磷渣基人造大理石的实验研究

以磷渣为主要原料,研究磷渣粉与粉煤灰和熟石灰的质量比、水胶质量比、胶骨质量比、骨料组成等对磷渣基人造大理石性能的影响,采用SEM电镜和抗折抗压实验仪表征材料性能。结果表明：磷渣基胶凝材料各物料配比为m（磷渣粉）:m（粉煤灰）:m（熟石灰）=90:4:6,水胶质量比为0.18,胶骨质量比为1:1.5,骨料组成为m（炉渣）:m（细磷渣）:m（粗磷渣）=10:40:10,磷渣基人造大理石的抗压强度和抗折强度可以达到94.38 MPa和12.09 MPa,其抗压强度和抗折强度均高于天然大理石,可在广泛领域替代天然大理石使用,为磷渣的资源化利用开辟一条新的路径。

Experimental study on phosphorous slag-based artificial marble

With the phosphorous slag as main raw material,the effects of the mass ratio of phosphorous slag powder,fly ash and hydrated lime,the mass ratio of water and glue,the mass ratio of glue and bone and the composition of aggregate etc.on the properties of phosphorous slag-based artificial marble were studied.The material properties were characterized by SEM electron microscope and bending and compression test instrument.The results showed that the ratio of phosphorus slag-based cementation materials,i.e.the mass ratio of phosphorus slag powder,fly ash and hydrated lime was 90:4:6,the mass ratio of water to glue was 0.18,the mass ratio of glue to bone was 1:1.5,and aggregate gradation（the mass ratio of slag,coarse phosphorus slag and fine phosphorus slag） was 10:40:10.The compressive strength and flexural strength of phosphorous slag-based artificial marble can reach 94.38 MPa and 12.09 MPa respectively.Its compressive strength and flexural strength are higher than natural marble.It can be used as an alternative to natural marble in a wide range of fields,opening up a new path for the resource utilization of phosphorus residue.