What is asphalt made from? does the smell of asphalt have any health effects? why does black asphalt turn gre?

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y after a while? is there anyway i can make asphalt?

2006-06-25 04:07:54 · 1 answers · asked by Smart_Guy 1 in Politics & Government ➔ Government

asphalt is a mixture of sand rock and emulsion. then heated to 340 F and laid and compressed as the oils in the emulsion degrade it turns grey

2006-06-25 04:22:14 · answer #1 · answered by Anonymous · 2⤊ 0⤋