1. ERDC Knowledge Core
  2. Engineer Research and Development Center (ERDC)
  3. Cold Regions Research Engineering Laboratory (CRREL) - (2/1/1961 - present)
  4. Publication
  5. Technical Report
Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/39579
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dc.contributor.authorWatts, Benjamin E.-
dc.contributor.authorKennedy, Danielle E.-
dc.contributor.authorThomas, Ethan W.-
dc.contributor.authorBernier, Andrew P.-
dc.contributor.authorOren, Jared I.-
dc.date.accessioned2021-01-26T22:36:03Z-
dc.date.available2021-01-26T22:36:03Z-
dc.date.issued2021-01-
dc.identifier.govdocERDC/CRREL TR-21-1-
dc.identifier.urihttps://hdl.handle.net/11681/39579-
dc.identifier.urihttp://dx.doi.org/10.21079/11681/39579-
dc.descriptionTechnical Reporten_US
dc.description.abstractRecent laboratory results confirm that it is possible to protect concrete from freezing solely using chemical admixtures and indicate that the amount of admixture required may be significantly less than previously recommended. Researchers have also verified that admixture-based freeze protection can produce concrete that is durable to winter exposure for a minimum of 20 years, through petrographic examination of core specimens obtained from past field demonstrations. Freeze protection for concrete using chemical admixtures alone has been an area of active research for 3 decades; however, the most recent methodology recommends very high addition rates of accelerating and corrosion inhibiting admixtures, which result in significant challenges, including slump loss, rapid setting, and potentially excessive temperature rise. As part of a laboratory study, researchers systematically varied the dosage of freeze protection admixtures used in concrete cured in a 23 °F environment. Preliminary findings indicate that a 50% reduction in admixture dose maintained adequate freeze protection and resulted in compressive strengths exceeding those of room-temperature controls at 7 and 28 days. The combination of improved handling, reduced cost, and verified durability associated with the use of admixtures for freeze protection makes a compelling case for broader adoption of this technique in winter operations.en_US
dc.description.sponsorshipPrepared for Headquarters, U.S. Army Corps of Engineers ; Under PE62784/T53, “Innovative Construction Materials for the Arctic Program.”en_US
dc.format.extent97 pages/32.79 MB-
dc.format.mediumPDF-
dc.language.isoen_USen_US
dc.publisherCold Regions Research and Engineering Laboratory (U.S.)en_US
dc.publisherEngineer Research and Development Center (U.S.)-
dc.relation.ispartofseriesTechnical Report (Engineer Research and Development Center (U.S.));no.ERDC/CRREL TR-21-1-
dc.rightsApproved for public release; distribution is unlimited-
dc.sourceThis Digital Resources was created in Microsoft Word and Adobe Acrobat.-
dc.subjectConcrete--Service lifeen_US
dc.subjectConstruction--Cold weather conditionsen_US
dc.subjectConcrete--Effect of temperature on Concrete--Additivesen_US
dc.titleLong-Term Durability of Cold Weather Concrete : Phase IIen_US
dc.typeReport-
Appears in Collections:Technical Report

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