Gypsum-lime expanders based on citrogypsum.

The possibility of using citrogypsum was determined for production of gypsum-lime expanders. When introducing additives based on lime and citrogypsum into cement the expansion is slower than when introducing expanders based on modified quicklime. The best way to obtain expanding cement is mechanical mixing of the expander based on modified lime and Portland cement.

Author: L.L. Nesterova, I.G. Luginina, L.S. Schelokova, D.V. Leontieva

Section: Waste utilization

Keywords: Portland cement; expansion agent; citrogypsum; lime