In order to prevent the crack of concrete, many mass concrete takes dry shrinkage as an important index of crack resistance.
为了防止混凝土发生裂缝，许多大体积混凝土在设计中提出抗裂要求，干缩是混凝土抗裂能力的重要指标。
After fiber is mixed into Dry-mixed mortar, toughness, crack resistance of mortar will be improved, and dry shrinkage of mortar has reduced.
在砂浆中加入聚丙烯纤维，可以改善砂浆的韧性，提高砂浆的抗裂性，减小收缩。
After fiber is mixed into Dry-mixed mortar, toughness, crack resistance of mortar will be improved, and dry shrinkage of mortar has reduced.
在砂浆中加入聚丙烯纤维，可以改善砂浆的韧性，提高砂浆的抗裂性，减小收缩。
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