工程结构出现裂缝是比较普遍的现象,现浇混凝土楼板常常出现裂缝问题。工程实践表明,大部分裂缝为表面龟裂、纵向、横向裂缝和斜向裂缝。裂缝的出现是不可避免的,关键在于如何将早期裂缝控制在可以接受的范围内,而不影响结构自身的使用性能和安全性能。因此在实际工程中,有必要对裂缝进行有效控制。 Cracks in the structure of the project is more common phenomenon, cast-in-place concrete floor cracks often occur. Engineering practice shows that most of the cracks are surface cracks, longitudinal cracks, horizontal cracks and oblique cracks. The emergence of cracks is inevitable, the key is how to control the early cracks within the acceptable range, without affecting the structure of its own performance and safety performance. Therefore, in practical engineering, it is necessary to effectively control cracks.