Early-Strength Geopolymer Grouting Material for Non-Excavation Road Foundation Settlement

Overview of Early-Strength Geopolymer Grouting Material

The subgrade and base course are the core components that reflect the load-bearing capacity of a road and should be the focus of road maintenance. However, traditional maintenance processes often overlook the importance of subgrade and base course maintenance. The application of modified geopolymer grouting technology addresses the shortcomings of traditional maintenance methods, emphasizing structural reinforcement of the subgrade and base course, while offering advantages in terms of traffic impact, economic efficiency, and environmental friendliness.

Early-Strength Geopolymer Grouting Material (abbreviated as modified geopolymer grouting material) is a specialized grouting material pre-mixed with various modifiers, including high-strength cement, geopolymer admixtures, high-efficiency water reducers, expansion agents, and thickening agents.

The modified geopolymer grouting technology for non-excavation subgrade void filling offers the following advantages:

⑴ It treats defects from the subgrade to the base course and then to the surface layer, breaking conventional practices and addressing both symptoms and root causes;

⑵ It prioritizes the treatment of the subgrade and base course to avoid repeated repairs;

⑶ It is non-excavation, fast, and causes minimal traffic disruption;

⑷ It has a short curing time, allowing for quick reopening to traffic;

⑸ It is environmentally friendly and cost-effective. By first treating subgrade and base course defects with the new modified geopolymer grouting technology and then using conventional techniques for the surface layer, the effectiveness of conventional road maintenance technologies can be fully utilized.Application Scope of Early-Strength Geopolymer Grouting Material

Used for non-excavation (minimally invasive) rapid construction in highway and railway subgrade void reinforcement projects.Characteristics of Early-Strength Geopolymer Grouting Material

High fluidity; micro-expansion; early strength and rapid hardening; good toughness; high strength; green and environmentally friendly.

IV Technical Indicators of Early-Strength Geopolymer Grouting Material

Main technical indicators of Early-Strength Geopolymer Grouting Material