October 1964 Table of Contents

Features Plastic cracking

What is plastic cracking in concrete? Read more

Features Etching indoor wall

Etching with acid followed by a neutralizing rinse is, we all know, an accepted method of cleaning a concrete wall surface. But what if the surface is indoors? I am thinking in terms of an exposed-aggregate panel in a block wall over a parquet floor. I know this should have been done before the floor was laid, but it wasn't, and at the moment the risk looks considerable. Read more

Features White cement

This may sound simple, but what makes white cement white? Read more

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