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A platform for research: civil engineering, architecture and urbanism
High-rheological-property geopolymer mortar and preparation method thereof
The invention discloses high-rheological-property geopolymer mortar and a preparation method thereof. The high-rheological-property geopolymer mortar is prepared from metakaolin, coal ash, an alkali activator, a water reducing agent, water, quartz sand, PVA powder, nano silicon dioxide, graphene, rubber powder and a surfactant. The preparation method comprises the following steps of: soaking rubber powder in a sodium hydroxide solution, and soaking the soaked rubber powder in an ethanol solution of a silane coupling agent to obtain modified rubber powder; heating and dissolving PVA in water, adding a surfactant, nano silicon dioxide and modified rubber powder, heating to obtain a mixture, and carrying out electrostatic spinning to obtain modified PVA fibers; taking metakaolin, fly ash andquartz sand, stirring, sequentially adding the alkali activator, graphene and modified PVA fibers while stirring, uniformly mixing, adding the water reducing agent, and continuing to uniformly stir toobtain the high-rheological-property geopolymer mortar. The geopolymer mortar prepared by the invention has good rheological property and mechanical property, and can meet the construction requirements.
本发明公开一种高流变性地聚合物砂浆及其制备方法，原料包括偏高岭土、粉煤灰、碱激发剂、减水剂、水、石英砂、PVA粉末、纳米二氧化硅、石墨烯、橡胶粉、表面活性剂；制备方法包括，取橡胶粉置于氢氧化钠溶液中浸泡后置于硅烷偶联剂的乙醇溶液中浸泡得改性胶粉；PVA置于水中加热溶解，加入表面活性剂和纳米二氧化硅，改性胶粉，加热得混合物，静电纺丝得改性PVA纤维；取偏高岭土、粉煤灰和石英砂搅拌，搅拌的情况下，依次加入碱激发剂、石墨烯以及改性PVA纤维，待混合均匀后加入减水剂，继续搅拌均匀即得高流变性地聚合物砂浆。本发明制备的地聚合物砂浆具有很好的流变性和力学性能，可满足施工要求。
High-rheological-property geopolymer mortar and preparation method thereof
The invention discloses high-rheological-property geopolymer mortar and a preparation method thereof. The high-rheological-property geopolymer mortar is prepared from metakaolin, coal ash, an alkali activator, a water reducing agent, water, quartz sand, PVA powder, nano silicon dioxide, graphene, rubber powder and a surfactant. The preparation method comprises the following steps of: soaking rubber powder in a sodium hydroxide solution, and soaking the soaked rubber powder in an ethanol solution of a silane coupling agent to obtain modified rubber powder; heating and dissolving PVA in water, adding a surfactant, nano silicon dioxide and modified rubber powder, heating to obtain a mixture, and carrying out electrostatic spinning to obtain modified PVA fibers; taking metakaolin, fly ash andquartz sand, stirring, sequentially adding the alkali activator, graphene and modified PVA fibers while stirring, uniformly mixing, adding the water reducing agent, and continuing to uniformly stir toobtain the high-rheological-property geopolymer mortar. The geopolymer mortar prepared by the invention has good rheological property and mechanical property, and can meet the construction requirements.
本发明公开一种高流变性地聚合物砂浆及其制备方法，原料包括偏高岭土、粉煤灰、碱激发剂、减水剂、水、石英砂、PVA粉末、纳米二氧化硅、石墨烯、橡胶粉、表面活性剂；制备方法包括，取橡胶粉置于氢氧化钠溶液中浸泡后置于硅烷偶联剂的乙醇溶液中浸泡得改性胶粉；PVA置于水中加热溶解，加入表面活性剂和纳米二氧化硅，改性胶粉，加热得混合物，静电纺丝得改性PVA纤维；取偏高岭土、粉煤灰和石英砂搅拌，搅拌的情况下，依次加入碱激发剂、石墨烯以及改性PVA纤维，待混合均匀后加入减水剂，继续搅拌均匀即得高流变性地聚合物砂浆。本发明制备的地聚合物砂浆具有很好的流变性和力学性能，可满足施工要求。
High-rheological-property geopolymer mortar and preparation method thereof
一种高流变性地聚合物砂浆及其制备方法
ZHANG PENG (author) / WANG KEXUN (author) / WANG JUAN (author) / LIU SUJUAN (author) / WANG HAN (author) / KOU LANTING (author) / SUN YAOWEN (author) / WANG CHEN (author) / FENG XIAOYANG (author)
2020-09-25
Patent
Electronic Resource
Chinese
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