Mechanical properties and permeability of red mud-blast furnace slag-based geopolymer concrete

Liang, Xiangzhou; Ji, Yongsheng

doi:10.1007/s42452-020-03985-4

Cited by 42 publications

(11 citation statements)

References 23 publications

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“…The slump cone test was done using freshly mixed GPC per IS 1199: 1959. The slump value was calculated using the height gap between the top of the mold and the top center of the fallen concrete sample [27]. A graded tapping rod with a diameter of 16 mm was also used to obtain the slump value.…”

Section: 2strength Properties Procedures 621rm-based Ternary Blended ...mentioning

confidence: 99%

Durability Study on the Red mud-based Ternary Blended Geopolymer Concrete

Chakrapani

Ramesh

Potharaju

2022

Technium EcoGeoMarine

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Concrete made with geopolymer technology is thought to be both pro-ecological and minimal cost-effective. Geopolymer concrete manufacture aids in the conversion of industrial by-product materials into reusable products. Geopolymer concrete outperforms OPC concrete in terms of strength. The ternary blended high-molarities (12M) geopolymer concrete used in this experiment was made of red mud (RM), fly ash (FA), and Ground granulated blast furnace slag (GGBFS). The current study intended to establish the best ratio of RM - FA - GGBFS -based ternary geopolymer concrete. The compressive strength, split tensile strength, and flexural strength tests were performed to determine the strength properties and water absorption, permeability, and sorptivity tests determined the durability characteristics. The results showes that the proportions of RM-based ternary GPC with RM: FA:GGBFS in 45:35:20 ratio resulted in a significant increase in the synthesis. This resulting in improved mechanical and microstructural properties than the other proportions. Higher results were also seen at the aforementioned ratio in the chemical analysis performed on the ternary-based geopolymer paste to determine the maximum pH value. The study's findings are encouraging sustainable and cost-effective routes for dealing with the industrial by-products that are presently produced in multiple regions.

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Section: 2strength Properties Procedures 621rm-based Ternary Blended ...mentioning

confidence: 99%

Durability Study on the Red mud-based Ternary Blended Geopolymer Concrete

Chakrapani

Ramesh

Potharaju

2022

Technium EcoGeoMarine

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“…RM and BFS are industrial solid wastes formed IOP Publishing doi:10.1088/1755-1315/1335/1/012040 2 from the production of aluminum and iron resources respectively [4,5], and have good physical and mechanical properties and heavy metal pollution adsorption properties after the geopolymer treatment [6,7]. The use of industrial solid waste to prepare contaminated soil remediation materials can not only reduce solid waste storage, but also have the potential to efficiently repair heavy metal contaminated sites, which has gradually attracted the attention of many scholars [8][9][10]. However, the research on S/S materials of red mud combined with blast furnace slag is relatively rare, and its mechanical properties and heavy metal adsorption capacity are worthy of further study.…”

Section: Introductionmentioning

confidence: 99%

Optimization of solidification/stabilization materials based on solid waste geopolymer

Fu,

Chen,

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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With the development of mining economy and human society, heavy metal pollution incidents have gradually increased while a large amount of mine solid waste has been produced.Red mud (RM) and blast furnace slag (BFS) are common solid wastes in mines with excellent heavy metal adsorption properties. Optimization of geopolymer solidification/stabilization(S/S) materials based on these waste materials is a good way to reduce solid waste and cure heavy metal contaminated soil, and has outstanding environmental protection significance.In this study, RM and BFS were used as geopolymer raw materials, and sodium hydroxide was used as alkali activator to prepare lead nitrate contaminated soil with Pb content of 0.5%. Laboratory tests were conducted to explore the effects of alkali-solid ratio, BFS content on the mechanical strength, toxic leaching characteristics and pH of geopolymer S/S lead contaminated soil. The optimal ratio of geopolymer is obtained. The results show that the S/S soil cured with RM and BFS geopolymer has good mechanical properties and heavy metal adsorption properties, and it has certain scientific research value and utilization prospect for the remediation of Pb contaminated soil.

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“…Much research has been conducted in recent years on a red-mud-based geopolymer. GPC is a clinker-free and low-energy carbon binder [13][14][15]. GPC is prepared through the activation of industrial waste such as fly ash (FA), metakaolin (MK), red mud (RM), and waste glass, as aluminosilicate sources react with alkaline solutions such as alkali activator agents [16].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Alkaline Activator on the Strength Properties of Geopolymer Concrete

et al. 2022

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This study investigates the effects of red mud on the performance of geopolymer concrete in regard to fresh and mechanical properties. Red mud was used as a binder, and GGBS replaced the binder. Different proportions of red mud ranging from 0 to 30% with an interval of 2% and activator agents such as KOH and K2SiO3 for various alkaline-to-binder ratios such as 0.30, 0.40, and 0.50 were used; their effect on the fresh and mechanical properties of geopolymer concrete were the focusing parameter on the current study. Fresh properties such as setting time, slump, compaction factor, and vee-bee consistometer test, and mechanical properties such as compressive strength, split tensile strength, flexural strength, modulus of elasticity, and impact energy were studied. ANOVA and radar plot analysis were studied for various alkaline to binder (A/B) compressive strength results tested for 7 to 90 days. The increase of red mud quantity caused the decline of workability, but there was continuous enhancement of mechanical properties of GPC up to a specific limit. An alkaline-to-binder ratio of 0.4 shows excellent results compared with other ratios at ambient conditions for strength properties. ANOVA and radar plot reveal that A/B of 0.40 for 90 days shows excellent results compared with other ratios, and CS values vary in a linear manner.

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Mechanical properties and permeability of red mud-blast furnace slag-based geopolymer concrete

Cited by 42 publications

References 23 publications

Durability Study on the Red mud-based Ternary Blended Geopolymer Concrete

Durability Study on the Red mud-based Ternary Blended Geopolymer Concrete

Optimization of solidification/stabilization materials based on solid waste geopolymer

Optimization of Alkaline Activator on the Strength Properties of Geopolymer Concrete

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