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Application of Neutron Radiography to study moisture movement in cracked and uncracked concrete



Title: Application of Neutron Radiography to study moisture movement in cracked and uncracked concrete
Author(s): F. H. Wittmann, P. Zhang, and T. J. Zhao
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: 515 - 522
Total Pages: 8
Nb references: 13
Language: English


Abstract: Moisture movement in concrete is at the origin of a number of deteriorating processes such as shrinkage cracking, frost action, and chloride penetration by convection. Neutron radiography is a powerful and advanced technique to study moisture movement in porous materials. In this contribution, it will be shown that the time-dependent penetration process of water into concrete can be followed quantitatively with high sensitivity and spatial resolution; and the time-dependent moisture distributions in porous materials during water ingress can be precisely followed. The ingress of water into the cracked zone of concrete and into the interface between steel reinforcement and concrete is of particular interest. This method will help us to better understand moisture movement and to provide us with experimental results, which may serve as a basis for numerical simulation.


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


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