Geonics (geomimetics) and search for optimal solutions in building materials science

Lesovik, Valery; Sheremet, Alena; Журавлева, А. Э.

doi:10.26518/2071-7296-2021-18-1-120-134

Cited by 6 publications

(5 citation statements)

References 12 publications

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“…Эффективность измельчения в вибрационной мельнице достигается в результате совместного действия ударных и истирающих усилий, которые оказываются более значительными, чем ударные, что минимизирует энергию активации, позволяя уже через 10 мин измельчения получить 42% частиц размером менее 25 мкм и 39% зерен с размерами от 25 до 50 мкм (рисунок 4). Механохимическая активация компонентов композиционного вяжущего приводит к разрушению кристаллической решетки, освобождая накопленную в ней внутреннюю энергию и приводя к росту аморфизации их поверхности [1,2].…”

Section: Figure3 -Dependence Of Cb Strength On the Amount And Granulo...unclassified

“…Источник: составлено авторами. Молекулы интенсификатора помола подобного рода, адсорбируясь на вновь образованных поверхностях, препятствуют самозалечиванию микротрещин и тем самым увеличивают скорость помола [1,2].…”

Section: таблица 2 результаты определения оптимального содержания спunclassified

“…Технологические особенности дорожного строительства выдвигают соблюдение требований к дорожно-строительным материалам в отношении физико-механических свойств и эксплуатационных характеристик [1]. Комплексное достижение поставленных задач возможно путем разработки композиционных вяжущих с контролем процессов управления структурообразованием на нано-, микро-и макроуровне [2,3]. Синергетический эффект достигается путем выбора полиминерального сырья природного и техногенного происхождения с учетом его химического, минерального и гранулометрического составов [4,5,6].…”

Section: Introductionunclassified

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Composite binders based on technogenic raw materials

Klyuev,

Zolotareva,

Ayubov

et al. 2024

Vestn. SibADI

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Introduction. Technological features of road construction require compliance with the requirements for road building materials in terms of physical and mechanical properties and performance characteristics. Control of structure formation processes in cement composite systems can be carried out by various methods and approaches, including choosing the optimal composition, adding special additives, regulating hydration conditions and using special processing methods. This makes it possible to improve the properties and characteristics of conglomerate materials, as well as eliminate or slow down the destruction of their structures. The purpose of this article is to develop composite binders for road use.Main part. It has been established that in composite binders with the replacement of 50% of Portland cement with waste from wet magnetic separation of ferruginous quartzites with an identified rational specific surface of 500 m2/kg, the activity remains practically at the same level as in the control additive-free compositions, which allows us to recommend this type of binder for development of concrete compositions for road construction.Conclusions. The addition of the identified rational content of the superplasticizer PFM-NLC (0.6 wt. %) to the co-milled Portland cement-MMC waste system made it possible to create a wide range of composite binders with setting times from 3 minutes. 5 sec. (start) up to 6 min. 35 sec. (end), bending activity up to 9.3 MPa and compression activity 60.7 MPa (with a ratio of bending activity to compression activity of up to 0.16).

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Section: Figure3 -Dependence Of Cb Strength On the Amount And Granulo...unclassified

Section: таблица 2 результаты определения оптимального содержания спunclassified

Section: Introductionunclassified

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Composite binders based on technogenic raw materials

Klyuev,

Zolotareva,

Ayubov

et al. 2024

Vestn. SibADI

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“…Experimental planning methods make it possible to theoretically determine the minimum number and procedure of experiments to obtain a mathematical model. The mathematical model obtained on the basis of the experimental planning reflects the quantitative relationships between the studied parameters and factors influencing them [11,12,15,16,17,18].…”

Section: Theorymentioning

confidence: 99%

Polymer-Bitumen Binders Compositions Selection by Using the Experimental Planning Method

Galdina

Galdin

2021

KEM

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The paper presents the studies on the compositions selection and properties of polymer-bitumen binders obtained using the viscous petroleum bitumen, styrene-butadiene-styrene polymer and plasticizer according to the experimental planning method. Regression equations of the polymer-bitumen binders processing and performance properties, which make it possible to optimize the compositions and predict their properties taking into account the operating conditions, were obtained. Polymer-bitumen binders in comparison with the properties of viscous road bitumen have the increased indicators of heat resistance, crack toughness, ductility and elasticity. To obtain the adequate mathematical model, the experimental data were processed, compositions were optimized and dependence diagrams were constructed by using the Maple software package. The software for a personal computer including the algorithm and program for selecting the polymer-bitumen binders has been developed. When using the software it is possible to automate the calculation of the polymer-bitumen binders compositions with a given set of technical properties.

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“…It is known that the mechanism as well as the terms of structure formation dramatically affect the composition of the final binder system. Traditional binding systems such as Portland cement, gypsum, lime cement are thoroughly studied in terms of phase-and structure formation taking into account various contributing factors [1][2][3][4][5][6]. The production technology as well as the field of application for this category of binders with different performance take place.…”

Section: Introductionmentioning

confidence: 99%

The Development of Composite Nanostructured Gypsum Binder with Enhanced Heat Resistance Performance

Cherevatova

Zhernovskaya

Kozhukhova

et al. 2019

MSF

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The subject of this study was an experimental confirmation of stability of composite nanostructured gypsum silicate binder (CNGSB) system under high-temperature exposure (up to 1000 °C). The hypothesis of the heat-resistance performance of gypsum-based binder was crystallization process in CNGSB system involving a silicate constituent as a reactive component in NB. XRD and DTA analyses demonstrated that thermal exposure of CNGSB to wide range of temperatures of 20–1000 °C leads to α-quartz to β-quartz phase transformation in the binder; amorphous alkali-aluminosilicate (gel) changes to crystal phase of Са-albite. The calculation of cell volumes characteristics for low-temperature (before thermal exposure) and high-temperature (after thermal exposure) phases was performed. The calculated ratios of unit cell volumes were close to 1 which ensures a structural stability of the GNB under thermal exposure and confirms its heat-resistant performance.

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Geonics (geomimetics) and search for optimal solutions in building materials science

Cited by 6 publications

References 12 publications

Composite binders based on technogenic raw materials

Composite binders based on technogenic raw materials

Polymer-Bitumen Binders Compositions Selection by Using the Experimental Planning Method

The Development of Composite Nanostructured Gypsum Binder with Enhanced Heat Resistance Performance

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