Effective ways to reduce leaching and formation of efflorescence on structures

Abstract

Corrosion of the first kind (leaching) is the process of dissolution and removal to the surface of the structure of calcium hydroxide salts mainly under the action of a constant diffuse flow of water through a multi-level porous structure of the concrete composite. Technological methods to prevent the formation and reduction of efflorescence (leaching) when used in practice, improve durability of building structures and reduce operating costs. The paper explores the possibility of reduction or complete elimination of efflorescence on the surface of building structures due to the impact on calcium hydroxide in the composition of the Portland cement. © 2019 IOP Publishing Ltd. All rights reserved.