Answer only
12,.Asphalt surfaces become grey in colour and brittle with time due to oxidation.
Group of answer choices
True
False
13.Higher binder content may lead to excessive bleeding.
Group of answer choices
True
False
14.
Durability, noise and traffic turning movements are some of the factors considered in choosing between spray seal and asphalt.
Group of answer choices
True
False
16.
An increase of only several % in air voids increases life of the asphalt surfacing dramatically.
Group of answer choices
True
False