Re-use , recycling and future of demolished buildings

Re-use, recycling and future of demolished buildingsBelgium – FlandersWouter CordieJo LodewijckSawanya TongboonrowdNiels VillersSien Verheyen

Table of content Introduction:

Flanders OVAM and laws Other organisations

Demolition methods Selective demolition Recycling

Conclusion

Table of contentIntroduction

Flanders OVAM and laws Other organisations

Demolition methods Selective demolition Recycling

Conclusion

Flanders 6 million inhabitants

Recycling ratio of 90% 11 million tons of recycled C&D waste

OVAM Public Waste Agency of Flanders Founded in 1981 Prepares legislation regarding waste management Has means such as:

Subsidy Tax Sensibilisation Industry engagement Etc. http://www.ovam.be

OVAM Project «  environmentally responsible material

use and waste management of buildings  » Transition to sustainable material use

Since July 2007 5 steps1. Eco friendly regulations2. Selective demolition3. Rise the recycling quality of aggregates4. High quality stones fraction re-use5. Close material life cycle of some C&D waste streams in an efficient way

OVAM & international networks Cradle to cradle network

Austria, Hungary, Italy, The Netherlands, France, Finland, United Kingdom, Romania, Slovenia

Waste prevention & management Financed by European Union

Resource Efficiency Alliance Program of EPE ( European Partners of Environment) Promote a low carbon and resource efficient economy

OVAM’s Materials Decree Only in Flanders (14th December 2011) Goal : decrease netto impact of the

waste cycle Environment Health

Sustainable material management Based on a 5 steps ladder

5 steps ladder material decree1. Prevention

Eco-design Ex: Ecolizer instrument

2. Preparation of re-use Controle, washing old material Back primair material Ex: Second hand shops

3. Recycling Closed the cyclic material circulation Ex: Wood as fuel

4. Other forms of application To generate energy Ex: Incenirator

5. Removal policy Flexibility to success

Other organizations VITO

Research center of clean technology OCW

Research center of road construction VLAREM

Flemisch regulations for the environment VLAREA

Flemish regulations relating to waste prevention and management

Table of content Introduction:

Flanders OVAM and laws Other organisations

Demolition methods Selective demolition Recycling

Conclusion

Demolition

How does it work? Building waste

Stone fractionsConsists of: concrete rubble, masonry, a mixture of both, ceramic & natural stone

Non-stone fractionsConsists of: wood, plastics, scrap metal, paper and cardboard, waste gypsum, bituminous materials such as roofing, insulation, etc. Other residues (container waste)Sorting necessary for the different waste streams

Selective demolition Selective collection of different flows of waste Happens when buildings get demolished Waste that

gets collected separately is easier and/or cheaper to recycle

Use of recycled goods reduces the use of primary goods

Selective demolition is: Smart Ecologically viable Economically viable

Companies with selective demolition

Selective demolition Selective demolition is not yet

integrated (not yet sufficiently established) OVAM obligated the composition of a

demolition inventory Buildings with a volume over 1000 m³ Different function than accommodation

Selective demolition Recycling has different advantages

Saving raw materials Saving energy when producing products with recycled

materials Reduction of external dependence of raw materials Creation of new jobs (labor-intensive process)

Recycling process: Pollution of the recycled materials Quality loss Not always possible to use recycled material (low quality)

Concrete -> foundation materials Magazines -> toilet paper

Recycling ,(voorbeelden geven- concretiseren) Management system

Collecting and transport debris Acceptance debris Production recycled granules Transport recycled granules Use recycled granules

Recycling ( kan je iets zeggen over de reclycling van bouwmetarialen/ van materialen van gesloopte gebouwen) – collecting and transporting debris

Individuals Container parks Sorting companies Container services

Contractors Licensed establishments Waste identification forms

Recycling – Acceptance of debris Acceptance and storeage on basis of

Kind of debris Origin and composition Equipment processing plant

Certain streams of debris need seperate approval Debris from a fire Debris from soil remediation works Debris from the sieving of soils that do not meet VLAREBO Debris from the physicochemical cleaning.

Recycling – production of recycled granules VLAREA

‘Flemish regulations relating to waste prevention and management’

Unitary regulations

Environmental friendly quality Structural requirements Certification of recycled granules

Environmental license

Recycling – transportation of recycled granules Delivery to location

Delivery form provided by the certificate holder The builder can not put the granules on the

market

Intermediate storage is prohibited For example on premises of the contractor or another licensed location

Recycling – use of recycled granules Following applications are allowed

Applications for which a harmonized European framework exists

Applications based on the standard specifications of the Flemish region

Mixing unit for hydraulically bound mixtures Applications as building material in a "work" based on the decree of 9 May 2008 laying down the list of architectural land-use of excavated soil (non-exhaustive list)

Table of content Introduction:

Flanders OVAM and laws Other organisations

Demolition methods Selective demolition Recycling

Conclusion

Conclusion Flanders state-of-the-art in recycling

since 30 years Initiatives

Material Decree Project «  environmentally responsible

material use and waste management of buildings  »

Encouraging selective demolition Still evolving

Evolution of recycled company waste (1992 – 2008)

Source: www.OVAM.be

Evolution of the OVAM budget (1981-2010)

Source : www.OVAM.be

Questions?