Physical properties and acid resistance of geopolymer mortar prepared from synthetic water containing hydrochloric acid

JaiSai, Tenepalli

doi:10.1016/j.matpr.2021.11.220

Cited by 2 publications

(1 citation statement)

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“…Geopolymers are potential alternative binders because of their total environmental friendliness, outstanding mechanical properties and acceptable processing costs [ 4 ]. The mechanical properties of geopolymer concrete are comparable to traditional concrete, while in severe environments, such as acid [ 5 ], sulphate attack [ 6 ], chloride [ 7 ] and elevated temperature [ 8 ], geopolymer binder provides superior residual strength. Although the general cost for producing geopolymer binder is similar to that of Portland cement [ 9 ], geopolymers present almost 25% less carbon emission [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Bond Performance of Steel Bar and Fly Ash-Based Geopolymer Concrete in Beam End Tests

Cui

Bao

et al. 2022

Polymers

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This paper presents a comprehensive investigation of the bond characteristics of steel bar reinforced geopolymer concrete (GPC). The ASTM A944 beam end tests were conducted on GPC beams reinforced with plain or ribbed bars. The bond–slip curves and the bond strength of GPC beams were obtained. The relationship between the bond stress and relative slip in plain and ribbed bar reinforced GPC has been represented by empirical formulae. The bond testing results were compared with those of corresponding ordinary Portland cement concrete (OPC) using statistical hypothesis tests. The results of hypothesis testing showed that GPC was significantly superior to OPC in terms of bond capability with plain bars and bond stiffness with ribbed bars. The statistical analysis indicated that the bond–slip relations derived for OPC are inapplicable to GPC; thus, new bond–slip relations are suggested to estimate the development of bond stress and relative slip between GPC and steel bars.

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