1. ‘Green’ concrete in Denmark
2. How to produce high quality concrete mixes with recycled concrete aggregate, Construction Waste Recycling and Civil Engineering Sustainable Development.;Razaqpur;Proceedings of the ICWEM,2010
3. 3. ACI Committe 555: Removal and Reuse of Hardened Concrete - ACI 555R-01, ACI Committee, Detroit, (2001).
4. 4. EPA - U.S. Environmental Protection Agency: Inventory of U.S. Greenhouse Gas Emissions and Sinks (EPA 430-R-11-005), EPA (U.S. Environmental Protection Agency), Washington, (2011).
5. 5. Maier, P.L.; Durham, S.A. (2012) Beneficial use of recycled materials in concrete mixtures. Construc. Build. Mat. [29], 428–437.