When foundation settlement has resulted in cracked or buckled walls, the Chance Helical Pile Foundation System, combined with the Helibeam System of Masonry Repair and Reinforcement, offers a technically superior and cost-effective alternative to more expensive, disruptive and time consuming methods of stabilisation that require extensive excavations. ASRS helps in overcoming commercial subsidence problems. Chance Helical Pile & Helibeam System. Efficient stabilization & minimal excavations.
This beautiful cottage in Berkshire is believed to have been built around 1730 and has a number of old and more recent additions.
The property was suffering from external and internal cracking throughout. Much of the cracking had been caused by differential movement. This occurs when different sections of the building, in this case, later additions, are built on separate foundations. There can be a difference between the rate and the amount that the foundations settle, which causes separation and cracking between the walls.
The cottage was also suffering from brick arch lintel failure, which caused extensive internal and external cracking between the windows of the ground and first floor, both to the front and rear.
Following a site survey, our engineer designed a repair specification comprising of masonry beaming, multiple crack repair methods, and pinning.
We are excited to announce the opening of our new office in Darlington, marking a significant milestone in our commitment to providing exceptional service across the UK. Our commitment to excellence in structural repair services has always extended far beyond our South West roots, The trust and increasing demand from clients across the United Kingdom have been the driving force behind our latest strategic expansion.
The Challenge
Johnson & Johnson Vision Care Centre consulted ASRS to conduct a wall tie investigation at a large commercial property. Although there were no obvious signs of movement, one panel of masonry had leaned outward by 80mm at the top. After a thorough survey, it was determined that the inner and outer layers of masonry lacked sufficient wall ties to connect them properly.
The Solution
ASRS carried out numerous tests and endoscope surveys to assess the existing ties. Pull out tests were carried out on various remedial wall ties and the Helifix resi-tie achieved the best pull out results achieving pull out ratings at over 2.5KN’s. The masonry was drilled only requiring a 12mm hole and the tie installed using portable drills and then resin fixed on the outer leaf.
The Problem
ASRS can utilise many specialist methods of repair to restore the structural integrity of failed masonry. ASRS were recommended by Helifix, then approached by BMW who required a contractor to design a specification and carry out the installation that would restore the structural integrity of the 16 masonry piers where vertical cracking had occurred due to thermal expansion. The works were carried out over weekends to enable the plant to operate as normal, without disruption.
The Solution
On completion of our survey at the plant ASRS proposed a design for the necessary remedial works required. The specification was to install 322 single bands of Helibar crack reinforcing horizontally across the cracks and to reconnect the masonry piers back to the main structure thus offering substantial resistance to further cracking.
ASRS completed the works within the time scale allowing the plant to operate without any disruption to the day to day running of the plant.
The Problem
A local primary school close to our head office contacted ASRS to provide a specification and repair method to the concrete surrounds to a block of classrooms. Our surveyor met the local council on site and performed a hammer test to identify the worst areas of oxidisation.
The Solution
The repair scheme for this project was specified due to the oxidisation of the steelwork resulting in the concrete spalling and falling off making it dangerous for the pupils if the repairs were not to take place.
ASRS specified hacking off the loose and spalling concrete, cleaning the exposed steelwork and apply a zincrich primer to stop corrosion and then apply a high strength concrete repair mortar.
To do this we crated shuttering around the area to allow the concrete mortar to cure in the correct place and shape, this was then painted afterwards using a waterproof coating system.
