Methods for Calculating Activation Energy for Portland Cement

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dc.contributor.author Poole, Jonathan L.
dc.contributor.author Riding, Kyle A.
dc.contributor.author Folliard, Kevin J.
dc.contributor.author Juenger, Maria C. G.
dc.contributor.author Schindler, Anton K.
dc.date.accessioned 2010-08-06T19:02:28Z
dc.date.available 2010-08-06T19:02:28Z
dc.date.issued 2010-08-06
dc.identifier.uri http://hdl.handle.net/2097/4495
dc.description.abstract The accurate prediction of thermal gradients in concrete calls for models that characterize the temperature sensitivity of the hydration of cementitious materials. The most common method used for this purpose is the Arrhenius equation, which requires the selection of an activation energy Ea to define the temperature sensitivity of the reaction. For cementitious materials, Ea is typically computed using either isothermal calorimetry or compressive strength data. There is disagreement in literature as to the proper method to determine Ea. The Ea of different cementitious pastes was determined from isothermal calorimeter results using three different computational methods. The results were used to develop a systematic computational method for characterizing Ea to account for the effect of temperature on the overall rate of hydration of cementitious materials. This work lays the groundwork for more extensive studies to determine the effect of a wide variety of variables on Ea. en_US
dc.relation.uri http://www.concrete.org/PUBS/JOURNALS/MJHOME.ASP en_US
dc.rights This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). en_US
dc.rights.uri https://rightsstatements.org/page/InC/1.0/
dc.subject Calorimeter en_US
dc.subject Hydration en_US
dc.subject Portland cement en_US
dc.title Methods for Calculating Activation Energy for Portland Cement en_US
dc.type Text en_US
dc.date.published 2007 en_US
dc.citation.epage 311 en_US
dc.citation.issue 1 en_US
dc.citation.jtitle ACI Materials Journal en_US
dc.citation.spage 303 en_US
dc.citation.volume 104 en_US
dc.contributor.authoreid riding en_US
dc.description.version Article (publisher version)


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This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). Except where otherwise noted, the use of this item is bound by the following: This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).

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