The main constituent of fly-ash is
...The main constituent of fly-ash is
aluminium oxide
silica
ferrous oxide
All of these
Correct answer is D
No explanation has been provided for this answer.
For the manufacture of Portland cement, the proportions of raw materials used are ...
Varnish is a transparent or semi-transparent solution of resinuous substances in ...
Pick up the hypabyssal rock from the following ...
The initial setting time of lime-pozzolana is ...