In this labaratory the physical properties of aggregates are tested in order to determine their quality for the standards. Physical Properties tests like, Particule Size Distribution Determinations (Sieve Analysis, Fine Materials), Particule Shape Determination, Los Angeles abrassion value, Aggregate impact value, Flakiness index, Resistance to freezing, Density and water absorption, Grading of sands and gravels, Unit weight and void content, Crushability index etc are carried out in this labaratory. In order to test the briquetting quality of Turkish coals there are also few testing apparatus in the labaratory.