Outdoor gas fire pits are exposed to extreme conditions: open flames, rapid temperature fluctuations, moisture, rain, snow and long-term UV radiation. Although many materials look similar from the outside, their internal structure and durability can differ considerably.

This article compares two commonly used materials for fire pits: GFRC (Glass Fiber Reinforced Concrete) and MgO (Magnesium Oxide Board).

Based on professional test data and real customer feedback, the differences become clear. The following comparison is intended to help customers, planners and dealers understand which material performs better in real outdoor use.

Material & Technology

GFRC

GFRC is a composite material made of cement, sand, glass fibers and polymer additives.

If GFRC is produced using the spray-up process, the following properties are created:

• A one-piece, monolithic component
• High density, high strength, good impact strength
• Resistant to high temperatures and thermal cycles
• Suitable for long-term outdoor use

Due to this durability, GFRC is widely used in architecture, landscaping and high-quality gas fire pits.

MgO

MgO sheets are mixed from magnesium oxide powder, magnesium chloride, fibers and fillers and pressed into flat sheets. MgO is inexpensive and lightweight, but was originally developed as a construction panel – not as a load-bearing component and not for high continuous temperatures.

fire pits made of MgO are usually based on a box structure made of panels, which creates several weak points:

• Connection joints between the panels
• Surface coatings instead of continuous material
• Lower impact resistance
• Lower thermal stability

GFRC	MgO
Relatively stable material. The cast body must harden and fully react for 28 days, after which the strength is 100% achieved and no further reactions take place. The body remains stable during long-term outdoor use in all weather conditions.	MgO is an unstable material. The cast body only requires post-treatment for about 7 days; however, MgO reacts permanently with water, which is why the surface must be protected with paint. After a few months of outdoor use, the paint layer is slowly destroyed, water penetrates and reacts with the MgO, the glass fiber is damaged during this reaction. The coating flakes off and the body can break.

Real customer feedback on MgO fire pits

Although MgO panels offer certain advantages in terms of lower costs, lower weight and ease of processing, customer feedback consistently shows that the material falls well short of expectations when used outdoors for fire pits. Many users report that the surface coating begins to flake or flake off after a short time outdoors – especially after repeated heating and cooling cycles – and visible damage occurs to the outer surface (see Fig. 1).

As MgO has a natural tendency to absorb moisture, customers in humid or rainy regions often observe swelling, deformation or opening of the joints between the tiles over time. These problems are exacerbated in colder climates: The absorbed moisture freezes in winter, expands and can cause cracks, internal damage or even partial structural failure. In several cases, it has been reported that the glass fiber layer used inside the MgO panels, which is intended to provide minimal reinforcement, fails under these conditions, causing the body to become brittle and significantly weakened (see Fig. 2).

Fig. 1: Detached surface coating.

Fig. 2: Failure of the glass fiber layer – the MgO body is weakened.

Some users also report that the edges of MgO fire pits are easily damaged when they are moved or even slightly knocked, which underlines the low impact resistance of the material. Overall, even though MgO can generally function as an interior construction panel, its poor performance under the influence of weather, moisture and direct exposure to flames means that many customers classify MgO fire pits as unsuitable for long-term outdoor use.

In a direct comparison, GFRC thus shows a clearly superior material performance compared to MgO under long-term outdoor conditions.

Frequently asked questions about GFRC and MgO fire pits

The post GFRC vs. MgO fire pits – Which material is really better for outdoor use? appeared first on Elementi®.

Why GF Beton?

GF concrete consists of alkali-resistant glass fiber fabric, cement and mineral fillers. In contrast to wooden or metal furniture, it does not require any rare woods and causes significantly lower CO₂ emissions during production. The sustainable properties start with the composition of the materials:

• Use of fly ash and silica fume to replace over 20 % of the cement content
• Use of recycled stone (e.g. granulated blast furnace slag) as an aggregate
• Free from formaldehyde and VOCs – GREENGUARD Gold certified
• Recycling rate over 96% – significantly higher than for wooden or plastic furniture

GF-Beton thus combines the advantages of Beton with a new environmental standard. It is not only stable and dimensionally stable, but also part of a modern, sustainable material philosophy.

