product grade:
portland cement 42.5  42.5r

product standard:
GB175-2007, JC/T452-2009, GB/T19001-2008 IDT, ISO9001:2008  
  
product description:
The portland cement is the main product we exporting to the foreign countries, including grade 32.5 32.5r 42.5 42.5r 52.5 52.5r, with top quality and high performance!

Product Feature
(1)High strength, high steady, high quality, low fluctuate
(2)High purity limestone material, with advanced Pyro-Rapid (3)pre-calcine, pre-heating technology.
(4)By advanced X-ray fluorescence analyzer,ingredient quickly and make ingredient steady.
(5)Dry method equipment imported from Germany KHD, make clinker aggregate excellent quality. (C3S plus C2S more than 77 percent, C3A about 8percent, C4A Fabout 12 percent)
(6)Freeze proof, abrasion resistance, low slump constant.

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

Application
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