Belzona Protects Trench From Acid Attack

The customer was experiencing problems within a 40 metre long trench near a tanker off-loading area.

Tankers carrying both Sulphuric and Nitric acid were being emptied regularly, with small amounts of acid being spilled each time. This acid had corroded through large areas of the concrete floor and trench, and there was a danger of the acid corroding through the remaining concrete and contaminating the underlying soil & water table.

One of our specialist engineers attended site to survey the problem, and concluded that the extremely hard wearing yet versatile range of Belzona Polymeric Coatings would be ideal for this scenario.  The ability to apply the Belzona polymer coatings cold and the fast curing properties were ideal for this situation.

Once given the instruction to proceed by the customer and all of the relevant Risk Assessments and Method Statements had been approved, a team of our factory trained Belzona approved technicians attended site to carry out the repair. They cleaned the concrete using high pressure steam cleaners, removing all traces of acids and oils to ensure the Belzona product bonded to the concrete substrate.

First the technicians used Belzona 4141 Magma Build, a concrete specific repair polymer, to rebuild the concrete back to the original profile, then applied 2 coats of 4311 Magma CR1, which is a high performance coating designed to withstand the most aggressive chemical attacks.

The Belzona process took our 2 engineers 8 days from start to finish, which is a lesser period than how long it would have taken to concrete the damaged areas, which would have also needed 28 days to cure. The 4311 Magma CR1 has many times the chemical resistance of concrete, meaning that the Belzona repair will far outlast any traditional repairs that could have been used.

For more information on how Pump Supply & Repair Group can utilise Belzona Coatings both in our workshop and on-site, please contact our Site Services Manager, Charles Lambley, on 07887 721900, or email him on clambley@pumpgroup.co.uk