1/14/2024 0 Comments Aluminum window detail on cmu![]() Aluminum in contact with plain concrete can corrode, and the situation is worse if the concrete contains calcium chloride as an admixture or if the aluminum is in contact with a dissimilar metal.Įnsuring a good quality installation of aluminum-framed windows and doors includes proper material selection and correct construction practices. The pH of fresh mortar ranges from 12 to 13. In fresh concrete, aluminum reacts principally with alkali hydroxides from cement. This article provides guidance for protecting aluminum frames from mortar used in masonry walls. However, unprotected aluminum interacts with cement-based materials, sometimes resulting in severe frame damage. ![]() Inset shows a close-up of a joint filled with caulk between the frame and masonry wall.Īrchitectural aluminum is widely used for window and door frames because it is attractive, durable, and requires little maintenance (see Fig. ![]() Aluminum frames make attractive windows and doors in masonry buildings.
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