A new method to quantify the robustness of self-consolidating grouts
| Autor: | Tahir Kemal Erdem, Esra Bilgiç, Züleyha Kanpara Cıvaş |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
0211 other engineering and technologies Superplasticizer 020101 civil engineering 02 engineering and technology Building and Construction 0201 civil engineering Robustness (computer science) Fly ash 021105 building & construction General Materials Science Cementitious Biological system Civil and Structural Engineering |
| Zdroj: | Construction and Building Materials. 229:116849 |
| ISSN: | 0950-0618 |
| Popis: | There are different methods in literature to evaluate the robustness of highly fluid cementitious mixtures. However, no one of them gained widely acceptance due to the relative advantages and disadvantages involved in each of them. Therefore, there is still need for further research on this topic. This study proposes a new and relatively easy method for quantifying the robustness of self-consolidating grouts by calculating so-called robustness indices. Due to the more difficulty to produce robust mixtures for highly fluid mixtures obtained by very powerful chemicals, the method is based on the variations in the superplasticizer (SP) type and amount. Mineral admixture (fly ash or limestone powder) usage and water-to-binder ratio (w/b) were other parameters investigated in this study. It was found that SP type was the most important factor affecting the robustness. The effect of w/b was less when compared to SP type. The mixtures containing naphthalene-based SP were more robust than those containing polycarboxylate-based SP. Mineral admixture type and amount had the least effect on robustness. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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