论文部分内容阅读
我县一些工程楼面由预制改为现浇,出现了窗台八字裂缝、楼面裂缝及顶层墙体裂缝等现象,现分述有关质量通病于下。一、窗台下斜裂缝及现浇混凝土楼面的裂缝1.原因分析引起窗台下墙体斜裂缝及现浇混凝土楼面裂缝的原因,可归结为以下几个方面。(1)由于混凝土本身收缩引起的裂缝:
Some engineering floors in our county were changed from prefabrication to cast-in-place, and there were phenomena such as bayonet cracks, floor cracks, and cracks at the top of the wall. We are now talking about quality problems. 1. Cracks on the underside of the window sills and cast-in-place concrete floors 1. Cause Analysis The causes of cracks on the underside of the window sills and cracks in cast-in-place concrete floors can be attributed to the following aspects. (1) Cracks due to contraction of the concrete itself: