Effect of Silica fume on Chloride Penetration Resistance of Concrete
Abstract
This research aims to study the chloride penetration resistance and compressive strength of concrete containing silica fume. The binder content in concrete was replaced by silica fume at 5%, 7.5%, 10% and 15% by weight of binder. The water to binder ratios were used at 0.40 and 0.50. The rapid chloride penetrations of concrete were determined at 7, 28 and 91 days of water curing. The compressive strengths of concrete were tested at 7, 14, 28, 56 and 91 days of water curing. From the experimental results, it was found that the use of silica fume to replace binder content in concrete resulted in increasing the chloride penetration resistance and compressive strength of concrete. Concrete with 15% silica fume replacement had the highest chloride penetration resistance and compressive strength. Moreover, concretes containing silica fume at lower water to binder ratio had higher chloride penetration resistance and compressive strength than that at higher water to binder ratio.
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References
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บทความทั้งหมดที่ได้รับการคัดเลือกให้นำเสนอผลงานในการประชุมวิชาการวิศวกรรมโยธาแห่งชาติ ครั้งที่ 25 นี้ เป็นลิขสิทธิ์ของ วิศวกรรมสถานแห่งประเทศไทย ในพระบรมราชูปถัมภ์
