Evaluation of a Tacking Stage for Adherence, between Mortar and Ceramic Brick

Abstract:

The civil construction industrial sector is one of the most important in Brazil both for job opportunity and amount of utilized materials. However, it is also the sector that produces one of the highest volume of waste materials. In fact, it is estimated that total wastes to be around 30% of the raw materials supplied to the constructions. Several factors have been indicated as responsible for this wastage in civil construction, from lack of qualified labor to inappropriate technical procedures. One of the constructive stages, which has been the subject of doubt, is the previous preparation of a crude brick wall to receive a layer of mortar before painting. This previous preparation is known as tacking, which consists of coating the bricks surface with a light mixture of water, cement and sand to improve the mortar adherence. Since the tacking increases the masonry construction cost in approximately 2%, the present work evaluated its necessity. Tests were conducted without and with tack between the bricks and the mortar. The results showed a tendency to increase the adherence with time after tacking.

• Periodical: Materials Science Forum (Volume 869)
• Pages: 121-126
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.869.121
• Online since: August 2016
• Authors: Afonso Rangel Garcez de Azevedo*, Jonas Alexandre, Gustavo de Castro Xavier, Euzébio Barnabé Zanelato, Sergio Neves Monteiro, Carla Bozzi Piazzarollo, Thales Otal Mendonça, Fernando Cesar Coelho França, Fabio de Oliveira Braga
• Keywords: Adherence, Brick, Civil Construction, Mortar, Tack

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