November 1971 Table of Contents

Problem Clinic Shuffleboard Leveling

We contracted to have a shuffleboard court installed and furnished the official specifications to the contractor. The result was that the top was not level. We now desire to have a level top placed over the present job. Read more

Problem Clinic Retarders Explained

Just what is a retarder, as referred to in "Waste Materials in Concrete"? (September 1971, page 372.) What is it chemically and what does it do to the strength characteristics of the concrete? Read more

Problem Clinic Queries About Wirand Concrete

Although Wirand concrete was labeled as a new material, the idea of using short fibers has been around for a long time but never appeared economically feasible. Read more

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