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Fracture toughness of geopolymeric concretes reinforced with basalt fibers
AbstractThe purpose of this work was to investigate the influence of the volumetric fraction of the fibers on the fracture toughness of geopolymeric cement concretes reinforced with basalt fibers. The values of fracture toughness, critical stress intensity factor and critical crack mouth opening displacement were measured on 18 notched beams tested by three-point bending. The a0/h (notch height/beam height) ratio was equal to 0.2 and the L0/h (distance between the supports/beam height) ratio was equal to 3. According to the experimental results, geopolymeric concretes have better fracture properties than conventional Portland cement. They are also less sensitive to the presence of cracks.
Fracture toughness of geopolymeric concretes reinforced with basalt fibers
AbstractThe purpose of this work was to investigate the influence of the volumetric fraction of the fibers on the fracture toughness of geopolymeric cement concretes reinforced with basalt fibers. The values of fracture toughness, critical stress intensity factor and critical crack mouth opening displacement were measured on 18 notched beams tested by three-point bending. The a0/h (notch height/beam height) ratio was equal to 0.2 and the L0/h (distance between the supports/beam height) ratio was equal to 3. According to the experimental results, geopolymeric concretes have better fracture properties than conventional Portland cement. They are also less sensitive to the presence of cracks.
Fracture toughness of geopolymeric concretes reinforced with basalt fibers
Dias, Dylmar Penteado (author) / Thaumaturgo, Clelio (author)
Cement and Concrete Composites ; 27 ; 49-54
2004-02-20
6 pages
Article (Journal)
Electronic Resource
English
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