August 1972 Table of Contents

Problem Clinic Accelerators for Cement

Are there any types of cement accelerators that we should know about that could be used instead of calcium chloride? Read more

Problem Clinic Pool Construction Methods

Is it cheaper to build concrete swimming pools by shotcreting or by casting in place? Read more

Problem Clinic Shock Absorbing Play Areas

Some colored rubber blocks that are used like patio blocks on playgrounds in the Netherlands look as though they would reduce injuries from falling. They seem to be used mainly in areas where playground equipment has been installed, while regular patio bl Read more

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