Effect of sulfate content and synthesis conditions on phase composition of belite-ye'elimite-ferrite (BYF) clinker

Sabbah, Adam; Zhutovsky, Semion

doi:10.1016/j.cemconres.2022.106745

Cited by 20 publications

(3 citation statements)

References 105 publications

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“…X-ray powder diffraction (XRPD) analysis is performed using a PANalytical EMPYREAN X-ray diffractometer. Following data collection and scanning, the XRD scans are analyzed using the PANalytical HighScore Plus software (PANalytical) with the ICDD PDF-4 Minerals and PAN-ICSD databases, and quantitative phase analysis is conducted by means of Rietveld refinement [32].…”

Section: X-ray Diffraction (Xrd)mentioning

confidence: 99%

Evaluating Clay Characteristics for Printable Geo-Materials: A Case Study of Clay–Sand Mixes

Rückrich,

Agranati,

Grobman

2024

Buildings

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Extrusion-based 3D Construction Printing (3DCP) involves developing novel material mixtures that incorporate local geo-materials. Given that clay minerals and silt are major causes of soil variability, this study focuses on the fine fraction of soil to facilitate purpose-oriented design, classification, and standardization. We begin with an overview of current research in the field and general information about clays. Subsequently, we establish an evaluation methodology, examining various clay–sand mix ratios, along with locally sourced material to gain general insights into the material’s clay-dependent macro-printability characteristics. The findings are then correlated and discussed in relation to the microcharacteristics of the clays, emphasizing the significance of both intraparticle and interparticle swelling for strength and cohesiveness. Factors such as swelling ability, and charge, which may be reflected by pH, are pivotal for strength; while the quantity of clay and its interparticle swelling ability, denoted by the plasticity index (PI), delineate cohesiveness, which is essential for pumpability and extrudability. Furthermore, the presence of organic material and other minerals is observed to have a significant impact on these properties.

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Section: X-ray Diffraction (Xrd)mentioning

confidence: 99%

Evaluating Clay Characteristics for Printable Geo-Materials: A Case Study of Clay–Sand Mixes

Rückrich,

Agranati,

Grobman

2024

Buildings

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“…A Figura 7 apresenta os difratogramas as pastas de cimento YCC com três dias de hidratação. Corroborando com o observado por outros autores (Jansen et al, 2017;Sabbah;Zhutovsky, 2022), para os cimentos YCC os principais picos observados por DRX foram das fases belita, ye'elimita, gipsita e etringita. A análise dos padrões de difração confirmou que os cimentos YCC produzidos não possuem portlandita como produto de hidratação, este resultado está de acordo com Bem Haha, Winnefeld e Pisch (2019).…”

Section: Difração De Raios-xunclassified

Hidratação na idade inicial de cimentos contendo ye’elemita (YCC) produzidos com catalisador gasto (SFCC)

Matos,

Andrade Neto,

Matos

et al. 2024

Ambient. constr.

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Resumo Diante dos impactos ambientais associados à produção do cimento Portland convencional, o estudo de cimentos especiais de reduzido impacto ambiental tem sido uma tendência. Neste contexto, os cimentos contendo ye’elimita (YCC) se destacam devido à baixa emissão de CO2. Apesar das vantagens ambientais, a alta demanda por alumínio limita economicamente a produção destes cimentos. Uma alternativa para viabilizar a sua produção é o uso de matérias-primas residuais como fonte de Al2O3, a exemplo do SFCC (catalizador gasto do craqueamento catalítico de leito fluidizado). Diante disso, este trabalho tem como objetivo avaliar a hidratação na idade inicial de cimentos YCC produzidos a partir do coprocessamento do SFCC. Para isso, foram produzidos seis clínqueres com diferentes teores de ye’elimita, com e sem SFCC. Estes foram caracterizados por DRX/Rietveld. As pastas foram avaliadas por TG/DTG e DRX/Rietveld para compreender o mecanismo de hidratação em idade inicial destes cimentos. Foi possível sintetizar as principais fases dos YCC, nos clínqueres com e sem SFCC. Além disso, na idade avaliada, as pastas com e sem SFCC apresentaram composição de fases comparáveis indicando o potencial de coprocessamento do SFCC neste tipo de cimento.

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“…Therefore, the development of low carbon binders able of replace ordinary Portland cement (OPC) is crucial to address the growing housing needs and decouple social development and well-being from climate change. Emergent binders with environmentally favorable profiles that are being intensely investigated include, among others, belite-rich Portland and belite ye'elimite-ferrite cements [7][8][9][10][11], magnesium-based cements [7], carbonation-hardening cements [7,12], calcined clay limestone cements [13][14][15][16], geopolymers, and alkali-activated materials [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

An Investigation on the Synthesis of Alkali Activated Materials from Thermally Modified Clays

2022

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The sustainability and economic competitiveness of alkali activation technology greatly depends on expanding the raw materials database with locally available resources. Therefore, a notable trend has been witnessed toward the exploitation of common clays as alternatives to well-established solid aluminosilicate precursors due to their availability and wide geographical distribution. However, common clays are complex and dedicated research is needed to tailor synthesis procedures and mix designs for different clay resources. This paper describes the outcomes of a study conducted to investigate the influence of several synthesis parameters (solid-to-liquid ratio, NaOH molarity, Si availability, and curing conditions) on the properties of alkali activated binders produced from different thermally modified clays. Optimal synthesis conditions for benchmark metakaolin systems have been identified and binders were produced with progressive dosages of metakaolin replacement by common local clays. Fundamental physical and mechanical properties such as apparent density, open porosity, water absorption, and compressive strength were examined at different curing ages, and X-ray diffraction (XRD) was used to provide complementary mineralogical insights. By combining the effects of the parameters studied, mortar specimens were produced with the developed binders, reaching compressive strength values exceeding 28.2 ± 0.1 MPa, a bulk density as low as 1.78 ± 0.0 g/cm3, and open porosity and water absorption values lower than 15% and 8%, respectively. These properties are comparable to those of conventional hydraulic products, which presents them as interesting candidates for construction. Ultimately, this work aims to contribute with valuable insights toward the valorization of a large group of unexploited clay precursors by demonstrating the feasibility of producing technologically competitive alkali activated materials with little or no use of the prime precursors, thus adding to the extant knowledge and contributing to future scientific and industrial developments in this field.

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Effect of sulfate content and synthesis conditions on phase composition of belite-ye'elimite-ferrite (BYF) clinker

Cited by 20 publications

References 105 publications

Evaluating Clay Characteristics for Printable Geo-Materials: A Case Study of Clay–Sand Mixes

Evaluating Clay Characteristics for Printable Geo-Materials: A Case Study of Clay–Sand Mixes

Hidratação na idade inicial de cimentos contendo ye’elemita (YCC) produzidos com catalisador gasto (SFCC)

An Investigation on the Synthesis of Alkali Activated Materials from Thermally Modified Clays

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