Use of a biological additive to enhance the physical-mechanical and thermal properties of concrete
DOI:
https://doi.org/10.17533/udea.redin.343263Keywords:
bioreinforcement, porosimetry, thermal conductivity, calcific bacteria, durabilityAbstract
The effect of the addition of a biological ingredient composed primarily of calcific bacteria (T. ferroxidans, T. thioxidans, Desulfovibrio and Sulfolobus acidularios) on the properties of concrete is studied. The biological additive was synthesized based on native cultures in a nutritive medium (modified 9K medium), 2.5 ≤ pH ≤ 3.0, at room temperature in a 30 L bioreactor. Cylinders of concrete containing 30, 60, and 100% of the biological additive were prepared using different aging times (7 and 28 days) in order to determine the technical feasibility of the mixture. The mixture of concrete was prepared using a cement to sand to gravel ratio of 1:2,3:3 and a water to cement ratio of 0.56:1. The sample without biological additive was used as the reference. The main findings are: an increase of 17.2% in resistance was observed in the sample with 30% biological additive (14.63 ± 2.11 MPa and 15.17 ± 0.85 MPa at 7 and 28 days, respectively); the percentage of pores and their diameter decreased by 39% and 46%, respectively, in the sample with 30% biological additive (porosity: 0.91%, pore diameter: 144.7 µm); thermal conductivity decreased in all samples containing the biological additive (the best behavior was obtained in the sample with 30% biological which displayed a 50% reduction in thermal conductivity: 0.33W/m K); Durability to nitric acid indicates that weight lose was larger for the reference probe than
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R. Santhosh K. et al. “Remediation of concrete using micro-organisms”. ACI Materials Journal. Vol. 98. N.o 1. 2001. pp. 3-9.
P. Lanoy. “Bacterias en las rocas”. Revista Muy Interesante. Vol. 9. N.o 99. 1993. pp. 60-63.
F. Lemarchand. “Un ‘lifting’ bacteriano contra el envejecimiento de las piedras”. Revista Mundo Científico. Vol. 15. N.o 160. 1995. p. 779.
Programa integrado para la mejora de los suburbios, Medellín, Colombia, Germán D. Gómez V. En: http://habitat.aq.upm.es/dubai/00/bp540.html. Consultada el 5 de junio de 2005.
M. González M., N. Ben O. and M. Arias J. “Biomineralización: revisión de algunos de sus aspectos mas destacados”. Ars Pharmaceutica. Granada. Vol. 37. N.o 3. 1996. pp. 483-518.
´[6] Instituto Colombiano de Normas Técnicas. N.os 32, 78, 110, 112, 117, 118, 119, 120, 121, 184, 220, 221, 224, 225, 385, 396, 397, 454, 489, 490, 491, 550, 663, 861, 890, 1.085, 1.299, 1.377, 1.513, 1.977, 4.025. Bogotá D. C. 1992.
¨[7] American Society for Testing and Materials. N.os C-177, C-217, C-241, C-457, C-642. Philadelphia. 1987.p.
K. Simkiss and K. M. Wilbur. Biomineralization, cell biology and mineral deposition. Academic press, Inc. San Diego, California. 1989. p.
H. A. Lowenstan and S. Weiner. Biomineralization. Oxford University Press. New York. 1989. p. 324.
D. Jones and M. J. Wilson. Biomineralization in crustose lichens. Clarendon Press Oxford. 1986. pp. 91-105.
Propiedades mecánicas del hormigón. http://www.construir.com/CIRSOC/DOCUMENT/datos3.htm. Consultada el 8 de octubre 2003.
J. F. Mesa H. Caracterización de poros en carbones tratados térmicamente empleando técnicas de procesamiento digital de imágenes y microscopia asistida por computador. Notas del profesor. Laboratorio de metalografía. Universidad Nacional de Colombia sede Medellín. Medellín. 2000.
B.V. Karlekar. Transferencia de Calor. Madrid. 2.a ed. McGraw-Hill. 1994. p. 10.
G. W. DePuy. “Chapter 26: Chemical Resistance of Concrete”. Significance of Tests and Properties of Concrete and Concrete-Making Materials. ASTM STP 169C. American Society for Testing and Materials. Philadelphia, PA. 1994. pp. 263-281.
E. Hincapié Atehortúa y S. Moreno Rojas. Patologías de las fachadas revestidas en piedra arenisca, esquisto y mármol en la ciudad de Medellín. Trabajo Dirigido de Grado Ingeniería Civil. Universidad Nacional de Colombia sede Medellín. Medellín. 2001. p. 80.
O. Giraldo Bolívar. Guía práctica para el diseño de mezclas de hormigón. Universidad Nacional de Colombia sede Medellín. Medellín. 1993. p. 30.
J. C. Pérez R. y Juan F. Ramírez. Biolixiviación aplicada a un material aurífero refractario. Trabajo de Grado para optar al título de ingeniero químico. Universidad Nacional de Colombia sede Medellín. Facultad de Ingeniería. Medellín. 1998. p. 50.
C. R. López. Características mecánicas del hormigón armado. En: http://fing.uncu.edu.ar/catedras/archivos/hormigon_i/MATERIALES.pdf. Consultada el 10 de enero de 2002.
A. Demain y N. Solomon. “Manual of Industrial Microbiology and Biotechnology”. American Society for Microbiology. Washington D. C. 1986. pp. 18-20.
Vitrocerámicos. http://www.unan/.mx/publicaciones/ciencia-unanalgoritmo.pdf. Consultada el 6 de enero de 2003.
Jarosita, Thiobacillus Ferroxidans. http://www.unmsm.edu.pe/biology/reunion/7r-bt01.htm. Consultada el 10 de enero 2002.
J. I. Ruiz M. y D. A. Jiménez C. Bio-refuerzo de hormigón. Trabajo de grado para optar al título de ingeniero químico. Universidad de Antioquia, Facultad de Ingeniería. Departamento de Ingeniería Química. Medellín. 2003. p. 45.
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