A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-durability geopolymer mortar and preparation method thereof
The invention discloses high-durability geopolymer mortar and a preparation method thereof. The geopolymer mortar is prepared from the following raw materials: water, metakaolin, fly ash, quartz sand,an alkali activator, PVA, graphite, microcrystalline cellulose, organic acid, a surfactant, nano SiO2 and a water reducing agent. The preparation method comprises the following steps of: dispersing the organic acid and the microcrystalline cellulose in water under an ultrasonic condition, uniformly stirring, and adding the graphene, the water reducing agent and the mixed solution A; heating and dissolving PVA in water, adding a surfactant and nano SiO2, carrying out electrostatic spinning to obtain modified PVA fibers; taking metakaolin, fly ash and quartz sand in a stirrer and stirring, adding the alkali activator and the mixed solution A, and adding the modified PVA fibers in batches to obtain the high-durability geopolymer mortar. The high-durability geopolymer mortar provided by the invention overcomes the technical problem of loose structure caused by overlarge fiber addition amount in the prior art, and the durability of the high-durability geopolymer mortar is significantly improved.
本发明公开一种高耐久性地聚合物砂浆及其制备方法，所述地聚合物砂浆原料包括：水、偏高岭土、粉煤灰、石英砂、碱激发剂、PVA、石墨、微晶纤维素、有机酸、表面活性剂、纳米SiO、减水剂。制备方法包括超声条件下将有机酸、微晶纤维素分散于水中，搅拌均匀后加石墨烯、减水剂，混合液A；取PVA水中加热溶解，加入表面活性剂和纳米SiO，进行静电纺丝得改性PVA纤维；取偏高岭土、粉煤灰和石英砂在搅拌机中搅拌，加碱激发剂、混合液A，分次加入改性PVA纤维，即得高耐久性地聚合物砂浆；本发明所述高耐久性地聚合物砂浆克服了现有技术中纤维添加量过大导致结构疏松的技术问题，显著提高了高耐久性地聚合物砂浆的耐久性能。
High-durability geopolymer mortar and preparation method thereof
The invention discloses high-durability geopolymer mortar and a preparation method thereof. The geopolymer mortar is prepared from the following raw materials: water, metakaolin, fly ash, quartz sand,an alkali activator, PVA, graphite, microcrystalline cellulose, organic acid, a surfactant, nano SiO2 and a water reducing agent. The preparation method comprises the following steps of: dispersing the organic acid and the microcrystalline cellulose in water under an ultrasonic condition, uniformly stirring, and adding the graphene, the water reducing agent and the mixed solution A; heating and dissolving PVA in water, adding a surfactant and nano SiO2, carrying out electrostatic spinning to obtain modified PVA fibers; taking metakaolin, fly ash and quartz sand in a stirrer and stirring, adding the alkali activator and the mixed solution A, and adding the modified PVA fibers in batches to obtain the high-durability geopolymer mortar. The high-durability geopolymer mortar provided by the invention overcomes the technical problem of loose structure caused by overlarge fiber addition amount in the prior art, and the durability of the high-durability geopolymer mortar is significantly improved.
本发明公开一种高耐久性地聚合物砂浆及其制备方法，所述地聚合物砂浆原料包括：水、偏高岭土、粉煤灰、石英砂、碱激发剂、PVA、石墨、微晶纤维素、有机酸、表面活性剂、纳米SiO、减水剂。制备方法包括超声条件下将有机酸、微晶纤维素分散于水中，搅拌均匀后加石墨烯、减水剂，混合液A；取PVA水中加热溶解，加入表面活性剂和纳米SiO，进行静电纺丝得改性PVA纤维；取偏高岭土、粉煤灰和石英砂在搅拌机中搅拌，加碱激发剂、混合液A，分次加入改性PVA纤维，即得高耐久性地聚合物砂浆；本发明所述高耐久性地聚合物砂浆克服了现有技术中纤维添加量过大导致结构疏松的技术问题，显著提高了高耐久性地聚合物砂浆的耐久性能。
High-durability geopolymer mortar and preparation method thereof
一种高耐久性地聚合物砂浆及其制备方法
ZHANG PENG (author) / WEI HUA (author) / WANG JUAN (author) / KANG LUOYI (author) / WANG WANCHENG (author) / KOU LANTING (author) / SUN YAOWEN (author) / WANG CHEN (author) / FENG XIAOYANG (author)
2020-09-25
Patent
Electronic Resource
Chinese
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