A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Negative carbon fiber cement board and preparation method thereof
The invention discloses a preparation method of a negative carbon fiber cement board, which comprises the following steps: dispersing wood fibers or mineral fibers in water to obtain a fiber suspension; mixing the obtained fiber suspension with calcium silicate clinker, cement, a calcium additive and a siliceous additive to obtain mixed slurry; carrying out dehydration, grouting and standing treatment on the obtained mixed slurry to obtain a plate blank, and pre-curing the plate blank in a CO2 atmosphere to obtain a low-carbon fiber cement plate; and feeding the obtained low-carbon fiber cement board into a curing kettle, and carrying out gradual CO2 pressurizing and heating curing, so as to obtain the negative carbon fiber cement board. The production efficiency of carbon dioxide mineralization maintenance and the utilization efficiency of carbon dioxide gas can be improved while energy consumption is reduced, the carbon sequestration capacity and mineralization depth of the negative carbon fiber cement board can be effectively improved, meanwhile, the layering phenomenon of the negative carbon fiber cement board caused by too fast temperature rise can be avoided, greenhouse gas emission is reduced, and environmental protection is achieved. The large-scale popularization is easy.
本发明公开了一种负碳纤维水泥板的制备方法，包括：将木质纤维或矿物纤维分散于水中，得到纤维悬浮液；将得到的纤维悬浮液与硅酸钙熟料、水泥、钙质添加剂以及硅质添加剂进行混合，得到混合浆料；将得到的混合浆料进行脱水、压浆以及静养处理，得到板坯，并将板坯在CO2氛围下预养护，得到低碳纤维水泥板；将得到的低碳纤维水泥板送入到养护釜进行渐进式CO2增压升温养护，得到负碳纤维水泥板。本发明在降低能耗的同时，能提高二氧化碳矿化养护的生产效率和二氧化碳气体的利用效率，可以有效提高负碳纤维水泥板的固碳能力和矿化深度，同时可以避免温升过快造成的负碳纤维水泥板分层现象，降低温室气体排放，易于大规模推广。
Negative carbon fiber cement board and preparation method thereof
The invention discloses a preparation method of a negative carbon fiber cement board, which comprises the following steps: dispersing wood fibers or mineral fibers in water to obtain a fiber suspension; mixing the obtained fiber suspension with calcium silicate clinker, cement, a calcium additive and a siliceous additive to obtain mixed slurry; carrying out dehydration, grouting and standing treatment on the obtained mixed slurry to obtain a plate blank, and pre-curing the plate blank in a CO2 atmosphere to obtain a low-carbon fiber cement plate; and feeding the obtained low-carbon fiber cement board into a curing kettle, and carrying out gradual CO2 pressurizing and heating curing, so as to obtain the negative carbon fiber cement board. The production efficiency of carbon dioxide mineralization maintenance and the utilization efficiency of carbon dioxide gas can be improved while energy consumption is reduced, the carbon sequestration capacity and mineralization depth of the negative carbon fiber cement board can be effectively improved, meanwhile, the layering phenomenon of the negative carbon fiber cement board caused by too fast temperature rise can be avoided, greenhouse gas emission is reduced, and environmental protection is achieved. The large-scale popularization is easy.
本发明公开了一种负碳纤维水泥板的制备方法，包括：将木质纤维或矿物纤维分散于水中，得到纤维悬浮液；将得到的纤维悬浮液与硅酸钙熟料、水泥、钙质添加剂以及硅质添加剂进行混合，得到混合浆料；将得到的混合浆料进行脱水、压浆以及静养处理，得到板坯，并将板坯在CO2氛围下预养护，得到低碳纤维水泥板；将得到的低碳纤维水泥板送入到养护釜进行渐进式CO2增压升温养护，得到负碳纤维水泥板。本发明在降低能耗的同时，能提高二氧化碳矿化养护的生产效率和二氧化碳气体的利用效率，可以有效提高负碳纤维水泥板的固碳能力和矿化深度，同时可以避免温升过快造成的负碳纤维水泥板分层现象，降低温室气体排放，易于大规模推广。
Negative carbon fiber cement board and preparation method thereof
一种负碳纤维水泥板及其制备方法
ZHAO CHAO (author) / LIU JINKE (author) / LI YAFANG (author) / WANG PENGHAO (author)
2022-11-29
Patent
Electronic Resource
Chinese
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