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最初,混凝土的运用涉及花盆、浴缸和水箱,直到上个世纪,其逐步运用到建筑业中。因其原料易得,造价低廉,生产工艺简单,又是一种耐久性材料,被广泛应用于土木工程之中。混凝土的使用效果直接关系到工程质量的好坏。如果混凝土出现裂缝,将会在不同程度上降低力学性能和承载力,从而影响建筑物的结构耐久性,使建筑物的寿命缩短。因而我们要采取有效的措施,避免混凝土出现有害裂缝,使建筑物能够让人们放心地使用和居住。
Initially, the use of concrete involved pots, baths and tanks until the last century, gradually applying it to the construction industry. Because of its easy availability of raw materials, low cost, simple production process, but also a durable material, is widely used in civil engineering. The use of concrete is directly related to the quality of the project quality. If the concrete cracks, will to some extent reduce the mechanical properties and bearing capacity, thus affecting the durability of the structure of the building, so that the life of the building shortened. Therefore, we must take effective measures to prevent the harmful concrete cracks, so that buildings can make people feel comfortable using and living.