ORIGINAL RESEARCH article
Front. Mater.
Sec. Structural Materials
Volume 12 - 2025 | doi: 10.3389/fmats.2025.1597578
This article is part of the Research TopicSustainable and Green Materials in Geotechnical EngineeringView all 5 articles
Optimization Ratios and Multi factor Service Adaptability of Cement-GGBFS Stabilized Silt in pavement structures
Provisionally accepted
- 1Chang’an University, Xi'an, China
- 2Ningbo Communications Engineering Construction Group Co., Ltd, Chang’an University, Xi'an, China
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To address the insufficient research on long-term performance and engineering validation for the resource utilization of dredged silt, this study systematically evaluated the comprehensive performance of cement-slag composite stabilized silt as a recycled subgrade material through integrated laboratory and field tests. By analyzing the mechanical properties, environmental durability, and long-term service behavior of the stabilized material, its engineering applicability was investigated. The results demonstrate that slag incorporation significantly enhances the shrinkage resistance and short-term erosion resistance of the material. Although the field unconfined compressive strength (UCS) was approximately 50% of laboratory test values, all performance indicators of the test section met specification requirements. The material exhibited standard-compliant dynamic responses under coupled effects of heavy traffic loads and natural temperature-moisture variations, with no structural damage observed. During monitoring, temperature fluctuations remained below 5°C, while moisture variations in surface and upper base layers stayed under 6%, with stable moisture maintained in stabilized layers. No surface fatigue damage occurred under equivalent 16-33 months of loading. The study confirms the superior engineering suitability of cement-slag stabilized silt as subgrade material.
Keywords: Cement-slag stabilized silt, Drying shrinkage, seawater erosion, Pavement structures, Dynamic response; Temperature and moisture, Solid Waste Utilization
Received: 21 Mar 2025; Accepted: 15 May 2025.
Copyright: © 2025 Zhu, Yang, Song, Wang, Hu and Wu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Chenyu Zhu, Chang’an University, Xi'an, China
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