Asphalt Pavement Magazine - July/August 2016 - (Page 13)

Industry News High Binder Replacement Synthesis Released The Pavement Economics Committee-funded report Use of RAP & RAS in High Binder Replacement Asphalt Mixtures: A Synthesis has been completed and published as NAPA Special Report 213. The research was conducted by Dave Newcomb, Jon Epps, and Fujie Zhou at the Texas A&M Transportation Institute and includes a historical overview of the use of RAP and RAS, environmental and economic benefits, design and production considerations, and field performance information. It is available for free for NAPA members, government employees, and academics at Louisiana Develops Performance-Based Specs for Asphalt Mixtures Through the Transportation Research Board, the Louisiana Department of Transportation and Development has released a report on performance-based specifications, based on nine paving projects in the state. Fourteen pavement sections and 21 asphalt mixtures were tested, using a variety of tests, including a Hamburg type loaded-wheel tester, a semi-circular bend test, and an indirect tensile dynamic modulus test. The report includes a draft sampling and testing plan for performancebased specifications, and can be found here: FHWA Releases New GHG Performance Metrics Proposal FHWA has released the last of three rulemakings to implement national highway performance measures as required under MAP21. The safety-related performance measures became final on April 14. A proposed rule on measuring pavement and bridge conditions was issued on Jan. 5, 2015, and a final rule is expected shortly. A proposed rule for the third, and most difficult, standard was issued on April 22 to address highway performance, freight movement, traffic congestion, and on-road mobile sources of greenhouse gas (GHG) emissions. As part of the rulemaking, FHWA is seeking comments on whether and how to include measurement of mobile CO2 emissions in the final rule. The United States recently joined the Paris Accord, part of the U.N. Framework Convention on Climate Change, which aims to reduce GHG emissions by 80 percent of 2005 levels by 2050. As reducing on-road transportation sources of GHG emissions will be required to meet this goal, FHWA is considering how to estimate, track, and report CO2 emissions. Also under consideration is whether or not off-road emissions, such as those associated with road construction, should be included in the metric. NAPA is currently reviewing the proposed rule and weighing comments ahead of the Aug. 20 deadline. The proposed rule can be found at OSHA Issues Guidance to Protect Workers From Zika Exposure Last month, OSHA issued new guidelines to help protect workers from exposure to the mosquito-borne Zika virus. The interim guidance recommends employers inform outdoor workers about the risk of exposure to Zika from mosquito bites. OSHA recommends employers provide insect repellent to outdoor workers and encourage the use of clothing that can help reduce mosquito bites. The agency also encourages employers and workers to remove sources of standing water, which may be mosquito breeding grounds. The interim guidance can be found at Asphalt Pavement Magazine - July/August 2016 * 13

Table of Contents for the Digital Edition of Asphalt Pavement Magazine - July/August 2016

President’s Perspective Dedicated to Your Success
Industry News
Creating a Sustainability Program: Selecting Goals to Measure Deployment
The NAPA Operational Excellence Awards
Brochures Draw Big Picture
Web Designs Link to Success
Smart Ideas, Simple Solutions Enhance Safety
Fresh Ideas for Greener Plants
Building Community While Building Roads Local outreach efforts reap dividends
Calendar of Events
Index of Advertisers/

Asphalt Pavement Magazine - July/August 2016