Mechanical and durability characteristics of GGBS-Dolomite geopolymer concrete using recycled coarse aggregates

Manhanpally, Najeeb; Nagarajan, Praveen; Saha, Suman Kumar; Raja, I. Yunus

doi:10.1016/j.matpr.2023.04.217

Cited by 4 publications

(3 citation statements)

References 12 publications

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“…The visual appearances of the specimens are shown in Figure 12a,b. Manhanpally et al [99] demonstrated that the durability performance of GPC is unaffected by the inclusion of recycled particles. Nnaemeka and Singh [126] indicated how kaolin affected the durability of fly ash-based GPC when exposed to a solution In conclusion, it has been shown that geopolymer concrete exhibits better chemical stability than OPC concrete because the geopolymerized bonding of the former is more resilient to deterioration caused by sulfuric acid than the Portland cementation bonding.…”

Section: Sulfate Corrosion Resistancementioning

confidence: 99%

Section: Sulfate Corrosion Resistancementioning

confidence: 99%

“…This observation range of emissions reduction is attributed to the intricate nature of emissions calculations, which vary based on numerous factors, such as local conditions, the specific design and transportation mix, and so on [73,[96][97][98]. As an illustration, the geopolymer binder generates CO 2 emissions ranging from 0.184 to 0.218 tons due to the combustion of carbon fuel, in contrast to 1 ton of CO 2 emitted by OPC [99]. The advantages of GPC materials are the sustainability of the building, a longer useful life, reduced use of virgin materials, recycling of industrial waste, significant life-cycle cost savings, and low carbon emissions [100].…”

Section: Introductionmentioning

confidence: 99%

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Review of Recent Developments Regarding the Durability Performance of Eco-Friendly Geopolymer Concrete

Alahmari,

Abdalla,

Rihan

2023

Buildings

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The 21st century has witnessed a substantial increase in the demand for construction materials, mainly influenced by the growing population. This increase in demand has resulted in higher prices for these materials and has also placed considerable burdens on environmental resources, prompting the search for eco-friendly and economically viable alternatives such as geopolymer materials to replace traditional materials like cement. The benefits of geopolymer materials as substitutes for cement in concrete extend beyond their exceptional durability. Initially, geopolymer was introduced to address the environmental impact arising from carbon dioxide emissions and the substantial consumption of fossil fuels through the production of cement. The current review investigates recent advances regarding the durability characteristics of geopolymer materials. This includes aspects such as water absorption, temperature resistance, sulfuric acid resistance, sulfate resistance, chloride ion penetration, and freeze–thaw resistance, among others. The results of this review highlight geopolymer concrete’s enhanced durability over traditional cement-based concrete. Furthermore, this review offers recommendations and outlines potential research avenues for further exploration of geopolymer concrete.

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Section: Sulfate Corrosion Resistancementioning

confidence: 99%

Section: Sulfate Corrosion Resistancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Review of Recent Developments Regarding the Durability Performance of Eco-Friendly Geopolymer Concrete

Alahmari,

Abdalla,

Rihan

2023

Buildings

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State of the art review on the production and bond behaviour of reinforced geopolymer concrete

Cui,

Ai,

Tekle

et al. 2023

Low-carbon Mater. Green Constr.

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Geopolymer is produced through the polymerization of active aluminosilicate material with an alkaline activator, leading to the formation of a green, inorganic polymer binder. Geopolymer concrete (GPC) has become a promising low-carbon alternative to traditional Portland cement-based concrete (OPC). GPC-bonded reinforcing bars offer a promising alternative for concrete structures, boasting excellent geopolymer binder/reinforcement bonding and superior corrosion and high-temperature resistance compared to Portland cement. However, due to differences in the production process of GPC, there are distinct engineering property variations, including bonding characteristics. This literature review provides an examination of the manufacturing procedures of GPC, encompassing source materials, mix design, curing regimes, and other factors directly influencing concrete properties. Additionally, it delves into the bond mechanism, bond tests, and corresponding results that represent the bond characteristics. The main conclusions are that GPC generally has superior mechanical properties and bond performance compared to ordinary Portland cement concrete (OPC). However, proper standardization is needed for its production and performance tests to limit the contradictory results in the lab and on site.

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Modelling the compressive strength of geopolymer recycled aggregate concrete using ensemble machine learning

Golafshani,

Khodadadi,

Ngo

et al. 2024

Advances in Engineering Software

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Mechanical and durability characteristics of GGBS-Dolomite geopolymer concrete using recycled coarse aggregates

Cited by 4 publications

References 12 publications

Review of Recent Developments Regarding the Durability Performance of Eco-Friendly Geopolymer Concrete

Review of Recent Developments Regarding the Durability Performance of Eco-Friendly Geopolymer Concrete

State of the art review on the production and bond behaviour of reinforced geopolymer concrete

Modelling the compressive strength of geopolymer recycled aggregate concrete using ensemble machine learning

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