Study on the splitting characteristics of basalt fiber reinforced geopolymer concrete
In this study,the effects of basalt fiber content on the splitting tensile properties of geopolymer concrete were investigated based on Digital Image Correlation(DIC)technology.Firstly,the splitting tensile tests of basalt fiber geopolymer concrete were carried out and the effects of basalt fiber content on the splitting tensile properties and the splitting failure mode of geopolymer concrete were studied based on DIC technology.Finally,the basalt fiber content of geopolymer concrete with the best splitting properties was proposed.The results showed that the geopolymer concrete with 1.00％basalt fiber content has the best splitting tensile properties.The splitting tensile strength,the ultimate vertical deformation,the maximum strain and the maximum crack width of geopolymer concrete are increased by 41.4％,75.0％,55.8％and 65.1％,respectively,compared with those without basalt fiber.
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