
High-Strength Grout
- 交标JTG/T 3650
- 国铁集团Q/CR409
Sleeve Grouting Material GJL-101for Reinforcement Connection
The sleeve grouting material GJL-101 for reinforcement connection is a dry-mix material composed of cement as the basic material, fine aggregate, concrete admixtures and other materials. When mixed with water, it exhibits excellent fluidity, early strength, high strength, micro-expansion, self-compacting properties, rust prevention, and pollution-free characteristics to water quality and surrounding environment. This dry powder material, specifically designed for filling the gap between sleeves and ribbed steel bars, is commonly known as Sleeve Grouting Material.

Cushion Slurry HJ-290
It is a dry-mix material based on cement, fine aggregates and admixtures. When mixed with water, it provides excellent self-leveling, rapid hardening, high early strength, high strength, micro-expansion and no shrinkage. Non-toxic, non-polluting and anti-rust, it features outstanding self-compacting performance. It ensures reliable quality, cost savings, shorter construction periods and easy application.

YJJ-101 Grouting Agent
The YJJ-101 grouting agent is a product specifically designed for post-tensioned prestressed duct (pipe) grouting construction. Composed of various high-quality cement-based materials and high-performance admixtures, it delivers excellent fluidity, stable grout, good fullness, no shrinkage, micro-expansion,high strength, and no harmful substances to reinforcements.

YJL-101 Grouting Material
The YJL-101 grouting material is a product specifically designed for post-tensioned prestressed duct grouting construction. Composed of various high-quality cement-based materials and high-performance admixtures, it delivers excellent fluidity, stable grout, good fullness, no shrinkage, micro-expansion, high strength, and no harmful substances to reinforcements.

YJJ-301 Grouting Agent for Railway
The YJJ-301 grouting agent for railway is a product specifically designed for post-tensioned prestressed duct (pipeline) grouting construction. Composed of various high-quality cement-based materials and high-performance admixtures, it delivers excellent fluidity, stable grout, good fullness, no shrinkage, micro-expansion, high strength, and no harmful substances to reinforcements.
Core Technical Features
- High fluidity: Initial fluidity ≤ 10s, meeting the requirements for long-distance grouting
- Micro-expansibility: 24h free expansion rate 0.02% – 0.1%, preventing shrinkage and cracking
- High strength: 7d compressive strength ≥ 40MPa, 28d ≥ 50MPa
Core Technical Features
- Ready to Use: Premixed dry mix, workable with water stirring, less proportioning errors
- High Stability: Grout fluidity loss ≤5s in 30min standing, anti-segregation
- Corrosion Resistance: Non-corrosive to prestressed steel strands, compliant with railway engineering durability requirements
Railway YJL-301 Grouting Material
Railway YJL-301 Grouting Material is designed for post-tensioned prestressed duct grouting construction. It is formulated with a variety of high-quality cement-based materials and high-performance admixtures through optimized mixing. It features excellent fluidity, stable slurry, good filling performance, non-shrinking and micro-expansion properties, high strength, and contains no substances harmful to steel bars.






















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