PQ University Lesson 9 Washing Classifying : Pit Quarry
Sep 10, 2015· Equipment choices vary in the removal of fines — from the use of a wet screen to the use of a classifying system. Manufactured sand is widely accepted in asphalt mixes. In concrete mixes, manufactured sand is often blended with natural sand. Washing (versus air separation) is recommended when classifying material for concrete mixes.