GB175-2007 P.O52.5R CEMENT

SURVEY REPORT GB175-2007 P.O 52.5R

ITEMS	Examine data	Mandatory Targets	Standard
MgO(%)	Max4.0	Max5.0	GB/T 176-1999
SO3 (%)	Max3.0	Max3.5	GB/T 176-1999
LOI(%)	Max3.0	Max5.0	GB/T 176-1999
Fineness(80p m residue on sieve)(%)	Max3.0	Max10.0	GB/T 1345-1991
Setting Time: Initial (min)	60-120	Min45	GB/T 1346-2001
Setting Time: Final (min)	120-230	Max600	GB/T 1346-2001
Soundness(pat test)	qualified	qualified	GB/T 1346-2001
Strength (3 day):Bending Strength (Mpa)	Min5.0	Min5.0	GB/T 17671-1999
Strength (3 day):Compressive Strength(Mpa)	Min29.0	Min26.0	GB/T 17671-1999
Strength (28 day):Bending Strength (Mpa)	Min7.5	Min7.0	GB/T 17671-1999
Strength (28 day):Compressive Strength(Mpa)	Min55.0	Min52.5	GB/T 17671-1999