iron aggregates for concrete

Failing Concrete Foundations Linked to Aggregate – Fine ... Pyrrhotite, a mineral found in stone aggregate used to make concrete, is the suspected cause of hundreds, possibly thousands, of foundation failures in eastern Connecticut. Hundreds of Connecticut homeowners have complained that the concrete foundations holding up their houses are crumbling, and ... Types and Causes of Concrete Deterioration Corrosion of reinforcing steel and other embedded metals is the leading cause of deterioration in concrete. When steel corrodes, the resulting rust occupies a greater volume than the steel. Rust Coloured Stains on the surface of Exposed Aggregate ... Rust Coloured Stains on the surface of Exposed Aggregate Concrete What is causing the Rust Coloured Stains There are a multitude of causes that can result in Rust Coloured Stains on the surface of concrete. This document deals specifically with rust coloured stains created by "Ironstone" on the surface of Exposed Aggregate Concrete.    Read More

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