Influence of Chemical Activation on Chloride Penetration in Concrete


  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal


Title: Influence of Chemical Activation on Chloride Penetration in Concrete

Author(s): A.L.G. Gastaldini, G.C. Isaia, N.S. Gomes, and J.E.K. Sperb

Publication: Special Publication

Volume: 229


Appears on pages(s): 93-108

Keywords: blast-furnace slag; chloride ions; compressive strength; durability; porosity; rice husk ash

Date: 9/1/2005

This study was aimed at investigating the influence of chemical activators on compressive strength and chloride-ion penetrability on binary and ternary concrete compositions, whose pore solution composition, electrical conductivity and total mercury intrusion volume were also determined. The chemically activated mixtures displayed higher chloride-ion penetrability and potassium sulfide was identified as the most effective activator. The study also showed that for a given mixture the influence of total porosity on chloride-ion penetrability was greater than the influence of specific conductivity of the pore solution.