Long-Term Aging of Asphalt Mixtures for Performance Testing and Prediction: Phase III Results (2021) / Chapter Skim
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Pages 127-133
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From page 127... ...
127 The log |G* | values of the field cores obtained from the WesTrack and Brazil projects as a function of depth were used to evaluate the effects of asphalt mixture morphology on field aging.
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128 Long-Term Aging of Asphalt Mixtures for Performance Testing and Prediction: Phase III Results 0 1 2 3 4 5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 D ep th (c m )
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Investigation into the Effects of Asphalt Mixture Morphology on Pavement Aging 129 Brazil e Brazil eld cores o ered systematic changes in asphalt content and air void content for mixtures prepared with four di erent binders. e four binder sources were Galp (PG 64-16)
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130 Long-Term Aging of Asphalt Mixtures for Performance Testing and Prediction: Phase III Results contents have the lowest log |G* | values.
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From page 131... ...
Investigation into the Effects of Asphalt Mixture Morphology on Pavement Aging 131 increasing the air void content leads to increased aging for 5.1% asphalt content. is trend is not evident at 4.6% asphalt content, as shown in Figure 4 (c)
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From page 132... ...
132 Long-Term Aging of Asphalt Mixtures for Performance Testing and Prediction: Phase III Results 0 1 2 3 4 5 -0.1 0.4 0.9 1.4 1.9 2.4 2.9 D ep th (c m )
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From page 133... ...
Investigation into the Effects of Asphalt Mixture Morphology on Pavement Aging 133 holds when the air void content is 4%. At other air void contents, however, trends vary among the different binders evaluated and often do not match intuition.
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