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

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
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

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Building Construction
Grillage foundation

Is used to transfer heavy structural loads from steel columns to a soil having low bearing capacity
Does not require deep cutting as the required base area with required pressure intensity is obtained at a shallow depth
All listed here
Is light and economical

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