Modern strengthening methods for masonry walls

Abstract

The reconstruction and rehabilitation of architectural structures require the application of modern strengthening methods of masonry walls in order to preserve them and increase their bearing capacity. These modern methods of masonry wall strengthening imply the injection (grouting) and strengthening method of applying carbon-fiber mesh. Cracks and holes in masonry walls are seen as a major structural problem of reconstruction. The application of modern grouting is the solution to this problem. The grouting technology causes monolythisation of masonry walls. Mortar injection process fills the cracks and holes caused by external influence or rinsing the existing bonds, as well as the holes created during the process of building those walls. Types of mortar used for wall strengthening and reconstruction are cement mortar, cementless mortar and ready-mixed mortar, depending on a crack itself, its type and position and material of the masonry wall. Carbon-fiber cladding strengthens the masonry walls preparing them for horizontal pressure. Mesh and mortar used for attaching the mesh to masonry walls are specially made to strengthen the masonry walls and are different from carbon-fiber meshes used for concrete wall strengthening. These procedures are the most commonly used modern methods and technical solutions in the field of reconstruction of architectural structures. They are performed in order to provide protection and resistance to horizontal pressure.