HIGH PERFORMANCE GUNNING MIX WITH ALUMINA PLASTICISER

摘要

CT10SG is a special calcined alumina which has high water retaining property and is ideal to add stickiness to gunning mixes. CT10SG as a new plasticiser was studied in high performance gunning mixes as replacement for conventional plasticizer such as soft clay and silica fume. Matrix slurries and laboratory test bars from the gunning mixes were investigated at Wuhan University of Science and Technology. The matrix study showed that the slurry containing CT10SG had an equivalent rheological behaviour when compared to that with traditional plasticisers. Tabular alumina based gunning mix with CT10SG displayed good consistency and stickiness, high volume stability (low permanent linear change), high hot modulus of rupture and good slag resistance.