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項目
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標準技術指標
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普通型
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高強型
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早強型
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粒徑
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4.75mm方孔篩篩余／%
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≦2.0
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≦2.0
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≦2.0
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≦2.0
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|
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凝結時間
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初凝／min
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≧120
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≧120
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≧120
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≧60
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泌水率/ %
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≦1.0
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≦1.0
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≦1.0
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≦1.0
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流動度/mm
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初始流動度
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≧264
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≧280
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≧280
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≧280
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|
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30min保留值
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≧240
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≧260
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≧260
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≧260
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抗壓強度/MPa
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6h
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—
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—
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—
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≧25.0
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|
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1d
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≧22.0
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≧25.0
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≧40.0
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≧45.0
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3d
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≧40.0
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≧45.0
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≧60.0
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≧650
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28d
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≧70.0
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≧75.0
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≧80.0
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≧80.0
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豎向膨脹率/ %
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1d
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≧0.020
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≧0.020
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≧0.020
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≧0.020
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鋼筋握裹強度(圓鋼)／MPa
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28d
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≧4.0
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≧6.0
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≧6.0
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≧6.0
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對鋼筋銹蝕作用
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應說明對鋼筋有無銹蝕作用
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