HomeMy WebLinkAboutCT 00-02; CALAVERA HILLS PHASE II; REPORT OF MATERIALS TESTING; 2013-11-07C-r, 0 0 - 612- 1
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Geotechnical . Geologic. Environmental
5741 Palmer Way . Carlsbad, California 92008 . (760)438-3155 • FAX(760)931-0915
REPORT OF MATERIALS TESTING
DATE: 11-07-03 W.O. 3459-E-SC
TO: Calavera Hills II, LLC, attn: Mr. Tom LeMarca
FROM: Robert Crisman, CEG 1934, David W. Skelly, RCE 47857
SUBJECT: Aggregate Base Prod uctionlQuality Control, Calavera Hills II, Carlsbad, Ca.
Aggregate base materials are currently being produced from a crusher plant located northwest of
the intersection of College Avenue and Cannon Road, in the City of Carlsbad, California. Source
materials used to produce the aggregate are being generated from ongoing excavation operations
completed for the Calavera Hills II development. The plant has been configured to produce
aggregate base material conforming to specifications for Caltrans Class 2 Aggregate Base.
Representative samples of aggregate base material produced at the plant have been tested for
compliance with materials specifications presented in Chapter 26 of the Caltrans Standard
Specifications for Class 2 aggregate base. Test results are summarized as follows:
Durability Index (California Test Method 229) = 66 (in spec., 35 minimum)
Sand Equivalent = (California Test Method 217) = in spec. (see attached sheets)
Resistance Value (California Test Method 301) = 83 (in spec., 78 minimum)
Gradation (California Test Method 202) = in spec. (see attached sheets)
Based on our review of the laboratory testing results obtained to date, the materials produced
appear to meet the minimum requirements for Caltrans Class 2 aggregate base. Periodic testing
of aggregate will occur throughout production, in order to verify and maintain aggregate quality.
Should you have any questions regarding this memorandum, please contact this office.
Respectfully submitted,
GeoSoils, Inc.
Attachments: Sand Equivalent and Grain Size D
SIEVE SIZES 3/4 4 30 200
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GRAIN SIZE IN MILLIMETERS
ECOBBLES
GRAVEL I SAND TI R SILT CLAY
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coarse Ifine 1coarse I medium fine
Note: Shaded area represents specifications for Cal Trans Class II Base
19-mm maximum particle size, operating range
Sample Depth/El. S. E. Percent sing _______ _Pas
1" 3/4" 1 #4 # 30 #200
• AB-7 11/5 0.0 51 100 99.6 p442 - 14.8 6.4
• A13-8 11/5 0.0 J 32 100 99.3 46.2 13.3 5.2
Specifications j_25 100 90-100 35-60 j 10-30 2-9
GeoSoils, Inc.
5741 Palmer Way
GeoSoils, Inc. Carlsbad, CA 92008
Telephone: (760) 438-3155
Fax: (760) 931-0915
GRAIN SIZE DISTRIBUTION
Project: MCMILLIN
Number: 3459-E-SC
Date: November 2003 Plate: C - 1
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GRAVEL SAND I SILT OR CLAY BBLES coarse fine coarse medium fine
Sample Depth/El. S. E. Percent Passing
3/4" #4 # 30 # 200 I
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0.0 100.0 45.0 14.0 5.6 . L AB-1011/6 0.0 33 100.0 40.7 12.2 5.0
Specifications 25 100 90-100 35-60 10-30 2-9