Influence of Slag Fineness on High-Performance Concrete Properties

Abstract:

This research focuses on investigating the high performance concrete containing slag with different fineness and dosage. For this purpose, the workability, compressive strength at different ages, and chloride ion penetration were investigated, with slag surface area 420m2/kg, 530m2/kg, 610m2/kg, and 720m2/kg, and replacement percentage 0%, 20%, 40%, and 60%, respectively. It was found that the workability and chloride ion penetration resistance were affected by the fineness and dosage of slag. The 7-day compressive strength decreased with slag replacement increasing when the fineness of slag is lower than 530m2/kg, and 28-day and 56-day compressive strength increased; For the fineness higher than 530m2/kg, the 7-day compressive strength is higher than that of control concrete, when the slag replacement was 40%, the concrete reached the highest value, and the 28-day and 56-day compressive strength increased with slag incorporation.

• Periodical: Applied Mechanics and Materials (Volumes 174-177)
• Pages: 286-290
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.174-177.286
• Online since: May 2012
• Authors: Hui Liu, Yuan Bao Leng, Wan Zeng Song, Sheng Bi
• Keywords: Compressive Strength, Durability, Fineness, Slag, Workability

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