EDITORIAL COMMENT

  • Let Your Opinion Be Heard

    As a means to profile some of the new products and equipment, our 2008 Most Innovative Products (MIP) contest collates these new, innovative products and equipment in manner that allows the industry to determine the products they feel are best.

     
  • Avoiding the Perfect Storm

    The next generation of workers should understand immediately that it is a smart decision to invest in a career in this industry.

     

FEATURES

Other Articles

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    Paving With Gusto!

    At the front end of the job, the widening and reconstruction of U.S. 377 in Keller, Texas, looked like a fairly straightforward project. But when unprecedented rain earlier this year washed out the schedule for the better part of two months, it began to look a bit more challenging.

     
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    Concrete Pavement Projects Go for the Gold

    In late November, the American Concrete Pavement Association (ACPA) named the winners of its 18th annual “Excellence in Concrete Pavement Awards” program.

     
  • Five More Influencers

    The editors of The Concrete Producer magazine join Concrete Construction in selecting their own influencers of 2007.

     
  • Edward J. Sullivan

    Guiding Our Industry

    They may come from different areas within the industry, but all of the choices for our list of people guiding the industry share one thing in common: they are driving the industry forward. Whether through economic analysis, scientific inquiry, or through simple dedication to promoting the industry...

     
  • The State of Our Country's Infrastructure

    The price tag to upgrade our infrastructure and make it safe is considerable—much more than the war in Iraq is costing. The only way to raise this kind of money is to increase taxes and politicians won't do that until after the next election. So what is likely to happen and what is the role that...

     
  • Secrets to Success

    This past September, prior to the American Society of Concrete Contractors' (ASCC) Annual Conference in Charlotte, N.C., a roomful of concrete construction professionals met with the editors of Concrete Construction for the Sixth Annual Roundtable Discussion.

     
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    The Industry Takes a Breather But Continues to Grow—and Change

    At first glance, the concrete industry appears simple and straightforward. Mix the right materials and put it where you want, let it sit awhile, and soon another reliable dam or highway or building or plant is built. Add up all the pieces and you have the infrastructure we've all grown to rely on...

     
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    Perfect Polishing

    In 2002, a few contractors aggressively marketed the concept of diamond polished floors, but after five years of growth, how has the industry changed in terms of tools, procedures and the market for polished concrete floors?

     
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    Considerations When Designing and Building a Tilt-up Project

    With a mindset that tilt-up is not an option but a standard, a design team must develop ways of thinking that include planning for this building method in the earliest stages of the design process.

     
  • Office Depot Global Headquarters

    The new office complex that will soon be the corporate home of Office Depot posed quite a few challenges as a tilt-up project for concrete contractor Woodland Construction Co., Jupiter, Fla. Not only were the three towers five stories tall, the architect

     
  • Wells Fargo Home Mortgage

    Engineers like to work from the top down, designing the roof, then the decks, the structural supports, and finally the foundations upon which the entire structure rests. Such was the case on a three-story structure now nearing completion in Frederick, Md.

     
  • Working Tilt-Up From Both Ends

    There's general acknowledgement on the benefits of using tilt-up construction.

     
  • Dubai

    Dubai City is considered to be the world's fastest-growing city with more than $90 billion in projects under construction at the moment.

     
  • The Burj Dubai

    In Arabic, the name “Burj Dubai” means “The Tower of Dubai.” Presently the building is over 1800 feet off the ground, making it officially the tallest building in the world, surpassing the Taipei 101 building in Taipei, Taiwan, at 1667 feet.

     
  • City Center

    With an estimated cost of $7.5 billion, City Center, owned by MGM Mirage, is the largest privately funded project in the country.

     
  • Dallas Cowboys Stadium

    Totaling nearly $650 million, the new Dallas Cowboys' Stadium in Arlington, Texas, is a 2.3 million-square-foot venue scheduled to open for kickoff of the 2009 NFL season.

     
  • Mon/Fayette Expressway & Southern Beltway Project

    Critical to the vitality and economic health of the greater Pittsburgh metropolitan area, the Pennsylvania Turnpike Commission's Mon/Fayette Expressway & Southern Beltway Projects include seven different concrete pavement construction jobs, each of which are in varying stages of completion.

