alternatives for materials from an eol building, evaluated...
TRANSCRIPT
Alternatives for materials from an EOL building,
evaluated with LCC & LCA
Hu, Mingming Miranda-Xicotencatl, Brenda
Ita-Nagy, Diana Prado, Valentina*
Luxembourg, 04.09.2017
European Convention Center, 03-06.09.2017
LCM 2017: Designing sustainable technologies, products and policies: from science to innovation
CDW in EU
• CDW (Construction & Demolition Waste) makes 1/3 annual waste generation in EU
• CDW is a priority waste stream in EU for recycling
• Waste Framework Directive (2008/98/EC), calls for 70% recycling by 2020
• EU CDW Protocol (published on 09/11/2016) aims to increase confidence in CDW management process and the trust in the quality of secondary materials recycled from CDW, by: Improved waste identification, source separation and collection
Improved waste logistics
Improved waste processing
Quality management
Appropriate policy and framework conditions.
HISER Project
• funded by EC H2020
• aims to develop and demonstrate novel cost-effective technological & non-technological holistic solutions
• for a higher recovery of raw materials from ever more complex C&DW.
Case Study
The Steiger 113 building in Almere, the Netherlands (photo from Strukton, 2016)
The ADR plant in Hoorn, the Netherlands (photo from Strukton, 2016)
EOL Building (Steiger 113) BP vs BAU Demolition
ADR Concrete Recycling
Research Questions of LCA-LCC
• What are the key factors influencing the environmental and financial performance of the demolition waste management?
• Can high-value recovery of concrete aggregates indeed lead to environmental and financial benefits?
Material Retrieved from Steiger 113
Fraction Material flow Quantity (t)
Light ceiling 1.24
insulation 3.42
carpet 4.40
gypsum 6.68
wood 9.23
roofing felt 25.12
Metallic aluminum frames 2.42
metal plates 36.24
metal beams 47.52
other ferrous metals 60.04
Stony concrete rubble 671.20
mixed rubble 1,426.20
Other unsorted CDW 28.84
Total Building 2,322.55
Total retrieved: 2,322.55 t
Demolition Products
BAU (Business-as-usual) Scenario
Recycling
Landfill / Incineration
Old building (Steiger 113)
BAU ConstructionMetals for recycling (Aluminum window frames,
metal beams, metal plates & other ferrous metals)
Recycled products (wood, bituminous aggregates &
aggregates for foundation)
Natural gravel production
Gypsum, B wood,Roofing felt,Unsorted CDW
B wood,Insulation,Carpet flooring, Ceiling
New building (Upcycle Centre)
Mixed rubblefor foundation Gravel for
concrete floor
On-site Crushing
BAU Dismantling & Demolition
C1
A1 - 3
C3 - 4
New metal beams& ceiling production
Metalbeams& ceilings
for new building
C2 Transport A4 Transport
System boundary, BAU scenario
Recycling
Landfill / Incineration
Old building (Steiger 113)
BP Construction
wood doors, wood stair, ceiling & gypsum wall to
Kringloopwinkel
Metals for recycling (Aluminum window frames,
metal beams, metal plates & other ferrous metals)
Recycled products (wood, bituminous aggregates &
aggregates for foundation)
ADR concrete aggregate
manufacturing
Mixed rubble production
0/4 mm recycled sand & 4/22 mm recycled aggregate
B wood,Roofing felt,
Unsorted CDW
B wood,Insulation,
Carpet flooring
Co
ncr
ete
rub
ble
4/22 mm recycled aggregate (for concrete floor)
New building (Upcycle Centre)
Metal beams, ceiling, local reuse
Mixed rubblefor foundation
Mix
ed r
ub
ble
fo
r fo
un
dat
ion
On-site Crushing
BP Dismantling & Demolition
C1
C2
New metal beam production
New
met
al b
eam
C3 - 4Off-site
Crushing
Transport
A1 - 3
TransportA4
System boundary, BP scenario
BP (Best-practice) Scenario
Rubber-tire loader
Excavator Crusher
Water use for dust
control
Crushing and ADR equipment
Sieve
-€ 30,000
-€ 20,000
-€ 10,000
€ 0
€ 10,000
€ 20,000
€ 30,000
€ 40,000
€ 50,000
C1:Demolition C2:Transport toEOL treatment
C3-4:Wasteprocessing and
disposal
A1-3:Productstage
A4:Transpot tobuilding site
LCC Comparison BP-SD (€ 47k) vs BAU-SD (€ 61k)
Proceeds
Raw material
Waste processing fee
Personnel
Utilities
Equipment
Transport
BP BAU
BP BP
BP
BP
BAU
BAU
BAU
BAU
Environmental profiles Product Environmental Footprint impact categories (1-7 of 14)
Environmental profiles Product Environmental Footprint impact categories (8-14 of 14)
Conclusions & Outlook
• Reuse of metal component has the biggest potential to save both environmental burdens and financial costs, although it represents only 6% mass of the demolition materials.
• Stony fraction makes largest (93%) share of CDW, reducing stony transport is the key to save emissions and costs. Strategically locating ADR recycling facilities makes high value recovery of aggregate competitive.
• Next steps – Innovating business models – Using BIM tools – Connecting demolition, construction, aggregate manufacturing – ADR advances: fine fraction recovery for precast concrete
• (VEEP-project.eu )
