Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sandstone accelerated carbonization and carbonized cement brick preparation method
The invention relates to a preparation method for accelerating carbonization by adopting sandstone and a carbonized cement brick product, which comprises the following steps: uniformly mixing raw materials including Portland cement, sandstone and limestone, adding water, and stirring to obtain mixed slurry; adding fine aggregate into the mixed slurry, uniformly mixing, pouring into a mold, vibrating and molding; removing the mold after sealed maintenance, and putting the brick subjected to mold removal into an environment with a certain CO2 concentration for carbonization maintenance; the carbonized cement brick product is obtained. The method has the advantages that the demolding operation is simple, pre-curing and midway water replenishing are not needed during carbonization curing, industrial tail gas containing CO2 can be directly utilized, and the sandstone can accelerate carbonization, improve the carbon sequestration effect, quickly enhance the early strength of the cement brick, improve the porosity and the like; cost can be saved, equipment is simple, carbon is permanently fixed, CO2 emission in the production process is reduced, and the method is one of beneficial ways for achieving carbon neutralization and carbon peak reaching.
本发明涉及一种采用砂岩加速碳化及碳化水泥砖制品的制备方法，其包括将原料硅酸盐水泥、砂岩、石灰石先混合均匀后，加入水搅拌，获得混合浆体；在混合浆体中加入细骨料混合均匀浇筑到模具中振捣成型；密封养护后拆模，将拆模后的砖块放入到一定CO2浓度的环境中进行碳化养护；得到碳化水泥砖制品。该方法脱模操作简单，碳化养护不需要进行预养护和中途补水，可以将含CO2的工业尾气直接利用，砂岩可以加速碳化、提高固碳效果并且能更快地增强水泥砖早期强度，改善孔隙度等优点；能够节约成本、设备简单、永久固碳，减少在生产过程中CO2排放，是实现碳中和、碳达峰有利途径之一。
Sandstone accelerated carbonization and carbonized cement brick preparation method
The invention relates to a preparation method for accelerating carbonization by adopting sandstone and a carbonized cement brick product, which comprises the following steps: uniformly mixing raw materials including Portland cement, sandstone and limestone, adding water, and stirring to obtain mixed slurry; adding fine aggregate into the mixed slurry, uniformly mixing, pouring into a mold, vibrating and molding; removing the mold after sealed maintenance, and putting the brick subjected to mold removal into an environment with a certain CO2 concentration for carbonization maintenance; the carbonized cement brick product is obtained. The method has the advantages that the demolding operation is simple, pre-curing and midway water replenishing are not needed during carbonization curing, industrial tail gas containing CO2 can be directly utilized, and the sandstone can accelerate carbonization, improve the carbon sequestration effect, quickly enhance the early strength of the cement brick, improve the porosity and the like; cost can be saved, equipment is simple, carbon is permanently fixed, CO2 emission in the production process is reduced, and the method is one of beneficial ways for achieving carbon neutralization and carbon peak reaching.
本发明涉及一种采用砂岩加速碳化及碳化水泥砖制品的制备方法，其包括将原料硅酸盐水泥、砂岩、石灰石先混合均匀后，加入水搅拌，获得混合浆体；在混合浆体中加入细骨料混合均匀浇筑到模具中振捣成型；密封养护后拆模，将拆模后的砖块放入到一定CO2浓度的环境中进行碳化养护；得到碳化水泥砖制品。该方法脱模操作简单，碳化养护不需要进行预养护和中途补水，可以将含CO2的工业尾气直接利用，砂岩可以加速碳化、提高固碳效果并且能更快地增强水泥砖早期强度，改善孔隙度等优点；能够节约成本、设备简单、永久固碳，减少在生产过程中CO2排放，是实现碳中和、碳达峰有利途径之一。
Sandstone accelerated carbonization and carbonized cement brick preparation method
一种砂岩加速碳化及碳化水泥砖的制备方法
LIN RUNSHENG (Autor:in) / HUANG GUO (Autor:in) / GUO RONGXIN (Autor:in) / LYU YAN (Autor:in) / DENG SHIHAN (Autor:in)
14.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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