TECROC Thixotropic Joint Filler (TJF) forms a void-free fill of gaps from 5mm up to 100 mm in vertical joints, providing high-strength in-situ structural support right through the joint.

Suitable for placement by hand or mechanical pumps, TJF can be placed in a single process and is far less time consuming than the traditional methods involving the temporary caulking of joints, followed by flow grouting and finishing.

Its thixotropic “stay” qualities allow the material to build up in the joint with minimal leakage, leaving any excess material to be tooled off and finished within two hours of placement.

TECROC TJF has a low water requirement and develops a high early strength of 28 N/mm² after 24 hours, typically rising to 59 N/mm² at 28 days. Under normal conditional, the material achieves a final set after four hours.

PCE Limited, the leading installer of factory-engineered precast concrete systems, has used TJF successfully on a broad range of projects including a new primary school (pictured) in Withington, Manchester, currently under construction.

TECROC TJF is supplied in 25 kg bags, each yielding approximately 13.5 litres of mixed material.

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