HomeMy WebLinkAboutCDP 02-56; WALTERS RESIDENCE; COMPACTION TESTING; 2003-11-14- L . ell
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Field Testing. -
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1 Field density tests were performed usmg the nuclear densometer method (ASTM
D-2822) and the sand cone method (ASTM D-1556-90) The test results for the subject
site are summanzed in Table I The estimated locations of the field density tests are
shown on the Compaction Test, Plates .j.
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2 Field density tests were takenit penodic intervals and random locations to check
the compactive effort provided by the contractor. Where test results indicted less than
90 percent relative compaction of the laboratory standard, the .contractor was notified and
the area was reworked until retesting indicated a minimum relative compaction of 90
percent. Based on the grading operations observed, the test results herein are considered -
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representative of the compacted fill
* 3 Visual classification of the soils in the field was the basis for determining which
maximum density value to use for a given density, test
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Laboratory Testing
The following test procedure was performed on soil material, from the site during
S construction. Results of the tests are presented in Appendix A. ; - '• .•
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Laboratory Maximuni Dry Density
Laboratory maximum dry density testing of representative onsite soils, were performed in
general accordance with ASTM D1557-91. - - •
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Expansion Index Test -
- Expansion Index Test on the near surface soils was performed in accordance with ASTM
D4829-95.-
Expansion Index Test
Expansion test was performed in accordance with Cal-Trans Test No 417
RECOMMENDATIONS
Recommendations presented in the referenced reports should be implemented. This
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office, prior to placing steel or concrete, should observe footing trenches. Additional, fill
S placed and retaining walls backfill should be observed, tested and verified by - •
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• geoteôhnical engineers. S - •
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TEST
-NO. DATE ,'
DEPTH
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BELOW'CONTENT.
S.G.PCF
MOISTURE
0 /0
DRY
DENSITY COMPACTION NOTE
1 11/11/03 3' 120 1114 - 90 Sc
2 11/11/03 3' 120 1152 93 SC
13 11/12/03 2' 120 1118 91 Sc
4 11/12/03 1' 120 1118 91 Sc
5 11/13/03 1' 120 1118 91 VNU
6 11/13/03 SURFACE 124 1139 92 NU
7 11/1303 3' 120 1143 93 NT)
8 11/13/03 1' 120 1156 94 Sc
9 11/14/03 2' 120 1112 90 Sc
-10 11/14/03 2' 120 112.4- 91 '-'NT)'-
11 11/17/03 2' 120 1187 96 SC
12 11/17/03 SURFACE 120 1112 90 SC