Alternative Supplementary Cementitious Materials

Соболев, Константин; Kozhukhova, Marina; Sideris, Kosmas K.; Menéndez, Esperanza; Santhanam, Manu

doi:10.1007/978-3-319-70606-1_7

Cited by 12 publications

(4 citation statements)

References 68 publications

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“…As the utilization of industrial by-products and wastes as binder components and aggregates constitute a valuable segment of cement and concrete technology [66], the construction sector offers unique opportunities for tailings valorization. Besides, this sector has been intensively driven towards diversification of resources.…”

Section: Applications Of Sulfidic Tailings In Construction Materialsmentioning

confidence: 99%

Exploring the Potential for Utilization of Medium and Highly Sulfidic Mine Tailings in Construction Materials: A Review

et al. 2021

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Medium and highly sulfidic tailings are high-volume wastes that can lead to severe environmental damage if not properly managed. Due to the high content of sulfide minerals, these tailings can undergo weathering if put in contact with oxygen and water, generating acid mine drainage (AMD). The moderate-to-high sulfide content is also an important technical limitation for their implementation in the production of construction materials. This paper reviews the use of sulfidic tailings as raw material in construction products, with a focus on cement, concrete, and ceramics. When used as aggregates in concrete, this can lead to concrete degradation by internal sulfate attack. In building ceramics, their implementation without prior treatment is undesirable due to the formation of black reduction core, efflorescence, SOx emissions, and their associated costs. Moreover, their intrinsic low reactivity represents a barrier for their use as supplementary cementitious materials (SCMs) and as precursors for alkali-activated materials (AAMs). Nevertheless, the production of calcium sulfoaluminate (CSA) cement can be a suitable path for the valorization of medium and highly sulfidic tailings. Otherwise difficult to upcycle, sulfidic tailings could be used in the clinker raw meal as an alternative raw material. Not only the SO3 and SiO2-rich bulk material is incorporated into reactive clinker phases, but also some minor constituents in the tailings may contribute to the production of such low-CO2 cements at lower temperatures. Nevertheless, this valorization route remains poorly explored and demands further research.

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Section: Applications Of Sulfidic Tailings In Construction Materialsmentioning

confidence: 99%

Exploring the Potential for Utilization of Medium and Highly Sulfidic Mine Tailings in Construction Materials: A Review

et al. 2021

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“…При производстве строительных композитов используется широкий спектр сырьевых компонентов. При этом значительная их доля перед применением в производственном процессе подвергается предварительной доработке в форме домола до требуемой дисперсности [1][2][3][4][5][6][7], поскольку дисперсность является одним из ключевых индикаторов, определяющих реакционную активность сырья, отвечающую за качество и эксплуатационные характеристики конечного продукта.…”

Section: роль железосодержащего компонента в составе перлитового геопunclassified

Role of Fe-Bearing Component in Perlite-Based Geopolymer When Structural and Phase Transformations

Kozhukhova

Zhernovskaya

Cherevatova

et al. 2020

Bulletin of Belgorod State Technological University Named After. V. G. Shukhov

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Normally, the component composition of building materials makes a significant contribution when formation of final performance properties of them. Moreover, new types of binding systems, in spite of their poor knowledge, this effect on the structural characteristics of final composites also takes place. In this work, perlite-based geopolymer binder as an example, was studied. In framework of the study, it was found that the application of grinding mill with a metal lining leads to the formation of Fe- milling yield, which is included into crushed raw materials (perlite) com-position. It was established that the particles of the resulting Fe- component are nanoscaled. The X-ray phase and chemical analyzes were used to determine the mechanism of the effect of the Fe- component on the properties of perlite-based geopolymer. Microstructure of the hardened geopolymer paste were studied using SEM microscopy. Phase and mineral composition of geopolymer paste obtained by XRD-analysis showed, when the hardening process, nanosized iron hydroxide or bernalite Fe(OH)3(H2O)0.25 is formed in the geopolymer system, that is 5 times more than metallic iron. This is initiates the structure destruction and confirmed by the low values compressive strength of the geopolymer stone. Keywords: Fe-bearing component, metallic milling yield, geopolymer binder, friable structure, the Scherrer formula

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“…The increase in steel recycling as well as the move towards direct reduction of iron means that the supply of GBFS is also problematic [6]. Therefore, efforts have recently focused on finding new low-carbon sources of SCMs [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

New synthetic glass-based supplementary cementitious materials derived from basalt composition

Alzeer

Cheeseman

Kinnunen

2022

Journal of Building Engineering

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Alternative Supplementary Cementitious Materials

Cited by 12 publications

References 68 publications

Exploring the Potential for Utilization of Medium and Highly Sulfidic Mine Tailings in Construction Materials: A Review

Exploring the Potential for Utilization of Medium and Highly Sulfidic Mine Tailings in Construction Materials: A Review

Role of Fe-Bearing Component in Perlite-Based Geopolymer When Structural and Phase Transformations

New synthetic glass-based supplementary cementitious materials derived from basalt composition

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