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The concrete constructions complicated, expensive, and exposed to risk due to several factors like environmental, design and construction, lead to appear many methods use to re-habitation concrete structures such as the technology of ferrocement sections, the technology of steel sections, the technology of Fiber Carbon Reinforced Polymer (FCRP) and the technology of nano-materials. This paper came to determine the best way to re-habitation damaged concrete beams by comparing among four methods used in Iraq. The questionnaire form is distributed to 100 professional engineers in the construction and project management field to determine the method they prefer and advise using it in terms of strength, effort, time, and cost. The result explains more than half of the test sample prefers to use the steel section technology because it gives the strength at a reasonable time, appropriate cost and they have a lot of practical experience using it. [ABSTRACT FROM AUTHOR]