Strength, chloride resistance, and water permeability of high volume sugarcane bagasse ash high strength concrete incorporating limestone powder

•Binary and ternary binder HS-C containing HVSCBA and LS at 60–80 wt% at 28 days higher than 55 MPa.•Binary and ternary binder HS-C was chloride ion penetrability resistance better than CT concrete.•The k-values of binary and ternary binder HS-C decreased with increasing compressive strength.•Binary...

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Veröffentlicht in:Construction & building materials 2021-12, Vol.311, p.125326, Article 125326
Hauptverfasser: Klathae, Tawich, Tran, Trinh Nhat Ho, Men, Sambath, Jaturapitakkul, Chai, Tangchirapat, Weerachart
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Sprache:eng
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Zusammenfassung:•Binary and ternary binder HS-C containing HVSCBA and LS at 60–80 wt% at 28 days higher than 55 MPa.•Binary and ternary binder HS-C was chloride ion penetrability resistance better than CT concrete.•The k-values of binary and ternary binder HS-C decreased with increasing compressive strength.•Binary and ternary binder HS-C can significantly reduce CO2e of 42–57% and was cost lower than CT concrete 13–25%. Although sugarcane bagasse ash (SCBA) with suitable particle size is formally approved as a good pozzolanic material for better durability and mechanical properties of concrete, most previous studies have found that the amount of SCBA is still low level for cement replacement in concrete. In this research, high strength concrete (HS-C) containing high volume sugarcane bagasse ash (HVSCBA) was investigated. Sugarcane bagasse ash (SCBA) was ground to have high fineness and used as a cement replacement at rates of 60, 70, and 80 wt% of binder for the binary blended binder in concrete. Also, SCBA and limestone powder (LS) were used as cement replacement at amounts up to 80 wt% of binder for the ternary blended binder in concrete. Testing of the binary and ternary blended binders for HS-C comprised of compressive strength, chloride resistance, and water permeability. The results showed that the compressive strength at 28 days of binary and ternary binders HS-C could develop to meet the requirement of 55 MPa. Also, the chloride ion penetrability of the binary and ternary binder HS-C sharply reduced to
ISSN:0950-0618
1879-0526
DOI:10.1016/j.conbuildmat.2021.125326