REINFORCEMENT OF DRY FIBERCONCRETE COATINGS

Abstract

high-strength; steelfiber concrete; coating; wear resistance; protection.

In the last two decades, steelfiber concrete has become widely used. Currently, this material is combined with traditional reinforced concrete with continuous reinforcement. The main points of steelfibreconcrete lie on the displaced support due to tension and high viscosity of the structure, fiber fragments provide effective support for opening cracks not only due to consolidation (based on axial for fiber straight), but also support in the transverse direction. The average economical effect of viscous pipe lined with fiber-reinforced concrete is 25458.0 UAH/m. When adding 1 km to the slurry pipeline, the amount will become 25458000 UAH, which provides significant savings in fixed assets for the enterprise. This figure does not account for the cost of downtime associated with the installation of a new pipe and the dismantling of the old one, as well as repairs to the slurry pipeline, which take up many hours during the operation of the pipe. The use of wear-resistant lining allows you to significantly increase the service life of the pipeline, especially pipelines operating in difficult conditions at high speeds up to 30 m/s and particle sizes up to 4 mm, abrasive rocks, and elevated temperatures up to 1200 °C. Due to their strength properties, products made using fiberconcrete lining (lined pipes, bends, tees, crosses, gutters) can withstand loads significantly exceeding 5 MPa and therefore can be widely used to protect equipment from abrasive wear, exposure to aggressive environments and high temperatures, which is confirmed by many years of experience in operating such products in various industries, ensuring an increase in the service life of equipment by 2…6 times.

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