A Block of Thermal Insulation Materials  With Protective and Decorative Coatings

Bessmertnyy, Vasiliy; Kochurin, D. V.; Bondarenko, Diana; Bragina, L. L.

doi:10.34031/2618-7183-2019-2-1-4-10

Cited by 4 publications

(3 citation statements)

References 6 publications

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“…In order to eliminate the negative influence of water-soluble substances on the cement paste hardening processes, wood is treated with chemical or physical methods (8,9) . A common type of light concrete made from wood waste is wood silicate (10,11) . This material is prepared from a mixture of ground granulated blast furnace slag and caustic sodium (or liquid glass with silicate module M=1... 1.45).…”

Section: Introductionmentioning

confidence: 99%

Los áridos ligeros para los hormigones a base de residuos vegetales

Altayeva¹,

Yestemessova²,

Yespayeva³

2022

Innovaciencia

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Introduction: The increase in the volume of housing construction per capita per year to the level of the eco-nomically developed countries, the tasks of further progressive economic and social develop-ment of the country can be achieved with a corresponding increase in the production of con-struction materials. Materials and Methods: The solution of this task is largely connected with the development of resource- and energy-saving technologies for the production of efficient light construction materials based on wastes from various industries, in particular on wastes of plant origin, which contributes to the expansion of the production range of light, smooth granulated aggregates and light insulating concrete based on them with modifying additives that increase and improve the physical and technical characteristics of these materials. Results and Discussion: There are known technologies for producing light aggregates, mainly by firing. As energy re-sources became more expensive, there was an urgent need to develop easy-to-fill technology in a cost-effective manner. Conclusions: This paper considers a method for producing a light aggregate based on wood processing waste by granulation in a dish granule torus, which is a plate with an inclination angle of 45 0 and the number of mob companies 17-19 rev/min.

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Section: Introductionmentioning

confidence: 99%

Los áridos ligeros para los hormigones a base de residuos vegetales

Altayeva¹,

Yestemessova²,

Yespayeva³

2022

Innovaciencia

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“…Klyuev et al [14] developed high-strength fiber-reinforced concrete based on Russian aggregates. Bessmertny et al [15] researched environmental thermal insulation composites using rock waste.…”

Section: Introductionmentioning

confidence: 99%

Production of Greener High-Strength Concrete Using Russian Quartz Sandstone Mine Waste Aggregates

et al. 2020

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Quartz sandstone (QS) is a mine waste; therefore, its use in construction allows for both reducing the cost of the concrete and contributing to the utilization of waste. The scientific originality of this study is the identification of models of the effect of QS aggregate on the physicomechanical, durability characteristics, and eco-safety of greener high-strength concrete. The study used an energy-efficient method of non-thermal effects of electromagnetic pulses on the destruction mechanisms of quartz-containing raw materials. The characteristics of quartzite sandstone aggregates, including the natural activity of radionuclides, were comprehensively studied. The features of concrete hardening, including the formation of an interfacial transition zone between the aggregate and the cement matrix, were studied, taking into account the chemical and morphological features of quartzite sandstone. In addition, the microstructural and morphological properties of concrete were determined after a 28 day curing. In this study, the behaviors of the concrete with QS aggregate were investigated, bearing in mind the provisions of geomimetics science on the affinity of structures. The results obtained showed that the QS aggregate had the activity of natural radionuclides 3–4 times lower compared to traditional aggregates. Efficient greener concrete with a 46.3 MPa compressive strength, water permeability grade W14, and freeze–thaw resistance of 300 cycles were also obtained, demonstrating that the performance of this greener concrete was comparable to that of traditional concrete with more expensive granite or gabbro diabase aggregates.

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“…The prevention of biological corrosion that affects almost all existing types of materials, regardless of their composition, method of production, and use, is currently one of the most important problems. An effective way to protect building structures from bio-damages and prevent the evolvement of pathogenic microorganisms in the environment is to form coatings with different compositions on the surface of materials (Tokach and Goncharova, 2016;Bondarenko et al, 2018;Bessmertny et al, 2019;Elnaggar et al, 2019), among which paint and varnish materials can be identified as the most techno-economically beneficial (Tarasova, 2018).…”

Section: Introductionmentioning

confidence: 99%

Creation of Biocidal Coatings using the Stabilization of Silver Nanoparticles in Aqueous Acrylic Dispersions

Строкова¹,

Baskakov²,

Ayzenshtadt³

et al. 2020

IJTech

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This article proposes a method for silver nanoparticle (AgNP) stabilization in polymer coatings obtained from aqueous acrylic dispersions. The main objective of the study was to improve the biocidal properties of coatings using AgNPs due to the preservation of their nanoscale state. Two types of AgNP solutions with fundamentally different stabilization mechanisms were synthesized and compared. Two mechanisms were determined: an aqueous electrostatic mechanism with sodium docusate stabilizer (AOT) and a steric, propylene glycol with polyvinylpyrrolidone (PVP) stabilizer. The results showed that both solutions were unstable and prone to precipitation as early as the first day after synthesis. However, the saturation of the propylene glycol AgNP solution with ammonium hydroxide to pH < 9 allowed the strengthening of the electrostatic factor of aggregative stability, providing optimal conditions for mixing with acrylic dispersions stabilized by anionic surfactants. The obtained AgNPs in the acrylic dispersions stabilized over time, and when they became film-forming, stable AgNPs (~20-30 nm) occurred on the surface. As a result, the developed coatings using AgNPs synthesized in propylene glycol in the presence of non-ionic PVP and modified with ammonium hydroxide, demonstrated a high inactivation of bacteria colony-forming units (CFU) (> 60%) within 60 min of contact compared to aqueous AgNP solutions using anionic surfactants as stabilizers, where the decrease in CFU was around 25%.

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A Block of Thermal Insulation Materials With Protective and Decorative Coatings

Cited by 4 publications

References 6 publications

Los áridos ligeros para los hormigones a base de residuos vegetales

Los áridos ligeros para los hormigones a base de residuos vegetales

Production of Greener High-Strength Concrete Using Russian Quartz Sandstone Mine Waste Aggregates

Creation of Biocidal Coatings using the Stabilization of Silver Nanoparticles in Aqueous Acrylic Dispersions

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