Comparison of rebars

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Comparison of metal and composite rebars

Characteristics

Reinforcement

Metal reinforcement class A-III (A400C) GOST 5781-82

Non-metal composite reinforcement (ASP-fiberglass)

Material

Steel 35GS, 25G2S

ASP – polymer-bound glass fiber 13-16 micron in diameter

Tensile strength, MPa

360

1 200

Modulus of elasticity, MPa

200 000

55 000

Elongation, %

25

2,2

(Stress-strain relationship)

A curve with a yield point under stress

A straight line with linearly-elastic relationship under stress up to destruction

Density , t/m3

7,8

1,9

Corrosion resistance to aggressive media

Subject to corrosion, rust appears

Non-corrosive material, class I(chemical resistance to alkaline environment of the concrete)

Heat conduction

A heat-conductor

Not a heat-conductor

Electroconductivity

Conducts electricity

Non-conducting material, a dielectric

Produced profiles

6 - 80

3.5-12, up to 20 in the future

Length

The rods of length 6-12 m

Any length on customer’s request

Ecological compatibility

Environmentally friendly

There is a Sanitary-Epidemiological Conclusion Certificate, does not evolve hazardous and toxic gases

Operating life

In accordance with building standards

Not less than 80 years

FRP equivalents for

replacing steel rebar

6 АIII 
8 АIII 
12 АIII 
14 АIII 
16 АIII

4 АКС 
6 АКС 
8 АКС 
10 АКС 
12 АКС

Parameters of full-strength reinforcement cage under stress 25t/m2

Using reinforcement 8AIII, cell size 14*14cm. Weight 5.5kg/m2

Using reinforcement 8 AKC, cell size 23*23 cm. weight 0.61 kg/m2. Weight is 9 times less

Economics

For 6 months the cost of metal has been increased by 67%

Replacing metal reinforcement by full-strength composite one saves 10-30%. Price growth dynamics is 2-4% per year.

Application

In accordance with building standards

In accordance with recommendations

Characteristics

Metal reinforcement, class III (A400C) GOST 5781-82

Nonmetal composite reinforcement (AKC – fiberglass)

Full-strength replacement of steel rebar by composite reinforcement.

Steel rebar

Composite reinforcement

Diameter, mm

Meters in 1 t.

Diameter, mm

Meters in 1 t.

6

4504

4

48780

8

2531

6

20618

12

1126

8

11299

14

826

10

7092

16

632

12

4897

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