Aplicação do método de análise e solução de problema: estudo da variabilidade das resistências à compressão no cimento do tipo Portland

Abstract

Organizations understand that no longer simply be the best companies only in your area, because they have to compete with others from around the world. So this awareness increases competitiveness by reducing costs, improving quality, focusing on customers who are increasingly demanding. The quality control in cement production is very important, since that ensure process control and product inspection so that they can meet the requirements of the standards of the Brazilian Association of Technical Standards. Compressive strength is therefore one for each cement type, there is a Brazilian Norm which defines these values. This research sought to examine ways to reduce the variability of resistance to compression, reducing the cement produced in the deviation unit Intercement group, located in Candiota-RS. The methodological approach is to conduct a joint research (qualitative and quantitative) for manipulation of information, along with an exploratory research, conducting interviews with the people responsible for quality control and also using the participant researcher method. The survey showed some relevant points that interferes with the standard deviation of the cement, they can be: raw materials, human interference or equipment. During the survey we found some limitations, because cement compression analysis is done in another unit of the group, where it was not possible to access some calibration reports and analysis repeatability between operators. As further suggestions it is recommended that a study in the clinker chemical composition, being the main component in cement production, and have presented in its capability index process incapable, along with a study on concrete compressive strength test because We did not have the oportunudade to follow this analysis.