Properties of cementitious composites incorporating different nano materials /
Mohamed Samir Ali Khalfalla
Properties of cementitious composites incorporating different nano materials / دراسة خواص المركبات الأسمنتية المدمجة بمواد نانونية Mohamed Samir Ali Khalfalla ; Supervised Usama A. Hodhod , Hamed M. Hadhoud , Ihab A. Adam - Cairo : Mohamed Samir Ali Khalfalla , 2016 - 151 P. : charts , facsimiles ; 30cm
Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Civl Engineering
The Investigation of cementations composites incorporating nano materials such as, nano silica (NS), nano titanium (NT), and carbon nano tube (CNT) on the different cement paste / mortar / concrete characteristics is the main purpose of this thesis. The cement paste incorporating NS, takes an important role in generating C- S- H. A 6% replacement achieves the best proportion where increasing both compression and flexure strengths by 42% and 50% respectively, while hydration process increases up to 16% as well. A 1% CNT cement replacement in mortar achieves mechanical characteristics improvement by about 27% in compression and 6% in flexure, while porosity is improved by 30%. A 0.04% CNT cement replacement in concrete achieves 42% improvement in compression under normal condition, and 36% in indirect tensile strength under normal and fire conditions respectively. Furthermore, numerical analysis using (ABAQUS) is conducted to study the strengthening effect of cracked concrete beam using epoxy resin incorporating CNT
Cementitious composite Nano silica Nano titanium
Properties of cementitious composites incorporating different nano materials / دراسة خواص المركبات الأسمنتية المدمجة بمواد نانونية Mohamed Samir Ali Khalfalla ; Supervised Usama A. Hodhod , Hamed M. Hadhoud , Ihab A. Adam - Cairo : Mohamed Samir Ali Khalfalla , 2016 - 151 P. : charts , facsimiles ; 30cm
Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Civl Engineering
The Investigation of cementations composites incorporating nano materials such as, nano silica (NS), nano titanium (NT), and carbon nano tube (CNT) on the different cement paste / mortar / concrete characteristics is the main purpose of this thesis. The cement paste incorporating NS, takes an important role in generating C- S- H. A 6% replacement achieves the best proportion where increasing both compression and flexure strengths by 42% and 50% respectively, while hydration process increases up to 16% as well. A 1% CNT cement replacement in mortar achieves mechanical characteristics improvement by about 27% in compression and 6% in flexure, while porosity is improved by 30%. A 0.04% CNT cement replacement in concrete achieves 42% improvement in compression under normal condition, and 36% in indirect tensile strength under normal and fire conditions respectively. Furthermore, numerical analysis using (ABAQUS) is conducted to study the strengthening effect of cracked concrete beam using epoxy resin incorporating CNT
Cementitious composite Nano silica Nano titanium