混凝土是目前用量最大的一种建筑材料,广泛应用于工业与民用建筑、农林与城市建设、水利与海港工程。然而,许多混凝土结构在建设与使用过程中出现了不同程度、不同形式的裂缝。这不仅影响建筑物的外观,更危及建筑物的正常使用和结构的耐久性。因此,裂缝问题倍受人们关注。 Concrete is one of the largest building materials currently used. It is widely used in industrial and civil construction, agriculture, forestry and urban construction, and water conservancy and harbor engineering. However, many concrete structures have different degrees of cracks in their construction and use. This not only affects the appearance of the building, but also jeopardizes the normal use of the building and the durability of the structure. Therefore, the crack problem has attracted much attention.