K. Kovler, SETTING AND HARDENING OF GYPSUM PORTLAND-CEMENT SILICA FUME BLENDS, PART 2 - EARLY STRENGTH, DTA, XRD, AND SEM OBSERVATIONS, Cement and concrete research, 28(4), 1998, pp. 523-531
Citations number
6
Categorie Soggetti
Construcion & Building Technology","Material Science
The present work describes a study of setting and hardening of fresh b
lends of gypsum binder, Portland cement, and silica fume. Such blends
can possess the advantages of gypsum (early hardening, high early stre
ngth, enhanced workability) and Portland cement (improved durability i
n moist conditions), but are free of the deleterious effect of ettring
ite and thaumasite, which an formed when gypsum and Portland cement in
teract. In part 1, the temperature and setting expansion dependencies
in time are described. The influence of superplasticizer on setting an
d hardening of gypsum, gypsum-cement, and gypsum-cement-silica fume mi
xes is analyzed. In part 2, the data of early strength, DTA, XRD, and
SEM observations are reported and discussed. (C) 1998 Elsevier-Science
Ltd.