EXPERIENCE OF THE BELGIAN CONSTRUCTION SECTOR Van Dessel.pdf · C&DW RECYCLING SUCCESS RATE •...

VOLUME & VALUE

EXPERIENCE OF THE BELGIANCONSTRUCTION SECTOR

ENG. JOHAN VAN DESSEL – HEAD OF DIVISION

ENG. JEROEN VRIJDERS – DEP HEAD OF LABORATORY

DIVISION OF SUSTAINABLE DEVELOPMENT AND RENOVATION

BELGIAN BUILDING RESEARCH INSTITUTE

STOA WORKSHOP – WASTE MANAGEMENT

BRUSSELS, 15 JUNE 2016

BBRI (WTCB – CSTC)

BBRI has the following three main tasks:• to perform scientific and technical research for the benefit of its members• to supply technical information, assistance and advice to its members• to contribute to the general innovation in the construction sector, more

specifically by performing contractual research upon the request of theindustry and the authorities.

To fulfil these tasks, the BBRI pools on the expertise of more than 200 highly skilled andmotivated staff members

Belgian Building Research Institute

OVERVIEW• Established volume• Creating value• Extra volumes

Experience of the Belgian Construction Sector on C&DWasteBBRI | Sustainable Development | Johan Van Dessel 3

TOWARDS AN ESTABLISHED RECYCLINGVOLUME

The success of C&DW Recycling in Belgium

4

• > 95% recycling

C&DW RECYCLING SUCCESS RATE


Proactive, grown-upindustry

From experiments (1980s)

to > 250 installations

Well-thought policyframework

Levies, …

Trust & qualityEOL ‘avant la lettre’+ standard clauses

Densely built countryLack of space

Short on ressources

Pilot Projects:Berendrechtsluis (1986-88)

• 200 000 tons of recycled concrete aggregate• Course aggregates from demolition old quay wall• BBRI Study on use of course aggregates 4/28• Waterabsorption: 5% after 15’• Composition:

350 kg Cem (LK30),1116 kg Coarse aggregate 4/28

640 kg natural Sand

Mean Compressive strength: 39.5 N/mm²


Pilot Projects:RecyHouse (1999) http://www.recyhouse.be

• Mixed masonry concrete aggregate 7/20• Collums & floorslabs• Ready-mixed concrete:

350 kg/m³ CEM III/A 42,5 N LARiversand + 2,5 % TIXO

• Some problems with workability and pumpability on site

http://www.recyhouse.be/media/pdf/3401_f.pdfConcrete: C 20/25 & C25/30 - F3


• > 95% recycling







Levies, …



Short on ressources

C&DW RECYCLING SUCCESS RATE• > 95% recycling


Application Concrete Mixed Masonry Asphalt(without tar)

Asphalt(with tar)

Landscaping, bankingOK OK OK OK

NO

SubfoundationOK OK OK OK,

max 30 %

NO

Foundation (stony)OK OK

with cimentNO OK

with ciment en15 % sand

(OK – specialconditionsVLAREA)

[stabilisation with ciment]

Lean concreteOK OK NO NO

NO

Bituminous materialsNO NO NO OK

[limited %]NO

OK = allowedNO = Not allowed .

SB 250: ALLOWED APPLICATIONS IN ROADS


BBRI | Sustainable Development | Johan Van Dessel 10

• > 95% recycling







Levies, …



Short on ressources

C&DW RECYCLING SUCCESS RATE• Challenges

• Growing volume(s)• Demolition instead of renovation?

• Saturation of road-works industry?• Main infrastruture exists• Reuse of existing materials

• Confidence & quality• Still some contaminations• Acting at the source (demolition)

• Value creation in a highly competitivemarket

• Recycling + demolition/contracting/concrete• Cost of primary materials


FINDING VALUABLE APPLICATIONS

Creating value

13

CREATING ADDED VALUE


Using recycled concrete aggregate in new concrete

Practical experience

Standards & certification

Aggregate qualityDefined applications inconcreteCertification & qualityassurance

Research & innovation

Mixed aggregates & recycledsandNew sorting & producingtechniquesPractical implementation onsite

New NATO HQ in BrusselsDemolition of >60 buildings : 200.000 t debris

© NATO

This case study was developed within the European research project IRMA

INTEGRATED DECONTAMINATION ANDREHABILITATION OF BUILDINGS STRUCTURESAND MATERIALS IN URBAN RENEWAL

A research project supported by the European Commission under the FifthFramework Programme and contributing to the implementation of the KeyAction 4 "City of Tomorrow and Cultural Heritage" within the Energy,Environment and Sustainable Development (Contract no. EVK4-CT-2002-00092 )


New NATO HQ in BrusselsDemolition of >60 buildings : 200.000 t debris



Waste inventory before demolition

a non-profit, independent demolition management organization recognized by thepublic authorities that issues a "certificate of selective demolition" for a specific C&Dmaterial that has been selectively collected at the demolition site and subsequentlygone through a tracing system..


Whole Chain management

FOCUS ON OTHER C&DW FRACTIONS

Extra volumes

20

OTHER VOLUMES


Developing solutions for other fractions

OTHER VOLUMESAct at the source : Construction & Demolition


Researches Develops Informswtcb cstc .be

recyclage

Cradle to Cradle

OTHER VOLUMESChallenges

• Technical solutions• Matter of time?

• Logistics• How to collect?• Transporting air instead of ressources?

• Quality• Purity of material• Contaminations

• Cost/benefit• Image vs. Actual benefit


BBRI | Sustainable Development | Johan Van Dessel 26

CONCLUSION : WORKING FIELDS

Selective Demolition

ChainManagement

Other fractionsLCA/Material indicatorfor buildings

Dynamicbuildings

THANK YOU

IR. JOHAN VAN DESSEL – [email protected]

DIVISION OF SUSTAINABLE DEVELOPMENT AND RENOVATION

BELGIAN BUILDING RESEARCH INSTITUTE

STOA WORKSHOP – WASTE MANAGEMENT

BRUSSELS, 15 JUNE 2016

EXPERIENCE OF THE BELGIAN CONSTRUCTION SECTOR Van Dessel.pdf · C&DW RECYCLING SUCCESS RATE •...

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