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Titolo:
OZONE TREATMENT OF CARBON-FIBER FOR REINFORCING CEMENT
Autore:
FU XL; LU WM; CHUNG DDL;
Indirizzi:
SUNY BUFFALO,COMPOSITE MAT RES LAB BUFFALO NY 14260 SUNY BUFFALO,COMPOSITE MAT RES LAB BUFFALO NY 14260
Titolo Testata:
Carbon (New York)
fascicolo: 9, volume: 36, anno: 1998,
pagine: 1337 - 1345
SICI:
0008-6223(1998)36:9<1337:OTOCFR>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTRINSICALLY SMART CONCRETE; ELECTRICAL-RESISTIVITY; MECHANICAL-PROPERTIES; TENSILE PROPERTIES; DAMAGE ASSESSMENT; SURFACE-TREATMENT; BOND STRENGTH; COMPOSITES; LATEX; MATRIX;
Keywords:
CARBON COMPOSITES; CARBON FIBERS; OXIDATION; MECHANICAL PROPERTIES; ELECTRICAL PROPERTIES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
42
Recensione:
Indirizzi per estratti:
Citazione:
X.L. Fu et al., "OZONE TREATMENT OF CARBON-FIBER FOR REINFORCING CEMENT", Carbon (New York), 36(9), 1998, pp. 1337-1345

Abstract

Ozone treatment of isotropic-pitch-based carbon fiber was found to increase the surface oxygen concentration and change surface oxygen fromC-O to C=O, thereby causing the contact angle between fiber and waterto be decreased to zero. Thus, the bond strength between fiber and cement paste was increased and the tensile strength, modulus and ductility of carbon fiber reinforced cement paste were increased. Moreover, the degree of dispersion of fibers in mortar was increased and the effectiveness of the fibers for reducing the drying shrinkage was improved. As a consequence, the strain sensing ability of carbon fiber reinforced mortar was improved in terms of increased gage factor and better repeatability. The ozone treatment did not affect the morphology, tensile strength or volume electrical resistivity of the fiber itself. (C) 1998 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 07:31:53