This dissertation presents results of the research on the working conditions of the construction workers of the Rio de Janeiro Petrochemical Complex - Comperj, who suffered massive layoffs in the period between the end of 2014 and the beginning of 2015. The research to provide information about the occupational trajectories of these workers, observing which labor spaces they occupied before working in Comperj, and how the process of reallocation in the labor market has been developing since the work stoppage in the ComplexIn order to carry out this study, we used research instruments such as bibliographic research, started in the research project, search for recent works on the subject in the platforms, in the data banks, repositories of theses and dissertations, and, mainly, through interviews and observations made in the empirical field of research. The data collected and analyzed on the repercussions of the rupture of the contracts with the workers of Comperj, as well as their current working conditions, revealed the difficulty in insertion in formal jobs within specific areas of the civil construction sector and, therefore, the increase in informality and the depreciation of the price of its labor force. The research also showed the strategies created by the workers to try to dribble the unemployment and their expectations of hiring in the resumption of the works of Comperj.