The manufacture of Dragon cement is a highly technical, energy-intensive continuous process.  It all begins at our quarry, which contains one of the few veins of limestone in New England with the proper chemical characteristics for making Portland cement.  From the quarry, limestone is mined and crushed.  The crushed stone is then proportioned with other additives, such as silica and iron ore, ground with water, and fired in the 520-foot-long rotary kiln at temperatures nearing 3,000° F to produce clinker.  The clinker is then ground with gypsum to make the final product, Portland cement.  In order to meet the high demands of the manufacturing process, Dragon employs approximately 125 personnel at the cement plant.  Their experience and dedication are integral to the production and quality of our products.