Essential Guide to Estate Wall Repair in Aberdeenshire

This particular wall surrounds the grounds of the entire estate, but this is where it comes to an abrupt end. Finished with graded quoins to tie into each course of granite stonework.

You can see the contrast of the fresh lime mortar that was used to finish the stonework compared to the grey cementitious mortar that it connects.

NHL 5, which stands for Natural Hydraulic Lime with a strength classification of 5, was utilized in the mortar gauge specifically designed for construction purposes. This particular type of lime is known for its excellent workability and durability, making it an ideal choice for various masonry applications. When mixed with a blend of sharp sand, the resulting mortar achieves a balance of strength and flexibility. The sharp sand enhances the overall texture and bonding capability of the mortar, ensuring that it adheres well to stone while also allowing for proper moisture management. This combination not only contributes to the structural integrity of the masonry work but also helps in accommodating slight movements within the building materials, thereby reducing the risk of cracks and other forms of damage over time. The use of NHL 5 in conjunction with sharp sand is particularly beneficial in historical restoration projects, where maintaining the integrity and breathability of the materials is crucial for the longevity of the structure.

Part of the process: dismantling the stonework and carefully numbering each stone initially adds time to the construction process but pays dividends when rebuilding the structure.

The wall, once it was dismantled. After this image was taken, I decided to take a few more out before I was satisfied the team was ready to start the laying process.