Corrosion behavior of reinforcement in concrete with different compositions

Yodsudjai, Wanchai; Vanrak, Pichitnan; Suwanvitaya, Prasert; Jutasiriwong, Apisak

doi:10.1080/21650373.2020.1774440

Cited by 10 publications

(2 citation statements)

References 40 publications

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“…They noted that the mean ions of chloride and coefficient of chloride diffusion of FA-based GPC were less than traditional concrete, as shown in Figure 9. FA-based GPC offered an improved level of resistance against penetration of chlorides and corrosion compared to conventional concrete [77]. This is possibly the outcome of the packed matrix and improved microstructure of FA-based GPC.…”

Section: Effect Of Chlorides On Fa-based Gpcmentioning

confidence: 98%

Hydration, Microstructure, and Properties of Fly Ash–Based Geopolymer: A Review

Khawaji

2023

Materials Science-Poland

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Geopolymers have gained attention as a potential eco-friendly alternative to Portland cement, primarily due to their reduced carbon dioxide emissions and the opportunity to repurpose industrial waste materials. Fly ash (FA), a byproduct of coal combustion, has been favored as a raw material for geopolymer concrete owing to its widespread availability and high concentrations of alumina and silica. The development and application of fly ash–based geopolymer concrete can contribute significantly to production of sustainable construction materials. An in-depth analysis of fly ash–based geopolymer concrete has been conducted to explore its potential as a substitute for traditional concrete. This review encompasses the underlying reaction mechanism, strength, long-term durability, and microstructural characteristics of geopolymer concrete. The present review paper shows that adding the optimal quantity of fly ash improves the performance of fly ash–based geopolymer when exposed to extreme durability conditions, as well as improving strength properties. The microstructural analysis shows that when fly ash is added, the microstructure of the concrete matrix would be dense and packed. However, challenges remain in adopting fly ash–based geopolymer concrete for large-scale construction projects, as the existing literature presents inconsistencies in the reported strength, durability, and test results. Further research is necessary to consolidate knowledge on the behavior and mechanism of fly ash–based geopolymer concrete and to ultimately provide comprehensive data to support its widespread implementation in the construction industry.

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Section: Effect Of Chlorides On Fa-based Gpcmentioning

confidence: 98%

Hydration, Microstructure, and Properties of Fly Ash–Based Geopolymer: A Review

Khawaji

2023

Materials Science-Poland

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“…In construction industry usually used industrial by products as supplementary materials (SCMs) such as fly ash, blast furnace slag or silica fume, (Shaikh and Dobson, 2019), (Yodsudjai et al, 2020) (Joshaghani et al, 2018), (Wang et al, 2014); these additives can be utilized in high amounts (up to 65% wt.) replacing the cement content in concrete.…”

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confidence: 99%

Influence of Different Waste Materials on Resistance of Cement Mortars against Carbonation and Chloride Ingress

Chousidis

Batis

2021

sace

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This work is an extensive experimental study on the corrosion behavior of reinforced cementitious mortars containing industrial byproducts and waste materials. In particular, calcareous (C-class) fly ashes, iron mill scale and Electrolytic Manganese Dioxide (E.M.D.) waste were used as additives in mortars production. The abovementioned materials were used without any prior treatment or management and replaced the cement in concrete mixing by 10% wt. of cement weight. For the experimental set-up, reinforced mortars were prepared and exposed to coastal area for 12 months, while some of them were remained in a salt spray cabin for 60 days. The corrosion monitoring was performed by electrochemical and mass loss measurements, while chloride content, porosity, carbonation and mineralogy of mortars were also estimated. The results indicate, that there is a development in durability and chloride penetration resistance of composites comparing with the conventional mortars at late ages. At the same time, it was also observed that their chemical composition and fineness, control the diffusion of CO2 into the pore system and lead to increased carbonation of composite mortars. The challenge of this work is the production of eco-friendly composites with high chloride and carbon dioxide penetration resistance.

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Bayesian probabilistic model for reinforcement corrosion ratio of reinforcement in concrete prediction based on modified half-cell potential

Guo,

Yao

2023

J Civil Struct Health Monit

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Corrosion behavior of reinforcement in concrete with different compositions

Cited by 10 publications

References 40 publications

Hydration, Microstructure, and Properties of Fly Ash–Based Geopolymer: A Review

Hydration, Microstructure, and Properties of Fly Ash–Based Geopolymer: A Review

Influence of Different Waste Materials on Resistance of Cement Mortars against Carbonation and Chloride Ingress

Bayesian probabilistic model for reinforcement corrosion ratio of reinforcement in concrete prediction based on modified half-cell potential

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