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本文研究了原材料对湿拌砂浆干缩开裂行为的影响,结果表明:湿拌砂浆河砂用量的增加有利于降低其28d收缩值,且能抑制砂浆裂纹的出现;河砂的含泥量在大于5.0%时,砂浆出现开裂行为;外加剂和水泥对砂浆开裂行为没有明显的影响。
The effect of raw materials on the shrinkage and cracking behavior of wet-mixed mortar was studied in this paper. The results show that the increase of sand content of wet-mixed mortar is beneficial to reduce the 28d shrinkage value and inhibit the mortar cracks. 5.0%, mortar cracking behavior; admixture and cement cracking behavior did not have a significant impact.