HomeMy WebLinkAboutSUB199900257 Calculations 2004-09-14 John Y. Gooch, P.E. 4y4040Ciz Steve Gooch, C.P.G./A.O.S.E.
1'472g
Phone (434) 293-7449 eStll2 jyiC Fax (434) 293-5137
1821 Broadway Street Charlottesville, Virginia 22902 wwwgooch-eng.com
September 14, 2004
Mr. Steve Melton
C.W. Hurt, Inc.
P.O. Box 8147
Charlottesville, Virginia 22906
Re: CBR Test
Westview
Buffalo Hills Road— Sta 11+50
JOB CODE: 2102
Dear Steve:
Enclosed are the results of one (1) CBR test we ran on a soil sample from the referenced site.
We ran duplicate molds on the sample and averaged the results to obtain the CBR value. We
have also enclosed the moisture-density (compaction) curve and the sieve analysis results.
Sampling was done is the field by personnel from Gooch Engineering and Testing, Inc.
We hope this is the information you need. If you have any questions,please let us know.
Sincerely,
Gooch Engineering and Testing, Inc.
Steve Gooch
Encl.
ooch CBR TEST REPORT
1821 Broadway St.
n g i n e e r i n g Charlottesville,VA 22902
Phone 434-293-7449 •
es t i n g, I n C. FAX 434-293-5137 Date: 9/9/04
By: JFB
Project: Westview Job No.: 2102
Sample: Locat.: Buffalo Hills Road -Sta 11+50
Description: Brown mica silty sand
AASHO T-99 X Max. Dry Dens. 99.2 pcf., Opt. Moisture 21.9 %
AASHO T-180
Cylinder No. 7 Cylinder Ht. 6 in. Cylinder Vol. 0.0982 cu.ft. Cylinder Wt. 9.04
Hammer Wt. 5.5 lb No. Lifts 5 Blows/lift 45
DENSITY AND MOISTURE DATA
As Compacted After Soaking
Can No. A9 A10 A13 A14
Wt. wet sample+can, gm. 68.58 68.79 68.73 68.81
Wt. dry sample + can, gm. 60.1 60.2 59.38 59.68
Wt. water, gm. 8.48 8.59 9.35 9.13
Wt. can, gm. 21.22 20.82 21.39 21.49 _
Wt. dry soil, gm. 38.88 39.38 37.99 38.19
Percent moisture 21.8 21.8 21.8 24.6 24.3 23.9
Wt. mold +wet soil, lb. 20.74 21.21
Wt. wet soil, lb. 11.70 12.17
Wet density of soil, pcf. 119.1 123.2
Dry density of soil, pcf. 97.8 99.2
Percent max. lab density 98.6 100.0
PENETRATION DATA SWELL DATA
Penetration Load
in. lb. Dial reading before soaking 0.113 in
0.000 0 Dial reading after soaking 0.148 in
0.025 50 Swell 0.035 in
0.050 75 Percent Swell 0.58 %
0.075 125 Volume after soaking 0.0988 cu. ft.
0.100 200
0.150 350
0.200 500 CBR= 100(500-200/3000)= 10.0
0.300 675
0.400 825
0.500 950 AVERAGE SOAKED CBR VALUE-10.0+10.8/2 = 10.4
•
C00 C h CBR TEST REPORT
i.ci.71821 Broadway St.
n g i n e e r i n g Charlottesville,VA 22902
Phone 434-293-7449
e s t i n g, In C. FAX 434-293-5137 Date: 9/9/04
By: JFB
Project: Westview Job No.: 2102
Sample: Locat.: Buffalo Hills Road-Sta 11+50
Description: Brown mica silty sand
AASHO T-99 X Max. Dry Dens. 99.2 pcf., Opt. Moisture 21.9 %
AASHO T-180
Cylinder No. 8 Cylinder Ht. 6 in. Cylinder Vol. 0.0982 cu.ft. Cylinder Wt. 9.06
Hammer Wt. 5.5 lb No. Lifts 5 Blows/lift 45
DENSITY AND MOISTURE DATA
As Compacted After Soaking
Can No. A9 A10 A15 A16
Wt. wet sample+ can, gm. 68.58 68.79 68.68 68.66
Wt. dry sample +can, gm. 60.1 60.2 59.45 59.72
Wt. water, gm. 8.48 8.59 9.23 8.94
Wt. can, gm. 21.22 20.82 21.48 21.28
Wt. dry soil, gm. 38.88 39.38 37.97 38.44
Percent moisture 21.8 21.8 21.8 24.3 23.8 23.3
Wt. mold +wet soil, lb. 20.86 21.21
Wt. wet soil, lb. 11.80 12.15
Wet density of soil, pcf. 120.2 123.2
Dry density of soil, pcf. 98.6 99.5
Percent max. lab density 99.4 100.3
PENETRATION DATA SWELL DATA
Penetration Load
in. lb. Dial reading before soaking 0.143 in
0.000 0 Dial reading after soaking 0.169 in
0.025 25 Swell 0.026 in
0.050 75 Percent Swell 0.43
0.075 150 Volume after soaking 0.0986 cu. ft.
