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据《安徽科技动态》报道,安徽省建筑科研所从七十年代初开始,利用本省资源天然明矾石,已研制成具有本省特色的明矾石系列产品。 (1)明矾石自应力水泥。系以天然明矾石掺少量石膏做膨胀组分,与425号矿渣水泥按比例混合制成,用于生产φ100mm和φ300mm自应力压力管,可以产生20～40kg/cm~2的自应力值。使用效果良好。 (2)明矾石刚性混凝土防水屋面。系在明矾石自应力水泥制品的基础上,移植到刚性混凝土防水屋面工程上取得的成果。在配合比上较自应力水泥有所改变。即在混凝土
According to the “Science and Technology in Anhui” report, the Anhui Institute of Architectural Science and Technology began in the early 1970s and made use of its natural resource, alum, to develop a series of alum-like products with its own characteristics. (1) Alum stone self-stressing cement. The natural alum stone is mixed with a small amount of gypsum as an expansion component and is made by mixing with slag cement No. 425. It is used to produce φ100mm and φ300mm self-stressing pressure pipes and can generate self-stress values of 20-40kg/cm 2 . It works well. (2) Alum stone rigid concrete waterproof roof. Based on the self-stressing cement products of Mingyu Stone, the results were transplanted to the waterproof concrete roofing project. In the mix ratio, the self-stressing cement has changed. Ie in concrete