Mechanical properties and absorption of chlorides in alkali activated slag concrete and exposed to carbonation

Authors

  • William Aperador Chaparro Militar University of New Granada
  • David Martinez Bastidas CENIM-National Centre for Metallurgical Research
  • Jorge Hernando Bautista-Ruiz Francisco de Paula Santander University

DOI:

https://doi.org/10.17533/udea.redin.12479

Keywords:

alkali-activated slag concrete, Portland concrete, carbonation, compressive strength, permeable voids, absorption, chloride permeability, granulated blast-furnace slag

Abstract

This paper presents an experimental study on the durability properties of carbonated alkali-activated slag (AAS) concrete. An ordinary Portland cement (OPC) was also tested for comparative purposes. The durability properties were studied through the measurements of compressive strength, permeable voids, and water absorption and chloride permeation. The results indicated that the AASs showed higher compressive strength at early ages than the OPCs. Contrary, permeable voids and water absorption measurements were lower for AASs than for OPCs.

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Author Biographies

William Aperador Chaparro, Militar University of New Granada

Mechatronics Engineering.

Jorge Hernando Bautista-Ruiz, Francisco de Paula Santander University

Physics Department.

References

H. Song, V. Saraswanthy. “Studies on the corrosion resistance of reinforced steel in concrete with ground granulated blast-furnace slag.” J Hazard Mater. Vol. 138. 2006. pp. 226-233. DOI: https://doi.org/10.1016/j.jhazmat.2006.07.022

D. Bastidas, A. Fernández, A. Palomo, J. González. “A study on the passive state stability of steel embedded in activated fly ash mortars.” Corros Sci. Vol. 50. 2008. pp. 1058-1065. DOI: https://doi.org/10.1016/j.corsci.2007.11.016

E. Rodríguez, S. Bernal, R. Mejía de Gutiérrez, F. Puertas. “Alternative concrete based on alkaliactivated slag”. Mater Construcc. Vol. 58. 2008. pp. 53-67.

E. Rodríguez, S. Bernal, R. Mejía de Gutiérrez, F. Puertas. “Alternative concrete based on alkaliactivated slag”. Mater Construcc. Vol. 58. 2008. pp. 53-67. DOI: https://doi.org/10.3989/mc.2008.v58.i291.104

ASTM C 989-99 Standard. Standard specification for ground granulated blast-furnace slag for use in concrete and mortars. West Conshohocken, PA, American Society for Testing and Materials. 1999.

ASTM C 150-02 Standard. Standard specification for Portland cement. West Conshohocken, PA, American Society for Testing and Materials. 2002.

ASTM C 42/C 42M-04 Standard. Standard test method for obtaining and testing drilled cores and sawed beams of concrete. West Conshohocken, PA, American Society for Testing and Materials. 2004.

ASTM C 642-06 Standard. Standard test method for density, absorption, and voids in hardened concrete. West Conshohocken, PA, American Society for Testing and Materials. 2006.

ASTM C 1202-07 Standard. Standard test method for electrical indication of concrete’s ability to resist chloride ion penetration. West Conshohocken, PA, American Society for Testing and Materials. 2007.

F. Puertas, M. Palacios, T. Vázquez. “Carbonation process of alkali-activated slag mortars.” J Mater Sci. Vol. 41. 2006. pp. 3071-3082. DOI: https://doi.org/10.1007/s10853-005-1821-2

S. Wang, K. Scrivener. “Hydration products of alkali activated slag cement.” Cement Concrete Res. Vol. 25. 1995. pp. 561-571. DOI: https://doi.org/10.1016/0008-8846(95)00045-E

M. Palacios, F. Puertas “Effect of carbonation on alkali-activated slag paste.” J Am Ceram Soc. Vol. 89. 2006. pp. 3211-3221. DOI: https://doi.org/10.1111/j.1551-2916.2006.01214.x

C. Shi. “Strength, pore structure and permeability of alkali-activated slag mortars.” Cement Concrete Res. Vol. 26. 1996. pp. 1789-1799. DOI: https://doi.org/10.1016/S0008-8846(96)00174-3

Published

2012-07-31

How to Cite

Chaparro, W. A., Martinez Bastidas, D., & Bautista-Ruiz, J. H. (2012). Mechanical properties and absorption of chlorides in alkali activated slag concrete and exposed to carbonation. Revista Facultad De Ingeniería Universidad De Antioquia, (62), 189–195. https://doi.org/10.17533/udea.redin.12479