Mechanical and Physical Study of Concrete Substitutes with Silica Powder Exposed in Simulated Aggressive Environment
Journal: Journal of Building Technology DOI: 10.32629/jbt.v5i2.1262
Abstract
The purpose of this research is to evaluate the performance of standardized cylindrical specimens in simulated exposure environments by immersing them in a 3% NaCl solution. The physical and mechanical evaluation was performed on reinforced cylindrical specimens of 30 cm high and 15 cm in diameter. The specimens are made of concrete with partial replacement of the cement by silica doses in 10% and 15%, with water cement ratio of 0.45 and 0.65 and a design strength of 250 kgf/cm². Settlement tests, porosity, capillary absorption and mechanical resistance were performed in a period of 5 months, and the influence of silica powder substitution in concrete mixtures on the standard mixture was analyzed. It was found that the mechanical strength increased compared to the design strength, with an a/c ratio of 0.45 and 0.65. Compared with the design strength, the mechanical strength of the substitute mixture reached an acceptable value. As for the porosity and capillary absorption tests, they were not satisfactory for any relation to a/c, probably due to lack of curing prior to exposure.
Keywords
aggressive environment; substituted concrete; silica powder; compression resistance
Full Text
PDF - Viewed/Downloaded: 0 TimesReferences
[1] M. A. Olavarrieta, A. J. Giménez, M. Y. Dikdan, H. Bolognini, Evaluación de mezclas de concreto con sustitución parcial del cemento y del agregado fino. Tecnología alternativa durable y sustentable, Universidad Centroccidental Lisandro Alvarado, Decanato de Ingeniería Civil, Venezuela, CDCHT Código N° 004-IC-2015, 2015.
[2] L. Escalona, H. Gallegos, M. A. Olavarrieta, Evaluación de la durabilidad de concretos sustituidos por dosis de polvo de sílice expuestos en ambiente marino simulado, Trabajo Especial de Grado, Universidad Centroccidental Lisandro Alvarado, Decanato de Ingeniería Civil, Venezuela, 2017.
[3] Fondonorma, NORMA VENEZOLANA COVENIN 1618-1998 NTF 4015-2012 Concreto Durabilidad, Venezuela, 2012.
[4] M. A. Olavarrieta, E. Anzola, Aseguramiento de la Calidad, para construís y mantener Edificaciones Habitacionales de Concreto Armado, expuestas en ambientes marinos, Trabajo Especial de Grado, Universidad Centroccidental Lisandro Alvarado, Decanato de Ingeniería Civil, Venezuela, 2007.
[5] American Concrete Institute, A.C.I. 234R-06: Guide for the Use of Silica Fume in Concrete (Reapproved 2012), EUA, 2012.
[6] A. Nausha, U. Anees Malik, A. Shahreer, F. S. Mujahed, Corrosion Protection Performance of Microsilica Added Concretes in NaCl and Seawater Environments, Research & Development Center, Saline Water Conversion Corporation, EUA, 1999.
[7] American Society of Testing Materials (A.S.T.M.), Normas para el cemento Portland (C150 - 05) 2007.
[8] R. S. Ravindrarajah, A. S. Khan, M. Pathmasiri, Properties of high-strength high-performance concrete for marine environment, Proceedings of the International Conference on Concrete in Marine Environment, Hanoi, Vietnam, 2002.
[9] M. Farouk, Performance of Portland cement mixes containing silica fume and mixed with lime-water, HBRC Journal, V 10, (3), p.p. 247-257, 2014.
[10] G. Forero, N. Meléndez, M. A, Olavarrieta, H. Bolognini, Evaluación de la durabilidad del concreto con sustitución parcial del cemento por polvo de sílice en ambiente acelerado, Trabajo Especial de Grado. Universidad Centroccidental Lisandro Alvarado, Decanato de Ingeniería Civil, Venezuela, 2016.
[11] R. Hernández Sampieri, C. Collado, P. Lucio, Metodología de la Investigación, ISBN 968-422-931-3McGraw Hill Interamericana de México, 1991.
[12] British Standart Institution: BS Methods of testing concrete: Method for determination of water absorption, BS 1881. Pat 122, 1983.
