setup in the laboratory, as shown in the igure, where two identical dense sand amples A and B are placed-one orizontally and the other vertically. he samples are 50 mm diameter and D0 mm in length. The water levels in e left and right sides are maintained the levels shown, ensuring constant ad throughout the test. The void io of the sand is 0.92 and the ecific gravity of the grains is 2.69. If 5 g of water was collected in the cket within 15 minutes, 1. What is the permeability of the 190 mm Datumn 40 mm 100 mm B

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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.