Substitution of natural mineral building materials by substitute building materials in earthworks and civil engineering
- Legal obligation to recycle (mineral) waste of the highest possible quality (§7 KrWG)
- Statutory recycling rate for non-hazardous construction and demolition waste of 70 wt.% by 2020 (Section 14 KrWG)
- Reduction of the consumption of finite primary raw materials and protection of valuable landfill areas.
- Sustainable use of materials and creation of a closed cycle economy
BUT: Still low acceptance and lack of experience with RC building materials!
- Further development of large-scale processing methods for the production of defined material groups
- Determination of the soil engineering properties of different RC building materials by laboratory tests; comparison with natural building materials
- Tests on compactibility with typical compaction equipment used in earth-moving practice -> Derivation of installation recommendations
- Checking and, if necessary, adapting the compaction requirements and test methods of the earthworks regulations for RC building materials
- Determination of special areas of application for RC building materials (use of substance-specific properties, e.g. the water absorption capacity of porous materials for soil improvement)