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Thus, companies must act in an ecologically responsible way so as not to threaten future survival, thus contributing to sustainable development. The present study applied the FAHP method to optimize the processes aiming to eliminate production bottlenecks in the manufacture of concrete blocks with the use of foundry sand from a metalworking industry located in the South of Brazil. Results demonstrated that the prioritized alternatives were transportation outsourcing (24.24%), while the analysis of toxicity and resistance within the norms obtained the same prioritization (22.38%), these alternatives contributed to suppress the bottleneck of production process. The industry hired a third party company with reference in the market, so there was no involvement with labor laws, in addition, the analysis of toxicity contributed with reduction costs and wasted time; consequently, reducing in 100% the chance of Contamination, due to the adoption of correct practices. Resistance within the norms helped in the reduction of the rework (98%) due to breaks and chipping. The improvements found through the FAHP method were achieved through the degree of importance of alternatives, in order to maximize the profit of the industry.<\/jats:p>","DOI":"10.3233\/jifs-17729","type":"journal-article","created":{"date-parts":[[2018,7,27]],"date-time":"2018-07-27T19:31:54Z","timestamp":1532719914000},"page":"3477-3491","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["Application of the Fuzzy-AHP method in the optimization of production of concrete blocks with addition of casting sand"],"prefix":"10.1177","volume":"35","author":[{"given":"Leoni Pentiado","family":"Godoy","sequence":"first","affiliation":[{"name":"Federal University of Santa Maria, Rio Grande do Sul, Brazil"}]},{"given":"Ant\u00f4nio Vanderlei","family":"Dos Santos","sequence":"additional","affiliation":[{"name":"Universidade Regional Integrada do Alto Uruguai e das Miss\u00f5es Campus Santo \u00c2ngelo, Brazil"}]},{"given":"Deocl\u00e9cio J.","family":"Cardoso da Silva","sequence":"additional","affiliation":[{"name":"Federal University of Santa Maria, Rio Grande do Sul, Brazil"}]},{"given":"Sergio Renato","family":"Bohrz","sequence":"additional","affiliation":[{"name":"Universidade Regional Integrada do Alto Uruguai e das Miss\u00f5es Campus Santo \u00c2ngelo, Brazil"}]},{"given":"Roger","family":"Da Silva Wegner","sequence":"additional","affiliation":[{"name":"Federal University of Santa Maria, Rio Grande do Sul, Brazil"}]},{"given":"Vanusa Andrea","family":"Casarin","sequence":"additional","affiliation":[{"name":"Universidade Regional Integrada do Alto Uruguai e das Miss\u00f5es Campus Santo \u00c2ngelo, Brazil"}]}],"member":"179","published-online":{"date-parts":[[2018,7,27]]},"reference":[{"key":"e_1_3_1_2_2","article-title":"Performance measurement to aid decision making in the budgeting process for apartment-building construction: Case study using MCDA-C","author":"Azevedo R.C.","year":"2013","unstructured":"R.C.Azevedo, et al., Performance measurement to aid decision making in the budgeting process for apartment-building construction: Case study using MCDA-C, American Society of Civil Engineers (2013). 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