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209 - Creep and Shrinkage in Concrete


Committee Mission: Develop and report information on creep and shrinkage of concrete and concrete structures.

Goals: 1) Complete and publish a new report Analysis of Creep and Shrinkage Effects in Concrete Structures already approved at 90% by the committee; 2) Update the document Report on Factors Affecting Shrinkage and Creep of Hardened Concrete (ACI 209.1R-05); 3) Provide information to the users on the limitations of the models included in "Guide for Modeling and Calculating Shrinkage and Creep in Hardened Concrete" (ACI209.2R-08) and their predictions, the variability of testing conditions, and test results and provide means and methodology to calibrate models to fit test data; 4) Consider for future documents: a) shrinkage and creep of new materials, e.g. self-consolidating concrete; b) calibration and updating shrinkage and creep models; c) early-age effects of shrinkage and creep; d) evaluation of new creep and shrinkage models; e) predicting long-term creep and shrinkage from short-term data; f)establishment of profession oriented guidesline for 3D time-dependent numerical analysis of creep effects in concrete structures based on rate-type creep laws; thses guidelines should enable professional engineers to establish adequate computational procedures and programs and/or to use with adequate understanding of commercial software programs based on these guidelines.

Chair: Gianluca Cusatis

TAC Contact: Andrew Taylor

Documents Under Development:
• 209.XR (Future): Time Dependent Effects in Concrete Structures
• 209.YR (Future): Report on Rate Type Models for the Analysis of Creep and Shrinkage

Work Folders (ACI)

Meeting Agenda & Approved Minutes
Meeting--March 26, 2018
Meeting--October 16, 2017
Meeting--March 27, 2017
Meeting--October 24, 2016
Meeting--April 18, 2016
Meeting--November 09, 2015
Meeting--April 13, 2015
Meeting--October 27, 2014
Meeting--March 24, 2014
Meeting--October 21, 2013
Meeting--April 15, 2013
Meeting--October 22, 2012
Meeting--March 19, 2012
Meeting--October 17, 2011
Meeting--April 04, 2011
Meeting--October 25, 2010
Meeting--March 22, 2010
Meeting--November 09, 2009
Meeting--March 16, 2009
Meeting--November 03, 2008
Meeting--March 31, 2008
Meeting--October 16, 2007
Meeting--April 23, 2007
Meeting--November 06, 2006
Meeting--March 20, 2006
Meeting--November 07, 2005
Meeting--April 17, 2005
Meeting--October 25, 2004
Meeting--March 15, 2004
Meeting--September 29, 2003
Meeting--March 31, 2003