HomeMy WebLinkAbout; La Costa Greens Lot 8; Soils Report; 1973-10-05BENTON ENGINEERING, INC.
APPLIED BO,L MECHANICS -. FOUND*TION*
6717 CONVOY COURT BAN DIE00. C*LIFORNI* 82111
-
-
-
-
-
-
PHlLlP “ENK(INO BENTON PIEPlDENT ClVlL LNGINECFC October 5, 1973 TELEPIlDHE ,714, 56%!855
Cal-Pacific Properties
1680 Costa Del Mar Road
Ranch0 La Costa
Carlsbad, Colifomia 92008
Attention: Mr. Robert Miller
Subject: Project No. 72-lo-25D
Results of Field Density Tests
Taken in Compacted Filled Ground
-a
Gentlemen:
This is to report the results of three field density tests taken in the fill soils at finished grade on the
northerly portion of Lot 8, La Costa Greens, Carlsbad, California.
The tests were taken on October 1, 1973, and the final results of the tests are presented as follows:
Depth
of Test
Below Maximum
Finished Field DV DV
Test Grade Moisture Density Density Percent
No. in Feet % dry wt Ib/cu ft Ib/cu ft Compaction
1 0.1-0.5 17.5 104.4 115.8 90.3
2 0.1-0.5 13.7 112.3 124.2 90.5
3 0.1-0.5 14.0 110.2 120.0 * 91.8
* Tests Contained Both Soil Types Described On The Next Page
LABORATORY TEST RESULTS
The maximum dry densities and optimum moisture contents of the major fill materials as determlned
by the A.S.T.M. D 1557-66T method, that uses 25 blows of a 10 Found rammer falling from a
height of 18 inches on each of 5 layers In a 4 inch dtameter l/30 cubic foot compaction cylinder,
are presented on the next pcge,
SlOlO
.17.75
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
_~., ~..
Project No. R-lo-25D
La Costa Greens
-2-
LABORATORY TEST RESULTS, (CONT.)
October 5, 1973
Soil Description
Gray fine sandy clay
Light greenkh-gray clayey fine sand with claystone chunks
Respectfully submitted,
Maxlmum Optimum Mols-
Dry Density ture Content
Ib/cu ft %dtywt
115;8 9:8
124.2 11.2
BENTON ENGINEERING, INC.
BYZ@%?&
R. C. Remer
/ /’ 7~
Reviewed by ( Lf&. ,( ,, ( __ -
Philip H. Bed&, Civil Engineer
Distr: (3) Addressee
(1) City of Carlsbad
Attention: Engineering Department
BENTON ENGINEERING. INC.
RCR/PHB/mpm