摘要
混凝土的塑性收缩裂缝,是其结构原生缺陷的主要来源,无论是否可见,都会影响混凝土的耐久性。文章研究了聚丙烯纤维和膨胀剂复合对砂浆塑性收缩裂缝的影响,结果显示,纤维与膨胀剂复合,在减少塑性收缩裂缝数量和细化裂缝两个方面均优于纤维或膨胀剂的单独作用,砂浆抵抗塑性收缩开裂能力显著提高。
The thesis studies the influence of compounding polypropylene fiber and expansion agent to Plastic shrinkage of mortar. The results shows that the combined use of fibers and expansions was superior to the use of fibers or expansion agents alone in reducing the amounts of plastic shrinkage cracks and diminishing the size of cracks, and it improved the resistance to plastic shrinkage crack extremely.
出处
《安徽建筑工业学院学报(自然科学版)》
2007年第2期1-4,15,共5页
Journal of Anhui Institute of Architecture(Natural Science)
基金
安徽省自然科学基金资助项目(050440705)
安徽省教育厅自然科学基金资助项目(2002KJ082ZD)
关键词
聚丙烯纤维
膨胀剂
砂浆
塑性收缩
裂缝
polypropylene fiber
expansive agent
mortar
Plastic shrinkage
crack