lightweight aggregate concrete

例句：

1. 1.The construction of this bridge is made with lightweight aggregate concrete.
   这座桥梁的建设使用了轻质混凝土。
2. 2.Lightweight aggregate concrete is a popular choice for building high-rise buildings.
   轻质混凝土是建造高层建筑的热门选择。
3. 3.The engineers used lightweight aggregate concrete to make the structure more durable and lighter.
   工程师们使用轻质混凝土使结构更加耐用且更轻。