Fly Ash Bricks

1740 Words Jan 31st, 2013 7 Pages
Project Profile
Flyash Bricks & Pavement Tiles
( COMBINED )
Product: Flyash Bricks & Pavement Tiles
Product Code (Based on NIC -2004) for Bricks & Tiles: 26921
Product Code: (Based on ASICC -2000) for Bricks & Tiles: 29102
Production Capacity:
Quantity : 24,00,000 nos of bricks Value Rs.37,20,000
Month & Year of Preparation : December 2010
Prepared by :
Branch MSME Development Institute
New Colony, RAAGADA-765001 (Odisha)
Phone/Fax: 06856-222268
Email: brdcdi-raya@dcmsme.gov.in
INTRODUCTION :
Fly ash, Lime calcined gypsum and sand, with requisite quantity of water is mixed in proper proportions which produces slow setting cement, the resultant mass pressed is in to bricks of any desired strength.
These bricks can be used
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Installation of machines : 6-7
VII. Power connection : 6-7
VIII. Trial run : 7-8
IX. Commencement of production : 9 onwards.
PROCESS OF MANUFACTURE :
Fly ash (70%) Lime (10%) Gypsum(5%) and sand (15%) are manually fed into a pan mixer where water is added in the required proportion for homogeneous mixing. The proportion of raw material may vary, depending upon quality of raw materials. After mixing, the mixture is shifted to press. The bricks are placed on wooden pallets and transported to open area where they are dried and water cured for 21 days. The bricks are tested and sorted before dispatch.
The manufacture of pavement tiles consists of following process :
• Grinding the fly ash/lime/gypsum compound in a pan-mixer to make a cementius compound.
• Grinding the necessary materials and pigments along with cement in a ball mill, which is used for the top-coat.
• Feeding the above materials into the machine and making the product by compressing the aggregates.
• Removing and staking the products for curing.
• Delivering the product.
INSPECTION AND QUALITY CONTROL :
The Bureau of Indian Standards has formulated and published the specifications for maintaining quality of product and testing purpose. IS :
12894 : 2002. Compressive strength achievable : 60-250 Kg/Cm.Sq.
Water absorption : 5-12%; Density : 1.5 gm/cc Coefficient of softening
(depending upon water consistency factor) Unlike conventional clay bricks fly ash