小型砌块墙体常见裂缝的成因与控制的几项技术措施

Common Cause of Small Block Wall Cracking and Several Technical Measures

认真做好地质勘察工作,重视地基处理,设置合理的沉降缝,严格按图施工,避免由于地基基础不均匀沉降造成小型砌块墙体裂缝;对温度变化等原因造成的小型砌块墙体裂缝,要有足够的重视,设计时要充分考虑减缓消除热胀冷缩动力源,增强相关砌体抗力,提高抹灰的抗裂能力;对小型砌块的干缩造成小型砌块墙体裂缝,首先要保证小型砌块的保养期,小型砌块应在达到设计强度并在龄期一个月以后方可使用;其次在施工时可以设置构造柱增强墙体的整体性和延性。

Careful geological investigation and foundation treatment, reasonable settlement joints and strict construction can avoid the small block wall cracking caused by the uneven settlement of foundation; the small block wall cracking caused by other factors such as temperature change must also be paid attention to, the designers must consider some measures to mitigate or eliminate the resource caused thermal expansion and enid shrinkage, and increase the resistance of relative masonry and the anti-cracking capacity of plaster layer; as to the small block wall cracking caused by the dry shrinkage Of small blocks, first of all, must ensure the curing period, the small blocks can only be used at one month age and with the design strength, secondly, construction column can be placed to increase the integrity and ductility of the wall when construction.