000004636 001__ 4636
000004636 005__ 20141119144540.0
000004636 04107 $$aeng
000004636 046__ $$k2002-06-02
000004636 100__ $$aXu, Yingwu
000004636 24500 $$aEXPLORATORY EVALUATION OF MODE-I FRACTURE TOUGHNESS OF CONCRETE-COMPOSITE BONDED INTERFACES

000004636 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004636 260__ $$bColumbia University in the City of New York
000004636 506__ $$arestricted
000004636 520__ $$2eng$$aIn this paper, a conventional test method based on a three-point bending beam (3PBB) specimen, used commonly for determining Mode-I fracture properties of concrete and rock, is adapted to characterize Mode-I fracture of concrete-composite bonded interfaces. Two types of fiber fabrics: E-glass and Carbon are used, and a common epoxy resin is applied to bond the concrete-concrete and concrete-composite interfaces. Mode-I fracture tests of the 3PBB specimens for concrete-concrete, concrete-E-glass/epoxy composite, and concrete-Carbon/epoxy composite bonded interfaces are performed to determine the applied loads and load point displacements, from which critical strain energy release rates are reduced. The effect of loading rates on fracture toughness (in displacement control rates of 0.002 mm/sec, 0.01 mm/sec, and 0.05 mm/sec) is studied and discussed. It is expected that the proposed experimental method can be used to obtain fracture toughness data useful for delamination studies under various environmental exposures and service loading. 

000004636 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004636 653__ $$aMode-I fracture, concrete, composites, bonded interfaces, fracture toughness, external reinforcement, bi-material interfaces

000004636 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004636 720__ $$aXu, Yingwu$$iQiao, Pizhong$$iDavalos, Julio F.
000004636 8560_ $$ffischerc@itam.cas.cz
000004636 8564_ $$s280960$$uhttps://invenio.itam.cas.cz/record/4636/files/095.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004636 962__ $$r4594
000004636 980__ $$aPAPER