| Title |
Valorization of waste from sand wash muds of an aggregates plant: Evaluation as a supplementary cementitious material |
| ID_Doc |
8240 |
| Authors |
Restrepo-Baena, O; Cabrera-Poloche, F; Tobon, JI; Escudero-Restrepo, S; Alvarez-Zuluaga, S |
| Title |
Valorization of waste from sand wash muds of an aggregates plant: Evaluation as a supplementary cementitious material |
| Year |
2020 |
| Published |
International Journal Of Applied Ceramic Technology, 17.0, 6 |
| DOI |
10.1111/ijac.13597 |
| Abstract |
The reuse and reincorporation of waste generated in the production processes are becoming increasingly important in the world, due to the double effect that it has in terms of sustainability. The first one is the environmental factor, since the impact generated is reduced by reducing the amount of wastes. The second one is the financial factor, since new products are developed that companies did not initially have, generating financial profitability. Therefore, this research evaluates the possible reuse of waste from gravel and sand wash mud of an aggregate plant as a supplementary cementitious material (SCM) after being thermally activated, seeking to promote the circular economy in the construction materials sector. The physical, chemical, and mineralogical characterization of the waste is presented and its pozzolanic activity was evaluated by means of the SAI-strength activity index. It was found that despite its low content of clay minerals, the thermally activated waste had very good performance as SCM with SAI between 81 and 106 with a tendency to increase with the age of cure. Showing that this can be a very promising potential use for this kind of waste. |
| Author Keywords |
pozzolanic activity; sand wash mud; strength activity index; supplementary cementitious material; waste reuse |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000557164800001 |
| WoS Category |
Materials Science, Ceramics |
| Research Area |
Materials Science |
| PDF |
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