The section contains multiple choice questions and answers on special concrete light weight and structural light weight concrete lwc mix design aerated concrete concrete cloth hot and cold weather concreting mix design testing methods and new generation plasticizers. No-Fines Concrete is a lightweight concrete made up of only coarse aggregate cement and water by omitting fines sand or fine aggregates from normal concrete.
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There are two approaches for the design of beams.
. No-fines concrete is becoming. The design of concrete beam includes the estimation of cross section dimension and reinforcement area to resist applied loads. Advantages limitations and mix proportions of no-fines concrete is discussed.
Firstly begin the design by selecting depth and width of the beam then compute reinforcement area. Very often only single sized coarse aggregate of size passing through 20 mm retained on 10mm is used. Secondly assume reinforcement area then calculate cross section sizes.
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