For mass concrete construction, cement caused by hydration heat of concrete pouring temperature and internal stress of dramatic changes in temperature, is the main reason for cracks in concrete occur.
对于大体积混凝土建筑，水泥水化热引起混凝土浇筑内部温度和温度应力剧烈变化，是导致混凝土发生裂缝的主要原因。
On the basis of the sheet internal temperature changes in the plate and the thermal stress distribution.
在此基础上分析了板材内外部的温度变化情况及热应力分布情况。
With the decrease of core sizes, the impact strength modified systems increases and the internal stress of modified systems decreases apparently, while shearing strength changes slightly.
随着核壳粒子橡胶相尺寸的减小，改性体系的冲击强度逐渐增加，内应力降低，但对体系的剪切强度影响并不显著。
With the decrease of core sizes, the impact strength modified systems increases and the internal stress of modified systems decreases apparently, while shearing strength changes slightly.
随着核壳粒子橡胶相尺寸的减小，改性体系的冲击强度逐渐增加，内应力降低，但对体系的剪切强度影响并不显著。
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