CN109020494A - 一种复合透水砖的制备方法 - Google Patents

一种复合透水砖的制备方法 Download PDF

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CN109020494A
CN109020494A CN201811078373.5A CN201811078373A CN109020494A CN 109020494 A CN109020494 A CN 109020494A CN 201811078373 A CN201811078373 A CN 201811078373A CN 109020494 A CN109020494 A CN 109020494A
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permeable brick
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裘友玖
付平
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Foshan Anhui And Amperex Technology Ltd
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Abstract

本发明涉及一种复合透水砖的制备方法,属于建筑材料技术领域。本发明以煤矸石、高炉渣作为基础材料,通过盐酸除杂及扩大空隙处理,在使用表面活性剂及物理助磨的方法,对颗粒进行活化,通过活化提高颗粒的活性,再将其与海泥、动物骨粉等进行混合,利用分散剂提高原料的充分分散混合,在煅烧过程中,首先海泥形成类陶瓷颗粒,并且通过辅助剂中的竹屑及添加剂的分解产生的气体进行造孔,形成孔隙,其次动物骨粉形成了骨炭,增加了生物活性,提高透水性,最后羟基磷酸钙与原料中的碳酸钙进行结合形成合成骨炭,进一步增加了活性,并且钛酸四丁酯分解产生二氧化硅,提高透水砖的自清洁作用,并且负载部分铁元素,提高孔隙清洁能力,提高透水效果。

