Lab Services: Soil testing

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Test Method Title

Standard Method of Test for Moisture-Density Relations of Soils Using a 2.5-kg (5.5-lb) Rammer and a 305-mm (12-in.) Drop

Reference Number

AASHTO T 99

Material

Soil

Test Property

Maximum dry density, optimum moisture content

Description of Test

This method of test is intended for determining the relationship between the moisture content and density of soils when compacted in a given mold of a given size with a 2.5-kg (5.5-lb) rammer dropped from a height of 305 mm (12 in. ).

Preferred Test Sample Size

5 gallon bucket

Number of Test Specimens

5

Test Specimen Size

2300-5600 grams

Keywords

Compaction, density, modified effort, modified proctor test, moisture-density curves, soil compaction