Ability of cement improved soil mixed with rice husk ash as greening material

Abstract

Rice cropping produces a lot of waste material such as rice husks. New ways of the utilizing of rice husks are in urgent need. In this study, the ability of cement improved soil mixed with rice husk ash as greening material was evaluated by four kinds of examination: compression test, X-ray CT, permeability test, and water retention test. As a result, replacing 60 % of the cement with rice husk ash had a positive effect on pozzolanic reaction. And, the cement improved soil (replacement rate: 60 %) passed target values of porosity and permeability.