【摘要】 混凝土收缩是引起混凝土开裂的主要原因之一 ,用纤维来提高混凝土抗收缩变形的能力是改善混凝土体积稳定性的重要途径。本课题对于掺克裂速纤维的砂浆、普通混凝土和高性能混凝土的收缩性能进行了对比研究 ,试验结果表明 ,在混凝土中掺入克裂速纤维可以显著提高混凝土的抗收缩能力更多还原

【Abstract】 ? The shrinkage of concrete is one of the main causes inducing dracks.It is an important measure to improve the volume stability of concrete by incorporated with fiber.This paper strudies the shsdrinkage performance of mortar,ordinary concrete and high performance concrete by comparison.The results show that the shrinkage resistance of concrete is improved significantly by incorporating with fiber. 〔更多还原