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Mineral wool waste back to loop with advanced sorting, pre-treatment, and alkali activation

Objective

Mineral wool within construction and demolition waste (CDW) is considered largely unrecyclable. It is formed at a rate of 2.5 Mt/year and although it is only 0.2 % of total CDW, it requires disproportionally large space due to low density. The WOOL2LOOP project aims to close this material loop by introducing novel technology and value chain to CDW sorting, pretreatment, and processing. The quality of sorted mineral wool is upgraded by comparing and combining the following approaches: pre-demolition audit, robotized demolition and sorting, novel on-site analysis with time-gated Raman spectroscopy, and smart demolition practices. Pre-treatment involves logistical considerations and milling of the mineral wool waste to sufficiently small particles. Processing utilizes alkali-activation (i.e., geopolymerization) technology to convert reactive silica and alumina of the mineral wool into new building material products. Alkali-activation in this context is a completely new approach and it enables to diversely adjust the resulting material properties. Therefore, a broad selection of products were selected for WOOL2LOOP, ranging from relatively low to high value products: hollow core and pavement slabs, facade elements, acoustic panels, dry concrete, floor screed and 3D-printing equipment, for instance. All the required technologies and product manufacturing cases will be demonstrated in large-scale pilots with a wide geographic coverage within the EU. The consortium includes several leading large construction material enterprises and innovative SMEs to cover the whole value chain. Safety, health, environmental, and economic aspects are considered throughout the project. According to the preliminary calculations, there is a strong business potential in the WOOL2LOOP concept. Finally, the constantly increasing landfilling costs (approx. 250 M€ for mineral wool in the EU) create a clear economic driver for the project.
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Coordinator

SAINT-GOBAIN FINLAND OY

Address

Stromberginkuja 2
00380 Helsinki

Finland

Activity type

Private for-profit entities (excluding Higher or Secondary Education Establishments)

EU Contribution

€ 565 250

Participants (14)

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OULUN YLIOPISTO

Finland

EU Contribution

€ 767 500

SAINT-GOBAIN ECOPHON AKTIEBOLAG

Sweden

EU Contribution

€ 339 062,50

TIMEGATE INSTRUMENTS OY

Finland

EU Contribution

€ 241 762,50

ZAVOD ZA GRADBENISTVO SLOVENIJE

Slovenia

EU Contribution

€ 285 000

TERMIT, RUDARSKO PODJETJE ZA PRIDOBIVANJE KREMENOVIH PESKOV D.D

Slovenia

EU Contribution

€ 182 000

CLOVERSTRATEGY - LDA

Portugal

EU Contribution

€ 171 077,73

INSTITUTE OF APPLIED ECONOMICS APS

Denmark

EU Contribution

€ 273 437,50

RECYCLING ASSISTANCE BVBA

Belgium

EU Contribution

€ 101 062,50

TECHNISCHE UNIVERSITEIT DELFT

Netherlands

EU Contribution

€ 678 765

XTREEE

France

EU Contribution

€ 422 625

ZAVOD 404 ZASEBNI ZAVOD ZA RAZISKAVE RAZVOJ IN INOVACIJE LJUBLIJANA

Slovenia

EU Contribution

€ 246 250

CRH NEDERLAND BV

Netherlands

EU Contribution

€ 384 562,50

TREE CAPITAL SP.Z.O.O.

Poland

EU Contribution

€ 175 895,13

DELETE FINLAND OY

Finland

EU Contribution

€ 460 687,50

Project information

Grant agreement ID: 821000

Status

Ongoing project

  • Start date

    1 June 2019

  • End date

    31 May 2022

Funded under:

H2020-EU.3.5.3.

  • Overall budget:

    € 6 716 690,50

  • EU contribution

    € 5 294 937,86

Coordinated by:

SAINT-GOBAIN FINLAND OY

Finland