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。
It was shown that dry shrinkage and shrinkage coefficient of specimens decreased if partial cement was replaced by fly ash and slag, and then further by more fly ash.
结果表明，用矿渣和粉煤灰取代部分水泥，随后又增加粉煤灰的比例，可以连续降低固化土的干缩应变和干缩系数。
The influence of different water-cement ratio on early-age autogenous shrinkage and total shrinkage of concrete under dry condition is experimented in this paper.
进行了不同水灰比对混凝土早期自收缩及干燥条件下总收缩影响的试验研究。
The longer the length of trefoil polypropylene filament fiber, the better the anti-dry-shrinkage cracking property of cement mortar.
掺入的三叶形聚丙烯单丝纤维长度越长，水泥砂浆的抗干缩开裂性越好；
It is extremely important to reduce dry shrinkage cracking of cement-stabilized macadam base course materials for prolonging service life of asphalt pavement with semi-rigid base.
减少水泥稳定碎石基层材料的干缩裂缝，对延长半刚性基层沥青路面的使用寿命至关重要。
It is extremely important to reduce dry shrinkage cracking of cement-stabilized macadam base course materials for prolonging service life of asphalt pavement with semi-rigid base.
减少水泥稳定碎石基层材料的干缩裂缝，对延长半刚性基层沥青路面的使用寿命至关重要。
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