公开(公告)号：US20180290923A1

公开(公告)日：2018-10-11

申请号：US15946806

申请日：2018-04-06

申请人： JIAHUAN YU ,  GEORGE JIEBAO YU

发明人： JIAHUAN YU ,  GEORGE JIEBAO YU

IPC分类号： C04B7/32

摘要： The present invention belongs to the field of composite materials, particularly to an underwater non-dispersible quick-setting and rapid-hardening cement-based composite material and the preparation method and application thereof. The material consists of the following raw materials in percentage by weight: 32%-34% of silicate cement, 8.8%-9% of calcium aluminate, 5%-7% of magnesium oxide, 0.5%-2% of sulfur trioxide, 0.2%-0.3% of polycarboxylate high performance water-reducing agent, 0.3%-0.7% of flocculant, 0.05%-0.2% of setting accelerator, 0.05%-0.2% of air-entraining agent, 0.05%-0.3% of rust inhibitor, 26%-31% of fine aggregate, 13%-18% of coarse aggregate, and 8.4%-8.5% of water. The material can be used for rapid repair of cement buildings in water conservancy projects, the repair material can be quickly set and the initial strength can be guaranteed.

公开(公告)号：US20200377411A1

公开(公告)日：2020-12-03

申请号：US15946775

申请日：2018-04-06

申请人： JIAHUAN YU ,  GEORGE JIEBAO YU

发明人： JIAHUAN YU ,  GEORGE JIEBAO YU

IPC分类号： C04B12/02 ,  C04B28/28 ,  C04B22/00 ,  C04B14/06 ,  C04B18/08 ,  C04B18/14 ,  C04B20/00

摘要： The present invention belongs to the field of composite materials, and particularly to a non-flowable quick-setting phosphate cement repair material with strong cohesive forces and the preparation method thereof. The material comprises the following raw materials in percentage by weight: 20% to 40% of sand, 5% to 12% of ammonium dihydrogen phosphate, 10% to 25% of magnesium oxide, 2% to 8% of fly ash, 30% to 60% of rubber powder, 6% to 10% of silica fume, 0.35% to 0.6% of a polycarboxylate high efficiency water-reducing agent, 1% to 5% of sodium silicate, 1.5% to 2% of a polypropylene fiber, 0.5% to 2% of a retarder, and 8% to 10% of water. The material is used as the repair material for the special positions of bottom boards of bridges or facades of buildings which are damaged, and the repair effect thereof is remarkable.