当前我国小型水泥砼空心砌块如雨后春荀般地蓬勃发展起来。在原有500个厂家的基础上,又引进了美、日、意、西德等国近二十条生产线,使小砌块生产达到了一个新水平,砌块建筑已有2千多万米~2。砌块建筑采用清水墙面时,经常出现渗水现象,雨水渗入墙内降低墙体保温隔热性能,不仅使人感觉不适,而且冬季结冰还将破坏墙 At present, China’s small cement concrete hollow blocks are booming like spring rain. On the basis of the original 500 manufacturers, it has introduced nearly 20 production lines from the United States, Japan, Italy, and West Germany, which has brought the production of small blocks to a new level. The block building has more than 20 million meters. 2. When the block building adopts clear water wall surface, water seepage phenomenon often occurs. Rain water seeps into the wall to reduce the thermal insulation performance of the wall. Not only does it make people feel uncomfortable, but winter ice will also damage the wall.