-Zement

Chemical Composition Index of inspection CA-50 GB201-2000 A500 A600 A700 A900 Al2O3 % >=50,<60 >=50,<60 >=52,<60 SiO2 >=8.0 >=8.0 >=6.0 Fe2O3 <=2.5 <=2.5 <=2.5 R2O <=0.4 <=0.4 <=0.4 S(total sulfur) <=0.1 <=0.1 <=0.1 Cl <=0.1 <=0.1 <=0.1 Physical Property Index of inspection CA-50 GB201-2000 A500 A600 A700 A900 Fineness 0.045mm sieve residue % <20 <20 Blaine specific time h:min >=300 >=300 >=400 Time of setting Initial setting time h:min >=0:30 >=0:30 >=1:00 Final setting time <=6:00 <=6:0 <=6:0 Flexural strength 1d Mpa >=5.5 >=5.5 >=6 >=6.5 >=5.5 3d >=6.5 >=6.5 >=7 >=7.5 >=6.5 Compression strength 1d Mpa >=40 >=40 >=45 >=52 >=72 3d >=50 >=50 >=55 >=62 >=82