21.
DPC materials can be classified into:

22.
DPC materials should ideally be flexible, where differential thermal movements occur.

23.
Which of the below is an example of semi rigid DPC material?

24.
For DPC at plinth level, which grade of concrete is used?

26.
PSC stands for:

27.
__________ is used to construct very thin, hard and strong surface.

28.
The compression in PSC is done by _________ of high-strength tendons.

29.
In an R.C.C structure, the tension zone lies in the:

30.
R.C.C. was developed and first used by: