Answer:
Polyblend is a fine powder of recycled
modified plastic. The binding property of plastic makes the road last longer
besides giving added strength to withstand more loads .This is because
(i) Plastic increases the melting point
of the bitumen which would prevent it from melting in India's hot and extremely
humid climate, where temperature frequently cross 50°C.
(ii) Rainwater will not seep
through because of the plastic in the tar.
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