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
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.