Energy-saving and low-CO₂ production

At Elementi, we understand sustainability as a holistic process – from the initial design to the finished product. Our production methods for furniture made of GF Beton are specifically geared towards energy saving, waste reduction and water reuse:

• Spraying process: Reduces material waste by over 20 % compared to conventional casting
• Curing at room temperature: no steam, no heating – around 85 % less energy consumption
• Water circulation system: over 85% of the process water is reused after a three-stage filtering process
• Water-based nanocoating: VOC emissions < 50 g/L, around 90 % lower than with conventional paints

These measures reduce CO₂ emissions per piece of furniture by 40-60% compared to traditional materials. Every product – whether fireplace or Beton coffee table – contributes to improving the ecological balance in the long term.

Longevity as a form of sustainability

Sustainability is not only evident in production, but also in use. A longer service life significantly reduces waste and resource consumption. GF Beton is weatherproof, dimensionally stable and virtually indestructible – properties that many traditional furniture lacks.

Comfortable, safe and easy to clean

In addition to the ecological advantages, GF Beton is also convincing in everyday life. Its properties make it ideal for terraces, gardens and interiors alike:

• No harmful substances, no odors, no solvents or adhesives
• Frost and UV-resistant – perfect for patio furniture and outdoor fireplaces
• Water-resistant and temperature-stable – no cracks, no fading
• Easy to clean thanks to water-based, protective surface coating

Thanks to its low thermal conductivity, the surface remains pleasantly cool in summer and not unpleasantly cold in winter. This creates a natural, long-lasting feel-good quality – both indoors and outdoors. GF Beton thus stands for comfort, safety and design awareness all in one.

Resource-conserving material cycle

An essential part of the sustainability concept is the closed material cycle: Every piece of GF Beton furniture can be fully returned to the production process after years of use.

• Intact elements are cleaned, processed and reused
• Damaged parts are shredded and reused as aggregate
• Residual materials can be processed into expanded clay – a lightweight, heat-insulating building material

This circular approach enables almost waste-free production and lays the foundation for a sustainable future of modern design.

Conclusion

GF-Beton stands for the next generation of modern furniture – a symbiosis of aesthetics, durability and environmental awareness. The use of innovative material technologies, energy-efficient production processes and an exceptionally long service life results in products that not only look good, but also make an active contribution to sustainability.

Elementi is committed to ensuring that aesthetic design and ecological responsibility go hand in hand – for furniture that will last for generations, reduce the impact on the environment and promote awareness of sustainable living.

Find out more about our collection of sustainable fireplaces and GF concrete furniture – and discover how modern design and sustainability come together.

If you would like to learn more about the technology behind GF concrete (GFRC – glass fiber reinforced concrete), its production, material benefits and application in modern furniture design, visit our article “What is GFRC concrete?” – a detailed introduction to the future of sustainable materials.

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In modern outdoor and interior design, concrete has long been more than just a “building material”. It is also an attitude: calm, stable, natural, durable. On the terrace, in the garden, in the dining area or around the fireplace, concrete lends rooms a sculptural presence.

This article explains in easy-to-understand terms why Beton and GFRC (glass fiber reinforced concrete) are ideal for furniture and fireplaces are ideal: What you should look out for when buying, what surfaces are available, how installation, use, spacing and maintenance work – and what looks are currently in demand in Europe.

The essence of concrete

Concrete is a multiphase composite material: cement “bonds” sand and gravel to form a dense, very stable material.

• Binder: Cement reacts with water and forms C-S-H gel – the actual “strength” of the concrete.
• Aggregate (sand/gravel, 70-80 % volume): characterizes stability, durability and feel.
• Water: enables mixing, molding and reaction.
• Additives/cement substitutes: make concrete denser, more durable and more sustainable.

For those who like it technical: 2C₃S + 6H → C₃S₂H₃ (C-S-H) + 3CH. C-S-H ensures strength and density; too much CH can reduce durability.

Typical characteristic values – what they bring you

Buying tip: The denser and less porous the Beton, the more elegant the appearance, the better the stain resistance and service life.

GFRC: lighter, more beautiful, more durable

GFRC (glass fiber reinforced concrete) is concrete that is reinforced with alkali-resistant glass fibers and polymers. The result: thin walls, low weight, high crack resistance – ideal for furniture and cladding for fireplaces.

