Question

Which of the following construction and demolition materials would be most useful in making concrete?
O Scrap tires
O Fly ash
O Blast furnace slag
O Old gypsum drywall​

Answer 1

Explanation:

As waste materials from construction can be: wood, drywall, masonry, metal, concrete, plastic, glass, cardboard. The construction waste quantities are bigger in metropolitan areas, where there are more buildings. Usually the construction waste is storage in landfills.