0.100 250
0.150 400
0.200 550 CBR= 100(400-75/3000) = 10.8
0.300 775
0.400 925
0.500 1050
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Eid/SEll AIISNITI ANCI
SIEVE ANALYSIS REPORT
Westview
Buffalo Hills Road
Sta 11+50
Sieve Cumulative%Passing
4 99.4
10 97.7
40 70.3
200 33.4
ATTERBERG LIMITS
Liquid Limit 44.7
Plastic Limit 33.3
Plasticity Index 11.4
John Y. Gooch, P.E. OOCI'L Steve Gooch, C.P.G./A.O.S.E.
l'LglT'LeeYtYLg
Phone (434) 293-7449 eSttJ lg, Z7 Zc. Fax (434) 293-5137
1821 Broadway Street Charlottesville, Virginia 22902 www.gooch-eng.com
September 28, 2004
Mr. Steve Melton
C. W. Hurt Contractors
P. O. Box 8147
Charlottesville, VA 22906
Subject: Field Density Test Results
Westview
Albemarle County, Virginia
JOB CODE: 2102
Dear Stye:
Shown in the enclosed table are the results of field density test numbers 1 through 4 our firm ran
on compacted fill at the referenced site. All tests either passed the required compaction of 95%
maximum dry density according to ASTM D-698 or, where tests were low, the areas were
rerolled and retested until the requirements were met.
We trust this is the information you need. If you have any questions,please let us know.
Sincerely,
Gooch.Engineering&Testing, Inc.
%.9,E.
John Y. Gooch,P.E.
Enclosures
0
. . 0 0 C h 1821 Broadway Street Charlottesville, VA 22902
Phone: 434-293-7449 FAX 434-293-5137
ngineering
FIELD DENSITY TEST RESULTS
e s t i n g, I n C . FOR: Westview-Buffalo Hills Road
JOB CODE: 2102
Date Test# Lift/Elev. Dry Density(pcf) %Compaction %Wet or Dry of Opt. Remarks
8/30/2004 1 1 105.3 101.3 0.7 dry Sta 10+50
8/30/2004 2 1 104.9 100.9 0.1 dry Sta 11+50
9/1/2004 3 subgrade 92.9 100.1 0.6 dry Sta10+75
9/1/2004 4 subgrade 96.7 100.7 0.8 dry Sta 11+50
J'ohnwY. Gooch, P.E. OOCAI Steve Gooch, C.P.G./A.O.S.E.
riegr 7712g
Phone (434) 293-7449 es t1T2 � I12C_ Fax (434) 293-5137
1821 Broadway Street Charlottesville, Virginia 22902 wwwgooch-eng.com
September 28, 2004
Mr. Steve Melton
C. W. Hurt Contractors
P. O. Box 8147
Charlottesville,VA 22906
Subject: Field Density Test Results
Westview
Albemarle County, Virginia
JOB CODE: 2102
Dear Stye:
Shown in the enclosed table are the results of field density test numbers 1 through 4 our firm ran
on compacted fill at the referenced site. All tests either passed the required compaction of 95%
maximum dry density according to ASTM D-698 or, where tests were low, the areas were
rerolled and retested until the requirements were met.
We trust this is the information you need. If you have any questions,please let us know.
Sincerely,
Gooch.Engineering& Testing, Inc.
wge,,John Y. Gooch, P.E.
Enclosures
t •
r
,. .r
• o•0 ch 1821 Broadway Street Charlottesville, VA 22902
Phone: 434-293-7449 FAX 434-293-5137
ngineering
FIELD DENSITY TEST RESULTS
e s t i n g , In C . FOR: Westview-Buffalo Hills Road
JOB CODE: 2102
Date Test# Lift/Elev. Dry Density(pcf) %Compaction %Wet or Dry of Opt. Remarks
8/30/2004 1 1 105.3 101.3 0.7 dry Sta 10+50
8/30/2004 2 1 104.9 100.9 0.1 dry Sta 11+50
9/1/2004 3 subgrade 92.9 100.1 0.6 dry Sta10+75
9/1/2004 4 subgrade 96.7 100.7 0.8 dry Sta 11+50