Circular economy by upgraded aggregates and demolition material
|Coordinator||SWEROCK AKTIEBOLAG - Swerock AB, Malmö|
|Funding from Vinnova||SEK 8 265 700|
|Project duration||May 2019 - May 2021|
|Venture||Challenge-driven innovation - Phase 2 Collaboration|
|Call||Challenge-driven innovation - Stage 2 Collaboration 2019 (spring)|
Purpose and goal
The project’s purpose is increased circularity for excavation and demolition waste through controlled refinement to aggregates that contractors demand and authorities accept. A transport intensive linear economy is replaced by a circular system with a high logistical level, where planning and upgrading play a central role. The aim is to increase the use of recycled sand and gravel, reduce the use of rock material, glacial gravel, decrease transport of aggregates by 30 % and decrease the need to landfill. A structured analysis contributes to increased equality in the building sector.
Expected results and effects
Ballast from excavation and demolition material is demanded by the construction market. Ballast is produced at qualities and prices that successfully complement quarry material. Calculation tool Optimass is used for planning the production of ballast products from excavation and demolition materials. The products are quality assured to meet business standards and authority demands and a blue print for digitalized tracing is developed. Plans are afoot for two new refinement plants in Malmö and Stockholm. The building sector in the Nordic countries demands the products.
Planned approach and implementation
The ability of separating materials and aggregate fractions through wet sifting will be tested. Aggregates produced will be tested at construction sites. Planning tool Optimass will be developed to plan the production of ballast based on a value chain from raw material (excavation and demolition waste) to aggregate products. A digitalized tracing system for the products will be developed. The project will identify equality factors in the building sector. The project will develop a pricing model for circular aggregates and indicators for upgrading to different material qualities.