Use of geonics scientific positions for designing of building composites for protective (fortification) structures

Федюк, Роман; Yevdokimova, Yu G.; Smoliakov, A K; Stoyushko, N Yu; Lesovik, Valery

doi:10.1088/1757-899x/221/1/012011

Cited by 43 publications

(21 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The increase in surface area does not lead to further increase in strength, or to its reduction. It is caused by excessive number of fine particles since the limit of the superplasticizing agent was reached as was studied earlier [13]. Such behavior was also typical for the change of compound viscosity when the surface area of particles exceeded 600 m 2 /kg.…”

Section: Resultsmentioning

confidence: 70%

Increasing Impact Endurance of Fiber Concrete

Lesovik¹,

Mochalov²,

Fediuk³

et al. 2018

Proceedings of the International Symposium “Engineering and Earth Sciences: Applied and Fundamental Research” (ISEES 2018)

View full text Add to dashboard Cite

The study covers the optimization of physical and mechanical properties and operational characteristics of fiber concrete that include complex influence of a binding agent on structure formation. The optimal composition of concrete ensuring the maximum static and dynamic strength was selected (impact endurance increases 6 times). It was revealed that the concrete with minor defects, high packing density, high fillercement stone adhesion ratio, increased ratio of static tensile strength against static compression strength Rt/Rcom and plasticity is characterized by the best resistance to dynamic loads. The penetration test on reinforced and fiber concrete plates showed that unreinforced concrete samples were completely destroyed while fiber concrete samples demonstrated their through penetration under the striker load.

show abstract

Section: Resultsmentioning

confidence: 70%

Increasing Impact Endurance of Fiber Concrete

Lesovik¹,

Mochalov²,

Fediuk³

et al. 2018

Proceedings of the International Symposium “Engineering and Earth Sciences: Applied and Fundamental Research” (ISEES 2018)

View full text Add to dashboard Cite

show abstract

“…The implementation of theoretical concepts and a systematic approach to solve problems within the framework of geonics (geomimetics), allowed us to develop a methodological basis for creating effective building composites [1][2][3]. So, today, scientists are faced with the task of developing composite materials with improved heat engineering and acoustic parameters [4][5][6][7].…”

Section: Resultsmentioning

confidence: 99%

Effective Nature-Like Structural Thermal Insulation and Acoustic Composites Based on Technogenic Raw Materials

Lesovik¹,

Puchka²,

Володченко³

et al. 2018

Proceedings of the International Symposium “Engineering and Earth Sciences: Applied and Fundamental Research” (ISEES 2018)

View full text Add to dashboard Cite

One of the most important problems of our time is the creation of fundamentally new, technological solutions in the field of energy saving, rational nature management, creation of environmentally friendly production of composite building materials, which corresponds to the current trends in the development of "nature-like" technologies that can not disrupt the ecology and the environment; maintain a balance between biosphere "and" technosphere". This paper shows that due to the use of natural and technogenic raw materials of various genesis, it is possible to create nature-like building composites of various functional purposes (structural heat insulating, heat insulating, acoustic, etc.). These composites are supposed to protect people from the effects of the environment, ensuring them a comfortable and safe existence: a favorable acoustic and thermal-moisture regime, environmental safety, and other comfort systems.

show abstract

“…Based on the results of studies of composite materials by scientists from different countries, it was found that the combined use of TiO 2 and SiO 2 has a positive effect on the properties of titanium dioxide, increasing the temperature of the phase transition of anatase to rutile [ 21 ]. The resulting materials are characterized by increased photocatalytic activity, assessed by the degree of the degradation of pollutants and an increased degree of surface hydrophilicity, which facilitates the removal of decomposition products from the composite surface with water.…”

Section: Introductionmentioning

confidence: 99%

Obtaining and Properties of a Photocatalytic Composite Material of the “SiO2–TiO2” System Based on Various Types of Silica Raw Materials

et al. 2021

View full text Add to dashboard Cite

Compositions and technology for obtaining a photocatalytic composite material (PCM) by deposition of titanium dioxide particles synthesized by the sol–gel method on a silica support of various types (microsilica, gaize and diatomite) have been developed. The properties (chemical and mineral composition, dispersion, specific surface area, porosity, ζ-potential, acid–base properties, and microstructure) of microsilica, gaize and diatomite were studied to assess the effectiveness of using a photocatalytic agent as a carrier. In terms of specific viscosity (ηsp = 45), the concentration of the precursor (tetrabutoxytitanium—TBT) is set at 22 vol. % in a solvent (ethanol), at which it is possible to obtain the maximum amount of dissolved film oligomer without the formation of an aggregate-like precipitate. Modification of the reaction mixture (precursor: ethanol = 1:3) by replacing part of the solvent with a Span-60 surfactant/TBT = 1–1.1 made it possible to obtain polydisperse titanium dioxide particles with peak sizes of 43 nm and 690 nm according to laser granulometry data. Taking into account the interaction of titanium complexes with the surface of a silica support, a phenomenological model of the processes of structure formation of a photocatalytic composite material is proposed. By the value of the decomposition of rhodamine B, the photocatalytic activity of the developed composite materials was determined: PCM based on diatomite—86%; PCM based on microsilica—85%; PCM based on gaize—57%.

show abstract

Use of geonics scientific positions for designing of building composites for protective (fortification) structures

Cited by 43 publications

References 7 publications

Increasing Impact Endurance of Fiber Concrete

Increasing Impact Endurance of Fiber Concrete

Effective Nature-Like Structural Thermal Insulation and Acoustic Composites Based on Technogenic Raw Materials

Obtaining and Properties of a Photocatalytic Composite Material of the “SiO2–TiO2” System Based on Various Types of Silica Raw Materials

Contact Info

Product

Resources

About