     
  • Palmdale Regional Medical Center

    Palmdale, Calif., is situated in the northwest corner of Los Angeles County, and soon will be home to a more than 200-bed hospital.

     
  • The Bravern

    Being billed as “a dynamic high-rise community ... for those seeking the ultimate in refined luxury,” The Bravern mixed-use complex in downtown Bellevue, Wash., is slated to open in stages throughout 2008 and 2009.

     

DECORATIVE CONCRETE PROJECT OF THE YEAR

Winners

Nominees

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    The Best in Decorative Concrete

    This year several of the best decorative concrete projects had their beginnings by word of mouth, through a connection at the World of Concrete in Las Vegas, or from people searching online. The projects and the products in North America reach into China and Poland. New ideas, proven products, and...

     
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    Agora

    A permanent installation found in Chicago's Grant Park features Polish artist Magdalena Abakanowicz's 9-foot-tall iron cast sculptures of 106 walking torsos frozen in motion. The project's name Agora means a public marketplace or forum in Greek.

     
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    Bob's Produce Ranch

    Mike Schroer, an owner of Bob's Produce Ranch, wanted a minimum maintenance floor to enhance their fresh food-oriented neighborhood grocery. A grocery store design team representative suggested polished concrete. Schroer investigated, installed the floor, and now hopes to use polished concrete in...

     
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    The Residence

    Markus Sadowski, president, Admatek, Pszczyna, Poland, found Wayne Sellon at the World of Concrete 2007 where he demonstrated decorative vertical concrete work at the Artistry in Decorative Concrete demonstrations.

     
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    ASET (Automotive Spraying Equipment Technology)

    We know art because we work with the best airbrush painters in the country,” says Sherri Candland, CFO, ASET, Salt Lake City. “This floor is a work of art without question.” Neil Ohmie, co-owner with Erick Nay of Ky-Kan Coatings, Riverton, Utah, installed the floor that Candland describes as...

     
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    Wild Bull

    Ryan Reedy, president, Metro Properties Group, a developer in Kalamazoo, Mich., created an entertainment center from a half block of older downtown buildings.

     

SPECIAL SECTION

Tools for the Concrete Pro

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    Angle Grinders

    Although angle grinders were not initially designed with concrete in mind, concrete contractors have found plenty of use for them. In fact, angle grinders are one of the most versatile tools in the concrete contractor's arsenal.

     
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    Getting in on the Ground Floor

    A new certification program from the American Concrete Institute (ACI), called the"ACI Specialty Commercial/Industrial Concrete Flatwork Finisher/Technician," will take place at the World of Concrete 2008, Jan. 21-25 in Las Vegas. The program is open to c

     
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    Internal Vibrators

    Vibrators consolidate freshly placed concrete by helping entrapped air to escape.

     

Other Articles

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    Integrating Office Technology

    There comes a time when it is imperative for every concrete contractor to either implement new technology or upgrade their current systems. This could include new or additional software programs, a variety of hardware devices, and many wireless applicatio

     

SPECIAL SUPPLEMENT

Annual Decorative Issue

  • Decorative Products: November 2007

    Decorative concrete products.

     
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    Going High Tech With Decorative

    When we think of art and decorative concrete, we think it's still about creatively working with your hands and using hand tools to apply materials to a canvas—concrete in this case. But every now and then new technology opens the door to creative possibil

     
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    Public Decorative

    Driven by an almost limitless color palette and realistic pattern options, as well as long-lasting beauty, colored and stamped concrete is often the material of first choice for residential paving.

     
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    Coloring Decorative Concrete Green

    Concrete's strength, durability and resource efficiency make it ideal for sustainable buildings, but the predominant raw material for the cement in concrete—limestone—makes concrete plain and gray, not a desirable look for most buildings. Now contractors

     
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    Designing Decorative Concrete Hardscapes

    Without a well thought out creative design, the best executed work gets little notice. The reverse is also true. Award-winning projects are the result of designers and installers working together as a team.

