Q/ For the given sieve analysis test of a soil sample, find the following: 1. The percentage of soil passing through each sieve. 2. Draw the grain size distribution curve using Semi-Log paper. 3. D10, D30 and Do. 4. The coefficient of uniformity and the coefficient of gradation. Sieve Sieve diameter Retained No. (mm) (gm) 4 4.75 19.7 10 2.0 42.8 20 0.85 76.2 40 0.425 128.5 60 0.25 108.3 100 0.15 12.5 200 0.074 8.4 Pan 3.6 ---- -

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Asphalt Binders and Mixtures

Asphalt binders are subsidiary products procured during the refining process of petroleum while manufacturing gasoline, diesel, and similar petroleum products. Asphalt binders are obtained from the residue that remains after the distillation of petroleum, this residue is further subjected to steam distillation and oxidation to remove the traces of gas oil present in the residue. Certain additives or modifiers are also added to asphalt binders to alter them to suit different applications.