Page 50 - Unit 2: Pavement Material

Civil Engineering Department | DCC3113 : Highway & Traffic Engineering

AC Mix

i. For each laboratory design mix gradation, four specimens shall prepared for each
bitumen content with the range given in Table 3.1 at increments of 0.5 percent, in
accordance with ASTM D1159 using 75 blows/face compaction standard.

ii. All bitumen contents shall be in percentage by weight of the total mix

Table 3.1: Design Bitumen Contents
Source : Jabatan Kerja Raya, STANDARD SPECIFICATION FOR ROADWORKS, JKR/SPJ/2008-S4, 2008 (page 27)

AC 10 - Wearing Course 5.0 - 7.0%

AC 14 - Wearing Course 4.0 - 6.0 %

AC 28 - Binder Course 3.5 - 5.5%

Aggregate Mixing Specimen
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Prepared by : SITI ZURAIFA BINTI MD SAH, zuraifa@pmu.edu.my