Effect of waste glass powder on the durability and microstructural properties of fly ash-GGBS based alkali activated concrete containing 100 % recycled concrete aggregate

Singh, Rudra Pratap; Mohanty, Bijayananda

doi:10.1016/j.conbuildmat.2024.138024

Construction and Building Materials

2024

DOI: 10.1016/j.conbuildmat.2024.138024

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Effect of waste glass powder on the durability and microstructural properties of fly ash-GGBS based alkali activated concrete containing 100 % recycled concrete aggregate

Rudra Pratap Singh,

Bijayananda Mohanty

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2024

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Cited by 3 publications

References 88 publications

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Multi-objective optimization and prediction of strength along with durability in acid-resistant self-compacting alkali-activated concrete

Parhi,

Nanda,

Panigrahi

2024

Construction and Building Materials

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Multi-objective optimization and prediction of strength along with durability in acid-resistant self-compacting alkali-activated concrete

Parhi,

Nanda,

Panigrahi

2024

Construction and Building Materials

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Improving the performance of crumb rubber concrete using waste ultrafine glass powder

Mo,

Tian,

Ren

et al. 2024

Structures

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Sustainable Cementitious Materials: Strength and Microstructural Characteristics of Calcium Carbide Residue-Activated Ground Granulated Blast Furnace Slag–Fly Ash Composites

Liu,

Xiao,

Yang

et al. 2024

Sustainability

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This study developed a sustainable low-carbon cementitious material using calcium carbide residue (CCR) as an alkali activator, combined with ground granulated blast furnace slag (GGBS) and fly ash (FA) to form a composite. The objective was to optimize the CCR dosage and the GGBS-to-FA ratio to enhance the unconfined compressive strength (UCS) of the composite, providing a viable alternative to traditional Portland cement while promoting solid waste recycling. Experiments were conducted with a water-to-binder ratio of 0.55, using six GGBS-to-FA ratios (0:10, 2:8, 4:6, 6:4, 8:2, and 10:0) and CCR contents ranging from 2% to 12%. Results indicated optimal performance at a GGBS-to-FA ratio of 8:2 and an 8% CCR dosage, achieving a peak UCS of 18.04 MPa at 28 days, with 79.88% of this strength reached within just 3 days. pH testing showed that with 8% CCR, pH gradually decreased over the curing period but increased with higher GGBS content, indicating enhanced reactivity. Microstructural analyses (XRD and SEM-EDS) confirmed the formation of hydration products like C-(A)-S-H, significantly improving density and strength. This study shows CCR’s potential as an effective and environmentally friendly activator, advancing low-carbon building materials and resource recycling in construction.

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Effect of waste glass powder on the durability and microstructural properties of fly ash-GGBS based alkali activated concrete containing 100 % recycled concrete aggregate

Cited by 3 publications

References 88 publications

Multi-objective optimization and prediction of strength along with durability in acid-resistant self-compacting alkali-activated concrete

Multi-objective optimization and prediction of strength along with durability in acid-resistant self-compacting alkali-activated concrete

Improving the performance of crumb rubber concrete using waste ultrafine glass powder

Sustainable Cementitious Materials: Strength and Microstructural Characteristics of Calcium Carbide Residue-Activated Ground Granulated Blast Furnace Slag–Fly Ash Composites

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