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Title: Properties Of Cements And Concretes Containing Fly Ash

Author(s): Raymond E. Davis, Roy W. Carlson, J.W. Kelly, Harmer E. Davis

Publication: Journal Proceedings

Volume: 33

Issue: 5

Appears on pages(s): 577-612

Keywords: none

DOI: 10.14359/8435

Date: 5/1/1937

Presents results of extensive tests to determine the feasibility of using various fly ashes with various types of portland cement. (Fly ash is the residue from burning powdered coal, caught by precipita-tors). Properly constituted fly ash is an excellent pozzolan. Tests to determine water requirement, strength, volume change, heat of hydration, resistance to freezing and thawing, and resistance to sulfate action indicate that fly ash of moderately low carbon content and moderately high fineness can be advantageously used in percentages up to 30 for ordinary construction and in percentages upto 50 for heavy construction. Suggested specification requirements for fly ash are given.