Vol. 20 No. 1 (2021): Revista UIS Ingenierías
Articles

Asphalt emulsion as an alternative to reduce the presence of efflorescence in glue mortars

Hernán Cañola
Institución Universitaria Colegio Mayor de Antioquia
Fidel Granda-Ramírez
Institución Universitaria Colegio Mayor de Antioquia
Joan Arroyave-Rojas
Institución Universitaria Colegio Mayor de Antioquia

Published 2020-11-03

Keywords

  • bituminous additive,
  • efflorescence,
  • hydrophobicity,
  • masonry,
  • glue mortar

How to Cite

Cañola, H., Granda-Ramírez, F., & Arroyave-Rojas, J. (2020). Asphalt emulsion as an alternative to reduce the presence of efflorescence in glue mortars. Revista UIS Ingenierías, 20(1), 103–114. https://doi.org/10.18273/revuin.v20n1-2021009

Abstract

The function of glue mortars is to integrate masonry in rubble work, however, these elements are constantly affected by injuries derived from humidity, such as efflorescence that causes loss of physical properties like the color, the density and the mass due to the superficial outcrop of salts, internal accumulation of salts and superficial detachments; therefore, in this research, the use of asphalt emulsion as a reducer of this condition was studied. According to the analyzes carried out, it was determined that with additions of 10% and 20% the asphalt emulsion a certain level of water repellency is acquired and with additions of 30% and 40% complete hydrophobicity was achieved. Furthermore, it was determined that the asphalt emulsion reduces efflorescence outcrop by 27% with 10% emulsion, 47% with 20% and 100% for samples with 30% and 40% respectively. Although the use of bituminous additives brings certain advantages over the physical properties of mortars, it inversely reduces mechanical properties such as compressive strength.

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