Factors Influencing on Reliability of Composite Ties Used in Large-Panel Housing Construction

Flexible ties from composite materials made of similar initial materials can have significantly different operational characteristics. As a result of tests of composite flexible ties, their physical and chemical characteristics have been determined. It is established that flexible ties with a coiled bundle or with a sand anchor element significantly lose the adhesion strength with concrete (up to 90%) after alkaline impact. Flexible ties with cylindro-conical broadening during the whole operational time losenot more than 9% of the initial adhesion strength and can guarantee the reliability and durability of structures. The technology of production of thermal-efficient wall panels with the use of flexible ties СПА ® 7,5 manufactured at LLc “Biysk factory of glass fibre reinforced plastics” is used at the factories of the Russian Federation, Belorussia, Kazakhstan, Germany, France, and Swiss. For the market of the European Union, a special trade mark for flexible ties – ThermoPin ® has been developed. The general tolerance of construction supervision has been obtained at the testing laboratory Deutsches Institut für Bautechnik, Berlin.

A.G. KOVRIGIN, Engineer, Head of Technical Support Group (This email address is being protected from spambots. You need JavaScript enabled to view it.),
A.V. MASLOV, Engineer,
A.A. VALD,

Deputy Director LLC «Biysk factory of glass fibre reinforced plastics» (60/1, Leningradskaya Street, Biysk, Altay Region, 659316 Russian Federation)

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