This Singapore Standard describes a method for determination of Vebe time of concrete of very low to low workability. The method applies to plain and air-entrained concrete made with lightweight, normal weight or heavy aggregates having a nominal maximum size of 40 mm or less but not to aerated concrete, no-fines concrete and concrete which cannot be compacted by vibration alone.
SS 78 Pt.A4-1987由SG-SPRING SG 发布于 1987-1-1。
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