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A platform for research: civil engineering, architecture and urbanism
Geopolymer coated carbonated steel slag aggregate as well as preparation method and application thereof
The invention provides a geopolymer-coated carbonated steel slag aggregate as well as a preparation method and application thereof, and belongs to the technical field of solid waste resource reutilization. According to the geopolymer coated carbonated steel slag aggregate prepared by the preparation method provided by the invention, the crushing value is 14.1-15.6%, the Labar rock abrasion value is 16.1-19.9%, the water absorption rate is 1.4-2.5%, and the autoclaved pulverization rate is 2.0-4.3%, which are all lower than the technical requirements of steel slag coarse aggregate for asphalt mixture on a high-grade road surface layer in Steel Slag for Road (GB/T25824-2010); the content of free calcium oxide in the modified steel slag is 2.3-2.9%, the volume expansion rate of the modified steel slag asphalt mixture is 0.72-0.97%, and the requirements of the content of free calcium oxide in the steel slag and the water immersion expansion rate in Technical Specification for Construction of Highway Asphalt Pavement (JTG F40-2004) are met.
本发明提供了一种地质聚合物包覆碳酸化钢渣集料及其制备方法和应用，属于固体废弃物资源化再利用技术领域。本发明提供的制备方法制备得到的地质聚合物包覆碳酸化钢渣集料的压碎值为14.1～15.6％，洛杉矶磨耗值为16.1～19.9％，吸水率为1.4～2.5％，压蒸粉化率为2.0～4.3％，均低于《道路用钢渣》(GB/T25824‑2010)中沥青混合料用钢渣粗集料在高等级道路表面层的技术要求；以及改性钢渣游离氧化钙含量2.3～2.9％，改性钢渣沥青混合料体积膨胀率为0.72～0.97％，满足《公路沥青路面施工技术规范》(JTG F40‑2004)中钢渣游离氧化钙含量和浸水膨胀率的要求。
Geopolymer coated carbonated steel slag aggregate as well as preparation method and application thereof
The invention provides a geopolymer-coated carbonated steel slag aggregate as well as a preparation method and application thereof, and belongs to the technical field of solid waste resource reutilization. According to the geopolymer coated carbonated steel slag aggregate prepared by the preparation method provided by the invention, the crushing value is 14.1-15.6%, the Labar rock abrasion value is 16.1-19.9%, the water absorption rate is 1.4-2.5%, and the autoclaved pulverization rate is 2.0-4.3%, which are all lower than the technical requirements of steel slag coarse aggregate for asphalt mixture on a high-grade road surface layer in Steel Slag for Road (GB/T25824-2010); the content of free calcium oxide in the modified steel slag is 2.3-2.9%, the volume expansion rate of the modified steel slag asphalt mixture is 0.72-0.97%, and the requirements of the content of free calcium oxide in the steel slag and the water immersion expansion rate in Technical Specification for Construction of Highway Asphalt Pavement (JTG F40-2004) are met.
本发明提供了一种地质聚合物包覆碳酸化钢渣集料及其制备方法和应用，属于固体废弃物资源化再利用技术领域。本发明提供的制备方法制备得到的地质聚合物包覆碳酸化钢渣集料的压碎值为14.1～15.6％，洛杉矶磨耗值为16.1～19.9％，吸水率为1.4～2.5％，压蒸粉化率为2.0～4.3％，均低于《道路用钢渣》(GB/T25824‑2010)中沥青混合料用钢渣粗集料在高等级道路表面层的技术要求；以及改性钢渣游离氧化钙含量2.3～2.9％，改性钢渣沥青混合料体积膨胀率为0.72～0.97％，满足《公路沥青路面施工技术规范》(JTG F40‑2004)中钢渣游离氧化钙含量和浸水膨胀率的要求。
Geopolymer coated carbonated steel slag aggregate as well as preparation method and application thereof
一种地质聚合物包覆碳酸化钢渣集料及其制备方法和应用
HU CHENGUANG (author) / SU HANG (author) / FENG XIAOXIN (author) / WANG JUAN (author) / LIU GANG (author) / JIA YUAN (author) / AN YUKUN (author) / BAI RUIYING (author)
2023-06-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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