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| 介绍公司32.5级、42.5级、52.5级普通硅酸盐水泥的各项参数。 |
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项目\标准值
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普通（P.O）32.5 |
普通（P.O）42.5 |
普通（P.O）52.5 |
标准 |
内控指标 |
标准 |
内控指标 |
标准 |
内控指标 |
氧化镁(MgO)%
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≤5.0 |
≤4.0 |
≤5.0 |
≤4.0 |
≤5.0 |
≤4.0 |
三氧化硫(SO3)%
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≤3.5 |
≤3.0 |
≤3.5 |
≤3.0 |
≤3.5 |
≤3.0 |
烧失量(Loss)%
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≤5.0 |
≤4.0 |
≤5.0 |
≤4.0 |
≤5.0 |
≤4.0 |
细度(80um)%
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≤10.0 |
≤4.0 |
≤10.0 |
≤4.0 |
≤10.0 |
≤4.0 |
安定性(mm)
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≤5.0 |
<4.0 |
≤5.0 |
<4.0 |
≤5.0 |
<4.0 |
凝结时间 |
初凝 |
≥45 |
≥1, ≤4 |
≥45 |
≥1, ≤4 |
≥45 |
≥1, ≤4 |
终凝 |
≤10 |
≤5 |
≤10 |
≤5 |
≤10 |
≤5 |
抗压强度(Mpa) |
3天 |
≥11.0 |
≥18 |
≥16.0 |
≥24.0 |
≥22.0 |
≥29.0 |
28天 |
≥32.5 |
≥37 |
≥42.5 |
≥50.0 |
≥52.5 |
≥60.0 |
抗折强度(Mpa)
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3天 |
≥2.5 |
≥4.0 |
≥3.5 |
≥4.8 |
≥4.0 |
≥6.5 |
28天 |
≥5.5 |
≥6.0 |
≥6.5 |
≥7.8 |
≥7.0 |
≥9.0 |
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