Based on the insufficiency of existing expansive admixture in compensating shrinkage of the mass concrete, a double expansive resources admixture is introduced.

本文分析了现有膨胀剂在补偿大体积混凝土收缩方面的不足，介绍了一种双膨胀源膨胀剂。

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The double mix of expansion agent and shrinkage-reducing agent is an effective way to reduce the drying shrinkage fall of expansive concrete.

膨胀剂和减缩剂双掺使用是减少膨胀混凝土干燥收缩落差的有效措施。

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High-shrinkage PET fabric was researched and developed by using the double-layer weave and combining high-shrinkage PET filament with the other fibers.

采用双层织物组织结构，运用高收缩聚酯长丝与其他纤维纱线的配合，对高收缩聚酯纤维织物进行了设计开发和性能测试。

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