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i <br /> KLEINEELDER <br /> File No. 20-2520-02 <br /> February 1, 1990 <br /> i <br /> Foothill Engineering <br /> 12793 Paddy Creek <br /> Lodi, CA 95240 <br /> Attention: Ery Rifenburg <br /> j <br /> Subject: LABORATORY TESTING OF SAND TREATED <br /> WITH VARIOUS TYPES OF ADDITIVES <br /> Gentlemen: <br /> As requested, we performed laboratory tests toy determine the relative stability of samples sof <br /> sand which were treated with various types of additives. The sand originated from the Turner i °3 <br /> Winery project and was indicated to be contaminated with a heavy bunker oil. <br /> Additives which were used to stabilize soil included cement, quicklime, and asphaltic oil <br /> emulsion named SS-1 H. Samples were treated with various percentages and combinations of <br /> additives prior to stabilometer testing. The samples were allowed to cure and dry for,varying <br /> periods of time prior to testing. <br /> In some cases, stabilometer tests were performed up to three times on the- same test <br /> specimens. Individual tests were performed after additional periods of curing and/or specimen <br /> conditioning. Stabilometer tests were repeated on the same specimens labeled as 4, 7,111, 12,- <br /> 13, and 14. <br /> 1 <br /> it <br /> Table I is a summary of the stabilometer tests. You will find that the stabilometer test result's <br /> vary significantly depending upon the length of cure period. <br /> After reviewing the test results, you will find the stabilometer value to be lower as the percentage <br /> of SS-1 H is increased. It is our opinion that they drop off in the stabilometer values is:a short <br /> term condition, and that long term stabilometer value of the material with the higher oil content <br /> would be significantly higher. <br /> li <br /> KLEINFELDER 2825 East Myrtle Street, Stockton, CA 95205 (209) 948-1345 <br /> it <br />