Influence of raw materials and potassium and silicon concentrations on the formation of a zeolite phase in a geopolymer network during thermal treatment

Prud’Homme, Elodie; Michaud, Philippe; Joussein, Emmanuel; Rossignol, Sylvie

doi:10.1016/j.jnoncrysol.2012.05.043

Cited by 31 publications

(12 citation statements)

References 42 publications

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“…Similar results have been obtained by Prud'homme et al [33]. It is important to note that these authors used alkaline solution to prepare geopolymer cements.…”

Section: Ir Spectroscopysupporting

confidence: 84%

Water resistance and thermal behavior of metakaolin-phosphate-based geopolymer cements

Bewa

Tchakouté

Fotio

et al. 2018

Journal of Asian Ceramic Societies

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The main target of this work was to investigate the thermal behavior and water resistance of geopolymer cement made from metakaolin as an aluminosilicate source using phosphoric acid solution (10 M) as a hardener. The obtained geopolymer cements were cured at room temperature for 28 days, the one part was treated at 200°C, 400°C, 600°C, 800°C and 1000°C, and the others were soaked in water for 28 days. The geopolymer cements were characterized by microstructural properties using X-ray diffractometry, infrared spectroscopy, microstructure, physical property based on water resistance and thermo-mechanical properties (thermal analysis, compressive strength). The results show that the compressive strength of the unheated geopolymer cement was 87.96 MPa. The ones soaked in water revealed a strength of 40.71 MPa. This indicates that the specimens soaked in water lose about 54% of their strengths. The X-ray patterns of heated geopolymer cements showed the formation of crystalline phases even at relatively low temperatures. It was typically found that the compressive strength of metakaolin-phosphate-based geopolymer cements decreases due to the hydrolysis of Si-O-P bonds in the presence of water. ARTICLE HISTORY

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“…Similar results have been obtained by Prud'homme et al [33]. It is important to note that these authors used alkaline solution to prepare geopolymer cements.…”

Section: Ir Spectroscopysupporting

confidence: 84%

Water resistance and thermal behavior of metakaolin-phosphate-based geopolymer cements

Bewa

Tchakouté

Fotio

et al. 2018

Journal of Asian Ceramic Societies

View full text Add to dashboard Cite

show abstract

“…Several factors affect the final properties of a geopolymeric specimen consisting of the aluminosilicate source [5,6], concentration of alkali solution [5], aggregate content and size [7,8], binder to alkali activator ratio [9,10], oven curing time and temperature [11], curing medium [12] and so on. Considering the entire factors in a specific study, of course, is not feasible.…”

Section: Introductionmentioning

confidence: 99%

Compressive strength of high strength class C fly ash-based geopolymers with reactive granulated blast furnace slag aggregates designed by Taguchi method

Bagheri¹,

Nazari²

2014

Materials & Design (1980-2015)

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“…The pH and Si : Al and Na : K ratios of the reacting solutions were important parameters determining the nature of the products formed from obsidian. Formation of the zeolite could be due to the quantity of silica and grain size as investigated by Prudhomme et al [20].…”

Section: X-ray Diffraction Analysismentioning

confidence: 96%

Development and Characterization of Norite-Based Cementitious Binder from an Ilmenite Mine Waste Stream

Khalifeh

Saasen

Larsen

et al. 2017

Advances in Materials Science and Engineering

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Norite is a major type of solid waste generated during the production of ilmenite. This study focuses on the usability of norite as a solid precursor of alkali-activated cement. Sensitivity analysis was performed to find the influence of different alkali types and particle sizes of the source material on polycondensation. Norite was ground and mixed with sodium hydroxide and potassium hydroxide solutions to produce a binder. Potassium-containing systems were more effective compared to sodium-containing systems with respect to strength development. The X-ray diffraction patterns indicated formation of zeolites, albite, and oligoclase based on the type of activator and used additives. The patterns also revealed formation of an amorphous phase in the matrices of the binder that was cured at 87 ∘ C. Microstructure analysis revealed some degree of crystallization with different Si : Al ratios, which indicated heterogeneity of the binder matrices.

show abstract

Influence of raw materials and potassium and silicon concentrations on the formation of a zeolite phase in a geopolymer network during thermal treatment

Cited by 31 publications

References 42 publications

Water resistance and thermal behavior of metakaolin-phosphate-based geopolymer cements

Water resistance and thermal behavior of metakaolin-phosphate-based geopolymer cements

Compressive strength of high strength class C fly ash-based geopolymers with reactive granulated blast furnace slag aggregates designed by Taguchi method

Development and Characterization of Norite-Based Cementitious Binder from an Ilmenite Mine Waste Stream

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