Quality & certification
Quality control is not a final inspection — it runs through raw materials, in-process control, finished goods and dispatch. The systems and standards below are what we work to.
Systems & standards
ISO 9001
Quality management system
ISO 14001
Environmental management system
ISO 45001
Occupational health & safety
EN 934-2
EU standard for concrete admixtures (basis for CE marking)
ASTM C494
US standard specification for chemical admixtures
GB/T 8076
Chinese national standard for concrete admixtures
Test items
Cement paste fluidity
Initial and time-dependent fluidity per GB/T 8077 to judge cement compatibility.
Concrete water reduction
Reference concrete comparison to measure actual water reduction and strength ratio.
Air content & setting time
Controls entrained air and setting deviation so the construction schedule is not disrupted.
Chloride & alkali content
Strict chloride limits to avoid rebar corrosion; low-alkali grades available for reactive aggregates.
Storage stability
Heat/cold cycling and long-term static storage tests to verify against separation and sedimentation.
Third-party verification
SGS / BV / Intertek testing can be arranged on request.