Paper Title:
Deterioration of Concrete Freezing-Thawing in Different Salts Solution
  Abstract

The frost resistance of concrete subjected to 3.5% NaCl solution, 5%, 7%, and 10% Na2SO4 solution and seawater were investigated by quick freeze-thaw test. There were two criteria, the relative dynamic modulus of elasticity (RDME) and the mass of scaling, for evaluating the frost resistance of concrete. The results showed that scaling was the main characteristic of deterioration when concrete subjected to freeze-thaw cycles in 3.5% NaCl solution and seawater, whereas RDME had little change. When freezing and thawing in Na2SO4 solution, concrete failed because of internal damage and surfaces of lower strength concrete specimens appeared local swelling and scaling before failure. Concentration of Na2SO4 solution had influence on frost resistance of concrete: deterioration of concrete in 5% or 7% Na2SO4 solution was severe but slower when the concentration reached to 10%. Entraining air into concrete was the best method to improve the durability of concrete subjected to freeze-thaw cycles in all solutions.

  Info
Periodical
Key Engineering Materials (Volumes 405-406)
Edited by
Hao-Wen YE and Gai-Fei PENG
Pages
315-321
DOI
10.4028/www.scientific.net/KEM.405-406.315
Citation
Y. Ge, W. C. Yang, J. Yuan, B. S. Zhang, A. L. Xiong, "Deterioration of Concrete Freezing-Thawing in Different Salts Solution", Key Engineering Materials, Vols. 405-406, pp. 315-321, 2009
Online since
January 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: In Seok Yoon
Abstract:The surface treatment system is one of the best options to extend the service life of marine concrete in terms of cost effectiveness versus...
765
Authors: Jun Fang Huo, Da Peng Liu, Xiang Dong Shen, Jian Jun Chu, De Tian Song
Abstract:The effect of the frost resistance on hybrid fibers reinforced lightweight aggregate concrete is investigated. And hybrid fibers reinforced...
817
Authors: Yong Gen Wu, Liang Cai Cai, Ya Wei Fu
Chapter 1: Architectural Design and its Theory
Abstract:Green high performance alkali-activated slag pavement concrete(ASC) was prepared by adding Na2SiO3 and NaOH complex activator in slag....
158
Authors: Mengcheng Chen, Kai Wang, Quanshui Wu, Zhen Qin
Chapter 4: Reliability and Durability of Structures
Abstract:According to the service environment of light rail transit and subway structures, in this paper experiments on the corrosion characteristics...
1987
Authors: Hong Zhu Quan
Chapter 2: Material Engineering and Material Applications
Abstract:The effects of sustained high temperature on concrete properties are discussed in this paper. In this experiment, concrete with 6 types of...
150