Assessment of Cuban Kaolinitic Clays as Source of Supplementary Cementitious Materials to Production of Cement Based on Clinker – Calcined Clay – Limestone

Reyes, Roger S. Almenares; Díaz, Adrián Alujas; Rodrı́guez, Sergio; Rodríguez, Carlos Alberto Leyva; Hernández, José Fernando Martirena

doi:10.1007/978-94-024-1207-9_4

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…Geological surveys conducted in Cuba demonstrated that the Cuban clay deposits had the potential to be used for LC 3 production. Therefore, the first industrial trial for calcined clay production was held in Cuba [ 47 , 48 ]. The use of LC 3 in Cuba would be cost efficient and the greenhouse gas emissions would be significantly reduced [ 46 , 49 ].…”

Section: Resultsmentioning

confidence: 99%

Research evolution of limestone calcined clay cement (LC3), a promising low-carbon binder – A comprehensive overview

Mañosa,

Calderón,

Salgado-Pizarro

et al. 2024

Heliyon

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Section: Resultsmentioning

confidence: 99%

Research evolution of limestone calcined clay cement (LC3), a promising low-carbon binder – A comprehensive overview

Mañosa,

Calderón,

Salgado-Pizarro

et al. 2024

Heliyon

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“…No less important are the technological aspects related to LC 3 production. The authors of paper [ 170 ] undertook the assessment of suitability of four clays from deposits located in Cuba for LC 3 production. The results turned out to be promising as they indicated that all examined clays had the potential to be used in ternary blend cement production.…”

Section: Lime Calcined Clay Cement (Lc 3 )mentioning

confidence: 99%

Calcined Clay as Supplementary Cementitious Material

2020

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Calcined clays are the only potential materials available in large quantities to meet the requirements of eco-efficient cement-based materials by reducing the clinker content in blended cements or reducing the cement content in concrete. More than 200 recent research papers on the idea of replacing Portland cement with large amounts of calcined clay are presented and discussed in detail. First, the fundamental information about the properties and structure of clay minerals is described. Then, the process of activation and hydration of clays is discussed, including the methods of pozzolanic activity assessment. Additionally, various testing methods of clays from different worldwide deposits are presented. The application of calcined clay in cement and concrete technology is then introduced. A separate chapter is devoted to lime calcined clay cement. Then an influence of calcined clay on durability of concrete is summarized. Finally, conclusions are formulated.

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Calcareous smectite clay as a pozzolanic alternative to kaolin

Danner

Norden²,

Justnes

2019

European Journal of Environmental and Civil Engineering

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The hydration of cement pastes with addition of a kaolinite rich clay (Clay A) and a calcareous smectite rich clay (Clay B) was investigated with isothermal calorimetry, in-situ XRD, PXRD, TGA and EPMA. Portland cement was replaced by 20, 35 and 50 weight% calcined clay in cement pastes and mortars. Both clays showed good pozzolanic reactivity. However, clay A having a higher amount of metakaolin and higher specific surface was more reactive in terms of CH consumption and mortar strength development. 50% replacement of PC by calcined Clay A resulted in increased 28 day compressive strength while mortars with 50% calcined Clay B showed almost equal 28 day compressive strength compared to the reference. With increasing addition of calcined clay, the second aluminate reaction (formation of AFm phase) of cement hydration was accelerated and the cement pastes became under sulphated. This resulted in a stronger and earlier sulphate depletion peak, especially in pastes with calcined Clay A. Due to 3% calcite in the used cement the main hydration product found was carboaluminate hydrate. The favoured formation of carboaluminate hydrate stabilised ettringite in the cement pastes.

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Assessment of Cuban Kaolinitic Clays as Source of Supplementary Cementitious Materials to Production of Cement Based on Clinker – Calcined Clay – Limestone

Cited by 3 publications

References 7 publications

Research evolution of limestone calcined clay cement (LC3), a promising low-carbon binder – A comprehensive overview

Research evolution of limestone calcined clay cement (LC3), a promising low-carbon binder – A comprehensive overview

Calcined Clay as Supplementary Cementitious Material

Calcareous smectite clay as a pozzolanic alternative to kaolin

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