The Influence of Salt Water on Chloride Penetration in Geopolymer Concrete

Halim, Like Novia; Ekaputri, Januarti Jaya

doi:10.1051/matecconf/20179701002

Cited by 14 publications

(3 citation statements)

References 13 publications

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“…Therefore, it has a positive effect on the durability of GPC. Halim and Ekaputri [101] examined the effect of salt water on the performance of GPC made of sodium silicate and 8 molar sodium hydroxides as the alkali solution and fly ash as binder material. They immersed some samples in 3.5% concentration of salt water, while other samples were cured in normal water, as a control samples.…”

Section: Chloride Ion Penetrationmentioning

confidence: 99%

Factors affecting durability properties of GPC: A review

Ezuldin,

Raoof,

Alattar

et al. 2024

Res. Eng. Struct. Mat.

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The imperative to find sustainable alternatives to conventional cement, given its energy-intensive production and significant environmental impact, has driven research into alternative binder materials for civil infrastructure. This paper explores Geopolymer concrete (GPC), a polymer-based binder technology, as a promising solution to reduce the environmental footprint associated with traditional cement production. The study meticulously examines various aspects of GPC, focusing on its impact on crucial durability properties for infrastructure applications. This includes an in-depth analysis of GPC properties, elucidating characteristics influencing performance. In addition to fundamental properties, the paper critically evaluates the resistance of geopolymer pastes and concrete to a spectrum of extreme conditions. The discussion spans testing methodologies for both heat- and ambient-cured geopolymers, providing insights into their performance and durability across diverse environmental challenges. This comprehensive review aims to enhance the understanding of GPC technology, offering valuable insights for researchers, engineers, and industry professionals committed to sustainable and resilient infrastructure solutions.

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Section: Chloride Ion Penetrationmentioning

confidence: 99%

Factors affecting durability properties of GPC: A review

Ezuldin,

Raoof,

Alattar

et al. 2024

Res. Eng. Struct. Mat.

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“…Persyaratan untuk tebal selimut beton yang kontak langsung dengan udara atau tanah adalah 40-50 mm. [15] Penelitian ini juga bertujuan untuk menginvestigasi pengaruh variasi ketebalan lapisan mortar geopolimer terhadap kuat tekan beton normal yang direndam di lingkungan laut. Hasil penelitian ini diharapkan dapat memberikan wawasan baru dalam penggunaan mortar geopolimer sebagai material proteksi yang efisien dan tahan lama pada konstruksi struktur yang terpapar di lingkungan air laut.…”

Section: Pendahuluanunclassified

Pengaruh Rasio L/D Antara Lapisan Mortar Geopolimer Berbahan Dasar Fly Ash Terhadap Kuat Tekan Beton Dengan Seawater Curing

Nastiti

2023

quateknika

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ABSTRAK The performance and durability of concrete in construction is essential to maintain the sustainability and protection of the material. Particularly in construction in marine environments, the attack of aggressive chemical compounds can affect concrete and accelerate deterioration. This research aims to improve the performance and durability of concrete in construction in marine environments by using additional protection methods such as Surface Applied Protection. One of the materials used is geopolymer mortar that uses fly ash as a base material. This study shows that geopolymer mortar contributes positively to the compressive strength and durability of concrete. The thickness of the geopolymer mortar layer affected the mechanical properties of the concrete, and 4 cm thick gave the highest compressive strength results. The addition of geopolymer mortar needs to be adjusted to the compressive strength of the concrete and pay attention to the layer thickness for optimal results. Kata kunci: repair material, marine environment, L/D ratio, geopolymer mortar, compressive strength

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“…Past studies have confirmed that steam curing at a temperature range of 60 o C-80 o C contributes to faster strength development at early age [9] and promotes the reaction of geopolymerization [10,11]. On the other hand, some studies have suggested that moist curing is more recommended than wet curing [12]. Leaching of alkaline and some compound of alumina-silicates lead to the formation of more pores on the concrete surface.…”

Section: Introductionmentioning

confidence: 99%

The effect of steam curing on chloride penetration in geopolymer concrete

Ekaputri

Mutiara

Nurminarsih³

et al. 2017

MATEC Web Conf.

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Abstract. In this paper, we present the result of our study on the effect of steam curing to chloride ion penetration in geopolymer concrete. Class F fly ash was activated using sodium hydroxide (NaOH) and sodium silicate (Na2SiO3). The concrete specimens were then steam-cured at 40ºC, 60ºC, 80ºC and room temperature at 24 hours. The treatment was followed by wet curing for 28 days, and then followed by immersion of all specimens in salt water for the durations of 30, 60, and 90 days. Cylindrical specimens were then prepared for compressive strength, chloride ion penetration, pH, and porosity tests. A 16 mm-steel bar was fixed at the center of the specimen concrete blocks (specimen size: 10cm x 10cm x 15cm). Corrosion probability was determined by conducting Half Cell Potential test. Our result showed that increasing the curing temperature to 80ºC induced chloride ion penetration into the concrete's effective pores, despite improvements in compressive strength. We also found that chloride ingress on the geopolymer concrete increases commensurately with the increase of the curing temperature. The corrosion potential measurement of geopolymer concrete was higher than OPC concrete even if corrosion was not observed in reinforcing. Based on our result, we suggest that the corrosion categorization for geopolymer concretes needs to be adjusted.

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The Influence of Salt Water on Chloride Penetration in Geopolymer Concrete

Cited by 14 publications

References 13 publications

Factors affecting durability properties of GPC: A review

Factors affecting durability properties of GPC: A review

Pengaruh Rasio L/D Antara Lapisan Mortar Geopolimer Berbahan Dasar Fly Ash Terhadap Kuat Tekan Beton Dengan Seawater Curing

The effect of steam curing on chloride penetration in geopolymer concrete

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