Page 71 - Lecture Notes DCC3113
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The preparation and varieties of materials used in flexible pavement road surface
a. Premix
i. Asphaltic concrete
ii. Bituminous Macadam
b. Non premix
i. Cold mix asphalt
ii. Dry sand mix
iii. Wet sand mix
Figure 4-8: The preparation and varieties of materials used in flexible pavement road surface
Work
Cold mix asphalt
Cold mix asphalt is a mixture of emulsified asphalt and aggregate, produce, placed and compacted an
ambient air temperature. The use of cold mix asphalt is usually limited to relatively low-volume rural
roads. Cold mix asphalt pavement usually requires an overlay of hot mix asphalt or surface treatment to
resist traffic action. The components of cold mix asphalt can be mixed at a central plant or in-situ with a
traveling mixer
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