A CIRCULAR ECONOMY FOR THE CONSTRUCTION SECTOR: The Gypsum Example

Views of Stakeholders

Selective Demolition – The preferred Route for Recycling

17 November 2015, Brussels, European Parliament

Presented by: Jean-Yves Burgy, General Manager of RECOVERING SARL

� GtoG pilot project 1: Brussels, Belgium� Deconstruction company: Recycling Assistance

� 2 floor building, offices from 1990

� 2 800 m² of double-sided plasterboard partition with a metallic frame, infilled with mineral wool insulation

� 43 t of recyclable gypsum-based waste

� Recycling location: Kallo – BE (NWGR)

� Manufacturing location: Kallo – BE (GYPROC)

5 pilot projects in 4 different countries

Deconstruction

Transport

Recycling

Transport

Reincorporation → Mechanical, dismantling and loading

� GtoG pilot project 2: Paris, France� Deconstruction company: Pinault&Gapaix

� 3 floor commercial building from 1998

� 340 m² of gypsum block partition, double-sided plasterboard partition with a metallic frame, infilled with expanded polystyrene, plasterboard ceiling with a metallic frame

� 9,38 t of recyclable gypsum-based waste / 7, 80 t of non recyclable

� Recycling location: Vaujours – FR (NWGR)

� Manufacturing location: Vaujours – FR (Placoplatre)

5 pilot projects in 4 different countries

Deconstruction

Transport

Recycling

Transport

Reincorporation → Manual dismantling and sorting, mechanical loading

� GtoG pilot project 3: London, the United Kingdom� Deconstruction company: Cantillon

� 12 floor building, offices, from the 1980’s

� 8 640 m² of plasterboard partition, metal frame, glass/rock wool insulation

� 50 t of recyclable gypsum-based waste

� Recycling location: Avonmouth – UK (NWGR)

� Manufacturing location: Bristol – UK (Siniat)

5 pilot projects in 4 different countries

Deconstruction

Transport

Recycling

Transport

Reincorporation → Manual dismantling and sorting, mechanical loading

� GtoG pilot project 4: Levallois Perret, France� Deconstruction company: Occamat

� 9 floor building, offices, from 1968

� 6 740 m² of gypsum block partition, Double-sided plasterboard partition with a metallic frame, infilled with mineral wool

� 67,52 t of recyclable gypsum-based waste

� Recycling location: Auneuil – FR (Siniat)

� Manufacturing location: Auneuil – FR (Siniat)

5 pilot projects in 4 different countries

Deconstruction

Transport

Recycling

Transport

Reincorporation → Manual dismantling and sorting, mechanical loading

� GtoG pilot project 5: Graben, Germany� Deconstruction company: KS Engineering

� 5 single-floor building, offices, from 1965

� 3 450 m² of plasterboard ceiling, wooden frame, mineral wood insulation; plasterboard laminate, metallic frame; Plasterboard partition, wooden frame, wood wool

� 23,64 t of recyclable gypsum-based waste / 13 t of non recyclable

� Recycling location: Werkendam – NL (GRI)

� Manufacturing location: Iphofen – DE (Kanuf KG)

5 pilot projects in 4 different countries

Deconstruction

Transport

Recycling

Transport

Reincorporation → Manual dismantling and sorting, manual and mechanical loading

� European handbook on best practices in audit prior to deconstruction of buildings based on:

� Analysing of different waste audit reports carried out in different European countries

� Elaboration of a state of the art waste audit methodology

� Test and improvement of the methodology on the pilot projects and other jobsites

� Catalogue of the main gypsum-based products likely to be present on demolition jobsites

� Advantages of audits:

� Better identification of waste streams and outlets

� Better preparation of the works

� Upsides in terms of safety

� Monitoring of the costs

Waste audits prior demolition

� Technical advantages of selective demolition versus demolition

� Segregation and massification of each kind of waste �prevent waste cross contamination

� Optimisation of the logistics onsite

� Better valorisation of each stream

� For gypsum-based waste

� For concrete

Main conclusions coming from the pilot projects

� Economical advantages for demolition companies: study of a real case of a French refurbishment project

� GtoG pilot project 4: Levallois Perret, France – Demolitioncompany: Occamat

� Assessment of time and related cost: a three step approach for the operation on siteStep 1: dismantling process

Step 2: sorting and storing in situ

Step 3: loading of the skips

� Assessment of cost for transportation and treatmentStep 4: transportation to the recycling facility

Step 5: cost for the treatment

� Development of a complete methodology to have the most precise cost related to theses operations

Main conclusions coming from the pilot projects

Weight per square meter

Kg% of weight

Metal frames 1,8 5,5%

Plasterboard BA 13

20,4 93,1%

Insulation 2 1,4%

Partition 24,2 100%

� Cost per square meter for the on site operation: 2,30€/m2 of partition for the selective demolition versus 2,34€/m2 for the demolition

� Cost for the transport and treatment and comparison of the different routes

� A difference of 50% appeared between the two routes

� Economical advantages for demolition companies

� Similar costs for both demolition and selective demolition practices

� Savings made on the route: landfilling more expensive, especially in the countries with a high landfill tax

Main conclusions coming from the pilot projects

QuantityCost for storage

and transportation per ton

Cost of treatmentper ton

Total costs

Total costsper m2 of partition

Metal frames 2,7 t 17 €/t - 150 €/t - 353 €

Plasterboard BA 13 45,1 t 20 €/t 55 €/t 3 379 €

Mineral wool 0,7 t 199 €/t 95 €/t 200 €

Total for sorted material

48,4 t22 €/t 44 €/t 3 225 € 0,48 €/m²

Total for mixed waste (entire partition) 33 €/t 99 €/t 6 389 € 0,95 €/m²

� Main levers for promoting deconstruction:

� Linked to eco-design and construction

� Responsibility of the manufacturers regarding the products they are putting on the market

� Consideration of the lifecycle of the building and considerations regarding the “design for deconstruction” approach by the project owners and project managers

� The way the gypsum-based systems are implemented by the construction company is decisive to allow its recycling

� Linked to the deconstruction of the gypsum-based systems and to the gypsum-based waste management until their final outlet

� Importance of the lead of the diagnoses of the hazardous materials by the project owners

� Importance of the lead of waste audits as best as possible

� Selective demolition techniques adapted to the system for a better efficiency and relevant one-stream storage onsite by the demolition companies

� Measures to guaranty that the loads will not be contaminated by other wastes on the transfer station of waste sorting companies

Main conclusions coming from the pilot projects