A Case Study of Pavement Foundation Support and Drainage Evaluations of Damaged Urban Cement Concrete Roads

• DOI: 10.3390/app14051791
• Publication Date: 2024-02-22T13:34:35Z
• Authors: Weiwei Wang; Wen Xiang; Cheng Li; Songli Qiu; Yujin Wang; Xuhao Wang; Shanshan Bu; Qinghua Bian
• Keywords: Foundation (evidence); Service life

Surface cracks and joint deteriorations are typical premature failures of urban cement concrete pavement. However, traffic loads on the pavement much lower than those highways. Limited research has been conducted to investigate causes accelerated damage in roads. To foundation issues that may cause pavements, this study, field evaluations were assess support drainage conditions. Field visual inspections, Ground Penetrating Radar (GPR) survey, Dynamic Cone Penetrometer (DCP) test, Core-Hole Permeameter (CHP) test performed. In residential areas with inadequate subgrade bearing capacity, pavements prone early damage. Foundations a higher content coarse particles exhibit CBR value, which can extend service life The compaction materials near sewer pipelines manholes is insufficient, leading non-uniform Moreover, permeability material influence surface structures. Foundation fewer fine enhance performance, contributing longer for PCC pavements. drainage, water accumulation reduces capacity foundation, thereby accelerating deterioration. poor conditions lead cavities between layer thus yielding stress concentrations surface, formation cracks.