     

Slabs & Floors

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    Adding Fly Ash to Concrete Mixes for Floor Construction

    Wal-Mart Stores Inc. has changed their construction specifications to require all interior steel-troweled concrete floors placed at Wal-Mart Stores, Supercenters, Neighborhood Markets, Sam's Clubs, and Distribution Centers to contain 15% to 20% fly ash by cement substitution.

     
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    State-Of-The-Art Report: Slab-on-Ground Design And Construction

    In the past it has been said, with some justification, that "Concrete slabs on ground are the Rodney Dangerfield of construction—they get no respect." Over the past few years, however, that statement has been become less and less true.

     
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    Concrete for Durable Floors

    The dictionary states that durability is the ability of something to resist wear and tear, and a floor surface needs to resist wear and tear year after year

     
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    Finishing Slab-on-Ground Floors

    Before placing and finishing a slab, some critical work must be done to help ensure that you have a successful placement.

     
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    Why are We Still Having Problems with Moisture?

    Water is an essential ingredient in concrete, but uncontrolled excessive moisture can create a whole host of problems with concrete floor slabs.

     
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    Reinforcement For Slabs on Ground

    There are many opinions floating around as to the benefits, or lack thereof, of reinforcement in slabs on ground. Not all reinforcement works the same way. To be able to understand the potential benefits and negatives of any particular reinforcement system, one has to understand how that system...

     
  • What Makes The Perfect Commercial Floor Slab?

    Usual considerations include such things as the strength of the concrete, the finish, and the spacing between joints. But there are other issues: durability, shrinkage, curling, moisture vapor transmission, and maintenance, to name a few.

     

NEWS & EVENTS

  • Minnesota Bridge Collapses

    Interstate 35W bridge over the Mississippi River collapsed this past August during rush hour traffic. The 40-year-old deck steel truss structure had indicated structure deficiencies in 2001 showing poor fatigue details on the main truss and floor truss system.

     
  • Industry Leader Passes

    Alphonse E. Engelman, owner and CEO of Engelman Construction Inc. and Bethlehem Precast Inc., passed away July 27, 2007 in Philadelphia.

     

ERLIN & HIME ON CONCRETE

  • Physical Sulfate Attack that Isn't

    "In this phenomenon, there are no chemical reactions involving any sulfate salt with any component of the concrete. It stands alone and is its own worst enemy. It needs no help from anyone or anything, except ambient temperature and humidity."

     
  • The Sulfate Panorama

    Sulfur keeps concrete in and out of tune. It is in tune when concrete performs normally, but hits a sour note when in excess or gets out of control for a variety of reasons.

     

TOLERANCES

  • Building a Lean, Mean Statistics Machine

    There was a huge amount of energy and enthusiasm in the room when the ACI Committee 117, Tolerances, met in Puerto Rico in October. One interesting item discussed was a change in the measurement protocol for slab thickness testing.

     
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    Witnessing the Magic

    Sometimes we get complacent and begin to take for granted some truly amazing things that happen all around us every day, like Colin Milberg's laser scanning system, which he is using to gather and analyze data from which he hopes to derive more rational construction tolerances for building with...

     
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    Extracurricular Learning

    This summer the San Diego State University students who signed on to help Colin Milberg collect data for his construction tolerance project learned something they wouldn't get through even the best classroom simulation.

     

SLABS ON GRADE

  • Measuring the Reflectance of Floors

    For big box retail stores, it's not only the levelness and flatness of a floor that counts, it's also the ability of a floor to reflect light that matters.

     

SAFETY MATTERS

  • Safety Equals Profits

    Many factors can motivate you to integrate safety plans and measures into your company's culture, including legal reasons, public image, and employee/labor relations. Creating and executing an emergency action plan is just one step in the process.

     
  • Kneeling in Pain

    As a construction worker, you can't afford time away from the job. That's why it's so important to take care of your joints.

     
  • Now Hear This

    Noise-induced hearing loss is one of the most common occupational diseases and the second most self-reported occupational illness or injury, according to the National Institute for Occupational Safety and Health (NIOSH).

