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An unreinforced masonry building (or UMB, URM building) is a type of building where load bearing walls, non-load bearing walls or other structures, such as chimneys, are made of brick, cinderblock, tiles, adobe or other masonry material that is not braced by reinforcing material, such as rebar in a concrete or cinderblock. [1]
Oxide jacking has caused concrete spalling on walls of the Herbst Pavilion at Fort Mason Center in San Francisco. The expansive force of rusting, which may be called oxide jacking or rust burst, is a phenomenon that can cause damage to structures made of stone, masonry, concrete or ceramics, and reinforced with metal components.
A worker works under 4 William Circle in Rutland as it is raised above its foundation due to the content of pyrrhotite, a mineral that causes foundation crumbling.
Mortar holding weathered bricks Mortar is a workable paste which hardens to bind building blocks such as stones , bricks , and concrete masonry units , to fill and seal the irregular gaps between them, spread the weight of them evenly, and sometimes to add decorative colours or patterns to masonry walls.
Jeff and Kim Haynes had their home in Rutland, Massachusetts, hoisted six feet into the air to make way for a new foundation after discovering deteriorating concrete in their basement.
Block by Block is a charitable initiative founded as a partnership between Minecraft developer Mojang and the United Nations which aims to encourage young people to get involved in urban regeneration. [1] The scheme uses Minecraft to allow children to rebuild and reimagine their hometowns. [2]
If there are cracks or problems in the actual bricks or stone masonry there could be a larger problem that also needs to be addressed. If there is a larger issue, repointing may cause further damage. If a historic structure needs repointing, building owners usually hire an architectural historian or conservator to help pinpoint the issues. [ 2 ]
A house raised and held on box cribs during foundation work. House raising (also called house lifting, house jacking, barn jacking, building jacking) is the process of separating a building from its foundation and temporarily raising it with hydraulic screw jacks.