Properties of Cement-based Composite Materials under Different Storing Environment Temperature

3rd International Conference on Advanced Materials Research and Applications

Weng, T.L.^1 ; Weng, S.H.^2 ; Cho, S.W.^2

Physics Division, Tatung University, Taipei City

104, Taiwan^1

Department of Architecture, China University of Science and Technology, Taipei City

115, Taiwan^2

关键词: Cement based composite material;    Chloride ions;    Chloride migration coefficients;    Chloride migration tests;    Environment temperature;    Fine aggregates;    Migration coefficients;    Water/cement ratio;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/170/1/012008/pdf
DOI  :  10.1088/1757-899X/170/1/012008

来源: IOP

【 摘 要 】

This study reports on the properties of cement-based composite materials (mortars) under different storing environment temperature, as determined using the accelerated chloride migration test (ACMT). Mortars with a water/cement ratio of 0.45 and five fine aggregate volume fractions (0%, 15%, 30%, 50% and 60%) under various environment temperatures (25, 40, 60 and 80°C) were evaluated according to the passage of chloride ions through the specimens using ACMT. Calculate chloride migration coefficients on the steady-state. Cement-based composite materials with 60 % fine aggregate presented a migration coefficient higher than that of other specimens, whereas mortar with 30 % fine aggregate was lower, due to the effects of dilution and tortuosity.