01 · GFRP rebar
GraphenBar®
Ribbed fiberglass, epoxy and graphene bar that replaces steel rebar.
graphenano · smartmaterials
Graphene, on the job site.
Rebar that never rusts, concrete with less cement and radiant floors that conduct heat. Made in Yecla, Spain.
Scroll to watch the build
SmartMaterials range
Three materials for the same build.
02 · Concrete admixturesSmartADDITIVES
4th-generation graphene admixtures: more strength with up to 30 % less cement.
03 · Radiant floorsFloorGraphene
Thermal-conductivity additive for radiant-floor screed. The alternative to anhydrite.
5 November 2026 · CE marking
GraphenBar®, with CE marking.
With European Technical Assessment ETA 26/0130, certificate of constancy of performance No. 1301-CPR-2719, issued by notified body TSÚS under system 1+, and our Declaration of Performance No. GRB001, GraphenBar is placed on the market with CE marking throughout the European Union and the EEA as reinforcement for structural concrete elements.
- European Technical Assessment
- ETA 26/0130Version 01, issued on 3 November 2026 by TSÚS (Bratislava) in accordance with EAD 260023-00-0301.
- Certificate of constancy of performance
- 1301-CPR-2719Issued on 5 November 2026 by TSÚS, notified body No. 1301, for our plant in Yecla, Spain. System 1+, the most demanding under Regulation (EU) 305/2011: factory inspection, factory production control and continuous surveillance.
- Declaration of Performance
- GRB001Issued on 5 November 2026 by the manufacturer, Graphenano Smart Materials sl (Yecla, Spain). With it, GraphenBar carries CE marking.
- Assessed use
- StructuralBeams, columns, panels, slabs and other structural reinforced-concrete elements, and post-installed rebars. Straight bars, Ø 6, 8, 10, 12, 14, 16, 18 and 20 mm.
01 / 03GFRP rebar · GraphenBar®
The rebar that never rusts.
Ribbed fiberglass and epoxy bar with graphene, pultruded in Yecla. It replaces steel in slabs, ground-bearing floors, walls, precast and marine works: no chloride corrosion, 70 % lighter, neither magnetic nor conductive. Sold online in 25-bar packs and 250 m coils, and as welded mesh.
- 773–935 MPa
- characteristic tensile by Ø · EAD 260023-00-0301
- −70 %
- weight vs steel
- ETA 26/0130
- with CE marking · system 1+
Weigh your reinforcement
GraphenBar® vs B500GraphenBar®237 kg
B500 steel · same Ø888 kg
−73 %
lighter
102.00 kN
Characteristic tensile load
×3.7
Metres per 20 t truck
84,388 m vs 22,523 m
1.35 €/m
Indicative price
1,348 € total
Same-diameter comparison. GraphenBar mass per 2026 catalogue (EAD 260023-00-0301); steel mass, nominal. Replacement of reinforcement must be verified by the project engineer. Price excl. VAT, 25 bars × 4 m pack.
Buy Ø12
02 / 03Concrete admixtures · SmartADDITIVES
More strength with less cement.
4th-generation admixtures with graphene made in-house. Graphene reacts with free lime during hydration, bonds to the cement structure and densifies the matrix: from 40 to 55 MPa at 28 days, or the same strength with up to 30 % less cement. Seven Solid lines for ready-mix, precast, sprayed, semi-dry concrete and severe exposure. International patent and product-specific EPD.
- 300 → 210
- kg/m³ cement at equal strength
- 40 → 55 MPa
- compressive at 28 d · UNE-EN 12390-3
- EPD
- product-specific, not sector-average
Work out the cement you save
SmartADDITIVESWithout admixture300.0 t
With SmartADDITIVES210.0 t
90.0 t
of cement saved
Compressive strength at 28 days
Conventional
40 MPa
SmartADDITIVES
55 MPa
What concrete do you produce?
Solid MECHANIC
FLUID ULTRA · PREMIUM · PLUS · BASIC, SUPERPLASTICIZER, PLASTICIZER
Catalogue reference: from 300 to 210 kg/m³ of cement for the same characteristic strength, and from 40 to 55 MPa at 28 days (UNE-EN 12390-3). The actual saving at each plant is set through preliminary trials with our technical department.
03 / 03Radiant floors · FloorGraphene
The screed that conducts heat.
Thermal-conductivity additive for radiant-floor screed. It takes cement screed from k 0.88 to 1.5 W/m·K with limestone aggregate and 2.0 with siliceous aggregate, above anhydrite (1.55). Heat reaches the floor finish sooner and the heat pump works less: up to 30 % lower annual energy use. Dosed at 1.5 kg/m³ straight into the truck mixer, with no change to fresh-concrete consistency.
- 2.0 W/m·K
- siliceous aggregate · 1.5 limestone
- −30 %
- annual energy · Madrid case, COP 3
- 1.5 kg/m³
- dosed into the truck
Heat, from pipe to floor finish
FloorGraphenek = 2.00W/m·K
Thermal conductivity k (W/m·K)
Lime mortar
0.60
Cement screed
0.88
Anhydrite screed
1.55
FloorGraphene · limestone aggregate
1.50
FloorGraphene · siliceous aggregate
2.00
Q = A · k · ΔT — for the same area and temperature difference, heat flow rises with k without touching the installation or screed thickness.
Real application
On site. Not a render.
Photographs of real sites and tests with our products. Every image is dated.
GraphenBar® · 11/2025
Slab reinforced with GraphenBar mesh, freshly poured
FloorGraphene · 09/2024
FloorGraphene, straight into the truck
GraphenBar® · 2026
250 m GraphenBar coil on site
SmartADDITIVES · I+D
SmartADDITIVES test-specimen campaign
FloorGraphene · 09/2024
Pumping the radiant-floor screed
GraphenBar® · 2026
GraphenBar cages loaded for site
Decorative micro-mortar · SmartCOVER
Seamless, jointless, with graphene.
Seamless 2–3 mm graphene micro-mortar for bathrooms, floors, pools and facades. 44 colours · C1–C3 · antibacterial effect.
View SmartCOVER
In-house manufacturing
Graphene from our own process and a pultrusion line in Yecla (Murcia, Spain).
AENOR
ISO 9001 · 14001 · 45001
Certified management systems (not a product certification).
EPD
The International EPD System
Product-specific environmental declaration for the admixtures, not sector-average.
Patent
International · SmartADDITIVES
Graphene-based admixture technology patented worldwide.
ETA
GraphenBar · CE marking
European Technical Assessment ETA 26/0130 (EAD 260023-00-0301), certificate of constancy of performance No. 1301-CPR-2719 from notified body TSÚS (system 1+) and Declaration of Performance GRB001.
Let's talk about your project
Request pricing and data sheets.
Tell us about your project — slab, screed, radiant floor or structural reinforcement — and we'll send the data sheet, the steel-equivalence table and pricing for the right SmartMaterials product within 24 working hours.