Question

The linear thermal coefficient of expansion lies between approximately ____________

(a) 5.4 * 10^-6 and 12.6 * 10^-6 per ^oC

(b) 10.8 * 10^-6 and 16.2 * 10^-6 per ^oC

(c) 5.8 * 10^-6 and 14 * 10^-6 per ^oC

(d) 10.8 * 10^-6 and 12.6 * 10^-6 per ^oC

I had been asked this question in exam.

My question comes from Thermal Properties topic in section Aggregates and Testing of Aggregates of Concrete Technology

Answer 1

Correct option is (c) 5.8 * 10^-6 and 14 * 10^-6 per ^oC

For explanation: The linear thermal coefficient of expansion lies between approximately 5.8 * 10^-6 and 14 * 10^-6 per ^oC depending upon the type of aggregates.