SL-250 Rapid-Setting Leak-Stopping Reinforcement Grout for Subway

Modified Reinforcement Material

The slurry is supplied as two separately packaged components. On‑site weighing and mixing are not required. Inject Component A and Component B at a 1:1 volume ratio through a two‑component grouting pump for automatic mixing, then grouting can be performed.

Features

1. 1.Cures in 1–2 minutes, and reaches a compressive strength of over 30 MPa in 4 hours.
2. 
   
3. 2.Solvent‑free, high flash point, non‑flammable, especially suitable for construction in confined roadways.
   
4. 
   
5. 3.The slurry does not foam in dry, wet or water‑bearing environments, and curing and strength are unaffected.
   
6. 
   
7. 4.Not easily diluted or dissolved in flowing water; the consolidated body maintains high strength.
   
8. 
   
9. 5.Good toughness of the consolidated body: no brittle cracking even when compressed by 20–30%.
   
10. 
    
11. 6.Easy construction: no on‑site mixing required; grout immediately after automatic mixing via a two‑component proportioning pump.
    
12. 
    
13. 7.Peak reaction temperature is much lower than similar products, with a maximum reaction temperature ≤ 100°C.
    
14. 
    
15. 8.Non‑flammable with excellent flame retardancy; antistatic performance is also far superior to other products.
    

Scope of Application

1. 1.Stabilize and reinforce surrounding rock in coal mine roadways, prevent spalling, roof fall, water inrush, etc.
2. 
   
3. 2.Reinforce and fill broken and loose rock masses in tunnels, subways, adits, roadways and similar projects.
   
4. 
   
5. 3.Rapidly fill, repair and strengthen underwater defects and voids in dams, dikes, harbors, wharves, bridges and other structures.
   
6. 
   
7. 4.Provide anti‑seepage and reinforcement for concrete cracks in subways, tunnels, mines and various adits.
   

Performance Indicators