磷尾矿保温试块制备与性能研究

将磷尾矿制备成绿色建材可以保护生态环境,实现建筑节能。以磷尾矿为原料,采用物理发泡方式制备了一种保温试块,并对该试块的物理性能进行了研究。结果表明,制备的密度等级为B06～B10级的保温试块其抗压强度等级分别达到了A2.5、A3.5、A5.0三个等级,导热系数在0.12～0.26 W/(m·K)。将密度等级为B07的试块应用在夏热冬冷地区某办公建筑外围护结构中,其保温隔热性能要优于加气混凝土砌块,全年耗冷量降低了1.4%,耗热量降低了2.3%,能较好地满足建筑节能要求。

Study on the Preparation and Performance of Self-insulation Blocks with Phosphate Tailings

The green building materials using phosphate tailings can protect the ecological environment and realize energy conservation of buildings. A kind of self -insulation blocks was prepared using phosphate tailings as the main raw material by physical foaming, and its phycics properties were studied. The results show that the compressive strength grade of the self-insulation block with density grade varying from B06 to B10 was A2.5, A3.5 and A5.0, respectively, and the thermal conductivity varied from 0.12 W/(m.K) to 0.26 W/(m.K). The self-insulation block with density grade B07 was applied to the envelope in an office building located in the climatic region of hot summer and cold winter, and its insulation performance was better than that of aerated concrete block, and the annual cold consumption and the annual heat consumption of this office building using the self-insulation block were reduced by 1.4% and 2.3% respectively, compared with the aerated concrete block, and can effectively suiting need of the energy conservation of buildings.