Rapid Hardening Cement (RHC) – Technical Export Description

Product Name: Rapid Hardening Cement (RHC)
HS Code: 2523.29
Form: Fine grey powder
Category: High-early-strength Portland cement

Technical Characteristics

• Composition:

  • High-quality Portland clinker with a higher C₃S content

  • Fine grinding to increase surface area

  • Gypsum (2–5%)

• Fineness (Blaine): 4000–5000 cm²/g

• Initial Setting Time: ≥ 30 minutes

• Final Setting Time: 150–300 minutes

• Compressive Strength:

  • 1 day: 20–25 MPa

  • 3 days: 35–45 MPa

  • 7 days: 45–55 MPa

  • 28 days: ≥ 60 MPa

• Heat of Hydration: High

• Chloride Content: < 0.05%

Key Advantages

• Extremely high early strength

• Faster formwork removal

• Enables rapid construction schedules

• Suitable for cold-weather concreting

• High durability and low permeability

Applications

• Prefabricated concrete elements

• Road repairs and pavement works

• Industrial flooring

• Early-load-bearing structures

• Cold-weather concrete works

• Emergency repair works

• Bridges and precast beams

Packaging

• 25 kg / 40 kg / 50 kg bags

• 1 MT jumbo bags

• Bulk supply available

Storage

• Keep stored in a dry, moisture-free area

• Stack on pallets and avoid direct floor contact

• Shelf life: 3–4 months (due to high fineness)

Standards

• EN 197-1: CEM I 52.5R

• ASTM C150 Type III