The evaluation of the freeze-thaw resistance of porous concrete carried out using different test methods

Title: The evaluation of the freeze-thaw resistance of porous concrete carried out using different test methods
Author(s): M. Sugiyama
Paper category : conference
Book title: International RILEM Workshop on Frost Resistance of Concrete
Editor(s): M. J. Setzer, R. Auberg and H. - J. Keck
Print-ISBN: 2-912143-30-6
e-ISBN: 2351580370
Publisher: RILEM Publications SARL
Publication year: 2002
Pages: 311 - 316
Total Pages: 6
Nb references: 5
Language: English

Abstract: In Japan, porous concrete is used experimentally for sidewalks and revetments. It is believed that porous concrete will promote plant growth. The author tested porous con-crete using 2 kinds of freeze-thaw test methods. One test method was ASTM-C666 method A. This method freezes in water and thaws in water. The other test method was ASTM-C666 method B. This method freezes in air and thaws in water. As a result of the test, the following facts were proven. In the case of method A, porous concrete greatly deteriorated within 100 cycles of freezing and thawing and the relative dynamic elastic modulus lowered to 30%. However, in the case of method B, porous concrete was sound within 300 cycles of freezing and thawing and the relative dynamic elastic modulus was 85%. In the case of method B, the relative dynamic elastic modulus was a respectable 65% within 400 cycles of freezing and thawing. In the case of method A, the results are disappointing - the freeze-thaw resistance of porous concrete deteriorates rapidly in the short cycle. In the case of method B, the freeze-thaw resistance of porous concrete does not deteriorate markedly even within the long term.

Online publication: 2010-06-28
Publication type : full_text
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