Why this is ideal for your home

• Less weight: thin-walled construction – easier to move and assemble.
• Low cracking: fibers act like “invisible reinforcement” and hold microcracks together.
• Fine details: clear edges, soft radii, high-quality feel.
• Weatherproof: insensitive to sun, rain, heat/cold.

You can find out more about the properties and care of GFRC here: GFRC Beton – Properties & care.

Standard values

In short: GFRC ≈ 1/3 lighter, higher crack/flexural strength, more design freedom.

Look & feel: the surface makes the look

Popular surfaces

• Fair-faced concrete: smooth, low-porosity, very modern.
• Travertine/limestone look: natural pores and stone character.
• Finely bush-hammered/lightly sandblasted: matt, low reflections, velvety feel.
• Polished: easy-care for table tops; pay attention to scratch resistance.
• Colors: inorganic iron oxide pigments are recommended for UV stability. Classics: light/medium gray, sandstone, ivory.
• Sealing: Silane/Nano-SiO₂/Polyurethane – determines stain protection, water repellency, UV resistance.

Buying tips:

• Few pores, “calm” surfaces: exposed concrete or finely blasted.
• Stone look: travertine/limestone look + matt sealant.
• High scratch/stain resistance: hard top coats + easy routine maintenance.

Durability & safety: outdoors and near the flame

Note: For patios, gardens, the coast and near the flame – properly executed – concrete remains reliable and stable.

How concrete comes to your home: Furniture & fireplaces

Furniture(coffee table, side table, dining table, bench, planters/modules)

Advantages of concrete furniture

• Freedom of form: monolithic, sculptural, clean proportions.
• Stable feeling: everything stands still and secure.
• Easy-care: no pests, no moisture problems; additionally stain-resistant with sealant.
• Elegant mix of materials: concrete × wood (warm), metal (precise), ceramic/stone (fine) – suits modern and natural.

Sizes/structure (practical guidelines)

• Recommended wall thickness 15-20 mm (GFRC); table tops with 20-25 mm look particularly valuable.
• Reinforce locally at overhangs and cut-outs (internal ribs/doubling).
• Support large panels over the entire surface/linearly, not just selectively.
• Contact with the floor with glides/feet – protects edges and reduces capillary moisture.

Cleaning & care

• Everyday use: Neutral detergent + soft cloth.
• Stubborn: according to the specifications of the selected sealing system.
• Winter: Covering is recommended for a longer “as new” look.

Fireplaces(gas/ethanol: central, linear, built-in)

Concrete × Flame = Look + Rest

• Thermally stable: pleasant surface temperatures, solid envelope.
• Strong staging: round/angular/linear – the flame line always looks high-quality.
• Safety accessories: glass wind protection, lava stones or ceramic wood improve protection and atmosphere.

Construction & materials

• Inside near the flame: heat-resistant lining/binder-resistant liner.
• Outer shell: GFRC thin-walled + stiffened – light and rigid.
• Metal parts: 304/316 stainless steel (316 preferred on the coast).
• Sealing/drainage: no water accumulation, UV/heat-resistant sealants.

Installation & safety distances

• To combustible side surfaces: ≥ 60-90 cm (depending on power/wind protection).
• Free upwards or ensure sufficient dissipation of heat/smoke.
• To wooden railings/walls: ≥ 1.0-2.5 m (depending on model and standard).
• Substrate: non-combustible, level, load-bearing (natural stone/concrete slab).
• Gas: pipes properly; ethanol: fill and ventilate according to instructions.

You can find more tips on the selection and correct spacing of fireplaces in this article:Fireplace size guide.

Operation & maintenance

• Clean burner nozzles regularly.
• Keep the glass windscreen clean and undamaged.
• Check the seal every 6-12 months and maintain if necessary.
• Winter break: cover and close the gas supply.

Checklists & parameters

Material & pattern

• Target look: exposed concrete/travertine/matt/polished?
• Color: light/medium grey, sandstone, ivory? UV stability desired?
• Haptics/porosity: how much “mineral porosity” is desired?
• Sealing: stain protection/UV/water repellency & repairability.
• Sample: 300 × 300 mm in original thickness; check edge processing.

