Application of Polymeric Cement Concrete as Overlay Material on Old Concrete Pavements for Low Volume Roads: Chinese Experience

摘要

This paper presents construction and field performance on applications of polymer cement concrete (PCC) as overlay materials on old concrete pavement for low volume roads in China. The material composition of PCC was introduced. PCC was designed according with defined filling index. The PCC overlay was constructed by the one-time paving construction technology using asphalt paver. The field performance tests were done including the compaction degree, texture depths, and the British pendulum number. The surface appearance and the field core of PCC were observed. Finally, economic benefits were achieved through comparisons of cost of PCC with other surface overlay material. The result show that the use of polymer concrete overlays has many advantages i.e. high-strength, fast-curing characteristics and skid resistance which can result in improved safety and reduced maintenance at a lower cost in comparison to asphalt pavement reconstruction. It indicated that PCC has been regarded as an effective method of concrete pavement rehabilitation for low volume roads.