弹性体是聚合物的一个种类，它的应力-应变曲线表明其变形是完全弹性的，即很低的应力变化就会产生很大的可回复应变。

Elastomer is a class of polymers whose deformation displayed by strain-stress curve is totally elastic i. e. large recoverable strains produced at low stress levels.

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依据压裂曲线，利用破裂压力孔隙弹性计算模型，计算得到了在两个水平主应力方向的弹性应变量；

Basing on fractureing calculation model with pore elasticity theory, the elastic strain in horizontal direction has been determined with hydraulic fractureing curve.

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最后，提出了C45细石混凝土弹性模量和简化三直线混凝土应力-应变关系曲线的计算公式。

Finally, the formulation of both modulus of elasticity and simplified stress-stain relationship curve on C45 fine aggregate concrete were proposed.

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