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Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of portland cement. The component of Portland cement which first hardens is
A manufacturer of TV wants to make a profit of Tk. 300,000 on sale of 200 TV sets. It costs Tk. 10,000 each to make the first 100 TV sets and Tk. 7,500 each to make TV sets after the first 100 sets. What should be the selling price of each TV sets in Taka?
As compared to ordinary portland cement, high alumina cement has
As compared to ordinary portland cement, use of pozzuolanic cement
The compound of Portland cement which contributes to the strength after two to three years is
A manufacturer of TV wants to make a profit of Tk. 3,00,000 on sale of 200 TV sets. It costs Tk. 10000 to make each of the first 100 TV sets and Tk. 7500 make each TV set after the first 100 sets. What should be the selling price of each TV set?
Portland cement manufactured from pure white chalk and clay but free from iron-oxide, is known as
Main constituents of portland cement are calcium aluminate and
Ordinary Portland Cement এর Initial Setting Time কত?
The normal consistency of ordinary Portland cement is about