Annotated Literature Review for NCHRP Report 640 (2009) / Chapter Skim
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13 a porous asphalt mixture will provide an avenue for water to penetrate into the pavement structure, thereby, increasing the potential for pavement deterioration. 1.4.9 Limitations Ruiz et al indicate that the use of porous asphalt mixtures should be carefully studied prior to being placed in the following situations: • Areas of frequent snow • Urban or industrial areas • Areas with a high potential for reflective cracking • Bridge pavements.
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14 The authors did note that porous asphalt layers reduce tire/pavement noise by approximately 3dB(A) when compared to typical dense-graded wearing layers.
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15 problem in the temperate climate of the Netherlands. Salting operations are the typical method of dealing with icy roads.
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16 One area that dense-graded and porous asphalt mixes were compared was in terms of dynamic modulus. The authors indicated that the dynamic modulus of porous asphalt is generally 5,400 MN/m2, or about 70 to 80 percent of dense-graded mixes.
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