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Lab Services: Soil testing

Lab Services: Soil testing

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Test Method Title

Moisture-Density Relations of Soil-Cement Mixtures

Reference Number

AASHTO T 134

Material

Soil-Cement

Test Property

Maximum dry density, optimum moisture content

Description of Test

A soil-cement mixture is compacted at selected water contents in three equal layers into a mold of given dimensions, with each layer compacted by 25 blows of a 5.5 lb rammer dropped from a distance of 12-in. The resulting dry unit weight is determined. The procedure is repeated for a sufficient number of water contents to establish a relationship between the dry unit weight and the water content for the soil-cement mixture. This data, when plotted, represent a curvilinear relationship known as the compaction curve. The values of optimum water content and modified maximum dry unit weight are determined from the compaction curve.

Preferred Test Sample Size

Number of Test Specimens

5

Test Specimen Size

2300-5600 grams

Keywords

maximum density, optimum moisture content, compaction characteristics, treatability, solidification, bench-scale

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