What are the advantages?
Non-metallic composite reinforcing elements are made from glass-reinforced or basalt-reinforced plastic composite materials (АСП and АБП, respectively) and offer the best compromise on high strength and corrosion resistance. The breaking [rupture] strength of composite reinforcing elements is three times higher than that of A-III class-steel reinforcement, their anticorrosive properties are identical to that of good stainless steel, and their weight, at the same strength, is 9 times less.
The anticorrosive laboratory of the Opened Joint-Stock Company «Silvinit» (Solikamsk) ran tests of composite reinforcing elements for resistance to attack by potassium media, hydrochloric acid and alkalis. Based on the test results the laboratory prepared a final report on the possibility of use of composite reinforcing elements in building constructions under the action of corrosive media.
Reduction in prices of building constructions may be achieved through the use of non-metallic reinforcing elements having smaller diameters in comparison to metallic reinforcing elements. Besides, due to the freedom of the reinforcing elements from corrosion the durability of construction increases, and the volume of expensive repair work reduces or keeps to a minimum.
Properties
| Characteristics |
Metallic reinforcing elements, A-III class (A400C)
GOST 5781-82 |
Non-metallic reinforcing elements ( АСП — glass-reinforced plastic reinforcing elements, АБП — basalt-reinforced plastic reinforcing elements) |
| Material |
Steel (35GS, 25G2S, etc.) |
АСП — polymer bounded glass fibers 13-16 microns in diameter;
АБП — polymer bounded basalt fibers 10-16 microns in diameter |
| Ultimate tensile strength, MPa |
360 |
1200 – АСП
1300 - АБП |
| Elasticity modulus, MPa |
200 000 |
55 000 – АСП
71 000 - АБП |
| Percentage elongation |
25% |
2.2% |
| Stress-strain behavior |
Curve line with flow area under load |
Straight line with the elastic linear dependence under breaking load |
| Density, tin/m³ |
7 |
1.9 – АСП and АБП |
| Resistance to attack by corrosive media |
Corrodes with the release of rusting products |
Rust-resistant material of 1 st group of chemical resistance, including resistance to alkaline medium of concrete |
| Heat conduction |
Heat conductive |
Not heat conductive |
| Electrical conduction |
Electrically conductive |
Not electrically conductive – dielectric |
| Sections produced |
6 - 80 |
3.5 – 12, up to 20 in sight [in future] |
| Length |
Bars [rods] 6- 12 meters long |
Any length on customer's demand |
| Environmental friendliness |
Environmentally friendly |
There is sanitary certificate that these elements do not release harmful or toxic matters |
| Durability |
According to the Building Code |
Projected durability is minimum 80 years |
| Replacement of reinforcing elements depending on physical and mechanical properties |
6 A -III
8 A -III
12 A -III
14 A -III
16 A -III |
АСП -4, АБП -4
АСП -6, АБП -6
АСП -8, АБП -8
АСП -10, АБП -10
АСП -12, АБП -12 |
| Parameters of equally strong reinforcing cage at a load of 25 tons/m³ |
When the 8A-III-type elements are used, the mesh [cell] is 14x14 cm. The weight is 5.5 kg/m² |
When the 8 АСП -type glass-reinforced plastic reinforcing elements are used, the mesh [cell] is 23[23 cm. The weight is 0.61 kg/m² (9 times lower) |
| Economy |
Over the last 6 months the price for metal increased by 67%. |
Saving of financial resources due to replacement of metallic reinforcing elements with equally strong composite reinforcing elements is 10-30%. The dynamics of the price increase is 2-4%. |
| Sphere of application |
According to the Building Code |
As recommended by the Scientific Research Institute of Concrete and Reinforced Concrete. They are most efficient for highway engineering to make components on flexible bases (road bases and slopes, asphaltic concrete pavements, retaining walls, slabs, etc.). These elements show promise for making earthquake resistant belts of buildings, both existing and future |
Customer feedback
Usage examples
Learn more
Glass-reinforced plastic reinforcing elements — Microsoft Office Document (80 Kb)
Certification — Microsoft Office Document (32 Kb)
Non-Metallic Composite Reinforcing Elements for Civil Engineering — Microsoft Office Document (130 Kb)
Technical recomendations — Microsoft Office Document (95 Kb)
How to use non-metallic composite reinforcing elements of die-rolled sections in concrete constructions.
Specifications — Microsoft Office Document (421 Kb)
TU 5769-248-35354501-2007. Non-metallic composite reinforcing elements of die-rolled section.
Composite Reinforcing Elements: Another Step to Future — 01.06.2009
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