A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CEMENTITIOUS MATERIAL REINFORCED WITH CHEMICALLY TREATED CELLULOSE FIBER
The present invention relates to a fiber-reinforced cement based or cementitious material, and a process for making, where the reinforcing fiber is chemically treated cellulose or non-cellulose fiber. The fiber reinforced cementitious material includes (i) cement, (ii) optionally, sand, aggregate, or sand and aggregate, and (iii) chemically treated fibers having a polyvalent cation content of from 0.1 weight percent to 5.0 weight percent based on the dry weight of the treated fibers, and having a content of one further treatment agent of 0.5 weight percent to 10 weight percent based on the dry weight of the treated fibers, said further treatment agent being selected a buffer salt that provides a solution having a pH of less than 7, a combination of buffer salts with their acids providing a solution in water having a pH of less than 7, insoluble metal hydroxide, and one or more alkali stable anti-oxidant chemicals or alkali stable reducing agents.
CEMENTITIOUS MATERIAL REINFORCED WITH CHEMICALLY TREATED CELLULOSE FIBER
The present invention relates to a fiber-reinforced cement based or cementitious material, and a process for making, where the reinforcing fiber is chemically treated cellulose or non-cellulose fiber. The fiber reinforced cementitious material includes (i) cement, (ii) optionally, sand, aggregate, or sand and aggregate, and (iii) chemically treated fibers having a polyvalent cation content of from 0.1 weight percent to 5.0 weight percent based on the dry weight of the treated fibers, and having a content of one further treatment agent of 0.5 weight percent to 10 weight percent based on the dry weight of the treated fibers, said further treatment agent being selected a buffer salt that provides a solution having a pH of less than 7, a combination of buffer salts with their acids providing a solution in water having a pH of less than 7, insoluble metal hydroxide, and one or more alkali stable anti-oxidant chemicals or alkali stable reducing agents.
CEMENTITIOUS MATERIAL REINFORCED WITH CHEMICALLY TREATED CELLULOSE FIBER
MIT CHEMISCH BEHANDELTER CELLULOSEFASER VERSTÄRKTES ZEMENTARTIGES MATERIAL
MATÉRIAU CIMENTAIRE RENFORCÉ DE FIBRE DE CELLULOSE TRAITÉE CHIMIQUEMENT
COOK JEFFREY TODD (author) / SCHOGGEN HOWARD LEON (author) / BELL ROBERT IRVIN (author) / SMITH DAVID JAY (author) / MORTON GERALD HUNT (author)
2018-12-26
Patent
Electronic Resource
English
CEMENTITIOUS MATERIAL REINFORCED WITH CHEMICALLY TREATED CELLULOSE FIBER
| European Patent Office | 2018