Low-carbon footprint approach to produce recycled compacted concrete

Mostazid, Md. Ibrahim; Sakai, Yuya

doi:10.1016/j.ceramint.2023.04.052

Cited by 5 publications

(1 citation statement)

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“…In H2SO4 solution, the mass loss of GPC prepared by heat activation of FA and alkaline liquid at 60 °C with continuous stirring for 45 minutes had a lower mass loss than GPC heat-cured at 60 °C for 48 h. While Alireza et al (2021) demonstrated better acid resistance of FA-GPC when NaOH was added to the fresh mix containing KOH and Na2SiO3, after 3 minutes of mixing [52]. Kumaravel and Girija (2013) investigated the effect of NaOH concentrations (8,10,12, and 14 M) on H2SO4 acid resistance of FA-GPC [53]. Optimized acid resistance was observed at 12 M concentration.…”

Section: Geopolymer Concrete (Gpc)mentioning

confidence: 99%

Acid Resistance of Geopolymer Concrete – Literature Review, Knowledge Gaps, and Future Development

Mostazid

2024

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Geopolymer concrete, a sustainable and durable alternative to conventional Portland cement-based concrete, has gained significant attention in recent years. Its reduced carbon footprint and superior mechanical properties make it a viable option for various construction applications. However, acid resistance remains a critical area of concern, particularly in environments where exposure to acidic substances is prevalent. This review paper delves into the acid resistance of geopolymer concrete, providing a comprehensive overview of the latest research findings, methodologies, and advancements in the field. The paper commences by exploring the fundamental principles of geopolymer chemistry. Subsequently, the paper meticulously reviews the experimental results of studies investigating the acid resistance of geopolymer concrete. It focuses on the effects of various acids commonly encountered in industrial and environmental settings, such as sulfuric acid, hydrochloric acid, and organic acids. The paper summarizes the key findings from the reviewed literature, highlighting the strengths and limitations of geopolymer concrete in terms of acid resistance. It identifies the factors that contribute to enhanced acid resistance and suggests potential strategies for further improvement. Furthermore, the paper outlines future research directions, emphasizing the need for long-term studies, the development of standardized testing methods, and the exploration of novel geopolymer formulations with superior acid resistance.

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Section: Geopolymer Concrete (Gpc)mentioning

confidence: 99%