Stone Repair and Rebuilding at Crystal Palace
Italian Terraces, Crystal Palace - Specialist Subcontractors to SSH Conservation
Marking up for stone indents. Areas of heavy erosion/damage to be replaced using new Bath Stone. Stones were positioned using Lewis Pins, rebuilding began once Japanese Knotweed had been removed,
Showing Area once stone indents had been installed, note the clean arris lines and tight joints between the original and new stone indents. Where specified, these idents are mechanically joined to the existing masonry using Stainless Steel fixings and anchor resin.
The masonry itself is rebuilt using sympathetic lime putty mortar with pozzolans to enable a faster set and improve the mortars robustness in colder temperatures.
During the dismantle phase, the stones were numbered and photos were taken to ensure they’re rebuilt in the correct sequence.
The pier stones were restrained back to the brickwork core using 10mm SS rod, with a single 50mm turndown embedded in the stonework. These restraints were embedded into the brickwork behind the membrane with 300mm embedment as per SE specification.
Due to the movement of the structure, any voids between the back of the stonework and the supporting brickwork were grouting using lime mortar with varying aggregate size to limit shrinkage.
