| Autor: |
ANDREI (IGNAT), Iuliana, KONCSAG, Claudia I. |
| Předmět: |
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| Zdroj: |
Bulletin of Romanian Chemical Engineering Society; 2014, Vol. 1 Issue 2, p104-113, 10p |
| Abstrakt: |
The aim of this work was to investigate the potential use of waste catalysts from Fluid Catalytic Cracking (FCC) units as material for the asphalt mixtures. The design of an asphalt mixture consists in selecting an aggregate, filler, an asphalt binder and then their optimum combination. In this experimental study, the asphalt and the aggregate were previously selected, and the spent catalyst had to replace part of filler to a point that the characteristics of the mixture shouldn't be degraded. The grading of the mineral mix with FCC spent catalyst in different concentrations was checked. Then asphaltic mixtures were worked out with this mineral mix and the main characteristics were compared with standards: the apparent density, the water absorption, and stability. The FCC spent catalyst adding leads to the improvement of the stability and creep but should be limited at 3% wt. catalyst in the mineral aggregate, because a higher concentration will lead to worsening the grading, the water absorption capacity and creep. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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