Construction & assembly

• Wall thickness: 15-20 mm (furniture/cladding), table tops 20-25 mm.
• Reinforcement: concealed ribs/reinforcements at load tips.
• Support: continuous + glides/feet as separation.
• Installation parts: Stainless steel A2/A4 to prevent rust discoloration.
• Substrate/drainage: Slope to the outside, no standing water.

Environment & Climate

• Frost region: Combination of density + air voids + sealing.
• Coast/salt spray: 316 stainless steel and meticulous sealing.
• High UV load: Sealing with increased UV resistance.

Maintenance

• Everyday use: Neutral detergent + soft cloth.
• Stains: treat according to the sealing system.
• Inspection: every 6-12 months, reseal if necessary.
• Winter: cover; avoid de-icing salt and hard friction.

Trends

• Mineral textures + neutral tones: light/medium gray, sandstone, ivory – timeless.
• Minimal & raw-noble: clear geometries + matt or travertine-like surface.
• Consistent material language: façade, flooring, furniture, fireplace – one system, one look.
• Lightweight & large format: GFRC enables large panels and long flame lines.
• Easy to maintain: preferably “repairable” sealants.
• Material mix: Beton × wood × metal × ceramic – warm/cool balance, high quality.

FAQ

Concrete does not stand for cold, but for stability, authenticity and durability. With GFRC, it becomes lighter, finer and even more robust – as furniture and as a fireplace shell. This is how your home finds the balance between sculpture and safety.

Used correctly, concrete is not just “a heavy object”, but an order and warmth that lasts for many years.
Concrete not only supports buildings – concrete also carries the temperament of your life.

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In addition to the type of fuel (gas or wood), the material determines the appearance, weight, heat output, maintenance and suitability for different locations. In the premium segment, Beton (water- and weather-resistant mixtures, partly as reinforced variants) and stainless steel are the most common materials.

Application scenarios at a glance

Durability & service life

• Beton: With dense mix/reinforcement usually 8-15 years+. No rust, no corrosion. In severe weather conditions (freeze/thaw cycles), fine surface hairline cracks can occur – visually, not structurally critical. Weather protection cover in winter significantly extends the service life.
• Stainless steel: High-quality grades (e.g. V2A/V4A) achieve 10 years+. V4A is recommended for salt/coastal locations. No cracking, hardly any structural ageing; slight color change/darkening due to weathering is normal and polishable.

Color, appearance & possible changes

• Beton: Common shades are light gray, cement gray, anthracite, sand, stone looks (e.g. travertine). No “varnish”, therefore no classic flaking. UV/rain exposure can create a slight patina over the years, often desired. Sealants keep the color effect stable for several years.
• Stainless steel: Natural metal (brushed) or powder-coated surfaces (e.g. matt black). Metal jaws discolor minimally when exposed to heat (“temper colors”) – technically uncritical. Coated versions should be heat- and weather-resistant (powder-coated) to minimize chalking/fading.

Temperature change, winter & climate suitability

• Beton: High temperature tolerance; for large freeze/thaw margins (Alpine region, low mountain ranges) a reinforced formulation/inner frame is recommended. Cover in winter and avoid standing water, to reduce the effect of frost on the surface. Heats up slowly, but releases heat into the environment for a long time.
• Stainless steel: Excellent thermal shock resistance, no frost problems. However, metal gets very hot and cools down faster than Beton. In extreme cold, do not shock to maximum flame (to protect the material).

Hardness, strength & mechanical aspects

• Beton: Very pressure-resistant, heavy and stable. Edges can be damaged by hard impact; substrate should be level and load-bearing.
• Stainless steel: Tough and impact-resistant, but lighter. In the case of thin-walled constructions, be aware of vibrations; weld seams depend on quality and design.

Care & maintenance

Summary & Recommendation

• Beton is the right choice when the focus is on a natural, warm appearance, a stable presence and a fixed installation. Ideal for year-round garden design and design integration.
• Stainless steel impresses when it comes to mobility, a modern look and low maintenance – perfect for flexible patios, events or commercial use.
• Cold regions/winter: Use a cover. For Beton, choose robust mixtures/reinforcements; for stainless steel, use high-quality alloys (e.g. V4A near the coast).
• Best of both worlds: the combination of concrete housing and stainless steel firing system often proves its worth – appearance, safety and performance in one.

