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A platform for research: civil engineering, architecture and urbanism
Carbon dioxide injection process for low-carbon premixed concrete
The invention discloses a carbon dioxide injection process for low-carbon premixed concrete, and relates to the technical field of low-carbon premixed concrete. The process comprises the following steps: respectively weighing the coarse aggregate, the fine aggregate, the cement, the admixture, the water and the admixture; the preparation method comprises the following steps: pre-carbonizing fine aggregate, cement, an admixture, water and an additive in a closed space A to obtain pre-mixed mortar; mixing with coarse aggregate, continuously stirring in the closed space A, conveying the material into the closed space B when the mass concentration of CO2 in the closed space A is less than or equal to 10%, and continuously carbonizing to obtain the low-carbon premixed concrete. According to the method, the gaseous CO2 is carbonized in a closed environment, so that the controllability of the production process of the low-carbon premixed concrete is improved, the carbonization efficiency and the carbon sequestration amount are improved, and the production cost is reduced.
本发明公开了一种低碳预拌混凝土的二氧化碳注入工艺，涉及低碳预拌混凝土的技术领域。该工艺包括如下步骤：分别称量粗骨料、细骨料、水泥、掺合料、水和外加剂；先将细骨料、水泥、掺合料、水和外加剂在密闭空间A中进行预碳化，得到预拌砂浆；再与粗骨料混合后在密闭空间A中继续搅拌，当密闭环境A中CO2的质量浓度≤10%时，将物料输送至密闭空间B中，继续进行碳化，得到低碳预拌混凝土。本申请采用气态CO2在密闭的环境下进行碳化，有助于改善低碳预拌混凝土生产过程的可控性，提高碳化效率和固碳量，还有助于降低生产成本。
Carbon dioxide injection process for low-carbon premixed concrete
The invention discloses a carbon dioxide injection process for low-carbon premixed concrete, and relates to the technical field of low-carbon premixed concrete. The process comprises the following steps: respectively weighing the coarse aggregate, the fine aggregate, the cement, the admixture, the water and the admixture; the preparation method comprises the following steps: pre-carbonizing fine aggregate, cement, an admixture, water and an additive in a closed space A to obtain pre-mixed mortar; mixing with coarse aggregate, continuously stirring in the closed space A, conveying the material into the closed space B when the mass concentration of CO2 in the closed space A is less than or equal to 10%, and continuously carbonizing to obtain the low-carbon premixed concrete. According to the method, the gaseous CO2 is carbonized in a closed environment, so that the controllability of the production process of the low-carbon premixed concrete is improved, the carbonization efficiency and the carbon sequestration amount are improved, and the production cost is reduced.
本发明公开了一种低碳预拌混凝土的二氧化碳注入工艺，涉及低碳预拌混凝土的技术领域。该工艺包括如下步骤：分别称量粗骨料、细骨料、水泥、掺合料、水和外加剂；先将细骨料、水泥、掺合料、水和外加剂在密闭空间A中进行预碳化，得到预拌砂浆；再与粗骨料混合后在密闭空间A中继续搅拌，当密闭环境A中CO2的质量浓度≤10%时，将物料输送至密闭空间B中，继续进行碳化，得到低碳预拌混凝土。本申请采用气态CO2在密闭的环境下进行碳化，有助于改善低碳预拌混凝土生产过程的可控性，提高碳化效率和固碳量，还有助于降低生产成本。
Carbon dioxide injection process for low-carbon premixed concrete
低碳预拌混凝土的二氧化碳注入工艺
NI JUN (author) / KONG MINYANG (author) / ZOU XIAOTONG (author) / YUAN QIANG (author) / ZHANG SUHUI (author)
2024-01-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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