     

DECORATIVE CONCRETE

Other Articles

  • Water-Based Stain

    Designed for finished concrete surfaces, Freestyle Pro water-based stain is self-sealing.

     
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    Collaboration

    Both contractors and designers must collaborate with owners, and sometimes contractors collaborate with each other on joint ventures.

     
  • Cladding for Sensitive Substrates

    Total Wall Moisture Drainage exterior wall cladding provides a beautiful stucco-textured finish, energy efficiency, and excellent moisture resistance.

     
  • Decorative Stone

    This premium decorative stone is manufactured using a proprietary curing and drying process and features special additives to help protect against freeze/thaw damage.

     
  • Streak-Free Hardening

    Perma-Cast is a dry-shake color hardener with a water-reducing wetting agent that allows it to integrate quickly and easily into the concrete surface.

     
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    Surface Retarders for Exposed Aggregate Concrete

    In the last couple years, there has been a revival of interest in exposed aggregate, in part due to the introduction of micro-exposed finishes. Surface retarding agents have changed in recent times as well.

     
  • Remote-Control Grinding

    The HTC 950 RX remote-controlled grinder uses four-head technology to balance the grinding process and make grinding easier.

     
  • Stamps for Professionals

    The Magnumcrete stamp system offers a large selection of systems to choose from.

     
  • Architectural Formliners

    Custom Rock formliners use actual textures to simulate stone, rock, brick, block, granite, and other appearances.

     
  • Water-Based, Colored Sealer

    Advanced Surfaces' water-based, pigmented concrete sealer can be applied to stamped concrete, brick pavers, and any concrete surfaces.

     
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    When Concrete is too Wet

    When there is too much water in the concrete, there is greater shrinkage with the possibility for more cracks and reduced compressive strength.

     
  • Decorative Plaster

    Solution, a Venetian plaster product, can be used for interior and exterior applications to provide a spatula effect.

     
  • Dramatic Concrete Dye

    Vivid Concrete Dye adds architectural drama to any interior concrete surface.

     
  • Custom-Designed Stamps

    Custom stamps, such as this Aztec calendar, provide a touch of the extraordinary to almost any decorative product.

     
  • Durable Stencils

    Quick-Pattern design stencils are constructed of brown virgin paper/cardboard instead of recycled white paper for durability in overlay applications.

     
  • Carvable Overlay

    Tru-Stamp is a stampable, carvable overlay that can be used early while still holding its moisture content, improving working time and producing superior impressions, realistic texture, and good color characteristics.

     
  • Eco-Friendly Pavers

    Permapave Permeable Pavers are natural stone pavers that eliminate 100% of gross pollutants from waterways.

     

JOBSITE PRODUCTS

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    Paving the Way Into the Future

    There are two ways to form curbs and gutters: using traditional forms or using the slipform method. The slipform method is used more often for high-production jobs.

     
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    Flatwork Saws

    When choosing a saw to fit your particular needs, there are several variables to consider including depth of cut, blade size, revolutions per minute (rpm), weight, propulsion, and power source.

     

PRODUCTS SOLVING PROBLEMS

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    Winter Blues Melt Away Fast

    The Powerblanket is lightweight, waterproof, and runs on 120 V, but most of all, it is more than 5000% cheaper to operate than using propane.

     
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    Prefab Saves Time and Money

    Florida school districts are continually fighting rebuilding costs due to damaging storms—a common problem in the hurricane-ridden area. A growing student population on campuses and the need for strong, safe buildings demanded a better solution.

     
  • Stabilization Leads to Speedy Transformation

    The highly complex transition to a gothic cross from an octagonal shape in the cross section of the Maumee River Crossing, now known as the Veterans' Glass City Skyways, was the largest and most expensive project ever undertaken by the Ohio DOT.

     
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    Speedy Dam Project

    Seven Dynapac rollers were used on the Nam Theun 2 dam project—one of the world's largest hydroelectric dam designs.

     
  • Fiber-Reinforced Concrete Withstands Heavy Loads

    The Grand Rapids, Mich.-based Caterpillar warehouse demands a lot of its 110,000-square-foot concrete slab.

