A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Coal gangue powder-based grouting material for pavement voids and preparation method of coal gangue powder-based grouting material
The invention discloses a coal gangue powder-based grouting material for pavement voids and a preparation method of the coal gangue powder-based grouting material. Gravel is used as a supporting material to improve the overall strength of the grouting material, coal gangue powder, slag powder and coal ash are added, and an alkaline activator is used for activation of the above materials so as to prepare a material with gelling capacity; the gravel is used as a filling material to support a void area of a pavement, and the coal gangue powder and other powder can permeate into fine pores of thegravel, so the grouting material and a pavement structure are bonded into a whole through the permeation of fine materials; and a solution prepared from a sodium silicate solution and a NaOH solid isadopted, active silicon, aluminum and calcium substances in the coal gangue powder, the slag powder and the coal ash are dissolved by using the sodium silicate solution and KOH and then re-aggregatedto form a solution composed of C-S-H hydrated calcium silicate, a C-S-A-H hydrated calcium aluminosilicate hydration product, the sodium silicate solution and KOH, and the formed solution enables thecoal gangue powder and aluminum oxide in the slag powder to react firstly, can prevent too fast coagulation caused by too much coal ash, and the working performance of the grouting material is improved.
本发明公开了一种用于路面脱空的煤矸石粉基灌浆材料及其制备方法，以砂砾作为支撑材料提高材料整体强度，加入煤矸石粉、矿渣粉、粉煤灰，通过碱性激发剂激发将其制备成具有胶凝能力的材料，通过砂砾作为填充材料支撑路面脱空区域，煤矸石粉等粉料可渗透至砂石的细小孔隙能够渗透至砂石的细小孔隙，使灌浆材料与路面结构通过细料的渗透达到粘结一体的作用；水玻璃溶液和NaOH固体制备得到的溶液，水玻璃溶液和KOH将煤矸石粉、矿渣粉和粉煤灰中的活性硅、铝、钙物质溶解之后重聚，形成C‑S‑H水化硅酸钙、C‑S‑A‑H水化硅铝酸钙水化产物，水玻璃溶液和KOH组成的溶液使煤矸石粉和矿渣粉中的氧化铝先反应，能够防止粉煤灰过多导致凝结过快，提高了注浆材料的工作性能。
Coal gangue powder-based grouting material for pavement voids and preparation method of coal gangue powder-based grouting material
The invention discloses a coal gangue powder-based grouting material for pavement voids and a preparation method of the coal gangue powder-based grouting material. Gravel is used as a supporting material to improve the overall strength of the grouting material, coal gangue powder, slag powder and coal ash are added, and an alkaline activator is used for activation of the above materials so as to prepare a material with gelling capacity; the gravel is used as a filling material to support a void area of a pavement, and the coal gangue powder and other powder can permeate into fine pores of thegravel, so the grouting material and a pavement structure are bonded into a whole through the permeation of fine materials; and a solution prepared from a sodium silicate solution and a NaOH solid isadopted, active silicon, aluminum and calcium substances in the coal gangue powder, the slag powder and the coal ash are dissolved by using the sodium silicate solution and KOH and then re-aggregatedto form a solution composed of C-S-H hydrated calcium silicate, a C-S-A-H hydrated calcium aluminosilicate hydration product, the sodium silicate solution and KOH, and the formed solution enables thecoal gangue powder and aluminum oxide in the slag powder to react firstly, can prevent too fast coagulation caused by too much coal ash, and the working performance of the grouting material is improved.
本发明公开了一种用于路面脱空的煤矸石粉基灌浆材料及其制备方法，以砂砾作为支撑材料提高材料整体强度，加入煤矸石粉、矿渣粉、粉煤灰，通过碱性激发剂激发将其制备成具有胶凝能力的材料，通过砂砾作为填充材料支撑路面脱空区域，煤矸石粉等粉料可渗透至砂石的细小孔隙能够渗透至砂石的细小孔隙，使灌浆材料与路面结构通过细料的渗透达到粘结一体的作用；水玻璃溶液和NaOH固体制备得到的溶液，水玻璃溶液和KOH将煤矸石粉、矿渣粉和粉煤灰中的活性硅、铝、钙物质溶解之后重聚，形成C‑S‑H水化硅酸钙、C‑S‑A‑H水化硅铝酸钙水化产物，水玻璃溶液和KOH组成的溶液使煤矸石粉和矿渣粉中的氧化铝先反应，能够防止粉煤灰过多导致凝结过快，提高了注浆材料的工作性能。
Coal gangue powder-based grouting material for pavement voids and preparation method of coal gangue powder-based grouting material
一种用于路面脱空的煤矸石粉基灌浆材料及其制备方法
ZHANG ZHENGQI (author) / TIAN ZHONGNAN (author) / LU CHUAN (author) / LIU HENGBIN (author) / FANG YING (author) / YANG JIANHUA (author) / XU CHENG (author) / ZHAO QINSHENG (author) / QIANG YAKUI (author)
2020-04-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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