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Titolo:
BOND STRENGTH AND CONTACT ELECTRICAL-RESISTIVITY BETWEEN CEMENT AND STAINLESS-STEEL FIBER - THEIR CORRELATION AND DEPENDENCE ON FIBER SURFACE-TREATMENT AND CURING AGE
Autore:
FU XL; CHUNG DDL;
Indirizzi:
SUNY BUFFALO,DEPT MECH & AEROSP ENGN BUFFALO NY 14260 NIAGARA MOHAWK POWER CORP SYRACUSE NY 00000 SUNY BUFFALO,COMPOSITE MAT RES LAB BUFFALO NY 14260
Titolo Testata:
ACI materials journal
fascicolo: 3, volume: 94, anno: 1997,
pagine: 203 - 208
SICI:
0889-325X(1997)94:3<203:BSACEB>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
CARBON-FIBER;
Keywords:
BOND STRENGTH; CEMENT; CONCRETE; CONTACT ELECTRICAL RESISTIVITY; CURING AGE; STAINLESS STEEL FIBER; SURFACE TREATMENT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
3
Recensione:
Indirizzi per estratti:
Citazione:
X.L. Fu e D.D.L. Chung, "BOND STRENGTH AND CONTACT ELECTRICAL-RESISTIVITY BETWEEN CEMENT AND STAINLESS-STEEL FIBER - THEIR CORRELATION AND DEPENDENCE ON FIBER SURFACE-TREATMENT AND CURING AGE", ACI materials journal, 94(3), 1997, pp. 203-208

Abstract

The contact electrical resistivity of the steel-cement interface was found to correlate strongly with the shear bond strength, so that it provides a nondestructive method of bond strength assessment. For as-received and acetone washed stainless steel fibers, the contact resistivity increased linearly with increasing bond strength because interfacial phase(s) of volume resistivity higher than that of cement paste enhanced the bonding. For acid washed stainless steel fibers the contact resistivity was lower; increased with decreasing bond strength, and increased during debonding, all due to the effect of interfacial voids; thus contact resistivity provided an indication of the progress of debonding. Acetone washing increased the bond strength, decreased the contact resistivity, and caused the contact resistivity to correlate linearly with the bond strength more strongly due to its cleansing action. The bond strength decreased and the contact resistivity increased with increasing curing age from 1 to 28 days for as-received and acetone washed stainless steel fibers, due to interfacial void content increase.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 17:09:05