INFLUENCE OF THE SALT FROST ACTION ON THE CONCRETE PERFORMANCE

Author(s): Qu Feng, Niu Ditao
Paper category: Proceedings
Book title: Proceedings of CONSEC13 Seventh International Conference on Concrete under Severe Conditions - Environment and Loading Volume I
Editor(s): Z.J. Li, W. Sun, C.W. Miao, K.Sakai, O.E. Gjørv, N.Banthia
ISBN: 978-2-35158-124-7
e-ISBN: 978-2-35158-134-6
Publisher: RILEM Publications SARL
Publication year: 2013
Pages: 902-910
Total Pages: 961
Language : English

Abstract: The fly ash entrained concrete were designed and tested in 3.5% NaCl solution under rapid freezing and thawing cycles.The thickness of concrete damaged layer and relative dynamic modulus of elasticity were studied by the ultrasonic testing technology, and so on the static modulus of elastic. The results showed that the static modulus of elasticity and the relative dynamic modulus of elasticity rapidly decayed at early period,the same to the damage layer thickness growth. However the speed of deterioration could be reduced with the salt frost action continuing. There were a certain correlation between both the static elasticity modulus loss and the concrete salt-frost damaged layer thickness, the same relationship was also adapted to the concrete relative dynamic elastic modulus loss. They were all increased with the salt-frost damaged layer thickness increased.

Online publication : 2013
Publication type : full_text
Public price (Euros) : 0.00