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Experimental Study on Flexural Testing of Compacted Soil Beams

DSpace at IIT Bombay

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Title Experimental Study on Flexural Testing of Compacted Soil Beams
 
Creator VISWANADHAM, BVS
JHA, BK
PAWAR, SN
 
Subject lightly cemented sand
tensile-strength
clay liners
settlement
behavior
waste
 
Description This paper presents an experimental study on flexural testing of three different types of soils molded at three different water contents and two different compaction energies. For this purpose, a custom designed simple beam test setup was developed in the laboratory for inducing the controlled pure bending to the soil under evaluation together with a charged coupled device video camera mounted on to a moving triaxial base plate. Based on the analysis and interpretation of bending moment (BM)-curvature (kappa) relationships of tested soil beams, effects of soil type, molding water content, and compaction energy on the flexural behavior could be obtained. For the varied molding water contents and for the range of plasticity indices varied, with an increase in plasticity index of the soil and molding water content, a trend of increasing tensile strain at crack initiation was observed. In comparison, flexural tensile strength at crack initiation was observed to decrease with an increase in molding water content. Further, flexural rigidity at crack initiation was found to be higher for soils having low plasticity index and moist compacted at low-molding water contents. The developed test setup is capable of inducing distortion levels of 0.105 and can be useful in assessing flexural characteristics of different types of fine-grained soils.
 
Publisher ASCE-AMER SOC CIVIL ENGINEERS
 
Date 2011-07-18T11:49:29Z
2011-12-26T12:50:36Z
2011-12-27T05:36:13Z
2011-07-18T11:49:29Z
2011-12-26T12:50:36Z
2011-12-27T05:36:13Z
2010
 
Type Article
 
Identifier JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 22(5), 460-468
0899-1561
http://dx.doi.org/10.1061/(ASCE)MT.1943-5533.0000045
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4906
http://hdl.handle.net/10054/4906
 
Language en