Evaluation of pyrite and pyrrhotite in concretes
Approximately 100 kg of rock samples were first triturated in primary and secondary jaw crushers. The material was then split in sieves with mesh openings of 6.3, 4.8, 2.4, 1.2, 0.6, 0.3, 0.15 and 0.10 mm. All material retained in the 6.3 mm sieve was …
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