Description

一种复合透水砖的制备方法
技术领域
本发明涉及一种复合透水砖的制备方法,属于建筑材料技术领域。
背景技术
目前城市广场、商业街、人行道、社区活动地、停车场等的地面主要用 花岗岩、大理石、釉面砖、水泥和柏油等不透水的材质铺设,不透水的地面对城市环境的危害非常大。下雨时,不透水地面完全阻止了雨水直接渗透入地,满地积水使人们的出行变得很不方便;宝贵的水资源最后随着排水管道流走,加重了城市排水设施的负担;雨水的大量流失导致地下水位难以回升,直接影响到城市植被的健康,使得城市中的地表植物难以正常生长,加重市政绿化负担;雨水的大量流失进一步加重城市的干旱、缺水问题。
目前市场上的一些透水砖主要原料采用陶瓷或混凝土,陶瓷透水砖要采用大量的矿土资源,原料的开采造成对环境的破坏,陶瓷型透水砖生产工艺复杂,而且陶瓷基砖在成型烧结时需要耗费大量的能源,成本高,生产效率低,环保投入大,一次性投资规模大;混凝土透水砖虽然成本低,但现有的混凝土透水砖表面的颗粒粗大(一般骨料颗粒粒径为3mm~6mm),靠表面的大孔隙透水,空隙率在20%以上,容易被灰尘堵死,因此不能持续保持高的透水性能;而且由于空隙较大,其用于水过滤效果也较差。
发明内容
本发明所要解决的技术问题:针对目前透水砖孔隙率低,透水效果差的问题,本发明提供了一种复合透水砖的制备方法。
为解决上述技术问题,本发明采用如下所述的技术方案是:
一种复合透水砖的制备方法,该制备方法包括如下步骤:
(1)取混合废渣、盐酸溶液按质量比1:4~6搅拌混合,过滤,将滤渣、表面活性剂按质量比10~13:1放入进行球磨,收集球磨混合物;
(2)按重量份数计,取90~100份球磨混合物、70~80份水、30~40份海泥、20~23份动物骨粉、15~18份硝酸铁、9~11份辅助剂、8~12份分散剂、3~6份添加剂,将球磨混合物、水、海泥、动物骨粉混合均匀,收集混合物;
(3)将混合物、硝酸铁、辅助剂、分散剂及添加剂进行超声震荡,收集震荡混合物,放入制砖机中进行挤压,得透水砖坯料;
(4)将透水砖坯料放入静置室中,在氢气和氮气气按摩尔比2:5混合成的混合气中静置,再放入窑炉中进行烧结,烧结温度为1100~1200℃,冷却至室温,即得复合透水砖。
所述步骤(1)中混合废渣为煤矸石、高炉渣按质量比3~5:2~6混合碾磨而成。
所述步骤(1)中表面活性剂为十二烷基硫酸钠、十二烷基二甲基溴化铵中的任意一种。
所述动物骨粉为猪骨、鸡骨按质量比4~7:2~5放入粉碎机中进行粉碎,过筛,收集过筛颗粒,即得骨粉。
所述分散剂为硬脂酸镁、硬脂酸钠中的任意一种。
所述辅助剂为羟基磷酸钙、竹屑、钛酸四丁酯按质量比3~6:1:3混合而成。
所述添加剂为四丁基硫酸氢铵、环糊精中任意一种。
本发明与其他方法相比,有益技术效果是:
本发明以煤矸石、高炉渣作为基础材料,通过盐酸除杂及扩大空隙处理,在使用表面活性剂及物理助磨的方法,对颗粒进行活化,通过活化提高颗粒的活性,再将其与海泥、动物骨粉等进行混合,利用分散剂提高原料的充分分散混合,在使用辅助剂与原料进行混合,在煅烧过程中,首先海泥形成类陶瓷颗粒,并且通过辅助剂中的竹屑及添加剂的分解产生的气体进行造孔,形成孔隙,增加孔隙率,其次动物骨粉形成了骨炭,增加了生物活性,提高透水性,最后羟基磷酸钙与原料中的碳酸钙进行结合形成合成骨炭,进一步增加了活性,并且钛酸四丁酯分解产生二氧化硅,提高了透水砖的自清洁作用,并且负载部分铁元素,提高孔隙清洁能力,提高透水效果。
具体实施方式
混合废渣为煤矸石、高炉渣按质量比3~5:2~6混合碾磨而成。
表面活性剂为十二烷基硫酸钠、十二烷基二甲基溴化铵中的任意一种。
动物骨粉为猪骨、鸡骨按质量比4~7:2~5放入粉碎机中进行粉碎,过200目筛,收集过筛颗粒,即得骨粉。
分散剂为硬脂酸镁、硬脂酸钠中的任意一种。
辅助剂为羟基磷酸钙、竹屑、钛酸四丁酯按质量比3~6:1:3混合而成。
添加剂为四丁基硫酸氢铵、环糊精中任意一种。
一种复合透水砖的制备方法,该制备方法包括如下步骤:
(1)取混合废渣、0.6mol/L盐酸溶液按质量比1:4~6搅拌混合30min,过滤,将滤渣、表面活性剂按质量比10~13:1放入球磨机中以600r/min进行球磨25min,收集球磨混合物;
(2)按重量份数计,取90~100份球磨混合物、70~80份水、30~40份海泥、20~23份动物骨粉、15~18份硝酸铁、9~11份辅助剂、8~12份分散剂、3~6份添加剂,将球磨混合物、水、海泥、动物骨粉混合均匀,收集混合物;
(3)将混合物、硝酸铁、辅助剂、分散剂及添加剂进行超声震荡70min,收集震荡混合物,放入制砖机中以8MPa进行挤压,得透水砖坯料;
(4)将透水砖坯料放入静置室中,在氢气和氮气气按摩尔比2:5混合成的混合气中静置15min,再放入窑炉中进行烧结,烧结温度为1100~1200℃,冷却至室温,即得复合透水砖。
混合废渣为煤矸石、高炉渣按质量比5:6混合碾磨而成。
表面活性剂为十二烷基二甲基溴化铵。
动物骨粉为猪骨、鸡骨按质量比7:5放入粉碎机中进行粉碎,过200目筛,收集过筛颗粒,即得骨粉。
分散剂为硬脂酸钠。
辅助剂为羟基磷酸钙、竹屑、钛酸四丁酯按质量比6:1:3混合而成。
添加剂为四丁基硫酸氢铵。
一种复合透水砖的制备方法,该制备方法包括如下步骤:
(1)取混合废渣、0.6mol/L盐酸溶液按质量比1:6搅拌混合30min,过滤,将滤渣、表面活性剂按质量比13:1放入球磨机中以600r/min进行球磨25min,收集球磨混合物;
(2)按重量份数计,取100份球磨混合物、80份水、40份海泥、23份动物骨粉、18份硝酸铁、11份辅助剂、12份分散剂、6份添加剂,将球磨混合物、水、海泥、动物骨粉混合均匀,收集混合物;
(3)将混合物、硝酸铁、辅助剂、分散剂及添加剂进行超声震荡70min,收集震荡混合物,放入制砖机中以8MPa进行挤压,得透水砖坯料;
(4)将透水砖坯料放入静置室中,在氢气和氮气气按摩尔比2:5混合成的混合气中静置15min,再放入窑炉中进行烧结,烧结温度为1200℃,冷却至室温,即得复合透水砖。
混合废渣为煤矸石、高炉渣按质量比4:5混合碾磨而成。
表面活性剂为十二烷基二甲基溴化铵。
动物骨粉为猪骨、鸡骨按质量比5:3放入粉碎机中进行粉碎,过200目筛,收集过筛颗粒,即得骨粉。
分散剂为硬脂酸镁。
辅助剂为羟基磷酸钙、竹屑、钛酸四丁酯按质量比5:1:3混合而成。
添加剂为环糊精。
一种复合透水砖的制备方法,该制备方法包括如下步骤:
(1)取混合废渣、0.6mol/L盐酸溶液按质量比1:5搅拌混合30min,过滤,将滤渣、表面活性剂按质量比12:1放入球磨机中以600r/min进行球磨25min,收集球磨混合物;
(2)按重量份数计,取95份球磨混合物、75份水、32份海泥、22份动物骨粉、17份硝酸铁、10份辅助剂、10份分散剂、5份添加剂,将球磨混合物、水、海泥、动物骨粉混合均匀,收集混合物;
(3)将混合物、硝酸铁、辅助剂、分散剂及添加剂进行超声震荡70min,收集震荡混合物,放入制砖机中以8MPa进行挤压,得透水砖坯料;
(4)将透水砖坯料放入静置室中,在氢气和氮气气按摩尔比2:5混合成的混合气中静置15min,再放入窑炉中进行烧结,烧结温度为1150℃,冷却至室温,即得复合透水砖。
混合废渣为煤矸石、高炉渣按质量比3:2混合碾磨而成。
表面活性剂为十二烷基硫酸钠。
动物骨粉为猪骨、鸡骨按质量比4:2放入粉碎机中进行粉碎,过200目筛,收集过筛颗粒,即得骨粉。
分散剂为硬脂酸镁。
辅助剂为羟基磷酸钙、竹屑、钛酸四丁酯按质量比3:1:3混合而成。
添加剂为四丁基硫酸氢铵。
一种复合透水砖的制备方法,该制备方法包括如下步骤:
(1)取混合废渣、0.6mol/L盐酸溶液按质量比1:4搅拌混合30min,过滤,将滤渣、表面活性剂按质量比10:1放入球磨机中以600r/min进行球磨25min,收集球磨混合物;
(2)按重量份数计,取90份球磨混合物、70份水、30份海泥、20份动物骨粉、15份硝酸铁、9份辅助剂、8份分散剂、3份添加剂,将球磨混合物、水、海泥、动物骨粉混合均匀,收集混合物;
(3)将混合物、硝酸铁、辅助剂、分散剂及添加剂进行超声震荡70min,收集震荡混合物,放入制砖机中以8MPa进行挤压,得透水砖坯料;
(4)将透水砖坯料放入静置室中,在氢气和氮气气按摩尔比2:5混合成的混合气中静置15min,再放入窑炉中进行烧结,烧结温度为1100℃,冷却至室温,即得复合透水砖。
对比例市售的透水砖。
透水砖空隙率测定将试件完全浸泡在清水中24h后,测试水中试件的质量(m1),然后把试件取出,在空气中干燥24h后测量其质量(m2),透水砖空隙率P(这里指开口总空隙率)可通过式P =[1-(m1-m2)/ρ·V] ×100% 计算,式中,V为试件的体积,cm3;ρ为水的密度,g/cm3;试件的质量用美国双杰电子秤JJ5000Y(量程5000g)测量,精确到0.1g;试件的尺寸采用游标卡尺测量,精确到1mm。
参考《透水砖》(JC/T945-2005)标准来测定透水砖的透水系数和抗压强度。
测试结果如表1
表1
7d抗压强度/MPa 透水系数/(mm·s-1 孔隙率/%
实施例1 56.3 5.78 33.3
实施例2 59.2 6.42 35.3
实施例3 58.4 5.83 32.4
对比例 28.3 1.73 19.6
综上可得,本发明的复合透水砖具有较好的透水效果。

