Structural and thermal insulation compositions based on polyethylene foams waste

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Resumo

A structural and thermal insulation material was development with the simultaneous utilisation of two man–made materials – fluorohydrite (waste of hydrofluoric acid production) and polyethylene foam production waste. It is shown that the combination of these two wastes allows to create the material with the compressive strength of 4.2 MPa and the thermal conductivity of 0.131 W/m oC at the average density of 1560 kg/m3 at the polyethylene foam crumbs optimal consumption of 300 l/m3. In addition, given the presence of a kind of damper in the composition of the material in the form of polyethylene foam, the products acquire increased frost resistance in building structures. Application of this material will allow increasing fire safety of building structures, improving their vapour and gas permeability, reducing production costs and simultaneously solving the problems of fluorohydrite and polyethylene foam production waste disposal.

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Sobre autores

G. Yakovlev

Kalashnikov Izhevsk State Technical University

Autor responsável pela correspondência
Email: gyakov@istu.ru

Doctor of Sciences (Engineering), Professor

Rússia, 7, Studencheskaya Street, Izhevsk, 426069

Z. Angelich

Kalashnikov Izhevsk State Technical University

Email: zarinasaidova@mail.ru

Candidate of Sciences (Engineering), Docent

Rússia, 7, Studencheskaya Street, Izhevsk, 426069

A. Buryanov

National Research Moscow State University of Civil Engineering

Email: rga-service@mail.ru

Doctor of Sciences (Engineering), Professor

Rússia, 26, Yaroslavskoe Highway, Moscow, 129337

Yu. Ginchitskaya

Kalashnikov Izhevsk State Technical University

Email: yula_yuka@mail.ru

Candidate of Sciences (Engineering), Docent

Rússia, 7, Studencheskaya Street, Izhevsk, 426069

V. Ukraintseva

Kalashnikov Izhevsk State Technical University

Email: venemara@mail.ru

Master, Postgraduate Student

Rússia, 7, Studencheskaya Street, Izhevsk, 426069

V. Yukhnin

Kalashnikov Izhevsk State Technical University

Email: vlad.yuhnin@yandex.ru

Student

Rússia, 7, Studencheskaya Street, Izhevsk, 426069

K. Bykov

Kalashnikov Izhevsk State Technical University

Email: bykov6a@yandex.ru

Student

Rússia, 7, Studencheskaya Street, Izhevsk, 426069

A. Budaev

East Siberia State University of Technology and Management

Email: 393-420@mail.ru

Postgraduate Student

Rússia, 40V, bldg. 1, Klyuchevskaya Street, Ulan-Ude, 670013, Republic of Buryatia

Bibliografia

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2. Fig. 1. External appearance: a – waste polyethylene foam; b – crushed polyethylene foam; c – pore size in polyethylene foam at 200× magnification

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3. Fig. 2. General view of fluoroanhydrite (a) and macrostructure of fluoroanhydrite powder (b) at 200× magnification

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4. Fig. 3. X-ray diffraction pattern of acid fluoride

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5. Fig. 4. Микроструктура кристаллогидратных новообразований в фтоангидритовой матрице: игольчатые (a) и призматические (b) кристаллы двуводного гипса, (c) – пакетные кристаллы двуводного гипсав фторангидритовой матрице

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6. Fig. 5. Microstructure of crystal hydrate columnar formations in a fluoroanhydrite matrix: (a) – general view, (b) – lamellar structure of dihydrate gypsum in columnar formations

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7. Fig. 6. Macrostructure of a chip of heat-insulating material based on crushed waste of polyethylene foam and fluoroanhydrite containing polyethylene foam: a – 300 l/m3; b – 700 l/m3; c – a fragment of the interphase layer at the point of contact of the fluoroanhydrite matrix and crushed polyethylene foam at 50× magnification

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8. Fig. 7. Samples 100×100×80, formed using a fluoroanhydrite matrix and crushed polyethylene foam

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