More Articles for Portland cement

Special Transportation Research Board 2013 Report

Better Roads Staff - Apr 03, 2013

Special Transportation Research Board 2013 Report

‘Bio-Binder’ Green Modifiers Star at TRB   By Tom Kuennen, Contributing Editor   The emerging universe of biologically based modified asphalts got significant exposure at the 92nd annual meeting of the Transportation Research Board (TRB) in Washington, D.C. Better Roads was there. More than 11,700 ...

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Superthin Concrete Overlays

Better Roads Staff - Oct 09, 2012

Superthin Concrete Overlays

Spurred forward by some brave new thinking, the concrete pavement industry is working toward thinner concrete overlays these days – down to 3 inches, even 2 inches. Some Iowa counties have paved a lot of miles of 4-inch overlays that have ...

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Road Science

Better Roads Staff - Jul 03, 2012

Road Science

On the Face of It   Aggregate performance depends on its surface     The higher-performing bituminous and portland cement concrete mixes of today are becoming more complex, and to ensure performance, more scrutiny is being given to the chemistry and composition of the aggregates ...

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Applications & Innovations

Tina Grady Barbaccia - May 04, 2012

Applications & Innovations

Heavy Road Work Full depth reclamation saves aging roads struggling under heavy fracking loads By Tina Grady Barbaccia When energy companies began driving heavy truck traffic over rural Pennsylvania roads not built to withstand the weight, the state’s DOT charged a local contractor ...

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Road Science

Better Roads Staff - Apr 06, 2012

Road Science

Asphalt a la Carte Modifiers Control Mix Performance Petroleum (literally, rock oil) is one of the most important gifts of the union of carbon and hydrogen. But instead of being a simple compound (like water), petroleum is a natural product, a complex ...

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Highway Contractor

Better Roads Staff - Dec 04, 2011

The Greening of America's Highways Words like sustainability, carbon footprint and environmental stewardship have dominated the construction industry for the past half-decade, driving some highway engineers to protest the buzz and beg their information sources to go back to covering advances ...

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Road Science

Better Roads Staff - Dec 02, 2011

Road Science

Speeding Up Time The multiple values of accelerated bridge replacement The cost of user delays in an era of unbridled traffic congestion is driving today’s fast-paced bridge erection technology, and it’s being encouraged by the Federal Highway Administration (FHWA) in partnership with ...

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Road Science

Better Roads Staff - Oct 04, 2011

Road Science

It's a Small, Smart World Nanotech era draws closer By Tom Kuennen, Contributing Editor Nanotechnology offers long-term promise to boost performance of our highway, road and bridge infrastructure. New research is expanding and new applications are materializing. More recently, the long-term environmental impacts ...

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RoadScience

Better Roads Staff - Jun 03, 2011

RoadScience

The Same ... But Different Diamond Grinding vs. Micromilling By Tom Kuennen, Contributing Editor Diamond grinding of Portland cement concrete pavements and micromilling of bituminous asphalt pavements are superficially similar in concept, but that’s just about the only thing they have in common. Diamond ...

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