浅谈论泵送混凝土施工裂缝的成因

泵送混凝土不仅应能改善混凝土的施工性能,对薄壁密筋结构少振捣或不振捣施工,而且应能减少收缩、防止裂缝、提高抗渗性、改善耐久性。但是某些工程表明,泵送混凝土强度不足、凝结异常时有发生,特别是裂缝普遍存在,在一定程度上影响结构的抗渗性和耐久性,值得引足够的重视,本文重点分析其产生原因,找出防止裂缝的措施。

Discussion on the Causes of Pump Concrete Construction Cracks

Pumping concrete could not only improve the workability of concrete, reinforced the structure of the thin dense little vibration or vibration construction,hut should be able to reduce shrinkage and prevent cracking, to improve permeability,improve durability. However, some works show that the lack of pumping concrete strength, condense exceptions occur, especially fracture prevalence, to some extent, they will affect the structure permeability and durability, which should be paid adequate attention to. This paper analyzed the causes and identifies measures to prevent cracks.