PSI - Issue 17

Ana Isabel Marques et al. / Procedia Structural Integrity 17 (2019) 1002–1009 Ana Isabel Marques / Structural Integrity Procedia 00 (2019) 000–000

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5. Conclusions

Based on the data collected from this experimental campaign, static and dynamic E results for the cement wall coating mortar compositions tested are well within their expectable ranges. These results suggest that the proposed static E experimental methodology is valid and generates usable and good quality data. This new experimental methodology also solves some of the major experimental issues related with previous attempts on the subject. Regarding the ratios between static and dynamic E values, the obtained data provides initial values for the tested cement coating mortar compositions. These values can be used in studies where the specific coating mortar compositions presented here are used, but can also be applied in other studies where information regarding the specific coating mortar composition is unavailable, such as in old buildings rehabilitation studies. Veiga, M. R., 2000. Influence of Application Conditions on the Cracking Susceptibility of Renderings. RILEM Publications S.A:R.L., Concrete Science and Engineering, vol 2, p. 134-140. Veiga, M. R., Stefanidou, M., Balksten, K., Alvarez, I., Nunes, C., Theoridoridid, M., Faria, P., Papayianni, I., van Hees, R., 2019. Durability of lime based renders: a review of some degradation mechanisms and assessment test methods. SMSS19 Rovinj,. RILEM SMSS Proceedings. RILEM Publications SARL. Tamin, P. F., 1986. Étude du comportement mécanique des revêtements de façade. Enduits. Thèse de doctorat. Paris, Ècole Nationale des Ponts et Chaussées (ENPC). Mehta, P. K., Monteiro, P. J. M., 2001. Concrete: microstructure, properties and materials, McGraw-Hill, DOI: 10.1036/0071462899. Farinha, C., Brito, J., Veiga, M. R., 2015. Incorporation of fine sanitary ware aggregates in coating mortars. Construction and Building Materials, 83, p. 194–206. Damas, A.L., Veiga, M.R., Faria, P., Santos Silva, A., 2018. Characterisation of old azulejos setting mortars: a contribution to the conservation of this type of coatings. Construction and Building Materials, 171, p 128-139. EN 1015-3:1999/A2, 2006. Methods of test for mortar for masonry, Part 3: Determination of consistence of fresh mortar (by flow table), European Committee for Standardization. EN 1015-11:1999/A1, 2006. Methods of test for mortar for masonry, Part 11: Determination of flexural and compressive strength of hardened mortar, European Committee for Standardization. EN 14146:2004, 2004. Natural stone test methods. Determination of the dynamic modulus of elasticity (by measuring the fundamental resonance frequency), European Committee for Standardization. EN 12504-4:2004, 2004. Testing concrete. Part 4: Determination of ultrasonic pulse velocity, European Committee for Standardization. Cikrle, P., Adámek, J., Stehlik, M., 2005. Ultrasonic testing of properties of mortars. Structural Analysis of Historical Constructions, 5, p. 407 412. Popovics, J. S., Zemajtis, J., Shkolnik, I., 2008. A study of static and dynamic modulus of elasticity of concrete. ACI-CRC Final Report. Rosell, J.R., Pérez, F., Cantalapiedra, I., 2012. Simple Method of Dynamic Young’s Modulus Determination in Lime and Cement Mortars. ISO 6784:1982, 1982. Concrete – Determination of static modulus of elasticity in compression, International Organization for Standardization. Veiga, M. R., Fragata, A., Velosa, A. L., Magalhães, A. C., Margalha, G., 2010. Lime-Based Mortars: Viability for use as Substitution Renders in Historical Buildings, International Journal of Architectural Heritage, 4, p. 177–195. Veiga, M. R., 2017. Air lime mortars: What else do we need to know to apply them in conservation and rehabilitation interventions? A review. Construction and Building Material, 157, p.132–140. Marques, A., Morais, J., Santos, C., Morais, P., Santos, D., Veiga, M. R., 2019. Determination of Mortars's Elastic Modulus through Dynamic Methods, 2º Congresso de Ensaios e Experimentação em Engenharia Civil, Porto, Portugal. References