The Use of Foamed Ethylene Vinyl Acetate in Connections of Elements of Building Structures

In housing and civil, industrial and road construction, a serious problem is the reliable execution of technological and deformation joints in structures. Foamed ethylene vinyl acetate (EVA) due to its high tensility and tensile strength provides a reliable arrangement of deformation joints and dowels, which is confirmed by the construction and repair of a variety of underground structures, as well as operated roofs, parking lots and other structures. It is noted that the physical-mechanical and physical-chemical characteristics of EVA vary significantly depending on the content of vinyl acetate monomer (in the range of 10–40%). With the increase in the content of vinyl acetate, the resistance of EVA to technical lubricants, motor oils, gasoline, solvents and acids with a high concentration increases that makes it possible to recommend their use at oil refineries, for sewage facilities, chemical industry, etc. EVA dowels are successfully used as seals when installing door and window blocks on balconies and terraces to provide not only waterproofing protection, but also sound and thermal insulation. The possibility of using foamed EVA for the manufacture of special inserts sealing the inputs of utilities in the premises through the enclosing structures, including underground ones, is shown. Such inserts can be installed in the formwork of the walls before their construction, or in the opening organized in the existing structure. In the body of the inserts, grooves (cavities) are provided for the subsequent injection of a hydro-active polyurethane resin into them. This solution provides long-term reliable waterproofing of inputs.

A.N. DAVIDUK¹, Doctor of Sciences (Engineering) Director
D.I. KRAVCHENKO², Director
S.V. NIKOLAEV³, Doctor of Sciences (Engineering), Head of Research (This email address is being protected from spambots. You need JavaScript enabled to view it.)
A.I. SERDYUK², Engineer
Yu.G. KHAYUTIN², Doctor of Sciences (Engineering)
A.K. SHREIBER³, Doctor of Sciences (Engineering)
B.V PRYKIN⁴, Doctor of Sciences (Engineering)

¹ Research Institute of Concrete and Reinforced Concrete named after A.A. Gvozdev, JSC Research Center of Construction (NIIZHB) (6, 2nd Institutskaya Street, Moscow, 109428, Russian Federation)
² OOO “IPC InterAkva” (5, bldg.1, Sevanskaya Street, 127463, Moscow, Russian Federation)
³ JSC “TSNIIEP zhilishcha” – Institute for Complex Design of Residential and Public Buildings (JSC “TSNIIEP zhilishcha”) (9, bldg. 3, Dmitrovskoye Shosse, Moscow, 127434, Russian Federation)
⁴ National Research Moscow State University of Civil Engineering (26, Yaroslavskoe Highway, Moscow, 129337, Russian Federation)

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