Feb 03, 2012 crushed vs round aggregate in concrete. aci 318-05 and -08 does not appear to reward the designer for specifying crushed aggregate over rounded usually river rock in structural concrete. chapter 4 refers to astm c33, and leaves it at that. certainly crushed rock has better interlock, and must have better shear friction for roughened surfaces.Rubble master offers a range of mobile crushers ranging from 90 - 385 us tons per hour including compact crushers and high-performance aggregate crushers.Crushed concrete aggregates. we process and sell recycled crushed concrete and asphalt aggregates. most orders for aggregates from our 9 recycling centers are delivered within 24 hours, with quite a few orders given same-day service. for pricing and availability, please call 713 436-0990.Aggregate crushing plant. dsmac is a premier supplier of crushing and screening equipment, and related auxiliary equipment in china. we provide complete crushers and screen machines for producing all types of aggregate. one unit of dsmac aggregate production line can produce up to 800-1000 tph, the grain size will be 0-5mm, 5-10 mm, 10-20mm, 20 Dec 19, 2019 this percentage is known as a crushing value of aggregate. this percentage should not exceed 30 of the total weight of aggregate taken for the test. the aggregate crushing value test result should not be more than 30 for the concrete used for roads and pavements and, in case of other structures it may be permitted up to 45.Jul 29, 2019 what is crushed concrete or concrete aggregate crushed concrete is made up of asphalt debris from other construction projects that can be reused to create driveways, pathways, garden beds and more. when any concrete structure, road, sidewalk or parking lot is demolished, that concrete is usually deposited in a landfill.