CN106431355A - 一种新型陶瓷透水砖及其制备方法 - Google Patents
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Abstract
本发明属于建筑材料领域,具体涉及一种新型陶瓷透水砖及其制备方法;由以下按重量份计的原料组成:陶瓷废料55~65、水泥20~25、硅藻土8~14、沸石3~5、增稠剂3~5、粘结剂6~9、水100~115;本发明中,以陶瓷废料为原料,减轻了工业废料对环境造成的污染,对原料的颗粒度进行控制,有效的保证了其良好的透水性能,另一方面,由于陶瓷废料的可塑性能较低,在配料过程中加入了合理配比的增稠剂和粘结剂,使得原料各组分之间有效的结合,提高紧实度和强度,有效的改善了透水砖的品质。
Description
技术领域
本发明属于建筑材料领域,具体涉及一种新型陶瓷透水砖及其制备方法。
背景技术
陶瓷透水砖,是以固体工业废料、生活垃圾和建筑垃圾为主要原料,通过粉碎、成形、高温炼制而成的具有透水砖的性能、符合透水砖标准的建筑装饰材料,陶瓷透水砖具有很多其他陶瓷砖所不具有的特性:①高透水性;②陶瓷透水砖的主要原料是工业废料,所以其生产减轻了工业废料对环境造成的污染;③高透水性生态陶瓷砖主要以工业固体废物为原料,且该砖的装饰效果特别好,所以它必然会代替其他类似的建筑材料,从而节约了其他工业原材料的使用,为节约资源作出贡献;④由于陶瓷透水砖使用的工业废料都经高温煅烧过,所以其烧制过程除燃料本身放出的气体外,很少产生有害气体,减轻了废气对环境的污染;⑤陶瓷透水砖孔隙率高,吸音效果好,有防止噪音污染的功能。另外,其表面摩擦系数大,行人行走轻松自如,从而消除行走时的疲劳感。
目前,节约用水与治理污染两大问题是关系到国计民生、可持续发展的重大问题,也是当前和今后相当长时间内需要重点研究和解决的重大课题,所以陶瓷透水砖作为兼有节水和治理污染双重功能的新型建筑装饰材料而备受关注。
研究表明,颗粒料的颗粒度、颗粒料和粉状料的组分配比,是主要影响透水砖透水率高低的的因素,具体表现在:颗粒料的颗粒度不同,透水砖透水性能不同,颗粒度大的,透水性能好;颗粒级配不同,透水性能和砖的强度、成形性能,烧成后的透水性能亦不相同;透水砖是由颗粒料与粉状料加水混合后成形、烧制而成的。颗粒料是骨架,是主料,而粉状料是辅料,它是由熔剂、成孔剂、粘结剂等成分组成,以上成分的合理搭配对成形性能、干燥性能、烧成性能及产品性能起着关键的作用,成孔剂主要是有机质类或碳酸盐类,成孔剂主要是为了提高产品的透水性,但成孔剂的加入量会降低产品的成形性能和干燥强度,有些成孔剂还会使产品产生黑芯等缺陷。
透水砖作为一种新的建筑装饰材料,由于透水砖优秀的环保性能,优良的使用性能和良好的装饰效果,在目前来说是研究的重点,但是,由于近年来对透水砖的热门研究,由于原料的选取、制备方法的多种多样以及没有注重上述的影响透水砖透水率高低的的因素,使得制备的产品透水砖质量参差不齐,部分透水砖透水率极低,严重影响了透水砖的有序发展,同时也使得消费者难以获取高质量的透水砖,所以,对传统透水砖的原料进行科学合理的优选,对制备方法提出科学合理的改进,以提高目前透水砖的品质,对建筑材料领域具有重要意义。
发明内容
本发明为解决上述技术问题,提供了一种新型陶瓷透水砖及其制备方法。
具体是通过以下技术方案来实现的:
一种新型陶瓷透水砖及其制备方法,由以下按重量份计的原料组成:陶瓷废料55~65、水泥20~25、硅藻土8~14、沸石3~5、增稠剂3~5、粘结剂6~9、水100~115。
所述的粘结剂,是将沥青、环氧树脂和碳酸钙按2~3∶1.5~2∶0.6~0.9的重量比混合。
所述的增稠剂,是将白炭黑、钠基膨润土、有机膨润土、凹凸棒石土、硅凝胶中的一种或几种。
其制备方法,包括以下步骤:
(1)将沥青、环氧树脂和碳酸钙按比例称取后,用蒸汽加热,混合搅匀,得粘结剂。
(2)将陶瓷废料破碎,研磨成颗粒,向研磨后的陶瓷废料中添加水泥、硅藻土、沸石、增稠剂、粘结剂,搅匀后得到混合物。
(3)将水加入上述混合物中,搅拌均匀,置于模具内,在0.7~0.9Mpa压制成型,获得初胚。
