%0 Journal Article
%T Mechanical tensile behaviour of cement paste/aggregate bond exposed to leaching
%+ Technical University of Civil Engineering of Bucharest = Université Technique de Génie Civil de Bucarest ( UTCB)
%+ Laboratoire d'Innovation Numérique pour les Entreprises et les Apprentissages au service de la Compétitivité des Territoires (LINEACT)
%+ Structures Innovantes, Géomatériaux, ECOconstruction (SIGECO)
%+ Laboratoire de micromécanique et intégrité des structures (MIST)
%+ ThermoMécanique des Matériaux (ThM2)
%+ Laboratoire Charles Coulomb (L2C)
%A Gîrboveanu, Andrei
%A Jebli, Mouad
%A Jamin, Frédéric
%A Huon, Vincent
%A Bonnet, Laurent
%A Georgescu, Dan
%A El Youssoufi, Moulay Saïd
%< avec comité de lecture
%@ 0950-0618
%J Construction and Building Materials
%I Elsevier
%V 369
%P 130592
%8 2023-03
%D 2023
%R 10.1016/j.conbuildmat.2023.130592
%K Cement Paste
%K Concrete
%K ITZ
%K Leaching
%K Microstructure
%K Tensile Tests
%Z Chemical Sciences/Material chemistry
%Z Chemical Sciences/Material chemistryJournal articles
%X An experimental program is oriented to the mechanical behaviour of the Interfacial Transition Zone (ITZ) exposed to leaching, for a single mix. Leaching kinetics of the degraded depth, measured through grey level on cross sections, reveals a maximum gap of 10 % between ITZ and bulk cement paste. ITZ, with a main thickness of 15 µm suffers a significant decalcification, which is reflected on the mechanical properties of the bond. Grey level, Calcium/Silicon (Ca/Si) molar ratio and Young’s modulus in the degraded zone present similar evolution. Effect of ITZ causing cracking and then debonding is noticed, through chemical analysis, image observation and mechanical tests.
%G English
%L hal-04071077
%U https://hal.science/hal-04071077
%~ IRSN
%~ CNRS
%~ LMGC
%~ L2C
%~ MIST
%~ UNIV-MONTPELLIER
%~ UM-2015-2021
%~ UM-EPE
%~ HESAM
%~ HESAM-CESI
%~ LINEACT-CESI
%~ CESI