Open AccessExperimental study of a noise reducing barrier made of fly ash
Author(s) -
Celia Arenas,
José D. Ríos,
Héctor Cifuentes,
Begoña Peceño,
Carlos Leiva
Publication year - 2021
Publication title -
materiales de construcción
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.539
H-Index - 30
eISSN - 1988-3226
pISSN - 0465-2746
DOI - 10.3989/mc.2021.00220
Subject(s) - fly ash , materials science , leaching (pedology) , polypropylene , soundproofing , portland cement , waste management , cement , noise reduction coefficient , environmental science , composite material , engineering , porosity , soil water , soil science
Although fly ash is commonly used as an additive to cement, large amounts of this material are disposed in landfills. To mitigate, it would be interesting to develop new products in which fly ash can be easily used and required in large quantities. In this work, fly ash is added to manufacture eco-friendly materials with acceptable acoustic and non-acoustic properties and a low cost. We built a barrier composed of fly ash (60 wt.%), type II Portland cement (25 wt.%), vermiculite (14.5 wt.%) and polypropylene fibers (0.5 wt.%). The barrier complied with the mechanical requirements of European standards. The sound absorption coefficient and the airborne sound insulation were determined in a reverberation room, and the barrier was classified as A2 and B3. No leaching problems were observed.