A new way to preparing non-autoclaved and unburned brick using the titanic bearing BF-slag

摘要

The slag non-autoclaved and unburned brick(SNAUB) was prepared on laboratory scale using the high titania BF slag (HTBFS) as aggregate, styrene-acrylate emulsion as cementing materials and two admixtures. Factors such as amounts of admixtures and styrene-acrylate emulsion, forming pressure and curing system on product properties were studied. The optional conditions for preparing the SNAUB were obtained as following : admixture 1 8%-10%, admixture 2 8%-9%, styrene-acrylate emulsion 8%-10%, forming pressure 30MPa, curing time 7d. The properties of the SNAUB are better than that of MU 25.