IIG – Introduction to LEEMA

The LEEMA project:
Novel Inorganic Insulating Materials for
Energy Efficient Buildings, based on Mineral
Wastes
Dr. Anna Gaki– NTUA
SUSTAINABLE CONSTRUCTION MATERIALS
Copenhagen, 17th September 2014
This project has received funding from the European Union’s Seventh Framework Programme
for research, technological development and demonstration under grant agreement no 285059
The LEEMA Project
Low embodied energy advanced (novel) insulation materials and
insulating masonry components for energy efficient buildings
Universities –
Research
Institutes
SME
Large Industries
Partner
Country
S&B INDUSTRIAL MINERALS
GR
Etex Group (Redco)
BE
SCHLAGMANN BAUSTOFFWERKE
DE
THERMAL CHERAMICS de FRANCE
FR
Morando S.r.I.
IT
FIBRAN
GR
FENIX TNT S.r.o.
CZ
AMS Solutions
GR
NATIONAL TECHNICAL UNIVERSITY OF ATHENS
GR
MPA University of Stuttgart
Centre Scientifique et Technique de la Construction
(BBRI)
MFPA University of Weimar
DE
D'APPOLONIA SPA
IT
Architects Council of Europe (ACE)
BE
BE
DE
2
Project objectives
 Development of a new generation of inorganic insulation materials and
building insulation masonry components (“3I”) with lower embodied energy
(>50%) and lower cost (15%) and upgraded properties compared to the
commercial ones
 Improvement of durability and energy performance at building level
 Safer and cleaner indoor building environment due to incombustibility and
absence of organic/fibrous compounds
 Use of wastes of industrial minerals exploitation, recycled rejects from the
glass industry and industrial by-products

Development of inorganic polymeric materials free from the drawbacks of the
current inorganic polymers (“geopolymers”)

Insulating Inorganic Incombustible (3I)
Materials and Masonry Components
3
LEEMA Products
3I Loose Filling
Materials
3I LFM for Cavity Walls
insulation
(Expanded Perlite,
EPBs, stone-glass wool)
3I EPB
(Fesco boards)
3I Binders
3I Fibre boards
(Fiber cement boards)
3I Bricks
(Perlite Filled
insulating bricks)
3I Foam
Boards
(Aerated
Concrete)
4
3I Loose Filling Materials (3I LFM)
Material
Type
Application
LEEMA
3I LFM
For Cavity walls
insulation
For Fibre boards
For Brick cavities/EPBs
Loose Bulk
λ10
Density (LBD)
(mW/mK)
(Kg/m3)
49.7
36
76.7
38.9
39
34
Expanded
50-120
45-70
perlite
Granular insulation
EPS beads
15-35
32-40
Main advantages:
 Totally inorganic, non-combustible, based on mineral tailings, recycled glass and
industrial by-products
 Excellent thermal performance and easy installation using the standard procedures
applied for loose filling insulation materials
 Properties and grain size can be fine-tuned according to application (λ: 33-45 mW/mK,
LBD: 15->120 Kg/m3), to replace traditional lightweight aggregates
 Low energy consuming expansion using IR heating at moderate temperatures 500-600oC
 Similar behaviour to expanded perlite regarding the corrosion of hot-dip
galvanized and steel anchor rods
5
3I Binders
Material Type
LEEMA
3I Binders
Compressive
Strength (MPa)
21
Flexural
λ
Strength (MPa) (mW/mK)
6
19
8
26
Density
(Kg/m3)
1480
1600
Cement
72
1860
Clay Bricks
80-130
1890-2000
Main advantages:
 Based on mineral tailings (wastes)
 Mechanical properties obtained after curing at low
temperatures (~70 oC) after a few days
 Compatible with traditional aggregates and
conventional shaping methods (moulding or
extrusion)
 Suitable for the production of pre-fabricated nonstructural construction elements
 Embodied energy (for a typical perlite-based
geopolymer) ~ 1.37 MJ/kg (cement 5.2 MJ/kg, fired
ceramic bricks 3 MJ/Kg)
6
3I Bricks
The “simple approach”: 3I Loose Fill Materials
replacing expanded perlite
 λ value of infill 35 mW/mK (↓22%)
 Same production process
 Overall brick λ value ≤ 90 mW/mK
The “futuristic” approach:
3I binders replacing the ceramic brick body
 Mechanical properties, ↓ density and λ
without porosity modifiers
 Similar production process, without
firing (>80% lower embodied energy)
 Extrudable under soft-clay conditions - A
dedicated extruded has been designed
and realized (Morando)
7
3I Fibre Boards, 3I EPBs
3I Fibre boards
3I Loose Fill Materials replacing expanded perlite or
exfoliated vermiculite
 Successful Pilot scale production – No significant
changes in production process
 λ 0.11-0.14 W/mK,
 Similar flexural strength
 3I binders could be used to replace cement,
using moulding or extrusion as shaping methods
3I EPB
3I Loose Fill Materials replacing expanded
perlite
 λ< 0.05 W/mK
 Density ~150 Kg/m3
 Flexural Strength ~0.35 MPa
8
3I Foam Boards
Material Type
λ
(mW/mK)
Density
(Kg/m3)
Compressiv
e Strength
(MPa)
LEEMA
3I Foamed Boards
62-119
344-680
0.7-2.7
Aerated Concrete
600-1400
200-1600
1-10
70-210
300-800
1.3-8.5
24-39
29-55
0.07-0.15
Autoclaved
Aerated Concrete
Organic Insulating
Products
Main advantages
 Based on perlite wastes
 Foamed using inorganic or organic
foaming agents
 Mechanical properties obtained after
curing at low temperatures (~70 oC) for a
few days
 Easy to cut – retain shape and strength
9
Further information
Visit the project’s Website for more information: www.leema.eu
Follow us on:
LEEMA Project FP7
@LEEMA FP7
LEEMA Project FP7
LEEMA Project FP7
LEEMA Project FP7
This project has received funding from the European Union’s Seventh Framework Programme
for research, technological development and demonstration under grant agreement no 28505910

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