Tag: asphalt binder

Roadbuilding
Future roads may contain 100% more pig poop
A team of researchers at North Carolina Agricultural & Technical State University is testing a substance made from pig manure to use as an asphalt binder to replace petroleum-based products, according to a report by the National Science Foundation (NSF). Civil Engineer Ellie Fini and partners, with support from the NSF, has created a product that […]
July 5, 2016
Screen Shot 2016-07-01 at 10.48.26 AM
Roadbuilding
Rubber Expands
Asphalt containing rubber continues to stretch its way into more state Department of Transportation.
September 5, 2014
Thin overlay of warm-mix asphalt containing terminal blend asphalt rubber and Evotherm warm mix additive is placed on Calif. 1, the Pacific Coast Highway, near Fort Bragg two hours after loadout.
Roadbuilding
New NYC law permits 100 percent RAP on streets
Effective January 1, 2015, the New York City Department of Transportation will allow asphalt mixes containing 100 percent reclaimed asphalt pavement (RAP) to be used on city streets.
September 5, 2014
The 100 percent RAP plant is owned by Green Asphalt and is located in Long Island City, New York.
Roadbuilding
The Magic of Rubberized Asphalt
Agencies and contractors are looking for ways to hold the line on the costs of asphalt pavements.
March 7, 2014
This rubber blending equipment is set up on an asphalt plant owned by Diamond B in Louisiana. The blending equipment was built by D&H Equipment Ltd.
Roadbuilding
Long Live Asphalt Pavements
The perpetual pavement project on California’s I-5 has sparked a trend in the state for asphalt pavements designed to last 40 years with minimal maintenance.
October 2, 2013
PMA was used in the top 3 inches of this project, and AR-8000 was used in the other layers, including the 3-inch-thick, “rich bottom” layer. The variability in structural pavement thickness is concentrated in the varying thickness of the middle layer(s).
Roadbuilding
Loss of Cover
Decoding the secrets of asphalt stripping and raveling.
July 5, 2013
Raveling describes the loss of aggregate from the driving surface of a bituminous concrete pavement.
Roadbuilding
Road Science
Forensic studies give clue to pavement failure.
October 9, 2012
Forensic evaluation of pavement failure begins with simple field observations.
Roadbuilding
Road Science
Modifiers Control Mix Performance.
April 6, 2012
In central California, terminal blend of rubberized asphalt liquid is injected into production of warm mix asphalt
Roadbuilding
Cracking Cold
Solving the Riddle of RAP and Thermal Cracking
February 17, 2012
Crow Wing County, Minn., is fighting low-temperature cracking of virgin and RAP mixes by using a warm-mix asphalt additive.
Roadbuilding
Road Science
Now, more than ever, thin open-graded friction courses (OGFCs) are driving the market for drainable, high-friction, noise-attenuating asphalt mixes.
September 7, 2011
A thin crumb, rubber-modified, open-graded wearing course is placed on California Highway 1 near Fort Bragg; the mix incorporated a warm-mix additive to ensure workability, following the two-hour drive to the Pacific Coast from the plant.
Roadbuilding
Road Science Tutorial
Regional Partnerships Link State, Local Agencies with State-of-the-Art Pavement Preservation Practice.
March 1, 2011
Paths to Pavement Preservation --- Preservation Begins with Pavement Inventory, Management
Roadbuilding
Highway Contractor: RAP — Making new fans across the country
With workability,environmental benefits and solid performance reports, Reclaimed Asphalt Pavement — RAP — is becoming a bigger part of the mix.
February 1, 2010
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