Hair Cracks, Crazing or Map Cracks on Concrete Surfaces
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As an introduction to the subject to be discussed I do not think it would be amiss to say a word regarding what is popularly called artifical stone. Such introduction is more particularly appropriate for the reason that the strongest cement stone that can be made, and which more nearly resembles the natural product, unfortunately contains those qualities which, under the usual process of manufacturing cement stone, make the product more liable to those disfigurements which are best described as hair cracks or crazing. I would like to call your attention to the word "artifical stone." To my mind this word is objectionable; it does not describe and it is untrue.