More Articles for polymer

A road without fibers is a road soon to be in need of repair

Tom Kuennen - Aug 29, 2014

A road without fibers is a road soon to be in need of repair

New research is reaffirming the benefits of steel or synthetic engineered fibers in asphalt pavements and concrete, where they enhance performance, replace fine matter, and in the case of concrete, control shrinkage cracking and keep deicing salts away from reinforcing ...

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Size Matters in Mix Grades and Aggregate Shapes

Contributed - May 06, 2014

Size Matters in Mix Grades and Aggregate Shapes

Whether it’s dense-graded, open-graded or gap-graded mix or stone-matrix asphalt, don’t forget their impact on compaction. Many contractors look to temperature when contemplating compaction needs. Yet, some off-site specifications also have a significant impact on the jobsite. These include mix design ...

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The Magic of Rubberized Asphalt

Better Roads Staff - Mar 07, 2014

The Magic of Rubberized Asphalt

As prices for asphalt cement (AC) and polymer have shot up dramatically, agencies and contractors are looking for ways to hold the line on the cost of asphalt pavements.   By Daniel C. Brown   The number of transportation agencies that use recycled tire ...

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Mix Optimization

Tina Grady Barbaccia - May 06, 2013

Mix Optimization

A formula for greenbacks and green roads When it comes to mix-design optimization, two goals stand out: dollars to be saved and how sustainable a road you can build. This means doing your homework and understanding calculations in mix design, explains ...

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Applications & Innovations

Better Roads Staff - Sep 06, 2012

Applications & Innovations

Whispering Asphalt   OGFCs cut spray and can be very, very quiet.   For several years, a number of states have placed open-graded friction courses (OGFCs) as a wearing course on their high-volume, high-speed roadways. An OGFC is a thin, permeable mix with high air ...

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Road Science

Better Roads Staff - Jun 09, 2012

Road Science

Spreading the Wealth Asphalt emulsions mix oil with water As pavement preservation techniques tighten their beachheads in state, county and municipal road agencies, new attention is focused on surface treatments, thin asphalt surfacings and the asphalt emulsions that make them possible. Asphalt emulsions ...

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Glass is the new pavement

Tina Grady Barbaccia - Nov 02, 2009

Those empty glass jars spaghetti sauce and bottles wine typically put in our recycle bins are getting a second life as a porous pavement system.   Although it hasn't yet been indicated for highways, the porous pavement system--sold under the name FilterPave--used 100-percent post-consumer ...

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