CN114751690A - 一种道路用透水型生态混凝土及其制备方法 - Google Patents
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Abstract
本发明涉及一种道路用透水型生态混凝土及其制作方法,按重量份数计,原料包括骨料1500~1700份、掺合料30~60份,水泥340~400份、橡胶碎片0~50份、水100~120份、增强剂13~17份,所述骨料天然天然集料和轻骨料,所述天然集料为石子,并按照颗粒大小包括小石300~340份、中石1200~1350份,轻骨料为陶粒0~100份;具体步骤包括准备原材料、干料混合、加水一次搅拌、加增强剂搅拌、加水二次搅拌;本发明具有如下优点:本发明采用少量小石与大量中石配合保证混凝土的强度与透水性,加入橡胶碎片,从而增强其抗折强度;橡胶碎片采用废物回收的轮胎碎片,掺合料采用硅灰、粉煤灰或矿渣微细粉,使废料二次利用,节能环保;陶粒透水性好方便调节混凝土的透水性。
Description
技术领域
本发明涉及混凝土技术领域,具体是指一种道路用透水型生态混凝土及其制备方法。
背景技术
透水混凝土是一种针对现有城市路面缺陷,开发使用的一种优良道路铺装材料。透水混凝土能让雨水流入地下,有效补充地下水,缓解城市地下水位急剧下降等城市环境问题,并能有效消除地面上的油类化合物对环境的危害,同时具有保护地下水,维护生态平衡,缓解城市热岛效应等功能。其性能特点为具有多孔、透水性好、具有一定的强度并可承受适当的荷载,但是由于透水混凝土的多孔结构,降低了其力学强度,抗压强度抗折强度较低,导致铺装的道路很容易被车辆压坏,变的坑坑洼洼,严重影响城市形象。
发明内容
本发明要解决的技术问题是:提供一种道路用透水型生态混凝土及其制备方法。
为解决上述技术问题,本发明提供的技术方案为:一种道路用透水型生态混凝土,按重量份数计,原料包括骨料1500~1700份、掺合料30~60份,水泥340~400份、橡胶碎片0~50份、水100~120份、增强剂13~17份,所述骨料包括天然天然集料和轻骨料,所述天然集料为石子,并按照颗粒大小包括小石300~340份、中石1200~1350份,轻骨料为陶粒0~100份。
作为优选,橡胶碎片采用废物回收的轮胎碎片。
作为优选,所述掺合料采用硅灰、粉煤灰或矿渣微细粉。
作为优选,所述小石粒径为5~10mm,中石粒径为10~20mm,陶粒粒径为10~15mm。
作为优选,原料包括小石300份,中石1300份,掺合料40份,水泥350份,橡胶碎片30份,水105份,增强剂15份。
作为优选,原料包括小石400份,中石1200份,陶粒100份,掺合料50份,水泥360份,橡胶碎片20份,水110份,增强剂15份。
一种道路用透水型生态混凝土的制作方法,具体步骤如下:
步骤1、准备原材料:按照需要准备合适重量的原材料,测试骨料含泥量在1%以下,否则需要重新洗料;
步骤2、干料混合:将水泥、掺合料、骨料和橡胶碎片,加入搅拌装置进行初步混合,至混合均匀;
步骤3、加水一次搅拌:向混合好的干料中加入一半的水,搅拌0.5~1分钟;
步骤4、加增强剂搅拌:向步骤3中得到的湿料中加入增强剂继续搅拌1~2分钟;
步骤5、加水二次搅拌:向步骤4中得到的湿料中加入剩余的水,继续搅拌2分钟,至混合均匀,骨料表面均匀包裹有水泥胶浆。
作为优选,步骤1中准备的陶粒要事先浸泡在水中使其吸水饱和,然后晾干至表面干燥内部吸水饱和。
作为优选,步骤3与步骤5中通过喷淋装置喷水加入,边搅拌边加水。
本发明具有如下优点:本发明采用少量小石与大量中石配合,并加入橡胶碎片,保证混凝土的强度与透水性的同时增强透水混凝土的抗折强度,从而使铺装的道路承载力更高,且在车辆经过后能够迅速恢复,避免车辆将路面压的坑坑洼洼;橡胶碎片采用废物回收的轮胎碎片,掺合料采用硅灰、粉煤灰或矿渣微细粉,使废料二次利用,充分体现节能环保理念;陶粒透水性好利于调节混凝土的透水性,在制作混凝土时先将干料进行初步混合,然后分多次加入加水和增强剂搅拌,混合更均匀,使骨料表面均匀包裹水泥胶浆,保证透水混凝土的强度质量;由于陶粒吸水率比较高,为了防止陶粒在搅拌时出现吸收拌和用水等情况,先对陶粒进行浸泡、晾晒。
具体实施方式
下面结合实施例对本发明做进一步的详细说明。
实施例1
一种道路用透水型生态混凝土,原料包括小石300份,中石1300份,掺合料40份,水泥350份,橡胶碎片30份,水105份,增强剂15份。
一种道路用透水型生态混凝土的制作方法,具体步骤如下:
步骤1:按照需要准备合适重量的原材料,测试骨料含泥量在1%以下,否则需要重新洗料;
步骤2、干料混合:将水泥350份、掺合料40份、小石300份、中石1300份和橡胶碎片30份,加入搅拌装置进行初步混合,至混合均匀;
步骤3、加水一次搅拌:向混合好的干料中加入一半的水50份,搅拌0.5分钟;
