Early age concrete thermal stress measurement and modeling

Show simple item record

dc.contributor.advisor Folliard , Kevin J . en_US
dc.contributor.advisor Juenger , Maria C . G . en_US
dc.identifier.oclc 174149592 en_US
dc.creator Riding , Kyle Austin , 1978 - en_US
dc.date.accessioned 2008 -08 -28T23 :38 :33Z
dc.date.accessioned 2014 -02 -19T22 :33 :15Z
dc.date.available 2008 -08 -28T23 :38 :33Z
dc.date.available 2014 -02 -19T22 :33 :15Z
dc.date.created 2007 en_US
dc.date.issued 2008 -08 -28T23 :38 :33Z
dc.identifier.uri http : / /hdl .handle .net /2152 /3281
dc.description.abstract A large amount of heat can be liberated during cement hydration , causing very large temperature increases in mass concrete members . The non -uniform temperature field produced by the cement during curing can cause very high internal stresses that may crack the concrete . Concrete thermal cracking in very large structures is a well -known phenomenon and was studied extensively during the height of dam construction in the United States . In recent years concrete bridge member sizes have increased for structural and aesthetic reasons . Recent problems in San Antonio and Houston , Texas with thermal cracking and very high internal temperatures in mass concrete bridge members has renewed interest in studying early -age thermal cracking and its mechanisms . In order to predict the early -age thermal cracking risk of a concrete member , the temperature history , autogenous shrinkage , modulus development , tensile strength development , coefficient of thermal expansion development , creep behavior , and external restraint conditions must be known . A testing procedure has been developed to measure concrete heat of hydration , mechanical property development , and free shrinkage response at different curing temperatures . The concrete free shrinkage includes thermal and autogenous shrinkage components and is measured using a newly developed free shrinkage testing apparatus . The early age concrete creep is calculated from rigid cracking frame tests performed at different varying temperatures . Trends in early age creep behavior for different concrete mixtures common in mass concrete have been found and are used to develop a statistical model relating concrete mixture proportions and constituent material properties for use in mass concrete thermal stress modeling . The results from the test methods described are used in a new concrete early -age cracking risk and durability software package called ConcreteWorks . en_US
dc.format.medium electronic en_US
dc.language.iso eng en_US
dc.rights Copyright © is held by the author . Presentation of this material on the Libraries' web site by University Libraries , The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works . en_US
dc.subject.lcsh Thermal stresses en_US
dc.subject.lcsh Concrete - -Thermal properties en_US
dc.title Early age concrete thermal stress measurement and modeling en_US
dc.description.department Civil , Architectural , and Environmental Engineering en_US
dc.identifier.recnum b68896566 en_US
dc.type.genre Thesis en_US
dc.type.material text en_US
thesis.degree.name Doctor of Philosophy en_US
thesis.degree.level Doctoral en_US
thesis.degree.discipline Civil Engineering en_US
thesis.degree.grantor The University of Texas at Austin en_US
thesis.degree.department Civil , Architectural , and Environmental Engineering en_US


Early age concrete thermal stress measurement and modeling. Doctoral dissertation, The University of Texas at Austin. Available electronically from http : / /hdl .handle .net /2152 /3281 .

Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search DSpace

Advanced Search