Cement stabilised rammed earth. Part B: compressive strength and stress-strain characteristics

Reddy, Venkatarama BV and Kumar, Prasanna P (2011) Cement stabilised rammed earth. Part B: compressive strength and stress-strain characteristics. In: Materials and Structures / Materiaux et Constructions, 44 (3). pp. 695-707.

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Abstract

Strength and behaviour of cement stabilised rammed earth (CSRE) is a scantily explored area. The present study is focused on the strength and elastic properties of CSRE. Characteristics of CSRE are influenced by soil composition, density of rammed earth, cement and moisture content. The study is focused on examining (a) role of clay content of the soil on strength of CSRE and arriving at optimum clay fraction of the soil mix, (b) influence of moisture content, cement content and density on strength and (c) stress-strain relationships and elastic properties for CSRE. Major conclusions are (a) there is considerable difference between dry and wet compressive strength of CSRE and the wet to dry strength ratio depends upon the clay fraction of soil mix and cement content, (b) optimum clay fraction yielding maximum compressive strength for CSRE is about 16%, (c) strength of CSRE is highly sensitive to density and for a 20% increase in density the strength increases by 300-500% and (d) in dry state the ultimate strain at failure for CSRE is as high as 1.5%, which is unusual for brittle materials.

Item Type:	Journal Article
Publication:	Materials and Structures / Materiaux et Constructions
Publisher:	Springer
Additional Information:	Copyright of this article belongs to Springer.
Keywords:	Compressive strength; Stress-strain relations; Rammed earth; Stabilised earth; Soil-cement
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	21 Mar 2011 09:48
Last Modified:	25 Mar 2011 11:43
URI:	http://eprints.iisc.ac.in/id/eprint/35998

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