
Resources are becoming scarcer and more expensive worldwide driving a search for viable alternatives including the use of Alternative Fuels and Raw Materials (AFR). The cement industry began to use Residue Derived Fuels (RDF) after the oil crisis in the early 1980s. By 2010, their use had increased to about 10% replacement of the total thermal energy demand. Utilizing mainly used oil and tyres, RDF consists of different types of hazardous and non-hazardous waste from both industrial and municipal origin.
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 2 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Top 10% | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
