Question

Loss on Ignition (L.O.I.) is the loss in weight of cement after being heated to ____________

(a) 1000°C

(b) 100°C

(c) 500°C

(d) 1500°C

This question was posed to me by my college professor while I was bunking the class.

This is a very interesting question from Sampling in chapter Concrete Mix Design of Concrete Technology

Answer 1

Correct option is (a) 1000°C

Best explanation: It indicates the prehydration or carbonation due to prolonged or improper storage of cement & clinker.