Effect of sand content on engineering properties of fly ash-slag based strain hardening geopolymer composites
نویسندگان
چکیده
Strain hardening geopolymer composite (SHGC) is a tailored group of sustainable high-performance fibre reinforced composites with strain behaviour and ultra-high ductility. This paper experimentally investigates the effect fine silica sand content (0–40% by weight binder) on engineering properties fly ash-slag based SHGC cured at ambient temperature, including workability, setting time, drying shrinkage, compressive strength, flexural strength as well deflection that particularly emphasised. The results indicate all specimens exhibit characteristics along large multiple microcracks distributed over tensile side specimens. widths are within 300 μm mostly smaller than 45 μm. flowability, shrinkage reduce increase early ages up to 28 d. However, d, incorporation 20 wt% increases toughness SHGC, but further 40 in decrease toughness.
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ژورنال
عنوان ژورنال: Journal of building engineering
سال: 2021
ISSN: ['2352-7102']
DOI: https://doi.org/10.1016/j.jobe.2020.101951