Light Weight Concrete and Pre-cast Concrete.

Light Weight Concrete :

The lightweight concrete is a concrete whose density varies from 300 to 1850 kg/

M³.

Advantages:

i)Reduction of dead load.

ii)Increases the progress of the building.

iii)Lowers haulage and handling cost.

Pre-cast Concrete :

Pre cast concrete products very from simple structures such as fencing posts,pipes,paving slabs etc.

Advantages:

i)It is not necessary to provide joints.

ii)The labor required in the manufacturing process of the pre-cast unit easily trained.

iii)The pre-cast articles may give the desired shape and finish with accuracy.

iv)The structure can be dismantled when required and they can be suitably used.

Disadvantages :

i)If not properly handled the pre-cast units may be damaged during transport.

ii)It becomes difficult to produce satisfactory connections both the pre-cast members.