What function does iron oxide perform in cement?(a) Increases strength(b) Makes cement sound(c) Increases setting time(d) Acts as fluxThe question was asked in class test.I would like to ask this question from Ingredients of Cement topic in section Materials for Construction of Basic Civil Engineering

What function does iron oxide perform in cement?(a) Increases strength

1.	What function does iron oxide perform in cement?(a) Increases strength(b) Makes cement sound(c) Increases setting time(d) Acts as fluxThe question was asked in class test.I would like to ask this question from Ingredients of Cement topic in section Materials for Construction of Basic Civil Engineering
Answer» The correct ANSWER is (d) Acts as flux The best explanation: Iron oxide acts as a flux, in addition to being RESPONSIBLE for imparting COLOUR to cement.If the temperature goes higher, then iron oxide reacts with aluminium and calcium and results in the formation of calcium aluminate FERRITE.

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