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Fred H. ShrimerSenior Principal Geoscientist, WSP Golder, Vancouver, CanadaPart of the book: Pyrite and Pyrrhotite: Managing the Risks in Construction Materials and New ApplicationsChapter DOI: https://doi.org/10.52305/NSRK9280AbstractThis chapter examines recommendations to assist in the avoidance of problematic effects of pyrite and other sulfide minerals in aggregates and rock resources used in construction. An overview of the various considerations and required inputs that should be included in order to effectively avoid these issues is provided. The discussion considers site-specific characteristics, geological variability and methods to develop the information that is necessary for undertaking a methodical analysis of sites.Keywords: sulfide, pyrite, geology, site characterizationReferencesAggregates Business. (2021). Growing global aggregates sustainably. Aggregates Business. Dec. 8, Dartford,UK. Online article: https://www.aggbusiness.com/feature/growing-global-aggregates-sustainably.BNQ 2560-900. (1974). Granulats – Détermination du nombre pétrographique [Aggregates – Determinationof petrographic number]. Bureau de normalisation du Québec, Québec City.CSA Group. (2019). Concrete materials and methods of concrete construction. CSA A23.1:19/A23.2:19, Toronto.Kanters, B. (2022). Concrete Measurements – Steps Towards a Low-Carbon Future. Rock to Road Magazine.March-April Issue: 8-11.Maher, M. L. J. and Gray, C. (2012). Aggregates Prone to Causing Pyrite-Induced Heave: How They can beAvoided. Paper presented at the Extractive Industry Geology (EIG) Conference, Ormskirk, U.K.Matheson, G. D. and Quigley, P. (2016). Evaluating pyrite-induced swelling in Dublin mudrocks. QuarterlyJournal of Engineering Geology and Hydrogeology, 49 (1): 47-66.NSAI. (2017). Reactive Pyrite in sub-floor hardcore material – Part 1: Testing and categorisation protocol.National Standards Authority of Ireland (NSAI), I.S. 398-1:2017.Shrimer, F. and Bromley, A. (2012). Pyritic Heave in Ireland: The Role of Petrography. Joint Conference ofEuroseminar on Microscopy of Building Materials and International Cement Microscopy Association, Halle, Germany.Stanton, T. E. (1940). Expansion of concrete through reaction between cement and aggregate. Proceedings ofthe American Society of Civil Engineers, v. 66(10): 1781-1811
