CN105347732A - 一种抗冻耐久的树脂混凝土复合透水地砖 - Google Patents
一种抗冻耐久的树脂混凝土复合透水地砖 Download PDFInfo
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Abstract
本发明公开了一种抗冻耐久的树脂混凝土复合透水地砖,由下列重量份的原料制成:沙漠砂50-53、热塑性酚醛树脂4-5、乌洛托品0.6-0.7、硬脂酸钙0.2-0.22、水适量、标号为42.5的硅酸盐水泥42-45、粉煤灰5-6、水性聚氨酯乳液3-4、乙二醇2.5-3、羧甲基纤维素3-4、堇青石9-10、废陶瓷4-5、乙烯基三过氧化叔丁基硅烷0.8-1、石灰7-8、花岗岩碎渣100-110、棕榈纤维11-13、钼尾矿粉29-33。本发明在表层材料的制备中添加了堇青石、废陶瓷等成分,避免了混凝土材料的抗冻性差的缺陷;在底层混凝土材料的制备中,添加了乙二醇,具有优异的抗冻效果。
Description
技术领域
本发明涉及建筑材料技术领域,尤其涉及一种抗冻耐久的树脂混凝土复合透水地砖。
背景技术
随着城市化发展速度的加剧,城市地表正在逐步被建筑物和各种混凝土等阻水性材料所覆盖,不透水区域比例在大幅增高,部分地区其覆盖率已超过80%。由于城市的排水能力越来越差,许多城市一遇到暴雨,其路面雨水无法快速渗漏,很容易造成城市内涝。因此,为解决城市地表硬化问题,营造高质量的自然生活环境,维护城市生态平衡,绿色环保的新型建材产品-透水砖应运而生,并得到了快速发展。
目前,市场上常见的透水砖主要有混凝土透水砖、陶瓷透水砖、砂基透水砖等。而陶瓷透水砖常用的原料主要有多年期赤泥,黄金尾矿,粉煤灰,釉面陶瓷,混凝土等。而这些原料所制备的透水砖一般都需要经1000-1400℃的高温烧结,浪费化石燃料,并产生工业废气造成大气污染。砂基透水砖是近些年发展起来的新型透水砖,以沙漠中的风积沙为骨料。由于砂基透水砖面世才区区几年,大规模使用还没有形成,对其产生的效益更没有深入研究。沙漠中储藏着大量的风积沙资源,这些风积沙具有颗粒细小、含水率低的特点,为研制砂基透水砖提供了廉价的原材料。从研究的角度来看,开展砂基透水砖的研制和效益分析工作有利于完善我国透水砖研究体系,并起到促进砂基透水砖推广应用;从城市生态建设的角度来看,有利于推进城市雨水利用步伐,缓解城市水资源匮乏的局面;从沙漠化治理的角度来看,有利于缓解沙漠化,并带来巨大的社会经济和生态效益。由此可见,开展砂基透水砖的研究有重大的现实意义。
发明内容
本发明目的就是为了弥补已有技术的缺陷,提供一种抗冻耐久的树脂混凝土复合透水地砖。
本发明是通过以下技术方案实现的:
一种抗冻耐久的树脂混凝土复合透水地砖,由下列重量份的原料制成:沙漠砂50-53、热塑性酚醛树脂4-5、乌洛托品0.6-0.7、硬脂酸钙0.2-0.22、水适量、标号为42.5的硅酸盐水泥42-45、粉煤灰5-6、水性聚氨酯乳液3-4、乙二醇2.5-3、羧甲基纤维素3-4、堇青石9-10、废陶瓷4-5、乙烯基三过氧化叔丁基硅烷0.8-1、石灰7-8、花岗岩碎渣100-110、棕榈纤维11-13、钼尾矿粉29-33。
