| Title | Case Study on Secondary Building Materials for a Greener Economy |
|---|---|
| ID_Doc | 26973 |
| Authors | Simon, FG; Kalbe, U |
| Title | Case Study on Secondary Building Materials for a Greener Economy |
| Year | 2023 |
| Published | Applied Sciences-Basel, 13, 10 |
| Abstract | Half of global material consumption involves mineral material. The circularity is still low so that the enhanced use of secondary building material is required to close loops. Three different secondary building materials are discussed based on exemplary research results: construction and demolition waste (C&D waste), soil-like material, and incineration bottom ash (IBA). Focus was placed on the environmental compatibility of the materials examined mainly by standardized leaching tests. C&D waste was investigated after a wet treatment using a jigging machine, and soil-like material and IBA were characterized with respect to their material composition. Their environmental compatibilities in particular were studied using standard leaching tests (batch tests and column tests). It was concluded that soil-like material can mostly be utilized even when the precautionary limit values set are exceeded by a factor of less than two. For C&D waste, the fine fraction below 2 mm and the content of brick material is problematic. IBA fulfills quality level "HMVA-2" following German regulations. Improved levels of utilization might be achievable with better treatment technologies. |
| https://www.mdpi.com/2076-3417/13/10/6010/pdf?version=1684135032 |
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