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Elasticity and moisture movement of calcium silicate brick under sulphate environment

Wan Ibrahim , M.H and Abu Bakar , B. H and Megat Johari , M. A and Ramadhansyah , P. J and Mohd Fadzil , A Elasticity and moisture movement of calcium silicate brick under sulphate environment. In: The International Conference on Civil and Environmental Engineering Sustainability (IConCEES 2011), 3-5 April 2012, Johor Bahru, Malaysia.

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Abstract

The influence of sodium sulphate (Na2SO4) on the elasticity and mositure movement of calcium silicate brick has been investigated. The samples of calcium silicate brick units were exposed to three different concentration of sodium sulphate i.e. 5%, 10% and 15%. For comparative purpose, several other calcium silicate brick units were exposed to dry and water exposures as control specimens. All specimens were prepared and cured under polyethene sheet for 14 days in controlled environment room maintained at relative humidity and temperature of 80 ± 5% and 25 ± 2ºC respectively. The modulus of elasticity of the samples were tested at the age of 28, 56 and 180 days, meanwhile, the moisture movement was measured and monitored for a period of up to 7 months. As a results, with the increases of sodium sulphate concentration the elasticity of calcium silicate bricks reduce and shrinkage were recorded.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: elasticity; moisture movement; sodium sulphate; calcium silicate brick
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA630-695 Structural engineering (General)
Depositing User: Normajihan Abd. Rahman
Date Deposited: 10 Oct 2012 08:20
Last Modified: 10 Oct 2012 08:20
URI: http://eprints.uthm.edu.my/id/eprint/2533
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