The expansion joint system contains an integral nosing, which is bonded to the substrate with high strength epoxy adhesive, and is suitable for both internal and external applications.  Being recess mounted, the system does not present a raised obstacle in the path of shopping trolleys or wheelchairs. Superior multi-directional movement capabilities allow 50% in horizontal movement along with vertical and lateral movement. This represents a clear advantage over many metal joint systems that cannot withstand vertical and lateral movement without significant damage to the joint, leaving fixings exposed to trip hazards and vehicle damage.

• One-piece, extruded EPDM elastomeric seal
• Integral nosings that bond to substrate
• Watertight
• Can be installed over green concrete
• Suitable for retrofit applications
• Much stronger than traditional elastomeric systems
• No mechanical fixings = installation time reduced by 30%
• Extremely durable, problem free, long-term solution
• Eliminates problems of noisy, leaking metal cover plates.
• Significantly reduces chance of substrate breakaway or cracking
• Recess mounted – meaning shopping trolleys and wheelchairs do not need to negotiate raised obstacles.
• Superior multi-directional movement capabilities
• Suitable for retrofit applications
• Available with fire barrier

Common Problem No 1:

Hairline cracks in the concrete are caused by vehicles constantly hitting the nosing of the joints between the concrete and expansion joints. As time progresses, the cracking becomes more severe and this leads to failure.

To counter this problem, CS’s Zip Block one-piece seal system absorbs the impact of the wheeled traffic, protecting the slab edge below (regardless of its condition). The epoxy bond remains intact under constant slab deflection and temperature extremes.

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Common Problem No 2:

With traditional compression seals, the adhesive can scrape off. When the slab shrinks, or is exposed to cold weather, direct tension is placed on the adhesive bond. When placed under this kind of stress, the bond can fail.

CS’s solution to this is a ‘hybrid’ seal system – it maintains the compression fit, but it has larger slots in the sides to act as an adhesive reservoir which maintains a continuous bond.

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Common Problem No 3:

The common assumption is that products regularly installed in car parks are always fit for purpose and are able to withstand high rolling loads. This assumption is wrong. Many products cannot withstand high rolling loads, which leads to loose, rattling covers that pose trip hazards and generate noise.  This presents ongoing challenges for facility maintenance managers.

The ZB expansion joint series is fit for purpose and is designed with sufficient mass to withstand constant wheeled traffic. The product has been subjected to rigorous testing, including rolling loads of 3000lb per wheel, with simultaneous vertical slab deflection; sub-zero temperature testing, including several freeze-thaw cycles. At 35,000 cycles, the seal exhibited no wear or tear from the rolling load.