Concrete Technology

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    BIM Makes Leap Forward

    Building Information Modeling will make precast producers more efficient.

     
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    Making a Quality Hire

    Q: We are a small but growing ready-mix producer. We have just decided to open a portable plant to service a multiyear project. We are considering hiring a full-time quality control manager. At what annual production volume does it make sense to make this hire?

     
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    Data Capture

    Producers strive to collect standard data from different batching systems.

     
  • CIM at Texas State University

    Members of the Concrete Industry Management program's National Steering Committee visited the newest CIM location, Texas State University. The group toured concrete lab facilities at the Ingram School of Engineering, which include state-of-the-art testing equipment and a large moist curing room.

     
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    Doing Something About the Weather

    Using real numbers to solve real problems.

     
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    Calming Fears About SCC

     
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    Minimizing Gradation Testing Variability

    It seems that many of the field labs had performed gradation tests with worn sieves. While most differences were minor, they introduced a degree of unnecessary variability when combined. How can we can minimize our testing variables on these large projects?

     
  • Quality Control for Pervious Concrete

     
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    Proving Pervious Concrete's Durability

     
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    Faster Testing for Fine Aggregrate Quality

    Q. The last few seasons we've had difficulty controlling our water demand and our yields due to the sand's variability in absorption and specific gravity. Our quality control problem is compounded because our stockpile area is rather small. So by the time the lab sends us the sample results, the...

     
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    Proper Coring Techniques

    Q. We are involved in a quality claim in which the testing lab reports the hardened concrete did not achieve the specified design strength. Our testing lab broke cylinders from that same job and all achieved proper strength. We are confident that we will achieve proper strength if the coring is...

     
  • Updated Pervious Concrete Research

    The RMC Research & Education Foundation has released the revised version of its “Pervious Concrete Research Compilation.”

     
  • More Control for the Big Testing Labs?

     
  • Foundation Releases Updated Pervious Concrete Research Compilation

    Silver Spring, MD -June 26, 2008: The RMC Research and Education Foundation is proud to announce the release of the revised version of its Pervious Concrete Research Compilation.

     
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    Modern Moisture Testing

    Changes have occurred in testing floor dryness.

     
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    Integrating Technology

    Concrete producers, who long have used some computer programs in their back office and batching areas, are seeing the benefits of adding new programs and integrating their systems. Computer companies, meanwhile, are taking advantage of high-efficiency chips, larger memory capabilities, and wireless...

     
  • Testing for Bridge Deck Shrinkage

    Q: We plan to bid on some state bridge deck work planned in our area. Our district engineer is open to allowing a high-performance mix that will help mitigate the possibility of undue cracking. Our lab is analyzing several mixes with standard features such as strength, set time, and chloride...

     
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    Towering Achievement

    The 52-story Wachovia Corporate Center is the focal point of the new mixed-use Wachovia Cultural Campus, which will include a 42-story condominium tower, art museums, and 1200-seat performing arts theater. The two towers, along with a nine-story building annex, sit atop an eight-story parking...

     
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    Decorative Slab Core Samples

    We are involved in a dispute on the quality of a decorative slab for which we supplied concrete last fall. The project appears to be fine, but one set of test cylinders failed to meet compressive strength requirements.

     
  • Testing for Quality Block

    We recently supplied several split-face blocks for a large commercial project. The work continued for several months, and with about two weeks left, we started receiving complaints about the quality of the units from the mason contractor.

     
 
 
 

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