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High-strength geopolymer mortar containing low-quality silica fume and preparation method thereof
The invention relates to high-strength geopolymer mortar containing low-quality silica fume and a preparation method of the high-strength geopolymer mortar, and belongs to the technical field of geopolymer mortar. In order to solve the problem of low compressive strength of geopolymer mortar containing low-quality silica fume, the invention provides high-strength geopolymer mortar containing low-quality silica fume, the high-strength geopolymer mortar containing low-quality silica fume comprises the following components: a gel material, an aggregate, a micro aggregate and an alkali activator, the gel material comprises low-calcium fly ash, calcium aluminate cement, low-quality silica fume and nano-silica, and the micro aggregate is an alkali activator. The aggregate comprises quartz sand, the micro aggregate comprises steel fibers, and the alkali activator comprises solid sodium hydroxide, a water glass solution and tap water. By utilizing the synergistic effect of the low-quality silica fume and the nano-silica, the content of active silica in the whole system is increased, and the compressive strength of the coal ash geopolymer mortar is well enhanced, so that the compressive strength of the geopolymer mortar containing the low-quality silica fume reaches 80.4 MPa.
本发明涉及一种含有低品质硅灰的高强地聚物砂浆及其制备方法，属于地聚物砂浆技术领域。为解决含有低品质硅灰的地聚物砂浆抗压强度低的问题，本发明提供了一种含有低品质硅灰的高强地聚物砂浆，组分包括凝胶材料、骨料、微集料和碱激发剂，凝胶材料包括低钙粉煤灰、铝酸钙水泥、低品质硅灰和纳米二氧化硅，骨料包括石英砂，微集料包括钢纤维，碱激发剂包括固体氢氧化钠、水玻璃溶液和自来水。本发明利用低品质硅灰与纳米二氧化硅的协同作用，增加了整体体系的活性二氧化硅含量，对粉煤灰地聚物砂浆的抗压强度起到良好的增强作用，使含有低品质硅灰的地聚物砂浆的抗压强度达到80.4MPa。
High-strength geopolymer mortar containing low-quality silica fume and preparation method thereof
The invention relates to high-strength geopolymer mortar containing low-quality silica fume and a preparation method of the high-strength geopolymer mortar, and belongs to the technical field of geopolymer mortar. In order to solve the problem of low compressive strength of geopolymer mortar containing low-quality silica fume, the invention provides high-strength geopolymer mortar containing low-quality silica fume, the high-strength geopolymer mortar containing low-quality silica fume comprises the following components: a gel material, an aggregate, a micro aggregate and an alkali activator, the gel material comprises low-calcium fly ash, calcium aluminate cement, low-quality silica fume and nano-silica, and the micro aggregate is an alkali activator. The aggregate comprises quartz sand, the micro aggregate comprises steel fibers, and the alkali activator comprises solid sodium hydroxide, a water glass solution and tap water. By utilizing the synergistic effect of the low-quality silica fume and the nano-silica, the content of active silica in the whole system is increased, and the compressive strength of the coal ash geopolymer mortar is well enhanced, so that the compressive strength of the geopolymer mortar containing the low-quality silica fume reaches 80.4 MPa.
本发明涉及一种含有低品质硅灰的高强地聚物砂浆及其制备方法，属于地聚物砂浆技术领域。为解决含有低品质硅灰的地聚物砂浆抗压强度低的问题，本发明提供了一种含有低品质硅灰的高强地聚物砂浆，组分包括凝胶材料、骨料、微集料和碱激发剂，凝胶材料包括低钙粉煤灰、铝酸钙水泥、低品质硅灰和纳米二氧化硅，骨料包括石英砂，微集料包括钢纤维，碱激发剂包括固体氢氧化钠、水玻璃溶液和自来水。本发明利用低品质硅灰与纳米二氧化硅的协同作用，增加了整体体系的活性二氧化硅含量，对粉煤灰地聚物砂浆的抗压强度起到良好的增强作用，使含有低品质硅灰的地聚物砂浆的抗压强度达到80.4MPa。
High-strength geopolymer mortar containing low-quality silica fume and preparation method thereof
一种含有低品质硅灰的高强地聚物砂浆及其制备方法
PAN ZHU (author) / TAN MENGZHEN (author) / ZHENG GONG (author)
2024-05-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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