Market Development Prospects of Unbonded PC Steel Strand

Against the backdrop of the rapid development of modern infrastructure construction and new energy projects, unbonded prestressed steel strand, with its unique structural design and application advantages, is widely used in construction, bridges, energy, mining and other fields. Its market scale is steadily expanding, showing broad development prospects. 

This article will analyze its market prospects from three dimensions: current development status, demand upgrading and future market opportunities, for your reference:

I. Current Development Status

Unbonded prestressed steel strand is a prestressed material formed by coating the surface of high-strength steel strand with anti-corrosion grease and wrapping with HDPE sheath. Relying on the isolation effect of grease and sheath, the steel strand can expand and contract freely, and the stress is transmitted through the anchors at both ends. 

• It has the advantages of convenient construction and adjustable/replaceable later stage. Without the need for embedded corrugated pipes and later grouting, it greatly simplifies the construction process and shortens the construction period, with significant advantages.

  
  

• At present, the product strength covers 1570MPa to 2060MPa （with the 1860MPa grade as the mainstream）. The 1×7 structure 15.2mm (or 15.24mm) is the mainstream specification in the market, and the industry has realized standardized control of key indicators.

  
  

• As a senior supplier in the industry, we strictly control core indicators such as grease filling rate and sheath thickness, ensuring stable product quality that can fully meet the needs of various projects.

• Its application scenarios have been fully covered. As the largest application market, bridge engineering accounts for more than 40%. It is widely used in high-rise floor slabs and large-span venues in the construction field, high-end fields such as nuclear power and wind power, as well as traditional scenarios such as water conservancy, pipe corridors and coal mine support. 

Having been deeply engaged in the industry for many years, our products are widely used in various scenarios, and have been recognized by many engineering parties with stable quality and perfect after-sales service.

II. Demand Upgrading

Unbonded PC steel strand is facing comprehensive upgrading needs, and the iteration of industry technology and products is imperative.

• In terms of product performance, traditional products are difficult to meet the requirements of extreme scenarios such as wind power and marine engineering, and there is huge potential for customized high-performance products adapted to harsh environments.

  
  

• At the same time, higher strength grade products have become the core direction to adapt to complex projects. We have laid out R&D in advance and can provide customized solutions.

  
  

• In terms of quality control, there are differences in details of some products, and the full-process quality traceability system has not been fully popularized.

  
  

• The new national standard puts forward higher requirements for environmental protection and traceability. We took the lead in improving the full-process traceability system, strengthening the full-life-cycle quality control.

  
  

• All our products comply with the new national standard, and their environmental protection and traceability are in the forefront of the industry.

In addition, the engineering structure is developing towards large-span, lightweight and long-life, and products with higher strength, lower relaxation and better environmental protection have become the rigid demand of the industry; the improvement of construction standardization and intelligence has also promoted the synchronous upgrading of supporting anchors, tensioning processes and overall solutions, and the integrated application of intelligent monitoring technologies such as optical fiber sensing has become a new requirement.

III. Development Prospects

The future development trend of unbonded PC steel strand is clear, with abundant opportunities. High strength has become the core direction, and ultra-high strength products of 1960MPa and above will be gradually promoted. They can improve the structural bearing capacity, reduce costs, and conform to the goals of green construction and "double carbon". We have realized large-scale production of such products and can supply them in batches.

• Anti-corrosion and durability technologies are constantly iterating, and technologies such as environment-friendly anti-corrosion grease and thickened HDPE sheath are gradually popularized. We use high-quality environment-friendly grease and thickened sheath, and can customize double-layer protective coating for high-end products to further improve anti-corrosion and durability.

  
  

• The new energy field will become an important growth engine. The expansion of new infrastructure such as wind power and photovoltaic will drive the growth of demand for high weather-resistant and fatigue-resistant steel strand; the upgrading of traditional infrastructure such as urban rail transit and old bridge reinforcement will also continue to release stable demand. We can fully provide products adapted to various scenarios.

  
  

• In terms of industry pattern, the stricter quality standards and intensified competition will promote the improvement of industry concentration, and enterprises with R&D, production capacity and full-chain service capabilities will have obvious advantages.

• We have a professional R&D team, stable production capacity and perfect service system, took the lead in adopting low-energy consumption processes, and can provide recyclable sheaths and intelligent monitoring supporting services, with prominent core competitiveness.

China's prestressed products have continuously enhanced their international competitiveness. Driven by the "Belt and Road", overseas demand is rising. We have laid out the overseas market, our products have passed a number of international certifications, and we can provide international adaptation solutions to share international market opportunities.

Conclusion

As a core material for engineering construction, unbonded PC steel strand has a solid development foundation and broad application scenarios. Driven by high strength, high performance, intelligence and greenization, coupled with the incremental market of new energy and new infrastructure and the expansion of overseas markets, the industry has sufficient development potential. We will continue to deepen R&D and production, and provide reliable supply support for various projects with high-quality products, customized solutions and perfect services, helping the industry achieve high-quality development.