[L27] 凍害Ⅱ

[L1154] Observed Deformation and Degradation of Coefficient of Thermal Expansion of Mortar Subjected to Freeze-Thaw Cycles

Evdon SICAT¹,Fuyuan GONG¹,上田 多門²,Dawei ZHANG³ (1.Hokkaido University,2.Hokkaido University,3.北海道大学,4.Zhejiang University)

キーワード：凍結融解作用,線膨脹係数,ひずみ,温度

The paper presents the experimental results obtained during a freeze-thaw cycle (FTC) test of meso-scale size mortar under controlled and varying moisture conditions. The results include the strain behavior of specimens which varies depending on the amount of moisture and the degradation of its coefficient of thermal expansion (CTE). Findings show that the CTE drastically changes. The level of the drastic change increases as the amount of moisture present in specimens increases, on which the deformation during FTC is strongly dependent.
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