Hampstead, England is known for some of the most expensive housing in London with the village of Hampstead having more millionaires within its boundaries than any other area of the UK. When a homeowner in Hampstead wanted to construct a new home with a basement in the already dense neighborhood they knew construction would be a challenge. The area is quite developed and construction would take place right next to two luxury home. Combined with this the homeowners also wanted an exposed architectural concrete finish in the final design which calls for appropriate waterproofing.
Abbey Pynford a company that specializes in ground engineering work was brought on board to execute the tricky basement construction. Abbey Pynford developed a new innovative piling design and technique for this job to ensure that the basement area could be excavated safely while butting up against the two existing bordering properties. Shotcrete concrete construction was used to accelerate the production time and minimize construction joints.
In order to waterproof the basement Kryton’s Krystol Internal Membrane (KIM) concrete waterproofing admixture was added directly to the shotcrete mix – allowing the construction team to apply the concrete and waterproofing in one easy step. Kryton’s KIM was used to waterproof the basement floor slab, lower ground floor slab and basement walls. The team also used Kryton’s Krystol Waterstop System for all the basement joints.
The owners were very pleased with the results and impressed with the speed of the work.