Over the last couple of decades, LRPC strands have been widely used in India and caught momentum in the construction segment. However, the addition of advanced technology and capacity remained at bay for a longer period. With NEOTREX Steel Private Ltd., the construction segment will now get best-in-class LRPC strands. But before that, let us understand the LRPC strands.
Stress relaxation means a gradual reduction in stress with time at constant strain. It occurs in steel when they are held in a strained condition for a longer period and is a property of the steel itself. This plays an important role while designing prestressed concrete structures, i.e., lower relaxation loss is better for the prestressed concrete structure.
The relaxation loss is checked at a controlled temperature of 20°C and 70% of the specified breaking load. In Low Relaxation Prestressed Concrete Strands, the relaxation loss is less than 2.5% after 1000 Hrs as against 5% in Normal Relaxation Prestressed Concrete Strands (NRPC).
Latest technology for manufacturing LRPC strands
High-end wire rods from integrated steel facilities give almost zero defects related to wire rods in the end product.
Stringent process and quality controls at all the stages of manufacturing
Latest electrical and electronic controls for better identification and removal of deviations, if any.
Strands are conforming to cryogenic test, fatigue test and deflected tensile test at overseas independent laboratories.
Relaxation values for normal & Low Relaxation strand at different temperatures. (Initial stress = 70% of specified characteristic strength).
At NEOTREX Steel Private Limited, we always believed in offering advanced technologies in steelmaking, plant and machinery, test equipment and best process controls. We have approximately 1.8 million MT per annum production capacity for high-quality Wire Rods that are suitable for critical and high-end applications.
LRPC strand is one such product. These latest technology wire rod mills are best in their class and way ahead of the competition and few-of-its-kind in the entire world too. These high-quality WRs will give leverage while producing high-quality LRPC strands and help deliver consistent and best quality to our construction sector customers.
We have BIS, ISO certificates, and NABL accredited test laboratory for our Wires plant. We manufacture LRPC strands in sizes 3/8-inch, 1/2-inch and 5/8-inch diameter for our domestic and overseas customers as per IS14268: 2017, BS5896, EN10138, ASTM A 416/A, 416 M, AS/ NZS 4672.
