2018, Alaska, Arizona, Asphalt Pavements, California, Emulsions, Hawaii, Nevada, Oregon, Washington

Tack Coat Specifications, Materials, and Construction Practices

Click here to view the PDF of this report. TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 516: Tack Coat Specifications, Materials, and Construction Practices provides state agencies across the United States with guidance as they reevaluate their tack coat specifications, the materials they use, and the practices by which the tack coats are placed.… Continue reading Tack Coat Specifications, Materials, and Construction Practices

2018, Asphalt Pavements, Porous Asphalt, Sustainability

Structural Design Guidelines for Porous Asphalt Pavements (July 2018)

Often the design of porous asphalt pavements is focused on how well the pavement will handle water, not traffic. For most parking lots and light-duty surfaces this may be a reasonable approach, but as public agencies look to use full-depth porous asphalt pavements on roadways a traditional structural design methodology is needed. Written by Charles… Continue reading Structural Design Guidelines for Porous Asphalt Pavements (July 2018)

2018, Asphalt Pavements, Hawaii, Pavement Treatments

2018 NCAT Test Track Conference

The 2018 NCAT (National Center for Asphalt Technology) Test Track Conference was held Auburn, Alabama on March 27 to 29. The conference was attended by over 250 people including staff from sponsoring Departments of Transportation, other test track sponsors, vendors, and several State Asphalt Pavement Associations. Accelerated pavement testing (APT) is conducted at the test… Continue reading 2018 NCAT Test Track Conference

2018, Asphalt Pavements, Oregon, Pavement Treatments

Murray Boulevard Case Study

Murray Boulevard is a major arterial best known for being the access to Bowerman Drive, the main entrance to Nike World Headquarters where thousands of employees work on a sprawling campus that would make many prestigious colleges jealous. To asphalt pavement engineers Murray Boulevard is important not because of its famous tenant, but because of… Continue reading Murray Boulevard Case Study

2018, Asphalt Pavements, Oregon, Sustainability

Resiliency and Sustainability

Resiliency and sustainability—some of asphalt’s greatest (but lesser-known) benefits There are plenty of reasons agencies and contractors choose to pave with asphalt—from lower lifecycle costs, to greater opportunity for minimally-invasive rehabilitation, to faster opening to the driving public. Resiliency and sustainability are two more reasons asphalt should be your pavement of choice. Resiliency When we… Continue reading Resiliency and Sustainability

2018, Asphalt Pavements, Pavement Preservation, Sustainability, Washington

The right CSOL-ution

Washington State DOT’s last-ditch play against aging pavements is a unique success Asphalt Article By David Gent, P.E. February 09, 2017   State DOTs have a primary responsibility to maximize the return on investment from the considerable public funds spent to build and maintain their highways and interstates. To manage the long-term costs of its… Continue reading The right CSOL-ution

2018, Asphalt Pavements, Hawaii

Saddle Road – Bringing an Island Together

The following article is from the Asphalt Today, a supplement to Road & Bridges magazine Crews had to construct a new road through native, undeveloped ground. The Daniel K. Inouye Highway (DKI), also known as Saddle Road, is the most direct cross-island route between east and west Hawaii Island.People use the road for business travel,… Continue reading Saddle Road – Bringing an Island Together