Abstract
Abstract The mechanical application of mortar is as an adequate solution to minimize the problems in the execution of internal and external coating of the buildings. However, few scientific studies address the gains in efficiency afforded by mechanization as well as the scarce parameters of waste, productivity and quality that could contribute to choosing this technology. This article aims to characterize the presented constructive technology and to investigate the waste of mortar (percentage of losses and consumption) and the productivity of the labor in the execution of internal and external coating for sealing in the application of wet-process sprayed mortar. Investigations were carried out in 08 construction works, which presented results of up to 150% and 0.18h/m2 for, respectively, loss of industrialized mortar and labor productivity. Thus, the present research contributes to the advancement of the knowledge about the wet-process sprayed mortar by increasing the understanding of the technology. Other important contributions are the indicators of losses and productivity and their detailed measurement, which are efficient tools to assist the companies in the decision-making by adopting this technology as well as in the management of the activities during the execution process.
Highlights
As a traditional practice, the manual application of mortar coatings has been questioned in terms of obtaining better productivity indexes and the final quality of the service
The wet-process sprayed mortar, an internationally consecrated procedure, is presented as an adequate solution to minimize the problems in the execution of internal and external coating of the buildings, as interest in the use of this technology increases (Nakakura, 2005; Paravisi, 2008; ABCP, 2012a)
In order to determine the indexes of waste and productivity, the authors were the six booklets for the constructive coating technology with wet-process sprayed mortar developed by the Construction Community under the leadership of the Brazilian Portland Cement Association (ABCP)
Summary
The manual application of mortar coatings has been questioned in terms of obtaining better productivity indexes and the final quality of the service In this scenario, the wet-process sprayed mortar, an internationally consecrated procedure, is presented as an adequate solution to minimize the problems in the execution of internal and external coating of the buildings, as interest in the use of this technology increases (Nakakura, 2005; Paravisi, 2008; ABCP, 2012a). For Asano (2016), the lack of parameters prevents the initiative from construction companies to adopt the technology and, impairs its improvement Aligned with this understanding, Zanelatto et al (2013) pointed out the need to develop detailed scientific studies on the consumption and losses of materials involved in the wet-process sprayed mortar. In view of the above, this research aims to characterize the presented constructive technology and investigate the waste of mortar and the labor productivity in the execution of internal and external coating for sealing in the application of the wetprocess sprayed mortar
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
