Holistic Innovative Solutions for an Efficient Recycling and Recovery of Valuable Raw Materials from Complex Construction and Demolition Waste (HISER)
The main objective in the HISER project is to develop and demonstrate novel cost-effective holistic solutions (technological and non-technological) for a higher recovery of raw materials from ever more complex construction and demolition waste (C&DW) by considering circular economy approaches throughout the building value chain (from End-of-Life Buildings to new Buildings).
HISER will increase use of recovered raw materials by:
1. New building products through the partial replacement of virgin raw materials
HISER partners are going to develop and optimize new cost-effective building products through the partial replacement of virgin raw materials with higher amounts of secondary high-purity raw materials recovered from complex C&DW. The most common building products will be considered for the achievement of this global objective:
- lower (up to 10% in comparison with the current patented solutions) CO2 footprint and cost-effective cements
- new cost effective green concrete containing more than 1300 kg of recycled aggregates per cubic meter of new concrete
- new cost effective bricks manufactured with a partial replacement (up to 10% (by weight) of inert sand fraction by C&D recovered ceramic material ('brick-to-brick')
- new cost effective VOC-absorbing plasterboards, fire resistant gypsum plasters and plasterboard composite panels manufactured with partial replacements (up to 50%) of natural gypsum and fibers by C&D recovered gypsum, wood fibers and filler from mineral wool
- new low cost extruded composite structural products by incorporating up to 60% of C&D recovered wood fibers, mineral wool and other recycled materials
2. Novel harmonized methodological solutions and tools
HISER project goal is to formulate, develop and test novel harmonized cost-effective methodological solutions and tools facilitating the data gathering and data processing on types, qualities and quantities of building waste materials for a highly efficient selective sorting at source during the execution of demolition and refurbishment works. Through the use of a new Smart BIM-SD tool and an innovative supply chain tracking system, more accurate information on buliding waste materials from existing buildings will be available. Those solutions will contribute to the improvement in decision making about the execution process, onsite sorting and management of subsequent waste materials arising during the demolition/refurbishment of residential and non-residential stocks. Consequently, higher amounts of onsite sorted waste materials will arise from the early beginning of the End-of-Life building.
3. Advanced technologies for the production of high-purity raw materials
One of the HISER project goals is to design, develop and optimize advanced cost-effective technologies for the production of highly-purity raw materials (purity levels ranging from 80 to 100%) from complex C&DW.
Through the adaptation, integration and enhancement of automated identification, sorting, selective electro-fragmentation and advanced comminution technologies, an upgraded recovery of pure materials contained in complex C&DW will be achieved. In addition, the development of novel inline automated quality assessment systems will provide potential users with higher levels of certainty about the quality of secondary raw materials recovered from C&DW. The global cost effectiveness of new solutions will be up to 20% higher in comparison with current recycling technological schemes. The smart combination of new HISER technological solutions will facilitate the market uptake of larger amounts of recycled raw materials for use in new building products.