STP169A

    Porosity

    Published: Jan 1966


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    Abstract

    The pore characteristics of concrete aggregates have been called “… the most important properties of aggregate materials” [1]. Hardly any property of aggregates, physicochemical or mechanical, is not significantly affected by the pore characteristics. There are many experimental methods for measuring these characteristics or properties related thereto. Frequently the value obtained is strongly dependent on the method, and considerable specificity is needed to avoid ambiguity. The purpose of this article is to outline these methods and their limitations, especially as applied to aggregates, and to describe the ways in which the pore characteristics affect the important properties of aggregates and of the concrete made therewith. Because of the generality of the influence of aggregate pore characteristics, an overlap with other papers in this symposium is inevitable.


    Author Information:

    Dolch, W. L.
    Professor of engineering materials, Purdue University, Lafayette, Ind.


    Paper ID: STP49895S

    Committee/Subcommittee: C09.60

    DOI: 10.1520/STP49895S


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