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self compacting rock backfill

Aug 01 2000 · If you backfill with crushed stone and dont compact it its almost certain to settle and create a void beneath the floor Then the slab may crack where it bridges the void Vibratory rollers or flatplate vibrators are the best choice for compacting granular materials For deep trenches compact the stone in layers no thicker than 6 inches... As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.

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