Experimental investigation of Peruvian scallop used as fine aggregate in concrete
| Autor: | Gaby Ruiz, Shirley Carrillo, Christian Varhen |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Aggregate (composite)
Materials science Maximum level 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Building and Construction 0201 civil engineering Properties of concrete visual_art 021105 building & construction Scallop Range (statistics) visual_art.visual_art_medium Particle Seashell General Materials Science Particle size Composite material Civil and Structural Engineering |
| Zdroj: | Construction and Building Materials. 136:533-540 |
| ISSN: | 0950-0618 |
| DOI: | 10.1016/j.conbuildmat.2017.01.067 |
| Popis: | To evaluate the impact of using Peruvian scallop crushed seashell (CSS) as fine aggregate a range of 0.75, 0.55, 0.45 and 0.41 w/c ratio concretes were tested. The hardened and fresh properties of concrete at 7, 28 and 90 day periods were investigated. The experimental results show that the effects of CSS replacement on concrete properties depend on the size particle distribution of the global aggregate after replacement, and that the angular shape of CSS particles can contribute to a better arrangement. The maximum level of CSS replacement is variable and limited to a maximum for a given size of CSS particles and a w/c ratio. A maximum of 40% replacement can be suggested in a range of 1.19–4.75 mm CSS particle size, but 5% can be considered optimal for all cases. It means that cleaned CSS can be used as fine aggregate replacement in conventional concretes. |
| Databáze: | OpenAIRE |
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