Question: Asphalt pavement construction requires using a paver and a set of rollers. Please answer the following questions: a . During paving a traffic accident delayed

Asphalt pavement construction requires using a paver and a set of rollers. Please answer the following questions:

.

During paving a traffic accident delayed the delivery of asphalt mixture. The paver operator had too options;

1 .

slow down the paver, or

2 .

finish the mixture available and stop. Which do you recommend and why.

.

During paving on a hot summer day, roller operator observed that mixture is too soft and roller is sinking in surface. What do you suggest the operator do to deal with this problem?

.

A contractor observed that pavement surface started showing mixture segregation and there were spots showing non

-

homogenous mixture. The inspector indicated that this could be a problem with paver equipment, truck loading and hauling, or plant operation. Can you please indicate what is she talking about? How can paver, truck or plant operation result in segregation?

.

A contractor is trying very hard to estimate resistance to compaction in the field by using the gyratory compactor. Would you please suggest a method for her? Please draw and carefully explain the approach.

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