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Lower-density blocks may use industrial wastes, such as fly ash or bottom ash, as an aggregate. They also have an added decorative effect to certain types of block, such as split-face, due to their distinct red and black colors. In the western United States, where they are easily obtainable, porous lava rock gravels are used for weight reduction. portland cement and aggregate, usually sand and fine gravel, for high-density blocks). Composition Ĭoncrete blocks are made from cast concrete (e.g. Ĭlinker blocks use clinker (ash created as a waste product from impurities in minerals such as coal, limestone and iron-ore), also called slag. In Australia, they are often known as besser blocks (because the Besser Company was a major supplier of machines that made concrete blocks), and also as grey blocks or concrete masonry units (CMUs). However in the United States breeze blocks also refer specifically to decorative blocks used on exterior walls to allow the breeze through, which were an important feature of Mid-Century Modern design. They are also known as "breeze blocks", a term derived from "breeze", referring to the small cinders and cinder-dust that are by created partially burned coal. Those that use cinders ( fly ash or bottom ash) as an aggregate material are called "cinder blocks" in the United States. The use of blockwork allows structures to be built in the traditional masonry style with layers (or courses) of staggered blocks.Ĭoncrete blocks may be produced with hollow centers (cores) to reduce weight, improve insulation and provide an interconnected void into which concrete can be poured to solidify the entire wall after it is built.Ĭoncrete blocks are some of the most versatile building products available because of the wide variety of appearances that can be achieved using them. For the song by Alt-J, see Breezeblocks (song) A pallet of "8-inch" concrete blocks An interior wall of painted concrete blocks Concrete masonry blocks A building constructed with concrete masonry blocksĪ concrete block, also known as a cinder block in North American English, breeze block in British English, concrete masonry unit ( CMU), or by various other terms, is a standard-size rectangular block used in building construction. For the British TV series, see Breeze Block (TV series). Not only do the two mixtures repel water from within the concrete, but the mortar admixture enhances the bond between the mortar and the blocks, reducing areas in the wall system for water to penetrate."Breeze block" redirects here. This complete system includes two water-repellent admixtures for masonry construction using concrete. Their wall system achieves higher R-values than conventional masonry, without a significant effect on its structural integrity.ĭRY-BLOCK is an integral water repellant specifically for concrete mortar and blocks.
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The manufacturer preinstalls the EPS insulation insert into the Hi-R Wall System before it gets delivered to a job site. Professionals use them for single cavity wall and wythe construction.
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Today, you can find tens of millions of their popular units in place around the world.īoth of these inserts are made with expandable polystyrene, individually molded, and designed to fit standard two masonry units, including six-, eight-, 10-, and 12-inch widths. Proudfoot has worked with engineers and architects since 1965, controlling noise levels on various projects by incorporating its SOUNDBLOX products. This brand leads the industry in noise control and acoustical correction. Our collection of joint reinforcement products from Hohmann & Barnard, Inc has proven its place in masonry wall construction because of its long-proven history of superior performance. Our inventory of masonry blocks come in a wide array of shapes and sizes, and we have special masonry units available for fire and water resistance applications. We have an up-to-date and efficient manufacturing facility producing consistent, high-quality masonry units that meet or exceed specifications. Our brand manufactures various Standard Masonry Units and Architectural CMUs to meet our customers’ construction and design needs. Concrete Masonry Units by Hi-Way Concrete Products, Inc