Effect of Ternary Blends on Mechanical Strength, Durability and Microstructural Properties of Geopolymer Concrete

Khalid, S. Mohammed; Shobha, M. S.

doi:10.1007/s40996-023-01241-4

Iran J Sci Technol Trans Civ Eng

2023

DOI: 10.1007/s40996-023-01241-4

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Effect of Ternary Blends on Mechanical Strength, Durability and Microstructural Properties of Geopolymer Concrete

S. Mohammed Khalid,

M. S. Shobha

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2024

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Cited by 3 publications

References 36 publications

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Developing Geopolymer Composites with Structural Damage Control Potential: Utilization of Blast Furnace Slag, Calcined Clay, and MWCNT

Filazi,

Yılmazel,

Pul

2024

Iran J Sci Technol Trans Civ Eng

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Developing Geopolymer Composites with Structural Damage Control Potential: Utilization of Blast Furnace Slag, Calcined Clay, and MWCNT

Filazi,

Yılmazel,

Pul

2024

Iran J Sci Technol Trans Civ Eng

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Farkli Kür Yöntemleri̇yle Üreti̇len Geopoli̇mer Harçlarin Bazi Durabi̇li̇te Özelli̇kleri̇ni̇n Çi̇mento Harçlariyla Kiyaslanmasi

Gültekin,

Ramyar

2024

MBTD

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Bu çalışmada, mikrodalga kürü ile üretilen uçucu kül, pomza, perlit ve pişirilmiş kil esaslı geopolimer harçların bazı durabilite özellikleri incelenmiş ve elde edilen sonuçlar geleneksel etüv kürü ile üretilen serilerle kıyaslanmıştır. Bu kapsamda alkali-silis reaksiyonu direnci, kılcal su emme hızı, aşınma direnci deneyleri yapılmış, ayrıca hamur mikro yapıları taramalı elektron mikroskobu ile incelenerek durabilite-içyapı ilişkisi irdelenmiştir. Geopolimer harçların durabilite özelliklerinin karşılaştırılması amacıyla, incelenen harca benzer basınç dayanımına sahip portland çimentolu harçlar üretilmiş ve iki sistemin durabilite konusundaki avantaj ve dezavantajları araştırılmıştır. Geopolimer harçlarda alkali-silis reaksiyonundan kaynaklanan bir genleşme yaşanmadığı ve geopolimer harçların aşınma dirençlerinin, çimento harçları ile kıyaslanabilecek seviyelerde olduğu tespit edilmiştir. Kılcallık deneyi ve taramalı elektron mikroskobu incelemelerinde elde edilen bulgular, alüminosilikat tipi ve kür yönteminin kılcal su emme hızı üzerinde etkili olduğunu; pomza, perlit ve pişirilmiş kil esaslı geopolimer harçların kılcal yolla hızlı bir şekilde su emebildiklerini, bunun da boşluklu mikro yapıdan kaynaklandığını göstermiştir.

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Effect of Fiber Type and Length on Strength, Fracture Energy, and Durability Properties of Microwave-Cured Fiber-Reinforced Geopolymer Mortars

Gultekin

2024

Buildings

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Microwave curing can be an alternative curing method for geopolymer production. Although many properties of microwave-cured geopolymer composites have been investigated, the effect of microwave curing on the strength and durability properties of fiber-reinforced geopolymers remains a topic that requires investigation. In this study, the effect of fiber type and length on the properties of microwave-cured metakaolin-based geopolymers was investigated. For this purpose, PVA (6, 12 mm) and polymer (15, 30 mm) fibers were utilized. Compressive and flexural strength, fracture energy, abrasion resistance, high-temperature resistance, water absorption capacity and rate of capillary water absorption tests were conducted and the microstructure was examined using scanning electron microscopy. For curing, a household microwave oven was used at a power level of 300 watts. With the fibers’ inclusion, fracture energies could be increased by up to 1150%, ductility was enhanced, flexural strengths were increased and compressive strengths decreased. Moreover, the rate of capillary water absorption decreased by up to 13%, while water absorption values increased by between 5% and 12%. The results suggested that microwave curing could be an alternative curing method for the production of fiber-reinforced geopolymer composites, offering shorter curing times and lower energy consumption.

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Effect of Ternary Blends on Mechanical Strength, Durability and Microstructural Properties of Geopolymer Concrete

Cited by 3 publications

References 36 publications

Developing Geopolymer Composites with Structural Damage Control Potential: Utilization of Blast Furnace Slag, Calcined Clay, and MWCNT

Developing Geopolymer Composites with Structural Damage Control Potential: Utilization of Blast Furnace Slag, Calcined Clay, and MWCNT

Farkli Kür Yöntemleri̇yle Üreti̇len Geopoli̇mer Harçlarin Bazi Durabi̇li̇te Özelli̇kleri̇ni̇n Çi̇mento Harçlariyla Kiyaslanmasi

Effect of Fiber Type and Length on Strength, Fracture Energy, and Durability Properties of Microwave-Cured Fiber-Reinforced Geopolymer Mortars

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