摘要
分析了混凝土早期裂缝形成的原因,并从材料和施工方面提出了减少或防止混凝土开裂的措施。研究结果表明,选择适宜的水泥,引入一定量的矿渣粉或粉煤灰取代水泥,掺入一定量的膨胀剂和减缩剂,施工中控制内外温差,浇水养护,可以减少或防止混凝土早期开裂。
In this paper, the reasons of early cracks of concrete are analyzed and related preventive measures are presented from the aspects of materials and construction of concrete. The results indicated that the early cracks of concrete could be reduced when cement was partially replaced by fly ash or slag powder, adding some shrinkage reducing admixture or expansive admixture in cement, controlling the temperature difference inside and outside of concrete and curing in water.
出处
《交通科技》
2008年第1期68-71,共4页
Transportation Science & Technology
关键词
混凝土早期裂缝
控制措施
减缩剂
膨胀剂
early cracks of concrete
preventive measures
shrinkage reducing admixture
expansive admixture
