Social Sciences, asked by melissagan2515, 9 months ago

Roads made of coal and concrete

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Answered by Anonymous

Answer:

Rigid pavement. Flexible pavement is made up of Col- Tar (as u mentioned) and Rigid pavement is made up of CEMENT CONCRETE (yes road are also made up of cement). Now come to another point you are saying cement dose not washed off in water logging and Col- tar does.

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