住宅泵送混凝土现浇楼板裂缝预防措施

Preventive measures to cracks of pumping cast-in-place concrete floor slab in residence building

主要阐述在施工过程中预拌混凝土现浇钢筋混凝土楼板开裂的预防措施。对现浇楼板施工中裂缝产生的防治有一定的借鉴。较详细的论述了混凝土塑性收缩、超载,模板支撑不稳定,电线暗埋PVC管,干缩和冷缩等引起裂缝的预先防治办法。早期裂缝绝大部分是可以防止的,而那些人为因素造成的裂缝更是如此。

The preventive measures to cracks of pumping cast-in-place concrete floor slab in residence building are stated, which provides some references for the prevention of cracks caused during cast-in-place concrete floor slab construction,A detailed statement regarding the preventive measures caused by plastic shrinkage of concrete, overloading, unsteady form brace, electrical wire, buried PVC pipe, dry shrinkage and cold shrink is grven.Most of cracks can be prevented in advance, especially to the cracks caused by human factors.