所述一种抗冻耐久的树脂混凝土复合透水地砖,由以下具体步骤制成:
(1)将沙漠砂水洗后烘干得到烘干砂,将烘干砂放入沸腾炉内,加热使得烘干砂的温度上升至160℃,然后转移烘干砂至混砂机中,保持恒温160℃,在混碾的同时缓慢加入热塑性酚醛树脂,混碾80秒后缓慢加入溶于10倍量水的乌洛托品,继续混碾60秒,之后吹入冷风冷却至100℃时均匀地加入硬脂酸钙,混和30秒,出砂到破碎机中,风冷至35℃时破碎,过30目筛,得到覆膜沙漠砂;
(2)将废陶瓷粉碎,过50目筛待用;将堇青石粉碎,过100目筛待用;将两种粉末混合,加入乙烯基三过氧化叔丁基硅烷,以300转/分的速度搅拌30分钟后送入混料机中,加入步骤(1)得到的覆膜沙漠砂、水性聚氨酯乳液,以600转/分的速度搅拌20分钟,得到表层材料;
(3)将乙二醇加入8倍量的水中,边搅拌边加热至40℃形成乙二醇热溶液待用;将花岗岩碎渣破碎,得到3毫米左右的粉末,棕榈纤维粉碎成3毫米的小段,然后将二者浸入水中浸泡1小时,过滤后取出得到混合湿料;将混合湿料送入搅拌机中,加入乙二醇热溶液、标号为42.5的硅酸盐水泥,以800转/分的速度搅拌10分钟后加入其余剩余成分以及总量10%的水继续搅拌20分钟,得到底层材料;
(4)将底层材料倒入模具中,振实底层材料并修平表面,再把表层材料倒入模具中,振实后在3MPa的压力下压制15分钟后,在25℃下恒温干燥48小时,脱模后将砖体放入混凝土标准养护箱中按要求养护21天即得。
本发明的优点是:本发明首先对烘干砂进行包覆热塑性酚醛树脂处理,得到覆膜沙漠砂,配合粘合剂等成分制成表层材料,赋予透水砖表层微小的透水孔,改善了混凝土砖体的大孔易被泥浆堵塞的缺点,也增强了美观性;配合底层混凝土材料的应用,提高了砖体的强度以及透水性,而且不仅降低了生产成本,还解决了治理风沙的环保目的。
本发明在表层材料的制备中添加了堇青石、废陶瓷等成分,避免了混凝土材料的抗冻性差的缺陷;在底层混凝土材料的制备中,添加了乙二醇,具有优异的抗冻效果;本发明制成的双层复合砖具有优异的抗冻性、透水性、耐磨耐用,使用寿命长,而且工艺便于控制,原料简单易得,可供北方城市路面使用。
具体实施方式
一种抗冻耐久的树脂混凝土复合透水地砖,由下列重量份(公斤)的原料制成:沙漠砂50、热塑性酚醛树脂4、乌洛托品0.6、硬脂酸钙0.2、水适量、标号为42.5的硅酸盐水泥42、粉煤灰5、水性聚氨酯乳液3、乙二醇2.5、羧甲基纤维素3、堇青石9、废陶瓷4、乙烯基三过氧化叔丁基硅烷0.8、石灰7、花岗岩碎渣100、棕榈纤维11、钼尾矿粉29。
所述一种抗冻耐久的树脂混凝土复合透水地砖,由以下具体步骤制成:
(1)将沙漠砂水洗后烘干得到烘干砂,将烘干砂放入沸腾炉内,加热使得烘干砂的温度上升至160℃,然后转移烘干砂至混砂机中,保持恒温160℃,在混碾的同时缓慢加入热塑性酚醛树脂,混碾80秒后缓慢加入溶于10倍量水的乌洛托品,继续混碾60秒,之后吹入冷风冷却至100℃时均匀地加入硬脂酸钙,混和30秒,出砂到破碎机中,风冷至35℃时破碎,过30目筛,得到覆膜沙漠砂;
(2)将废陶瓷粉碎,过50目筛待用;将堇青石粉碎,过100目筛待用;将两种粉末混合,加入乙烯基三过氧化叔丁基硅烷,以300转/分的速度搅拌30分钟后送入混料机中,加入步骤(1)得到的覆膜沙漠砂、水性聚氨酯乳液,以600转/分的速度搅拌20分钟,得到表层材料;
