sustainable binders in different concrete binding systems ...€¦ · close-loop circularity: waste...
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Sustainable binders in different concrete binding systems
in two SIM MaRes projects
SIM User Forum
Antwerp 6th June 2017
Hans MostmansCRH Structural Concrete BelgiumSteffen GrünewaldCRH Sustainable Concrete CentreLieven MachielsKU Leuven
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Outline
- SIM MaRes Program
- ASHCEM project
- SUPERMEX project
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SIM MaRes Program
- MaRes is about recycling of “Materials from solid and liquid industrial process Residues’
- 4 projects: ASHCEM, SUPERMEX, Get-A-Met, SMART
- Social challenges (avoidance of landfilling, price of e.g. rare-earth elements, production concentration in e.g. Asia and Africa)
- Raw materials (like slags, ashes, industrial by-products such as bauxite residue, goethite and aqueous waste streams)
- Aims at creating and demonstrating an operational, flexible toolbox to recovermetals and valorize residual matrix into building materials.
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SIM MaRes Program
- Embedment of MaResin Society, Industryand Research
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Close-loop circularity:Waste residues and circularity
[Source: Ellen MacArthur Foundation]
Avoid landfill, metal and energy recovery
SIM MaRes Program
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ASHCEM project
Municipal waste –a research topic with relevance
Athens, 2011
Country Year Incinerated waste Bottom ash [million tonnes] [million tonnes]
Belgium 2010 3.03 0.51Czech Republic 2010 0.51 0.16Denmark 2009 3.59 0.63
Finland 2009 0.27 0.05France 2008 11.60 2.70
Germany 2010 20.04 5.00
Hungary 2008 0.40 0.09Italy 2010 4.71 1.27Netherlands 2011 7.20 1.60Norway 2010 1.35 0.25
Portugal 2011 1.13 0.21Spain 2011 2.42 0.42
Sweden 2009 4.50 0.74
13 countries 60.75 13.63
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ASHCEM project
Waste or resource? Municipal waste
Awareness Standards
Execution
Techniques
Efficiency & Society needs
Remaining ash: About 30% by weight
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ASHCEM project
Municipal Solid Waste Incineration-ash- a resource for building materials? -
Mineral components are comparable with cement,
the mineral composition is different.
[Data from: Florea & Brouwers]
OxidesIncineration
ashFlyash
Blast furnace slag
CEM I 42.5
CaO 20.0 4.5 39.0 62.0
SiO2 36.5 55.0 35.0 20.0
AL2O3 10.6 22.0 12.5 6.0
Fe2O3 15.4 8.0 9.0 3.5
MgO 2.2 2.0 0.5 1.5
SO3 1.5 1.5 0.1 4.5
Others 13.8 7.0 3.9 2.5
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ASHCEM project
- Incinerator ash (bottom of oven & sieve residues)- Currently: landfilled or low-grade applications (i.e. road foundation)- Limit use for building products- Belgium: certification according VLAREMA and ‘grondstoffenverklaring”
Application i.e. as aggregate according to Dutch CUR Recommendation 116
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ASHCEM project
Research needs:
- Variability of MSWI, robustness - Leaching of elements- Reactivity- Process control - Feasibility novel cements / building products to be proven- Acceptance society
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ASHCEM project
Development of innovative products
Incinerator ash
Binder (hydraulic reaction)
Cement-production
Binder (carbonation)
Blended with cement
Sustainable building products
Binder systems investigated: hydraulic and carbonation binding
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SUPERMEX - Sustainable transformation of new and landfilled solid industrial residues into metals and inorganic polymers using a SuperMetalEXtractor
SUPERMEX project
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SUPERMEX project
Binding system investigated: Inorganic polymer products from non-ferrous slags
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Deep fuming –combining valuable metal recovery with creating a high quality inorganic polymer precursor
SUPERMEX project
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Milled slag Water glassSlag based inorganic
polymer concrete+ =+ Sand, rocks
= Low carbon footprint= Easy in use in existing installations running on traditional cement= No big investments required = Competitive price with traditional cement= Broad range of applications = Building products with improved properties
Production of an inorganic polymer binder from non-ferrous slags
SUPERMEX project
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Preview of someinorganic polymerbased products…
SUPERMEX project
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Sandwich wall production
Industrial paver production trial
Pilot scale testing & industrial scale production
SUPERMEX project
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18
Ultra high performance concrete - production of a staircase
SUPERMEX project
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19
Ultra high performance concrete - production of a staircase
SUPERMEX project
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Contact presenters
Hans Mostmans
CRH Structural Concrete Belgium ([email protected])
Steffen Grünewald
CRH Sustainable Concrete Centre ([email protected])
Lieven Machiels
KU Leuven ([email protected], 0032-494918649)