Characteristics and propierties of oil-well cements additioned with blast furnace slag


  • R. Sánchez Departamento de Ingeniería Metalúrgica. ESIQIE IPN Zacatenco
  • M. Palacios Institute of Building Materials, ETH Zurich - Instituto de Ciencias de la Construcción Eduardo Torroja (IETcc-CSIC)
  • F. Puertas Instituto de Ciencias de la Construcción Eduardo Torroja (IETcc-CSIC)



alkali activation, blast furnace slag, hydration, microstructure, oil-well cements


The present paper addresses the alkali activation of Portland cements containing blast furnace slag (20 and 30% of the cement by weight) with a view to the possible use of these materials in oil well construction. The hydration studies conducted showed that in cement/slag blends, the sodium silicate activating solution partially inhibited the dissolution of the silicate phases in the Portland cement, retarding cement hydration and reducing the precipitation of reaction products. Due to such partial inhibition, the cement/slag blends had significantly lower mechanical strength than Portland cements hydrated with water. 29Si and 27Al MAS NMR and BSE/EDX studies, in turn, showed that the C-S-H gel forming in the alkali-activated cement/slag pastes contained Al in tetrahedral positions and low Ca/Si ratios.


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How to Cite

Sánchez, R., Palacios, M., & Puertas, F. (2011). Characteristics and propierties of oil-well cements additioned with blast furnace slag. Materiales De Construcción, 61(302), 185–211.



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