Experiments were carried out to eliminate strength retrogression and unusua
lly fast setting characteristics of an unusually fast setting cement with a
Blaine surface area > 7000 cm(2)/g. A solid retarder, a solid HRWRA, and a
superfine fly ash were incorporated in the ultrafine cement To improve its
properties. The changes in the important physical, chemical, and other ass
ociated properties that result from such additions are reported. (C) 2001 E
lsevier Science Ltd. All rights reserved.