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由于混凝土施工和本身变形、约束等一系列问题,硬化成型的混凝土中存在着众多的微孔隙、气穴和微裂缝,微裂缝通常是一种无害裂缝,对混凝土的承重、防渗及其他一些使用功能不产生危害。但是在混凝土受到荷载、温差等作用之后,微裂缝就会不断的扩展和连通,最终形成我们肉眼可见的宏观裂缝,也就是混凝土工程中常说的裂缝,这些裂缝对于建筑工程来说存在很大弊端,需要我们建筑工程设计和施工人员采取措施努力去克服。
Due to a series of problems such as concrete construction and its own deformation and restraint, there are many micro-pores, air cavities and micro-cracks in the hardened concrete. The micro-cracks are usually harmless cracks. The load-bearing, impervious and other Some uses do not harm. However, after the load, temperature difference and other effects of concrete, micro-cracks will continue to expand and connect, and ultimately the formation of our macroscopic macroscopic cracks, which is often said in concrete engineering cracks, these cracks for the construction of a large drawback , We need the construction engineering design and construction personnel to take measures to overcome.