What do you mean by no fines concrete, Civil Engineering

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Q. What do you mean by No fines concrete?

Sometimes no fines concrete is used in houses due to its good thermal insulation properties. Essentially no fines concrete comprises coarse aggregates and cement without any fine aggregates. It is vital that no fines concrete must be designed with a certain amount of voids to enhance thermal insulation. Size of these voids must be large enough to avoid the movement of moisture in the concrete section by capillary action. It is common for no fines concrete to be used as external walls in houses since rains falling on the surface of external walls can only penetrate a short horizontal distance and then falls to bottom of the walls. The use of no fines concrete assures good thermal insulation of the house.


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