Crack Monitoring/Tell Tales
Most buildings crack at sometime during their service life. Usually the cracks are of little consequence but they may be the first indication of a serious defect. Monitoring the changes in crack width across a crack helps determine the cause of cracking and decide what remedial work should be specified. South Survey supply a range of products for monitoring the movement of cracks.
A basic Tell-Tale crack monitoring gauge that monitors horizontal and vertical movement across a crack on a flat surface to an accuracy of +/- 1.0mm and by interpolation to +/-0.5mm.
Price £5.45 (£6.54 inc VAT)
A Tell-Tale crack monitoring gauge that monitors horizontal and vertical movement across a crack on a flat surface to an accuracy of +/-1.0mm and by interpolation to +/-0.5mm.
Price £10.50 (£12.60 inc VAT)
The Corner Tell Tale 'Plus' crack monitoring gauge monitors cracks in internal or external corners. The gauge is hinged and so it will fit into or around corners that are between angles of 70° to 180°.
Price £13.25 (£15.90 inc VAT)
A Tell-Tale that monitors displacement and horizontal movement where there is a 'step' across a crack due to displacement or 'out of plane' movement.
Price £18.50 (£22.20 inc VAT)
Prior to monitoring the crack, the widths and location of the cracks are measured. The Avongard Crack Width Gauge is specifically designed for this purpose.
Price £7.90 (£9.48 inc VAT)
This set contains all the products needed to set up a Tell-Tale crack monitoring system. Supplied in a courier bag with shoulder strap, it includes a Crack Width Gauge to measure the width of cracks prior to monitoring, Plus Tell-Tales, Corner Tell-Tales, all fixings and Crack Record Sheets. It also includes an illustrated manual with full instructions for use.
Price £109.00 (£130.80 inc VAT)
This set contains all that is needed to set up a crack monitoring system using precision callipers.
Price £239.00 (£286.80 inc VAT)
The Stainless Steel Discs can be fixed with Plastic Padding® about 80 to 100mm either side of the crack to be monitored.
Price £40.00 (£48.00 inc VAT)