Properties and durability of HPC with tyre rubber wastes
| Autor: | Francisco de Assis Anjos Azevedo, Fernando Pacheco-Torgal, J. L. Barroso de Aguiar, Carlos M. G. Jesus, Aires Camões |
|---|---|
| Přispěvatelé: | Universidade do Minho |
| Rok vydání: | 2012 |
| Předmět: |
Materials science
Sulphuric acid attack Capillary water absorption 0211 other engineering and technologies 02 engineering and technology Strength loss 12. Responsible consumption Natural rubber 021105 building & construction Mechanical strength Data_FILES General Materials Science Metakaolin Civil and Structural Engineering Cement Science & Technology Waste management Building and Construction 021001 nanoscience & nanotechnology Durability Tyre rubber wastes Fly ash visual_art visual_art.visual_art_medium 0210 nano-technology Concrete |
| Zdroj: | Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
| ISSN: | 0950-0618 |
| DOI: | 10.1016/j.conbuildmat.2012.02.062 |
| Popis: | Author's personal copy An estimated 1000 million tyres reach the end of their useful lives every year and 5000 millions more are expected to be discarded in a regular basis by the year 2030. Up to now a small part is recycled and millions of tyres are just stockpiled, landfilled or buried. This paper presents results about the properties and the durability of HPC with partial replacement of sand by tyre rubber wastes. Fly ash and metakaolin are used as partial cement replacement. The durability performance was assessed by means of capillary water absorption and resistance to sulphuric acid attack. The results show the existence of a synergetic effect between fly ash and metakaolin that minimizes the strength loss associated to the use of rubber waste. Results also show that is possible to use rubber waste up to 15% and still maintain a high resistance to acid attack. The mixes with 45% fly ash and 15% metakaolin show a much higher resistance to sulphuric acid attack than the reference mix independently of the rubber waste content. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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