Ordinary portland cement 42.5,42.5R

Standard:  GB175-2007, JC/T452-2009, GB/T19001-2008 IDT, ISO9001:2008

Features:

High strength, high steady, high quality, low fluctuate

High purity limestone  material, with advanced Pyro-Rapid pre-calcine, pre-heating technology.

By advanced X-ray fluorescence analyzer, we can get ingredient quickly and make ingredient steady.

Dry method equipment imported from Germany KHD, make clinker aggregate excellent quality. (C3S+C2S﹥77%, C3A≈8%, C4AF≈12%)

Freeze proof, abrasion resistance, low slump constant.

Attention:

Store carefully, avoid moisture.

Not mix with different type cement together.

Select cement type and grade as real condition

Application range:

For important structure high strength concrete and prestressed concrete project, like as bridge, wharf, road, airport, high rise building and other large concrete construction works, and also for ordinary industrial and civil construction engineering.

Packaging：

50kg per bag, 40 bags into a 2MT jumbo bag; or as your requirements

Ordinary portland cement 42.5,42.5R analysis report

Portland cement                    42.5                      42.5R

Items             Units      National    Internal    National    Internal

Sample size        Kg           /          6.0             /            6.0

SO3                %         ≤3.5         2.44           ≤3.5          2.8

MgO                %         ≤6.0         1.32           ≤6.0          1.4

Cl                 %         ≤0.06        0.021          ≤0.06         0.02

Loss               %         ≤5.0         3.74           ≤5.0          4.0

Fineness

(specific surface) ㎡/kg     ≥300         358             ≥300         385

Standard

consistency water  %          /           28.0             /            28.0

Time     Initial   H:Min     ≥0:45       4:50             ≥45          228

          Final   H:Min      ≤10:00      5:45             ≤600         368

Soundness pat test            /          past              /            past

Bending strength 3d MPa      ≥3.5        5.1              ≥4.0         6.2

                28d MPa      ≥6.5        8.6              ≥6.5         9.2

Compressive

strength        3d MPa       ≥17.0       26.6             ≥22.0         30

               28d MPa       ≥42.5       50.9             ≥42.5         52.6