| Title | Utilisation of Ceramic Stoneware Tile Waste as Recycled Aggregate in Concrete |
|---|---|
| ID_Doc | 27781 |
| Authors | Roig-Flores, M; Reig, L; Albero, V; Hernández-Figueirido, D; Melchor-Eixea, A; Pitarch, AM; Piquer, A |
| Title | Utilisation of Ceramic Stoneware Tile Waste as Recycled Aggregate in Concrete |
| Year | 2023 |
| Published | Buildings, 13.0, 8 |
| Abstract | The construction industry has a significant environmental impact and concrete production is responsible for a large part of CO2 emissions and energy consumption. This study focused on the reutilisation of a specific type of tiles ceramic waste (TCW), composed only of stoneware and porcelain stoneware tiles, hereafter referred to as ceramic stoneware (CS), as recycled aggregate in concrete. Natural limestone and CS aggregates (sand and gravel) were characterised (particle size distribution, water absorption, resistance to wear, density and X-ray diffraction analyses) and recycled aggregate concrete (RAC) was prepared by replacing 20, 50 and 100 vol.% of sand and gravel, separately. Concrete workability generally improved with CW addition, especially when replacing natural gravel. Although the compressive strengths of the concrete specimens prepared with recycled sand were slightly lower than those of the reference specimens, similar or better results were recorded with the recycled CS gravel. In consonance, the RAC developed with recycled gravel obtained lower water penetration depths than the reference concrete. No significant variation in tensile strength was observed when varying CS content (values within the 2.33-2.65 MPa range). The study contributes to sustainable construction practices and circular economy by promoting the valorisation and reutilisation of industrial waste and reducing the consumption of natural resources. |
| https://www.mdpi.com/2075-5309/13/8/1968/pdf?version=1690877753 |
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