空心砌块作烟囱的优越性许凤权（四川省黔江地区建筑勘察设计院）小型水泥进空心砌块是一种新型材料，它是建造房屋的主要墙体材料，在房屋建筑中，墙体材料占总建筑投资的３５％，用此材料可减轻自重２５％节省材料１５％，同时还可提高工效门．８％，因此空心砌块是最理... The superiority of hollow blocks as a chimney Xu Fengquan (Sichuan Province Lancang Area Architectural Survey and Design Institute) Small cement-entry hollow blocks are a new type of material. It is the main wall material for building houses. In the house building, the wall material accounts for 35% of the total construction investment, with this material can reduce the weight of 25% to save 15% of the material, while also improving the efficiency of the door. 8%, so hollow blocks are the most reason ...