A Review on Development of Industrial Solid Waste in Tunnel Grouting Materials: Feasibility, Performance, and Prospects

Abstract

With rapid infrastructure development worldwide, the generation of industrial solid waste (ISW) has substantially increased, causing resource wastage and environmental pollution. Meanwhile, tunnel engineering requires large quantities of grouting material for ground treatment and consolidation. Using ISW as a component in tunnel grouts provides a sustainable solution to both issues. This paper presented a comprehensive review of the recent advancements in tunnel grouting materials using ISW, focusing on their feasibility, mechanical characteristics, and future development directions. Initially, the concept and classification of ISW were introduced, examining its feasibility and advantages as grouting materials in tunnels. Subsequently, various performances of ISW in tunnel grouting materials were summarized to explore the factors influencing mechanical strength, fluidity, durability, and microstructure characteristics. Simultaneously, this review analyzed current research trends and outlines future development directions. Major challenges, including quality assurance, environmental risks, and lack of standardized specifications, are discussed. Future research directions, including multifunctional grouts, integrated waste utilization, and advanced characterization techniques, are suggested to further advance this field. These findings provided useful insights for the continued development of high-performance and environmentally friendly ISW-based grouting materials.

Characterization, Applications and New Technologies of Civil Engineering Materials and Structures

“…Liu et al explored the influence of material design parameters on the physical and mechanical properties of recycled asphalt to determine the optimal processing parameters using response surface methodology [4]. Jiang et al presented a comprehensive review of the recent advancements in tunnel grouting materials using industrial solid waste [5]. Xu et al used controlled low-strength materials for backfilling narrow spaces to achieve efficient and high-quality backfilling effects for pipeline trenches [6].…”

The Potential of Recycling and Reusing Waste Materials in Underground Construction: A Review of Sustainable Practices and Challenges

“…Utilizing industrial solid wastes (ISWs) in grouting can help reduce the usage of conventional grouting materials like cement and provide an economic and environment-friendly solution for waste management. Several studies explored the feasibility of utilizing various industrial solid wastes, such as fly ash, waste clay brick powder (WCBP), and different types of slag such as ground granulated blast furnace slag (GGBS), fuming furnace slag (FFS), and crushed fuming furnace slag (CFFS), as a partial replacement for cement in grouting applications [104][105][106][107][108][109][110][111]. Overall, the recent studies demonstrated that slags can partially replace up to 50% of cement in grouting applications [104].…”