Dense-graded 1-1/4 inch HMA primarily intended for use as a base course. This was WSDOT’s “standard” base course paving mix that could also be used as a heavy duty surface mix. Class E was supplanted by the current Class 1 inch HMA Superpave mix design. Class G. Dense-graded HMA for thin lifts (usually 1 inch thickness or less).
Mix Designs - Federal Aviation Administration P-401 HMA Surface Course. Airport pavement design of HMA surface courses is outlined within the Advisory Circular AC 150/5370-10E Part V. The mix consisted of a #7 stone, #8 stone, #9 stone, #10 screenings, and bag house dust. Also, the asphalt binder was a PG 64-22. 5 Preparation of Surface - IN.gov 2) On newly constructed aggregate or HMA base courses 3) For widening contracts, on a combination of existing pavement and a base course The existing surface is required to be compacted, stable, and free from mud or other foreign matter before placing the new HMA pavement. This may include patching, leveling, wedging, and cleaning. The surface is Section 450 - HMA QA Spec No Pay Adjustment - 03-10-05 Final on the plans. Unless specified otherwise, each HMA pavement course placed shall be comprised of one of the mixture types listed in Table 450.1. Table 450.1 - HMA Pavement Courses & Mixture Types Pavement Course Mixture Type Mix Designation Friction Course • Open-Graded Friction Course OGFC Surface Course • Dense Binder • Modified Top
Jan 20, 2016
Solved: Part You Have Been Tasked To Design An Interstate Part You have been tasked to design an interstate highway pavement comprised of hot-mix asphalt (HMA) surface course, a cement treated base course, and a sand-gravel subbase with a predicted design ESAL of 1.2 x 106.The quality of drainage is considered fair because water can be removed from the subbase within a week. Advisory U.S. Department of Transportation Circular
conditions to obtain high-friction, skid-resistant HMA surface courses. ITM 205 is used to veify that the aggregate is carbonate rock containing at least 10.3 percent elemental magnesium. Polish Resistant Aggregates Aggregates that meet the requirements of ITM 214 may be used in place of dolomitic aggregates in HMA surface mixtures.
Jan 20, 2016 Recycled HMA - Pavement Interactive This base course is then paved over with an HMA surface course. Full depth reclamation (FDR). FDR is a form of CIPR in which the entire pavement structure is pulverized and recycled. Typically some form of BST or HMA overlay is placed on top of the recycled material.