QUESTION $3$

A single surface seal is to be applied to the surface of a road in Durban. A

$13,2mm$ chip with an average $5\%$ embedment and a $0,5mm$ texture depth is to

be used. The daily traffic each way is $4850$ vehicles of which $10\%$ are heavies

with an equivalency factor of $1,3$ elv$/$heavy$.$

Determine the minimum and maximum values of the net cold binder required,

given the following,

Road gradient is $5\%$

The ALD $8,50$mm

The corrected ball penetration to be used in both lanes is $1$ mm

Adjust the texture depth, climate and then gradient. Calculate also the hot spray

rate is NATREF MC $70$ cutback bitumen is to be used$\mathrm{.}0$