Kushnir E. Composite materials reinforced by discrete fibers of organic and mineral origin

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0411U004124

Applicant for

Specialization

  • 05.23.05 - Будівельні матеріали та вироби

09-06-2011

Specialized Academic Board

Д 08.085.01

Prydniprovsk State Academy of Civil Engineering and Architecture, Dnipropetrovs'k, Ukraine

Essay

The object of the investigation: the processes of structurization of fibre-reinforced composite materials on the basis of mineral bindings and impact of discrete fibers of mineral and organic origin and their properties. The purpose of the investigation: development of theoretical principals of composite materials elaboration on the basis of mineral bindings, reinforced with compounds of discrete fibers of mineral and organic origin. The methods of investigation and equipment: Defining of proportions of input materials and new formations were held on the basis of chemical and roentgen-phase, differential and thermal (DT), electron microscopic methods of analyses with the help of DRON-2, derivatograph of system A. Erdeyi, F.Paulik and N.Paulik, electron microscope "Djeol-25js". Theoretical and practical results: it is theoretically reasoned and experimentally proved that physical-mechanical features of composite materials can be boosted by reinforcement of compounds of discrete fibers of mineral and organic origin with high and low coefficients of elasticity; there are developed theoretical considerations about principals of impact of discrete fibers of mineral and organic origin on properties of composite materials on the basis of mineral bindings; and it is first defined the principals of impact of compounds of fibers of organic(polymeric)and mineral origin(fiberglass) on the main properties of composite materials on the basis of mineral bindings; structure functional model of solid is improved due to insertion of gel combination, which allows to explain tensile stress appearance in surface, which is perpendicular to the action of pressing force; we proposed theoretical principals that allow to elaborate proportions of composite materials on the basis of mineral bindings with higher physical-mechanical features owing to reinforcement of compounds of fibers of mineral and organic origin; we defined optimal proportions of fiber-reinforced composite materials on the basis of mineral bindings, reinforced by compounds of polymeric and fiberglass . Implementation Status: the results of dissertation investigations were used during development of TS (Technical specifications) in 24.3-0317123127:2009 of Melitopol' Plant of Reinforced Concrete Structure (PRCS) while production of discrete- reinforced goods on the basis of mineral bindings and while repairing of agricultural objects in Melitopol'. Application field: building sector.

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