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滑模施工技术施工速度快、工程质量高、规模大,现代化、智能化程度高。但是滑模施工技术中要求混凝土的工作性好,保证摊铺后混凝土边角稳定且不溜角塌边。文章通过对许尉高速公路滑模施工水泥混凝土配合比的设计,说明滑模施工水泥混凝土中应加入引气剂,通过试验证明加入引气剂可以增大混凝土拌和物的粘聚性,防止混凝土泌水离析,提高混凝土的匀质性,提高弯拉强度,降低弯拉弹性模量。
Slipform construction technology, construction speed, high-quality projects, large-scale, modern, high degree of intelligence. However, slipform construction technology requires good workability of concrete to ensure that the corner concrete after paving stability and not slipped collapse edge. Through the design of the mix proportion of cement concrete for slipform construction in Xu-Wei Expressway, it is shown that the air-entraining agent should be added into the cement concrete with sliding mode construction. The experiment shows that the addition of air-entraining agent can increase the cohesiveness of concrete mix and prevent the concrete Bleeding segregation, improve the homogeneity of concrete, improve flexural strength, lower flexural modulus.