【摘要】 目前我国对废瓷粒、疏浚泥、废玻璃粉的处理方法主要有填埋、吹填、倾倒等,这不仅造成了资源的浪费并且污染了生态环境。笔者利用这3种废弃物作为原料制备生态透水环保砖,提供了一个废弃物资源化利用的新途径,进而推动生态文明建设和经济的可持续发展。笔者以制备工艺的单因素实验对透水环保砖性能进行研究,探讨骨料粒径、原料含量、烧成制度以及成形压力对生态透水环保砖抗压强度和透水系数的影响,确定了环保砖的最佳配方为:粒径为2.36～3.35mm的骨料量为80wt%、疏浚泥和玻璃粉含量(MG)比例为3∶1,其中:疏浚泥量15wt%、废玻璃粉量5wt%。最佳的制备工艺参数为:成形压力15MPa、烧成温度1 140℃、保温时间30min。制得最佳透水环保砖样品抗压强度33.26MPa、透水系数0.121cm/s。更多还原

【Abstract】 At present,waste disposal methods in China mainly include landfill,reclamation and dumping,which not only wastes resources but also pollutes the ecological environment.We used wastes(waste porcelain,dredged mud,waste glass powder)as raw materials to prepare ecological garden environmental protection bricks,provides a new way to improve the utilization of waste resources,promote the construction of ecological civilization and sustainable economic development.In this paper,the single-factor experiments of the preparation process were used to study the performance of the permeable bricks.The effects of aggregate size,raw material content,sintering schedule,and molding pressure on the compressive strength and permeability coefficient of the ecological permeable bricks were investigated.And the best basic formulas for the environmental protection bricks were as follows:aggregate size 2.36～3.35 mm,aggregate content 80wt%,MG ratio3∶1(where:dredged mud 15wt%,waste glass powder 5wt%).The optimized preparation process parameters are:sintering temperature 1 140℃,holding time 30 min,molding pressure 15 MPa.The best green permeable brick sample has a compressive strength of 33.26 MPa and a water permeability coefficient of 0.121cm/s.更多还原