Vol 1, No 13 (2013)
- Year: 2013
- Published: 01.07.2013
- Articles: 10
- URL: https://ogarev-online.ru/2311-2468/issue/view/19430
Full Issue
A study of composite materials based on inorganic cements with biocidal preparation «teflex disinfecting» inclusion
Abstract
The tests has confirmed high biocidal properties and wide effect range of the preparation «Teflex Disinfecting». The preparation adding in quantity of ≥1 % provides the cement stone with fungicidal properties and makes gypsum materials fungi-resistant. It has also been proved that the preparation in quantity of 1 % has a minimal effect on the building materials durability. The admixture has a plasticizing effect and does not increase the composites water absorption. All this proves its potential to provide bioprotection of building composites.
Biodamages and protection of polymeric materials and products
Abstract
The biodamaging process includes many aspects, when dealing with polymeric materials and products. Therefore the problem of polymeric building materials' protection can be successfully solved only in the course of a complex research aimed at studying their biodegradation features. The study results will enable us to select the proper preparations that increase the polymeric materials' bioresistance but do not have a toxicologic effect on human health as well as do not degrade the physicomechanical and operational properties of the materials in question.
A study of strength of composites based on bioproof cements
Abstract
The article proves the efficiency of Na2SO4 modifying admixture incorporation into cement composites. Thus the stength of cement structures increases from 18% to 35 %. The admixture in quantity of 2,5 % and 5 % incorporation leads to occurrence in cements fungi-resistant and fungicidal properties. Consequently, the authors draw a conclusion on the admixture prospective use and appropriateness of its further studies.
Water requirement and adhesion of composites based on modified cements
Abstract
The article considers Na2SO4 incorporation into cement composites. The admixture increases the cements' resistance to biological excited environments as well as demonstrates a positive dynamics of some their basic physicomechanical properties. The study shows that incorporation of the admixture in quantity of 5 % leads to 32 % increase in adhesion in comparison with the control structure. The study results prove the necessity and appropriateness of further expolorations of new biocidal materials.
Biodegradation of polymeric materials and products
Abstract
The article proves the necesssity of complex experimental and theoretical studies of biological resistance of polymeric composites (finishing and sanitary-engineering). Particularly, the authors main goal is to reveal the mechanism of the composites' biological destruction. The new methods and techniques will make it possible to produce bioproof polymeric materials that provide durability and minimize danger to human health.
Bioproofness of building composites based on modified cements
Abstract
The authors have proved the efficiency and biocidal properties of Na2SO4 application for building materials. Particulalry, Portland cement-based building materials were modified by the preparation. The modified materials have showed a considerable filamentous fungi resistance under the real operation conditions. Consequently, the authors have obtained fungi- resistant and fungicidal composites suitable for plastering various surfaces.
A study of filled soil-concrete composites
Abstract
The authors have studied soil-concrete composites filled with sand, claydite, and wood sawdust. Particularly, the biological resistance of soil-concrete composites with various structures was tested. Along with the tests of composites' resistance to metabolite environments, the authors made an assessement of their resistance to filamentous fungi influence.
Durability of cement composites in simulated excited environments of bacterial origin
Abstract
Considering the tests' results, the authors draw a conclusion on the increased durability of composites made by using the contact-condensation solidification technique in comparison with the traditional materials. Possessing low porosity, high durability and smaller permeability for excited environments, building products based on the new materials can successfully be used for anticorrosive protection of structures operating under the condition of bacteria metabolism products' influence.
Admixture «Teflex Antimould» effect on properties of composite materials based on inorganic cements
Abstract
The tests have proved the biocidal properties of the admixture «Teflex Antimould». Particulalrly, cement and gypsum composites become fungi-resistant. The samples demonstrated that the preparation reduces their water absorption and has a plasticizing effect on them. The preparation also increases the composites' density and durability. The study has shown that the maximal water resistance and durability can be reached at the admixture in quantity of 3 % in a cement.
Biocidal preparation «Teflex Antisalt» effect on properties of building composites based on inorganic cements
Abstract
The study has confirmed the biocidal properties of the admixture «Teflex Antisalt». Particularly, the cement stone and gypsum materials have obtained fungi-resistant properties. It has also been found out that the admixture's incorporation has a plasticizing effect on cements. The preparation reduces water absorption of cement and gypsum composites. The admixture increases the durability of gypsum-based materials.