Split-face block is a type of concrete block with a crack in the center, used for exterior construction and retaining walls. It’s made by combining cement, water, and aggregates, and then split lengthwise or crosswise for a rough texture. It’s available in various colors, textures, and shapes and is commonly used in commercial and institutional building projects.
Also known as a concrete masonry unit, split-face block is a type of concrete block that has an added design element that creates a visually appealing appearance. The texture of a split-face block is somewhat similar to that of cut stone and is distinguished by the presence of a crack in the center of the block. Mostly, these types of blocks are used for the exterior construction of institutional and commercial buildings, as well as exterior retaining walls.
Creating a split-face block begins with combining Portland cement, a certain amount of water, and specific aggregates such as gravel or sand. In addition, additives will also be included in order to give the finished partition block certain characteristics, such as repelling water or retarding erosion due to exposure to the sun and other natural elements. Once the combination of ingredients has been mixed, the blocks are molded into the desired size and shape and then compressed slightly to make the material as dense as possible. At this stage, the split-face block is allowed to cure.
After the split-face block has been cured, the block is split lengthwise or crosswise, depending on the preferred design for the task. This leaves a texture that is rough and somewhat similar to that of partially weathered stone. Aggregates, particularly those introduced as a means of adding color and texture, help achieve the look of the blocks and also provide the finished product with any color shades that have been added to the aggregates by means of additives.
Because it is so easy to tailor the production of a split-face block to the type of building project, the blocks are available in a wide variety of colors, textures and shapes. Many communities contain manufacturing facilities that can make blocks using resources native to the location. This means that the blocks don’t have to be produced in a distant location and shipped to a construction site.
Applications of the split-face block tend to be more in the area of commercial and institutional building projects. These can include building facades, block walls surrounding the property, or even interior walls. There are examples of split faced blocks being used to create municipal buildings, office buildings and even places of worship. Often the blocks are treated to retard erosion from exposure to water or rain.
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