Duval Asphalt has received 18 Diamond Quality Commendations since the program began in 2009.
The Diamond Quality Commendation focuses on plant practices resulting in excellent product quality. The Diamond Quality Commendation extends the idea of a blueprint for excellence to the pavement material that is produced.
The commendation evaluates quality management; RAP, RAS and aggregate handling; asphalt binder storage; drying and mixing; air quality; truck scales; silos; control rooms; training; and safety. Some questions are mandatory and require an appropriate response in order for the application to be eligible. Each individual area requires a minimum of 80 percent and the total score must be at least 85 percent to receive the Diamond Quality Commendation. Verification by a third party not affiliated with the company is required.