Economic Engineering: Economic Viability of Industrialized Mortar Applied with Projector and Applied in the Conventional Form

The present article analyzed the return and risk bound to the execution of coating in mortar, from the two possibilities of execution, being mechanically designed or manually, plated by hand. The main difference between the two mortars is in the execution process, being the hand-plated mortar made by the mason with the aid of a spoon, allowing the application and the closing of the mortar, already for the execution of the projected mortar uses mechanical equipment to apply the mortar to the substrate. It is an applied research as to its nature, descriptive as to its purpose, case study on the strategy to approach the problem. For the development of this research was assumed a commercial / residential venture, which will be coated with industrialized mortar, with an estimated demand of 9,497 m² or 189,94 m³ and estimated 20 days of service execution per month. As for productivity, for the projected mortar coating, will run 60.00 m² per day and worked 5 hours / day. As for the productivity of the coating of hand-plated mortar, will run 20.00 m² per day and worked 8 hours / day. Regarding the composition of costs for services and labor, the unit costs of the SINAPI Reference Worksheet (National System of Prices and Indices for Civil Construction), of the period of preparation in August / 2018, were used. the information and data necessary for structuring the projected cash flow in the respective periods (24 months), using a TMA of 8% pa For the analyzes of risks and returns involved, the Multi-Index Methodology was used. The two executive methods have a high return. The confirmation of the values is based on the Monte Carlo simulation using the Crystal Ball software, which is considered as uncertain variables, or input variables for the simulation, the quantity 9,497 m² of coating for 24 months of execution.