This floor "set the standards" for resin flooring at the facility
Selection of Resin Material Manufacturer
Quality Tests - Terrazzo Resin was provided by the UKs four leading material suppliers. Each was laid in a sample panel and over a number of days was subjected to rigorous tests using products provided by our client. Following discussion and analysis of the results, the successful manufacturer was appointed.
Crack-Bridging Precautions
Before the epoxy terrazzo overlay could be installed, day work joints were bandaged with glass fibre scrim which was set into a flexible epoxy resin. This underlay system was completley compatible with the terrazzo resin screed, and was used to reduce the likelehood of slight movement of the concrete from transferring through to the screed and possibly causing a crack.
Laying Resin Screed
By using specialist sledges, the resin screed was machine laid at an output of up to 500 square metres per shift. Trowelling was carried out with a Power Float which further sped up terrazzo finishing rates.
Grinding Resin Terrazzo
Diamong grinding was employed to remove approximately 2 millimetres of the floor surface. The process is carried out dry, but dust was almost completley eliminated by efficient extraction on-board the grinders.
Resin Grouting
To ensure that pinholing remained minimal, a pure coloured resin grout was trowelled across the floor. A slight excess of grout was left behind to be ground off during the finished stages.
Terrazzo Polishing
Removal of the excess resin grout is carried out using fine diamond segments. To prevent a heat build-up and subsequent softening of the ground during its removal, water is normally used as a coolant during this phase.
Sealing Terrazzo
Epoxy resin is susceptible to colour change as the result of attack by ultra-violet rays. To reduce the effect of this phenomenon, we normally seal terrazzo with a single coat of clear polyurathane varnish.
