
As part of the Zero Harm initiative, Testal was asked by Balfour Beatty Ground Engineering to come up with a method of assessing internal deterioration of hoses for pumping concrete and grouting.
The rubber hoses that are steel wire reinforced are designed to withstand 100 bar plus pressure, but bursts have occurred in the industry - with catastrophic consequences on site that have resulted in members of the public being sprayed with concrete.
The hoses are definable as ‘pressure vessels’ for legal purposes; as such, they should be inspected and assessed on a regular and programmed basis.
The issue has been, until now, how to non-destructively inspect the interior of a hose for damage and deterioration as well as the external surface (when a hose has been sheathed in plastic to try to mitigate against bursting).
Testal has solved this problem of assessment once and for all, by applying state-of-the-art thermal graphic viewing technology coupled with a practical method (patent pending) for use either in the workshop or on site.