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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
2007

Repair of Heat-Damaged RC Shallow Beams Using Advanced Composites

J.,, Shannag, M. . 2007

Several repair techniques for restoring the structural capacity of heatdamaged high-strength reinforced concrete shallow beams using advanced composites are proposed. A series of sixteen under-reinforced concrete hidden beams were cast, heated at 600°C for three hours, repaired, and then tested under four point-loading. Tests were conducted to study the effectiveness of externally applied composite materials on increasing the flexural capacity of beams. The composites used include high strength fiber reinforced concrete jackets; ferrocement laminates; and high-strength fiber glass sheets. The beams repaired with steel and high performance polypropylene fiber reinforced concrete jackets regained up to 108 and 99% of the control beams’ ultimate load capacity, with a corresponding increase in stiffness of up to 104 and 98% respectively. The beams repaired with fiber glass sheets and ferrocement meshes regained up to 126 and 99% of the control beams’ ultimate load capacity, with a corresponding increase in stiffness of up to 160 and 156%, respectively. Most of the beams repaired showed a typical flexural

نوع عمل المنشور
Research, Materials and Structures
الصفحات
287-299
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