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    服務熱線

    遠洋牌42.5R普通硅酸鹽水泥

    2021-01-29

    42.5R Ordinary Portland Cement

    項目

    Project

    國家標準

    GB175—2007

    本廠實際

    Actual level

    抗折強度(MPa)

    Break strength

    3天(3Days

    ≥4.0

    ≥5.0

    28天(28Days

    ≥6.5

    ≥7.0

    抗壓強度(MPa)

    Compression strength

    3天(3Days

    ≥22.0

    ≥23.0

    28天(28Days

    ≥42.5

    ≥49.0

    凝結時間(min)
    Coagulating time

    初凝時間

    Coagulating start time

    ≥45

    90—190

    終凝時間

    Coagulating end time

    ≤600

    180—290

    細度 (0.080方孔篩)(%)

    ≤10.0

    ≤7.0

    燒失量(Loss on ignition)(%)

    ≤5.0

    ≤4.0

    SO3 (%)

    ≤3.5

    ≤2.5

    MgO (%)

    ≤5.0

    ≤5.0

    氯離子(%)  Chloride ion

    ≤0.06

    ≤0.05

    比面積 (/kg)

    ≥300

    350-390

    安定性(沸煮法)

    合格

    合格

     

    若用戶要求提供低堿水泥時,則水泥中堿含量小于0.6%。

    特點

    早期強度高,凝結時間適中,水泥流動性好。

    適用范圍

    國防、海港、鐵路、機場、橋梁、水工、高層建筑等混凝土工程。




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