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What is efflorescence?

efflorescence
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What is efflorescence?

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Anything made with cement is susceptible to frost or efflorescence. Whether its concrete blocks and the mortar used to hold them in place, segmental retaining wall units, concrete roofing tiles or pavers, even poured concrete for roads, sidewalks, patios, or driveways, efflorescence may happen. The good news is that we know how and why efflorescence occurs. The bad news is that efflorescence is almost impossible to prevent. The silver lining is that efflorescence eventually goes away. Efflorescence comes from within the concrete itself. All concrete products contain cement, and cement inherently contains lime. To make a concrete product, in addition to cement, a manufacturer adds specific amounts of other raw materials including sand, rock, water, chemical admixtures and pigments. These materials are mixed together then poured or molded into a specific shape. After all this happens, the material sits or cures for a period of time. Although the concrete product is solid and useable afte

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Efflorescence is the naturally occurring chemical reaction where the free lime in concrete reacts with the atmosphere and water to produce Calcium Carbonate (CaCO3). This is a temporary surface discoloration common to all concrete products. It is in no way detrimental to the overall quality or function of the roof tile. Gambale produces a specially dense tile to avoid efflorescence occurrences.

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Efflorescence is a deposit of white crystals that can sometimes appear on the surface of the concrete. It does not, in any way, compromise the functionality of the product. With rain, and time, efflorescence will disappear. Any further questions please feel free to Contact Us and one of our representatives will complete your request.

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It appears as a whitish haze or film on the concrete product ( usually pavers), and appears soon after installation or over time. The product is not defective. The condition will usually correct itself with time and exposure to the elements. There are cleaners available to remove efflorescence.

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Efflorescence is a hardened crystalline deposit of salts, which migrate from the center of concrete or masonry to the surface to form insoluble calcium carbonates that harden on the surface. Given time these deposits form much like how a stalactite takes shape in a cave except on a flat surface. Efflorescence usually appears white, gray or black depending on the region. THE PROBLEM WITH EFFLORESCENCE Over a period of time efflorescence begins to negatively affect the overall appearance of masonry/concrete and may cause the surfaces to become slippery when exposed to moisture. If left unchecked, this efflorescence will harden whereby the calcium/lime deposits begin to affect the integrity of the cementatious surface by slowly eroding away the cement paste and aggregate. In some cases it will also discolor stained or coated surfaces. Efflorescence forms more quickly in areas that are exposed to excessive amounts of moisture such as near pool decks, spas, and fountains or where irrigation

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