REINFORCING ELEMENT OF SYNTHETIC MATERIAL FOR USE IN REINFORCED CONCRETE, MORE PARTICULARLY PRESTRESSED CONCRETE, REINFORCED CONCRETE PROVIDED WITH SUCH REINFORCING ELEMENTS, AND PROCESSES OF MANUFACTURING REINFORCING ELEMENTS, AND REINFORCED AND PRESTRESSED CONCRETE

摘要

The invention relates to reinforced concrete, more particularly prestressed concrete, including at least one reinforcing element formed by a matrix based on a thermosetting synthetic material in which preferably more than 150000 practically parallel continuous filaments are obtained. The filaments are formed from an organic polymer selected from the group of aromatic polyamides, such as polyparaphenylene terephthalamide, or from polyethylene, polyvinyl alcohol or polyacrylonitrile via solvent spinning. The matrix is formed from a synthetic material based on epoxy resin and/or bismaleimide resin. The reinforcing element has an improved resistance to alkali.