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Home > Committees > Directory of Committees > A Committee Home
Committee Mission: Develop and report information for the aggregates (except lightweight) used in concrete.
Goals: 1) Revise "Guide for Use of Normal Weight and Heavyweight Aggregates in Concrete" (ACI 221R); 2) Revise "Report on Alkali-Aggregate Reactivity" (ACI 221.1R); 3) Develop document on freeze-thaw durability of normal weight aggregates for use in concrete.
Chair: Leandro Sanchez
TAC Contact: Anton Schindler
Upcoming Convention Sessions:
Recent Developments in Test Methods and Risk Management for Aggregate Reactions, Part 1 of 3ACI Fall Convention 2023 - Boston, MA
Recent Developments in Test Methods and Risk Management for Aggregate Reactions, Part 2 of 3ACI Fall Convention 2023 - Boston, MA
Recent Developments in Test Methods and Risk Management for Aggregate Reactions, Part 3 of 3ACI Fall Convention 2023 - Boston, MA
Practical Usage of Aggregates’ Gradation and Packing Towards Concrete Low Global Warming Potential ACI Spring Convention 2024 - New Orleans, LA
Published Committee Documents:
• ACI PRC-221.1-98: Report on Alkali-Aggregate Reactivity (Reapproved 2008)
• ACI PRC-221-96: Guide for Use of Normal Weight and Heavyweight Aggregates in Concrete (Reapproved 2001)
• ACI PRC-221S-96 Guide for Use of Normal Weight and Heavyweight Aggregates in Concrete - Spanish Language
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