Assessment on eco-solidified alkali residue reinforced soft soils for intelligent subgrade constructions

IF 4.9 2区工程技术 Q1 ENGINEERING, CIVIL Transportation Geotechnics Pub Date : 2025-02-09 DOI:10.1016/j.trgeo.2025.101516

Jianhua Li , Zicheng Zhang , Xu Liu , Xiaolei Jiao , Jiale Li

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引用次数: 0

Abstract

The realization of carbon neutrality can be effectively promoted by the utilization of industrial solid waste in road construction. The alkali residue (AR) is used to modify the soft soil to fulfill the requirement of subgrade construction. A series of compaction tests is performed by considering the coarse- and powdered-reinforced AR soils. The unconfined compressive strength (UCS) is tested with various contents of AR and curing ages. A dataset is established by summarizing the data from literature and laboratory tests. An intelligent model is proposed to design the treatment plan of filling soils in terms of UCS. The environmental impact of chloride diffusion is analyzed. Soluble chloride ions are immobilized using ground granulated blast slag (GGBS) and steel slag to achieve eco-friendly reinforcement of soft soil. The results of the study provide guidance for optimizing soft soil reinforcement performance for subgrade construction, improving resource utilization and reducing soil salinity.

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来源期刊

Transportation Geotechnics Social Sciences-Transportation

CiteScore

8.10

自引率

11.30%

发文量

194

审稿时长

51 days

期刊介绍： Transportation Geotechnics is a journal dedicated to publishing high-quality, theoretical, and applied papers that cover all facets of geotechnics for transportation infrastructure such as roads, highways, railways, underground railways, airfields, and waterways. The journal places a special emphasis on case studies that present original work relevant to the sustainable construction of transportation infrastructure. The scope of topics it addresses includes the geotechnical properties of geomaterials for sustainable and rational design and construction, the behavior of compacted and stabilized geomaterials, the use of geosynthetics and reinforcement in constructed layers and interlayers, ground improvement and slope stability for transportation infrastructures, compaction technology and management, maintenance technology, the impact of climate, embankments for highways and high-speed trains, transition zones, dredging, underwater geotechnics for infrastructure purposes, and the modeling of multi-layered structures and supporting ground under dynamic and repeated loads.