ENGINEERING METHOD FOR IMPROVING SOIL AND SOIL-IMPROVING MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide an engineering method for improving soil and a soil-improving material, in which water permeability of alkali soil is improved and alkali soil such as soil generated by construction can be improved into greening soil in the short term in a construction site. SOLUTION: The engineering method for improving soil comprises desalting an alkaline soil containing sodium chloride having high concentration to a considerable extent in which growth of plants is difficult and containing colloid particles by passing water into the soil and reutilizing the soil as greening soil. In the soil-improving method, the soil is mixed with a neutralizing agent containing a phosphoric acid-feeding source and a calcium-feeding source and water passage treatment is applied to the mixture. COPYRIGHT: (C)2006,JPO&NCIPI