Impact of Asphalt Thickness on Pavement Quality (2019) / Chapter Skim
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Pages 51-54
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51 This chapter summarizes the overall findings of the synthesis. Last, it points out gaps in the state of the knowledge and topics that could be the subject of additional research, as observed by survey respondents and the literature review.
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52 Impact of Asphalt Thickness on Pavement Quality compaction of coarse mixes. As air void content increases, density decreases and the likelihood of excessive permeability increases.
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Conclusions and Further Research 53 issues, maintaining cross-slopes and curb heights, scratch courses, to limit drop-offs, and to control costs. About half the contractors responding indicated they would ask for exceptions in some cases such as anticipated compaction issues, smoothness requirements, late season paving, and maintenance of traffic issues.
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From page 54... ...
54 Impact of Asphalt Thickness on Pavement Quality At the other extreme, the Maryland DOT has put in place definitions of thin lifts and procedures for determining density of thin lifts. A test strip is constructed, and nuclear gauge readings are correlated to cores.
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