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

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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.

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Authors and Affiliations

  1. Department of Civil Engineering, Indian Institute of Science, Bangalore, 560 012, India

    B. V. Venkatarama Reddy

  2. Department of Civil Engineering, BMS College of Engineering, Bangalore, 560 019, India

    P. Prasanna Kumar

Authors
  1. B. V. Venkatarama Reddy
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  2. P. Prasanna Kumar
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Correspondence to B. V. Venkatarama Reddy.

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Venkatarama Reddy, B.V., Prasanna Kumar, P. Cement stabilised rammed earth. Part B: compressive strength and stress–strain characteristics. Mater Struct 44, 695–707 (2011). https://doi.org/10.1617/s11527-010-9659-8

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  • DOI: https://doi.org/10.1617/s11527-010-9659-8

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