Quality Management of Asphalt Mixing Plants

This project deals with the implementation of a quality management system in asphalt mixing plants. The demands for bituminous mixtures are fixed extensive with requirements in technical specifications and standards. The results of the tests are compared with the requirements. If the test result is outside of the tolerances, it will come to deductions or waste. If the existence of non conformities is not discovered, the non conform product will cause follow-up costs for the placing of bituminous mixtures or can lead to a negative inspection for the final product "road". The later one realises non conformities the higher the follow-up costs will be. Therefore, companies look forward to set steps to secure the quality of the bituminous mixtures and further the quality of the road. This project also makes use of the results of the research project "factory production control according to the new prEN 13108-21". The aim of the project is to work out a quality management system for asphalt plants with the necessary statistical methods. Finally the created quality management system shall be tested by implementation in an asphalt mixing plant.