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040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.13.05.M.Sc.2021.Mo.F
100 0 _aMohamed Sayed Ahmed Ahmed
245 1 0 _aFlexural behavior of preloaded recycled aggregate concrete beams strengthened by CFRP and steel plates /
_cMohamed Sayed Ahmed Ahmed ; Supervised Mohamed Talaat Mustafa , Khaled Farouk Elkashif
246 1 5 _aدراسة سلوك الإنحناء على الكمرات المعرضة لتحميل مسبق و المصنعة من الخرسانة معادة التدوير و المدعمة بألواح الكربون البوليمرية و ألواح الصلب
260 _aCairo :
_bMohamed Sayed Ahmed Ahmed ,
_c2021
300 _a92 P. :
_bcharts , facsimiles ;
_c30cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Civil Engineering
520 _aThe 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
530 _aIssued also as CD
653 4 _aCFRP
653 4 _aFlexural Strengthening
653 4 _aRecycled Aggregate Concrete
700 0 _aKhaled Farouk Elkashif ,
_eSupervisor
700 0 _aMohamed Talaat Mustafa ,
_eSupervisor
905 _aNazla
_eRevisor
905 _aShimaa
_eCataloger
942 _2ddc
_cTH
999 _c82774
_d82774