Том 2, № 4 (2014)
- Жылы: 2014
- ##issue.datePublished##: 15.02.2014
- Мақалалар: 10
- URL: https://ogarev-online.ru/2311-2468/issue/view/19353
Бүкіл шығарылым
Biocidal preparation “Teflex Protection for metal” effects on properties of building composites based on inorganic cements
Аннотация
The tests have proved the biocidal properties of the admixture “Teflex Protection for metal”. Thus, the admixture introduction in quantity of ≥1 % makes a cement stone fungi resistant, while its increase to ≥7,5 % provides the composite with fungicidity. For plaster composites the increase of biostability is reached at the preparation introduction in concentration of ≥5 %. Moreover, the admixture shows a plasticizing effect that reduces water requirement and water absorption of plaster materials.
Properties of building composites based on modified cements
Аннотация
The tests have proved the ability of NaSO4 to modify the basic physical and mechanical properties of cement composites. In this connection, for effective practical use of composites with biocidal additives, it seems necessary to consider their properties’ changes both at structure selection and while in service.
Inorganic cement-based building composites modified by biocidal admixture “Teflex industrial”
Аннотация
The study has proved high biocidal properties and wide efficiency range of the admixture “Teflex industrial”. The tests demonstrated the admixture power to make cement and plaster composites fungi resistant. Moreover, the solidified composites showed a decrease of water requirement and an increase in density and water absorption reduction. The increase in toughness of cement composites enables us to recommend the admixture for bioprotection of building composites.
A study of inorganic cement-based composites modified by biocidal admixture “Teflex restorer”
Аннотация
The tests have proved biocidal properties of the admixture “Teflex Restorer”. Particularly, the properties showed in making cement stone fungi resistant. The admixture has a plasticizing effect on plaster composites as well as reduces their water absorption. The density of cement composites increases. As a result, their toughness in the process of hardening improves up to 26–40 % in comparison with the control composites.
A study of toughness of modified cement composites in biological excited environments
Аннотация
The article presents a study of anhydrous Na2SO4 effects on cement composites’ toughness under the conditions of biological excited environments. The test showed that the additive introduction in quantity of 5 % into the structure of cements improves toughness of the resulting composites. Considering fungicidal properties of the composites, the study proves the expediency of their practical use.
Biological corrosion of polymeric building materials
Аннотация
The article considers the prospects of substances oppressing or destroying bad microflora introduction into the structure of polymeric building materials. In this connection, it is necessary to carry out a series of complex research studies of the materials’ biocorrosion. The study results should be proved in a number of experiments that will show the most effective modifying additives.
The effects of vinylester composites’ components on compressibility indexes
Аннотация
The article considers the results of optimizing of the curing system components in vinylester composites. In this connection, the authors present a complex symmetric three-tiered plan of the second order. Consequently, the study shows the composite structures based on vinylester resin that demonstrate the required indexes of relative compressibility and ultimate relative compressibility.
The effects of structural components on toughness indexes of vinylester composites
Аннотация
The article considers the results of optimization of vinylester composites’ structures. In this connection, the authors present a complex symmetric three-tiered plan of the second order. The study showed the composite components that demonstrate high flexural and compressive toughness.
A study of the effects of vinylester composites’ components on deformability indexes
Аннотация
The article considers optimizing of the curing system components of vinylester composites. The authors present a complex symmetric three-tiered plan of the second order. Consequently, the study showed the composite structures based on vinylester resin that demonstrate the required modulus of elasticity and deformation.
The effects of biocidal admixture “Teflex” on epoxide-based building composites
Аннотация
The study has proved biocidal properties of the admixture "Teflex". Thus, the composites based on epoxide resin demonstrated fungicidal properties after the admixture introduction. The tests showed the admixture ability to reduce water absorption of the samples. The admixture application increases the composites’ density and toughness. Particularly, the full density, higher water resistance and toughness of the composites is reached at the admixture maintenance of 3 %.