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2013 (Vol. 6, Issue: 01)
Article Information:

Effect of Fly Ash on Durability of High Performance Concrete Composites

Peng Zhang and Qingfu Li
Corresponding Author:  Peng Zhang 

Key words:  Durability, fly ash, high performance concrete, , , ,
Vol. 6 , (01): 7-12
Submitted Accepted Published
August 09, 2012 September 03, 2012 June 05, 2013
Abstract:

A parametric experimental study has been conducted to investigate the effect of fly ash on the durability of the concrete composites. Four different fly ash contents (10, 15, 20 and 25% respectively) were used. The durability of concrete composites includes water impermeability, dry shrinkage property, the carbonation resistance and the freeze-thaw resistance. The results indicate that the addition of fly ash has greatly improved the water impermeability and restricted the dry shrinkage of concrete composites. With the increase of fly ash content, the length of water permeability and the dry shrinkage strain of the specimens have a tendency of decrease with the increase of fly ash content. However, the addition of fly ash has a little adverse effect on the carbonation resistance and freeze-thaw resistance of concrete composites. With the increase of fly ash content, the carbonation depth is increasing and the relative dynamic elastic modulus of the freeze-thaw specimen is decreasing gradually.
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  Cite this Reference:
Peng Zhang and Qingfu Li, 2013. Effect of Fly Ash on Durability of High Performance Concrete Composites.  Research Journal of Applied Sciences, Engineering and Technology, 6(01): 7-12.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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