Influence of Substrate Characteristics on Behavior of Applied Mortar
Publication: Journal of Materials in Civil Engineering
Volume 30, Issue 10
Abstract
A facade coating that still has wide applicability is mortar render, whether it is made with lime or cement, whether it is a predosed composition or traditionally made in situ, and whether it is applied in new constructions or for rehabilitation purposes. In fact, this type of coating is very versatile, easy to execute, and inexpensive. Whether the characteristics of a mortar are declared by the manufacturer or established by the user, they are normally determined in the laboratory in accordance with the relevant standards using specimens with recommended dimensions. But when applied to real substrates, will these mortars maintain their characteristics, or will the characteristics of the substrate have a significant influence on them? What will this influence be? Will a porous substrate have more or less influence than a nonporous one? The research carried out at the University of Coimbra in collaboration with the University of Porto and the National Laboratory for Civil Engineering (LNEC) set out to answer these questions. To carry out this experimental campaign, three types of substrates and three types of mortars were selected. The different mortars were applied to the different substrates. All the substrates and mortars were characterized before and after application on the substrates. A comparative analysis of the obtained results was made and it was possible to confirm that the substrates influence mortar characteristics and that this influence varies depending on the type of mortar.
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References
ABNT (Associação Brasileira de Normas Técnicas). 2005. Argamassa para assentamento e revestimento de paredes e tetos-Requisitos. ABNT NBR 13281. Rio de Janeiro, Brazil: ABNT.
Aguiar, J. B., and M. D. Cruz. 1998. “A study of the adhesion between hydraulic mortars and concrete.” J. Adhes. Sci. Technol. 12 (11): 1243–1251. https://doi.org/10.1163/156856198X00416.
Braga, M., J. de Brito, and M. R. Veiga. 2014. “Reduction of the cement content in mortars made with fine concrete aggregates.” Mater. Struct. 47 (1–2): 171–182. https://doi.org/10.1617/s11527-013-0053-1.
Carasek, H. 1996. “Mechanisms and intervening factors in the adherence of portland cement based mortars applied on porous substrates.” [In Portuguese.] Ph.D. thesis, Escola Politécnica, Universidade de S. Paulo.
Carasek, H., P. Japiassú, and O. Cascudo. 2014. “Bond between 19th century lime mortars and glazed ceramic tiles.” Constr. Build. Mater. 59 (May): 85–98. https://doi.org/10.1016/j.conbuildmat.2014.02.043.
Carvalho, A. N., Jr. 2005. “Evaluation of the adhesion of mortar coatings: A contribution to the identification of the mechanical adhesion system.” Ph.D. thesis, Curso de Pós-Graduação em Engenharia Metalúrgica e de Minas da Universidade Federal de Minas Gerais.
CEN (European Committee for Standardization). 1998a. Methods of test for mortar for masonry. Part 19: Determination of water vapour permeability of hardened rendering and plastering mortars. EN 1015–19. Brussels, Belgium: CEN.
CEN (European Committee for Standardization). 1998b. Tests for mechanical and physical properties of aggregates. Part 3: Determination of loose bulk density and voids. EN 1097–3. Brussels, Belgium: CEN.
CEN (European Committee for Standardization). 1999a. Methods of test for mortar for masonry. Part 10: Determination of dry bulk density of hardened mortar. EN 1015–10. Brussels, Belgium: CEN.
CEN (European Committee for Standardization). 1999b. Methods of test for mortar for masonry. Part 11: Determination of flexural and compressive strength of hardened mortar. EN 1015–11. Brussels, Belgium: CEN.
CEN (European Committee for Standardization). 2001. Hygrothermal performance of building materials and products—Determination of water vapour transmission properties. EN ISO 12572. Brussels, Belgium: CEN.
CEN (European Committee for Standardization). 2002. Methods of test for mortar for masonry. Determination of water absorption coefficient due to capillary action of hardened mortar. EN 1015–18. Brussels, Belgium: CEN.
CEN (European Committee for Standardization). 2004. Testing concrete. Determination of ultrasonic pulse velocity. EN 12504–4. Brussels, Belgium: CEN.
CEN (European Committee for Standardization). 2006. Natural stone test methods. Determination of real density and apparent density, and of total and open porosity. EN 1936. Brussels, Belgium: CEN.
CEN (European Committee for Standardization). 2012. Tests for geometrical properties of aggregates. Part 1: Determination of particle size distribution—Sieving method. EN 933. Brussels, Belgium: CEN.
Chase, G. W. 1983. “Characterization of the interface between brick and mortar.” Ph.D. thesis, Dept. of Civil, Construction, and Environmental Engineering, Iowa State Univ.
Costa, E. B. 2011. “Adhesion cement-substrate—State of the art.” In Proc., 9th Simpósio Brasileiro de Tecnologia de Argamassas. Belo Horizonte, Brazil.
Goodwin, J. F., and W. H. West. 1982. “A review of the literature on brick/mortar bond.” Proc. Br. Ceram. Soc. 30 (23): 23–37.
ISO. 2002. Hygrothermal performance of building materials and products—Determination of water absorption coefficient by partial immersion. ISO 15148. Brussels, Belgium: ISO.
ISO. 2005. Pore size distribution and porosity of solid materials by mercury porosimetry and gas adsorption. Part 1: Mercury porosimetry. ISO 15901-1. Geneva: ISO.
