineer’s representative indicates that the moisture content and density of the
previously placed fill are as specified.
11
Mayer, Arizona
If building pads are altered or portions excavated as a part of construction activities, fill
soils should be compacted as specified. Should this be the case, a representative of ProTeX
should evaluate the pads for further recommendations.
6.0 CLOSURE
6.1 Limitations
The recommendations contained in this report are based on the assumption that the subsurface
conditions do not deviate appreciably from those disclosed by the test holes. Should unusual
material or conditions be encountered during construction, the ProTeX geotechnical engineer should
be notified to make supplemental recommendations should this be required? This report is issued
with the understanding that it is the responsibility of the owner to see that its provisions are carried
out or brought to the attention of those concerned.
The scope of services for this project does not include any environmental assessment of the site
or identification of contaminated or hazardous materials or conditions.
The findings of this report are considered valid as of the present date. However, changes in the
conditions of the site can occur with the passage of time, whether due to natural events or to human
activities on this or adjacent sites. In addition, changes in applicable or appropriate codes and
standards may occur, whether they result from legislation or the broadening of knowledge.
Accordingly, this report may become invalidated wholly or partially by changes outside our control.
Therefore, this report is subject to review and revision as changed conditions are identified.
6.2 Recommended Additional Services
The recommendations provided in this report are based on the assumption that a testing plan will
be implemented with an adequate schedule of testing to ensure that the construction process
12
Mayer, Arizona
meets the recommendations/specifications presented in this report. The testing and observation
should be performed under the direction of the ProTeX Geotechnical Engineer/representative
and should include, but not necessarily be limited to the following:
1. Observe and document that the existing surface and subsurface structures, vegetation and
abandoned utilities are removed from the site as required in the earthwork section.
2. Approve and document that fill material used as engineered fill in building and pavement
areas meets the specifications.
3. After clearing the site; monitor the over excavation, scarification and removal of any
soft/loose conditions down to firm native soils.
4. Monitor and test placement of fill soils in building and pavement locations to verify and
document conformance with project specifications.
13
Appendix A
#200
#140
#100
#60
#40
#30
#20
#10
#4
3/8 in.
½ in.
¾ in.
1 in.
1½ in.
2 in.
3 in.
6 in.
Particle Size Distribution Report
100
90
80
PERCENT FINER
70
60
50
40
30
20
10
0
100
10
1
0.1
0.01
0.001
GRAIN SIZE - mm.
% Gravel
Coarse
Fine
% +3"
0.0
19.9
Coarse
33.7
11.7
SIEVE
PERCENT
SPEC.*
PASS?
SIZE
FINER
PERCENT
(X=NO)
3"
2 1/2"
2"
1 1/2"
1"
3/4"
1/2"
3/8"
1/4"
#4
#8
#10
#16
#30
#40
#50
#100
#200
0.0304 mm.
0.0197 mm.
0.0117 mm.
0.0084 mm.
0.0060 mm.
0.0030 mm.
0.0013 mm.
100.0
95.0
95.0
95.0
85.8
80.1
70.4
61.1
49.4
46.4
37.3
34.7
27.6
21.8
20.3
19.3
18.0
16.5
11.0
9.8
8.0
7.2
6.2
5.3
4.6
% Sand
Medium
% Fines
Fine
Silt
Clay
3.8
10.7
5.8
14.4
Soil Description
PL= 20
Atterberg Limits
LL= 35
PI= 15
D90= 29.9235
D50= 6.5674
D10= 0.0210
Coefficients
D85= 24.5597
D30= 1.4375
Cu= 439.88
USCS= GC
Classification
AASHTO=
D60= 9.2320
D15= 0.0578
Cc= 10.66
A-2-6(0)
Remarks
* (no specification provided)
Source of Sample: B1
Sample Number: 152234
Depth: 2-4'
Date:
Client: Darwish Khalil
