|Harri cutting a stone with a diamond blade|
Most of the floor has now been covered with slate. Even though the pieces are filthy, covered with dust and dirt, by a bit of eye-squinting and imagination one can already start to understand how the floor will look in the end.
|Harri installing slate|
Given it is a rather small area, the amount of cement used for installation is overwhelming.
|Floor, slate and a whole lot of cement underneath|
While the professional in charge, Harri has been installing the stones, Pekka has been reponsible for mixing cement. The current sack count just reached 59 sacks - in other words, 1475 kg of it. And somehow it seems we have not seen the end of it yet...
|A whole lot of empty sacks|
In parallel to this installation madness, there is an interesting spin-off project ongoing including 1 kg of white powder, a digital scale and some mixing instruments. Yes, we chose to go with a lighter color seam but before we can start to seam the floor there are two very important questions which need to be answered:
- Just how light do we want the seam to be exactly?
- Once we know the preferred tone, how do we achieve it?
Easy. Basically, you take an ordinary filler and mix it with a pigment. For lighter tones titanium oxide (the white powder) is used. Would you prefer a darker tone, iron oxide would be the reagent of choice.
And this may not come as a surprise, but as once again, Pekka did not want to take any risk in not getting the tone correct, he approached the challenge quite scientifically. He prepared a series of test mixes, each of them with a very specific amount of titanium oxide within the mix.
|Color samples drying in the sun|
The finished color samples seem to work quite well. In the different mixes, the concentration of titanium oxide ranges between 0% - 6%. All there is to do now is to choose the one we like the most. The ultimate seam.
|Which tone would you choose?|
Overall, also day two was very successful. There are still some pieces missing here and there, a whole lot of unfinished details and all of the seaming to be done, but things are moving forward. We'll be back, very soon!