Coefficient of Linear Expansion of Air-Entraining Concrete with Silica Fume

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Abstract:

The effect of water-cement ratio, air content, silica fume and sand ratio of concrete on the coefficient of linear expansion(CLE) was studied by orthogonal experiment. The results show that under a certain amount of cement material, CLE of concrete increase as the water-cement ratio increases and the effect of water-cement ratio on CLE of concrete is remarkable; with the increase of blending ratio of silica fume, the CLE of concrete increases; the CLE of concrete reduces with 3.5% air content in concrete, but rebound with 6% air content in concrete; with the sand rate increases, CLE of concrete increases; CLE per unit compressive strength of concrete with silica fume decreases with increase of silica fume content; CLE per unit compressive strength of concrete with air content increase when air content increase.

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Periodical:

Advanced Materials Research (Volumes 168-170)

Pages:

2116-2120

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Online since:

December 2010

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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