Investigation of effective parameters on the properties of the high strong Chamotte based low - cement refractory castable

In this research the effective parameters on properties of chamotte based low cement castable with vibration during installation was investigated so that to reach high strength in these castables. \"In this regard the most important parameters are type & amount of deflocculant additives and particles size distribution about which their effect on flow ability، amount of water needed، physical and chemical properties of these bodies had been evaluated after dried to 110 º C. Results show that chamotte based low cement castable with high strength can be obtained using suitable particles size distribution according to Andreasen equation with distribution coefficient (q) of 0. 26. This also requires the best suited deflocculant additives with optimum amount of Polycarboxylate ether with 0. 08 %wt.