如果混凝土可以自我修复,市政将节省很大开支。混凝土是世界上最广泛使用的建筑材料。事实上,它是水之后地球上第二大消费品。试想一下我们每年有多少的混凝土住宅、办公楼、教堂和桥梁建成呀。混凝土有廉价和广泛适应性等优点,但也容易开裂,在极热和极冷环境下抗压性能会恶化。 If concrete can be self-healing, municipalities will save a lot of money. Concrete is the most widely used building material in the world. In fact, it is the second largest consumer on Earth after water. Imagine how many concrete houses, office buildings, churches and bridges we have each year. Concrete has the advantages of being cheap and widely adaptable, but it is also susceptible to cracking, and its resistance to compression deteriorates under extremely hot and cold conditions.