Products

CEMENT


普通硅酸盐水泥标准/ Portland Cement Standard

项目
Item
单位
Unit
中国标准/Chinese Standard
62.5R 62.5 52.5R 52.5 42.5R 42.5 32.5R 32.5
不溶物
Insoluble
% ≤0.75 ≤0.75 ≤0.75 ≤0.75 ≤0.75 ≤0.75 ≤0.75 ≤0.75
氧化镁
MgO
% ≤5.0 ≤5.0 ≤5.0 ≤5.0 ≤5.0 ≤5.0 ≤5.0 ≤5.0
三氧化硫
SO3
% ≤3.5 ≤3.5 ≤3.5 ≤3.5 ≤3.5 ≤3.5 ≤3.5 ≤3.5
烧失量
LOI
% ≤3.0 ≤3.0 ≤3.0 ≤3.0 ≤3.0 ≤3.0 ≤3.0 ≤3.0
氯离子
Chloride
% ≤0.06 ≤0.06 ≤0.06 ≤0.06 ≤0.06 ≤0.06 ≤0.06 ≤0.06
比表面积
Blaine
m2/Kg >300 >300 >300 >300 >300 >300 >300 >300
安定性(试饼法)
Soundness Olcement(pat test)
  Qualification
凝结时间
Setting Time
初凝/Initial 分/Min ≥45 ≥45 ≥45 ≥45 ≥45 ≥45 ≥45 ≥45
终凝/Final 分/Min ≤390 ≤390 ≤390 ≤390 ≤390 ≤390 ≤390 ≤390
抗折强度
Bending Strength
3 天/day Mpa ≥5.5 ≥5.0 ≥5.0 ≥4.0 ≥4.0 ≥3.5 ≥3.5 ≥2.5
28 天/day Mpa ≥8.0 ≥8.0 ≥7.0 ≥7.0 ≥6.5 ≥6.5 ≥5.5 ≥5.5
抗压强度
Compressive Strength
3 天/day Mpa ≥32.0 ≥28.0 ≥27.0 ≥23.0 ≥22.0 ≥17.0 ≥15.0 ≥10.0
28 天/day Mpa ≥62.5 ≥62.5 ≥52.5 ≥52.5 ≥42.5 ≥42.5 ≥32.5 ≥32.5
               国家标准/National Standard: GB175-2007