Lal Chand Anand & Sons Bulandshahr Road Industrial Area, Ghaziabad, Uttar Pradesh

Excavacation reveals the existence of prehistoric terra-cotta finds comprising of utensils, toys and even carved statues predicting the sense of development in the Ceramic art making those times and its firing in definitely closed Chambers, though not at higher degree of temperature. Some times Glazed pot is dug-out indicating the knowledge of low temperature vitrification of glazed material applied on earthen surfaces. The excavation and the findings, as archaeological experts depict, the nature of wares are made more than thousand years ago. These wares and earthen structures are still unaffected by weather or presence of acidic or alkali soil even after prolong contact with soil though highly porous.

Fire clay refractory are classifieds into moderate heat duty (IS:6), High heat duty (IS:8) and high alumina refractory. Number of tests have been prescribed in standard (IS:6 or IS:8) whatever the case may be. However tests to be conducted in each case would depend on the service conditions for which refractory bricks are required and can be decided between the purchaser and the manufacturer. Two standards have been prescribed as per the mode of manufacturing item; be it SPECIAL SHAPES or BOTTOM POURING SETS.