免烧结煤矸石透水砖的试验研究
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摘要
研究以煤矸石为主要原料制备免烧结煤矸石透水砖,探讨了煤矸石粒径、煤矸石与水泥质量比、成型压力对免烧结煤矸石透水砖的透水系数和劈裂抗拉强度的影响。试验结果表明,较优工艺参数为煤矸石粒径为4.75～9.5 mm,煤矸石与水泥的质量比为3∶1,成型压力为4 MPa,采用该工艺参数所制备的透水砖性能较优,其透水系数为2.34×10-2 cm/s,劈裂抗拉强度为1.4 MPa。
The coal gangue as the main raw material is studied to prepare the coal gangue pervious brick. The effects of the particle size of the gangue,the mass ratio of the coal gangue and cement and the molding pressure on the permeability coefficient and splitting tensile strength of the coal gangue pervious brick are discussed. The test results show that the better technological parameters are 4.75～9.5 mm,the mass ratio of coal gangue and cement is 3 ∶1,and the molding pressure is 4 MPa.The performance of the permeable brick prepared by this process parameter is better,the permeability coefficient is 2.34×10-2 cm/s and the splitting tensile strength is 1.4 MPa.
The coal gangue as the main raw material is studied to prepare the coal gangue pervious brick. The effects of the particle size of the gangue,the mass ratio of the coal gangue and cement and the molding pressure on the permeability coefficient and splitting tensile strength of the coal gangue pervious brick are discussed. The test results show that the better technological parameters are 4.75～9.5 mm,the mass ratio of coal gangue and cement is 3 ∶1,and the molding pressure is 4 MPa.The performance of the permeable brick prepared by this process parameter is better,the permeability coefficient is 2.34×10-2 cm/s and the splitting tensile strength is 1.4 MPa.
引文
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[6]赵亚兵,张新朋,吴楠,等.环保免烧结煤矸石透水砖的制备方法及其透水性能[J].硅酸盐通报,2014,33(12):3255-3260,3271.
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[11]高丹.利用给水污泥制备环保透水砖的试验研究[D].长沙:长沙理工大学,2012.
[2]俞心刚,李德军,田学春,等.煤矸石泡沫混凝土的研究[J].新型建筑材料,2008(1):16-19.
[3]光喜萍.山西省煤矸石现状与综合利用[J].山西煤炭管理干部学院学报,2010,23(2):176-177.
[4]赵智海.无粘结剂冷压成型工艺生产工业型煤[J].煤炭加工与综合利用,1996(4):83-84.
[5]秦小艳.山西省煤矸石推广应用现状及建议[J].煤炭加工与综合利用,2018(1):70-71,75.
[6]赵亚兵,张新朋,吴楠,等.环保免烧结煤矸石透水砖的制备方法及其透水性能[J].硅酸盐通报,2014,33(12):3255-3260,3271.
[7]王志,王悦.可持续发展与环保型材料[J].硅酸盐通报,2001(3):88-93.
[8]张栋,齐敏.透水砖的优势及市场前景分析[J].砖瓦,2014(1):38-40.
[9]陈连发,陈悦,李龙,等.花岗岩环保型透水砖的研制[J].混凝土与水泥制品,2015(8):67-72.
[10]饶玲丽,曹建新,张洪波,等.粉煤灰透水砖的制备研究[J].新型建筑材料,2006(7):48-50.
[11]高丹.利用给水污泥制备环保透水砖的试验研究[D].长沙:长沙理工大学,2012.