Portland Cement 42.5 (GB-197-1999)

Commodity: Ordinary portland cement P. O 42. 5

Yield: 800. 000mt/per year

Packing: 50kg per bag 2000kg per bag

Quality: In conformity with national standard GB175-1999

Loading port: Lianyungang, China

Loading rate: 8000MT/per day

CHEMICAL ANALYSIS

Reference results Specification

Silicon dioxide SiO2 % 23.46

Aluminium oxide Al2O3 % 8.32

Farric oxide Fe2O3 % 3.65

Calicum oxide CaO % 55.56

Magnesium oxide MgO % 2.81 Max6.0

Sulphur trioide SO3 % 2.0 Max3.5

Loss on ignition L.O.I. % 2.18 Max3.0

Insoluble residue L.R. % Max 0.75

Aikalies(Na2O+0.658K2O)

Lime saturation factor LSF % 0.62

Tricalcuium silicate C3S % 19.18

Dicalcium silicate C2S % 81.78

Tricalclum aluminate C3A % 15.91

Tetracalcium alumlnoferrite C4AF % 11.10

C4AF-2C3A

Chloride CL %

ANALYSIS TEST

Air content of mortar(volume) % - Max12.0

Finess.Air permeability test M2/kg 310 Min280

Soundness.Autoclave test % - Max0. 80

Compressive strength

3 days M.Pa 20.0 Min12.0

7 days M.Pa Min19.0

28 days 49.0

Setting time(Vicat test)

Initial minutes 240 Min 45

Final minutes 350 Max 375