TEST SOIL FOR COMPRESSIVE STRENGTH EVALUATION AND TEST METHOD FOR EVALUATING COMPRESSIVE STRENGTH USING TEST SOIL

摘要

PROBLEM TO BE SOLVED: To provide a new test soil capable of appropriately evaluating the compressive strength of a cement based solidifying material using volcanic cohesive soil as an object soil, and a test method for evaluating compressive strength using the test soil.;SOLUTION: The test soil for evaluating the compressive strength of a cement based solidifying material is obtained by mixing a dry clay having a composition of SiO₂ of 47.0-57.0 mass%, Al₂O₃ of 15.0-19.0 mass% and Fe₂O₃ of 3.8-8.2 mass% and having a moisture content of 5% or less and an allophane having a composition of SiO₂ of 33.0-41.0 mass%, Al₂O₃ of 33.0-41.0 mass% and Fe₂O₃ of 1.7-4.3 mass% at a proportion of 90:10-70:30 by a mass ratio. The test method for evaluating the compressive strength of the cement based solidifying material comprises mixing the cement based solidifying material with water to form slurry; and mixing the slurry with the test soil for evaluating the compressive strength of the cement based solidifying material to evaluate the compressive strength.;COPYRIGHT: (C)2016,JPO&INPIT