Potentialities and challenges for steel slag aggregate use in developing countries: a systematic literature review
Name: Leonardo Dias de Abreu
Type: MSc dissertation
Publication date: 24/04/2023
Advisor:
Name |
Role |
|---|---|
| LUCIANA HARUE YAMANE | Co-advisor * |
| Renato Ribeiro Siman | Advisor * |
Examining board:
| Name |
Role |
|---|---|
| Carmenlucia Santos Giordano Penteado | External Examiner * |
| LUCIANA HARUE YAMANE | Co advisor * |
| Renato Ribeiro Siman | Advisor * |
| Rodrigo de Alvarenga Rosa | Internal Examiner * |
Summary: As a result of the growing worldwide demand for natural aggregate in the civil construction
sector, there is a search for replacement of recycled aggregates originated by the steel slag
production in public infrastructure works. However, legal, environmental, economic,
monitoring and control barriers have been reported as hindering the use of this waste, leaving
its destination for industrial landfills in developing countries. Thus, to shed light on the main
difficulties reported in the literature, a systematic bibliographic and document review was
carried out, delimited in the period 2019 to 2022, using the Smart Bibliometrics tool. Among
the main barriers, the lack of public policies or transparency and instability of those that exist,
unavailability of data on industrial waste management, lack of specific environmental
guidelines for the reuse and recycling of these wastes, challenging economic conditions, aging
infrastructure and structures stand out, decision support tools unavailable to support and guide
management decisions. From this, was represented through a cause-and-effect diagram, the
interrelations between the elements identified in the literature and the use of steel slag. The
results, based on this research, demonstrated that the political and normative elements were
those that presented the highest frequency in citations regarding the promotion of the steel slag
use, with a significant presence verified in 58% of the articles, followed by the elements
economic (24%), operational elements (13%) and finally physical elements (5%). Political and
normative elements, specifically in terms of obligation, are preferred and generally have greater
relevance in relation to the others, being the ones that have most influenced greater use, in
addition to presenting a series of potentially positive aspects for the use of alternative
aggregates.
