Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hybrid polyethylene/polypropylene blended fiber-reinforced cement composite
This article reports the results of a study related to the reinforcement of mortar-based composites with newly developed polyethylene/polypropylene blended fibers. The study showed the hybrid fibers to have a mechanical/reinforcing effect in the cement-based matrix. Mechanical strengths improvements, as high as 40%, were obtained for composites with a fiber length of 24 mm and a fiber volume fraction of 2.9%. The mechanical enhancement was associated with a strong mechanical interlocking between the fibers/cement matrix interfaces promoted by the fibers' surface ridges and fibrillation ability. Macro/microstructure and morphological observations showed a post-cracking ductility improvement of composites by the hybrid (bridge effect) fibers, also evidenced a multi-cracking mechanism.
Hybrid polyethylene/polypropylene blended fiber-reinforced cement composite
This article reports the results of a study related to the reinforcement of mortar-based composites with newly developed polyethylene/polypropylene blended fibers. The study showed the hybrid fibers to have a mechanical/reinforcing effect in the cement-based matrix. Mechanical strengths improvements, as high as 40%, were obtained for composites with a fiber length of 24 mm and a fiber volume fraction of 2.9%. The mechanical enhancement was associated with a strong mechanical interlocking between the fibers/cement matrix interfaces promoted by the fibers' surface ridges and fibrillation ability. Macro/microstructure and morphological observations showed a post-cracking ductility improvement of composites by the hybrid (bridge effect) fibers, also evidenced a multi-cracking mechanism.
Hybrid polyethylene/polypropylene blended fiber-reinforced cement composite
Silva, E.R. (Autor:in) / Coelho, J.F.J. (Autor:in) / Bordado, J.C. (Autor:in)
Journal of Composite Materials ; 47 ; 3131-3141
2013
11 Seiten
Aufsatz (Zeitschrift)
Englisch
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