602 - HOT MIX ASPHALT (HMA) CONSTRUCTION (Quality Control/Quality Assurance (QC/QA))
600-7 Table 602-1: Combined Aggregate Requirements
Nom. Max. Size Mix Designation Percent Retained – Square Mesh Sieves Min. VMA (%) D/B Ratio 11/2" 1" 3/4" 1/2" 3/8" No. 4 No. 8 No. 16 No. 200 SM-4.75A SR-4.75A 0 0
0-2 0-5
0-5 0-10
0-10 40-70
40-7088.0-94.0 88.0-94.0 16.0 16.0 0.9 – 2.0 0.9 – 2.0 SM-9.5A SR-9.5A 0 0
0-2 0-10
0-10 10 min.
10 min.33-53
33-53 90.0-98.0
90.0-98.0 15.0 15.0 0.6 – 1.2 0.6 – 1.2 SM-9.5B SR-9.5B 0 0
0-2 0-10
0-10 10 min.
10 min.53-68
53-68 90.0-98.0
90.0-98.0 15.0 15.0 0.8 – 1.6 0.8 – 1.6 SM-9.5T SR-9.5T 0 0
0-2 0-10
0-10 10 min.
10 min.53-68
53-68 90.0-98.0
90.0-98.0 15.0 15.0 0.8 – 1.6 0.8 – 1.6 SM-12.5A SR-12.5A 0 0
0-2 0-10
0-10 10 min.
10 min. 42-61
42-61 90.0-98.0
90.0-98.0 14.0 14.0 0.6 – 1.2 0.6 – 1.2 SM-12.5B SR-12.5B 0 0
0-2 0-10
0-10 10 min.
10 min. 61-72
61-72 90.0-98.0
90.0-98.0 14.0 14.0 0.8 – 1.6 0.8 – 1.6 SM-19A SR-19A 0 0
0-2 0-10
0-10 10 min.
10 min. 51-65
51-65 92.0-98.0
92.0-98.0 13.0 13.0 0.6 – 1.2 0.6 – 1.2 SM-19B SR-19B 0 0
0-2 0-10
0-10 10 min.
10 min. 65-77
65-77 92.0-98.0
92.0-98.0 13.0 13.0 0.8 – 1.6 0.8 – 1.6
1.The requirements for Coarse Aggregate Angularity (CAA) ; Fine Aggregate Angularity (FAA); Sand Equivalent (SE); Gyratory compaction revolutions N ini, Ndes, Nmax, Nini level of compaction and VFA shall be as shown in the Contract Special Provisions for each mix designation.
2.The flat and elongated particles in the combined coar se aggregate shall not exceed 10% for the total sample.
3.The maximum percent moisture in the final mixt ure shall not exceed 0.5 for any mix designation.
4.The target air voids ( Va) for any mix designation shall be 4.0% at N des gyrations.
5.The minimum tensile strength ratio (%TSR ) shall be 80% for any mix designation.
6.The level of compaction of the mix when compacted to N ini gyrations shall be less than the percent of the G mm shown in the Contract Special Provision, and when compacted to N max gyrations shall be a maximum of 98.0% of the G mm. TABLE 602-2: MIX PROPERTIES Property AbbreviationTest Method Additional Information Air Voids V a KT-15 & KT-58 Calculated from G mm and G mb. Run at the P br. Recommended Percent Asphalt Pbr Produce a mix with a V a of 3.5% to 4.5%. Theoretical Maximum Specific Gravity G mm KT-39 Rice Test. Percent Tensile Strength Ratio %TSR KT-56 Run test at P br or at 0.3% to 0.5% less than P br Sand Equivalent SE KT-55 Bulk Specific Gravity of HMA Gmb KT-15 Compacted Mix Property. Percent G mm at N ini and N des and N max %G mm @ N ini %G mm @ N des %G mm @ N maxKT-15 Use G mm value from KT-39. Calculated from Gyratory Compaction height data, G mm, and G mb. Voids in Mineral Aggregate VMA KT-15 & KT-6 Calculated from G mb, G sb, Pb. Voids Filled with Asphalt VFA Calculated from VMA and V a @ N des. Coarse Aggregate Angularity CAA KT-31 Fine Aggregate Angularity FAA KT-50 Formulas for calculations are in the Superpave Volumetric Mixture Design and Analysis Handbook.
Source: Kansas Standard Specifications for State Road and Bridge Construction, 2015 Edition. Pages 244–244 of 978.