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OPPORTUNITIES FOR IBA AGGREGATES
Incinerator bottom ash (IBA) is a secondary aggregate. The generic term includes a variety of processed mineral waste that can be reused as a construction material. Secondary aggregates include, for example, excavated soil, dredged material, recycled construction and demolition waste and track ballast, as well as processed industrial by-products and waste such as steelworks slag, granulated blast furnace slag, hard coal fly ash or residues from waste incineration. The use of substitute construction materials sustainably reduces the consumption of natural resources and offers particular economic benefits. A prerequisite for the use of substitute construction materials is compliance with the environmental requirements.
During the incineration or thermal treatment of municipal waste, bottom ash is produced, which we process in one of our numerous special recycling plants. In addition to the recovery of valuable ferrous and non-ferrous metals, we produce quality-assured GRANOVA brand incinerator bottom ash aggregates (IBAA) from the mineral fraction.
When using the material, defined environmental conditions must be observed. As part of our services, we offer our customers the opportunity to check the possible uses of incinerator bottom ash and supply the required material. We also support clients in the necessary documentation for construction projects. Our secondary aggregates produced from incinerator bottom ash are subject to on-site production control and external monitoring. Test certificates document the structural properties, the controlled quality and the environmental compatibility.
Whether in terms of safety, yield or stability, our secondary aggregates are comparable to primary raw materials.
Using 3D screening technologies such as TRIPLE M and the HMT washing plant, we turn incinerator bottom ash into high-quality substitute building materials.
Our numerous videos offer an insightful introduction to the topic of secondary aggregate production from incinerator bottom ash. There is a GRANOVA animation that explains the basic processing steps. In addition, our plant videos explain the method of production using production sites in Singapore and Sluiskil as examples. The REMEX video film series provides an overall impression of the different treatment plants from drone cameras.
GRANOVA - On good grounds
The processing principle explained in easy steps
Five plants in less than three minutes
REMEX corporate film
Washing incinerator bottom ash
Special recycling qualities
Recycling explained
HEROS presents itself
Material and process control
Laboratory activities
Singapore plant
Processing of IBA in the city-state
In terms of quantity, the greatest potential for the use of incinerator bottom ash (IBA) lies in civil engineering. In Germany, the prerequisites for its use are defined in the Federal Construction Technical Rules and the German Secondary Aggregate Directive.
Environmentally friendly construction material alternative
Cost savings compared to natural aggregates
Technologically comparable to primary building materials
Quality-assured secondary construction material
Reduction in the mining of mineral raw materials such as gravel and sand
Sustainable construction in the interests of a circular economy
Realisation of climate benefits, e.g. through metal recovery during processing
Earthworks, road construction and landfill construction – for a long time, these were the main areas of application for incinerator bottom ash aggregates. But this is changing due to the rapidly advancing development of plant technology. By increasing metal recovery with our MERIT technology, we also improve the remaining mineral fraction at the same time. And through additional technologies, such as the use of IBA washing technology HMT, which is used at our subsidiary HEROS Sluiskil B. V., we achieve impressive qualities for use concrete and asphalt applications.
Moreover, we are actively committed to furthering research: The topic of cement use is intensively investigated here, for example.
A summary of current information and more details on the processing, recycling and reuse of incinerator bottom ash aggregates can be found on our GRANOVA website, which has been specifically developed for this purpose.
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