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سنگدانه، مجموعهای از ذرات ریز و درشت طبیعی و مصنوعی است که به عنوان مصالح، ماده اولیه، پرکننده و فیلتر برای مصارف مختلف عمرانی، صنعتی و معدنی مورد استفاده قرار میگیرد. بیشترین مواد استخراجی در دنیا، سنگدانهها هستند. دلیل این امر، فراوانی این مواد و کاربردهای گسترده آنها در حوزههای مختلف است. معیارهای …
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