The post Material comparison: Beton fire pit vs. stainless steel fire pit appeared first on Elementi®.

Basics and material structure

GFRC consists of a fine-grained mortar matrix (cement, quartz sand, water, additives and auxiliary materials) without coarse aggregates. Short-cut, alkali-resistant glass fibers are homogeneously mixed into this matrix or added during application. The fibers act as isotropic micro-reinforcement and bridge micro-cracks, significantly increasing ductility and durability compared to conventional Beton. Typical fiber lengths are 12-38 mm, the volume fraction is around 3-5 %. Polymer modifiers improve bond adhesion, reduce capillary water absorption and increase fatigue resistance.

In contrast to traditional Beton (with dominant compressive strength, brittle fracture behavior and higher self-weight), GFRC aims for a more balanced property profile: lower density, higher flexural strength, better impact strength, controlled cracking and excellent reproducibility of thin-walled geometries.

Manufacturing process and process control

Two process lines have proven themselves in the industry: the spray-up process (simultaneous spraying of matrix and cut rovings) and the premix process (pre-dispersed fibers in the matrix, then cast or laminated). Spray-up is the preferred method for high-quality visible surfaces and complex geometries, as the fiber orientation and dosage can be controlled very precisely along the shape contour.

• Fiber distribution: uniform dispersion prevents fiber bundles (balling) and local weakening.
• Water-binder management: low effective W/B values (supported by superplasticizer) result in dense microstructures.
• Hardening: controlled post-treatment (humidity/climate) minimizes early shrinkage cracks, stabilizes hydration and dimensional stability.
• Temperature resistance: heat-stable additives and layer structures are selected for fireplaces that can withstand thermal gradients without damage.

Mechanical and physical characteristics

The characteristic values depend on the process and fiber. For spray-applied GFRC (guide values, depending on standard/test specimen geometry):

• Density: 1.8-2.0 g/cm³ (up to approx. 25-35 % lighter than normal concrete of comparable wall thicknesses)
• Compressive strength: 50-80 MPa
• Bending tensile strength: 15-30 MPa, with pronounced post-cracking strength
• Tensile strength: 6-10 MPa
• Modulus of elasticity: 15-25 GPa
• Water absorption (according to relevant EN/ASTM methods): typ. < 7 %

The material-specific advantage pattern is particularly evident in the fracture mechanics: While conventional Beton tends to break brittle, GFRC develops a pseudo-ductile behavior under flexural tension. The glass fibers keep microcracks closed and distribute stresses, which increases energy dissipation and extends the service life.

Testing and evaluation standards

Standardized test procedures are used for quality assurance. References to EN 1170 (test methods for glass fiber-reinforced cement composite products), EN 14617 sub-series (for composite materials in the surface area) and ASTM methods (e.g. C1185, C948, depending on the component) are common. In addition, material-specific laboratory protocols (fiber length/quantity determination, composite tensile tests, porosimetry, thermal cycles) are used. Process capability indicators (e.g. Cp/Cpk) are used for critical dimensions, wall thicknesses and surface porosity in series production.

Fields of application

• Claddings and housings for modern fireplaces, including sophisticated radii and thin-walled rib structures
• Design and garden furniture with architectural clarity and high surface quality
• Curtain wall elements, panels, cornices, balustrades
• Landscaping, planters, sculptures and urban furnishings

Advantages in fireplace applications

For fireplace housings, GFRC combines thermomechanical stability with dimensional stability. Suitable layer structures, heat-resistant inner linings and defined safety distances reduce thermal stresses and local peaks. This results in

• Good thermal shock resistance (frost/heat) with low tendency to crack,
• Controlled heat conduction and dissipation for housing surfaces,
• Lower weight with the same component rigidity, which simplifies transportation and assembly,
• precise surfaces with reproducible textures (e.g. natural stone-like looks).

Fuel categories are often addressed separately for appliance selection and operation. Product categories such as gas and ethanol differ in terms of performance, distances, ventilation requirements and handling; the GFRC casing forms the dimensionally stable, weather-resistant outer structure.

