000 01918aab a2200193 4500
008 230920b2023 |||br|p| |||| 00| 0 eng d
022 _a0889-325x
100 _a Umer Sajjad, M. Neaz Sheikh, and Muhammad N. S. Hadi
_9878262
245 _aUse of Graphene in Ambient-Cured Slag-Fly Ash-Based Geopolymer Concrete
300 _a45-56p.
520 _aThe durability performance of geopolymer concrete against severe environmental conditions is important for implementing geopolymer binders as alternatives to ordinary portland cement (OPC). In this experimental investigation, the impact of adding graphene on the durability characteristics of geopolymer concrete was examined. Graphene was added at 0.5% by weight of aluminosilicate precursors in geopolymer concrete. Permeability, salt ponding, capillary sorptivity, and immersion in chemical agents were performed to assess the durability characteristics of geopolymer concrete without and with graphene, which were also compared with the durability characteristics of OPC concrete without and with graphene. It was found that the addition of graphene in geopolymer concrete reduced the permeable voids by 12% and water absorption by 9%, and improved the resistance against chloride penetration and sulfuric acid exposure. The compressive strength of geopolymer concrete increased by 20% with the addition of graphene. Also, an approximately 70% reduction in the initial and final rate of water absorption was observed in geopolymer concrete with the addition of graphene.
650 _aAbsorption
_9381040
650 _aChemical Resistance
_9878263
650 _aChloride
650 _aGeopolymer Concrete
_9173442
773 0 _x0889325X
_tACI Materials Journal
_dDetroit, U.S.A : American Concrete Institute
856 _uhttps://www.concrete.org/publications/internationalconcreteabstractsportal.aspx?m=details&id=51738683
942 _2ddc
_n0
_cART
_o188
_pNAZIA Sami
999 _c814162
_d814162