Development of lightweight concrete subfloor with ethylene vinyl acetate (EVA) aggregates waste to reduce impact sound in flooring system

Comfort and habitability are requirements for housing quality, affected by underfloor system. Thus, this study aims to design lightweight concrete slabs underfloor with the use of ethylene vinyl acetate (EVA) aggregates, with two grain sizes of conventional aggregates replaced with EVA. The experime...

Full description

Autores:
Pacheco, Fernanda
Krumenauer, Marcelo
Medeiros, Daniel Reis de
Nunes, Maria Fernanda
Tutikian, Bernardo Fonseca
Tipo de recurso:
Article of journal
Fecha de publicación:
2017
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/60412
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/60412
http://bdigital.unal.edu.co/58744/
Palabra clave:
62 Ingeniería y operaciones afines / Engineering
EVA waste
reduce solid waste
acoustic performance
impact sound
flooring systems
lightweight concrete
residuo de EVA
reducir los residuos sólidos
comportamiento acústico
sonido del impacto
sistemas de pisos
hormigón ligero
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
Description
Summary:Comfort and habitability are requirements for housing quality, affected by underfloor system. Thus, this study aims to design lightweight concrete slabs underfloor with the use of ethylene vinyl acetate (EVA) aggregates, with two grain sizes of conventional aggregates replaced with EVA. The experimental counted on four unit mixes, varying the ratio between EVA coarse and fine aggregates and natural aggregates. The underfloor plates were molded with thickness of 3, 5 and 7 centimeters, and 3cm plus 1cm of conventional coating. Slabs were submitted to specific mass and standardized impact sound pressure level tests. Results showed a correlation between specific masses and impact sound values, being that 7cm thickness slabs with smaller specific mass, with total aggregate replacement, presented noise intensity reductions of 17dB in comparison to same thickness slabs with natural sand and smaller content of EVA coarse aggregate; and a 28dB reduction in relation to the slab without underfloor.