The research shows that fly ash could restrain early autogenous shrinkage by changing the parameter of binder, such as hydrated velocity, creep coefficient, elastic modulus and so on.

研究表明：粉煤灰通过改变胶凝材料体系水化速度、徐变系数、弹性模量，可以有效抑制早期混凝土的自收缩。

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In this paper, the effects of the steel fibers of different elastic modules, polypropylene fibers and polyacrylonitrile fibers on the dry shrinkage of concrete are studied.

主要研究了不同弹性模量的钢纤维、聚丙烯纤维和聚丙烯腈纤维混杂对水泥混凝土的干燥收缩性能的影响。

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Illustrated the uncovered polyurethane fiber as an example, the popular detecting points for semi products are given, such as the shrinkage in boiling water and elastic recovery.

以氨纶裸丝为例，介绍了氨纶织物半成品的检测要点，即目前常用的沸水收缩率和弹性回复率。

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