Study of Plastic Soil Cement for Flooring Application

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Date

2015-08

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Addis Ababa University

Abstract

Earth as a building material is available everywhere. In developing countries, earth construction is economically the most efficient means to house the greatest number of people with the least demand of resources. This research is intended to provide detailed technical information on the production of soil stabilized with cement as a flooring material. These include information on suitable soil type, percentage of cement to soil or other ingredients and investigation on its mechanical properties. Review of related literatures show that soil types and proportions between soil and cement will affect the strength and other properties of the material. The mix proportion is directly related to the type of soil used which will also be a critical point for the thesis. Using Ordinary Portland Cement manufactured in Ethiopia, soil brought from Kara, North of Addis Ababa city, natural and manufactured sand two mix series were prepared containing the above ingredients. The properties of these mixes have then been assessed in the laboratory on the hardened soil cement mix. The results of the hardened soil cement paste have shown that with an increase in soil to sand ratio, there is a gradual decrease in compressive strength .Similarly, the increase in amount of cement results in increase in compressive strength and in water absorption. It was found that by using 20% cement content and 50% soil from the total volume the soil product was shown to have a compressive strength of 16 MPa.This shows that by adding soil with half volume a reasonably quality flooring material can be produced. Key words: Compressive Strength, Soil Cement, Soil stabilization, Water Absorption.

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Keywords

Compressive Strength, Soil Cement, Soil Stabilization

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