Pre-stressed concrete in bridge beam manufacture and the use of strand in post-tensioning systems have provided bridge and structural design engineers with major advantages. The emergence of this high performance concrete extends the design possibilities at the same time as improving the durability of concrete structures.
CWL products are incorporated into many world-famous bridges. High tensile strand is used either in pre-cast modules or used in-situ where strand is used to form tendons which are used in the post-tensioning of the structure.
From suspension bridges to opera houses CWL is helping to provide strength, support and additional safety. It’s a role that CWL's has been performing for generations and still continues, working with construction and concrete manufacturers to provide the best wire products for flooring, bridges, gas storage containers, concrete pipes, railway sleepers, panels, posts and ground anchors.
7 wire strand manufactured by CWL is at the core of high strength, pre-stressed concrete sleepers. The use of high strength concrete ensures that the sleepers are resistant to the aggressive conditions they will be exposed to during their lifetime.
By using a pre-tensioned design, any small cracks that could form as a result of accidental damage will automatically close, preventing degradation of the reinforcing and damage to the integrity of the sleeper. Concrete also provides excellent electrical resistance required to ensure reliable and safe track circuiting.
