Concrete Scanning to Balcony Slab
Our client needed to install new service prices through 150mm diameter holes core drilled through the walkway floor slab. The new holes had to be cut between adjacent flats, outside existing bathrooms.
The walkway slab is finished with tarmac/mastic asphalt screed, overlying a sand cement screed. The Hilti PS1000X-scan located steel reinforcement at a depth from the surface of approximately 120mm and the overall slab thickness 260mm.
Our scope of works was to carry out an accurate scan of the area where the new service pipes are intended. We marked out the slab service to show the positions of steel bars over a length on 500mm and a width of 250mm to allow for some flexibility in positioning the core drilling. All bars within this are 500 x 250mm box were marked up using semi-permanent spray paint.
Copies of the scanning data as a record of the survey (flat numbers, bar location) were submitted to the Structural Engineer.