GGBFS Supplier China | ASTM C989 Ground Slag — Grade 80 / 100 / 120
Bulk and bagged GGBFS supplied directly from established Chinese steel-mill sources. ASTM C989 / EN 15167-1 compliant. FOB / CIF from major Chinese ports.
Supplied to ready-mix plants, precast manufacturers, cement blenders, and infrastructure contractors across North America, Europe, the Middle East, Southeast Asia, and Africa. Every shipment third-party tested — COA and MTC included as standard.
Higher Long-Term Strength
Superior 56- and 90-day compressive strength vs OPC-only mixes. Grade 120 exceeds 115% activity index at 28 days.
Sulfate & Chloride Resistance
Critical for marine, coastal, and aggressive groundwater environments. Proven performance in Gulf and Southeast Asian infrastructure projects.
Lower Heat of Hydration
Significantly reduces thermal cracking risk in mass concrete pours, raft foundations, and large structural elements.
Up to 40% CO₂ Reduction
50% cement replacement with GGBFS dramatically lowers embodied carbon — increasingly required by green building standards and ESG mandates.
Flexible Packaging & Incoterms
25 kg PP bags, 1 MT / 1.5 MT jumbo bags, or bulk vessel loading. FOB, CIF, and CFR available from Tianjin, Qingdao, Shanghai, and Lianyungang.
Full Export Documentation
COA, MTC, CO, MSDS, and third-party inspection (SGS / BV / CIQ) available. All paperwork handled by our experienced export team.
Specifications by Grade
Three activity grades aligned with ASTM C989. Grade 100 is the most commonly specified for ready-mix and precast concrete worldwide; Grade 120 is preferred for high-performance and marine applications.
| Property | Grade 80 | Grade 100 | Grade 120 |
|---|---|---|---|
| 7-Day Slag Activity Index (min) | — | 75% | 95% |
| 28-Day Slag Activity Index (min) | 75% | 95% | 115% |
| Specific Surface Area (Blaine, min) | ≥ 350 m²/kg | ≥ 400 m²/kg | ≥ 450 m²/kg |
| Sulfide Sulfur (S, max) | 2.5% | 2.5% | 2.5% |
| Sulfate (SO₃, max) | 4.0% | 4.0% | 4.0% |
| Loss on Ignition (max) | 3.0% | 3.0% | 3.0% |
| Moisture Content (max) | 1.0% | 1.0% | 1.0% |
| Glass Content (min) | ≥ 85% | ≥ 85% | ≥ 85% |
* Typical values from production. Batch-specific COA issued with every shipment. Classification per ASTM C989 and GB/T 18046.
Where Our Customers Use GGBFS
From port construction in the Gulf to high-rise foundations in Southeast Asia — GGBFS is specified wherever durability, sustainability, and long service life matter.
Marine & Port Infrastructure
Sea walls, breakwaters, harbor foundations, and offshore platforms in chloride-rich environments.
Mass Concrete
Dams, raft foundations, nuclear containment — large pours where heat of hydration control is critical.
Bridges & Highway Works
Decks, piers, abutments exposed to de-icing salts, traffic loads, and aggressive groundwater.
Ready-Mix Concrete
Improved workability, finishability, and pumpability for residential and commercial projects.
Precast & Prestressed
Smoother surface finish, reduced efflorescence, consistent architectural color at scale.
Cement Blending Plants
Direct bulk supply for PSC / PBFC blending at clinker grinding and cement production facilities.
Packaging, Ports & Payment
Flexible packaging and incoterms to match your project size, discharge facilities, and handling equipment.
Packaging Options
- 25 kg PP / paper bags, palletized & shrink-wrapped
- 1,000 kg / 1,500 kg jumbo bags (FIBC) with PE liner
- Bulk loading into vessel holds (3,000+ MT per vessel)
- 20' / 40' container stuffing available
- Custom private-label bagging on request
Loading Ports
- Tianjin / Xingang Port (primary)
- Qingdao Port
- Shanghai Port
- Lianyungang Port
- Bulk vessels and container shipments arranged
Payment Terms
- 30% T/T deposit, 70% balance against B/L copy
- L/C at sight (irrevocable, from prime banks)
- D/P, D/A negotiable for established buyers
- Trial orders accepted to build long-term relationships
Documentation Provided
- Commercial Invoice & Packing List
- Bill of Lading (B/L)
- Certificate of Origin (CO / Form A / FORM E)
- Mill Test Certificate (MTC) & COA per shipment
- SGS / BV / CIQ third-party inspection on request
20+ Years of Export Experience
China is the world's largest producer of iron and steel. Miningsun has direct access to consistent, high-quality slag from established blast-furnace operations — and the export logistics expertise to deliver it on time, anywhere.
- Verified mill sourcing — long-term contracts with major Chinese steel-mill partners
- Third-party tested — ASTM C989 / EN 15167-1 compliance with COA on every shipment
- Stable pricing — quarterly fixed-price contracts available for repeat buyers
- Reliable lead times — 15–25 days from PO to vessel loading, consistently
- Multi-port loading — Tianjin, Qingdao, Shanghai, Lianyungang
- Full export documentation — CO, MTC, MSDS, SGS/BV inspection, fumigation as required
- Responsive sales team — quotes within 24 hours, English / Chinese / Spanish
Frequently Asked Questions
What is the difference between GGBFS Grade 80, 100, and 120?
What is the typical cement replacement rate for GGBFS?
Does GGBFS reduce early strength compared to OPC?
What is the minimum order quantity (MOQ) for GGBFS?
Is Chinese GGBFS compliant with EN 15167-1 for European projects?
Technical & Compliance Documents
Available to qualified buyers upon request — please specify Grade and estimated annual volume when reaching out.
Request a Quote for GGBFS
Tell us your required grade, annual volume, destination port, and packaging preference — we'll respond with a competitive FOB/CIF price within 24 hours.
Get a Price Or email us directly: info@miningsun.com · WhatsApp: +1 814 515 0096GGBFS documents, RFQ and buyer notes
Use this section after reviewing the product summary above: open public PDF files, send a fast RFQ, or check the short buyer notes before ordering.
Documents
2 public PDFsBuyer notes
On fileContinue comparing GGBFS
How to source GGBFS from China
Use these notes to compare supplier quotes quickly: grade, standard, packing, loading port and documents should be checked before confirming price.
GGBFS applications
GGBFS is supplied for ready-mix, precast, marine concrete and mass concrete. Buyers usually confirm the target grade, dosage or particle size against the project specification before final quote.
Standards and grade range
Common reference standards include ASTM C989 / EN 15167 / GB/T 18046. Available grade range: S75 / S95 / S105 and Grade 80 / 100 / 120.
Packing, MOQ and loading
Typical export packing: Jumbo bags, bulk vessel or container loading. MOQ: 1 FCL recommended; bulk orders by route. Quotes are prepared from FOB major China ports with estimated lead time of 15-25 days after PO confirmation.
Documents and inspection
PDF COA and MSDS samples; origin and inspection files on request. Public PDF samples are shown on this page. Batch COA, inspection files and shipment documents are confirmed against the actual production lot.