Reinforcement for cement- and steel-based structures

Abstract

The invention describes a new way of stabilizing concrete and cement-based materials and steel. The stabilization is carried out by reinforcement with the help of fiber-stabilized stone bars or stone slabs. The stone can be a natural stone or an artificial stone, the temperature expansion coefficient of which lies between that of the materials to be joined, that is, between the coefficient of the respective fiber and that of the respective cement-based building material, such as concrete or steel. The stone becomes the balancing link between fibers and concrete or steel, which have different temperature expansion behavior. This enables long-fiber stabilized concrete structures to be used to replace, among other things, CO2-intensive steel and to make building materials CO2-negative if the fiber has bound carbon during production, as is the case with natural fibers and carbon fibers produced from CO2. The stone preferably has a non-linear geometry and/or surface when the frictional connection between stone and concrete or cement is to be optimized. In the case of stabilization of steel, plates or strips of stone-carbon are preferably glued to the steel. This can preferably be done with epoxy resins. If the stabilizer is in the form of rods of a wave shape, the elongation of the long fiber is made possible during expansion, which considerably improves the adaptation of the very different expansion coefficients of carbon fibers and concrete or steel.

Dependencies are inferred from the claim text.