Blends of polyblend and bitumen, when used, help to increase road life by a factor of three.

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asked Mar 14, 2018 in Class XII Biology by nikita74 (-1,018 points)
Blends of polyblend and bitumen, when used, help to increase road life by a factor of three. What is the reason ?

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answered Mar 14, 2018 by vijay Premium (535 points)
Blends of polyblend and bitumen, when used to lay roads, enhanced the bitumen’s water repellant properties, hence helped to increase road life by a factor of three.

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