1不用砂浆的砖 德国推出了一种在砌墙时不用砂的砖。砖的各个侧面呈细齿状，砖体内浸渍有特殊的 胶状物。砌墙时，只需放在水中浸泡一下，砖与砖之间就具有足够的粘性，而不必涂抹砂浆 。使用证明，用这种砖建造的房屋，墙体的强度等性能完全达到标准要求，并具有隔热、隔 音 A mortar-free brick Germany introduced a brick-free brick. Each side of the brick was serrated, the brick body is impregnated with a special jelly. When the wall is built, it just needs to be soaked in water and has sufficient stickiness between the brick and the brick without having to apply mortar. Proof of use, the use of such bricks built houses, walls of the strength and other properties fully meet the standard requirements, and with thermal insulation, sound insulation