HOT- MIX ASPHALT (HMA) BINDER AND SURFACE COURSE . While its use is not required, his checklist has been prepared to provide the field inspector a t summary of easy-to-read step-by-step requirements relative to the proper construction of HMA Binder and Surface Courses (Section 406 of the Standard Specifications). The following
HMA 19M64 Base Course 3) Binder Grade 4) Location within the payment 1) Nominal Maximum Aggregate Size (mm) Superpave Mix Selection 4.75 9.5 12.5 19.0 25.0 37.5. High Stress Hot Mix Asphalt Mixture. The difference between the High Stress HMA Mixture and the typical HMA pay item is the Performance Graded binder. For High Stress Mixtures, increase the high temperature binder by one grade and add the polymer. The increase in the high temperature number results in an asphalt binder with Jul 01, 2005 · HOT-MIX ASPHALT MIXTURE IL-9.5FG (CBM) Effective: July 1, 2005. Revised: May 10, 2019. Description. This work shall consist of constructing fine graded hot-mix asphalt (HMA) surface course or leveling binder with an IL-9.5FG mixture. Work shall be according to Sections 406, 407 and 1030 of the Standard Specifications, except as modified herein. Hot-Mix Asphalt Material Properties . SCDOT Designation: SC-M-402 (03/11) 1. SCOPE. 1.1 Use the following specifications for preparing, constructing, and accepting Hot-Mix Asphalt (HMA) material properties. NOTE: Refer to the Standard Specifications, Division 300 for HMA Base Courses and on 400 for HMA Surface and Divisi Binder Course means a hot mix asphalt (HMA) course between a surface course and either a base course or stabilized base course, an existing pavement, or another HMA binder course. CCIL means the Canadian Council of Independent Laboratories. Designated Large Sieve (DLS) means the sieve size specifically designated for each mix type for
The full Superpave QC/QA (new certification) course lasts five days, the Superpave QC/QA re-certification course runs for two days, and the HMA Aggregate Consensus Tests, TSR, and Binder Ignition Oven courses are one day long. The Superpave QC/QA courses are divided into modules as shown below.
Apr 16, 2014 · The grade of asphalt binder selected typically is the same as incorporated into the HMA mix. For most areas, the asphalt binder tack coat material would meet the requirements of a performance
4 Chart 1: Recommended Mixes for Normal HMA Applications (Proposed compaction levels based on NCHRP 9-9 levels @ 4% Per Voids) Low Volume Design Level Recommended Aggregate Size Binder Type Compaction Level Compacted Thickness
of hot mix asphalt (HMA) or warm mix asphalt (WMA) Top Course, Binder Course, and Base Course for this contract, the following minimum asphalt content will be utilized in the final mixture design calculation for the optimum asphalt content: HMA/WMA Mixture Minimum Asphalt Content 9.5 HMA/WMA 6.0 12.5 HMA/WMA 5.4 19.0 HMA/WMA 4.7 A turnaround is an area designed for extra parking or for backing up before driving forward out of a driveway. It’s a useful feature if you want to avoid backing down the driveway or onto a busy street. This top structural layer of material is sometimes subdivided into two layers: the wearing course (top) and binder course (bottom). Surface courses are most often constructed out of HMA. Base Course. The layer immediately beneath the surface course. It provides additional load distribution and contributes to drainage.