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- W2338524074 abstract "The global demand of concrete for construction of infrastructures is continuously increasing in order to maintain the ongoing growth and to accommodate the needs of the increasing population. The production of cement is highly energy intensive and it emits a lot of CO2 into the air which adds to global warming. One of the efforts to produce more environment friendly concrete is to reduce the use of ordinary Portland cement (OPC). Geopolymer concrete (GPC) is a 'new' concrete that does not need cement for its production. This is usually based on fly ash as a source material. The behaviour of GPC has to be studied in detail to check its suitability in construction industry.In the present study, the influence of the volumetric fraction of steel fibers on the fracture behaviour of geopolymer concrete was investigated. Three-point bending test on notched prisms with a/W (notch depth/beam depth) ratio equal to 0.4 was used. The values of ultimate load, fracture toughness, fracture energy, ductility and critical crack mouth opening displacement were measured. A total of 24 specimens were prepared using M30 grade geopolymer concrete and conventional concrete (PCC) of same grade and the fibre content was varied from 0 to 0.75% with an increment of 0.25%. According to the experimental results, geopolymer concrete exhibited enhanced fracture properties compared to conventional concrete of the same grade." @default.
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- W2338524074 date "2013-01-01" @default.
- W2338524074 modified "2023-09-27" @default.
- W2338524074 title "Fracture Properties of Fibre Reinforced Geopolymer Concrete" @default.
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