Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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 (Autor:in) / SCHOGGEN HOWARD LEON (Autor:in) / BELL ROBERT IRVIN (Autor:in) / SMITH DAVID JAY (Autor:in) / MORTON GERALD HUNT (Autor:in)
19.09.2018
Patent
Elektronische Ressource
Englisch
CEMENTITIOUS MATERIAL REINFORCED WITH CHEMICALLY TREATED CELLULOSE FIBER
| Europäisches Patentamt | 2018