by QES | Sep 21, 2019 | Research, Sustainability and Environmental Impacts
An investigation into the viability of using recycled asphalt pavement (RAP) as a more sustainable option for road maintenance treatments. This research paved the way for the development of new standards to allow RAP to be used for road maintenance in Pennsylvania....
by QES | Sep 21, 2018 | Research
This article, written by Doug Frith, Vice President of QES, outlines our recommended approach to dealing with variations in data when designing a pavement management plan. Author(s): Doug Frith, PEDate: 2018Published in: ASHE Scanner Abstract: Performance measures on...
by QES | Mar 21, 2017 | Pavement Distress and Life-Cycle, Research
This study examines tens of thousands of bridge decks in order to identify their standard deterioration rate. This in turn helps create standardized bridge lifetime expectations and allows researchers to identify more effective maintenance treatments for bridge decks....
by QES | Jan 12, 2016 | Research, Sustainability and Environmental Impacts
Author(s): Dennis Morian, P.E. Luis Ramirez, M.Sc. Venue: Transportation Research Board 95th Annual Meeting Date: 2016 Keywords: Recycling, RAP, Pavement Rehabilitation, Asphalt Client: Transportation Research Board Abstract: While it is desirable for a transportation...
by QES | Sep 25, 2014 | Pavement Distress and Life-Cycle, Research
Slippage is a common pavement distress resulting from pavement layers separating due to the pressures vehicles put on pavement. No national standard addresses this issue, so this study examines its causes and effects more closely and presents solutions for it....
by nacb-adm | Sep 21, 2014 | Pavement Distress and Life-Cycle, Research
Load Transfer Efficiency (LTE), or how effectively concrete pavement performs near the edges of each slab, is one of the most important factors in how long that pavement will last. This study presents an empirical model to explain how to optimize the concrete mixture...
