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A platform for research: civil engineering, architecture and urbanism
Vertical anti-seepage isolation ecological barrier material for contaminated site and preparation method thereof
The invention relates to a vertical anti-seepage isolation ecological barrier material for a contaminated site and a preparation method thereof. The method comprises the steps: grinding a mixture of bentonite, kaolin and attapulgite and then dispersing in water, and thus obtaining first mixed slurry; adding sodium carbonate, sodium silicate and sodium dodecyl sulfate into the first mixed slurry, stirring and standing to obtain second mixed slurry; adding sodium hydroxide, sodium sulfate, magnesium oxide, calcium oxide and calcium sulfate into the second mixed slurry, and stirring to obtain third mixed slurry; grinding blast furnace slag, fly ash, red mud, mine tailings and ardealite, adding into the third mixed slurry, and stirring to obtain the vertical anti-seepage isolation ecological barrier material for the contaminated site. The potential gelatinization activity of industrial solid wastes is excited in a chemical manner, and the industrial solid wastes are fully hydrated in bentonite slurry. A compact consolidated body having small permeability coefficient and formed by cementitious hardening is simple to prepare, easy to prepare and use on a construction site, ecological, environment-friendly and low in cost.
本发明涉及一种污染场地用垂直防渗隔离生态屏障材料及其制备方法，方法包括将膨润土、高岭土和凹凸棒土的混合物粉磨后分散在水中，得到第一混合浆料；向第一混合浆料中加入碳酸钠、硅酸钠和十二烷基磺酸钠，搅拌后静置得到第二混合浆料；向第二混合浆料中加入氢氧化钠、硫酸钠、氧化镁、氧化钙和硫酸钙，搅拌后得到第三混合浆料；将高炉矿渣、粉煤灰、赤泥、矿山尾矿和磷石膏粉磨后加入第三混合浆料中，搅拌后得到污染场地用垂直防渗隔离生态屏障材料，采用化学方式激发工业固废潜在胶凝活性，使其在膨润土浆料中充分水化，胶凝硬化形成渗透系数小的密实固结体，制备简单，易于施工现场配制和使用，而且生态环保、成本低廉。
Vertical anti-seepage isolation ecological barrier material for contaminated site and preparation method thereof
The invention relates to a vertical anti-seepage isolation ecological barrier material for a contaminated site and a preparation method thereof. The method comprises the steps: grinding a mixture of bentonite, kaolin and attapulgite and then dispersing in water, and thus obtaining first mixed slurry; adding sodium carbonate, sodium silicate and sodium dodecyl sulfate into the first mixed slurry, stirring and standing to obtain second mixed slurry; adding sodium hydroxide, sodium sulfate, magnesium oxide, calcium oxide and calcium sulfate into the second mixed slurry, and stirring to obtain third mixed slurry; grinding blast furnace slag, fly ash, red mud, mine tailings and ardealite, adding into the third mixed slurry, and stirring to obtain the vertical anti-seepage isolation ecological barrier material for the contaminated site. The potential gelatinization activity of industrial solid wastes is excited in a chemical manner, and the industrial solid wastes are fully hydrated in bentonite slurry. A compact consolidated body having small permeability coefficient and formed by cementitious hardening is simple to prepare, easy to prepare and use on a construction site, ecological, environment-friendly and low in cost.
本发明涉及一种污染场地用垂直防渗隔离生态屏障材料及其制备方法，方法包括将膨润土、高岭土和凹凸棒土的混合物粉磨后分散在水中，得到第一混合浆料；向第一混合浆料中加入碳酸钠、硅酸钠和十二烷基磺酸钠，搅拌后静置得到第二混合浆料；向第二混合浆料中加入氢氧化钠、硫酸钠、氧化镁、氧化钙和硫酸钙，搅拌后得到第三混合浆料；将高炉矿渣、粉煤灰、赤泥、矿山尾矿和磷石膏粉磨后加入第三混合浆料中，搅拌后得到污染场地用垂直防渗隔离生态屏障材料，采用化学方式激发工业固废潜在胶凝活性，使其在膨润土浆料中充分水化，胶凝硬化形成渗透系数小的密实固结体，制备简单，易于施工现场配制和使用，而且生态环保、成本低廉。
Vertical anti-seepage isolation ecological barrier material for contaminated site and preparation method thereof
一种污染场地用垂直防渗隔离生态屏障材料及其制备方法
LI JIANGSHAN (author) / HUANG XIAO (author) / XUE QIANG (author) / CHEN XIN (author) / WANG LINLING (author) / DU YANJUN (author) / WANG SHUI (author)
2020-12-04
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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