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Allen Face has been writing articles for the industries informational resource Concrete Construction since 1982. Please visit their website to browse through his articles as well as a trove of other useful information.

For your convenience, we have provided a summary and links to several of his articles here for you as well.

 

A Time Bomb in Floor Tolerances?

Warning: Familiar flatness specifications are dangerous to your company’s health

Published Nov 1, 1982

Updates
For years contractors regularly produced out-of-spec floors because owners hadn't really needed their floors to be as flat as they were specifying. Extreme flatness was desirable but for the most part nonessential. Now, however, technology in warehouses and factories has resulted in the high-rise, narrow-aisle lift truck that simply will not function properly on an unflat floor. Nor is the problem limited to warehouses and slabs-on-grade. High-rise office buildings, for example, are now employing modular, relocatable partition systems which require that clearances between ceiling and floor be maintained within strict limits or the walls cannot be installed as designed...

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A House of Cards

Published Oct 2, 2009

Updates
ACI 318 excludes it from consideration as part of the structure. ACI 302 and 360 both focus on its utilitarian character. So obvious and pedestrian is its nature that neither American Concrete Institute, Portland Cement Association, Post-Tensioning Institute, Wire Reinforcement Institute, or U.S. Army Corps of Engineers state what constitutes a failure in its design. For all its unpretentiousness, the lowly slab on grade is consistently the center of more disputes over alleged quality deficiencies than any other building element. It's been 40 years since Neil Armstrong confirmed man's engineering prowess. So why is it that the concrete flooring industry still finds it difficult to please its customers?

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Ensuring Success

Published Nov 9, 2009

Updates
Ultimately, success means getting paid on time. If the owner and general contractor are both solvent and reputable (items one and two on the due-diligence checklist), then the flatwork subcontractor's success will depend most upon the owner's satisfaction. Unfortunately, the owner's happiness is often at odds with the floor described in the plans and specifications. Because Rule No. 1, which appeared in last month's column, ensures some disagreement between what the owner really wants and what the design is calling for, it is naive to assume, as most flatwork subcontractors do, that success naturally must follow competent execution of the contract documents. This subtlety is summarized in Martin's Law.

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Dog Work

Published Dec 9, 2009

Updates
Constitutionally, flatwork contractors are office-averse and field-inclined. Given the choice between sorting through pages of fine print and getting splattered head-to-toe with concrete, they'll opt for the latter every time. Paperwork, after all, is just a nuisance. Placing and finishing concrete is what they do.

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Allen Face & Company

830 A Roundabout Ct
West Dundee, IL 60118
Telephone: 224-699-9000 Fax: 847-844-0325

LaserStrike, LLC

2725 Old Wrightsboro Road, Unit 12-5
Wilmington, NC 28405
Telephone: 910-763-4501 Fax: 910-763-4502