An Investigation of the Cement Requirements for Soil Cement Compacted to Modified Maximum Density.

The purpose of this investigation was to investigate the possibilities of developing a laboratory test for soil cement using specimens compared to CE no. 100 modified maximum densities. Standard ASTM freeze-thaw, wet-dry and compressive strength tests for soil cement were conducted on specimens compacted to 100 percent and 96 percent CE modified maximum densities at modified optimum moisture content and specimens compacted to standard maximum densities at standard optimum moisture contents in order to correlate the durability and compressive strengths of the specimens. The group of specimens compacted to 96 percent modified CE densities were incorporated to determine what would happen if 100 percent modified densities were aimed at and some density less than this was obtained. Length change and pulse velocity were measured during freeze-thaw and wet-dry testing, and pulse velocities were measured on the compressive strength specimens. This investigation was conducted for two types of soil, a clayey sand (-2-4) and a silty clay (A-7-6).