Building Construction
For constructing a terrazzo floor, Pick up the incorrect statement from the following:

After final grinding is over, oxalic acid mixed with water is spread over and rubbed hard with soft material
Glass strips are driven into the layer according to the pattern required
A base course is prepared as in cement concrete flooring
A 32 mm thick layer of cement concrete (1 : 2 : 4) is laid on the base course and the surface is made smooth by trowelling

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Building Construction
Raft foundations are used for:

Spanning over small soft or loose pockets
All listed here
Providing increased area of foundation over poor bearing capacity of soil
Counter acting the hydrostatic effect

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