Hello!
I am doing a thesis at KTH on radon in building materials abroad. I am currently researching Yxhult and their "blåbetong".
I have some unanswered questions that I have been trying to get answers to for a while, but haven't received any help from Yxhult themselves.
I have seen that there are many knowledgeable people hanging out here, so hopefully, I can get some guidance in the right direction
Blåbetong has been manufactured under license abroad, according to reports, fly ash and local materials have often been used as ballast. Has uranium-rich shale ever been used in places other than Sweden?
Lightweight concrete based on sand (Siporex) started to be produced almost simultaneously with blåbetong. Was the initial purpose to compete with Yxhult?
What was the cheapest to produce at that time? Siporex or blåbetong (Ytong)?
How was the durability between them?
Why were so many houses built with blåbetong in Sweden when they could have chosen Siporex?
When did Yxhult acquire SSAB/ISAB, and how were they able when it must have gone very well for ISAB when the problems with uranium-containing Ytong surfaced?
Countries like China also have uranium-rich shale, is it possible for them to create a "copy" of blåbetong?
These questions have stalled me a bit, if anyone can provide some answers it would be appreciated, preferably with source references!
/Peter
I am doing a thesis at KTH on radon in building materials abroad. I am currently researching Yxhult and their "blåbetong".
I have some unanswered questions that I have been trying to get answers to for a while, but haven't received any help from Yxhult themselves.
I have seen that there are many knowledgeable people hanging out here, so hopefully, I can get some guidance in the right direction
Blåbetong has been manufactured under license abroad, according to reports, fly ash and local materials have often been used as ballast. Has uranium-rich shale ever been used in places other than Sweden?
Lightweight concrete based on sand (Siporex) started to be produced almost simultaneously with blåbetong. Was the initial purpose to compete with Yxhult?
What was the cheapest to produce at that time? Siporex or blåbetong (Ytong)?
How was the durability between them?
Why were so many houses built with blåbetong in Sweden when they could have chosen Siporex?
When did Yxhult acquire SSAB/ISAB, and how were they able when it must have gone very well for ISAB when the problems with uranium-containing Ytong surfaced?
Countries like China also have uranium-rich shale, is it possible for them to create a "copy" of blåbetong?
These questions have stalled me a bit, if anyone can provide some answers it would be appreciated, preferably with source references!
/Peter