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Titolo:
VIBRATION DAMPING ADMIXTURES FOR CEMENT
Autore:
FU XL; CHUNG DDL;
Indirizzi:
SUNY BUFFALO,COMPOSITE MAT RES LAB BUFFALO NY 14260
Titolo Testata:
Cement and concrete research
fascicolo: 1, volume: 26, anno: 1996,
pagine: 69 - 75
SICI:
0008-8846(1996)26:1<69:VDAFC>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
1
Recensione:
Indirizzi per estratti:
Citazione:
X.L. Fu e D.D.L. Chung, "VIBRATION DAMPING ADMIXTURES FOR CEMENT", Cement and concrete research, 26(1), 1996, pp. 69-75

Abstract

The loss and storage moduli, and tan delta, of cement pastes were measured at 25-150 degrees C and 0.2-2.0 Hz. The addition of latex or methylcellulose increases all three quantities, though latex is more effective in increasing tan delta, while methylcellulose is more effectivein increasing the storage modulus. The addition of silica fume also increases all three quantities. The addition of short fibers increases all three quantities if the mix contains no other additive; it increases only tan delta and loss modulus if the mix contains methylcellulose; it decreases all three quantities if the mix contains either latex or (methylcellulose + silica fume). For energy dissipation applications, a mix with latex is recommended at >1.5 Hz, whereas a mix with methylcellulose + silica fume is recommended at <1.5 Hz; the use of fibers is not recommended.

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Documento generato il 29/11/20 alle ore 18:14:36