|Lead Organization:||Federal Highway Administration|
|Partners:||MT, NHDOT, NY, PADOT, WI, WY|
|Status:||Cleared by FHWA|
|Est. Completion Date:||Jun 01, 2013|
|Last Updated:||Jul 25, 2012|
|Contract End Date:|
|Total Commitments Received:||$205,000.00|
|100% SP&R Approval:||Approved|
|Organization||Year||Commitments||Technical Contact Name||Funding Contact Name||Contact Number||Email Address|
|Montana Department of Transportation||2006||$10,000.00||Mac McArthur||Susan Sillickemail@example.com|
|Montana Department of Transportation||2007||$5,000.00||Mac McArthur||Susan Sillickfirstname.lastname@example.org|
|New Hampshire Department of Transportation||2006||$20,000.00||Edward Welch||Ann Scholzemail@example.com|
|New Hampshire Department of Transportation||2007||$20,000.00||Edward Welch||Ann Scholzfirstname.lastname@example.org|
|New York State Department of Transportation||2006||$30,000.00||Donald Streeter||Gary Frederickemail@example.com|
|Pennsylvania Department of Transportation||2007||$20,000.00||Roger Apple||Lisa Tarson||(717) firstname.lastname@example.org|
|Pennsylvania Department of Transportation||2008||$20,000.00||Roger Apple||Lisa Tarson||(717) email@example.com|
|Wisconsin Department of Transportation||2006||$10,000.00||James Parry||Ethan Seversonfirstname.lastname@example.org|
|Wisconsin Department of Transportation||2008||$10,000.00||James Parry||Ethan Seversonemail@example.com|
|Wyoming Department of Transportation||2006||$30,000.00||Tim McDowell||Michael Patritchfirstname.lastname@example.org|
|Wyoming Department of Transportation||2007||$30,000.00||Tim McDowell||Michael Patritchemail@example.com|
Combinations of chemical admixtures have been developed that allow the placement and curing of concrete at temperatures below freezing without the need for thermal protection. The admixture formulations used in `antifreeze concrete¿ self-protect against freezing to a minimum internal concrete temperature of °C. As part of the broader title Extending the Season for Concrete Construction and Repair, two research phases have been completed by way of sponsorship through the Transportation Pooled-Fund (TPF) program.
The final report for Phase I - Establishing the Technology, designation TPF-5(003), was released in February 2004. Supported by 10 northern State Departments of Transportation (DOTs), this phase demonstrated the feasibility and practicality of using antifreeze admixtures in concrete, and devised the tools needed to design, mix, place, and cure concrete in below-freezing weather. Antifreeze formulations were used at five field sites during winter seasons. ASTM C 1622, Standard Specification for cold-Weather Admixture Systems, approved in 2005.
The results from Phase II - Defining Engineering Parameters, designated as TPF-5(075), were released in April 2006. Phase II, supported by 9 State DOTs, defined the effect of the Phase I antifreeze formulations on the freeze-thaw durability of concrete. Exposed to freeze-thaw cycling, the durability increased with admixture dosage, except at higher dosages, where durability declined. These findings suggested a limit to the maximum amount of admixture that may be added into concrete. Both reports are available at http://www.crrel.usace.army.mil/
Currently, concrete made according to the Phase I recommendations is capable of resisting freezing to an internal concrete temperature of at least ¿5 °C. However, experience has shown that this much protection is not always necessary, that is, a ¿5 °C concrete can be over-designed for many applications, and this may be more costly than is necessary.
External to the pooled-fund program, three field studies were conducted in Alaska during 2007 and 2008. The field studies clearly demonstrated the need for development of tools and guidance on the usage of antifreeze concrete mixes. These tools are needed for designing the optimum admixture dosage for a given job site with varying weather conditions at any job location and form the basis for the Phase III investigation.
The primary objective of this proposed effort is to develop tools and guidance to specify dosage levels of admixtures used in antifreeze concrete to correspond with the varying cold weather conditions experienced at any job location.
The study consists of three primary components. A review of the data collected from previous field sites will be used to identify the required inputs needed in designing antifreeze concrete mixes. This information will be useful in developing guidance to design admixture dosages for concrete to meet the varying job site environmental conditions. A third, currently optional component of the study, will develop a computer-based design tool to allow the user to evaluate a full range of admixture dosages to fit the anticipated weather conditions at a given job location.
Research study for Phase III is in Progress.
Subjects: Maintenance Materials and Construction
|Extending the Season for Concrete Construction and Repair, Phase III―Guidance for Optimizing Admixture Dosage Rates, June 2014||http://acwc.sdp.sirsi.net/client/search/asset/1035260||Final Report||Public|
|Lead Agency Acceptance Memorandum||TPF-5(150)0001SignedOriginal.pdf||Memorandum||Public|
|Quarterly Report: December 2008||quarterly_report_2008-12.pdf||Quarterly Progress Report||Public|
|Quaterly Report: Jan - March 2009||quarterly_report_2009-03.pdf||Quarterly Progress Report||Public|
|Quaterly Report: July - Sept 2009||TPF5-(150)_2_Progress_Report_JUL-SEP2009.doc||Quarterly Progress Report||Public|
|Quarterly Report - January - March 2010||Progress_Report_January-March_2010.pdf||Quarterly Progress Report||Public|
|Quarterly Report - April- September 2010||ProgressReport_April_to_September_2010.pdf||Quarterly Progress Report||Public|
|Quarterly Report - January - March 2011||TPF-5(150) 7 ProgressReport_Jan-Mar2011v3.pdf||Quarterly Progress Report||Public|
|Quarterly Report - April - June 2011||TPF-5(150) 8 ProgressReport_Apr-Jun2011.pdf||Quarterly Progress Report||Public|
|Quarterly Report: July-September 2011||TPF-5(150) 9 ProgressReport_JUL-SEP2011_31OCT2011.doc||Quarterly Progress Report||Public|
|Progress Report Jan-Mar 2012||TPF-5(150)ProgressReport_JAN-MAR2012.doc||Quarterly Progress Report||Public|
|Progress Report Jul - Sep 2012||TPF-5(150)ProgressReport_JUL-SEP2012.doc||Quarterly Progress Report||Public|
|Quarterly Report -April-June 2012||TPF-5(150)ProgressReport_31JUL2012.doc||Quarterly Progress Report||Public|
|Quarterly Report - Oct - Dec 2012||TPF-5(150)ProgressReport_OCT-DEC-2012.doc||Quarterly Progress Report||Public|
|Quarterly Report: Jan-March 2013||TPF-5(150)ProgressReport_JAN-MAR2013.doc||Quarterly Progress Report||Public|
|Quaterly Report: April-June 2009||TPF5-(150) 2 Progress Report_APR-JUN2009.doc||Quarterly Progress Report||Public|
|Quarterly Report: Oct - Dec 2009||TPF5-(150) 2 Progress Report_OCT-DEC2009.doc||Quarterly Progress Report||Public|
|Quarterly Report: April-June 2013||TPF-5_150_ProgressReport_APR-JUN2013.pdf||Quarterly Progress Report||Public|
|Quarterly Report: July-September 2013||TPF-5_150_ProgressReport_JUL-SEP2013.pdf||Quarterly Progress Report||Public|
|Quaterly Report: Oct-Dec 2013||TPF-5_150_ProgressReport_OCT-DEC2013.pdf||Quarterly Progress Report||Public|