Research paper: sulfide-bearing aggregate in concrete

Sulfide-bearing Aggregate

Andreia Rodrigues and others at the Centre de Recherche sur les Infrastructures en Beton (Universite Laval) in Quebec, Canada have published a paper on the development of a laboratory test that attempts to reproduce the deterioration of mortar due to the oxidation of sulfide minerals in sulfide-bearing aggregate.

The paper, titled “A new accelerated mortar bar test to assess the potential deleterious effect of sulfide-bearing aggregate in concrete” adds to previous research by the authors on problems related to iron sulfides in concrete in Canada. The full abstract from Cement and Concrete Research is shown below.… Read the rest