Influential Factors and Evaluation Methods of the Performance of Grouted Semi-Flexible Pavement (GSP)—A Review

Grouted Semi-flexible Pavement (GSP) is a novel pavement composed of open-graded asphalt concrete grouted with high-fluidity cement mortar. Due to its excellent load-bearing and anti-rutting performance, it has great potential as overlay surface in road construction. However, the understanding GSP performance remains limited pertinent findings are inconsistent. This article aims provide systematic literature review for articles which were published between 2000 2020 on GSP, explore problems recent research, identify knowledge gaps, deliver recommendations future research. The influential factors relative evaluation methods summarized discussed this article.