TechJoint is a combination of polymer modified binder and selected aggregates. The binder is a compound blend of bitumen, polymers, fillers and stabilisers, that is specifically formulated to give good fluidity, low and high temperature stability and slump control.

TechJoint is delivered in factory batched ‘zip’ pails or 4 ply silicone bags ready to be heated by approved pre-heaters.

In standard joints 20mm graded granite is utilised. For shallower joints other sizes may be specified (please refer to the Technical Services Department). Utilising single size aggregate allows high binder to aggregate content thereby ensuring optimum combination of flexibility and load bearing capacity.

TechJoint is available in a range of formulations to suit variations of climates including continental and tropical, thereby ensuring flexibility of the joint in cold temperatures and structural integrity in very warm conditions. TechJoint is designed to extend the full depth of the road down to the structural concrete deck and will develop a tenacious bond to concrete as well as the adjacent asphalt arrises.

For joints up to 50mm wide an aluminium or steel strip is placed over the joint to prevent aggregate entering the joint. For joints over 50mm the steel plate assists in the distribution of wheel loads across the joints.

Advantages

* Flexible and completely waterproof.

* Ability to accommodate longitudinal, rotational and transverse movements.

* Easy and quick repairs following accidental damage should this occur.

* Able to withstand extremes of temperature from –30 oc to +50 ocambient.

* Low surface noise and excellent ride quality.

* Quick installation, thereby minimising disruption to traffic flow.

* Can be used across the full depth of the bridge deck.

* Will accept anti-skid finishes.

* Very low maintenance.