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 Concrete masonry has experienced one of the most remarkable growths of any modern building material. Concrete masonry makes up more than two-thirds of the masonry in walls being built today. This popularity is a result of its adaptability to all types of buildings. From its modest beginning, when concrete masonry was generally restricted to simple and unassuming structures, it is now used in apartment buildings, schools, churches, office commercial and industrial buildings, warehouses, and wherever beauty, firesafety, economy, and durability are essential. The use of exposed concrete masonry for finer types of buildings has opened up new fields of construction to the masonry craft. Masons are quick to recognize the opportunities offered by working with this modern building material. Largely responsible for the popularity of concrete block construction is the careful attention given to good workmanship in building structurally sound, clean, straight walls. For further information on concrete, visit the National Concrete Masonry Association (NCMA). Source: PCA, Portland Cement Association, Recommended Practices for Laying Concrete Block.
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