Composite Rebars

Composite Rebars

General characteristics Advantages and benefits Products Applications Comparative characteristics Catalog

Currently, reinforced concrete technology is used in all areas of infrastructure construction. Reinforced concrete structures are a combination of steel and concrete. It’s hard to imagine modern construction without this material, especially since the combination of steel and concrete allows for the optimal utilization of the best features of both materials.

But are you sure? While concrete in such structures bears significant compressive stresses and the reinforcing steel handles large tensile stresses, the weak point of such constructions is indeed the steel, which corrodes under the influence of harmful pollutants or carbonation of concrete. Steel corrosion is an almost unavoidable process. The resulting corrosion points are the cause of stress, cracks, and spalling of concrete cover fragments, completely exposing the metal reinforcement. Corrosion of steel reinforcement leads to a decrease in the structure’s strength and, consequently, its destruction.

An alternative to traditional steel is fiberglass reinforcement rebars, which serve as an excellent substitute with wide applications in reinforcement technology, as well as in other related construction sectors. There is no longer a need for corrosion protection of steel, nor is there a need to coat steel reinforcement rods with epoxy, which is very costly and incurs investment losses; instead, composite rods can be used for reinforcement. The cost of such reinforcement will be lower.

Reinforcement rebars for concrete made of composites are an alternative to traditional concrete reinforcement with steel rods. This is a new, innovative technology that is more economical because it does not require costly maintenance and repairs over time like reinforced concrete structures.

Advantages and benefits

Benefits of using composite reinforcement rods for concrete made from epoxy resins, glass fibers, and basalt fibers:

Due to the fully automated production system, TROKOTEX composite rods are CHEAPER than steel.

Investor savings after purchasing GFRP (Glass Fibre Reinforced Polymer) reinforcement rods can reach up to 50% of the expenses related to reinforcement work and other construction activities on the building site.

No maintenance

Lighter 9 times than steel

Up to 30% cheaper than steel

3 times more durable

Composite rebars

Non-metallic reinforcement is completely corrosion-resistant and does not cause concrete deterioration.

In construction:

Temporary engineering structures: reinforcement of temporary elements with the possibility of cutting and drilling, which saves time during dismantling work.

Laboratory buildings and other facilities with requirements for protection against magnetic wave interference, buildings equipped with magnetic resonance imaging devices, research and development centers, transformer substations due to electromagnetic neutrality…

In reinforced concrete slab elements

Manhole covers, curbs, concrete pavements, gas station structures, railway crossings, road barriers, sidewalk pavements, thin facade panels, acoustic screens, prefabricated foundations, wall and ceiling elements, parking platforms, and other flat elements.

In reinforced concrete volumetric elements

Silos, settlers, sewage channels, gas filling stations, workshops, engine repair halls, sewage tanks, storage containers, sedimentation tanks, settling reservoirs, waste incinerators, bridge abutments, supports and foundations, railway subgrades, switch subgrades, energy-absorbing barriers, concrete pipes, tee beams, walls, girders and trusses, cantilever beams, portal frames, concrete boxes, concrete containers, reduced cover elements.

Foundations, piles, columns

Cantilever elements, balcony connections, beam junctions, frame nodes, tubing segments, magnetic railway track elements, prefabricated halls, exhibition halls, production halls, prefabricated stairs, window panes, garages, basement wall panels, concrete rings, gantry beams, supporting and load-bearing structures.

Road construction

Road structures, bridge structures, tunnel structures, railway structures, airport structures, rock reinforcement anchors, sound barriers, road ramps, road bridges.

Specialized engineering construction

Expansion joints, deep foundations, diaphragm walls, bored piles, micropiles, special foundations, membranes, tank foundations, retaining walls, tunnel portal supports, underpasses, tunnel intermediate ceilings, geotechnical structures, excavation shoring, watertight walls.

Hydrotechnical engineering

Water pipelines, water gates, breakwaters, flood barriers, dams, riverbank reinforcements, water ramps, marinas, anti-surge barriers, landing sites, concrete caissons, shore stabilizers, port structures, concrete channels.

Gardening

Garden infrastructure, foil tunnels, plant support structures, gazebos, pergolas, garden stakes, electric fence posts, decorative fences, posts for forestry fences.

Comparative characteristics

Comparative characterization of physico-chemical properties
Material	Steel KL-AIII	Glass fiber impregnated with epoxy resin	Basalt fiber impregnated with epoxy resin
Tensile strength (MPa)	500	1250	1450
Modulus of elasticity (MPa)	200000	55000	78000
Susceptibility to deformation	elastic-plastic	linear-elastic	linear-elastic
Coefficient of linear expansion %	26	2,2	2,2
Coefficient of thermal conductivity W/(mK)	46	0,35	0,35
Density kg/m³ – specific gravity N/m³	7880	1890	1900
Corrosion resistance	Corrodes	Completely corrosion resistant	Completely corrosion resistant
Electrical conductivity	Conducts electricity	Dielectric	Dielectric
Thermal conductivity	High	Low	Low
Manufactured diameters	6 – 80	4 – 30	4 – 30
Commercial lengths	STRAIGHT BARS 6 I 12 MB	By order – diameters to 12 mm in circles 50-150 mb	By order – diameters to 12 mm in circles 50-150 mb
Effect on electromagnetic wave interference	Disrupts the flow of waves	Transparent to electromagnetic waves	Transparent to electromagnetic waves
ECOLOGICALITY	Non-organic	Eco-friendly, easy to dispose of	Eco-friendly, easy to dispose of
TRUST	Complies with construction standards	Projected durability – min. 100 years	Projected durability – min. 100 years

Comparison of parameters

Metal bars steel KL – A III
Rod diameter (mm)	6	8	10	12	14	16	18	20	22	25	28	32
Weight of one mb. (g/1mb)	222	395	617	888	1210	1580	2000	2470	2980	3850	4830	6310
The amount of meters produced from 1 ton	4504	2532	1621	1126	828	633	500	405	336	260	207	158
Tensile strength (N)	9905	17605	27475	39585	53900	70350	88900	109900	133000	171850	215600	281400

Substitute: epoxy composite rods
Rod diameter (mm)	4	6	7	8	10	11	12	14	16	18	20	22
Weight of one mb. (g/1mb)	33	58	73	90	135	181	231	286	362	470	598	728
The amount of meters produced from 1 ton	30303	17241	13695	11111	7407	5524	4329	3496	2762	2127	1672	1373
Tensile strength (N)	10230	23120	31290	41320	63720	77138	93120	124880	162888	206980	254770	308355

Dimensional tolerances

Dimensional tolerances of rod lengths for all diameters
Commercial lengths	Value	Tolerance	Tolerance
Circle length 100 mb.	100	+ 0,5%	– 0,5%
Circle length 50 mb.	50	+ 0,5%	– 0,5%
Straight sections of 12 mb.	12	+ 1,0%	– 0,5%
Straight sections of 6 mb.	6	+ 1,0%	– 0,5%
Straight sections of 3 mb.	3	+ 1,0%	– 0,5%
Straight sections of 2 mb.	2	+ 1,0%	– 0,5%
Other according to the order specification	x	+ 0,75%	– 0,75%

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