Dynamic Quality Control of Flexible Pavements

Abstract

A methodology is proposed to assure the final pavement structure under construction will meet the assumed design properties. Through a statistical analysis of the quality control data, for each layer, a check is made to see if these data meet the previously specified standards. If not, then a reevaluation is done in order to assure the final properties meet the design conditions. A normal distribution of the data is assumed. A one‐sided confidence control parameter is utilized. In the first iteration process, the assumed subbase properties are evaluated, thus allowing for a first adjustment in the design, and allowing the contractor to adjust his original bid. The subsequent evaluations will define the quality of the contractors' work, allowing adjustments due to poor construction quality until the last pavement layer is built, then if the finished pavement doesn't meet the previously specified requirements, the contractor should be penalized.