Evaluación de la reactividad árido-álcali en diversos áridos silicatadosalternativas para minimizar esta reacción

  1. Martín, A. 1
  2. Gadea Sainz, Jesús 1
  3. Campos de la Fuente, Pablo Luis 1
  4. Calderón Carpintero, Verónica 1
  5. García Calleja, Miguel Ángel 2
  6. A. Rodríguez 1
  1. 1 Departamento de Construcciones Arquitectónicas e Ingeniería de la Construcción y del Terreno. Escuela Politécnica Superior.Universidad de Burgos, Burgos
  2. 2 Laboratorio Central de Estructuras y Materiales (CEDEX), Madrid
Revista:
Estudios geológicos

ISSN: 0367-0449

Año de publicación: 2010

Volumen: 66

Número: 1

Páginas: 99-103

Tipo: Artículo

DOI: 10.3989/EGEOL.40143.095 DIALNET GOOGLE SCHOLAR lock_openAcceso abierto editor

Otras publicaciones en: Estudios geológicos

Resumen

Siliceous aggregates are characterized for presenting certain chemical reactivity opposite to the calcium hydroxide liberated in the hydration of the Portland cement. The consequence of this reaction between the aggregate and the components of the intermediate concrete phase is the formation of gels very eager for water that can generate important disruptive pressures in the deeper structure of concrete. We have assessed the potential reactivity of several siliceous aggregates (granites, gneiss, hornfels, quartzite and serpentine) by means of the accelerated method in concrete bars (normalized method) and the superficial reactivity method, observing by scanning electron microscopy (SEM) the formation of silica calcium alkaline gels. On the other hand, we explore the way of minimizing this disruptive reaction employing ground clay bricks and cement type CEM IV UNE-EN 197-1.

Referencias bibliográficas

  • Ben Haha, M.; Gallucci, E.; Guidoum, A. & Scrivener, K.L. (2007). Relation of expansion due to alkali silica reaction to the degree of reaction measured by SEM image analysis. Cement and Concrete Research, 37: 1206-1214. doi:10.1016/j.cemconres.2007.04.016
  • Berube, M.A. (2002). Laboratory assessment of alkali contribution by aggregates to concrete and application to concrete structures affected by alkali-silica reactivity Cement and Concrete Research, 32: 1215-1227. doi:10.1016/S0008-8846(02)00766-4
  • Gavrilenko, E.; García del Amo, D.; Calvo Pérez, B. & García García, E. (2007). Comparison of ASR-gels in concretes against accelerated mortar bar test samples. Magazine of Concrete Research, 59: 483-494. doi:10.1680/macr.2007.59.7.483
  • Hobbs, D.W. (1988). Alkali-silica reaction in concrete. Ed. Thomas Telford, London, 192 págs.
  • Leemann, A. & Holzer. L. (2005). Alkali-aggregate reaction. Identifying reactive silicates in complex aggregates by ESEM observation of dissolution features. Cement and Concrete Composites, 27: 796-801. doi:10.1016/j.cemconcomp.2005.03.007
  • Li, X.H. & Gress. D.L. (2006). Mitigating alkali-silica reaction in concrete containing recycled concrete aggregate. Transportation Research Record, 1979: 30-35. doi:10.3141/1979-06
  • Mather, B. (1999). How to make concrete that will not suffer deleterious alkali-silica reaction. Cement and Concrete Research, 29: 1277-1280. doi:10.1016/S0008-8846(98)00240-3
  • Menéndez, E. & Soriano, J. (2007). Procesos expansivos del hormigón: ensayos árido-álcali, ataque por sulfatos, hielo deshielo. Sistemas de prevención y actuaciones. Curso de Estudios Mayores de la Construcción, 17 edición. Instituto Eduardo Torroja, CSIC, Madrid.
  • Chrest, A.P.; Brown, R.; Breeze, P.C.; Clarke, J.L.F.; D’arcy, T.J.; Durning, T.; Eddy, D.B.; Gami, S.S.; Iverson, P.J.; Magnesio, C.; Meinheit, D.F.; Nadeau, F.A.; Peterson, C.A.; Rear, K.; Schupack, M. & Walker, H.C. (1994). Alkali-aggregate reactivity: a summary. PCI Journal, 39: 26-35.
  • Soriano, J. (1980). Influencia de la naturaleza mineralógica de adiciones en el comportamiento de la pasta endurecida de cemento Portland. Revista de Obras Públicas, 127: 861-867.
  • Soriano, J. (1996). Aplicación del MEB al estudio de materiales de construcción. En: Microscopía electrónica de barrido y microanálisis por rayos X (Aballe, M.; López-Ruiz, J.; Badía, J.M. & Adeva, P., eds.), Ed. Rueda, Madrid, 111-111.
  • Stanton, T.E. (1948). Correlation of laboratory tests with field experiences of excessive concrete expansion induced by a reaction between the cement and aggregate. Proceedings American Society for Testing and Materials, 48: 1057-1066.
  • Thomas, M.D.A.; Hooton, R.D. & and Rogers. C.A. (1997). Prevention of damage due to alkali-aggregate reaction (AAR) in concrete construction. Canadian approach. Cement Concrete and Aggregates, 19: 26-30. doi:10.1520/CCA10018J
  • Turanli, L.; Bektas, F. & Monteiro, P.J.M. (2003). Use of ground clay brick as a pozzolanic material to reduce the alkali-silica reaction. Cement and Concrete Research, 33: 1539-1542. doi:10.1016/S0008-8846(03)00101-7
Fuente de los datos: Dialnet