Asphalt Spread Rate

Question 1

_ x Gmm x __

What is the formula for TARGET/THEORETICAL spread rate?

Answer 1

t x Gmm x 43.3

t = thickness

Gmm = from mix design

Question 2

lb & sq yd

How do you calculate the ACTUAL spread rate?

Answer 2

Asphalt Weight Used (lb)

____________________________

Area Covered (sq yd)

Question 3

How do you change LF to SY?

Answer 3

LF x Width of Lane = sq ft

sq ft / 9 = SY

Question 4

What is the target % difference between the TARGET spread rate and the ACTUAL spread rate?

Answer 4

5%