Cement-Free Refractory Concretes. Part 2. High-Alumina and Corundum Ceramic Concretes1

Pivinsky, Yu. E.; Dyakin, P. V.; Grishpun, E. M.; Gorokhovsky, A. M.

doi:10.1007/s11148-020-00408-0

Cited by 17 publications

(6 citation statements)

References 24 publications

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“…Let us consider the basic rheological models and equations for the description of their flow, given in the contemporary literature [6,7,10,12,13].…”

Section: Goal Tasks Methods Of Studymentioning

confidence: 99%

“…Particular attention should be paid to the polymers' additives functional groups composition as well as their polymerization degree [5]. From the point of view of their technological properties, plastering, masonry, facing, adhesive compositions, the flooring mixes in civil and industrial construction most often represent combinations of basic structures (thixotropic, dilatant and pseudoplastic) and have different rheological parameters [6,7]. Rheological studies provide the important information about the fluidity of the above listed disperse systems, suspensions and pastes.…”

Section: Introductionmentioning

confidence: 99%

“…Rheological studies provide the important information about the fluidity of the above listed disperse systems, suspensions and pastes. To study the dispersed systems rheological properties, various types of rheometers, including rotational and capillary viscometers are used [6][7][8][9][10]. Such studies make it possible to purposefully create cement-polymer compositions with the desired properties using the most rational for each case initial components [5].…”

Section: Introductionmentioning

confidence: 99%

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To the Question of the Cement-Polymer Composite Materials’ Rheological Properties

Onoprienko

2019

MSF

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The domestic and foreign production polymers effects studies’ results on the cement-polymer test rheological indicators are analyzed, taking into account the composition of the functional groups of water-soluble polymers and the viscosity of their one-percent aqueous solution. The rheological studies’ results of the Yunis Granit bonding material for fixing the large-format slabs of natural stone and porcelain are presented. The Ostwald, Bingham and Barkley-Herschel equations are considered to describe the flow of pseudoplastic, viscoelastic and rheological complex bodies and their disadvantages. The formula for calculating the rheological parameters: the flowability and the dilution coefficient of nonlinear visco-plastic bodies is proposed and verified. It is shown that the proposed formula describes the structural-mechanical properties of nonlinear visco-plastic systems with a high correlation coefficient.

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“…Let us consider the basic rheological models and equations for the description of their flow, given in the contemporary literature [6,7,10,12,13].…”

Section: Goal Tasks Methods Of Studymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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To the Question of the Cement-Polymer Composite Materials’ Rheological Properties

Onoprienko

2019

MSF

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“…The studies of the authors [2][3][4][5][6][7][8] are devoted to solving issues related to the development of effective technologies for refractory materials that can provide future production industries.…”

Section: Introductionmentioning

confidence: 99%

Development of a technology for producing ceramic refractory material in a composition of montmorillonite clays (bentonite-like) and ferrochrome production wastes

Montayev¹,

Shakeshev²,

Zharylgapov³

2020

MATEC Web Conf.

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The article presents the results of scientific and experimental studies on the creation of ceramic refractory material. Montmorillonite clay (bentonite-like) of the Pogodaevsky deposit and ferro-dust from self-decaying slags of low-carbon ferrochrome of the Aktobe ferroalloy plant were selected as the most effective types of raw materials in terms of their physico-mechanical properties and chemico-mineralogical composition. The composition of ceramic mass in chamotte - ferro dust - binder and rational technological parameters of molding, drying and firing was developed. The basic physical and mechanical properties of the obtained ceramic samples, which have high strength, average density, low linear thermal expansion coefficient and fire shrinkage, are studied. Ceramic samples based on the proposed raw material composition can withstand temperatures up to 1350 С, which is 200-300 С higher than ceramic samples based on clay raw materials. The high strength indices and refractoriness of samples are explained by the fact that in result of heat treatment of the studied ceramic composition, a densely sintered framework with reinforced refractory minerals such as forsterite Mg2 (SiO4) and spinel (MgAl2O4) is formed. The prospects of this research area are associated with the creation of innovative technologies for the production of popular refractory materials, but also with an environmental issue. Processing of technogenic resources of Kazakhstan will not only reduce the consumption of natural resources, but also reduce the human impact on the environment.

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“…As noted above, alkali-activated binders attain thermal resistant properties due to specific alumosilicate oxides composition which is very similar to that in unburned ceramic materials such as highly concentrated binding systems (HCBS) invented by Yu. A. Pivinsky [ 24 ], and nanostructured binders developed by A.V. Cherevatova’s research group [ 25 , 26 , 27 ].…”

Section: Introductionmentioning

confidence: 99%

The Correlation of Temperature-Mineral Phase Transformation as a Controlling Factor of Thermal and Mechanical Performance of Fly Ash-Based Alkali-Activated Binders

Kozhukhova

Zhernovskaya

et al. 2020

Materials

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This research focuses on an evaluation of mineral phase and structure transformations in Class F fly ash-based geopolymer systems. The research also studies the strength response of geopolymers when exposed to temperatures between 25 and 800 °C. The purpose of this research is to understand the processes that occur in alkali-activated systems within a wide range of high-working temperatures. The XRD, SEM, and DTA/TG analyses performed for the alkali-activated compositions after exposure to different temperatures confirmed a direct correlation of structural transformations with strength performance. The detrimental effect of sodium hydrocarbonate Na3(HCO3)(CO3) 2H2O or trona contained in one of the fly ash products was observed for the corresponding alkali-activated composite under high-temperature exposure between 600 and 800 °C. It was also detected that a high-temperature interval of 400–800 °C created favorable conditions that helped to form nanosized nepheline crystals and an additional vitreous substance that also contributed to a denser alkali-activated matrix.

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Cement-Free Refractory Concretes. Part 2. High-Alumina and Corundum Ceramic Concretes1

Cited by 17 publications

References 24 publications

To the Question of the Cement-Polymer Composite Materials’ Rheological Properties

To the Question of the Cement-Polymer Composite Materials’ Rheological Properties

Development of a technology for producing ceramic refractory material in a composition of montmorillonite clays (bentonite-like) and ferrochrome production wastes

The Correlation of Temperature-Mineral Phase Transformation as a Controlling Factor of Thermal and Mechanical Performance of Fly Ash-Based Alkali-Activated Binders

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