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Bentonite mixed soil and construction method thereof
The invention discloses bentonite mixed soil, which is prepared from the following components in parts by weight: 100 parts of sand, and 10-15 parts of sodium bentonite, wherein the particle size distribution of the sand ranges from 0.0075 mm to 53 mm, a material containing little electrolyte needs to be adopted as a sandy system material, a sand material with good construction performance duringdrying and rolling needs to be adopted as a material containing little electrolyte, the sand density is larger than 2.6 g/cm<3>, the expansion value of the sodium bentonite is greater than 20 ml/2 g,and the test water permeability of the sodium bentonite and cement is less than 8%. According to the invention, sand and bentonite are mixed to obtain bentonite mixed soil; gaps among sand layers arefilled by utilizing the characteristic that bentonite expands when meeting water, so that a water permeable system is obviously reduced; and the bentonite mixed soil has the advantages that the resources are reasonably matched, the market blank of high cost and low technical content of the current anti-seepage and anti-leakage engineering is filled up, the livelihood healthy drinking water and soil pollution are ensured to meet the requirements of national long-term livelihood life, and social contribution is made to livelihood garbage landfill and land pollution treatment.
本发明公开一种膨润土混合土,按重量份计,由如下成份组成:砂:100份钠基膨润土:10‑15份;所述砂的粒度分布为0.0075mm~53mm,采用砂质系的材料需采用含电解质少的材料需采用在干燥、滚压时施工性能良好的砂材料,砂密度大于2.6 g/cm;所述钠基膨润土的膨胀值大于20 ml/2g,与水泥试验渗水率小于8%。本发明用砂与膨润土混合得到膨润土混合土,利用膨润土遇水膨胀的特性弥补砂粒层间缝隙而达到透水系统明显减小,合理搭配资源,弥补当前防渗防漏工程高成本、低技术含量的市场空白,保障了民生健康饮水及土壤污染符合国家长久民生生活的需要,为涉及民生的垃圾填埋及土地污染治理做出社会贡献。
Bentonite mixed soil and construction method thereof
The invention discloses bentonite mixed soil, which is prepared from the following components in parts by weight: 100 parts of sand, and 10-15 parts of sodium bentonite, wherein the particle size distribution of the sand ranges from 0.0075 mm to 53 mm, a material containing little electrolyte needs to be adopted as a sandy system material, a sand material with good construction performance duringdrying and rolling needs to be adopted as a material containing little electrolyte, the sand density is larger than 2.6 g/cm<3>, the expansion value of the sodium bentonite is greater than 20 ml/2 g,and the test water permeability of the sodium bentonite and cement is less than 8%. According to the invention, sand and bentonite are mixed to obtain bentonite mixed soil; gaps among sand layers arefilled by utilizing the characteristic that bentonite expands when meeting water, so that a water permeable system is obviously reduced; and the bentonite mixed soil has the advantages that the resources are reasonably matched, the market blank of high cost and low technical content of the current anti-seepage and anti-leakage engineering is filled up, the livelihood healthy drinking water and soil pollution are ensured to meet the requirements of national long-term livelihood life, and social contribution is made to livelihood garbage landfill and land pollution treatment.
本发明公开一种膨润土混合土,按重量份计,由如下成份组成:砂:100份钠基膨润土:10‑15份;所述砂的粒度分布为0.0075mm~53mm,采用砂质系的材料需采用含电解质少的材料需采用在干燥、滚压时施工性能良好的砂材料,砂密度大于2.6 g/cm;所述钠基膨润土的膨胀值大于20 ml/2g,与水泥试验渗水率小于8%。本发明用砂与膨润土混合得到膨润土混合土,利用膨润土遇水膨胀的特性弥补砂粒层间缝隙而达到透水系统明显减小,合理搭配资源,弥补当前防渗防漏工程高成本、低技术含量的市场空白,保障了民生健康饮水及土壤污染符合国家长久民生生活的需要,为涉及民生的垃圾填埋及土地污染治理做出社会贡献。
Bentonite mixed soil and construction method thereof
一种膨润土混合土及其施工方法
PANG LIYAN (author) / LI HE (author)
2020-07-03
Patent
Electronic Resource
Chinese
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