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TEXTILE-REINFORCED LIGHTWEIGHT CONCRETE
Background
Concrete is the world’s most popular
building material. The composite material
offers almost unlimited possibilities in terms
of shape and design while at the same
time providing extreme strength. When
combined with suitable steel reinforcement,
concrete is used in almost all areas of
construction, including civil engineering,
building construction, tunnel building and
road construction.
Lightweight concrete
A special variant is lightweight concrete,
which has a maximum apparent density of
2000 kg/m³. Lower apparent densities of
350 kg/m³ are already technically feasible;
this ultra-lightweight concrete can even float
on water. The low apparent density can be
achieved through the use of lightweight
aggregates or a porous matrix. Although
lightweight concrete is not as strong as
regular concrete, its strength can be increased
by incorporating textile mesh or textile fiber,
thus allowing very light and delicate designs
with high stability. Integrating suitable
additives also affects special properties such
as thermal insulation or soundproofing,
therefore making lightweight concrete an
appealing choice for low-energy houses as
well. The use of lightweight concrete in new
façade systems provides a durable and energy
efficient solution.
1 Manufacturing a lightweight concrete mix
2 Textile-reinforced lightweight concrete
3 Determining the mechanical properties of a
lightweight concrete
1
Our expertise
• Developing lightweight concrete
formulas for:
– Special designs
– Façade panels
– Soundproofing
– Thermal insulation
• Determining:
– Fresh concrete characteristics
– Mechanical characteristics
– Durability
• Statistical calculations
• Solid body analytics
– XRD / XRF
– SEM-EDX / optical microscopy
F R A U N H O F E R I N S T I T U T E F O R B U I L D I N G P H Y S I C S I B P
IBP
lightweight concrete matrix
3D textile
Fraunhofer Institute for
Building Physics
Department of Building Chemistry,
Building Biology and Hygiene
Concrete technology and functional
construction materials group
Fraunhoferstr. 10
83626 Valley
Germany
Contact
Dr. Volker Thome
Phone +49 8024 643-623
Dr. Severin Seifert
Phone +49 8024 643-676
www.ibp.fraunhofer.de
