GB/T 8074 is a Chinese national test method for determining the specific surface area (fineness) of cement using the Blaine air-permeability approach.
It is commonly used for cement quality control, mill process control, and acceptance testing where fineness is specified or monitored. If you need help matching instrument capability (manual vs. automatic Blaine) to your test volume and reporting needs, talk with our team.
GB/T 8074-2008 — Testing method for specific surface of cement – Blaine method
GB/T 8074-2008 is the current listed edition for this designation and is used to measure cement fineness by correlating air flow resistance through a compacted cement bed to a specific surface area result.
| Field | Value |
|---|---|
| Standard number | GB/T 8074-2008 |
| English title | Testing method for specific surface of cement – Blaine method |
| Status | Current (现行) |
| Issue date | 2008-01-09 |
| Implementation date | 2008-08-01 |
| Replaces | GB/T 8074-1987 |
Quick definition
Standard type: Test method.
What it measures: Cement specific surface area (fineness indicator) using the Blaine air-permeability principle.
Typical use: Cement manufacturing QC, incoming cement verification, and routine lab monitoring of grinding consistency.
What this standard covers
GB/T 8074 specifies a Blaine-method procedure for determining the specific surface area of cement. In practice, this is a permeability-based fineness value used as a control and comparison metric for cement powders.
The method relies on a defined test apparatus and controlled measurement conditions so results can be compared across batches, sites, and time when the same edition and setup are used.
Why this standard matters in testing
Specific surface area is widely used as a fast, repeatable indicator of cement fineness that supports day-to-day process control and product consistency decisions. It is often referenced when fineness requirements appear in cement or binder specifications, plant control plans, or purchaser requirements.
For procurement and lab management, the key practical point is repeatability: Blaine results depend on the instrument configuration, calibration approach, and whether the lab uses a manual or automated workflow.
Common materials, product types, or applications covered
Common materials: Cement (including typical plant and commercial cement products where Blaine fineness is monitored).
Common use environments: Cement plants, third-party testing labs, concrete producers verifying incoming cement, and research labs comparing grinding or blending studies.
Common test or verification workflow
A typical GB/T 8074 workflow includes preparing a representative cement sample, conditioning or handling it consistently, running the Blaine permeability measurement, and calculating/reporting the specific surface area per the standard’s requirements.
Many laboratories pair the Blaine fineness result with other routine cement physical tests (for example, sampling and density determination) to maintain consistent calculations and traceability across batches.
Equipment commonly used for this standard
GB/T 8074 is strongly equipment-oriented because the Blaine method is defined around a specific air-permeability measurement setup. Labs commonly select equipment based on throughput needs, operator preference, and data handling requirements.
Common equipment: Blaine air-permeability specific surface area apparatus (manual or automatic/digital configurations), suitable balance, timing/measurement capability, and supporting accessories used to prepare and run the permeability test.
If you are outfitting a cement lab or upgrading from manual to automated Blaine testing, you can request a detailed quote for an instrument package aligned with your sample volume and reporting workflow.
How to read this designation or revision
GB/T: A recommended (non-mandatory) Chinese national standard designation.
8074: The standard’s unique identifier for this specific surface area (Blaine method) test.
-2008: The year of the cited edition. Many purchase documents, QC plans, or test reports reference the year, and equipment setup/reporting expectations may depend on the exact edition cited.
Related standards, methods, or frameworks when useful
GB/T 8074 testing is commonly used alongside other cement test standards in a complete QC program (for example, standards covering cement sampling and cement density determination). When you are aligning a lab method list to a customer specification, it is good practice to ensure those companion references are consistent with the same procurement and reporting requirements.
Get help selecting a GB/T 8074 setup
If you need help choosing between manual and automatic Blaine configurations, accessory packages, or documentation expectations for a specific cement product requirement, contact our team with the edition you must follow and your typical sample throughput.
