| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4913294 | Construction and Building Materials | 2017 | 7 Pages |
Abstract
Seven mixtures containing fly ash and silica fume as partial replacements of cement were analyzed. Slump, J-ring flow and compressive strength of the samples were measured. The results revealed that increase in fly ash replacement resulted in higher segregation index (SI), higher periodic segregation index (PSI) and higher instant segregation index (ISI) at specific times. However, substitution of silica fume lead to lower SI, lower PSI and lower ISI at specific times. In overall, the results indicated that general trend of the mixtures is in good agreement with each other, and positive correlation between SI with PSI and ISI exist.
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Authors
Mahmoud Nili, Mehrdad Razmara, Mojtaba Nili, Parisa Razmara,