Advantages in furniture applications

For furniture (e.g. coffee tables, side tables, dining tables), GFRC supplies a high-quality, permanently dimensionally stable surface with reduced wall thicknesses. This allows for fine edges, defined radii and lightweight, yet solid components. Relevant product areas include concrete furniture for indoor and outdoor areas with coordinated sealing systems.

• Weight advantage for handling, logistics and installation,
• High edge stability and impact resistance with the right fiber and matrix design,
• Variety of surface finishes (matt, polished, pigmented, controlled porosity),
• Good weather and UV resistance with proper care.

Surface care, cleaning and protection

GFRC is low-maintenance, but benefits from regular care to maintain its function and aesthetics in the long term. We recommend pH-neutral cleaning agents, soft cloths/sponges and regular drying of the surfaces. Aggressive, oily, abrasive agents should be avoided. For outdoor components, water-based sealants with renewable intervals (6-12 months depending on exposure) have proven effective. Covers reduce the entry of dirt and weathering during rest periods.

Durability and typical stresses

GFRC components are designed to withstand cyclical moisture, UV exposure, freeze/thaw cycles and moderate chemical influences. Critical stresses can be addressed by design measures: sufficient drainage, avoidance of standing moisture, coordinated sealing, controlled bonding/joining techniques and defined support points. Typical signs of wear (fine pores, slight color nuances) are inherent to the material and result from the typical manufacturing process.

Quality assurance, tolerances and complaint prevention

Production control plans with random sample tests for wall thickness, density, water absorption and bending tensile values are used for series products. Surface tolerances, permissible porosity and color variations are defined for each product group and communicated via release samples. Proper packaging (impact-resistant edges, climate-controlled storage areas) reduces transport damage. Installation instructions and maintenance cards reduce the risk of incorrect use and increase customer satisfaction in the field.

Sustainability and life cycle

The ecological balance sheet benefits from the long component service life, the reduced use of materials thanks to thin-walled structures and the possibility of reprocessing. Compared to heavy solid parts, transportation costs and assembly energy are reduced. The overall effect can be further optimized through material-efficient design, modular repairability (local repair of edges/surfaces) and recyclable packaging.

Comparative classification

In the spectrum of modern cementitious composites, GFRC is positioned between lightweight, design-oriented thin-wall construction and functionally strong high-performance concretes. Compared to fiberless systems, GFRC offers superior crack control and flexural tensile performance; compared to steel fiber-reinforced concretes, GFRC scores points in thin-walled exposed applications with its fine surface, lower weight and corrosion-free reinforcement. For solid primary structures, other systems (e.g. UHPC, reinforced concrete) have the advantage, while GFRC provides the best possible ratio of dimensional stability, durability and weight for shells, panels and furniture.

Outlook

Development is focusing on further reductions in matrix porosity, optimized hybrid fibre concepts (e.g. combinations of glass and polymer fibres), improved heat-resistant layer structures for zones subject to high thermal stress and environmentally friendly binder systems with a lower CO₂ load. At the same time, digital process chains (simulation of shrinkage/thermal effects, inline-capable sensor technology) and reproducible surface processes are becoming increasingly important. In practice, this means even lighter, more robust and more precisely manufacturable components – from fireplace cladding to high-quality concrete furniture.

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Beton has been one of mankind’s most important building materials for over a century. From high-rise buildings to bridges and roads, it can be found everywhere. However, with the growing demands for design, sustainability and functionality, the limits of traditional Beton are also becoming apparent. In recent years, numerous innovative variants have been developed – one of the most advanced being GFRC (Glass Fiber Reinforced Concrete). This article explains the properties of traditional Beton, presents modern alternatives and shows the unique advantages of GFRC.

Properties, advantages and disadvantages of traditional Beton

Traditional Beton consists of cement, water, sand and gravel. A chemical reaction hardens it into a stable material with high compressive strength. Its greatest strengths lie in its load-bearing capacity, cost-effectiveness and universal applicability, which is why it continues to play a central role in the construction industry.

Advantages of traditional Beton

• High compressive strength and load-bearing capacity;
• Cheap raw materials and low production costs;
• Proven technologies and many years of experience;
• Ideal for solid structures such as foundations, bridges and walls.