(4)从模具中倒出成型的初胚,将初胚在100~130℃的温度下干燥3~5h,而后先在600~800℃下焙烧2~2.5h,再将温度升至1000~1100℃焙烧90~130min。
优选地,由以下按重量份计的原料组成:陶瓷废料60、水泥23、硅藻土12、沸石4、增稠剂4、粘结剂8、水110。
进一步,所述的陶瓷废料,粒度为0.4~0.6mm。
进一步,所述的蒸汽加热,其温度为90~100℃。
综上所述,本发明的有益效果在于:本发明中,以陶瓷废料为原料,减轻了工业废料对环境造成的污染,对原料的颗粒度进行控制,有效的保证了其良好的透水性能,另一方面,由于陶瓷废料的可塑性能较低,在配料过程中加入了合理配比的增稠剂和粘结剂,使得原料各组分之间有效的结合,提高紧实度和强度,有效的改善了透水砖的品质,传统的透水砖通过成孔剂的加入来提高其透水率,虽然透水率得到明显的提高,但是成孔剂的加入会降低产品的成形性能和干燥强度,有些成孔剂还会使产品产生黑芯等缺陷,所以本发明用硅藻土和沸石,通过合理的配比,有效的提高了砖体的孔隙,达到增大透水率的目的。
本发明采用的粘结剂,是将沥青、环氧树脂和碳酸钙按合理的配比调配而成,其粘性较大,有效的将原料组成相互粘接在一起,烧结后,能提高砖体的抗压性。
在透水砖的初胚烧制过程中,采用变温的方法,有效的改善传统高温烧制的方法,通过变温,能有效的提高砖体的韧性和强度,同时,在二次变温过程中,相比传统方法温度较低,能耗少,通过二次变温操作,原料在烧结中,产生的气体,得以累积,使得砖体的气孔数量得到最大化的提升,进而使得透水砖的透水性能有所增强,并降低了透水砖的密度。
以下对制备的透水砖作进一步的说明:
外观:无缺棱掉角、无裂纹、颜色基本一致。
抗压强度:≥35Mpa。
耐磨性:磨坑长度≤29.5mm。
保水性:≥0.7g/cm2。
透水系数:≥1.0×10-2cm/s,为15℃时。
具体实施方式
下面对本发明的具体实施方式作进一步详细的说明,但本发明并不局限于这些实施方式,任何在本实施例基本精神上的改进或代替,仍属于本发明权利要求所要求保护的范围。
实施例1
一种新型陶瓷透水砖及其制备方法,由以下按重量份计的原料组成:陶瓷废料55kg、水泥20kg、硅藻土8kg、沸石3kg、增稠剂3kg、粘结剂6kg、水100kg。
所述的粘结剂,是将沥青、环氧树脂和碳酸钙按2∶1.5∶0.6的重量比混合。
其制备方法,包括以下步骤:
(1)将沥青、环氧树脂和碳酸钙按比例称取后,用蒸汽加热,混合搅匀,得粘结剂。
(2)将陶瓷废料破碎,研磨成颗粒,向研磨后的陶瓷废料中添加水泥、硅藻土、沸石、增稠剂、粘结剂,搅匀后得到混合物。
(3)将水加入上述混合物中,搅拌均匀,置于模具内,在0.7Mpa压制成型,获得初胚。
(4)从模具中倒出成型的初胚,将初胚在100℃的温度下干燥3h,而后先在600℃下焙烧2h,再将温度升至1000℃焙烧90min。
所述的陶瓷废料,粒度为0.4mm。
所述的蒸汽加热,其温度为90℃。
实施例2
一种新型陶瓷透水砖及其制备方法,由以下按重量份计的原料组成:陶瓷废料65kg、水泥25kg、硅藻土14kg、沸石5kg、增稠剂5kg、粘结剂9kg、水115kg。
所述的粘结剂,是将沥青、环氧树脂和碳酸钙按3∶2∶0.9的重量比混合。
其制备方法,包括以下步骤:
(1)将沥青、环氧树脂和碳酸钙按比例称取后,用蒸汽加热,混合搅匀,得粘结剂。
(2)将陶瓷废料破碎,研磨成颗粒,向研磨后的陶瓷废料中添加水泥、硅藻土、沸石、增稠剂、粘结剂,搅匀后得到混合物。
(3)将水加入上述混合物中,搅拌均匀,置于模具内,在0.9Mpa压制成型,获得初胚。
(4)从模具中倒出成型的初胚,将初胚在130℃的温度下干燥5h,而后先在800℃下焙烧2.5h,再将温度升至1100℃焙烧130min。
所述的陶瓷废料,粒度为0.6mm。
所述的蒸汽加热,其温度为100℃。
实施例3
一种新型陶瓷透水砖及其制备方法,由以下按重量份计的原料组成:陶瓷废料60kg、水泥23kg、硅藻土12kg、沸石4kg、增稠剂4kg、粘结剂8kg、水110kg。
