![]() All concrete block walls must rest on solid concrete poured concrete foundation. Nearly all walls built with CMUs share the same elements, but the implementation of these elements can differ considerably depending on the wall’s scale, shape, and use. Often available for special applications are many other types, such as bullnose blocks with one rounded end, jamb blocks with an indentation where window and door jams match, partition blocks used to create partition walls, and lintel blocks used to create window and door headers.Īrchitectural masonry units are also available which have textured faces built for decorative use. Cap units-thin, solid concrete block used to cover the open cavities at the top of a concrete block wall.Sash units-have slots cut in flat ends these are used around window and door openings to provide expansion space.Often used when blocks are stacks to create vertical pillars. Double corner unit-has two squared-off ends.Used at the ends of walls where the end of the block is exposed. ![]() Single corner unit-has one squared-off end.Used in the middle of walls where both ends are covered by adjoining blocks. Stretcher unit-has a flange extension on both ends.This is to accommodate the thickness of the blocks of mortar joints.Ĭoncrete block also comes in many shape configurations. Real concrete block sizes are marginally smaller than the theoretical sizes, by around 3/8 inches in each dimension. Common sizes and shapes of concrete block include: Or they may replace the sand and gravel aggregate with lighter-weight industrial waste products, such as fly ash or coal cinders, in which case they are commonly known as cinder blocks.ĬMUs have many applications in the construction industry, ranging from use of foundation walls to support framed buildings, to exposed building exterior walls, to standing landscape walls and retaining walls.Ĭoncrete block and cinder block come in several different sizes and shapes to fit different applications. Such hollow-core blocks of conventional sand and gravel aggregate kept together with Portland cement can be made from regular concrete. The residential and commercial building industries make extensive use of a type of concrete building material, officially known as a concrete masonry unit (CMU).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |