Usually an asphalt with 20mm aggregate is thicker than the one with only 10mm aggregate. a. False b. True Stone mastic
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Usually an asphalt with 20mm aggregate is thicker than the one with only 10mm aggregate. a. False b. True Stone mastic
Stone mastic asphalt is different from fine gap graded asphalt because it has more coarse aggregate. a. False O b. True
In decreasing relative noise levels of new bituminous surfacings, which one of the following is correct? O a. Spray seal (7mm), fine gap graded asphalt, stone mastic asphalt O b. Open graded asphalt, Stone asphalt, fine gap graded asphalt Fine gap graded asphalt, open graded asphalt, stone mastic asphalt O d. Spray seals (10mm), stone mastic asphalt, dense graded asphalt
One of the advantages of Dense garded asphalt is that most contractors and producers are familiar with its production and placement. a. False O b. True
One of the advantages of Dense garded asphalt is that most contractors and producers are familiar with its production and placement. O a. False O b. True
Why is Stone mastic asphalt an expensive mix? O a. It uses more binder O b. It uses a lot of large aggregate O C. It has more filler O d. It has high resistance to shear force
Which one the following asphalt is best for good texture and high resistance to shear force? O a. Dense graded asphalt O b. Stone mastic asphalt O c. Gap graded asphalt . O d. Open graded asphalt
Which one the following is true about Dense Graded asphalt? O a. It can accommodate high binder contents without becoming unstable and susceptible to rutting O b. It has a low design air void content of about 3 to 7% O C. It cannot be used for heavily trafficked road because it has a low shear resistance O d. It has about 8 – 12 % of filler