Title: Preventing Pyrrhotite Damage in Concrete

Author(s): Dipayan Jana

Publication: Concrete International

Volume: 46

Issue: 5

Appears on pages(s): 42-47

Keywords: aggregate, test, expansion, distress

DOI:

Date: 5/1/2024

Abstract:
Even at a level of less than 0.5% by mass of aggregate, pyrrhotite can cause extensive cracking and crumbling of concrete. Because such type of deterioration is rather new, a proper testing protocol to forecast potential damage in concrete is needed. The article discusses important factors that should be considered when developing such performance-based test protocol.