MECHANICAL TREATMENTS OF FLY ASHES .3. STUDIES ON STRENGTH DEVELOPMENT OF GROUND FLY ASHES (GFA) - CEMENT MORTARS

Authors
PAYA J MONZO J BORRACHERO MV PERIS E GONZALEZLOPEZ E
Citation
J. Paya et al., MECHANICAL TREATMENTS OF FLY ASHES .3. STUDIES ON STRENGTH DEVELOPMENT OF GROUND FLY ASHES (GFA) - CEMENT MORTARS, Cement and concrete research, 27(9), 1997, pp. 1365-1377
Citations number
13
Categorie Soggetti
Construcion & Building Technology","Material Science
Journal title
Cement and concrete research → ACNP
ISSN journal
00088846
Volume
27
Issue
9
Year of publication
1997
Pages
1365 - 1377
Database
ISI
SICI code
0008-8846(1997)27:9<1365:MTOFA.>2.0.ZU;2-O
Abstract
Early and medium-term strength developments for mortars containing gro und fly ashes (GFA) were studied and compared with the behaviour of mo rtars containing non-mechanically treated fly ash. Linear correlations between mechanical properties and the logarithm of curing time for mo rtars containing 15-60% fly ash replacing percentages were established . Compressive Strength Gain (SGi) and Pozzolanic Effectiveness Ratio ( PER) were calculated, suggesting the increasing of pozzolanic activity with grinding of fly ash. A new mathematical model has been proposed for mechanical properties of mortars containing high replacing percent ages and for a wide curing time range. Optimums for mechanical propert ies were calculated for mortars containing GFA. (C) 1997 Elsevier Scie nce Ltd.