Solid oak
Concrete Progress
November 2008
By Roads & Bridges
Detroit suburb strengthens its streets with overlays
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Muscle fiber
Concrete Progress
November 2008
By Kamil E. Kaloush, Ph.D., P.E., and Maria Carolina Rodezno
Additives give concrete whitetopping strength
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Guess not
Concrete Progress
November 2007
By Gerald F. Voigt
New advancements eliminate guesswork, create standardization
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Growing wings
Concrete Progress
November 2007
By James Bruinsma, P.E., and David Peshkin, P.E.
Advancements in accelerated airfield concrete pavement rehab and reconstruction make it more appealing
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A petrographic approach
Roads & Bridges
October 2007
By Richard Meininger
Updated manual aids transportation practitioners
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A Mix Match
Roads & Bridges
April 2004
Gerald F. Voigt, P.E., Contributing Author
The concrete pavement industry supports a “mix of fixes,” a number of rehabilitation methods that address both short- and long-term requirements. The concept behind a mix of fixes is that sound planning and pavement assessment will not only help address pavement performance issues as early as possible, but also will help select the right corrective action.
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Have it repaired
Roads & Bridges
January 2004
Mike Ayers, Ph.D., Scott Haislip and Steve Waalkes, EIT
Concrete pavements are easy and inexpensive to repair and restore with proper equipment, materials and procedures. And, when concrete pavement restoration methods are no longer viable, there are concrete overlays, which are a cost-effective means of adding structural capacity and returning pavements to a smoother, safer condition. Concrete overlays include bonded, unbonded, whitetopping and ultra-thin whitetopping.
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Cement Cures
Roads & Bridges
October 2003
Jennifer G. Prokopy
Full-depth reclamation with cement is a cost-effective way to rehabilitate failed asphalt pavements. The process is ideally suited to roads that carry lighter loads, such as the Natchez Trace Parkway, a historic trail that winds through Mississippi, Tennessee and Alabama.
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A Patch for Jacket Weather
Roads & Bridges
May 2003
A novel cementing solution is needed to address the specific problems related to cold climate applications. During the last 10 years, Argonne National Laboratory, Argonne, Ill., has been developing Ceramicrete, a phosphate-based cement that may provide a solution to these cold climate problems. This cement was originally developed for encapsulating nuclear waste, and now is becoming a sensible option for DOTs across the midwest and northern U.S.
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Out in the Cold
Roads & Bridges
February 2003
Mike Ayers, Ph.D., and Steve Waalkes, Contributing Authors
The following are some of the top technical inquiries received by the American Concrete Pavement Association (ACPA). This article focuses on some of the challenges of paving and maintaining concrete pavements in winter months. Some of the following technical tips cover winter topics including frost heave, studded tires and insulation during cold weather paving.
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A Love For the Crush
Roads & Bridges
October 2002
Rick Zettler
Independence Recycling has grown into a major-league success story. From humble beginnings as a local recycle contractor with a single portable crushing and screening plant started primarily to handle demolition materials generated by its sister company, today the company employs 60, operates nine portable horizontal shaft impact crushing plants producing in excess of 3 million tons of spec product per year and services a broad customer base east of the Mississippi River.
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Tons Riding on It
Roads & Bridges
August 2002
Bill Wilson
A new, permanent, ultra-fast-setting concrete repair material now available in the U.S. helped a contractor speed through multiple concrete slab repairs at Colorado Springs Airport late in 2001.
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Cheer of the Unknown
Roads & Bridges
July 2002
For a relatively small town like Sheridan, Wyo., whitetopping an arterial street with over 17,000 sq yd of concrete during the height of the tourist season is no small undertaking. This seemingly small leap of faith ended up setting a great example for other communities in the state, proving that whitetopping is a very viable and cost-effective solution for long-term street maintenance.
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Answering No. 34
Roads & Bridges
March 2002
Lon Hawbaker, P.E.
Government Accounting Standards Board (GASB) Statement No. 34 encourages governmental agencies to promote responsible asset management policies and procedures. It requires a more complete reporting of finances by including capital assets, such as roadways, that have traditionally been omitted from financial statements. The consensus is that GASB 34 will have the greatest impact on transit and toll highway authorities, airport and port authorities, public water and sewer utilities, and local highway departments.
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