Answer Posted / ritesh

Advantages outweigh the disadvantages of using Fly Ash
Bricks over Clay Bricks.
Fly Ash Bricks Advantage:
1. Due to perfect size savings in cement mortar for making
the walls and plastering by 20-40%
2. Strength of supplied lot is similar.
3. Plaster of Paris, Putty can be applied directly without a
backing coat of plaster.
4. Lower water penetration to Clay Bricks.
5. High Strength-can be used for load bearing walls.
6. Eco friendly using Fly Ash.

Fly Ash bricks Disadvantage:
1. Bonding is lower due to smooth finish, this can be easily
corrected by using a cement:sand mortar of 1:4 and proper
curing. Also the quality of sand needs to be checked.

Clay Bricks Disadvantage:
1. Uneven shape
2. Labour Intensive.
3. Inefficient Kilns Coal Fired -Pollution
4. Cutting of agricultural land and hills -Pollution and
against world food security.

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