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rj .I .I ~l .I .I .~ ^I .I .~ .~ .I .I 7 LABORATORY TESTS SIGNIFICANCE AND PURPOSE TEST SIGNIFICANCE PURPOSE Ca/ifornia Used to evaluate the potential strength of subgrade soil, subbase, Pavement Bearing and base course material, including recycled materials for use in Thickness Ratio road and airfield pavements. Design Conso/idat/on Used to develop an estimate of both the rate and amount of both Foundation differential and total settlement of a structure. Design Direct Used to determine the consolidated drained shear strength of soil Bearing Capacity, Shear or rock. Foundation Design & Slope Stability Dry Used to determine the in-place density of natural, inorganic, fine- Index Property Density grained soils. Soil Behavior Expansion Used to measure the expansive potential of fine-grained soil and to Foundation & Slab provide a basis for swell potential classification. Design Gradation Used for the quantitative determination of the distribution of Soil particle sizes in soil. Classification Liquid & Used as an integral part of engineering classification systems to Soil P/astic Limit, characterize the tine-grained fraction of soils, and to specify the Classification P/asticity /ndex fine-grained fraction of construction materials. Oxidation- Used to determine the tendency of the soil to donate or accept Corrosion Reduction electrons through a change of the oxidation state within the soil. potential Potential Permeabi/ity Used to determine the capacity of soil or rock to conduct a liquid Groundwater or gas. Flow Analysis Py Used to determine the degree of acidity or alkalinity of a soil. Corrosion Potential Resistivity Used to indicate the relative ability of a soil medium to carry Corrosion electrical currents. Potential Used to evaluate the potential strength of subgrade soil, subbase, Pavement R-Va/ue and base course material, including recycled materials for use in Thickness road and airfield pavements. Design So/ub/e Used to determine the quantitative amount of soluble sulfates Corrosion Su/phate within a soil mass. Potential Su/fide Content Used to determine the quantitative amounts of sulfides within a Corrosion soil mass. Potential UnconFned To obtain the approximate compressive strength of soils that B~:aring Capacity Compression Possess sufficient cohesion to permit testing in the unconfined Analysis for state. Foundations Water Used to determine the quantitative amount of water in a soil mass. Index Property Content Soil Behavior Empire Laboratoril~s, Inc. A Division of The Terracon Companies. Inc.