Use of Recycled Aggregates from Demolition Wastes in Concrete: Acoustic Properties
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Title: | Use of Recycled Aggregates from Demolition Wastes in Concrete: Acoustic Properties |
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Authors: | Rodríguez, Carlos | Sánchez, Isidro | Martínez, Salvador | Carbajo, Jesús | Ramis-Soriano, Jaime | García-Legaz, Ignacio |
Research Group/s: | Durabilidad de Materiales y Construcciones en Ingeniería y Arquitectura | Acústica Aplicada |
Center, Department or Service: | Universidad de Alicante. Departamento de Ingeniería Civil | Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal |
Keywords: | Recycled aggregates | Pore structure | Sound absorption |
Knowledge Area: | Ingeniería de la Construcción | Física Aplicada |
Issue Date: | 2019 |
Publisher: | WIT Press |
Citation: | WIT Transactions on Engineering Sciences. 2019, 124: 37-47. doi:10.2495/MC190041 |
Abstract: | The construction industry is one of the most demanding in terms of natural resources, and of the most polluting in terms of emissions to the atmosphere. Concrete is one of the most used materials in engineering and is a paradigm of the consumption of rocks for aggregates, used in polluting industries such as cement production. In trying to reduce the consumption of natural resources, efforts are being made to use waste as recycled aggregates. This fact has evident economic and environmental advantages, but it has a drawback. The concrete prepared with recycled aggregates has lower mechanical strength than ordinary concrete. This decrease of resistance is mainly due to a higher porosity exhibited by the materials from recycled aggregates. But the increase of porosity can be a great advantage in terms of sound absorption. In this work several types of recycled aggregates have been tested, paying special attention to their acoustic behaviour and pore structure. The results show that concrete made with recycled waste are effective in absorbing sound. It might become an alternative to traditional concrete, since recycling samples behave similarly or better in terms of sound absorption, using recycled materials, and increasing their life-cycle. The measurement of acoustic properties, as well as density, has already been undertaken in previous works. This work presents an image analysis methodology that is completely novel, and that helps to understand the acoustic behaviour of concrete elements. |
URI: | http://hdl.handle.net/10045/99859 |
ISSN: | 1743-3533 |
DOI: | 10.2495/MC190041 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © 2019 WIT Press |
Peer Review: | si |
Publisher version: | https://doi.org/10.2495/MC190041 |
Appears in Collections: | INV - DMCIA - Artículos de Revistas INV - Acústica Aplicada - Artículos de Revistas |
Files in This Item:
File | Description | Size | Format | |
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2019_Rodriguez_etal_WITTransEngSci.pdf | 1,21 MB | Adobe PDF | Open Preview | |
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