H2S Damaged Lift Station Rebuilt and Protected with Belzona

KHIA ID: 7812

Industry: Buildings & Structures (BSTR)
Application: TCC-Tanks and Chemical Containment Areas (TCC)
Substrate: Concrete

Customer Location: Florida, USA
Application Date: Spring 2018

Products:
Belzona 1212

Belzona 4131 (Magma-Screed)

Belzona 4141 (Magma-Build)

Belzona 4911 (TX Conditioner)

Belzona 5811 (immersion Grade)

Problem: Concrete had no previous protective coating and showed damage due to H2S.

Photograph Descriptions

1. Training of the application crew.

2. Technicians applying Belzona 4911.

3. Application of Belzona 4131 (Magma-Screed).

4. Final coat of Belzona 5811.

Application Situation

A lift station suffered from H2S damage.

Application Method

The application was carried out in accordance with modified versions of TCC-9 and TCC-15. Preparation consisted of pressure washing and blasting the concrete to clear out any loose or H2S damaged concrete. Belzona 4911 (TX Conditioner) was applied. NOTE:(a small ground water leak had formed during the application of Belzona 4911, Belzona 1212 was used from a supplied Belzona 1212 emergency kit with reinforcement sheet rolled up and pressed into the hole and sealed with more Belzona 1212 over it - this repair stopped the ground water and we continued the application of Belzona 4911). Then, Belzona 4131 (Magma-Screed) was applied to the walls. NOTE:(Belzona 4141 was used if the damaged was greater then 1/4" on the walls and applied to the ceiling of the lift station). Belzona 5811 was applied as a two-coat system.

Belzona Facts

The application was performed as an expensive alternative installation of a new lift station. The Customer was impressed with the performance of Belzona products from past Know-How in Action case studies presented.

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