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A platform for research: civil engineering, architecture and urbanism
Lightweight aggregate capable of sealing carbon dioxide and preparation method of lightweight aggregate
The invention relates to the technical field of carbon dioxide mineralization sealing, and discloses a lightweight aggregate capable of sealing carbon dioxide and a preparation method thereof. The preparation method comprises the following steps: S10, mixing fly ash, mineral powder and carbide slag as raw materials, adjusting the addition amount of the fly ash, the mineral powder and the carbide slag according to the content of CaO and SiO2 in the fly ash, the mineral powder and the carbide slag, and controlling the C/Si mass ratio of the mixture to be 0.8-1.2; s20, mixing water with the mixture to prepare a ball blank; s30, the ball blank is subjected to pre-curing treatment; s40, the ball blank obtained after pre-curing treatment is placed in a curing kettle, CO2 gas is introduced into the curing kettle to conduct curing on the ball blank, and the interior of the curing kettle is in a pressure stabilizing state; and S50, after curing is finished, discharging CO2 gas in the curing kettle, and taking out a spherical sample, namely the lightweight aggregate. The lightweight aggregate with excellent comprehensive performance such as bulk density, cylinder compressive strength and carbon sequestration rate can be prepared.
本发明涉及二氧化碳矿化封存技术领域，公开一种可封存二氧化碳的轻骨料及其制备方法。该制备方法包括以下步骤：S10、以粉煤灰、矿粉、电石渣为原料进行混合，根据粉煤灰、矿粉、电石渣中的CaO和SiO2含量调整粉煤灰、矿粉、电石渣的添加量，控制混合料的C/Si质量比为0.8‑1.2；S20、将水与混合料混合制成球坯；S30、将球坯进行预养护处理；S40、将预养护处理后的球坯置于养护釜中，往养护釜中通入CO2气体对球坯进行养护，并使养护釜内处于稳压状态；S50、养护结束后将养护釜内的CO2气体排出，取出球型样品即轻骨料。本发明可以制得堆积密度、筒压强度和固碳率综合性能优良的轻骨料。
Lightweight aggregate capable of sealing carbon dioxide and preparation method of lightweight aggregate
The invention relates to the technical field of carbon dioxide mineralization sealing, and discloses a lightweight aggregate capable of sealing carbon dioxide and a preparation method thereof. The preparation method comprises the following steps: S10, mixing fly ash, mineral powder and carbide slag as raw materials, adjusting the addition amount of the fly ash, the mineral powder and the carbide slag according to the content of CaO and SiO2 in the fly ash, the mineral powder and the carbide slag, and controlling the C/Si mass ratio of the mixture to be 0.8-1.2; s20, mixing water with the mixture to prepare a ball blank; s30, the ball blank is subjected to pre-curing treatment; s40, the ball blank obtained after pre-curing treatment is placed in a curing kettle, CO2 gas is introduced into the curing kettle to conduct curing on the ball blank, and the interior of the curing kettle is in a pressure stabilizing state; and S50, after curing is finished, discharging CO2 gas in the curing kettle, and taking out a spherical sample, namely the lightweight aggregate. The lightweight aggregate with excellent comprehensive performance such as bulk density, cylinder compressive strength and carbon sequestration rate can be prepared.
本发明涉及二氧化碳矿化封存技术领域，公开一种可封存二氧化碳的轻骨料及其制备方法。该制备方法包括以下步骤：S10、以粉煤灰、矿粉、电石渣为原料进行混合，根据粉煤灰、矿粉、电石渣中的CaO和SiO2含量调整粉煤灰、矿粉、电石渣的添加量，控制混合料的C/Si质量比为0.8‑1.2；S20、将水与混合料混合制成球坯；S30、将球坯进行预养护处理；S40、将预养护处理后的球坯置于养护釜中，往养护釜中通入CO2气体对球坯进行养护，并使养护釜内处于稳压状态；S50、养护结束后将养护釜内的CO2气体排出，取出球型样品即轻骨料。本发明可以制得堆积密度、筒压强度和固碳率综合性能优良的轻骨料。
Lightweight aggregate capable of sealing carbon dioxide and preparation method of lightweight aggregate
一种可封存二氧化碳的轻骨料及其制备方法
ZOU XIANGBO (author) / MA DEQUN (author) / RAO MUMIN (author) / CHEN GONGDA (author) / YE JI (author)
2024-11-15
Patent
Electronic Resource
Chinese
European Patent Office | 2015
| European Patent Office | 2021
| Engineering Index Backfile | 1957
Lightweight Aggregate Concrete
| UB Braunschweig | 1977