A methodology for evaluating micro-surfacing treatment on asphalt pavement based on grey system models and grey rational degree theory. (30th September 2017)

• Record Type: Journal Article
• Authors: Yu, Jiangmiao; Zhang, Xiaoning; Xiong, Chunlong
• Is Part Of: Construction & building materials. Volume 150(2017)
• Page Start: 214
• Page End: 226
• Publication Date: 2017-09-30
• Subjects: Micro-surfacing treatment -- Grey system model -- Grey relational degree theory -- New PQI model -- Service life; Building materials -- Periodicals; 624.18
• DOI: 10.1016/j.conbuildmat.2017.05.181
• Languages: English
• ISSNs: 0950-0618

Abstract

Highlights: Evaluating micro-surfacing using grey system model and grey relational degree theory. Grey models are established for predicting types of indicators' long-term performances. New PQI models were developed with the application of grey rational degree theory. Service life of micro-surfacing treatment are determined using the new PQI model. The average service life for micro-surface treated pavement was predicted to be 4.5 years. Abstract: This paper presents and demonstrates a methodology for evaluating a micro-surfacing treatment on asphalt pavement based on the grey system model and grey relational degree theory. Firstly, over 5, 375, 000 data points from the Guangdong Province are collected and processed using the Pauta criterion and short-term trends of selected performance indicators including pavement surface condition index (PCI), riding quality index (RQI), rut depth index (RDI), and skid resistance index (SRI) are analysed. Grey models of different types of indicators are then established for predicting long-term performance. A new PQI model was developed using the optimum predicted long-term performance with the application of the grey rational degree theory. Finally, the service life of the micro-surfacing treatment was determined using the new PQI model. Results demonstrate a representative service life over 4.5 years for the micro-surfacing treatment with a critical PQI value of 80. The proposed methodology validated the micro-surfacing treatment as a valuable assessment system that can be successfully applied with or without other pavement maintenance treatments.