Clinker Chronicles: The Dry Truth About Safely Carrying Cement Clinker in Bulk

 🚢 Clinker Chronicles: The Dry Truth About Safely Carrying Cement Clinker in Bulk

❓ Did You Know...

• Can loading cement clinker in rain ruin your cargo—and your reputation?
• Are your hatch covers really weather-tight enough for clinker carriage?
• Could poor cleaning after clinker discharge lead to costly hold damage claims?

 

⚖️ Clause Spotlight: Carriage Guidelines for Cement Clinker (IMSBC Code Group C Cargo)

Cement clinker, a crucial intermediate in cement production, is classified under Group C in the IMSBC Code—meaning it poses no chemical hazards, but it can cause serious operational and cargo claim issues if mishandled.

Let’s break it down:

 

📘 Cement Clinker – What Operators Must Know

General Characteristics:

• Non-combustible with low fire risk.
• Stowage Factor: Typically 0.61 – 0.84 m³/ton (confirm with shippers for accuracy).
• Often grey or white, dusty, and abrasive.
• Sensitive to moisture; must be kept dry at all times.

 

⚠️ Operational Implications & Practical Considerations

🔍 Before Loading:

• ✅ Obtain Shipper’s Declaration & MSDS.
• ✅ Conduct hatch cover hose test and inspect bilge non-return valves.
• ✅ Confirm air-tight sealing ability of hatch covers.
• ✅ Brief crew on PPE use (dust masks, safety goggles).

🌧️ During Loading:

• 🚫 Do NOT load during rain or heavy humidity.
• ✅ Close non-working hatches immediately.
• ✅ Ensure accommodation A/C is set to recirculation.
• ✅ Cover all exposed machinery and air inlets.

🧹 Post-Discharge & Cleaning:

• ⚠️ Cement clinker residues harden fast—delays in cleaning can damage coatings.
• ✅ Sweep, air-blow, and collect all dry residues before washing.
• ✅ Use cement remover or descaler in bilges post-wash.
• ✅ Maintain bilge suction to prevent water-clinker paste buildup.

 

👨‍⚖️ Real-World Case Pitfalls

• Claim Example: Operators faced a $50,000 claim for corroded bilge lines caused by clinker dust and water reacting over time.
• Common Pitfall: Crew often delay hatch cover tests—causing water ingress mid-voyage leading to cargo claims.
• Expert Advice: Always document your hose test results and sealing tape inspections for evidence.

 

✅ Action Checklist for Operators & Managers

Stage	Key Action
Pre-Loading	Get MSDS & Declaration, test bilges/hatches
During Loading	Monitor weather, dust protection for crew/equipment
Voyage	Monitor bilges regularly, seal holds airtight
After Discharge	Quick dry-clean, remove clinker dust before wet wash
Post-Cleaning	Use descaler, check bilge pumps, collect evidence

 

📣 Conclusion: Get Clarity on Clinker

Cement clinker is harmless on paper—but operationally, it’s no joke. Improper handling can lead to hold damage, cargo claims, or crew health hazards. Follow the guidelines above and stay ahead of the dust cloud.

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⚠️ Disclaimer:

This blog provides general industry guidance and does not replace vessel-specific charter party terms, local port regulations, or IMSBC Code obligations. Always consult official documentation and professional surveyors where required.