     

PROBLEM CLINIC

  • Cutting Concrete Without Fear

    I have heard that a big OSHA enforcement effort was coming where workers are exposed to airborne silica from concrete-related operations, such as grinding and cutting. Is that still on the horizon?

     
  • Which Direction Should It Tilt?

    When erecting concrete tilt panels, does it violate OSHA regulations to have a tilt-up panel tilted toward the crane during the erection process?

     
  • Wind Chill and Concrete

    When the temperature is above 32F but the wind chill is well below 32F, does that mean the concrete could freeze?

     
  • Sealing Terminology

    What is the difference between a sealer and a sealant?

     
  • Is Slump Test Outdated?

    A lot of the concrete we're now placing would be considered “low slump.” Years ago it would have meant trouble for the crew. But today, we're able to work with most of the low slump concrete we get. Is the slump test outdated?

     
  • Concrete As Insulation

    What is the R-value of concrete?

     
  • Problem Clinic: Cosmetic Slab Repairs

    There was a thunderstorm shortly after our slab was poured. The contractor covered the wet concrete with plastic sheeting to protect it from the rain. The next day there were marks from the rain and the plastic sheeting, as well as some light footprints. What can I do to resurface the affected...

     
  • Problem Clinic: Are Polycarboxylates Worth It?

    Is it worth the performance enhancement and peace of mind to go with the more expensive polycarboxylate admixture as opposed to using a naphthalene-, lignin-, or melamine-based admixture?

     
  • Problem Clinic: Concrete and Pet Waste

    What effect, if any, do dog feces and urine have on finished concrete?

     
  • Problem Clinic: How Curling Happens and How to Control It

    I am about to install a 10,000-square-foot floor and the owner believes that wet curing the floor will result in no curling. Is this true?

     

CONTRACTOR TO WATCH

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    Scale Construction Inc.

    Scale Construction Inc. is a family owned, family operated construction company that specializes in general construction, construction management services, and design/ build.

     
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    Builders Plus Inc.

    Builders Plus Inc. began as a shell contractor for apartments and residential homes.

     

WOMEN IN CONCRETE

  • Help is Just a Click Away

    Although sometimes small in numbers, women still persevere in areas that are traditionally devoted to men. In the age of the Internet, women are finding resources through the Web to educate themselves and network with each other.

     

Other Articles

  • Artistry Presenter Carves Out a Niche in Decorative Field

    Nathan Giffin, owner and director of Hickory Hills, Ill.-based Vertical Artisans, has spent nearly a decade specializing in hand-carved vertical concrete.

     
  • Concrete Artist Uses New World Techniques to Create Old-World Effects

    David Mitchell—one of the twelve presenters participating in this year's Artistry in Decorative Concrete demonstrations—started Pure Texture Inc. four years ago. In that span of time, his company has built a reputation for creating beautiful, dramatic effects on a range of surfaces.

     
  • In Memoriam: David R. Arnold

    David R. Arnold of L. M. Scofield Company passed away on December 18, 2007 at the age of 84.

     
  • Nonresidential Construction to Remain Strong

    FMI, which is made up of management consultants and investment bankers specific to the construction industry, reported that the outlook for construction in 2008 has been revised downward since the third quarter in 2007. However, certain segments will remain strong.

     
  • What is Fly Ash?

    Fly ash is a byproduct from burning pulverized coal in electric power generating plants. During combustion, mineral impurities in the coal fuse in suspension and float out of the combustion chamber with the exhaust gases. As the fused material rises, it cools and solidifies into spherical glassy...

     
  • NRMCA Seeks Abstracts for 2008 Concrete Technology Forum

    The National Ready Mixed Concrete Association is now seeking abstracts for its 2008 Concrete Technology Forum: Focus on Sustainable Development, scheduled for May 20-22 in Denver.

     
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    Internal Vibrators: Sidebar

    More information on the Hood Canal Floating Bridge.

     
  • Pervious, a Popular Response

    As many of you know, pervious concrete is used in parking lots, pavements, and airport runways as a measure to help reduce the amount of stormwater present on the pavement following a rain event.