Title: Proposed Revision of ACI 211.1-70: Reccommended Practice for Selecting Proportions for Normal Weight Concrete*

Author(s): ACI Committee 211

Publication: Journal Proceedings

Volume: 70

Issue: 4

Appears on pages(s): 253-255

Keywords: barite;heavyweight aggregate;heavyweight concrete;hematite;ilmenite;iron ores;limonite;mix proportioning;quality control;radiation shielding.

DOI: 10.14359/11204

Date: 4/1/1973

Abstract:
This proposed revision adds to the existing standard an appendix on proportioning heavyweight as radiation shielding and bridge counterweight structures. Although both proportioning methods of the existing ACI 211.1-70 are applicable to heavyweight concrete, the appendix is based on the absolute volume method which is generally accepted and weight concrete . The new appendix contains basic information on heavyweight concrete as well as examples showing how to select its proportions.