Aplicação da filosofia Lean Construction em uma obra de um Conjunto Habitacional.

Abstract

Civil construction can be characterized by high levels of waste indicators, low quality products, high occurrence of construction pathologies, inefficient and ineffective processes and, therefore, shows itself as a promising field to the results that can be obtained through the application of the concepts of lean construction. The methodology of lean construction was born from the need to obtain a product with lower costs and at the same time of higher quality. Through an on-site investigation, observing the construction process, the supply chain and the trace production sector, it is possible to perceive existing stoppages, totaling a value of 60 hours stoppages for material delay between the months of January and March. With the improvement projects developed based on the Lean Construction methodology between the period of April and August, it was observed the impacts referring to average productivity, labor and raw material costs and general production costs. Between the months of January and March, the groups presented distinct averages of production, reaching an average surrounding value of 9.5 days for the manufacture of a housing unit by the Conquista group, while 9.8 days by the Videira group. On the other hand, with the implementation of the improvement projects, the results of increased productivity and standardization were evidenced in the months of June, July and August, where the groups obtained a uniform productivity of 8 days. it is also observed the reduction in the real cost of labor in relation to what was budgeted, reaching the range of average difference of R$ 5. 029,90 in August, that is, of 25% In relation to the cost of raw material it is possible to analyze that the behavior of the results had no significant influence, however, from the month of May the results were satisfactory, presenting a reduction with levels above 5%. While in March, the company had a loss on its medium production cost of US$ 7.600,63, in August it had a recuperation with a gain of US$ 1968,98 on its medium production cost.