TH21 – Game Change for Profit in Quarry Operations: This presentation will reference a field process improvement case study that yielded substantial gains in total economy and productivity by leveraging the chemical crushing effect in the drill/blast phase of unit operations. It will demonstrate concepts, technique, and organizational issues necessary for successful change and improvement and will help attendees see drilling and blasting as the true functional primary crusher. Thursday, March 24; 9:30 – 11 a.m.