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
ZEMENTÄRES MATERIAL VERSTÄRKT MIT CHEMISCH BEHANDELTEN CELLULOSEFASERN
MATÉRIAU À BASE DE CIMENT RENFORCÉ PAR DES FIBRES DE CELLULOSE SOUMISES À UN TRAITEMENT CHIMIQUE
COOK JEFFREY TODD (author) / SCHOGGEN HOWARD LEON (author) / BELL ROBERT IRVIN (author) / SMITH DAVID JAY (author) / MORTON GERALD HUNT (author)
2018-09-19
Patent
Electronic Resource
English
CEMENTITIOUS MATERIAL REINFORCED WITH CHEMICALLY TREATED CELLULOSE FIBER
| European Patent Office | 2018