Shrinkage of earth concrete amended with recycled aggregates and superplasticizer: Impact on mechanical properties and cracks
| Autor: | Joanna Eid, Jean Marc Kanema, Said Taibi |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Mechanical Engineering 0211 other engineering and technologies Superplasticizer 02 engineering and technology Bending 021001 nanoscience & nanotechnology Compressive strength Mechanics of Materials 021105 building & construction Ultimate tensile strength lcsh:TA401-492 lcsh:Materials of engineering and construction. Mechanics of materials General Materials Science Composite material 0210 nano-technology Shrinkage |
| Zdroj: | Materials & Design, Vol 109, Iss, Pp 378-389 (2016) |
| ISSN: | 0264-1275 |
| Popis: | The study investigates shrinkage behaviour of a new earth concrete amended with various volume percentages of recycled concrete aggregates (RCA). Two preparations techniques, in situ (industrial) and laboratory (manual), were used. Shrinkage was evaluated using a one-dimensional method and a 2D image analysis. Shrinkage decreases with RCA percentages. Industrial vibration has also an impact on shrinkage. Adding superplasticizer reduces crack appearance without affecting the global shrinkage. Mechanical tests were performed to evaluate the impact of RCA. Compressive strength increases with the addition of RCA, and the bending tensile strength remains quasi constant. Keywords: Recycled concrete aggregates, Earth concrete, Superplasticizer, Shrinkage, Cracks, Image analysis |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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