Research results show that the relationship between autogenous shrinkage at early ages and ultimate tensile strain can be approximately figured by a quadric equation.
研究结果表明，混凝土早期自收缩大小与相应的极限拉伸应变具有显著的二次曲线关系；
The early cracking of concrete is usually caused by dry shrinkage, autogenous shrinkage of cement hydration and thermal-strain by hydration heat of cement.
混凝土的早期开裂主要是由于混凝土失水所产生的干燥收缩、水泥水化所产生的混凝土自收缩以及水泥水化热所产生的温度应变所引起。
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