美国科学家发现，一种新的轻型材料，可以像绷带那样缠绕在损坏的混凝土梁柱上，它有希望作为一种经济有效的办法来解决这些构造上的问题。 碳纤维类，包括不蚀玻璃纤维等其它纤维，都有助于道路、桥梁、建筑物和其它构筑件的维修。而新型复合材料，不仅比钢制加强筋重量轻和结 American scientists have found that a new lightweight material that can wrap around a damaged concrete beam like a bandage is promising as a cost-effective solution to these structural problems. Carbon fibers, including other fibers that do not etch glass, contribute to the maintenance of roads, bridges, buildings and other structures. The new composite materials, not only lighter than the steel stiffener and knot