废水泥浆对混凝土体积变形性能的影响

Influence of Waste Cement Slurry on Volume Stability of Concrete

文章研究了废水泥浆对C30和C50在混凝土抗压强度、干缩性能与塑性变形方面的影响,结果表明,在0~6%的掺量范围内,随着废水泥浆掺量增加,混凝土7 d抗压强度增加,28 d抗压强度减小,同龄期混凝土干燥收缩增大,加剧了混凝土裂缝的发展速度与程度。

The influence of waste cement slurry on the compressive strength,dry shrinkage and plastic shrinkage of the C30 and C50 concrete is investigated. With the dosage of 0 -6%, while the dosage of the waste cement slurry is improved, the7 d compressive strength is increased,the 28 d compressive strength is decreased, the dry shrinkage of concrete of the same age period is increased, the development velocity and degree of concrete cracks are enhanced.