![](https://www.dombauwien.at/dbw/wp-content/uploads/2018/03/image10.jpeg)
NANO-Cathedral
![](https://www.dombauwien.at/dbw/wp-content/uploads/2018/03/image10.jpeg)
NANO-Cathedral is an EU-funded project to develope treatments with NANO-technology to improve the possibilities of protection and consolidation of natural stones.
![](https://www.dombauwien.at/dbw/wp-content/uploads/2018/03/koeln.jpg)
Testing monuments:
Cathedral of Cologne (D)
![](https://www.dombauwien.at/dbw/wp-content/uploads/2018/03/pisa.jpg)
Testing monuments:
Cathedral of Pisa (I)
![](https://www.dombauwien.at/dbw/wp-content/uploads/2018/03/image4.jpeg)
Testing monuments:
Cathedral of Vitoria (E)
![](https://www.dombauwien.at/dbw/wp-content/uploads/2018/03/image5.jpeg)
Testing monuments:
Cathedral of Ghent (B)
![](https://www.dombauwien.at/dbw/wp-content/uploads/2018/03/stephansdom.jpg)
Testing monuments:
Cathedral of Vienna (A)
![](https://www.dombauwien.at/dbw/wp-content/uploads/2018/03/opera-oslo.jpg)
Testing monuments:
Oslo Opera House (N)
![](https://www.dombauwien.at/dbw/wp-content/uploads/2018/03/image10.jpeg)
The granular structure of the stones (visible in a microscopic photo with zoom-factor 200) is weakened after centuries of weathering and decay.
![](https://www.dombauwien.at/dbw/wp-content/uploads/2018/03/stein-nano-t.png)
NANO-materials can build bridges (marked red in the electron-microscopy-photo) between the unfastened grains of the stone and replace the lost original binder.
![](https://www.dombauwien.at/dbw/wp-content/uploads/2018/03/zerstoert-gibs.jpg)
Damages to be treated with NANO-Agents:
Thick Gypsum-crusts
![](https://www.dombauwien.at/dbw/wp-content/uploads/2018/03/zerstoerte-fratze.jpg)
Damages to be treated with NANO-Agents:
Losses and disintegration of the surface
![](https://www.dombauwien.at/dbw/wp-content/uploads/2018/03/nano-behandlung.png)
Application of NANO-Treatments on a pinnacle.