Expansion joints are integrated with bridge decks in
order to accommodate the relative movement between the structure's
segments, as well as the movement between the superstructure itself
and support abutments. Such movement is the result of thermal expansion
and contraction, creep and shrinkage of the concrete, substructure
settlement, live dynamic loads and other causes.
As a result of further advanced research and development, LCL's
single cell joints are manufactured using extruded steel rails that
ensure a watertight interlocking mechanism by using a neoprene seal.
What makes LCL's Single Cell Expansion Joint so unique is the additional
protection it provides to underlying structures, such as abutments.
This is achieved through the incorporation of a collector reservoir
which runs along the bottom of the steel rail joint and which collects
and drains away water, de-icing chemicals in cold climates and debris.
This unique feature further adds protection against corrosion and
extends the useful life of the concrete and steel in structures.
Furthermore, the thickness of the rail is optimized to increase
the joint's resistance to fatigue, therefore ensuring that the joint
has significantly increased durability throughout its service life.
The interlocking design of the extruded rails enables easy installation
of the neoprene seal during production and in the field.
LCL's strip seal expansion joints have been extensively tested by
independent organizations to ensure their water tightness and resistance
to fatigue. LCL has also thoroughly, and independently, tested the
movement capacity of its joints for skewed, curved and straight
All of LCL's expansion joints have been extensively tested by independent
organizations to ensure their water tightness.