portland cement

Portland cement: Size 52.5 and 52.5R good quality and lower price.

Portland Cement:

Qingdao Kingway Construction Co., Ltd. is one of the leading suppliers of all sizes of cement in Shandong provinze, China. Our main sizes of cement are as follows:

Product Type1.Portland cement: P.1.52.5R,P.Ⅱ42.5RApplicable scope:overground and underground high stringent concrete project.And anti-freeze, impervious, abrasion resistant concrete project. Condense and harden fastly. freezing resistance. Applicable for project require fast condense,high initial strength and freeze-thaw cycle.2. Ordinary Portland Cement: P.O42.5R,P.O42.5Applicable scope:Except aforesaid scope,also applicable for large volume concrete project.3. Composite portland cenment: P.C32.5R,P.C32.5Applicable scope:Ordinary industrial and civil architecture, real estate, hydraulic engineering.Especially for large volume concrete project.  

PORTLAND CEMENT				P.Ⅰ52.5R		P.Ⅰ52.5
ITEMS			UNITS	NATIONAL	INTERNAL	NATIONAL	INTERNAL
LOI			%	≤3.0	≤2.5	≤3.0	≤2.5
MgO			%	≤5.0	≤4.0	≤5.0	≤4.0
SO3			%	≤3.5	≤3.0	≤3.5	≤3.0
FINENESS			%	≤10.0	≤3.0	≤10.0	≤3.0
INSOLUBLE RESIDUE			%	≤0.75	≤0.70	≤0.75	≤0.70
SPECIFIC SURFACE			M2/KG	≥300	≥400	≥300	≥400
TIME	INITIAL		H:MIN	≥0:45	≥1:00	≥0:45	≥1:00
	FINAL		H:MIN	≤6:30	≤2:30	≤6:30	≤2:30
SOUNDNESS	PAT TEST			QUALIFIED	QUALIFIED	QUALIFIED	QUALIFIED
	RAY TYPE CLAMPS		MM	≤5.0	≤4.0	≤5.0	≤4.0
MPA	BENDING	3DAYS	Mpa	≥5.0	≥5.5	≥5.0	≥5.0
		28DAYS	MPA	≥7.0	≥8.0	≥7.0	≥8.0
	COMPRESSIE	3DAYS	MPA	≥27.0	≥30.0	≥23.0	≥28.0
		28DAYS	MPA	≥52.5	≥58.0	≥52.5	≥58.0

 

portland cement