Title:
Updates to the ACI 201.1R Chapter on Aggregate Reactions
Author(s):
Matthew Adams
Publication:
Web Session
Volume:
ws_F23_MatthewAdams.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
10/29/2023
Abstract:
The upcoming revision to ACI 201.1R will feature an updated version of Chapter 5 - Aggregate Reaction. This chapter, which used to be titled Alkali-Aggregate Reactivity, has been updated to present the state-of-the-art understanding on aggregate reactions in concrete, recommended test methods for examining aggregate reactions in concrete, and recommendations for design of concrete with potentially reactive aggregates. The revised chapter also includes a brand-new section covering iron sulfide mineral oxidation. This presentation will summarize the revisions to the chapter including any changes to recommendations for testing for and preventing alkali-aggregate reaction and iron sulfide mineral oxidation.