Retard-bonded Prestressed Steel Strand 1770-12.7

Retard-bonded PC Strand is a specialized type of Prestressed Steel strand designed for use in precast concrete applications where controlled bond characteristics are essential. This product, also known as Retard bonded PC Strand 1770 12 7, offers a unique combination of high tensile strength and delayed bonding properties, making it ideal for projects that require precise control over the transfer of stress between the steel and the surrounding concrete. The designation 1770 12 7 refers to the specific grade and dimensions of the strand, with 1770 indicating the minimum tensile strength in megapascals and 12 7 representing the number of wires in the strand configuration. This particular specification ensures optimal performance in a wide range of construction environments.

The key features of Retard bonded PC strand 1770 12 7 include its ability to maintain a delayed bond until a predetermined time, allowing for more efficient curing processes and improved structural integrity. This characteristic is particularly beneficial in precast concrete elements where early load application can lead to cracking or deformation. By using this type of strand, engineers and contractors can achieve better control over the timing of stress transfer, resulting in stronger and more durable structures. Additionally, the strand’s high strength-to-weight ratio makes it an efficient choice for applications requiring both strength and flexibility.

Chunpeng Group is a leading and professional manufacturer of prestressed concrete (PC) steel materials, with over 30 years of industry experience.

We are committed to delivering high-quality products and innovative solutions for infrastructure and construction projects worldwide.

Our core products are  pc steel strand  (Ultra High Tensile Strength PC Strand, Normal Tensile Strength PC Strand), Unbounded PC Strand, Galvanized PC Steel Strand, Weather-Resistant & Anti-Corrosion PC Strand, and  PC Steel Wire . 

In addition to our PC strand products, we also supply  Prestressed Anchorage Systems and Photovoltaic Mounting Systems. 

Our products are as follows:

l Prestressed Steel Material include ultra high tensile strength PC Strand, Normal Tensile Strength PC Strand, Unbonded PC Strand , Epoxy Coated PC Strand , PC Steel Wire, Galvanized PC Steel Strand.

l Accessories Of PC Strand include Prestressed Anchorage, Prestressed Bellows , Aanchor Bearing Plate

l Prestressed Cable Photovoltaic Mounting System

l Photovoltaic Mounting System

  Our Prestressed Concrete Steel Strand is widely used in bridges, highways, railways, high-rise buildings, and energy infrastructure projects. All products are manufactured in compliance with international standards such as ASTM, BS, EN, AS/NZS, and GB, ensuring excellent performance, durability, and reliability for global construction needs.