Effects of ceramic polishing powder on frost resistance of concrete
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(1.College of Resources and Civil Engineering, Northeastern University, 110819 Shenyang, China; 2.School of Sciences, Northeastern University, 110819 Shenyang, China)

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TU528.1; X705

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    Abstract:

    The paper discussed the effects of ceramic polishing powder, a type of supplementary cementing material, on concrete frost resistance. More specifically, two kinds of concrete (without air entraining admixture and with air entraining admixture) were developed, and for each case, there were 12 groups of concrete, including 1 group of control concrete, 4 groups of concrete mixed with ceramic polishing powder, 4 groups of concrete mixed with fly ash, and 3 groups of concrete mixed with ceramic polishing powder and fly ash simultaneously, but the cement substitution rate in each group were different. The concrete frost resistance tests were carried out, and some valuable results are obtained. Firstly, when there is not mixed air entraining admixture, the frost resistance of concrete with ceramic polishing powder is the best one, in which the substitution rate of cement with ceramic polishing powder is 30%, and with other substitution rate, the frost resistance of concrete with ceramic polishing powder is the same as that of control concrete. Secondly, when there is not mixed air entraining admixture, the frost resistance of concrete with fly ash is better than that of concrete with ceramic polishing powder, in which the substitution rate of cement with fly ash is 20%, and with other substitution rate, the frost resistance of concrete with ceramic polishing powder is the same as that of concrete with fly ash. In addition, when there is not mixed air entraining admixture, the frost resistance of concrete mixed with ceramic polishing powder and fly ash simultaneously is the same as that of concrete mixed with either. Finally, air entraining admixture can improve the frost resistance of ceramic polishing powder concrete obviously. Therefore, frost resistance of concrete mixed with ceramic polishing powder is the same as or better than that of control concrete.

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History
  • Received:July 03,2014
  • Revised:
  • Adopted:
  • Online: November 09,2015
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