Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Gradation-optimized high-temperature reinforced corundum aggregate geopolymer mortar and preparation method thereof
The invention discloses graded high-temperature reinforced corundum aggregate geopolymer mortar and a preparation method thereof. The geopolymer mortar is prepared from the following raw materials in parts by weight: 172 to 193 parts of metakaolin, 400 to 450 parts of fly ash, 221 to 249 parts of potash water glass solution, 1925 to 2142 parts of corundum aggregate and 76 to 86 parts of water. The method comprises the following steps: weighing metakaolin, fly ash, a potash water glass solution, corundum aggregates with different particle size ranges and water according to a mixing ratio, and standing for later use; adding metakaolin and fly ash into a stirring pot together, uniformly mixing the powder under low-speed stirring, slowly adding a potash water glass solution and mixing water, stirring at a medium speed and then stirring at a high speed to obtain a mixture; and sequentially and slowly adding corundum aggregates with different particle size ranges into the mixture, and continuously stirring at a high speed to obtain the geopolymer mortar. According to the invention, the optimally-graded corundum is used as a substitute aggregate of natural sand, so that the high-temperature resistance of the geopolymer mortar is greatly improved, and the geopolymer mortar has relatively high normal-temperature mechanical properties and excellent mechanical properties after high temperature.
本发明公开一种优化级配的高温增强刚玉骨料地聚物砂浆及其制备方法，地聚物砂浆按照重量份数计包括以下原料：偏高岭土172～193份、粉煤灰400～450份、钾水玻璃溶液221～249份、刚玉骨料1925～2142份和水76～86份。方法包括：按配合比称取偏高岭土、粉煤灰、钾水玻璃溶液、不同粒径范围的刚玉骨料以及水放置备用；将偏高岭土和粉煤灰一起加入搅拌锅中，在低速搅拌下使粉体混合均匀，缓慢加入钾水玻璃溶液和拌合水，先中速搅拌再调至高速搅拌，得到混合物；将不同粒径范围的刚玉骨料依次缓慢加入混合物中，继续高速搅拌，得到地聚物砂浆。本发明使用优化级配的刚玉作为天然砂的替代骨料，大幅提高地聚物砂浆的耐高温性能，使其具有较高的常温力学性能以及优异的高温后力学性能。
Gradation-optimized high-temperature reinforced corundum aggregate geopolymer mortar and preparation method thereof
The invention discloses graded high-temperature reinforced corundum aggregate geopolymer mortar and a preparation method thereof. The geopolymer mortar is prepared from the following raw materials in parts by weight: 172 to 193 parts of metakaolin, 400 to 450 parts of fly ash, 221 to 249 parts of potash water glass solution, 1925 to 2142 parts of corundum aggregate and 76 to 86 parts of water. The method comprises the following steps: weighing metakaolin, fly ash, a potash water glass solution, corundum aggregates with different particle size ranges and water according to a mixing ratio, and standing for later use; adding metakaolin and fly ash into a stirring pot together, uniformly mixing the powder under low-speed stirring, slowly adding a potash water glass solution and mixing water, stirring at a medium speed and then stirring at a high speed to obtain a mixture; and sequentially and slowly adding corundum aggregates with different particle size ranges into the mixture, and continuously stirring at a high speed to obtain the geopolymer mortar. According to the invention, the optimally-graded corundum is used as a substitute aggregate of natural sand, so that the high-temperature resistance of the geopolymer mortar is greatly improved, and the geopolymer mortar has relatively high normal-temperature mechanical properties and excellent mechanical properties after high temperature.
本发明公开一种优化级配的高温增强刚玉骨料地聚物砂浆及其制备方法，地聚物砂浆按照重量份数计包括以下原料：偏高岭土172～193份、粉煤灰400～450份、钾水玻璃溶液221～249份、刚玉骨料1925～2142份和水76～86份。方法包括：按配合比称取偏高岭土、粉煤灰、钾水玻璃溶液、不同粒径范围的刚玉骨料以及水放置备用；将偏高岭土和粉煤灰一起加入搅拌锅中，在低速搅拌下使粉体混合均匀，缓慢加入钾水玻璃溶液和拌合水，先中速搅拌再调至高速搅拌，得到混合物；将不同粒径范围的刚玉骨料依次缓慢加入混合物中，继续高速搅拌，得到地聚物砂浆。本发明使用优化级配的刚玉作为天然砂的替代骨料，大幅提高地聚物砂浆的耐高温性能，使其具有较高的常温力学性能以及优异的高温后力学性能。
Gradation-optimized high-temperature reinforced corundum aggregate geopolymer mortar and preparation method thereof
优化级配的高温增强刚玉骨料地聚物砂浆及其制备方法
LI PEIPENG (Autor:in) / LI YI (Autor:in) / JIANG RUIWEN (Autor:in)
10.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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