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    What To Do With Test Results?

    In his third installment in this testing series, Hover discusses what to do with properly sampled concrete test results.

     
  • BubbleDeck precast panels are being lifted into position. Once in position, workers place shores under the panels and with little additional work, a deck is ready for concrete placement.

    On the Bubble

    Placing concrete around plastic voids increases efficiency and reduces costs.

     
  • Knowing both the total hole count and logistical factors of a job will help one decide if a larger, multigang slab-rider drill is the most efficient choice.

    Drill It Down

    Pneumatic dowel drills come in a variety of models to meet the challenges of any project. Find out what to consider when making your next purchase.

     

DECORATIVE CONCRETE PROJECT OF THE YEAR

Winners

SPECIAL SECTION

Tools for the Concrete Pro

  • Vibrating handheld screeds, the lightest and least expensive mechanized screeds, save effort and allow the finisher to work standing up.

    Screed Stars

    This indispensable equipment is a must-have for any flatwork contractor. Find out how to choose the best your operation.

     

SLABS ON GRADE

  • A new test method employs a traditional walking-type profiler, which has made it possible for any local lab to test F-min quickly and competently, and at a lower cost.

    F-min Numbers, Part 3

    In his final installment, Allen Face explains the origin of the term superflat in warehouse construction.

     

JOBSITE PRODUCTS

  • Pump Farther

    The 3-in. swing-tube pump on the X-10 refractory and shotcrete pump yields up to 12 cu. yds./hr.

     

  • Compact Size

    Redesigned for better maneuverability and towing, the SP 750-15 features a more compact package.

     

  • For Long-Distance Pumping

    Heavy-duty, high-pressure BSA 100-D and BSA 120-D trailer pump models are ideal for long-distance pumping.

     

  • Reduces Pressure Drop

    The 15 130 S-Tube pump features 7-in.-diameter cylinders and a 54-in. stroke that are designed to reduce pressure drop created by oversized pumps.

     

  • Small Frame, Big Power

    The C50SS Concrete Pump packs superior performance in a compact frame.

     

  • Simplified Pumping

    The GHP line of concrete pumps are designed to handle small jobs.

     

  • Chrome Exterior

    The multipurpose Pro-Cretor Shotcrete Pump and Mixer features a 10 cu. ft. materials mixer and high-pressure swing-tube pump.

     

PROBLEM CLINIC

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    Use Air-Entrained Concrete

    We placed, colored, and stamped the concrete in the photo two years ago. It looked great after the first winter, but then during the second winter, the surface started breaking down. We specified only 3% entrained air in the concrete because I was told not to use too much air or else the concrete...

     

Other Articles

  • From 1970 to 2004, U.S. scrap steel prices varied only by $100 per ton. In 2004, scrap prices rose to unprecedented levels and remain high compared to the historical average.

    The New Reality: Cost Volatility

    Currently the rebar industry is affected by worldwide demand for scrap steel; a phenomemon that will continue to impact concrete construction.

     
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    Smart Concrete, Safety Card, Sensing Skin

    Smart concrete combats urban heat island effect, safety card quiz reinforces safety program, and concrete patches monitor structures.

     
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    Smart Concrete, Safety Card, Sensing Skin

    The Hilti Anchor Selector app will help you choose the best anchor for the job.

     
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    Organizational Financing

    The balance sheet presents the financial position of an organization at the end of a specific date.

     
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    pH of Floors

    pH represents the acidity or alkalinity of a fluid—therefore there is no pH without water.

     
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    Performance Mixes

    Now more than ever, concrete contractors need to know about new technologies that can make them more competitive.

     

  • Working Together

    Learn about concrete floor and tile contractors, a new work zone safety resource, ACI certification programs, and Women in Concrete.