Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Coal gangue-based composite geopolymer grouting filling material and preparation method thereof
The invention discloses a coal gangue-based composite geopolymer grouting filling material and a preparation method thereof. The preparation method comprises a step of weighing raw materials in partsby mass. According to the method, coal gangue powder and slag powder are used as main raw materials; a KOH solid and a water glass solution form an alkali solution; slag powder with good activation performance and ground coal gangue powder with insufficient activation performance are subjected to alkali-excited activation by adopting an alkali excitation technology, active glass bodies in the slagpowder and active components such as SiO2 and Al2O3 in the coal gangue powder are leached out in a strong alkali environment to form a grouting material with a gelling effect, and compared with a cement material, the grouting material is lower in manufacturing cost and wide in material source; meanwhile, comprehensive and effective utilization of coal gangue is improved, stacking of a large amount of coal gangue is reduced, and good environmental protection and social benefits are achieved. Compared with a cement grouting material, the grouting material prepared by the invention is lower in bleeding rate and higher in stone rate, has a rapid hardening effect, can reduce water damage caused by permeation of water into a roadbed in a non-setting stage of slurry, and effectively reduces airshrinkage and crack extension after slurry hardening.
本发明公开了一种煤矸石基复合地聚物注浆填充材料及其制备方法，按质量份数计取各原料，以煤矸石粉和矿渣粉作为主要原料，以KOH固体与水玻璃溶液形成碱溶液，采用碱激发技术对活化性能较好的矿渣粉和活化性能不足的研磨煤矸石粉进行碱激发活化，在强碱环境使矿渣粉内活性玻璃体和煤矸石粉内SiO和AlO等活性成分浸出，形成具有胶凝作用的注浆材料，相比水泥材料造价更低，且材料来源广泛；同时有利于提高煤矸石的综合有效利用，减少煤矸石的大量堆放，具有良好的环保和社会效益；本发明制备的注浆材料相比于水泥注浆材料，析水率更低，结石率更高，具有速凝效果，能减少浆液未凝结阶段水分渗入路基形成的水损病害，有效减少了浆液硬化后的干缩和裂缝延展。
Coal gangue-based composite geopolymer grouting filling material and preparation method thereof
The invention discloses a coal gangue-based composite geopolymer grouting filling material and a preparation method thereof. The preparation method comprises a step of weighing raw materials in partsby mass. According to the method, coal gangue powder and slag powder are used as main raw materials; a KOH solid and a water glass solution form an alkali solution; slag powder with good activation performance and ground coal gangue powder with insufficient activation performance are subjected to alkali-excited activation by adopting an alkali excitation technology, active glass bodies in the slagpowder and active components such as SiO2 and Al2O3 in the coal gangue powder are leached out in a strong alkali environment to form a grouting material with a gelling effect, and compared with a cement material, the grouting material is lower in manufacturing cost and wide in material source; meanwhile, comprehensive and effective utilization of coal gangue is improved, stacking of a large amount of coal gangue is reduced, and good environmental protection and social benefits are achieved. Compared with a cement grouting material, the grouting material prepared by the invention is lower in bleeding rate and higher in stone rate, has a rapid hardening effect, can reduce water damage caused by permeation of water into a roadbed in a non-setting stage of slurry, and effectively reduces airshrinkage and crack extension after slurry hardening.
本发明公开了一种煤矸石基复合地聚物注浆填充材料及其制备方法，按质量份数计取各原料，以煤矸石粉和矿渣粉作为主要原料，以KOH固体与水玻璃溶液形成碱溶液，采用碱激发技术对活化性能较好的矿渣粉和活化性能不足的研磨煤矸石粉进行碱激发活化，在强碱环境使矿渣粉内活性玻璃体和煤矸石粉内SiO和AlO等活性成分浸出，形成具有胶凝作用的注浆材料，相比水泥材料造价更低，且材料来源广泛；同时有利于提高煤矸石的综合有效利用，减少煤矸石的大量堆放，具有良好的环保和社会效益；本发明制备的注浆材料相比于水泥注浆材料，析水率更低，结石率更高，具有速凝效果，能减少浆液未凝结阶段水分渗入路基形成的水损病害，有效减少了浆液硬化后的干缩和裂缝延展。
Coal gangue-based composite geopolymer grouting filling material and preparation method thereof
一种煤矸石基复合地聚物注浆填充材料及其制备方法
ZHANG ZHENGQI (Autor:in) / TIAN ZHONGNAN (Autor:in) / TANG XIUMING (Autor:in) / XU YUFENG (Autor:in) / LI HONGWEI (Autor:in) / WANG MENG (Autor:in) / WANG YUJIE (Autor:in) / SONG WENTAO (Autor:in) / CHEN SHENGUANG (Autor:in)
17.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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