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A platform for research: civil engineering, architecture and urbanism
CO2-doped low-carbon premixed concrete production process and preparation device
The invention provides a CO2-doped low-carbon premixed concrete production process and a preparation device. The CO2-doped low-carbon premixed concrete production process comprises the following steps: S1, performing reduced-pressure phase splitting on low-temperature liquid CO2; s2, uniformly mixing aggregate, cement, an auxiliary cementing material and a carbonation aid according to a certain water-binder ratio to obtain premixed concrete; and S3, introducing CO2 after phase splitting into the premixed concrete, and continuously stirring for a certain time to obtain the low-carbon premixed concrete. According to the invention, CO2 is used for doping the premixed concrete containing the aggregate from the industrial waste solid, the process is simple, the reaction time is shortened, and the compressive strength of the finished product is improved.
本发明提出一种掺杂CO2的低碳预拌混凝土生产工艺及制备装置，方法包括以下步骤：S1，对低温液态CO2进行减压分相；S2，按一定水胶比将骨料、水泥、辅助胶凝材料和碳酸化助剂混合均匀得到预拌混凝土；S3，将预拌混凝土通入分相后的CO2后持续搅拌一定时间后得到低碳预拌混凝土。本发明利用CO2对包含来自工业废固的骨料的预拌混凝土进行掺杂，工艺简单同时减少反应时长，提高成品的抗压强度。
CO2-doped low-carbon premixed concrete production process and preparation device
The invention provides a CO2-doped low-carbon premixed concrete production process and a preparation device. The CO2-doped low-carbon premixed concrete production process comprises the following steps: S1, performing reduced-pressure phase splitting on low-temperature liquid CO2; s2, uniformly mixing aggregate, cement, an auxiliary cementing material and a carbonation aid according to a certain water-binder ratio to obtain premixed concrete; and S3, introducing CO2 after phase splitting into the premixed concrete, and continuously stirring for a certain time to obtain the low-carbon premixed concrete. According to the invention, CO2 is used for doping the premixed concrete containing the aggregate from the industrial waste solid, the process is simple, the reaction time is shortened, and the compressive strength of the finished product is improved.
本发明提出一种掺杂CO2的低碳预拌混凝土生产工艺及制备装置，方法包括以下步骤：S1，对低温液态CO2进行减压分相；S2，按一定水胶比将骨料、水泥、辅助胶凝材料和碳酸化助剂混合均匀得到预拌混凝土；S3，将预拌混凝土通入分相后的CO2后持续搅拌一定时间后得到低碳预拌混凝土。本发明利用CO2对包含来自工业废固的骨料的预拌混凝土进行掺杂，工艺简单同时减少反应时长，提高成品的抗压强度。
CO2-doped low-carbon premixed concrete production process and preparation device
一种掺杂CO2的低碳预拌混凝土生产工艺及制备装置
ZHAO CHAO (author) / WANG TAO (author) / YI ZHENWEI (author) / WANG XINGQI (author) / LI YAFANG (author) / WANG PENGHAO (author)
2023-06-30
Patent
Electronic Resource
Chinese
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