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Crushed aggregate, one-inch crushed concrete, recycled asphalt, 3/8-inch pea gravel, 2-inch sewer filter rock, and concrete and asphalt aggregate blends all weigh in at 1.07 tons. Pit run gravel follows at 1.25 tons per …

Rock category (examples) Unit weight of rock γ [kN/m 3] Solid rock. most hard solid rock, intact, compact and dense quartz rock and basalt, other extraordinary hard rocks. 28.0 …