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Prof. Dr. Mohammad Jamal Mahmoud Al-Shannag

Professor

Faculty

كلية الهندسة
Building No. 3, Second Floor, Office No. 2A 31
المنشورات
مقال فى مجلة
2003

Sulfate Resistance Of High-Performance Concrete

J., Shannag, M. . 2003

High-performance concrete mixes containing various proportions of natural pozzolan and silica fume (up to 15% by weight of cement) were prepared and stored in sodium and magnesium sulfate solutions, in Dead Sea and Red Sea waters. The progressive deterioration and the relative sulfate resistance of these mixes were evaluated through visual observations, ultrasonic pulse velocity measurements, and relative strength determinations. The investigation indicated that the concrete mix containing 15% natural pozzolan, and 15% silica fume showed the best protection in sulfates solutions and sea waters. The superior resistance of that mix against sulfate attack is attributed to the pore refinement process and further densification of the transition zone occurring due to the conversion of lime forming from the hydration of cement into additional binding material through lime-pozzolan reaction. This investigation recommends the use of silica fume in combination with natural pozzolan for better performance in severe sulfate environment.

نوع عمل المنشور
Research, Cement & Concrete Composites
رقم المجلد
25
الصفحات
363-369
مزيد من المنشورات
publications

Various combinations of a local natural pozzolan and silica fume were used to produce workable high to very high strength mortars and concretes with a compressive strength in the range of 69-110…

بواسطة Shannag, M. J.
2000
publications

Laboratory investigation was undertaken to develop high-performance cement-based grouts for infiltrating fiber-reinforced cementitious composites that makes them ideally suited for structural…

بواسطة Shannag, M. J.
2002