April 1973 Table of Contents

Problem Clinic More on Curling Slabs

What are the probable causes and possible remedies for curling of five-inch-thick interior slabs on grade 20,000 to 50,000 square feet in area and containing welded wire mesh? These have sometimes been placed in heated areas, sometimes in covered areas, b Read more

Problem Clinic Cracking of Precast Panels

We are casting sandwich wall panels and experiencing cracking over the sheets of insulation. The panels are eight inches thick and approximately 11 feet wide and 35 feet long. Insulation sheets are one inch thick. Some sheets are two by four feet and some Read more

Problem Clinic Correct SI (Metric) Terms

What is meant by "SI units," "newtons" and "pascals"? Read more

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