步骤4、加增强剂搅拌:向步骤3中得到的湿料中加入增强剂15份,继续搅拌1.5分钟;
步骤5、加水二次搅拌:向步骤4中得到的湿料中加入剩余的水55份,继续搅拌2分钟,至混合均匀,骨料表面均匀包裹有水泥胶浆。
实施例2
一种道路用透水型生态混凝土,原料包括小石400份,中石1200份,陶粒100份,掺合料50份,水泥360份,橡胶碎片20份,水110份,增强剂15份。
一种道路用透水型生态混凝土的制作方法,具体步骤如下:
步骤1:按照需要准备合适重量的原材料,测试骨料含泥量在1%以下,否则需要重新洗料;
步骤2、干料混合:将水泥360份、掺合料50份、小石400份、中石1200份、陶粒100份和橡胶碎片20份,加入搅拌装置进行初步混合,至混合均匀;
步骤3、加水一次搅拌:向混合好的干料中加入一半的水55份,搅拌40秒;
步骤4、加增强剂搅拌:向步骤3中得到的湿料中加入增强剂15份,继续搅拌2分钟;
步骤5、加水二次搅拌:向步骤4中得到的湿料中加入剩余的水55份,继续搅拌2分钟,至混合均匀,骨料表面均匀包裹有水泥胶浆。
石子:
骨料的颗粒度大小是偷水混凝土的关键,骨料颗粒度过大,则透水性更好,但是透水性混凝土的强度随之降低,骨料颗粒度过小,透水性混凝土的强度增加但是后水性随之变低,上述两个实施例中均采用小石加中石二级配,技术指标如表1所示:
表1碎石的技术指标
水泥:
水泥的强度等级是水泥强度大小的标志,测定指标为水泥的抗压强度,检测标准主要为水泥砂浆硬结28d后的强度。例如检测得到28d后的抗压强度为42.5MPa,则水泥的强度等级定为42.5级或42.5R级。水泥有:32.5、32.5R、42.5、42.5R、52.5、52.5R、62.5、62.5R八种强度等级。强度等级带R表示该水泥为早强水泥。强度等级32.5、32.5R的可用于一些房屋建筑。强度等级42.5以上的可用于建筑较大的桥梁或厂房,以及一些重要路面和制造预制构件,上述两个实施例中采用P·O42.5号水泥,具体指标如表2所示:
表2水泥的技术指标
陶粒:
陶粒粒径为10~15mm。
掺和料:
采用硅灰、粉煤灰或矿渣微细粉。
橡胶碎片:
采用废物回收的轮胎或其他橡胶制品的碎片。
增强剂:
增强剂为透水混凝土专用SR型增强剂。
水:
普通干净的水即可,如河水、自来水等。
虽然,上文中已经用一般性说明及具体实施方案对本发明作了详尽的描述,但在本发明基础上,可以对之作一些修改或改进,这对本领域技术人员而言是显而易见的。因此,在不偏离本发明精神的基础上所做的这些修改或改进,均属于本发明要求保护的范围。
Claims (9)
1.一种道路用透水型生态混凝土,其特征在于:按重量份数计,原料包括骨料1500~1700份、掺合料30~60份,水泥340~400份、橡胶碎片0~50份、水100~120份、增强剂13~17份,所述骨料包括天然天然集料和轻骨料,所述天然集料为石子,并按照颗粒大小包括小石300~340份、中石1200~1350份,轻骨料为陶粒0~100份。
2.根据权利要求1所述的一种道路用透水型生态混凝土,其特征在于:橡胶碎片采用废物回收的轮胎碎片。
3.根据权利要求1所述的一种道路用透水型生态混凝土,其特征在于:所述掺合料采用硅灰、粉煤灰或矿渣微细粉。
4.根据权利要求1所述的一种道路用透水型生态混凝土,其特征在于:所述小石粒径为5~10mm,中石粒径为10~20mm,陶粒粒径为10~15mm。
5.根据权利要求1所述的一种道路用透水型生态混凝土,其特征在于:其原料包括小石300份,中石1300份,掺合料40份,水泥350份,橡胶碎片30份,水105份,增强剂15份。
6.根据权利要求1所述的一种道路用透水型生态混凝土,其特征在于:其原料包括小石400份,中石1200份,陶粒100份,掺合料50份,水泥360份,橡胶碎片20份,水110份,增强剂15份。
7.一种道路用透水型生态混凝土的制作方法,其特征在于:具体步骤如下:
步骤1、准备原材料:按照需要准备合适重量的原材料,测试骨料含泥量在1%以下,否则需要重新洗料;
步骤2、干料混合:将水泥、掺合料、骨料和橡胶碎片,加入搅拌装置进行初步混合,至混合均匀;
步骤3、加水一次搅拌:向混合好的干料中加入一半的水,搅拌0.5~1分钟;
步骤4、加增强剂搅拌:向步骤3中得到的湿料中加入增强剂继续搅拌1~2分钟;
步骤5、加水二次搅拌:向步骤4中得到的湿料中加入剩余的水,继续搅拌2分钟,至混合均匀,骨料表面均匀包裹有水泥胶浆。
8.根据权利要求6所述的一种道路用透水型生态混凝土的制作方法,其特征在于:步骤1中准备的陶粒要事先浸泡在水中使其吸水饱和,然后晾干至表面干燥内部吸水饱和。
9.根据权利要求6所述的一种道路用透水型生态混凝土的制作方法,其特征在于:步骤3与步骤5中通过喷淋装置喷水加入,边搅拌边加水。
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