Abstract
The tests of Brazilian Standard NBR 15575: 2013 are part of the knowledge of the civil construction industry, but the heat and thermal shock test is innovative and does not have a consolidated history. The research objective is to analyze the testing critically and present proposals based on data meta-analysis. Results showed that the test is very inaccurate in describing the procedure and equipment. This study proposed adjustments and innovations in the test to provide more reliable results, but it does not make propositions regarding visual inspection and the number of cycles. The study concluded that the lack of information on the testing has direct responsibility for the results and that the suggested proposals have the potential to be incorporated.
Highlights
The Brazilian civil construction industry is in a period of great transformation in the technological area
Several institutions have developed or adapted test procedures for performance evaluation, the Institute for Technological Research (IPT) and some university laboratories. This attitude is encouraged by Thomaz (2013) and Villas Boas (2013) when they express that there is much to be improved in the requirements, criteria, evaluation methods, and parameters established in NBR 15575 since many construction systems are not contemplated by the standard yet
As for the other building performance tests recommended in NBR 15575, there is no significant history that stands out, mainly when used to evaluate the elements that make up the construction systems
Summary
The Brazilian civil construction industry is in a period of great transformation in the technological area. This fact was already alerted by Mitidieri Filho (1998) when he explained that methodologies for performance evaluation were brought from experiences by developed countries, where conditions are very different, giving rise to strict criteria for the existing reality Another factor that the author draws attention to is related to the tests and parameters established in Brazil in the 1980s, aimed at building systems with conventional technology, excluding, to a certain extent, innovative building systems. Several institutions have developed or adapted test procedures for performance evaluation, the Institute for Technological Research (IPT) and some university laboratories This attitude is encouraged by Thomaz (2013) and Villas Boas (2013) when they express that there is much to be improved in the requirements, criteria, evaluation methods, and parameters established in NBR 15575 since many construction systems are not contemplated by the standard yet. The main objective of this work was to perform a critical analysis of the heat action and thermal shock test, established and recommended in NBR 15575 for EVSS to evaluate the behavior regarding durability during the useful life and to present advancement proposals procedure and acceptability parameters
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