Project: Bensch Ranch-Khalil Residence
Project No:
4368
Figure
#200
#140
#100
#60
#40
#30
#20
#10
#4
3/8 in.
½ in.
¾ in.
1 in.
1½ in.
2 in.
3 in.
6 in.
Particle Size Distribution Report
100
90
80
PERCENT FINER
70
60
50
40
30
20
10
0
100
10
1
0.1
0.01
0.001
GRAIN SIZE - mm.
% Gravel
Coarse
Fine
% +3"
0.0
0.7
Coarse
2.3
19.5
SIEVE
PERCENT
SPEC.*
PASS?
SIZE
FINER
PERCENT
(X=NO)
1 1/2"
1"
3/4"
1/2"
3/8"
1/4"
#4
#8
#10
#16
#30
#40
#50
#100
#200
0.0309 mm.
0.0198 mm.
0.0116 mm.
0.0083 mm.
0.0060 mm.
0.0030 mm.
0.0013 mm.
100.0
99.3
99.3
98.7
98.3
97.6
97.0
84.9
77.5
60.3
48.2
45.5
44.1
42.1
39.1
22.9
21.0
19.2
17.4
14.3
12.0
11.2
% Sand
Medium
% Fines
Fine
Silt
Clay
6.4
26.1
13.0
32.0
Soil Description
Clayey Sand with Gravel, medium-high plasticity, dark brown,
slightly damp
PL= 23
Atterberg Limits
LL= 46
PI= 23
D90= 2.7348
D50= 0.6931
D10=
Coefficients
D85= 2.3648
D30= 0.0466
Cu=
USCS= SC
Classification
AASHTO=
D60= 1.1647
D15= 0.0065
Cc =
A-7-6(4)
Remarks
* (no specification provided)
Source of Sample: B2
Sample Number: 152235
Depth: 0-3'
Date:
Client: Darwish Khalil
Project: Bensch Ranch-Khalil Residence
Project No:
4368
Figure
Sample Test Record
Client:
Project Name:
Project Location:
Material:
Material Source:
X
Expansion Index
Darwish Khalil
Bensch Residence-Khalil Residence
Native
B1 (2-4’)
ASTM D4829
Job #:
Lab #:
Date Received:
Sampled By:
Date Sampled:
Submitted By:
4368
152234
5/5/2015
KR
4/29/2015
DAR
AASHTO
AZ
Unit Weight
Wt. of Sample & Ring:
Tare of Ring:
Wt. of Sample:
K=0.301626
616.0
201.4
414.6
g
g
g
Wet Unit Wt.:
Dry Unit Wt.:
125.1
114.9
lbs/ft3
lbs/ft3
Expansion Index
EI50(% Sat. = 50 ± 1)
X
EImeas(% Sat. = 50 ± 2)
Reading of Apparatus
Moisture Sample
Wet Sample:
Dry Sample:
% Moisture:
115.8
106.1
8.9
g
g
g
D2
0.019
(Final Reading)
D1
0.000
(Final Reading)
0.019
in.
ΔH
Degree of Saturation
S=
EImeas =
(% Moisture)(2.7)(Dry Unit Weight)
(2.7)(62.4) – (Dry Unit Weight)
51.5
Saturation =
X
%
EImeas =
ΔH
I
(1000)
19
Very Low (0-20)
Low (21-50)
Med. (51-90)
High (91-130)
Very High (>130)
Remarks:
EI =
Tested By:
Test Date:
Checked By:
Reviewed By:
19
Sample Test Record
Client:
Project Name:
Project Location:
Material:
Material Source:
X
Expansion Index
Darwish Khalil
Bensch Residence-Khalil Residence
Native
B2 (0-3’)
ASTM D4829
Job #:
Lab #:
Date Received:
Sampled By:
Date Sampled:
Submitted By:
4368
152235
5/5/2015
KR
4/29/2015
DAR
AASHTO
AZ
Unit Weight
Wt. of Sample & Ring:
Tare of Ring:
Wt. of Sample:
K=0.301626
589.1
198.3
390.8
g
g
g
Wet Unit Wt.:
Dry Unit Wt.:
117.9
106.0
lbs/ft3
lbs/ft3
Expansion Index
EI50(% Sat. = 50 ± 1)
X
EImeas(% Sat. = 50 ± 2)
Reading of Apparatus
Moisture Sample
Wet Sample:
Dry Sample:
% Moisture:
117.9
106.0
11.2
g
g
g
D2
0.032
(Final Reading)
D1
0.000
(Final Reading)
0.032
in.
ΔH
Degree of Saturation
S=
EImeas =
(% Moisture)(2.7)(Dry Unit Weight)
(2.7)(62.4) – (Dry Unit Weight)
51.3
Saturation =
%
EImeas =
ΔH
I
(1000)
32
Very Low (0-20)
X
Low (21-50)
Med. (51-90)
High (91-130)
Very High (>130)
Remarks:
EI =
Tested By:
Test Date:
Checked By:
Reviewed By:
32
Soil Analysis Report
Protex The PT Xperts,LLC
1102 W. Southern Ave
Suite #4
Tempe AZ 85282-4588
Project: Bensch Ranch / Khalil Res
Sampler:
Date Received: 5/6/2015
Date Reported: 5/8/2015
PO Number: Bensch Ranch
Lab Number: 913320-01
B1 (2-4')
Sulfate & Chloride
Method
Sulfate, SO4
Chloride, Cl
ARIZ 733
ARIZ 736
Result
10
12
Units
Levels
ppm
ppm
Sulfate 0.0010% ; Chloride 0.0012%
3540 E Corona Ave., Phoenix AZ 85040 602-454-2376 (Phone) 602-454-9243 (Fax)
Page 1 of 1
Appendix B
B2
B1
Legend:
Approximate Test Hole Location
Site Plan
Scale: N.T.S.
Drawn by: KR
Mayer, Arizona
Date:5/8/2015
Appendix C

Geo-Bensch Ranch-Khalil Residence

Transcription

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