Related references
Note: Only part of the references are listed.
Review
Green & Sustainable Science & Technology
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Summary: In recent years, there has been a movement towards using industrial waste to produce geopolymer cement/concrete in order to reduce CO2 emissions. A literature review has shown that these geopolymer materials have demonstrated good mechanical properties and environmental benefits.
Article
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Alida Abdullah et al.
Summary: This research focuses on the inter-particle effect on the properties of fly ash geopolymer aggregates with different molarities of sodium hydroxide. The results show that a low concentration of NaOH can result in higher impact strength but lower density in fly ash geopolymer aggregates.
Article
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Xianhui Zhao et al.
Summary: This study investigated the effects of incorporating carbide slag on the long-term properties of fly ash-based geopolymer composites. Results showed that an additional 20.0% of carbide slag reduced fluidity, increased conductivity, and improved long-term flexural strength and toughness. The microstructures of the composites revealed a mixture of sodium aluminosilicate and calcium silicate hydration gels, providing a basis for the reuse of carbide slag in various scenarios.
Article
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Jan Kohout et al.
Summary: This study investigated the effect of K/Al ratio on the thermo-mechanical properties of geopolymer composites. The results showed that increasing K/Al ratio led to a decline in mechanical properties, except for a local maximum at a K/Al ratio equal to one. Additionally, it was found that for thermal applications above 600°C, it is better to use samples with lower K/Al ratios (0.55 or 0.70).
Article
Polymer Science
Yi-Che Hsieh et al.
Summary: This study aims to evaluate the process of synthesizing potassium-based geopolymers into leucite ceramics under various conditions, revealing the reaction mechanisms and characteristics of the KGL network. The results show that an adequate curing time can enhance material properties and form a more stable structure. By analyzing the variables, the optimal combination for forming the purest leucite phase was identified.
Article
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Article
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Summary: This article focuses on developing comprehensive technology for activating concrete made by various production techniques, investigating the significant improvement in microstructure and characteristics. Results show that complex mechanochemical activation of concrete mixture components can lead to synergistic effects and improved concrete composition.
APPLIED SCIENCES-BASEL
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Summary: This article explores a new technology for producing high-performance concrete using alkalization technology, which achieves energy saving, resource conservation, and reduced labor intensity. Experimental results show that the synergistic effect of the new technology improves the physical and mechanical characteristics of concrete, positively impacting the overall performance of concrete structures. Additionally, a method for controlling the properties of concrete structures has been established.
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Article
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Summary: Synthetic metakaolin with fixed composition was chemosynthetically produced and used to prepare Na-based geopolymer precursors with various Si/Al molar ratios. Zeolite/geopolymer composites or monolith-type zeolites were successfully fabricated through a hydrothermal process, showing the tunability of composition and transformation potential of geopolymer precursors into zeolite.
Article
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Summary: The reuse of waste glass can reduce waste quantity and ecological damage while lowering transportation costs. This study examined the impact of waste glass on the mechanical properties and microstructure of new geopolymers. Demonstrated through various tests including FTIR, waste glass showed reactivity and potential as non-structural materials.
Article
Chemistry, Physical
Hamed Fazli et al.
Summary: Geopolymer binders are being considered as an alternative to ordinary Portland cement due to their potential to reduce CO2 emissions. Experimental studies were conducted to investigate the compatibility between coarse aggregate and geopolymer binder in concrete. The findings showed significant differences in mechanical properties and microstructure between metakaolin-based geopolymer concrete and ordinary concrete, providing insights for future engineering applications.
Article
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Jacob Junior et al.
Summary: The study examined the effects of mono and hybrid fibres on various properties of fly ash geopolymer mortar. It was found that steel fibres could increase compressive strength, while low-modulus fibres led to significant strength reduction. Multiple cracking and deflection hardening behaviors could be achieved in high sand to binder ratio fly ash geopolymer mortars by using steel fibres in mono or hybrid forms.
Review
Chemistry, Physical
Azad A. Mohammed et al.
Summary: Through data analysis, it was found that some past equations can be applied to predict different mechanical properties of geopolymer concrete, but also identified cases where certain equations overestimated test data.
Article
Polymer Science
Rajab Abousnina et al.
Summary: This study demonstrates that adding short fibers can improve the mechanical properties of geopolymer mortar containing light crude oil, especially when using straight PP fibers and a fiber dosage of 0.5%. This new material can be used for building and construction applications.
Article
Chemistry, Multidisciplinary
Levon R. Mailyan et al.
Summary: This article investigates the influence of steel, basalt, and polypropylene fiber materials on the strength and deformation characteristics of concrete, determining the most effective combinations and optimal volume concentrations of these fibers. The study shows significant improvements in compressive strength, tensile strength, deformation properties, and elastic modulus in fiber-reinforced concretes made with various combinations of dispersed reinforcement.
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Article
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Article
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Summary: This study investigated the use of waste stone powder (WSP) in geopolymer synthesis, finding that WSP additions have a small but positive effect on the properties of geopolymers and can serve as an accelerator for geopolymer reaction solidification. It demonstrated that previously landfilled WSP can be utilized in geopolymers, contributing to environmental burden reduction.
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Review
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Proceedings Paper
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