Damaged Stair Nosing at Distribution Center

KHIA ID: 8153

Industry: Commercial Facilities (COMM)
Application: FPA-Floor Problem Areas (FPA)
Substrate: Concrete

Customer Location: Dallas, Texas
Application Date: 12/12/2019

Products:
Belzona 4141

Belzona 5233

Belzona 5231

Problem: Years of salting the nosings lead to the concrete cracking. The cracks let water in and caused expansion in the concrete and the rebar starting to corrode leading to the steps falling apart. The area is a critical path for the drivers to come in, and causing a safety issue.

Photograph Descriptions

1. Removal of old cracked concrete

2. Application of 4141

3. Application of 5231

4. Application of 5233

Application Situation

Customer had stair nosings that were detreating from freeze thaw cycle, causing the rebar to corrode underneath.

Application Method

Substrate was jackhammered to remove all the loose concrete. Once the loose concrete was removed, any exposed rebar was cut out and the area was conditioned with Belzona 4911, in preparation for Belzona 4141. After Belzona 4141 was applied and allowed to cure. then first coat of 5231 was applied. After application, a colour quartz was applied to provide a non-slip surface. Next day top coat of 5233 tinted grey was applied.

Belzona Facts

Customer was going to remove the entire stairs and rebuild. The cost to rebuild and the down-time would have been high, and the rebuild would have occupied the stairs during the holiday season when it is used the most by the drivers. Customer chose Belzona because of the low down time and how long the application will last.

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