September 1973 Table of Contents

Problem Clinic Did Lumber Industry Goof Up Shoring?

Now that a two-by-four is only 1 1/2 by 3 1/2 inches instead of 1 5/8 by 3 5/8 is it necessary to compensate in figuring loads on shores? Read more

Problem Clinic No Secrets From OSHA

Must the OSHA inspector actually see an unsafe work practice before he cites the employer for a violation? Read more

Problem Clinic Testing Vibrator

How can you tell for sure whether a vibrator is delivering enough energy? Read more

Problem Clinic Design Your Own Concrete Shoes

On a mass concrete job it will be necessary to install form anchors at the top of a placement before starting another. Workmen must walk on the fresh surface to put these in place. Will this traffic cause us trouble? It is awkward to keep placing planks e Read more

Problem Clinic Unprepared Pavements Don't Hold Paint

What is the best paint or other material for traffic marking? Read more

Problem Clinic Rusty Rebars—Accept, Renovate or Reject?

Should reinforcing steel be cleaned of rust before use? Read more

Problem Clinic Architectural Concrete Panels on Display

Problem Clinic Read more

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