Demonstration of the Process on Fly Ash Bricks at Unchahar (UP)

 

Process for the manufacture of clay flyash bricks was demonstrated at the brick kiln site of Sh. Manjeet Singh Chawala in Raibarelie (UP) which was attended by over 85 participants largely representing the member of  Distt. Brick Kiln Owners Associations Raibarelie.

 

 

The programme was conducted in collaboration with Flyash Mission, New Delhi and FG Thermal Power Station, Raibarelie under National Thermal Power Corporation.   About two thousand bricks were made with 25 

 

percent addition of flyash at the kiln site during April 6-7, 2004 and equal number of bricks were made using clay mass available at the kiln site as control samples. Bricks were dried in open as per conventional practice. Dried bricks were fired in the fixed chimney Bull’s trench kiln at temperature ranging between 980ºC to 1020ºC with a soaking period of 5 to 7 hours. Fired bricks were evaluated for compressive strength, water absorption properties. The results show that the quality of clay flyash bricks was in conformity with the prescribed values of Bureau of Indian Standard Specification. The participants showed keen interest in the process of making clay fly ash bricks and agreed to adopt the process.