Concrete Maintenance

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Case Studies September 15, 2017
More than 100 years after initial construction, a textile plant in the Southeast serving the booming automotive industry discovered it needed to rehabilitate portions of the structure supporting the main manufacturing floor. Years of exposure to the hot, humid manufacturing environment and...
Colorado DOT

Photo source: Flickr/Phillip Capper

News December 02, 2016
The Colorado Department of Transportation (CDOT) has identified $9 billion worth of unfunded priority project, including the widening of I-25 between Monument and Castle Rock, but is faced with a $1.41 billion budget for 2017, a budget which is at present over-burdened with maintenance requests.  ...
Article January 26, 2010
It’s no secret that the world economy has descended into what some say is the worst recessionary cycle since the Great Depression some eight decades ago. There have been few safe harbors from the downturn, which has had a significant effect on the road-building community. All of this has required...
Article January 26, 2010
A new, patented technology promises to introduce significant cost, labor and time savings—as well as quality and safety enhancements—into the process of retrofitting the nation’s concrete highways with load-transferring dowel bars. Using an array of precision-controlled water-blast nozzles, a...
Article January 26, 2010
There is a graveyard strategically tucked into the campus of the University of Texas. Those who walk the site want to see the decay unfold right before their eyes. It is not as gruesome as one might imagine, but it is all in the name of science—concrete science. Prof. Kevin Folliard, known all over...
Article January 26, 2010
The old handheld dowel drill: For years this was a necessary evil on any concrete patching job. “Evil” because its use consisted of slow, back-breaking work, bending or kneeling down, struggling to hold the drill in place while boring out multiple holes for concrete dowels—a chiropractor’s dream,...
Article May 11, 2009
Following a devastating nor’easter in April 2007, residents and business owners in the townships of Pittsgrove and Salem County, N.J., found their community lake reduced to a vast muddy field. The Rainbow Lake dam, which carries Rte. 56 over the dam spillway and is vital to the local economy, had...
Article January 08, 2009
Imagine “recycling” an 8,076-ft-long bridge that carries 50,000 cars and two dozen trains a day over the Mississippi River. That’s essentially what is happening in New Orleans with the retrofitting of the Huey P. Long Bridge. Louisianians have been making do with two 9-ft lanes in each direction on...
Article December 02, 2008
There’s a popular saying in the Midwest about the seemingly small number of seasonal changes in this part of the country: “We have only two seasons: winter and road construction.” While this old joke still holds more than enough truth to remain funny, it is no laughing matter for drivers when it...
Article November 13, 2008
More than ever before, stretching transportation-construction dollars is the order of the day as agencies contend with limited resources and rising construction costs. The solution for many facilities is pavement overlays, and increasingly agencies are turning to concrete overlays because of their...
Article November 13, 2008
In the past few years, the Arizona Department of Transportation (AzDOT) together with Arizona State University (ASU) and the local concrete industry constructed and tested several thin whitetopping (TWT) pavement sections to evaluate their laboratory and field performance. Earlier projects included...
Article November 16, 2007
Without fanfare or ceremony, there is a great and profound change beginning to take form in the concrete pavement industry. It is not by accident or coincidence that these things are occurring, but instead, the result of great foresight, planning and execution. What is this profound change? It is...
Article November 16, 2007
When a business traveler has to fly to a meeting, arriving safely and on time are certainly higher priorities than the structural integrity of the airport pavement. However, to the individuals running the airports and the airlines using the airports, pavement integrity is critically important. In...
Article October 12, 2007
Transportation practitioners seeking to learn more about using hydraulic cement concrete (HCC) petrography now have access to an updated resource recently released by the Federal Highway Administration (FHWA). Petrographic Methods of Examining Hardened Concrete: A Petrographic Manual (Pub. No. FHWA...
Article April 12, 2004
The concrete pavement industry is setting the record straight on the misconception that concrete is too difficult to rehabilitate. Outreach and educational information from the American Concrete Pavement Association (ACPA) is going a long way in educating agencies and consultants about the best...
Article January 16, 2004
Technical experts at the American Concrete Pavement Association (ACPA) and its chapter and state affiliates address thousands of technical issues every year. In response to the many technical questions, we often hear misperceptions about concrete pavements. Some common misperceptions are that...
Article October 23, 2003
Recycling: it's an integral part of our world, at home, at work, at school--and on the road. Thousands of miles of streets and roads in the U.S. are deteriorating, and pavement engineers and contractors are taking up the mantle to repair them, many in the form of full-depth reclamation (FDR) with...
Article May 16, 2003
Producing rapid-setting cement for use in cold regions is a challenge in the cement industry. Conventional portland cement, an invention of the 19th century, has limitations in its use on roads and bridges in cold climates. For example, road repairs are often done by first filling the potholes...
Article February 21, 2003
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...
Article October 18, 2002
Created in 1980 as an offshoot of Independence Excavating, whose resume includes demolition, sewer services and major earthwork--including site work at Jacobs Field, thehome of the Cleveland Indians--Independence Recycling has grown into a major-league success story of its own. From humble...
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