// Rosatom / NIIgrafit NIIgrafite news Shareholders and Investors Science and education Products Testing center Contacts Subsections * Siliconized graphite * Fine grained graphite * Anti-friction materials * Carbon materials for medicine * Carbon Fibers and Fabrics * Composites * EPAN * Fullerenes (C-plus) * Construction Projects Department DEPARTMENT OF CONSTRUCTION PROJECTS EXTERNAL REINFORCEMENT SYSTEM The external reinforcement system is designed to strengthen and repair the load-bearing structures of buildings and structures. External reinforcement allows :  eliminate design errors and execution of works  eliminate the consequences of damage to load-bearing structures that have arisen during operation  increase the bearing capacity with increasing various loads SEISMIC REINFORCEMENT WITH COMPOSITE MATERIALS Experimental fragments were subjected to dynamic loads equivalent to seismic impacts with intensity from 3 to 9.5 points on the MSK-64 scale. Technical solution • Carbon fiber has high tensile strength and modulus of elasticity; • High adhesion characteristics of the epoxy compound provide reliable bonding of carbon fiber to any surface; • CFRP has increased resistance to aggressive environments, is inert and corrosive. Materials for external reinforcement system FIBARM FibArm Tape Carbon Tapes and Fabrics • Universal for all types of structures; • Optimal for solving most problems; • Convenient to use BLAST CEMENTATION OF PRIMERS The organization possesses technologies and equipment for a wide range of works involving jet grouting of soils (Jet 1, Jet 2, Jet 3). The essence of the technology lies in the destruction of the soil by a jet of liquid. • The jet flows out of the nozzles of a special device - a monitor located at the bottom of the drill string just behind the drill bit. • Diameter of nozzles is 1.6-3.5 mm. • The number of nozzles in the monitor is 2-6 pcs. PILOT IMMERSION METHOD In conditions of dense urban development, it is necessary to use vibration-free pile driving technology. One of the methods is the immersion of the piles by indentation. Для погружения свай квадратного и круглого сечений в диапазоне от 300Х300 мм до 500Х500 мм и Ø 250-500 мм соответственно, используется высокопроизводительная гидравлическая копровая установка. Установка работает со сваей длиной от 3 до 14 м обеспечивает несущую способность до 320 тонн. Максимальная скорость погружения 6,7 м/мин. Видео https://yadi.sk/i/rXzW_UQK3Mott9 ПОЛИМЕРНЫЕ КОМПОЗИТНЫЕ МАТЕРИАЛЫ Главное преимущество полимерных композитных материалов (ПКМ) - это уникальное сочетание свойств дерева, металла, полимера. Композит очень прочный, низкотеплопроводный, устойчив к агрессивным средам и резким перепадам температуры, био-, влага-, атмосферостойкий Малые грунтозасыпные арочные мосты с композито-бетонными несущими элементами The structure is a filling arched bridge with the main load-bearing elements made in the form of pipe-concrete elements with a polymer composite shell. PCM sheet pile Advantages of PCM sheet piling durability (operation without repair up to 100 years), including in aggressive groundwater; • independence of work from weather conditions; • ease of transportation and installation due to low weight and special fastening system; • low weight and thickness of the tongue structure; • shorter construction time compared to driving a steel sheet pile; • work safety; • easy dismantling of sheet piling walls• for reuse; • high fire-fighting qualities; • aesthetics of the type of structures. Progress 8 (495) 665-70-03 niigrafit@niigrafit.org JSC "NIIgrafit", 2012-2016