[13] O. Troconis, A. Romero, C. Andrade, P. Helene y I. Díaz, Durabilidad de la Armadura, Manual de Inspección, Evaluación y Diagnóstico de Corrosión en Estructuras de Hormigón Armado DURAR. Red Temática XV.B., CYTED ISBN 980-296-541-3. Subprograma XV, Corrosión: Impacto Ambiental sobre Materiales, Maracaibo, Venezuela, 1997.
[14] ASTM C642-97, Standard Test Method for Density, Absorption, and Voids in Hardened Concrete, ASTM International, West Conshohocken, PA, 1997.
[15] Comisión Venezolana de Normas Industriales COVENIN 339:1994, Método para la medición del Asentamiento con el Cono de Abrams, Fondonorma, Caracas Venezuela, 1994.
[2] L. Escalona, H. Gallegos, M. A. Olavarrieta, Evaluación de la durabilidad de concretos sustituidos por dosis de polvo de sílice expuestos en ambiente marino simulado, Trabajo Especial de Grado, Universidad Centroccidental Lisandro Alvarado, Decanato de Ingeniería Civil, Venezuela, 2017.
[3] Fondonorma, NORMA VENEZOLANA COVENIN 1618-1998 NTF 4015-2012 Concreto Durabilidad, Venezuela, 2012.
[4] M. A. Olavarrieta, E. Anzola, Aseguramiento de la Calidad, para construís y mantener Edificaciones Habitacionales de Concreto Armado, expuestas en ambientes marinos, Trabajo Especial de Grado, Universidad Centroccidental Lisandro Alvarado, Decanato de Ingeniería Civil, Venezuela, 2007.
[5] American Concrete Institute, A.C.I. 234R-06: Guide for the Use of Silica Fume in Concrete (Reapproved 2012), EUA, 2012.
[6] A. Nausha, U. Anees Malik, A. Shahreer, F. S. Mujahed, Corrosion Protection Performance of Microsilica Added Concretes in NaCl and Seawater Environments, Research & Development Center, Saline Water Conversion Corporation, EUA, 1999.
[7] American Society of Testing Materials (A.S.T.M.), Normas para el cemento Portland (C150 - 05) 2007.
[8] R. S. Ravindrarajah, A. S. Khan, M. Pathmasiri, Properties of high-strength high-performance concrete for marine environment, Proceedings of the International Conference on Concrete in Marine Environment, Hanoi, Vietnam, 2002.
[9] M. Farouk, Performance of Portland cement mixes containing silica fume and mixed with lime-water, HBRC Journal, V 10, (3), p.p. 247-257, 2014.
[10] G. Forero, N. Meléndez, M. A, Olavarrieta, H. Bolognini, Evaluación de la durabilidad del concreto con sustitución parcial del cemento por polvo de sílice en ambiente acelerado, Trabajo Especial de Grado. Universidad Centroccidental Lisandro Alvarado, Decanato de Ingeniería Civil, Venezuela, 2016.
[11] R. Hernández Sampieri, C. Collado, P. Lucio, Metodología de la Investigación, ISBN 968-422-931-3McGraw Hill Interamericana de México, 1991.
[12] British Standart Institution: BS Methods of testing concrete: Method for determination of water absorption, BS 1881. Pat 122, 1983.
[13] O. Troconis, A. Romero, C. Andrade, P. Helene y I. Díaz, Durabilidad de la Armadura, Manual de Inspección, Evaluación y Diagnóstico de Corrosión en Estructuras de Hormigón Armado DURAR. Red Temática XV.B., CYTED ISBN 980-296-541-3. Subprograma XV, Corrosión: Impacto Ambiental sobre Materiales, Maracaibo, Venezuela, 1997.
[14] ASTM C642-97, Standard Test Method for Density, Absorption, and Voids in Hardened Concrete, ASTM International, West Conshohocken, PA, 1997.
[15] Comisión Venezolana de Normas Industriales COVENIN 339:1994, Método para la medición del Asentamiento con el Cono de Abrams, Fondonorma, Caracas Venezuela, 1994.
Copyright © 2023 Alejandro Giménez, María Alice Olavarrieta, Luisana Silva, Hernán Gallegos
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License