In-situ grouting rate prediction of semi-flexible pavement based on a novel composite dielectric constant model and ground-penetrating radar

Semi-flexible pavement (SFP) is characterized by injected cementitious grout within porous asphalt (PA) matrixes to improve anti-rutting performance. The grouting rate is a key factor to ensure longevity and performance of SFP that require precise and non-destructive in-situ measurements. No practical approach has been built in both literature and field applications. This research proposed an automatic method for determining the SFP grouting rate, namely the Leng-Wang-Sui (LWS) model, a novel SFP dielectric constant prediction model derived from electromagnetic (EM) mixing theory. The validity of the proposed method was substantiated through a sensitivity analysis, numerical simulations of meso-scale ground-penetrating radar (GPR)-SFP models, and laboratory tests. Results verify the method’s capability to accurately predict the in-situ grouting rate of SFP, demonstrating an average estimation error below 7 %. A practical workflow of using GPR in conjunction with the LWS model for on-site assessments of SFP grouting rate was recommended for real-world applications.

• Record URL:
  • https://doi.org/10.1016/j.conbuildmat.2024.137209
• Record URL:
  • http://www.sciencedirect.com/science/article/pii/S0950061824023511
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09500618
• Supplemental Notes:
  • © 2024 Elsevier Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies. Abstract reprinted with permission of Elsevier.
• Authors:
  • Sui, Xin
  • Leng, Zhen
  • 0000-0002-7797-1134
  • Wang, Siqi
  • Cai, Xing
  • Gong, Minghui
  • Zhang, Lei
• Publication Date: 2024-8-9

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: 137209
• Serial:
  • Construction and Building Materials
  • Volume: 438
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 0950-0618
  • Serial URL: http://www.sciencedirect.com/science/journal/09500618?sdc=1

Subject/Index Terms

• TRT Terms: Field studies; Flexible pavements; Ground penetrating radar; Grouting; Predictive models; Sensitivity analysis
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01924947
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 23 2024 5:41PM