Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing recycled concrete product by utilizing and sealing carbon dioxide
The invention belongs to the technical field of recycled concrete preparation, and particularly relates to a method for preparing a recycled concrete product by utilizing and sealing carbon dioxide. The method comprises the steps of crushing and screening the building solid waste to obtain coarse aggregate, fine aggregate and regenerated micro powder; soaking the coarse aggregate, the fine aggregate and the regenerated micro powder in water, taking out, and performing mineralization strengthening in the presence of carbon dioxide; stirring and mixing the mineralization strengthened coarse aggregate, fine aggregate, regenerated micro powder, cement, a mineral admixture, an admixture, fibers and water to obtain freshly mixed regenerated concrete, pouring the freshly mixed regenerated concrete into a mold for molding, and performing mineralization maintenance in the presence of carbon dioxide after demolding to obtain a regenerated concrete product. According to the method, the performance of the building solid waste raw material and the recycled concrete product is improved, full utilization of the building solid waste is guaranteed, carbon dioxide storage and utilization of the concrete in the whole production process from the raw material to the product are achieved, and a way is provided for achieving the carbon neutralization target.
本发明属于再生混凝土制备技术领域，具体涉及一种利用并封存二氧化碳制备再生混凝土制品的方法。包括以下步骤：将建筑固体废弃物破碎、筛分，得到粗骨料、细骨料和再生微粉；将粗骨料、细骨料、再生微粉用水浸泡后取出，在二氧化碳存在下进行矿化强化；将包括矿化强化后的粗骨料、细骨料、再生微粉和水泥、矿物掺合料、外加剂、纤维、水的物料搅拌混合，得到新拌再生混凝土并浇筑到模具内成型，拆模后在二氧化碳存在下进行矿化养护，得到再生混凝土制品。该方法既提升了建筑固体废弃物原料和再生混凝土制品的性能，保证建筑固体废弃物的全利用，又实现了混凝土从原材料到制品生产全过程的二氧化碳封存利用，为实现碳中和目标提供一种途径。
Method for preparing recycled concrete product by utilizing and sealing carbon dioxide
The invention belongs to the technical field of recycled concrete preparation, and particularly relates to a method for preparing a recycled concrete product by utilizing and sealing carbon dioxide. The method comprises the steps of crushing and screening the building solid waste to obtain coarse aggregate, fine aggregate and regenerated micro powder; soaking the coarse aggregate, the fine aggregate and the regenerated micro powder in water, taking out, and performing mineralization strengthening in the presence of carbon dioxide; stirring and mixing the mineralization strengthened coarse aggregate, fine aggregate, regenerated micro powder, cement, a mineral admixture, an admixture, fibers and water to obtain freshly mixed regenerated concrete, pouring the freshly mixed regenerated concrete into a mold for molding, and performing mineralization maintenance in the presence of carbon dioxide after demolding to obtain a regenerated concrete product. According to the method, the performance of the building solid waste raw material and the recycled concrete product is improved, full utilization of the building solid waste is guaranteed, carbon dioxide storage and utilization of the concrete in the whole production process from the raw material to the product are achieved, and a way is provided for achieving the carbon neutralization target.
本发明属于再生混凝土制备技术领域，具体涉及一种利用并封存二氧化碳制备再生混凝土制品的方法。包括以下步骤：将建筑固体废弃物破碎、筛分，得到粗骨料、细骨料和再生微粉；将粗骨料、细骨料、再生微粉用水浸泡后取出，在二氧化碳存在下进行矿化强化；将包括矿化强化后的粗骨料、细骨料、再生微粉和水泥、矿物掺合料、外加剂、纤维、水的物料搅拌混合，得到新拌再生混凝土并浇筑到模具内成型，拆模后在二氧化碳存在下进行矿化养护，得到再生混凝土制品。该方法既提升了建筑固体废弃物原料和再生混凝土制品的性能，保证建筑固体废弃物的全利用，又实现了混凝土从原材料到制品生产全过程的二氧化碳封存利用，为实现碳中和目标提供一种途径。
Method for preparing recycled concrete product by utilizing and sealing carbon dioxide
一种利用并封存二氧化碳制备再生混凝土制品的方法
WANG ZHAOJIA (Autor:in) / HUANG TIANYONG (Autor:in) / LIU QI (Autor:in) / LI LINKUN (Autor:in) / WANG JIXIANG (Autor:in) / LI YANG (Autor:in) / FANG GUIMING (Autor:in) / PENG BO (Autor:in) / CHEN XUFENG (Autor:in)
11.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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