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科学家制造出能够修复自身裂缝的“活体”混凝土
混凝土在我们的日常生活中随处可见——从建筑物到道路——但它会随着时间和压力的增加而开裂。这些裂缝,即使是微小的裂缝,也会让水和空气进入,最终导致生锈,削弱隐藏在其中的钢筋。修复这些裂缝既危险又昂贵,尤其是在桥梁和高速公路上。
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