What is the chemical formula for common efflorescent salts?

Oct 14, 2020 ... Efflorescence is caused when soluble salts and other water soluble minerals are dissolved within a hard cementicious or masonry substrate. Efflorescence refers to the unsightly, chalky, deposit that can be found on the surface of concrete, brickwork, pavers, or other masonry. What Causes Efflorescence? · The masonry structure must contain water-dispersible minerals. · There must be sufficient moisture present to liquefy those minerals. When water is added to Portland cement in the mixer, a chemical reaction called hydration occurs. Cement hydration is what causes concrete to harden and gain ... The bottom row has also shows soluble salts (SOLU test). Soluble salts on a porcelain mug are causing plucking. This picture has its own page with more detail, ... Feb 28, 2019 ... Efflorescence: What causes it and how can it be controlled? · Whitening of the Pavers: Moisture in the solvent-based sealer, improper sealing ... Sand and gravel, in their natural state, may or may not have been associated with salt bearing water or soil. If they have, and these salts are not removed by ... In depth article coverings the causes of Effloresence as well as the solutions for repair. Aug 7, 2020 ... What causes Efflorescence? A combination of three factors cause efflorescence: Soluble salts present in cementitious mortars, i.e. ... Mar 16, 2018 ... Secondary Efflorescence: This can occur at any time but is more likely to be the cause of recurring efflorescence, which can signify a problem.