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Maturity and Strength Development of Mortar with Antifreezing Admixture at Temperatures Lower than 0 °C
Hyeonggil Choi1, Yukio Hama2, Madoka Taniguchi3
1School of Architecture, Kyungpook National University, Daegu 41566, Korea. hgchoi@knu.ac.kr.
Abstract:
This study investigated the effect of temperature and time at temperatures lower than 0 °C on mortar mixed with antifreezing admixture to determine the temperature-time function with the aim of expressing the effect universally. As a result, the maturity equation for temperatures lower than 0 °C proposed in previous studies was verified to be applicable to type-B blast furnace slag cement. The applicability of this equation at temperatures lower than 0 °C had not been investigated hitherto. The strength development attributable to the effect of the antifreezing admixture can be expressed as the reference temperature, and the reduction in the chemical potential of water chemical potential reduction was found to depend on the reaction rate. A new maturity equation for temperatures lower than 0 °C was proposed considering the effect of the antifreezing admixture.
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