8- when small quantities of concrete have to be mixed by hand used 9- The average rate mixing time about one minute to ... minutes. 10- is a some of the water in the mix tends to rise to the surface of freshly placed concrete

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A: Given: GPS

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A: This question is from Environmental engineering.

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A:

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A: Manual manufacturing process involves the full involvement and functioning of the machinery.

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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.