Kazmierczak, C., D. E. Brezezinski, and D. Collatto. 2007. “Influence of base characteristics on adhesion strength and pore distribution of a mortar.” [In Portuguese.] Estudos tecnológicos 3 (1): 47–58.
Matias, G., P. Faria, and I. Torres. 2014a. “Lime mortars with ceramic wastes: Characterization of components and their influence on the mechanical behavior.” Constr. Build. Mater. 73: 523–534. https://doi.org/10.1016/j.conbuildmat.2014.09.108.
Matias, G., P. Faria, and I. Torres. 2014b. “Lime mortars with heat treated clays and ceramic waste: A review.” Constr. Build. Mater. 73: 125–136. https://doi.org/10.1016/j.conbuildmat.2014.09.028.
McGinley, W. M. 1990. IRA and the flexural bond strength of clay brick masonry, masonry: Components to assemblages, 217–234. ASTM STP 1063. West Conshohocken, PA: ASTM.
Menezes, R. R., G. A. Neves, J. Souza, W. A. Melo, H. S. Ferreira, and H. Ferreira. 2009. “Pozzolanic activity of kaolin beneficiation residues for use in masonry mortars.” [In Portugese.] Revista Brasileira de Engenharia Agrícola e Ambiental 13 (6): 795–801. https://doi.org/10.1590/S1415-43662009000600019.
Meng, B. 1994. “Resolution-dependent characterization of interconnected pore systems: Development and suitability of a new method.” Mater. Struct. 27 (2): 63–70. https://doi.org/10.1007/BF02472823.
Modolo, R., V. Ferreira, L. Tarelho, J. Labrincha, L. Senff, and L. Silva. 2013. “Mortar formulations with bottom ash from biomass combustion.” Constr. Build. Mater. 45: 275–281. https://doi.org/10.1016/j.conbuildmat.2013.03.093.
Moropoulou, A., A. Bakolas, and K. Bisbikou. 2000. “Physico-chemical adhesion and cohesion bonds in joint mortars imparting durability to the historic structures.” Constr. Build. Mater. 14 (1): 35–46. https://doi.org/10.1016/S0950-0618(99)00045-8.
Muller, A. 2010. Evaluation of the adhesion of different types of slab on concrete substrate. Porto Alegre, Brazil: Diploma Work, Departamento de Engenharia da Universidade Federal de Rio Grande do Sul.
Palmer, L. A., and D. A. Parsons. 1934. “A study of the properties of mortars and bricks and their relation to bond.” Bur. Stand. J. Res. 12 (5): 609–644. https://doi.org/10.6028/jres.012.056.
Pierre, M. N. 2008. “Interactions mortier-support: éléments déterminants des performances et de l’adhérence d’un mortier.” Thèse en vue de l’obtention du Doctorat de L’Université de Toulouse. Ecole doctorale: Mécanique Energétique Génie civil Procédés: Unité de recherche: LMDC.
Pipilikaki, P., and M. Beazi-Katsioti. 2009. “The assessment of porosity and pore size distribution of limestone portland cement pastes.” Constr. Build. Mater. 23 (5): 1966–1970. https://doi.org/10.1016/j.conbuildmat.2008.08.028.
Ramos, N. M. M., M. L. Simões, J. M. P. Q. Delgado, and V. P. de Freitas. 2012. “Reliability of the pull-off test for in situ evaluation of adhesion strength.” Constr. Build. Mater. 31 (2012): 86–93. https://doi.org/10.1016/j.conbuildmat.2011.12.097.
Rato, V. 2006. “Influence of morphological microstructure on mortar behavior.” Ph.D. thesis, Civil Engineering, FCT-UNL.
Reda, M. M., and N. G. Shrive. 2000. “Enhancing masonry bond using fly ash.” Masonry Int. J. Br. Masonry Soc. 14 (1): 9–17.
Reda Taha, M. M., and N. G. Shrive. 2001. “The use of pozzolans to improve bond and bond strength.” In Proc., 9th Canadian Masonry Symp. Fredericton, Canada: Univ. of New Brunswick.
RILEM (Réunion Internationale des Laboratoires et Experts des Matériaux, systèmes de construction et ouvrages). 1980. Recommended tests to measure the deterioration of stone and to assess the effectiveness of treatment methods: Evaporation curve. Mater. Struct. 13 (75): 205–207.
Sahu, V., and V. Gayathri. 2014. “The use of fly ash and lime sludge as partial replacement of cement in mortar.” Int. J. Eng. Technol. Innovation 4 (1): 30–37.
Veiga, M. R. 1998. “Behavior of wall coating mortars. Contribution to the study of its resistance to cracking.” Ph.D. thesis, Faculdade de Engenharia da Universidade do Porto.
Veiga, M. R., A. Fragata, A. L. Velosa, A. C. Magalhães, and M. Margalha. 2010. “Lime-based mortars: Viability for use as substitution renders in historical buildings.” Int. J. Archit. Heritage 4 (2): 177–195. https://doi.org/10.1080/15583050902914678.
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Published In
Journal of Materials in Civil Engineering
Volume 30 • Issue 10 • October 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Mar 2, 2017
Accepted: Jan 16, 2018
Published online: Jul 17, 2018
Published in print: Oct 1, 2018
Discussion open until: Dec 17, 2018
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