What is the coefficient of thermal expansion and how is it used with regard to concrete masonry?
What will be an ideal response?
The coefficient of thermal expansion is used to calculate the amount of expansion that can be expected as temperatures change. Concrete masonry units expand when heated and contract when cooled. These changes are reversible, and the unit returns to its original size after the temperature returns to the point at which the change started. Since the aggregate makes up about 80 percent of a unit, the coefficient of expansion of the aggregate is a major factor influencing expansion and contraction of the concrete masonry unit.
You might also like to view...
____________________ loads require more torque at low speed and less torque at high speed.
Fill in the blank(s) with the appropriate word(s).
The applied voltage does not have to exceed the breakover voltage in order for conduction to begin on a(n) _____.
a. diac b. junction field-effect transistor c. SRC d. triac
One would expect well drained soils to have the highest organic matter contents where the climate is ________
A) cool and dry B) warm and humid C) cool and humid D) warm and dry
A surface upon which all points are the same distance from a common axis refers to ____.
A. cylindricity B. circularity C. parallelism D. concentricity