Buildings Materials & Structures Based on Advanced Polymer Nanostructured Matrix

Development of manufacture of linear diene oligomers belonging to a liquid rubbers class with viscous liquids consistence allowed to create a new class of conglomerate polymer composite materials - rubber concrete (RubCon®). Rubber concrete is the advanced constructional material created for last years. It is polymer concrete with a unique set of physical-mechanical, chemical and technological properties which allow to obtain highly effective building structures and products on its basis.

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INFLUENCE OF TECHNOLOGICAL PARAMETERS ON CHARACTERISTICS OF POLYMER COMPOSITE MATERIALS IN AUTOMATED LAYUP OF PREPREGS (review)

Proceedings of VIAM ◽

10.18577/2307-6046-2021-0-6-46-55 ◽

2021 ◽

pp. 46-55

Author(s):

P.N. Timoshkov ◽

◽

V.A. Goncharov ◽

M.N. Usacheva ◽

A.V. Khrulkov ◽

...

Keyword(s):

Composite Materials ◽

Polymer Composite ◽

Polymer Composite Materials ◽

Technological Properties ◽

Technological Parameters ◽

Technological Factors ◽

Rolling Pressure ◽

Material Temperature

The main technological factors when using ATL and AFP technologies are material temperature, laying speed, rolling pressure and no deviation from the required laying trajectory. The article discusses the influence of technological factors on some characteristics of polymer composite materials. The optimum laying temperature should provide the required adhesion. The rate of laying should provide heating of the material without its technological properties. The rolling pressure during laying should ensure optimal porosity and thickness of the material.

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ENDURANCE OF CARCASS TYPE POLYMER COMPOSITE MATERIALS AT DEFORMATION JOINTS OF BRIDGE STRUCTURE’S ELEMENTS

Construction and Geotechnics ◽

10.15593/2224-9826/2020.3.03 ◽

2020 ◽

Vol 11 (3) ◽

pp. 29-40

Author(s):

B. A Bondarev ◽

A. O Korneeva ◽

O. O Korneev ◽

A. G Saakyan ◽

I. A Vostrikov

Keyword(s):

Composite Materials ◽

Polymer Composite ◽

Building Materials ◽

Polymer Composite Materials ◽

Matrix Composition ◽

Polymer Concrete ◽

Asymmetry Coefficient ◽

Cycle Asymmetry ◽

Cyclic Durability ◽

Endurance Tests

Numerous studies of road surfaces in the areas of deformation joints of bridges and overpasses have shown that the use of polymer composite materials can significantly reduce cracks and destruction. The cyclic durability of such materials prevents rutting in the zone of deformation seams, due to their damping properties. Effective building materials based on furfural acetone monomers (FAM) are used for the manufacture of tides that experience cyclic impacts of vehicle wheels. Therefore, tests were conducted on the endurance of FAM polymer concrete under the influence of cyclic application of load. Today cyclic and static durability of traditional FAM polymer concretes has been studied in detail. However, the carcass technology can improve the characteristics of polymer concrete, in particular, reduce shrinkage. These polymer concretes are produced in two stages. First, a carcass is created from the filler grains glued together, and then the voids are filled with a matrix composition. This article presents the results of endurance tests of polymer concrete made using carcass and traditional technologies, with the same set of raw materials. To determine the limit of endurance, we used the method of planning an experiment with the construction of an orthogonal-composite plan of the second order. The cycle asymmetry coefficient and loading level (as a percentage of the destruction load) were selected as variable factors affecting the cyclic durability. Lines of fatigue strength of traditional polymer concrete FAM and obtained by carcass manufacturing technology at different values of the cycle asymmetry coefficient are also constructed. The results of endurance tests under the influence of repeated application of load showed that the polymer composite material based on furfural acetone monomer, obtained by carcass technology, has an increased cyclic durability compared to traditional polymer concrete.

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Strengthening Building Structures with Polymer Composite Materials

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.265.91 ◽

2017 ◽

Vol 265 ◽

pp. 91-96 ◽

Cited By ~ 1

Author(s):

I.A. Mayatskaya ◽

A.E. Fedchenko ◽

D.B. Demchenko

Keyword(s):

Reinforced Concrete ◽

Composite Materials ◽

Polymer Composite ◽

High Strength Concrete ◽

Polymeric Materials ◽

High Strength ◽

Polymer Composite Materials ◽

Reinforced Concrete Structures ◽

Building Structures ◽

New Methods

One of the work cycles of reinforced concrete structures is the state of repair and reconstruction, including the steps of strengthening elements. The traditional types of strengthening of reinforced concrete which are steel and concrete collars and shirts - now are receding into the background. New methods of strengthening with modern materials such as lamellae are increasingly being used. The article deals with the issues related to strengthening the structures made of high-strength concrete using composite polymeric materials.

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Polyurethane filled with modified basalt fiber

Butlerov Communications ◽

10.37952/roi-jbc-01/20-63-7-111 ◽

2020 ◽

Vol 63 (7) ◽

pp. 111-118

Author(s):

Elena A. Kiyanenko ◽

◽

Artur D. Nurislamov ◽

Ksenia V. Golovanova ◽

Gulnara I. Amerkhanova ◽

...

Keyword(s):

Composite Materials ◽

Polymer Composite ◽

Polymer Matrix ◽

Glass Fibers ◽

Basalt Fiber ◽

Polymer Composite Materials ◽

Building Structures ◽

Polyurethane Dispersion ◽

Water Based ◽

Reinforcing Filler

The use of basalt fiber as a reinforcing filler is mainly used instead of glass fibers due to its unique properties. Basalt fiber in comparison with glass has a 10-22% greater modulus, higher absolute strength after exposure to 400 °C, superior to glass in alkali and especially acid resistance, approximately identical in water resistance, i.e. close in properties to high-modulus glass fibers. However, it is most often used as a filler for concrete and other building structures. There is much less information about its use as a polymer reinforcing filler. The polymer matrix for creating polymer composite materials is most often epoxy resins, less often polyester. At the same time, there is practically no data on polyurethanes that have a unique combination of high strength indicators with elasticity and hardness, resistance to solvents and aggressive media, abrasion resistance, etc. The use of basalt fiber as a filler that increases the strength characteristics of polyurethanes and gives them specific properties can significantly expand the scope of their application. In this regard, this study attempts to use crushed basalt fiber as a reinforcing filler for polyurethanes. In order to increase the adhesion of the polymer matrix – filler system, an adhesive based on water-based polyurethane dispersion is used. Samples were obtained based on a polyurethane binder filled with basalt fiber in amounts up to 10.0 % by weight, treated with water-polyurethane dispersion with a concentration of 10 to 20 % by weight. The best complex of strength properties is provided by polyurethanes filled with basalt fiber in the amount of 1.0% by weight, treated with 15 % by weight water-based polyurethane dispersion. At the same time, the tensile strength increased by 15% compared to the same filling without processing and by 50% compared to the unfilled analog and amounted to 33.7 MPa. These changes are explained by a more uniform distribution of crushed basalt fiber in the polymer matrix and an increase in the adhesion interaction of fiber-adhesive-polymer matrix due to the biphilicity of the adhesive, as well as the same (polyurethane) nature of the adhesive and the matrix. The developed polymer composite materials have high hydrolytic resistance, as well as resistance to acetone and hexane. At the same time, the greatest degree of swelling did not exceed 0.9 % of the mass.

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