Desenvolvimento técnico e avaliação de custo e benefício do sistema construtivo de painéis sanduíche, com núcleo de garrafas PET, moldados no local
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2016-01-28
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Universidade Federal de Goiás
Resumo
Traditional construction methods are questioned, because of low productivity, waste, rework,
low standardization, among other things. Because of these problems and taking into account
environmental aspects, new building systems that make use of reusable or recyclable
materials from other industries are analyzed to verify its efficiency in technical and economic
level. In this context, the aim of the dissertation is to describe the technical development and
assess costs and benefits of the constructive system sandwich panels, molded on site, which
reuses bottles of polyethylene terephthalate (PET) to make up the core of the walls and slabs.
Concerning the technical development was described experiments and tests carried out for the
conformation of the construction system, with the configuration of its characteristics and
peculiarities, discussed the results of the tests performed, including the early to define the
structural safety of the walls and slabs together with the presentation of the theoretical model
calculation and performance evaluation for the validation. In the economic aspect, there was a
comparison between the traditional construction system and the studied system. The cost
direct was examined and observed the benefits with the help of value attributes expected to
prefabricated options construction, drawn by Cook (2013), namely: direct costs (material and
labor), time (schedule), design flexibility, work time management, quality, delivery and
conference in work, subcontractors activities in work, work safety, exercise stress testing,
health, environmental impact, LEED certification, rubble and dispensing, public relations,
marketing, maintenance (life cycle). With the help of estimators engineers, through
interviews, the steps we investigated, activities, productivity and resources needed to execute
a project in the traditional building system, building system in masonry traditional system and
building system analyzed. Was elaborated cost composition of spreadsheets and productivity
for hypothetical situations of conventional and innovative construction system of sealing
walls with slabs of residential buildings and walls and structural slabs works until two floors.
The mapping process was designed, in which to extract the consideration of potential benefits
or otherwise of the building system. Technical descriptions highlight the possibility of
constructive feasibility of sandwich panels, with core of PET bottles, molded on site. And the
evaluation of costs and benefits demonstrates its value, not so much due to the direct cost, but
in terms of building system management benefits.
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FERNANDES, G. D. Desenvolvimento técnico e avaliação de custo e benefício do sistema construtivo de painéis sanduíche, com núcleo de garrafas PET, moldados no local. 2016. 168 f. Dissertação (Mestrado em Geotecnia, Estruturas e Construção Civil) - Universidade Federal de Goiás, Goiânia, 2016.