公开(公告)号：US20230042195A1

公开(公告)日：2023-02-09

申请号：US17864987

申请日：2022-07-14

申请人： Hip Hing Construction Technology Limited

发明人： Honggang ZHU ,  Shichang YE ,  Xiaohu ZHU ,  Kwok-Leung SO ,  Pui-Lam NG

IPC分类号： C04B14/18 ,  C04B20/10 ,  C04B20/00

摘要： The present invention discloses inorganic pelletized perlitic lightweight granules and a preparation process and use thereof. The present invention develops through encapsulation technology a novel type of lightweight particles, namely, inorganic pelletized perlitic lightweight granules comprising expanded perlite as a core material and a cementitious material as a shell material, forming a core-shell structure in which a perlite core is encapsulated in a cementitious shell. The cementitious material including cement and fly ash is coated onto the surface of expanded perlite particles through an encapsulation process by a pelletizer under controlled water spraying. The resulting inorganic pelletized perlitic lightweight granules are lower in cost and easier to produce, and have better fire resistance, higher crushing strength, and better compatibility with concrete. The inorganic pelletized perlitic lightweight granules can overcome the problems of conventional lightweight concrete, such as high water absorption and inconsistent performance.