Utilisation of heat-treated ornamental stone processing waste as an addition to concretes to improve compressive strength and reduce chloride ion penetration
| Autor: | M. K. Degen, G. C. Guignone, Geilma Lima Vieira, Robson Zulcão, Claudia Rodrigues Teles, S. H. M. Mittri |
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| Rok vydání: | 2018 |
| Předmět: |
Waste characterisation
Chloride penetration Materials science Metallurgy 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Building and Construction Pozzolan Chloride ion penetration 0201 civil engineering Compressive strength 021105 building & construction Heat treated General Materials Science Pozzolanic activity Civil and Structural Engineering |
| Zdroj: | Construction and Building Materials. 188:444-455 |
| ISSN: | 0950-0618 |
| DOI: | 10.1016/j.conbuildmat.2018.08.129 |
| Popis: | In the present study, the ornamental stone processing waste was heat treated at 1200 °C, with the goal of converting it into a pozzolan. At first, the treated waste characterisation was performed in order to assess its physical and chemical characteristics along with its pozzolanic activity. Then, concretes with 5% and 10% waste content were produced, and their compressive strength and chloride penetration resistance were evaluated. The heat-treated waste presented pozzolanic activity, and its addition into concrete mixtures provided an increase in compressive strength and reduction in chloride ion penetration; mainly in the mixtures with 10% addition. |
| Databáze: | OpenAIRE |
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