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 32 mm thick layer of cement concrete (1 : 2 : 4) is laid on the base course and the surface is made smooth by trowelling
A base course is prepared as in cement concrete flooring

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Building Construction
Slate

Possesses good water absorption capacity
Is a metamorphic rock
Has a smooth surface and contains alumina and silica
Splits into thin sheets along its bedding planes

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