Step 4 - Add Mortar

The Samco88 mortar is mixed with water in the guideline ratio 5 litres of water to 25 Kg Samco88 (one bag). This ratio is determined by the workability of the mortar due to onsite weather conditions. Acosim admixtures can be used instead of water to allow faster curing times and therefore quicker opening of trafficked areas.

The mortar is then squeegeed into the joints over the area to be grouted - mortar is allowed to cover the surface of the stone elements as this will be cleaned off using the continuous sponge cleaning machine.

Any excess water (overhydration) in the mortar is allowed to drain out through the porous laying course and is vibrated out with the vibrating roller. This method of application reduces the risk of overhydration associated with traditional methods.