Recently, Gaodetec delivered 8 containers of prestressed Anchor Head, Bearing Plate and Wedges for a project in Vietnam. This project uses a mixture of slab anchors of 3 and 4 strand, and multistrand anchors of 3 to 19 strands. All supplied anchors are for 12.7mm and 9.5mm prestressed strand sizes. As post tensioning is becoming more popular in developing countries, we are seeing an upward trend in prestressed concrete structure design.
Just 20 years ago, prestressing seems to be a taboo in these developing countries. Despite the fact that post tensioning can bring a lot of tangile benefits to the whole structure, developers and contractors are conservative in accepting the advantages that it can bring. Many were septical and conventional in the way they viewed civil construction. The growth and popularity of internet helped and transformed the development of post tensioning. With information now easily available over the internet, developers and consultants are well informed and have better understanding of post tensioning. This information-age development also accelerated the transformation and acceptance of post tensioning, from an unfamiliar technology to a widely accepted one today.
As market demand for post tensioning increases, the surge in post tensioning accessories supplies also effect the cost of carrying out such construction to be more transparent, thus bringing benefits to developers and contractors. Products like PC strand, Stressing Equipment (Stressing Jack, Pump, Grouting Machine etc.), post tensioning accessories (Anchor Head, Bearing Plate, Wedge etc.) become widely available and can be delivered with short lead-time.
Below are some photographs of Gaodetec prestressed anchorage, anchor head (before packaging) in our storage warehouse, ready for shipment.