Disadvantages of traditional Beton

• High dead weight – difficult to transport and process;
• Low tensile and flexural strength – tends to crack;
• Limited freedom of form – difficult to realize complex designs;
• Rough surface – low decorative effect;
• High CO₂ emissions in cement production;
• Maintenance costs for long-term use (e.g. moisture, frost damage).

Modern types of concrete and their most important types

In order to overcome the weaknesses of classic concrete, various functional types of concrete have been developed in research and industry. These new materials are characterized by lower weight, greater durability and a better environmental balance. The most important modern types of concrete include

• Lightweight concrete: Use of porous aggregates such as expanded clay or perlite, lower density and better thermal insulation.
• Fiber Reinforced Concrete (FRC): With steel, plastic or glass fibers to improve tensile and flexural strength.
• High performance concrete (HPC): Optimized composition for higher strength and durability, e.g. in building construction or bridge construction.
• Ultra-high performance concrete (UHPC): Extremely dense Beton with exceptional compressive strength and durability.
• Self-healing Beton: Uses microorganisms or chemical binders to automatically repair cracks.
• GFRC (Glass Fiber Reinforced Beton): With alkali-resistant glass fibers that reduce weight and significantly increase tensile strength.

The most important features of GFRC

GFRC is a cement-based composite material that is reinforced with alkali-resistant glass fibers. These fibers are evenly distributed in the matrix and form a three-dimensional network that significantly improves both tensile and flexural strength. GFRC combines high stability with low weight and great freedom of form. It is used in architecture, design and increasingly for modern fireplaces and concrete furniture furniture.

Advantages of GFRC

• Low weight: Up to 75 % lighter than conventional Beton – easy transportation and installation;
• High tensile and flexural strength: glass fibers increase elasticity and prevent cracking;
• Great design freedom: Ideal for thin-walled, curved or filigree shapes;
• Aesthetic surfaces: Smooth, matt, polished or colored – versatile in design;
• Weather resistance: Resistant to UV radiation, frost and chemical influences;
• Sustainability: Longer service life, lower material consumption, recyclable;
• Easy care: Sealed surfaces are dirt-repellent and easy to clean.

Disadvantages of GFRC

• Complex manufacturing process with precise mixing and fiber distribution;
• Higher production costs than with classic Beton;
• Not suitable for solid, load-bearing main constructions.

GFRC compared to other types of concrete

GFRC in modern fireplaces

With modern fireplaces GFRC has completely replaced traditional Beton. Thanks to its light weight and high temperature resistance, the material is perfect for gas and ethanol fireplaces. It combines functionality with elegant aesthetics.

• Heat and frost resistance: GFRC can withstand large temperature fluctuations without cracking.
• Low weight: makes transportation and installation easier, even with large fireplaces.
• Weatherproof: Resistant to rain, UV radiation and snow – ideal for year-round outdoor use.
• Design variety: Enables natural stone looks or minimalist concrete surfaces.
• Durability: No flaking, no deformation – fireplaces retain their appearance for years.

GFRC in design and garden furniture

GFRC is also setting new standards in the furniture sector. Concrete furniture made of glass fiber reinforced concrete is robust, weatherproof and surprisingly light at the same time. They combine architectural clarity with everyday functionality.

• Lightweight and stable: ideal for coffee tables, dining tables, benches and side tables.
• Can be used indoors and outdoors: resistant to moisture and UV radiation thanks to sealing.
• Haptic quality: The smooth, cool surface conveys solidity and elegance.
• Sustainable design: Durable alternative to wood or metal – no maintenance, no corrosion.
• Aesthetics and function: Reduced design that complements and betons modern architecture.

GFRC is the next stage in the development of Beton

Traditional Beton offers impressive strength and economy, but is limited in terms of design freedom and sustainability. GFRC has developed Beton from a purely structural material into a versatile design material. It combines lightness, stability and aesthetics and meets the requirements of modern, sustainable construction. GFRC is the future-oriented choice for high-quality furniture, fireplaces and architectural applications – a material that combines durability and design in perfect balance.

You can find out more about the care, cleaning and other properties of GFRC here: GFRC Beton – Properties & Care.

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