Compatibility of waste glass with other by-products for the production of sustainable concrete

Navaneetha, E.; Rao, P.N.; Bahurudeen, A.

doi:10.1016/j.jobe.2023.107922

Cited by 13 publications

(2 citation statements)

References 50 publications

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“…Navaneetha et al [112] investigated hydrophobic concrete incorporating waste glass cullet (WGC) and byproducts. Compressive strength declined as WGC and recycled concrete aggregates (RCA) content increased, with a 23% and 31% reduction at 50% replacement.…”

Section: Sulfate Expansion Reduced By 50% [55]mentioning

confidence: 99%

A comprehensive review of hydrophobic concrete: surface and bulk modifications for enhancing corrosion resistance

Gnanaraj S,

2024

Eng. Res. Express

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Corrosion in concrete structures constitutes significant challenges, threatening integrity and requiring high maintenance costs. Hydrophobic concrete presents an emerging solution for addressing corrosion in concrete structures, especially in marine environments. This review article investigates advanced techniques for surface and bulk modifications of hydrophobic concrete, focusing on their efficacy in enhancing corrosion resistance. Surface modifications using silane-siloxane coatings and polyurethane treatments significantly reduce water absorption by up to 30% and chloride ion permeability by up to 50%. Bulk modifications incorporating nano-silica and calcium stearate demonstrate marked improvements in mechanical properties and corrosion resistance, with calcium stearate reducing corrosion rates by 40%. These treatments also contribute to an average increase in compressive strength of 15% and a decrease in corrosion current densities, indicating practical utility in environments such as marine conditions. Additionally, innovative techniques like fluorosilane treatments and steel fibres further fortify impermeability and structural integrity, demonstrating the versatility of hydrophobic concrete in addressing corrosion challenges. Moreover, using eco-friendly ingredients underscores its potential for sustainable infrastructure development. In summary, hydrophobic concrete offers a comprehensive strategy for combating corrosion, providing surface and bulk modifications that enhance durability, reduce maintenance costs, and ensure the long-term sustainability of modern infrastructure.

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Section: Sulfate Expansion Reduced By 50% [55]mentioning

confidence: 99%

A comprehensive review of hydrophobic concrete: surface and bulk modifications for enhancing corrosion resistance

Gnanaraj S,

2024

Eng. Res. Express

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“…Generally, CDWs are considered as inert solid waste and can be used in concrete [3,[24][25][26][27], mortar [28][29][30], bricks [31,32], blocks [33,34], mountain landscaping [35], etc., according to the different size distributions of CDW. Additionally, some glass waste [36,37] and plastic waste [38,39] have been used in concrete. Zhang et al [40] studied the status of CDWs in China; CDWs could occupy a volume of 7.5 billion m 3 , and the potential recycling value of CDWs was up to USD 401 billion in 2013.…”

Section: Introductionmentioning

confidence: 99%

Application of Aggregates from Construction and Demolition Wastes in Concrete: Review

Luo,

Aguiar,

Wan

et al. 2024

Sustainability

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In the current century, urbanization and the development of the construction industry have led to the generation of construction and demolition waste (CDW), imposing pressure on ecology and the environment. This has attracted the attention of industry personnel and researchers. This work discusses the current research on recycled coarse or fine aggregate, mainly focusing on the physical, mechanical and durability properties of sustainable concrete with recycled coarse or fine aggregate. Furthermore, it also summarizes CDW recycling and classification in major countries, the production processes of recycled aggregate, and the physical properties. This review will provide a reference for the application of concrete with recycled coarse or fine aggregate. Moreover, this review notes that replacing natural aggregates with both coarse and fine recycled aggregates awaits further experimental exploration.

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Synthesis of solid sodium silicate from waste glass and utilization on one-part alkali-activated materials based on spent oil filtering earth

Delgado-Plana,

Bueno-Rodríguez,

Pérez-Villarejo

et al. 2024

Environ Sci Pollut Res

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Alkali activated materials (AAMs) commonly known as geopolymers are considered ecofriendly substitutes for Portland cement. However, these materials still have a significant environmental impact, owing mainly to the use of activators based on commercial chemical products. In this sense, this research focuses on the production and use of waste glass–derived activators AAMs as an alternative to commercial activators. Using a thermochemical synthesis method, activator compositions were systematically designed to achieve predefined activator modulus (Ms = SiO2/Na2O = 0.5; 1.0 and 1.5). These alternative activators were studied by XRD, FTIR and SEM techniques. Additionally, one-part AAMs were manufactured using spent oil filtration earth (SOFE) as precursor and activator with optimum modulus Ms = 1.0. The influence of the Na2O dosage was studied (10; 20 and 30 g of Na2O per every 100 g of SOFE) as well as the influence of the activator modulus maintaining the optimum dosage of 20 g Na2O per 100 g of SOFE. As a control, two-part AAMs were also synthetized with the optimum dosage and modulus employing commercial activators (NaOH + Na2SiO3 solution). Results indicate that the modulus of the alternative activator and especially the Na2O dosage have a significant influence on the technological properties of AAMs based in SOFE, with an optimum compressive strength (35.8 MPa) for the addition of 20 g of Na2O per every 100 g of SOFE using activator with modulus Ms = 1.0. This research embodies a sustainable approach to AAM production and suggests waste glass as a valuable raw material for sodium silicate synthesis intended for the one-part activation of spent filtering earth from the agri-food industry, aligning with the principles of circular economy and sustainable development goals.

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Compatibility of waste glass with other by-products for the production of sustainable concrete

Cited by 13 publications

References 50 publications

A comprehensive review of hydrophobic concrete: surface and bulk modifications for enhancing corrosion resistance

A comprehensive review of hydrophobic concrete: surface and bulk modifications for enhancing corrosion resistance

Application of Aggregates from Construction and Demolition Wastes in Concrete: Review

Synthesis of solid sodium silicate from waste glass and utilization on one-part alkali-activated materials based on spent oil filtering earth

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