预应力混凝土空心板裂缝分析与防治

Analysis of Crack of Prestressed Concrete Voided Slab,and Prevention-Treatment of It

预应力混凝土空心板在施工过程中,易产生裂缝。影响因素有:温度应力、原材料质量、施工工艺等。加强施工过程主要工序的管理,特别是混凝土的养护对消除混凝土的表面裂缝尤为关键。

The prestressed concrete voided slab is liable to produce crack in construction. The factors influencing crack are temp stress quality of raw and processed materials, construction technology etc. Strengthening the management of major operations for construction, particularly concrete curing,is a key to eliminate the crack of concrete.