发明授权
- 专利标题: Method for preparing bittern-carbonization synergistic reinforced recycled aggregate
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申请号: US18585108申请日: 2024-02-23
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公开(公告)号: US12017956B1公开(公告)日: 2024-06-25
- 发明人: Changjiang Kou , Jiyang Sun , Zhiwei Sun , Yu Lu , Rongxue Fan , Peng Xiao , Aihong Kang , Zhengguang Wu
- 申请人: Yangzhou University
- 申请人地址: CN Jiangsu
- 专利权人: Yangzhou University
- 当前专利权人: Yangzhou University
- 当前专利权人地址: CN Yangzhou
- 优先权: CN 2310442902.X 2023.04.23
- 主分类号: C04B20/10
- IPC分类号: C04B20/10 ; C04B18/167
摘要:
Disclosed is a method for preparing bittern-carbonization synergistic reinforced recycled aggregate, including the following steps: spray pretreatment: performing alternate spraying on recycled aggregate with bittern and lime milk at intervals for many times at 4-70° C. and a pressure of 0.05-0.6 MPa; carbonization reinforcement: introducing waste gas containing carbon dioxide for a retention time of 4-8 h after the recycled aggregate is allowed to stand for 2-4 h; and rinsing and air drying: removing soluble impurities on a surface of the recycled aggregate by rinsing in water, and performing air-drying on the recycled aggregate to obtain bittern-carbonization synergistic reinforced recycled aggregate. According to the present disclosure, the effective reinforcement of recycled aggregate at normal temperature and pressure in a short time is realized, and the method is simple in process and is convenient in operation.
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