Quality Control

Robertson Crushed Stone (RCS) has made a serious commitment to quality control for their products. It is for that reason, we have established a state of the art laboratory and use industry accepted Statistical Process Control (SPC) procedures in producing and maintaining our products. All certified products are tested, controlled, and charted according to INDOT, AASHTO, CAPP and ASTM procedures. The laboratory, which is on the premises, is furnished with all the necessary equipment to handle analysis from the normal aggregate standard to highly specialized scientific methods.


As a result of our diligence and commitment to Quality Control, Robertson Crushed Stone has been certified as an INDOT (Indiana Department of Transportation), CAPP (Certified Aggregate Producer Program) approved supplier. In 2012, Robertson Crushed Stone was nominated for the Indiana Small Cap Producer of the year award.