Proportioning of Mixes for Steel Coarse Aggregate and Limonite and Magnetite Matrix Heavy Concretes

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Title: Proportioning of Mixes for Steel Coarse Aggregate and Limonite and Magnetite Matrix Heavy Concretes

Author(s): David L. Narver

Publication: Journal Proceedings

Volume: 52

Issue: 1

Appears on pages(s): 537-548

Keywords: no keywords

Date: 1/1/1956

Abstract:
Discusses structural concrete of heavy weight, utilizing limonite and magnetite as fine aggregate and graded steel scrap as coarse aggregate. Criteria are presented for proportioning a concrete mix for specific unit weight as well as specific compressive strength. Employing various combinations of conventional coarse aggregate and steel aggregate and either conventional, liomonite, or magnetite fine aggregate, concrete can be produced with a density from 140 to 330 lb per cu ft. Compressive strength of 3000 psi is reported to be obtainable without difficulty.