STANDARD PRACTICES FOR SELECTING PROPORTIONS FOR NORMAL, HEAVYWEIGHT, AND MASS CONCRETE (ACI 211.1-91)
This publication, describes, with examples, two methods for selecting and adjusting proportions for normal weight concrete, both with and without chemical admixtures, pozzolanic, and slag materials. One method is based on an estimated weight of the concrete per unit volume; the other is based on calculations of the absolute volume occupied by the concrete ingredients. The procedures take into consideration the requirements for placeability, consistency, strength, and durability. Example calculations are shown for both methods, including adjustments based on the characteristics of the first trial batch. The proportioning of heavyweight concrete for such purposes as radiation shielding and bridge counterweight structures is described in an appendix. This appendix uses the absolute volume method, which is generally accepted and is more convenient for heavyweight concrete. An appendix provides information on the proportioning of mass cocnrete. The absolute volume method is used bsecause of its general acceptance.
- Reported by Committee 211.
Detroit, MI United States 48219
- Publication Date: 1991-12
- Features: Appendices; Figures; References; Tables;
- Pagination: 38 p.
- TRT Terms: Admixtures; Concrete construction; Construction management; Mass concrete; Mix design; Pozzolan; Slag; Standards
- Uncontrolled Terms: Selecting
- Old TRIS Terms: Heavy weight concretes
- Subject Areas: Construction; Highways; Materials; I32: Concrete;
- Accession Number: 00621813
- Record Type: Publication
- Files: TRIS
- Created Date: Apr 30 1992 12:00AM