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:
Symposium Paper
Volume:
229
Issue:
Appears on pages(s):
93-108
Keywords:
blast-furnace slag; chloride ions; compressive strength; durability; porosity; rice husk ash
DOI:
10.14359/14730
Date:
9/1/2005
Abstract:
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.