铁尾矿基玻璃透水砖的制备及性能研究
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摘要
为提高透水砖的力学性能与透水性能,同时为铁尾矿综合利用寻求一条有途径,以铁尾矿为主要原料,研发出一种新型玻璃透水砖。用铁尾矿熔制基础玻璃,参照基础玻璃DSC分析结果制定烧结温度,将基础玻璃按照粒度大小分成5组进行烧结得到玻璃透水砖试样。对试样的抗压强度、透水系数、保水性做测试分析。结果表明,当基础玻璃粒度为4～2. 23 mm、烧结温度为760～810℃时,试样各项性能指标较为理想。此时试样的抗压强度为24 MPa,透水系数为1. 06～0. 98 cm/s,保水性为0. 9～0. 4 g/cm。玻璃透水砖可以同时具备较大的抗压强度和良好的透水性,有很好的推广应用前景。
In order to improve the mechanical properties and water permeability of permeable brick,and find a way for the comprehensive utilization of iron tailings,a new type of glass permeable brick was developed with the main raw material of iron tailings. The basic glass was melted by iron tailings,and the sintering temperature was determined according to DSC analysis results of the basic glass. The basic glass was divided into 5 groups according to particle size and sintered to obtain glass permeable brick samples. The compressive strength,permeability coefficient and water retention of the samples were tested and analyzed. The results showed that the various performance indexes of the sample were ideal with the basic glass particle size of 4 ～ 2. 23 mm and the sintering temperature of 760 ～ 810 ℃. The compressive strength of the samples was 24 MPa. The water permeability coefficient was 1. 06 ～ 0. 98 cm/s,and the water retention was 0. 9 ～ 0. 4 g/cm. Glass permeable owns the greater compressive strength as well as good permeability simultaneously,which has a good prospect of popularization and application.
In order to improve the mechanical properties and water permeability of permeable brick,and find a way for the comprehensive utilization of iron tailings,a new type of glass permeable brick was developed with the main raw material of iron tailings. The basic glass was melted by iron tailings,and the sintering temperature was determined according to DSC analysis results of the basic glass. The basic glass was divided into 5 groups according to particle size and sintered to obtain glass permeable brick samples. The compressive strength,permeability coefficient and water retention of the samples were tested and analyzed. The results showed that the various performance indexes of the sample were ideal with the basic glass particle size of 4 ～ 2. 23 mm and the sintering temperature of 760 ～ 810 ℃. The compressive strength of the samples was 24 MPa. The water permeability coefficient was 1. 06 ～ 0. 98 cm/s,and the water retention was 0. 9 ～ 0. 4 g/cm. Glass permeable owns the greater compressive strength as well as good permeability simultaneously,which has a good prospect of popularization and application.
引文
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[2]张耀.尾矿:被放错位置的资源[N].中国矿业报,2018-12-01(003).
[3]刘志强,郝梓国,刘恋,等.我国尾矿综合利用研究现状及建议[J].地质论评,2016,62(5):1277-1282.
[4]王长龙,梁宝瑞,郑永超,等.热处理对煤矸石铁尾矿微晶玻璃微观结构和力学性能影响[J].材料热处理学报,2015,36(11):13-18.
[5]刘璇,崔孝炜.铁尾矿-粉煤灰基地质聚合物的制备及性能研究[J].商洛学院学报,2016,30(2):43-46.
[6]马崇振.攀枝花某铁尾矿提钛降杂试验研究[J].矿产保护与利用,2016(5):74-78.
[7]Kangal,O.,Guney,A.. Pilot scale tests for evaluation of feldspar tailings for ceramic industry[J]. Key engineering materials,2004,264(2):1415-1418.
[8]侯芮,陈四利,马啸,等.铁尾矿砂水泥复合土的力学性能研究[J].中外公路,2019(1):206-209。
[9]马雪英.硅质铁尾矿粉对混凝土强度性能影响研究[J].混凝土世界,2019(2):68-73.
[10]吴瑞东,张广田,汪坤.铁尾矿微粉混凝土强度和氯离子扩散系数试验研究[J].施工技术,2019,48(3):25-27,54.
[11]宋少民,张乐义,李紫翼.铁尾矿微粉对水泥混凝土后期性能的影响[J].混凝土,2019(1):128-131,145.
[12]Li H,Harvey J,Ge Z. Experimental investigation on evaporation rate for enhancing evaporative cooling effect of permeable pavement materials[J]. Construction and building materials,2014,65:367-375.
[13]成智文,闫开放.陶瓷透水砖的生产技术及发展前景[J].墙材革新与建筑节能,2016(1):33-35.
[14]李国昌,王萍.蒸压法制备镍铁矿渣透水砖[J].矿产保护与利用,2017(2):101-106.
[15]郭大龙,李宇,艾仙斌,等.利用铁尾矿制备低温烧结陶瓷材料[J].冶金能源,2014,33(3):53-57.
[16]中华人民共和国发展和改革委员会.透水砖行业标准[S].JC/T 945-2005,北京. 2005.
[17]杨柯,汪永清,周健儿,等.赣南稀土尾砂制备建筑陶瓷玻化砖的研究[J].中国陶瓷,2014,50(10):75-80.
[18]商洛学院.一种玻璃透水砖:201720583411. 7[P]. 2017-05-23.
[19]汪俊松,孟庆林,张玉,等.透水砖吸水及保水性能研究[J].建筑科学,2017,33(10):45-52.
[20]周超群,曾令可,程小苏,等.透水砖研究现状及应用前景[J].中国陶瓷,2017,53(9):6-10.
[21]王容华,乔朱思远.海绵城市常用透水铺装材料研究[J].建材与装饰,2017(38):30-31.
[22]路俊杰.透水砖路面应用存在的问题及对策[J].中国市政工程,2018(2):16-18,128.