1 / 7

HMA Mix Design Process

HMA Mix Design Process. Progress Report. Activities. HMA User Guide Available at month end Need to consider roll-out Mix Design Activities Forensic Studies contemplated APT – considering some testing HVS MMLS Sabita – Research Needs. HMA Users Guide.

veda-miles
Download Presentation

HMA Mix Design Process

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. HMA Mix Design Process Progress Report

  2. Activities • HMA User Guide Available at month end • Need to consider roll-out • Mix Design Activities • Forensic Studies contemplated • APT – considering some testing • HVS • MMLS • Sabita – Research Needs

  3. HMA Users Guide • Highlight important issues and content given in the IGHMA; • Caution the reader against certain pitfalls or gaps in the IGHMA; • Provide some guidance on supplementary procedures to achieve a sound and workable mix design; and • Provide comment and guidance on issues that have arisen since the IGHMA was launched in 2001.

  4. Chapters (1) • Chapter 1 - Introduction • 1.1 General issues related HMA design • Chapter 2 – Mix Design Procedures • Phase 1: Evaluate Design Situation and Identify Objectives • Phase 2: Mix Type Selection • Phase 3: Component Selection • Phase 4: Volumetric Mix Design • Phase 5: Performance testing

  5. Chapters (2) • Chapter 3 - Discussions on different mix types and specific design considerations • Sand-Skeleton mixes • Stone mastic asphalt • Open-graded mixes • Large aggregate mixes for bases (LAMBS) • Semi open-graded mixes

  6. Chapters (3) • Chapter 4 – Design Implementation: Construction and Quality Assurance aspects • Segregation • Compaction and layer thickness • Temperature control • Binder variation • Joints • Trial sections • Sampling and testing • Statistical judgement plans

  7. Conclusions • User Guide Available Soon • Highlights problems and identifies areas for research and investigations • Will need supplementary work to actually improve criteria and procedures

More Related