Standard Method of Test for Moisture–Density Relations of Soil–Cement Mixtures

Abstract

These methods of test are intended for determining the relation between moisture content and density of soil–cement mixtures when compacted before cement hydration as prescribed.

A 944-cm3 (1/30-ft3) mold and a 2.5-kg (5.5-lb) rammer dropped from a height of 305 mm (12 in.) are used and two methods, depending on soil gradation, are covered, as follows:

Method A—Soil material passing a 4.75-mm (No. 4) sieve.

This method shall be used when 100 percent of the soil sample passes the 4.75-mm (No. 4) sieve; or

Method B—Soil material passing a 19.0-mm (3/4-in.) sieve.

This method shall be used when part of the soil sample is retained on the 4.75-mm (No. 4) sieve.

This test method applies to soil–cement mixtures that have 30 percent or less retained on the 19.0-mm (3/4-in.) sieve, when Method B is used.

The material retained on the 19.0 mm (3/4-in.) sieve shall be defined as oversized particles (coarse particles).

The following applies to all specified limits in this standard: For the purposes of determining conformance with these specifications, an observed value or a calculated value shall be rounded off “to the nearest unit” in the last right-hand place of figures used in expressing the limiting value, in accordance with ASTM E29