Color in Autoclaved Products


  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal


Title: Color in Autoclaved Products

Author(s): C. James Gulde

Publication: Special Publication

Volume: 32


Appears on pages(s): 161-192

Keywords: autoclaving; carbon; chromium oxides; colored concrete; colorimetry; colors (materials); concrete block; concrete bricks; curing; iron oxides; mixing; mix proportioning; phthalocyanines; pigments; portland cements; quality con trol;

Date: 7/1/1972

of the materials used in autoclaved block and beick manufacutre contribute to the color, but piin ents contribute the most. Mineral pigments and some others are satisfactory, but all are not effective, and some contain undesirable contaminants. For many colors it is possible to duplicate, in masonry units, any combination of hue, value, and chroma. Versatility in color production and reproduction requires a simple color laboratory and the es-tablishment of a library of color specimens made with the masonry ingredients used by the plant. One patented procedure is based on the introduction of a fluidized color mix onto one face of the machine mold box immediately before each filling of the mold box.