Abstract
An analysis of the main causes of efflorescence in brickwork in the Aral Sea region is presented. It was found that as a result of alternate wetting and drying of building material, during which crystallization of salts occurs in the pores of the material, the formation of polywater crystalline hydrates with volume growth of volumes surpassing the volume of the pores in the material results in the appearance of pressure that destroys the building material. The external signs of salt corrosion are peeling and chipping of ceramic bricks. The particulars of the formation of efflorescence in ceramic bricks under the conditions extent in the Aral Sea region are indicated.
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