Asphalt 1 Test Review questions with accurate detailed solutions

Asphalt 1 Test Review questions with accurate detailed || || || || || || || ||




solutions


A thin layer of mix will cool at the same rate whether it is sunny or cloudy - ✔✔False
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A transverse joint should be compacted in the longitudinal direction unless the roller cannot
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compact the joint because site restriction then it is permissible to be compacted transversely -
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✔✔False



An approximate "rule of thumb" is for every _______ percent increase in air voids above (6 to
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7%) about _______ percent of the pavement life may be loss - ✔✔1 and 10
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An end plate (or end gate or edger plate) is attached to the end of the screed to restrict the outward
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movement of the mix around the end of the screed - ✔✔True || || || || || || || || || || ||




An extremely high paver speed - more than ______, for thick lift, may cause a lack of
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responsiveness of the screed - ✔✔83 feet per minute || || || || || || || ||




Butt joints are acceptable when traffic will not pass over the joint prior to the next paving
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operation - ✔✔True || ||




Durang, rolling, rolling wheels, are kept moist with water, and only enough fuel oil to avoid
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picking up material - ✔✔False || || || ||




Elimination of segregation is the responsibility of - ✔✔Those who produce and lay assault mix
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State Highway Departments who approve the design of the mix and inspect the final product
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, Manufacturers who designed the market machinery for the paving industry. || || || || || || || || ||




For asphalt mixes, it can be expected that approximately ______ to _____ percent of the
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theoretical maximum density of the mix will be realized in the mix when it passes out from under
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a vibratory paver screed - ✔✔70 to 80
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If the air voids are above ______ percent for a SM-9.5A, the mix will be permeable to air and
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water, and will not have the required durability - ✔✔7 to 8
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If the mat is being laid down at a facer rate, then it can be rolled, the solution should be to ______
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- ✔✔Slow down the paver
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Use larger, wider rollers. || || ||




Use more rollers || ||




If traffic will pass over the end of the paving, a butt joint will be permitted, provided proper
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compaction is achieved - ✔✔False || || || ||




If traffic will pass over the transverse joint, constructive slubbed wage, at least_____feet per inch
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of pavement depth, ahead of end of the full debt payment to provide for proper compassion and
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protection of the full depth pavement - ✔✔3 || || || || || || ||




It typically takes ___t ow lengths (the length between the toe point, and the screed) after a desired
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level is input for a screed to arrive at the new level - ✔✔5
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Cold lane - ✔✔A previously paved lane
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Hot lane - ✔✔A lane being currently placed
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