Aggregates for Concrete
To understand the role played by aggregate in the performance of concrete it is necessary to de fine specific aggregate properties and show their effect on concrete properties CHAPTER 3—AGGREGATE PROPERTIES AND TEST METHODS —Grading Definition and test method—Grading refers to the distribution of particle sizes present in an
ASTM D448 08 ASTM D448 08
Some contract documents specify certain aggregate sizes for specific uses or may suggest one or more of these sizes as appropriate for the preparation of various end product mixtures In some cases closer limits on variability of the aggregate grading are required 5 Manufacture The standard sizes of aggregate described in this clas