数十年来 ,桥梁工程师孜孜不倦地设法使桥梁不结冰 ,但穿过混凝土放置电线或加热液体的想法被认为太复杂或费用太昂贵。然而 ,美国内布拉斯加的道路部门官员正在寻求导电混凝土这种相对较新的构想 ,即在混凝土拌合料中加入金属碎片。当硬化的混凝土桥面板插入通电时 ,金属碎片 For decades bridge engineers worked tirelessly to bridge the bridge, but the idea of ​​placing wires or heating liquids through concrete was considered too complicated or expensive. However, roadside officials in Nebraska, the United States, are seeking a relatively new concept of conductive concrete by adding metal chips to concrete mixes. Metal shards when hardened concrete bridge deck is plugged in