所述的粘结剂,是将沥青、环氧树脂和碳酸钙按2.5∶1.8∶0.7的重量比混合。
其制备方法,包括以下步骤:
(1)将沥青、环氧树脂和碳酸钙按比例称取后,用蒸汽加热,混合搅匀,得粘结剂。
(2)将陶瓷废料破碎,研磨成颗粒,向研磨后的陶瓷废料中添加水泥、硅藻土、沸石、增稠剂、粘结剂,搅匀后得到混合物。
(3)将水加入上述混合物中,搅拌均匀,置于模具内,在0.8Mpa压制成型,获得初胚。
(4)从模具中倒出成型的初胚,将初胚在115℃的温度下干燥4h,而后先在700℃下焙烧2.2h,再将温度升至1050℃焙烧120min。
所述的陶瓷废料,粒度为0.5mm。
所述的蒸汽加热,其温度为95℃。
实施例4
一种新型陶瓷透水砖及其制备方法,由以下按重量份计的原料组成:陶瓷废料65kg、水泥20kg、硅藻土14kg、沸石3kg、增稠剂5kg、粘结剂9kg、水100kg。
所述的粘结剂,是将沥青、环氧树脂和碳酸钙按3∶1.5∶0.9的重量比混合。
其制备方法,包括以下步骤:
(1)将沥青、环氧树脂和碳酸钙按比例称取后,用蒸汽加热,混合搅匀,得粘结剂。
(2)将陶瓷废料破碎,研磨成颗粒,向研磨后的陶瓷废料中添加水泥、硅藻土、沸石、增稠剂、粘结剂,搅匀后得到混合物。
(3)将水加入上述混合物中,搅拌均匀,置于模具内,在0.9Mpa压制成型,获得初胚。
(4)从模具中倒出成型的初胚,将初胚在100℃的温度下干燥5h,而后先在600℃下焙烧2.5h,再将温度升至1100℃焙烧90min。
所述的陶瓷废料,粒度为0.6mm。
所述的蒸汽加热,其温度为100℃。
实施例5
一种新型陶瓷透水砖及其制备方法,由以下按重量份计的原料组成:陶瓷废料55kg、水泥20kg、硅藻土4kg、沸石3kg、增稠剂4kg、粘结剂8kg、水100kg。
所述的粘结剂,是将沥青、环氧树脂和碳酸钙按3∶1.5∶0.7的重量比混合。
其制备方法,包括以下步骤:
(1)将沥青、环氧树脂和碳酸钙按比例称取后,用蒸汽加热,混合搅匀,得粘结剂。
(2)将陶瓷废料破碎,研磨成颗粒,向研磨后的陶瓷废料中添加水泥、硅藻土、沸石、增稠剂、粘结剂,搅匀后得到混合物。
(3)将水加入上述混合物中,搅拌均匀,置于模具内,在0.9Mpa压制成型,获得初胚。
(4)从模具中倒出成型的初胚,将初胚在100℃的温度下干燥5h,而后先在800℃下焙烧2h,再将温度升至1100℃焙烧90min。
所述的陶瓷废料,粒度为0.6mm。
所述的蒸汽加热,其温度为95℃。
Claims (4)
1.一种新型陶瓷透水砖及其制备方法,其特征在于,由以下按重量份计的原料组成:陶瓷废料55~65、水泥20~25、硅藻土8~14、沸石3~5、增稠剂3~5、粘结剂6~9、水100~115;
所述的粘结剂,是将沥青、环氧树脂和碳酸钙按2~3∶1.5~2∶0.6~0.9的重量比混合;
所述的增稠剂,是将白炭黑、钠基膨润土、有机膨润土、凹凸棒石土、硅凝胶中的一种或几种;
其制备方法,包括以下步骤:
(1)将沥青、环氧树脂和碳酸钙按比例称取后,用蒸汽加热,混合搅匀,得粘结剂;
(2)将陶瓷废料破碎,研磨成颗粒,向研磨后的陶瓷废料中添加水泥、硅藻土、沸石、增稠剂、粘结剂,搅匀后得到混合物;
(3)将水加入上述混合物中,搅拌均匀,置于模具内,在0.7~0.9Mpa压制成型,获得初胚;
(4)从模具中倒出成型的初胚,将初胚在100~130℃的温度下干燥3~5h,而后先在600~800℃下焙烧2~2.5h,再将温度升至1000~1100℃焙烧90~130min。
2.如权利要求1所述的新型陶瓷透水砖及其制备方法,其特征在于,由以下按重量份计的原料组成:陶瓷废料60、水泥23、硅藻土12、沸石4、增稠剂4、粘结剂8、水110。
3.如权利要求1或2所述的新型陶瓷透水砖及其制备方法,其特征在于,所述的陶瓷废料,粒度为0.4~0.6mm。
4.如权利要求1所述的新型陶瓷透水砖及其制备方法,其特征在于,所述的蒸汽加热,其温度为90~100℃。
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