Compressive strength improvement for recycled concrete aggregate
| Autor: | Sarah Hasan, Faris Mohammed, Dhiyaa Mohammed, Sameh Badry Tobeia |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Aggregate (composite)
Compressive strength Materials science lcsh:TA1-2040 021105 building & construction 0211 other engineering and technologies 02 engineering and technology Composite material lcsh:Engineering (General). Civil engineering (General) 021001 nanoscience & nanotechnology 0210 nano-technology |
| Zdroj: | MATEC Web of Conferences, Vol 162, p 02018 (2018) |
| ISSN: | 2261-236X |
| DOI: | 10.1051/matecconf/201816202018 |
| Popis: | Increasing amount of construction waste and, concrete remnants, in particular pose a serious problem. Concrete waste exist in large amounts, do not decay and need long time for disintegration. Therefore, in this work old demolished concrete is crashed and recycled to produce recycled concrete aggregate which can be reused in new concrete production. The effect of using recycled aggregate on concrete compressive strength has been experimentally investigated; silica fume admixture also is used to improve recycled concrete aggregate compressive strength. The main parameters in this study are recycled aggregate and silica fume admixture. The percent of recycled aggregate ranged from (0-100) %. While the silica fume ranged from (0-10) %. The experimental results show that the average concrete compressive strength decreases from 30.85 MPa to 17.58 MPa when the recycled aggregate percentage increased from 0% to 100%. While, when silica fume is used the concrete compressive strength increase again to 29.2 MPa for samples with 100% of recycled aggregate. |
| Databáze: | OpenAIRE |
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