[Case Study] Cleaning of the bicycle parking area paved with white Mikage pin stones in front of the ward office.

The granite that was thought to be black is actually white granite! Here’s a case where the person in charge was surprised by the comparison after cleaning.
We received an inquiry from a facility maintenance officer at a certain ward office in Tokyo regarding repair work on the granite paving stones in a bicycle parking area. The area had been in use for quite some time, and the dirt had accumulated to such an extent that the building's exterior gave a dark impression. Additionally, since it was a bicycle parking area for visitors, we were unable to completely close it off, which posed a challenge.
To address this, we introduced the high-pressure cleaning system 'HOTJEBLO Fujiyama' for dust prevention. The work in the bicycle parking area, which is about 50 square meters, was completed in approximately one hour.
The comparison after cleaning received great acclaim. The facility maintenance officer was surprised to find that the granite, which was thought to be black, was actually white granite.
[Case Summary]
■ Equipment Used: HOTJEBLO Fujiyama
■ Issues
- The repair work on the granite paving stones gave a dark impression to the building's exterior.
- Since it is a bicycle parking area for visitors, it could not be completely closed off.
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