Claims (7)

1.一种复合透水砖的制备方法,其特征在于,该制备方法包括如下步骤:
(1)取混合废渣、盐酸溶液按质量比1:4~6搅拌混合,过滤,将滤渣、表面活性剂按质量比10~13:1放入进行球磨,收集球磨混合物;
(2)按重量份数计,取90~100份球磨混合物、70~80份水、30~40份海泥、20~23份动物骨粉、15~18份硝酸铁、9~11份辅助剂、8~12份分散剂、3~6份添加剂,将球磨混合物、水、海泥、动物骨粉混合均匀,收集混合物;
(3)将混合物、硝酸铁、辅助剂、分散剂及添加剂进行超声震荡,收集震荡混合物,放入制砖机中进行挤压,得透水砖坯料;
(4)将透水砖坯料放入静置室中,在氢气和氮气气按摩尔比2:5混合成的混合气中静置,再放入窑炉中进行烧结,烧结温度为1100~1200℃,冷却至室温,即得复合透水砖。
2.根据权利要求1所述复合透水砖的制备方法,其特征在于,所述步骤(1)中混合废渣为煤矸石、高炉渣按质量比3~5:2~6混合碾磨而成。
3.根据权利要求1所述复合透水砖的制备方法,其特征在于,所述步骤(1)中表面活性剂为十二烷基硫酸钠、十二烷基二甲基溴化铵中的任意一种。
4.根据权利要求1所述复合透水砖的制备方法,其特征在于,所述动物骨粉为猪骨、鸡骨按质量比4~7:2~5放入粉碎机中进行粉碎,过筛,收集过筛颗粒,即得骨粉。
5.根据权利要求1所述复合透水砖的制备方法,其特征在于,所述分散剂为硬脂酸镁、硬脂酸钠中的任意一种。
6.根据权利要求1所述复合透水砖的制备方法,其特征在于,所述辅助剂为羟基磷酸钙、竹屑、钛酸四丁酯按质量比3~6:1:3混合而成。
7.根据权利要求1所述复合透水砖的制备方法,其特征在于,所述添加剂为四丁基硫酸氢铵、环糊精中任意一种。
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