Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Coal ash and slag carbon sequestration geopolymer as well as preparation method and application thereof
The invention discloses a coal ash slag carbon sequestration geopolymer as well as a preparation method and application thereof, and relates to the technical field of building materials. The invention relates to a preparation method of a coal ash slag carbon sequestration geopolymer, which comprises the following steps: S1, adding coal ash into a carbonate solution, uniformly mixing, introducing carbon dioxide gas, and carrying out carbon sequestration reaction to obtain carbon sequestration coal ash; s2, adding the carbon sequestration slag into a carbonate solution, uniformly mixing, and introducing carbon dioxide gas to carry out carbon sequestration reaction to obtain the carbon sequestration slag; and S3, mixing the carbon-sequestration fly ash obtained in the step S1 and the carbon-sequestration slag obtained in the step S2, adding an exciting agent anhydrous sodium silicate, uniformly stirring, adding water, and stirring to obtain the fly ash and slag carbon-sequestration geopolymer. The obtained coal ash slag carbon sequestration geopolymer is high in carbon sequestration rate, the initial setting time can reach 65 min under the condition that a retarder is not added, and the strength of a geopolymer matrix can reach 35.2 MPa after 7 days.
本发明公开了一种粉煤灰矿渣固碳地聚物及其制备方法和应用，涉及建筑材料技术领域。一种粉煤灰矿渣固碳地聚物的制备方法，包括以下步骤：S1.将粉煤灰加入碳酸盐溶液中，混合均匀，通入二氧化碳气体进行固碳反应得到固碳粉煤灰；S2.将固碳矿渣加入碳酸盐溶液中，混合均匀，通入二氧化碳气体进行固碳反应得到固碳矿渣；S3.将步骤S1得到的固碳粉煤灰和步骤S2得到的固碳矿渣混合，加入激发剂无水硅酸钠搅拌均匀，然后加入水搅拌得到粉煤灰矿渣固碳地聚物。本发明得到的粉煤灰矿渣固碳地聚物固碳率高，在不加缓凝剂的情况下初凝时间能达到65min，7天后地聚物基体强度能达到35.2MPa。
Coal ash and slag carbon sequestration geopolymer as well as preparation method and application thereof
The invention discloses a coal ash slag carbon sequestration geopolymer as well as a preparation method and application thereof, and relates to the technical field of building materials. The invention relates to a preparation method of a coal ash slag carbon sequestration geopolymer, which comprises the following steps: S1, adding coal ash into a carbonate solution, uniformly mixing, introducing carbon dioxide gas, and carrying out carbon sequestration reaction to obtain carbon sequestration coal ash; s2, adding the carbon sequestration slag into a carbonate solution, uniformly mixing, and introducing carbon dioxide gas to carry out carbon sequestration reaction to obtain the carbon sequestration slag; and S3, mixing the carbon-sequestration fly ash obtained in the step S1 and the carbon-sequestration slag obtained in the step S2, adding an exciting agent anhydrous sodium silicate, uniformly stirring, adding water, and stirring to obtain the fly ash and slag carbon-sequestration geopolymer. The obtained coal ash slag carbon sequestration geopolymer is high in carbon sequestration rate, the initial setting time can reach 65 min under the condition that a retarder is not added, and the strength of a geopolymer matrix can reach 35.2 MPa after 7 days.
本发明公开了一种粉煤灰矿渣固碳地聚物及其制备方法和应用，涉及建筑材料技术领域。一种粉煤灰矿渣固碳地聚物的制备方法，包括以下步骤：S1.将粉煤灰加入碳酸盐溶液中，混合均匀，通入二氧化碳气体进行固碳反应得到固碳粉煤灰；S2.将固碳矿渣加入碳酸盐溶液中，混合均匀，通入二氧化碳气体进行固碳反应得到固碳矿渣；S3.将步骤S1得到的固碳粉煤灰和步骤S2得到的固碳矿渣混合，加入激发剂无水硅酸钠搅拌均匀，然后加入水搅拌得到粉煤灰矿渣固碳地聚物。本发明得到的粉煤灰矿渣固碳地聚物固碳率高，在不加缓凝剂的情况下初凝时间能达到65min，7天后地聚物基体强度能达到35.2MPa。
Coal ash and slag carbon sequestration geopolymer as well as preparation method and application thereof
一种粉煤灰矿渣固碳地聚物及其制备方法和应用
ZHONG HUAICHENG (Autor:in) / XIE JIANHE (Autor:in) / FENG YUAN (Autor:in) / TAN JIAKUN (Autor:in) / ZHAO CHENYANG (Autor:in) / ZHANG BIN (Autor:in) / FANG JUNDA (Autor:in)
07.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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