October 1979 Table of Contents

Problem Clinic Progressive Disintegration

When about 25 years old our garage floor began to disintegrate, but only from the front edge. Thin, parallel cracks would form, then enlarge, and pieces would then break off. This continued for about 10 years, by which time the edge of the slab had retrea Read more

Problem Clinic Skin Burns From Concrete

Why will concrete severely burn the skin? Years ago I ended up with third degree burns on my legs, though prior to that I had concrete on my legs many times and never was burned. I know that there are several concrete burn cases a year at most hospitals, Read more

Problem Clinic Electric Cable for Snow Melting Systems

I need information about electrical systems embedded in a slab to remove snow and ice during the winter. Read more

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