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A platform for research: civil engineering, architecture and urbanism
Geopolymer-based concrete material and preparation method thereof
The invention provides a geopolymer-based concrete material and a preparation method thereof. The geopolymer-based concrete material is prepared from a geopolymer concrete mixture, the geopolymer concrete mixture is prepared from the following raw materials: a gel raw material, quartz sand, an exciting agent raw material and a water reducing agent, wherein the exciting agent is prepared from a sodium silicate solution, sodium hydroxide and water; gel raw materials are slag and silica fume, or the gel raw materials are slag, fly ash and silica fume. The method comprises the following steps: preparing a test block from a geopolymer concrete mixture, and curing the test block in a standard curing box at 20 +/-2 DEG C for 28 days. The 28d compressive strength of the geopolymer-based concrete material can reach 130MPa or above, the residual strength after high temperature can also reach 30MPa, and the geopolymer-based concrete material also has good high temperature resistance on the premise of ensuring excellent mechanical properties, and can still keep appearance integrity at the high temperature of 800 DEG C.
本发明提供了一种地聚物基混凝土材料及其制备方法，该材料采用地聚物混凝土拌合料制得；该地聚物混凝土拌合料，由以下原料组成：凝胶原料、石英砂、激发剂原料和减水剂；其中，激发剂原料为硅酸钠溶液、氢氧化钠和水；凝胶原料为矿渣和硅灰，或凝胶原料为矿渣、粉煤灰和硅灰。该方法包括采用地聚物混凝土拌合料制得试块，然后将试块置于20±2℃的标准养护箱内养护28天。该地聚物基混凝土材料的28d抗压强度能够达到130MPa以上，高温后的剩余强度也能够达到30MPa，在保证优良的力学性能前提下，还具有良好的耐高温性能，在800℃的高温下仍能保持表观完整。
Geopolymer-based concrete material and preparation method thereof
The invention provides a geopolymer-based concrete material and a preparation method thereof. The geopolymer-based concrete material is prepared from a geopolymer concrete mixture, the geopolymer concrete mixture is prepared from the following raw materials: a gel raw material, quartz sand, an exciting agent raw material and a water reducing agent, wherein the exciting agent is prepared from a sodium silicate solution, sodium hydroxide and water; gel raw materials are slag and silica fume, or the gel raw materials are slag, fly ash and silica fume. The method comprises the following steps: preparing a test block from a geopolymer concrete mixture, and curing the test block in a standard curing box at 20 +/-2 DEG C for 28 days. The 28d compressive strength of the geopolymer-based concrete material can reach 130MPa or above, the residual strength after high temperature can also reach 30MPa, and the geopolymer-based concrete material also has good high temperature resistance on the premise of ensuring excellent mechanical properties, and can still keep appearance integrity at the high temperature of 800 DEG C.
本发明提供了一种地聚物基混凝土材料及其制备方法，该材料采用地聚物混凝土拌合料制得；该地聚物混凝土拌合料，由以下原料组成：凝胶原料、石英砂、激发剂原料和减水剂；其中，激发剂原料为硅酸钠溶液、氢氧化钠和水；凝胶原料为矿渣和硅灰，或凝胶原料为矿渣、粉煤灰和硅灰。该方法包括采用地聚物混凝土拌合料制得试块，然后将试块置于20±2℃的标准养护箱内养护28天。该地聚物基混凝土材料的28d抗压强度能够达到130MPa以上，高温后的剩余强度也能够达到30MPa，在保证优良的力学性能前提下，还具有良好的耐高温性能，在800℃的高温下仍能保持表观完整。
Geopolymer-based concrete material and preparation method thereof
一种地聚物基混凝土材料及其制备方法
YAO YAO (author) / WU BORUI (author) / LI YANLONG (author) / WANG KE (author)
2023-07-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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