SYMPOSIA PAPER
Published:
01 January 1978
STP35635S
Chapter 35—Shape, Surface Texture, Surface Area, and Coatings
The equidimensionality and angularity of coarse and fine aggregate particles, the shape of the relief and the degree of relief on their surfaces, the amount of surface area caused by the kind and degree of relief, and the chemical and physical nature of coatings, if present, are all characteristics that significantly affect the properties of both fresh and hardened concrete. Differences in particle shape and surface texture, as between different rock types, will affect the bulk void contents and frictional properties of the aggregates and, in turn, the ingredient proportions, mechanical properties, and economy of the unhardened concrete mixtures made from them.
Author Information
Ozol, MA
Martin Marietta Laboratories, Baltimore, Md.
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Details
Developed by Committee: C09
Pages: 584–628
DOI: 10.1520/STP35635S
ISBN-EB: 978-0-8031-4712-6
ISBN-13: 978-0-8031-0612-3