Procedures for Using Statistical Methods for Process Control and Acceptance of Bituminous Mixtures

摘要

Phase I developed statistical quality control procedures for process control and acceptability from actual projects employing hot-mix asphaltic paving materials. Phase II investigated the completed components to verify the procedures. Phase III prepared a tentative system of process control and acceptance of mixtures and testing of four projects at different locations. Phase IV used the data and experience gained in the preceding parts of this study to develop a system for process control and acceptance of asphaltic mixtures and a procedure for adjusting the unit price for unacceptable lots of material. Model specifications employing statistical concepts were presented. (BPR abstract)