建筑物和构筑物混凝土出现裂缝,是施工和使用中常遇到的问题,但是,裂缝能不能得到避免呢?近年新兴的裂缝控制技术告诉我们,它是能够办到的。现代显微技术表明,由于混凝土组成材料热胀冷缩的差异,无不出现细微的裂缝,通称微观裂缝,只是肉眼看不见罢了。通常把肉眼 Cracks in concrete and buildings are common problems encountered in construction and use. However, can cracks be avoided? In recent years, new crack control technologies have taught us that it can be done. Modern microscopy technology shows that due to the difference in thermal expansion and contraction of the constituent materials of concrete, there are subtle cracks, commonly known as micro cracks, but they are invisible to the naked eye. Usually the naked eye