Return to search

Porušování vybraných stavebních kompozitů v blízkosti rozhraní plniva a matrice / Fracture of selected building composites in the vicinity of aggregate-matrix-interface

The interface between aggregate grains and matrix in cementitious composites is their weakest element. The topic is particularly significant in the case of high performance and high strength concrete technology for which the eliminination or reduction of these weak links are necessary. The aim of this thesis is to determine the influence of the interface on the fracture behaviour of the cementitious composites. The fracture experiments were performed for this purpose and were complemented by the nanoindentation’s results and scanning electron microscopy results. Numerical model was created in ANSYS software on the basis of these data and the fracture toughness values of the interface were evaluated by means of the generalized fracture mechanics principles. Conclusion of the thesis is proof that the interface properties have a significant influence on the fracture behaviour of cementitious composites.

Identiferoai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:372021
Date January 2018
CreatorsVyhlídal, Michal
ContributorsMalíková, Lucie, Keršner, Zbyněk
PublisherVysoké učení technické v Brně. Fakulta stavební
Source SetsCzech ETDs
LanguageCzech
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/masterThesis
Rightsinfo:eu-repo/semantics/restrictedAccess

Page generated in 0.0013 seconds