Thin Asphalt Concrete Overlays (2014) / Chapter Skim
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Pages 29-38
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29 appendix a Survey Questionnaire 1. What is your agency's definition of "thin" asphalt concrete overlay?
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30 Local routes Low traffic volume routes Only for certain types of pavement distress (please specify)
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31 Loss of surface texture/low friction Raveling Rutting Cracking (fatigue, block, or thermal)
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32 Based on traffic volume or ESAL; specify criteria Based on condition of existing pavement Other (please specify)
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33 12. What mix design method is used?
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34 Flow Number (AASHTO TP 79) Dynamic Modulus (AASHTO TP 79)
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35 3 × NMAS 4 × NMAS 18. How is density specified?
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36 500,000–less than 1 million >1 million 21. If special procedures are used to maintain surface condition (texturing, grinding, fog seal, etc.)
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37 10–12 years >12 years 24. If there is a large range in service life (more than one answer checked in previous question)
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38 27. Are warranties required for thin asphalt concrete overlays?
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