Effects of alkali-activated slag binder and shape-stabilized phase change material on thermal and mechanical characteristics and environmental impact of cementitious composite for building envelopes

Jeon, In Kyu; Azzam, Abdullah; Jebaei, Hussein Al; Kim, Yong-Rak; Aryal, Ashrant; Baltazar, Juan-Carlos

doi:10.1016/j.jobe.2023.107296

Cited by 3 publications

(1 citation statement)

References 60 publications

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“…Dai [17] and Wang [18] found that different alkali dosages have different effects on the properties of AC. Other research [19][20][21] further indicated that when the water glass modulus is in the range of 1.0-1.4 and the water-cement ratio (W/C) is maintained in the range of 0.30-0.40, the mechanical properties of AC reach the best state. Predecessors have performed a lot of mature research on the performance and dosage of alkali excitation in ordinary concrete, and whether alkali-activated cement can show the same good performance in CLC as in traditional concrete has become the focus of this paper.…”

Section: Introductionmentioning

confidence: 97%

Analysis of the Influence of Shell Sand Content on the Performance of Ceramisite Lightweight Aggregate Concrete

Liu,

Li,

Lun

et al. 2024

Buildings

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This study investigates the impact of varying shell sand replacement rates (0%, 5%, 10%, 15%, 20%, 25%) on the properties of clay ceramsite lightweight aggregate concrete (CLC) through six experimental groups. Results indicate that a 5% replacement rate of shell sand yields optimal mechanical properties and working performance in CLC. Examination of specimen failure diagrams, electron microscopy and theoretical analysis reveals that shell sand predominantly influences CLC’s overall performance by influencing internal pore development and the formation of a “bonding defect zone” between shell sand and cementitious material. This also elucidates why specimen failure predominantly arises from internal ceramic particle fracture.

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Section: Introductionmentioning

confidence: 97%

Analysis of the Influence of Shell Sand Content on the Performance of Ceramisite Lightweight Aggregate Concrete

Liu,

Li,

Lun

et al. 2024

Buildings

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Evaluating the potential of optimized PCM-wallboards for reducing energy consumption and CO2 emission in buildings

Al Jebaei,

Aryal,

Jeon

et al. 2024

Energy and Buildings

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Designing Hollow Brick Waste Based Alkali Activated Composites by Taguchi Method

KURTAY YILDIZ

2024

Sakarya University Journal of Science

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The use of waste materials in alkali-activated material technologies is important in terms of sustainability. The production of alkali-activated composites (AAC) with hollow brick waste (HBW) as a binder may contribute to solving existing environmental problems related to the depletion of natural resources. In this study, mortars were produced using different concentrations (6 M, 8 M, and 10 M NaOH) and Alkaline Activator/Powder Material (AA/PM) ratios of 0.30, 0.35, and 0.40 through the alkali activation method. The hollow brick waste (HBW) powder was obtained by grinding inactive bricks in brick factories. The prepared mortars were cured separately for each mixture at 90°C for 24 hours. Compressive and flexural strength tests were performed on the prepared perforated hollow brick waste-based composites. The Taguchi method was used to determine the optimum mixing ratios by conducting compressive and flexural strength tests on the produced AAC. To optimize the parameters determined using the Taguchi method, the best mixing ratios were determined using the L9 (3^2) orthogonal index. The compressive and flexural strengths of the mixtures were evaluated considering the signal to noise ratio "larger the better" and the highest compressive strength value was 63.669 MPa and the highest flexural strength value was 6.629 MPa according to the optimum values. According to the obtained results, it was determined that the AAC produced at 6 M NaOH and 0.30 AA/PM ratio exhibited the highest compressive and flexural strength values.

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Effects of alkali-activated slag binder and shape-stabilized phase change material on thermal and mechanical characteristics and environmental impact of cementitious composite for building envelopes

Cited by 3 publications

References 60 publications

Analysis of the Influence of Shell Sand Content on the Performance of Ceramisite Lightweight Aggregate Concrete

Analysis of the Influence of Shell Sand Content on the Performance of Ceramisite Lightweight Aggregate Concrete

Evaluating the potential of optimized PCM-wallboards for reducing energy consumption and CO2 emission in buildings

Designing Hollow Brick Waste Based Alkali Activated Composites by Taguchi Method

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