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Abstract
Use of Micro-composite Multi-structural Formable Steel, commercially known
as “MMFX”, as a replacement for convention steel is gaining popularity in many concrete structures.
The high-corrosive resistance nature and highstrength characteristics of the MMFX rebars could provide additional service life to concrete structures in areas that are prone to severe environmental conditions.
The research program presented in this thesis was designed to study the
flexural behavior of T-section concrete beams reinforced by MMFX rebars.
The research presents the experimental program carried out at the Reinforced
Concrete Structures laboratory at Ain Shams University, Cairo, Egypt.
A total of eight full-scale concrete beams were constructed and tested.
All beams were T-section of 500 mm flange width by 80 mm thick.
The web was 250 mm wide by 400 mm deep. The nominal length of all beams was 4000mm.
Six beams were reinforced by MMFX rebars in the tension side while the remaining two beams were reinforced by conventional steel rebars Grade (40/60) in the tension side.
The beams were equally reinforced by conventional steel rebars Grade (40/60) on the compression side.
All beams were tested under static
loading conditions to failure in order to investigate the behavior during the precracking, cracking, post-cracking, ultimate capacities, and modes of failure.