ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Cracking due to the restrained shrinkage stress has been frequently observed at early age inconcrete construction. The early-age shrinkage cracking reduce the structural performance of concreteand may accelerate deterioration to shorten the service life. Two kinds of strategies andinstrumentation have been developed to assess early age cracking: ring tests with a restraining core,longitudinal tests where the restraint is at the end grips of the specimen. Early-age concrete exhibitscreep or relaxation behavior that is a typical response of viscoelastic materials. Viscoelasticconstitutive model should be used to analyze stress development of the restrained concrete. Theassessment of the risk of cracking can be based on the model with input of the estimated concretedeformation
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.33-37.435.pdf
