VIBRATION EXTRUSION OF FLAT FIBER-REINFORCED CONCRETE PRODUCTS WITH MAINLY LONGITUDINAL ORIENTATION OF FIBERS

• Main Authors: Ігор Анатолійович Андреєв, Євгеній Миколайович Гайдін
• Format: Article
• Language: English
• Published: Igor Sikorsky Kyiv Polytechnic Institute 2018-11-01
• Series: Вісник Національного технічного університету України «Київський політехнічний інститут імені Ігоря Сікорського»: Серія «Хімічна інженерія, екологія та ресурсозбереження»
• Subjects: віброекструзія; фібробетон; орієнтація фібр
• Online Access: http://chemengine.kpi.ua/article/view/143345

For the production of high-quality fiber-reinforced concrete slabs, the authors proposed a new design of the vibration extruder with a guide device in the form of a deltoid. The improved device allows the use of fibrous concrete mixes of different compositions, thus achieving mainly longitudinal orientation of fibers throughout the product. The technique of calculating the degree of orientation of fibers during the flow of fibro concrete mix in the channel of the vibration extruder bunker and in the finished flat product is proposed. The influence of the geometry of the forming channel on the location of the disperse fittings in the product is determined. The program was developed and the results of calculating the location of fibers in a flat plate with a thickness of 40 mm are given. The results of the work are supposed to be used when designing a new vibration extrusion equipment for the manufacture of fiber-reinforced concrete products.