Lab Corner – Summer 2009 Got residue?

Since its publication as a standard in 1939, ASTM D244…

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PPA modification and performance testing

Polyphosphoric acid, otherwise known as PPA in our industry, is…

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Lead by your sample

Representative Sampling of Asphalt Binder, Aggregate and Plant Mix A…

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So much to do, so little time

So much to do, so little time… Remember that one?…

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FHWA works to support statistical quality assurance techniques

While the feds are not dictating “Percent Within Limits,” they…

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Vista Petroleum joins Asphalt Institute

Vista Petroleum Services, Inc. is the newest AI associate member.…

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APA announces winners of 2008 Perpetual Pavement Awards

The Asphalt Pavement Alliance (APA) has announced the winners of…

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Colorado study increases rehabilitated road life expectancy by 2 years

Asphalt rehabilitation projects using a 2-inch mill and overlay approach…

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Arizona State University releases pavement study

Researchers at Arizona State University (ASU) recently released modernized guidelines…

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