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The Structural Engineer, Volume 2, Issue 4, 1924
Calcium Chloride in Cement If from 6 to 10 per cent of calcium chloride is added to cement on mixing when the temperature is below 20 deg. Fahr., not only is freezing prevented, but setting is hastened and increased hardness secured. But such all addition is not safe in reinforced work unless the steel is completely imbedded. In ordinary rendering on metal lathing, there were early signs of bad deterioration of the lathing. (U.S.A., Bureau of Standards)
A TRUE record of the repairs of Tintern Abbey will not fail to indicate that a very great advance in the scientific analysis, understanding and treatment of ancient monuments was made possible by cxpericnce as the work progressed, and that as the result of this fuller knowledge certain expedients were adopted in the later stages of the work which would have been considered absolutely beyond the scope of the conservator’s art at the commencement of operations. William Harvey
IV. Mortar Voids and Water Content, The magnitude of the voids and its change with additions of water will depend upon the gradation of the particles of F.A., each A. having its own individuality. J. Singleton-Green