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:
10.14359/51740756
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.
Related References:
1. Jana, D., “Concrete Deterioration from the Oxidation of Pyrrhotite: A State-of-the-Art Review,” Pyrite and Pyrrhotite, M.L.J. Maher, ed., Nova Science Publishers, Inc., Hauppauge, NY, 2023, pp. 137-221.
2. Jana, D., “Pyrrhotite Epidemic in Eastern Connecticut: Diagnosis and Prevention,” ACI Materials Journal, V. 117, No. 1, Jan. 2020, pp. 61-70.
3. Duchesne, J.; Rodrigues, A.; and Fournier, B., “Concrete Damage due to Oxidation of Sulfide-Bearing Aggregate: A Review of Recent Advances and Limitations,” RILEM Technical Letters, V. 6, 2021, pp. 82-92.
4. Duchesne, J.; Rodrigues, A.; and Fournier, B., “Overview of the Trois-Rivières (Québec, Canada) Pyrrhotite Issues,” Pyrite and Pyrrhotite, M.L.J. Maher, ed., Nova Science Publishers, Inc., Hauppauge, NY, 2023, pp. 109-136.
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