一种新型的建筑材料——砂子砖,最近已在德国研制成功。砂子砖以砂子为主,并掺入适量的聚丁二烯液体,固化后即成为坚固耐用的砂子砖。砂子砖制作容易,把聚丁二烯液和砂子相混合,注入模型中,待其固化即可成 A new type of building material, sand brick, has recently been successfully developed in Germany. The sand brick is dominated by sand and incorporates an appropriate amount of polybutadiene liquid, which becomes a solid sand brick after curing. The sand bricks are easy to make, and the polybutadiene liquid and the sand are mixed and injected into a model, and the solidification can be completed.