Industrial wastes as alternative raw materials to produce eco-friendly fired bricks
| Autor: | V.G. Jiménez-Quero, O T Maza-Ignacio, K Campos-Venegas, J Guerrero-Paz |
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| Rok vydání: | 2017 |
| Předmět: |
History
Brick Absorption of water Materials science Silica fume Metallurgy 0211 other engineering and technologies 02 engineering and technology Atterberg limits 021001 nanoscience & nanotechnology Computer Science Applications Education Compressive strength Flexural strength Fly ash 021105 building & construction Composite material 0210 nano-technology Shrinkage |
| Zdroj: | Journal of Physics: Conference Series. 792:012065 |
| ISSN: | 1742-6596 1742-6588 |
| Popis: | This work focuses on the incorporation of sugarcane bagasse ash (SCBA) and silica fume (SF) wastes as an alternative raw material into clay bricks, replacing clay by up to 40 wt.%. Fly ash (FA) was used as reference. The plasticity of the batches was determined by Atterberg's consistency limits. Bricks were produced by uniaxial pressing and fired a 900 and 1000°C. Physical properties (fired shrinkage, water absorption, apparent porosity and Initial water absorption rate) and mechanical properties (compressive strength and flexural strength) as function of the firing temperature and type waste were investigated. The results showed that wastes into clay body increase its global plasticity. 80%Clay-20%SCBA mixture has the lower linear shrinkage. After firing process, the brick produced with clay-SCBA show the higher water absorption and apparent porosity, regardless of the firing temperature. The brick produced with 60%clay-40%SF show the water absorption and apparent porosity similar to control bricks. The SCBA waste additions tend to decrease the mechanical strength of the clay bricks, therefore amounts of 40% SCBA waste should be avoided because it reduce the mechanical strength of the red fired bricks. The fired bricks with 40% SF, firing a 900°C show mechanical properties similar control bricks. |
| Databáze: | OpenAIRE |
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