Shear strength components of concrete under direct shearing

R. C.K. Wong; S. K.Y. Ma; R. H.C. Wong; Kam Tim Chau

doi:10.1016/j.cemconres.2007.02.021

Shear strength components of concrete under direct shearing

R. C.K. Wong, S. K.Y. Ma, R. H.C. Wong, Kam Tim Chau

Research output: Journal article publication › Journal article › Academic research › peer-review

107 Citations (Scopus)

Abstract

Direct shear tests on concrete specimens were conducted to investigate the shearing behaviour of the material under varying normal confining stresses. Test results were analyzed to quantify the mobilization of shear strength components derived from hydrated cement paste-aggregate adhesion, contact friction, shear dilation, and cement-aggregate interlock along the sheared surface under direct shearing. It was found that each component has its unique response in terms of mobilized shear stress and shear displacement. In addition, different modes of failure observed in uniaxial compression, splitting tension, and direct shear tests were identified to delineate the Mohr-Coulomb failure envelope for shear strength of concrete material.

Original language	English
Pages (from-to)	1248-1256
Number of pages	9
Journal	Cement and Concrete Research
Volume	37
Issue number	8
DOIs	https://doi.org/10.1016/j.cemconres.2007.02.021
Publication status	Published - 1 Aug 2007

Keywords

Concrete
Friction
Hydrated cement paste-aggregate bond
Interlock direct shear
Shear dilation

ASJC Scopus subject areas

Building and Construction
General Materials Science

More information

10.1016/j.cemconres.2007.02.021

Cite this

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title = "Shear strength components of concrete under direct shearing",

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AU - Wong, R. C.K.

AU - Ma, S. K.Y.

AU - Wong, R. H.C.

AU - Chau, Kam Tim

PY - 2007/8/1

Y1 - 2007/8/1

N2 - Direct shear tests on concrete specimens were conducted to investigate the shearing behaviour of the material under varying normal confining stresses. Test results were analyzed to quantify the mobilization of shear strength components derived from hydrated cement paste-aggregate adhesion, contact friction, shear dilation, and cement-aggregate interlock along the sheared surface under direct shearing. It was found that each component has its unique response in terms of mobilized shear stress and shear displacement. In addition, different modes of failure observed in uniaxial compression, splitting tension, and direct shear tests were identified to delineate the Mohr-Coulomb failure envelope for shear strength of concrete material.

AB - Direct shear tests on concrete specimens were conducted to investigate the shearing behaviour of the material under varying normal confining stresses. Test results were analyzed to quantify the mobilization of shear strength components derived from hydrated cement paste-aggregate adhesion, contact friction, shear dilation, and cement-aggregate interlock along the sheared surface under direct shearing. It was found that each component has its unique response in terms of mobilized shear stress and shear displacement. In addition, different modes of failure observed in uniaxial compression, splitting tension, and direct shear tests were identified to delineate the Mohr-Coulomb failure envelope for shear strength of concrete material.

KW - Concrete

KW - Friction

KW - Hydrated cement paste-aggregate bond

KW - Interlock direct shear

KW - Shear dilation

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DO - 10.1016/j.cemconres.2007.02.021

M3 - Journal article

SN - 0008-8846

VL - 37

SP - 1248

EP - 1256

JO - Cement and Concrete Research

JF - Cement and Concrete Research

IS - 8

ER -

Shear strength components of concrete under direct shearing

Abstract

Keywords

ASJC Scopus subject areas

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