He remembered that after adding some kind of chemical and just stirring it a few times, the turbidity of the glass water reduced considerably, becoming more transparent.
He didn't know how to determine their chemical composition.
The work of removing impurities and colors continued incessantly.
He blindly threw all sorts of chemicals with unclear compositions in his hand, to see the effect, make records, and if analysis was possible, to provide it.
Every day was a grind, often filled with hope only to lose it again.
He made himself extremely tired.
The situation with cement was the same.
He could produce a chemical substance similar to cement, but the paved ground wasn't as solid as the cement back home.
He found people to fire bricks and then used his homemade cement to build walls, plaster them, and lay floors.
To see how effective it was.
