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Static vs. dynamic Young´s modulus as indicator for ASR degradation



Title: Static vs. dynamic Young´s modulus as indicator for ASR degradation
Author(s): H.W. Reinhardt, O. Mielich
Paper category : conference
Book title: International RILEM Conference on Advances in Construction Materials Through Science and Engineering
Editor(s): Christopher Leung and K.T. WAN
ISBN: 978-2-35158-116-2
e-ISBN: 978-2-35158-117-9
Publisher: RILEM Publications SARL
Publication year: 2011
Pages: 411 - 418
Total Pages: 8
Nb references: 18
Language: English


Abstract: A series of concretes with two types of slowly reacting alkali sensitive aggregates and two types of cements was exposed in a fog chamber during 560 days. One cement was a Portland cement CEM I 32.5 R with a total alkali content of 1.24 by mass Na2Oequ.. The second cement was a “Portland pozzolana cement CEM II/B-Q 32.5 R (V)” with a total alkali content of 3.5 by mass Na2Oequ. made by replacement of 30 by mass of Portland cement CEM I 32.5 R by phonolite as supplementary cementious material. Compressive strength, static and dynamic modulus of elasticity were measured at fixed intervals. With determination of static Young`s modulus, predictions can be made about the damage degree and deleterious progress respectively. Such predictions are not possible with the determination of the dynamic Young´s modulus following the resonance frequency method.


Online publication: 2011-10-31
Publication type : full_text
Public price (Euros): 0.00