(3)将乙二醇加入8倍量的水中,边搅拌边加热至40℃形成乙二醇热溶液待用;将花岗岩碎渣破碎,得到3毫米左右的粉末,棕榈纤维粉碎成3毫米的小段,然后将二者浸入水中浸泡1小时,过滤后取出得到混合湿料;将混合湿料送入搅拌机中,加入乙二醇热溶液、标号为42.5的硅酸盐水泥,以800转/分的速度搅拌10分钟后加入其余剩余成分以及总量10%的水继续搅拌20分钟,得到底层材料;
(4)将底层材料倒入模具中,振实底层材料并修平表面,再把表层材料倒入模具中,振实后在3MPa的压力下压制15分钟后,在25℃下恒温干燥48小时,脱模后将砖体放入混凝土标准养护箱中按要求养护21天即得。
对本发明实施例制成的透水地砖进行各项性能测试,保水性大于0.6g/cm2,透水系数为2.94×10-2cm/s,抗弯强度为46.9MPa,25次冻融循环抗压强度损失小于20%,符合行业标准。
Claims (2)
1.一种抗冻耐久的树脂混凝土复合透水地砖,其特征在于,由下列重量份的原料制成:沙漠砂50-53、热塑性酚醛树脂4-5、乌洛托品0.6-0.7、硬脂酸钙0.2-0.22、水适量、标号为42.5的硅酸盐水泥42-45、粉煤灰5-6、水性聚氨酯乳液3-4、乙二醇2.5-3、羧甲基纤维素3-4、堇青石9-10、废陶瓷4-5、乙烯基三过氧化叔丁基硅烷0.8-1、石灰7-8、花岗岩碎渣100-110、棕榈纤维11-13、钼尾矿粉29-33。
2.根据权利要求1所述一种抗冻耐久的树脂混凝土复合透水地砖,其特征在于,由以下具体步骤制成:
(1)将沙漠砂水洗后烘干得到烘干砂,将烘干砂放入沸腾炉内,加热使得烘干砂的温度上升至160℃,然后转移烘干砂至混砂机中,保持恒温160℃,在混碾的同时缓慢加入热塑性酚醛树脂,混碾80秒后缓慢加入溶于10倍量水的乌洛托品,继续混碾60秒,之后吹入冷风冷却至100℃时均匀地加入硬脂酸钙,混和30秒,出砂到破碎机中,风冷至35℃时破碎,过30目筛,得到覆膜沙漠砂;
(2)将废陶瓷粉碎,过50目筛待用;将堇青石粉碎,过100目筛待用;将两种粉末混合,加入乙烯基三过氧化叔丁基硅烷,以300转/分的速度搅拌30分钟后送入混料机中,加入步骤(1)得到的覆膜沙漠砂、水性聚氨酯乳液,以600转/分的速度搅拌20分钟,得到表层材料;
(3)将乙二醇加入8倍量的水中,边搅拌边加热至40℃形成乙二醇热溶液待用;将花岗岩碎渣破碎,得到3毫米左右的粉末,棕榈纤维粉碎成3毫米的小段,然后将二者浸入水中浸泡1小时,过滤后取出得到混合湿料;将混合湿料送入搅拌机中,加入乙二醇热溶液、标号为42.5的硅酸盐水泥,以800转/分的速度搅拌10分钟后加入其余剩余成分以及总量10%的水继续搅拌20分钟,得到底层材料;
(4)将底层材料倒入模具中,振实底层材料并修平表面,再把表层材料倒入模具中,振实后在3MPa的压力下压制15分钟后,在25℃下恒温干燥48小时,脱模后将砖体放入混凝土标准养护箱中按要求养护21天即得。
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