Effect of moisture content on the mechanical characteristics of rammed earth

被引：206

作者：

Bui, Quoc-Bao ^{[1
]}

Morel, Jean-Claude ^{[2
]}

Hans, Stephane ^{[2
]}

Walker, Peter ^{[3
]}

机构：

[1] Univ Savoie, LOCIE, UMR5271, F-73376 Le Bourget Du Lac, France

[2] Univ Lyon, ENTPE, LTDS, UMR 5513, F-69120 Vaulx En Velin, France

[3] Univ Bath, BRE Ctr Innovat Construct Mat, Dept Architecture & Civil Engn, Bath BA2 7AY, Avon, England

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2014年 / 54卷

关键词：

Rammed earth; Cohesion; Suction; Compressive strength; Young modulus; Poisson's ratio; STRENGTH;

D O I：

10.1016/j.conbuildmat.2013.12.067

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this paper, influence of moisture content on the mechanical characteristics of rammed-earth has been studied. Samples from different soils (sandy, clayey, stabilised) were manufactured and tested in unconfined compression at several moisture contents. Compressive strength, elastic modulus and Poisson's ratio were determined. A simplified method to measure the suction within rammed earth samples has been developed and validated. The variation of mechanical characteristics related to moisture content and suction are presented. This paper shows that a slight increase in the moisture content of dry rammed-earth is not followed by sudden drop in wall strength. Qualitative explanations at the nano-scale are presented. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：163 / 169

页数：7

共 21 条

[1] Hygrothermal analysis of a stabilised rammed earth test building in the UK [J].

Allinson, David ;

Hall, Matthew .

ENERGY AND BUILDINGS, 2010, 42 (06) :845-852

[2]

[Anonymous], 1992, P11300 NF AFNOR

[3]

[Anonymous], P94068 NF AFNOR

[4] An earth block with a compressive strength higher than 45 MPa! [J].

Aubert, J. E. ;

Fabbri, A. ;

Morel, J. C. ;

Maillard, P. .

CONSTRUCTION AND BUILDING MATERIALS, 2013, 47 :366-369

[5] Durability of rammed earth walls exposed for 20 years to natural weathering [J].

Bui, Q. B. ;

Morel, J. C. ;

Reddy, B. V. Venkatarama ;

Ghayad, W. .

BUILDING AND ENVIRONMENT, 2009, 44 (05) :912-919

[6] Compression behaviour of non-industrial materials in civil engineering by three scale experiments: the case of rammed earth [J].

Bui, Quoc-Bao ;

Morel, Jean-Claude ;

Hans, Stephane ;

Meunier, Nicolas .

MATERIALS AND STRUCTURES, 2009, 42 (08) :1101-1116

[7]

Burroughs V S, 2001, THESIS U NEW S WALES

[8]

Chapman LD, 1913, PHILOS MAG 6, V25

[9] Clay mineral characterization through the methylene blue test: comparison with other experimental techniques and applications of the method [J].

Chiappone, A ;

Marello, S ;

Scavia, C ;

Setti, M .

CANADIAN GEOTECHNICAL JOURNAL, 2004, 41 (06) :1168-1178

[10]

Delage P., 2002, Proceedings of the 3rd International Conference on Unsaturated Soils. Recife, Brazil, P973

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