More Articles for National Center for Asphalt Technology

Loss of Cover

Better Roads Staff - Jul 05, 2013

Loss of Cover

Decoding the secrets of asphalt stripping and raveling   By Tom Kuennen, Contributing Editor     Raveling describes the loss of aggregate from the driving surface of a bituminous concrete pavement. Loss of aggregate through raveling encourages pothole formation and cracking, which can introduce water ...

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‘If you look after the pennies, the dollars will look after themselves’

Tina Grady Barbaccia - Feb 22, 2013

‘If you look after the pennies, the dollars will look after themselves’

Pennies DO matter! In a recent conversation with Shane Buchanan, asphalt performance manager with Oldcastle Materials Group’s Asphalt Performance Team, about mix-design optimization, he told me how watching your pennies can save your operation millions. But it’s not about cutting corners to ...

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Road Science

Better Roads Staff - Oct 09, 2012

Road Science

What Went Wrong, and Why   Forensic Studies Give Clues to Pavement Failure By Tom Kuennen, Contributing Editor   Whether the pavement is black or white, flexible or rigid, asphalt or concrete, pavement forensic testing is the key to preventing future pavement failures in either ...

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Stretching a road maintenance budget with fine milling

Tina Grady Barbaccia - Aug 23, 2011

Stretching a road maintenance budget with fine milling

Doing more with less and aggressively seeking new ways to stretch budget dollars are how many businesses respond to a tough economic climate. Federal and state highway and transportation departments are no exceptions. Fortunately, academic research and equipment technology communities ...

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Asphalt Today

Brooke Wisdom - Oct 01, 2010

Asphalt Today

Thin Asphalt Overlays Answer the Call New research, as well as past performance, proves their value Research from two separate field sites is proving the effectiveness of thin asphalt overlays under heavy traffic loadings. Meanwhile, thin asphalt overlays continue to succeed as a ...

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Road Science

Better Roads Staff - Aug 01, 2010

Road Science

Concrete ‘Road Map’ Not Set in Stone Stakeholder Needs Take Concrete ‘Road Map’ in New Directions By Tom Kuennen, Contributing Editor The CP Road Map, formally the Long-Term Plan for Concrete Pavement Research and Technology – first articulated to the industry at the ...

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Road Science Tutorial: Many paths to low-energy asphalt mixes

Better Roads Staff - Jun 01, 2010

Road Science Tutorial:  Many paths to low-energy asphalt mixes

In-plant foamed asphalt processes grow in popularity as producers, contractors and agencies embrace warm mix asphalt By Tom Kuennen, Contributing Editor Warm mix asphalt (WMA) is created by mixing a solid chemical compound additive with hot mix asphalt in the plant. Except ...

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Road Science: Thin is In

Brooke Wisdom - Jan 01, 2010

Road Science:  Thin is In

Thin lift hot-mix asphalt overlays are securing their place in the ‘pavement preservation toolbox’ touted by the Federal Highway Administration, the Foundation for Pavement Preservation, and other groups. And while they are more expensive in initial costs than other proven pavement ...

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