Use of mining waste to produce ultra-high-performance fibre-reinforced concrete
| Autor: | Carlos López-Colina Pérez, Fernando López Gayarre, Jesús Suárez González, Iñigo Lopez Boadella, Miguel Ángel Serrano López, Flavio Stochino |
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| Rok vydání: | 2020 |
| Předmět: |
ultra-high performance fibres reinforced concrete
0211 other engineering and technologies Young's modulus 02 engineering and technology lcsh:Technology Article mining waste symbols.namesake Flexural strength 021105 building & construction Ultimate tensile strength General Materials Science lcsh:Microscopy lcsh:QC120-168.85 lcsh:QH201-278.5 Waste management lcsh:T 021001 nanoscience & nanotechnology Reinforced concrete compressive strength Mining industry Compressive strength lcsh:TA1-2040 flexural strength symbols Environmental science lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering Ultra high performance lcsh:Engineering (General). Civil engineering (General) 0210 nano-technology lcsh:TK1-9971 |
| Zdroj: | Scopus RUO. Repositorio Institucional de la Universidad de Oviedo instname RUO: Repositorio Institucional de la Universidad de Oviedo Universidad de Oviedo (UNIOVI) Materials Volume 13 Issue 11 Materials, Vol 13, Iss 2457, p 2457 (2020) |
| Popis: | This research work analyses the influence of the use of by-products from a fluorite mine to replace the fine fraction of natural aggregates, on the properties of Ultra-High-Performance Fibre-Reinforced Concrete (UHPFRC). Replacing natural aggregates for different kinds of wastes is becoming common in concrete manufacturing and there are a number of studies into the use of waste from the construction sector in UHPFRC. However, there is very little work concerning the use of waste from the mining industry. Furthermore, most of the existing studies focus on granite wastes. So, using mining sand waste is an innovative alternative to replace natural aggregates in the manufacture of UHPFRC. The substitutions in this study are of 50%, 70% and 100% by volume of 0&ndash 0.5 mm natural silica sand. The results obtained show that the variations in the properties of consistency, compressive strength, modulus of elasticity and tensile strength, among others, are acceptable for substitutions of up to 70%. Therefore, fluorite mining sand waste is proved to be a viable alternative in the manufacturing of UHPFRC. |
| Databáze: | OpenAIRE |
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