ACI 211.1 Standard Practice for Selecting Proportions for Normal, Heavyweight, and Mass Concrete

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ACI 211.1 Document Information:

Title
Standard Practice for Selecting Proportions for Normal, Heavyweight, and Mass Concrete

American Concrete Institute

Publication Date:
Jan 1, 1991

Scope:

This Standard Practice describes methods for selecting proportions for hydraulic cement concrete made with and without other cementitious materials and chemical admixtures. This concrete consists of normal and/or high-density aggregates (as distinguished from lightweight aggregates) with a workability suitable for usual cast-in-place construction (as distinguished from special mixtures for concrete products manufacture). Also included is a description of methods used for selecting proportions for mass concrete. Hydraulic cements referred to in this Standard Practice are portland cement (ASTM C 150) and blended cement (ASTM C 595). The Standard does not include proportioning with condensed silica fume.

The methods provide a first approximation of proportions intended to be checked by trial batches in the laboratory or field and adjusted, as necessary, to produce the desired characteristics of the concrete.

U.S. customary units are used in the main body of the text. Adaption for the metric system is provided in Appendix 1 and demonstrated in an example problem in Appendix 2.

Test methods mentioned in the text are listed in Appendix 3.

Keywords:

absorption

admixtures

aggregates

blast-furnace slag

cementitious materials

concrete durability

concretes

consistency

durability

exposure

fine aggregates

fly ash

heavyweight aggregates

heavyweight concretes

mass concrete

mix proportioning

pozzolans

quality control

radiation shielding

silica fume

slump tests

volume

water-cement ratio

water-cementitious ratio

workability

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