混凝土有很多优点,它承受菏载的能力很大,而且,可以按照人们的意愿塑造成任意形状,因此,它是当代最重要的建筑材料之一。但是,混凝土也有美中不足之处,它很容易开裂,这不仅影响美观,而且,也影响结构的寿命。有时候裂缝是相当令人头痛的,人们不得不花费很大的气力去对付它。那么,为什么混凝土容易开裂呢?这首先 Concrete has many advantages. It has a great ability to withstand the loads of mint, and it can be shaped into any shape according to people’s wishes. Therefore, it is one of the most important building materials of the present day. However, concrete also has a fly in the ointment. It is easy to crack, which not only affects the appearance, but also affects the life span of the structure. Sometimes cracks are quite vexing, and people have to spend a lot of effort to deal with it. So why is concrete cracking?