For constructing a terrazzo floor, Pick up the incorrect statement from the following: A. A base course is prepared as in cement concrete flooring B. 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 C. Glass strips are driven into the layer according to the pattern required D. After final grinding is over, oxalic acid mixed with water is spread over and rubbed hard with soft material

The correct answer is: C. Glass strips are driven into the layer according to the pattern required.

A terrazzo floor is a type of flooring that is made from a mixture of cement, marble chips, and other aggregates. It is a durable and attractive flooring option that can be used in a variety of settings.

To construct a terrazzo floor, the following steps are typically followed:

1. A base course is prepared as in cement concrete flooring. This involves excavating the ground to the desired depth and then compacting the soil. A layer of sand or gravel is then added and compacted.
2. 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. The concrete should be allowed to dry completely before proceeding to the next step.
3. Glass strips are embedded into the concrete according to the desired pattern. The strips should be flush with the surface of the concrete.
4. A terrazzo topping is applied to the concrete. This topping is a mixture of cement, marble chips, and other aggregates. It is applied in a thin layer and then trowelled smooth.
5. The terrazzo topping is allowed to dry completely. Once it is dry, it is polished to a high shine.

The statement “Glass strips are driven into the layer according to the pattern required” is incorrect because glass strips are embedded into the concrete, not driven into it.