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Flexural behavior of preloaded recycled aggregate concrete beams strengthened by CFRP and steel plates / Mohamed Sayed Ahmed Ahmed ; Supervised Mohamed Talaat Mustafa , Khaled Farouk Elkashif

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Mohamed Sayed Ahmed Ahmed , 2021Description: 92 P. : charts , facsimiles ; 30cmOther title:
  • دراسة سلوك الإنحناء على الكمرات المعرضة لتحميل مسبق و المصنعة من الخرسانة معادة التدوير و المدعمة بألواح الكربون البوليمرية و ألواح الصلب [Added title page title]
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  • Issued also as CD
Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Civil Engineering Summary: The purpose of this thesis is to study the flexural behavior of recycled aggregate concrete (RAC) continuous beams before and after strengthening. Steel plates and CFRB laminates were used as strengthening techniques. An experimental investigation was done using eight reinforced concrete beams which made of recycled aggregate and have the same dimensions, but with differences in the preloading levels and type of strengthening. Beams were divided into two control beams and two groups. The first beam was the reference beam which made of normal concrete (NC), the second control beam was made of RAC. And the first group included three beams strengthened using CFRP laminates as external strengthening. The second group included three beams also, but strengthened by steel plates. The two groups were strengthened firstly by curing and cracks filled by using two types of Epoxy. In this study, comparison between each type of strengthening was done , also the cost comparison have been occurred, and the optimum type to be used in accordance with parameters of cost and gained load-carrying capacity of the tested beams. The results show improvement in load-carrying capacity by 146% and 197% for CFRP and steel plate techniques respectively, and also show deflection decreasing by up to 82% and 87% for CFRP and steel plate's technique respectively
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Item type Current library Home library Call number Copy number Status Date due Barcode
Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.05.M.Sc.2021.Mo.F (Browse shelf(Opens below)) Not for loan 01010110084523000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.05.M.Sc.2021.Mo.F (Browse shelf(Opens below)) 84523.CD Not for loan 01020110084523000

Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Civil Engineering

The purpose of this thesis is to study the flexural behavior of recycled aggregate concrete (RAC) continuous beams before and after strengthening. Steel plates and CFRB laminates were used as strengthening techniques. An experimental investigation was done using eight reinforced concrete beams which made of recycled aggregate and have the same dimensions, but with differences in the preloading levels and type of strengthening. Beams were divided into two control beams and two groups. The first beam was the reference beam which made of normal concrete (NC), the second control beam was made of RAC. And the first group included three beams strengthened using CFRP laminates as external strengthening. The second group included three beams also, but strengthened by steel plates. The two groups were strengthened firstly by curing and cracks filled by using two types of Epoxy. In this study, comparison between each type of strengthening was done , also the cost comparison have been occurred, and the optimum type to be used in accordance with parameters of cost and gained load-carrying capacity of the tested beams. The results show improvement in load-carrying capacity by 146% and 197% for CFRP and steel plate techniques respectively, and also show deflection decreasing by up to 82% and 87% for CFRP and steel plate's technique respectively

Issued also as CD

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