Thin Asphalt Overlay
Effectiveness of Thin Hot Mix Asphalt Overlay on Pavement Ride and Condition Performance. Report No. FHWA/OH-2008/4. Ohio Department of Transportation.
Thin Hot-Mix Asphalt Overlay Checklist This checklist is one of a series created to guide State and local highway maintenance and inspection staff in the use of innovative pavement preventive maintenance processes.
Michigan Michigan Ultra-Thin Overlay Ultra-Thin Overlay Asphalt Binder Selection Low Volume Comm. ADT <380 Medium Volume Comm. ADT 380 - 3400 High Volume Comm. ADT >3400 PG 64-22 PG 64-28P PG 70-22 P
A tack coat should be applied to assure bonding of the thin overlay to the existing pavement. The hot mix asphalt materials are mixed at a hot mix plant, transported to the job site, placed using a paver and compacted with rollers.
For the UTW overlay, 2"- 4" of the existing asphalt pavement was cold-milled and then 4" of concrete pavement was placed. An UTW overlay is known as a thin (2"-4") concrete overlay bonded to a milled, existing AC surface.
For an unbonded concrete overlay on concrete, engineers usually design a thin separation layer of debonding material —typically a 1-inch layer of asphalt —to be placed over the existing concrete.
... THE UNIVERSITY OF TEXAS AT AUSTIN Project Summary Report 0-4398-S Project 0-4398: Develop Guidelines for Designing and Constructing Thin Asphalt ... expected that the implementation of the criteria as the steps in the decision tree will ease the process of determining the adequacy of a thin AC overlay ...
"Check the density of the underlying mat, which will influence nuclear gauge readings on thin overlays," FHWA says in its Pavement Preservation Checklist: Thin Hot-Mix Asphalt Overlay.
Design of the Times: Thin Concrete Overlays "PCC Overlays are increasingly being used as a rehabilitation technique for … hot mix asphalt pavements.
This project evaluates many independent design variables to gain information regarding the most cost-effective thin overlay designs for composite pavement. Problem Statement Previous asphalt concrete cement (ACC) resurfacing efforts have extended the design lives of many aging PCC pavements in Iowa and ...
Other sites you could try:
Find videos related to Thin Asphalt Overlay