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Early-strength ultrahigh-ductility geopolymer concrete material and preparation method thereof
The invention discloses an early-strength ultrahigh-ductility geopolymer concrete material, which is prepared from the following components in parts by weight: 345 to 370 parts of an alkali activator, 85 to 95 parts of water, 150 to 300 parts of silica fume, 120 to 170 parts of fly ash, 510 to 700 parts of slag powder, 880 to 910 parts of river sand, 15 to 35 parts of calcium carbonate whiskers, 10 to 20 parts of nano calcium carbonate, 15 to 25 parts of polyethylene chopped fibers, 0.1 to 0.2 part of a defoaming agent and 0.15 to 0.25 part of amino silane. According to the invention, a multi-scale reinforcing system composed of the polyethylene fibers, the calcium carbonate whiskers and the micro-nano calcium carbonate is constructed, so that the compressive strength and ductility of the concrete are improved; the early strength characteristic is realized by adjusting the proportion of the slag powder, the fly ash and the micro-silicon powder; and meanwhile, amino silane is introduced, so that the dispersity of the calcium carbonate whiskers, the micro-nano calcium carbonate and the micro-silicon powder is improved, and the geopolymer concrete achieves early strength and ultrahigh ductility.
本发明公开了一种早强型超高延性地聚物混凝土材料，包括如下重量份数的组分：碱激发剂345~370份、水85~95份、微硅粉150~300份、粉煤灰120~170份、矿渣粉510~700份、河砂880~910份、碳酸钙晶须15~35份、纳米碳酸钙10~20份、聚乙烯短切纤维15~25份、消泡剂0.1~0.2份、氨基硅烷0.15~0.25份。本发明构建聚乙烯纤维、碳酸钙晶须、微纳米碳酸钙组成的多尺度增强体系，提高了混凝土抗压强度和延性；通过调整矿渣粉、粉煤灰和微硅粉的比例实现早强特性；同时引入氨基硅烷改善了碳酸钙晶须、微纳米碳酸钙和微硅粉的分散性，使地聚物混凝土达到了早强和超高延性。
Early-strength ultrahigh-ductility geopolymer concrete material and preparation method thereof
The invention discloses an early-strength ultrahigh-ductility geopolymer concrete material, which is prepared from the following components in parts by weight: 345 to 370 parts of an alkali activator, 85 to 95 parts of water, 150 to 300 parts of silica fume, 120 to 170 parts of fly ash, 510 to 700 parts of slag powder, 880 to 910 parts of river sand, 15 to 35 parts of calcium carbonate whiskers, 10 to 20 parts of nano calcium carbonate, 15 to 25 parts of polyethylene chopped fibers, 0.1 to 0.2 part of a defoaming agent and 0.15 to 0.25 part of amino silane. According to the invention, a multi-scale reinforcing system composed of the polyethylene fibers, the calcium carbonate whiskers and the micro-nano calcium carbonate is constructed, so that the compressive strength and ductility of the concrete are improved; the early strength characteristic is realized by adjusting the proportion of the slag powder, the fly ash and the micro-silicon powder; and meanwhile, amino silane is introduced, so that the dispersity of the calcium carbonate whiskers, the micro-nano calcium carbonate and the micro-silicon powder is improved, and the geopolymer concrete achieves early strength and ultrahigh ductility.
本发明公开了一种早强型超高延性地聚物混凝土材料，包括如下重量份数的组分：碱激发剂345~370份、水85~95份、微硅粉150~300份、粉煤灰120~170份、矿渣粉510~700份、河砂880~910份、碳酸钙晶须15~35份、纳米碳酸钙10~20份、聚乙烯短切纤维15~25份、消泡剂0.1~0.2份、氨基硅烷0.15~0.25份。本发明构建聚乙烯纤维、碳酸钙晶须、微纳米碳酸钙组成的多尺度增强体系，提高了混凝土抗压强度和延性；通过调整矿渣粉、粉煤灰和微硅粉的比例实现早强特性；同时引入氨基硅烷改善了碳酸钙晶须、微纳米碳酸钙和微硅粉的分散性，使地聚物混凝土达到了早强和超高延性。
Early-strength ultrahigh-ductility geopolymer concrete material and preparation method thereof
一种早强型超高延性地聚物混凝土材料及其制备方法
LI LI (author) / MENG ZIXIANG (author) / LI ZONGLI (author)
2021-12-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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