A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Research on the Apparent Thermal Expansion Coefficient of Concrete Subject to Freeze-Thaw Cycles and Chloride Salt Attack
The aim of the research is to determine the strain-temperature rate and investigate the apparent thermal expansion coefficient of three kinds of concrete (ATEC). The strain of concrete with the dimension of 100mm×100mm×100mm subject to freeze-thaw cycles and chloride salt attack were measured using an embedded strain gauge. The ATEC was calculated from the strain-temperature rate using linear regression. The results show that the absolute value of ATEC of specimen saturated by 3.5 wt. % chloride salt solution was reducing with the progress of freeze-thaw cycles. However, the ATEC of the dried specimen subject to heating and cooling is independent from water to cement ratio, and approximately maintains the same level during the whole heating and cooling cycle, and the ATEC of air-entrained specimen is constant within 20 cycles. Overall, deterioration of concrete matrix can be evaluated by apparent thermal expansion coefficient besides weight loss and dynamic elastic modulus.
Research on the Apparent Thermal Expansion Coefficient of Concrete Subject to Freeze-Thaw Cycles and Chloride Salt Attack
The aim of the research is to determine the strain-temperature rate and investigate the apparent thermal expansion coefficient of three kinds of concrete (ATEC). The strain of concrete with the dimension of 100mm×100mm×100mm subject to freeze-thaw cycles and chloride salt attack were measured using an embedded strain gauge. The ATEC was calculated from the strain-temperature rate using linear regression. The results show that the absolute value of ATEC of specimen saturated by 3.5 wt. % chloride salt solution was reducing with the progress of freeze-thaw cycles. However, the ATEC of the dried specimen subject to heating and cooling is independent from water to cement ratio, and approximately maintains the same level during the whole heating and cooling cycle, and the ATEC of air-entrained specimen is constant within 20 cycles. Overall, deterioration of concrete matrix can be evaluated by apparent thermal expansion coefficient besides weight loss and dynamic elastic modulus.
Research on the Apparent Thermal Expansion Coefficient of Concrete Subject to Freeze-Thaw Cycles and Chloride Salt Attack
Wang, Zhen-Di (author) / Yao, Yan (author) / Wang, Ling (author)
2012
7 Seiten
Conference paper
English
| British Library Conference Proceedings | 2012
Deformation of concrete subject to freeze-thaw cycles combined with chloride salt solution
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