Hydrated Lime Question

[MdB]

I must admit, this is something that has been bothering me too.

Lime mortar + lots of water / moisture -> won't set / carbonate.

Lime mortar + quick drying + no moisture -> bad set / little carbonation.

Lime mortar + slow drying + just the right amount of moisture -> good set / good carbonation.

The point that has been made is that the carbon dioxide needs moisture to help transport it into the lime to allow it to carbonate. However, the comment is also made that a layer of water stops the lime from carbonating as water can't hold a lot of carbon dioxide. These two statements don't really add up together for me.

and Yes, a book that explains this is what I need to read.

 

[Flyfisher]

In approx the past 16 working days I've got through 15 bags of NHL and 7 bags of hydrate.

Many people spend their entire lives doing something based on the "what" without understanding the underlying "why".

Biff seemed to understand the question though, and the answer.

 

[Schoolmarm]

FF the way I think it works is like the surface of our lungs inside. The oxygen dissolves in the thin layer of moisture and from there it can pass through the cell membrane into the blood.

If our lungs were full of water it wouldn't work.

Yes as you spotted it is the physics of it. And Biff answered it beautifully.


I think that for all our differences on here, the one common denominator is our obsessiveness. YAAAAY!! :lol:

 

[OddJob]

In approx the past 16 working days I've got through 15 bags of NHL and 7 bags of hydrate.

Many people spend their entire lives doing something based on the "what" without understanding the underlying "why".

Biff seemed to understand the question though, and the answer.

In approx the past 16 working days I've got through 15 bags of NHL and 7 bags of hydrate.

Many people spend their entire lives doing something based on the "what" without understanding the underlying "why".

Biff seemed to understand the question though, and the answer.

You really are a bit of a Bod aren't you.
http://en.wikipedia.org/wiki/Biochemical_oxygen_demand
In your case I prefer the term "oxygen thief".

If we all worried about the "whys","whats" and "wherefores" we'd all be in the same home for silly people.
For most people it's enough to know how and why it does the job without going into absurd analysis.

Thankfully I well understand the "why" before I use the "what" which is why I don't use hydrate except as a plasticiser.
It's also "why" in 32 years as a bricklayer I've spent the last 15 only working in lime.
Like I said.
RTFM

 

[Flyfisher]

FF the way I think it works is like the surface of our lungs inside. The oxygen dissolves in the thin layer of moisture and from there it can pass through the cell membrane into the blood.

If our lungs were full of water it wouldn't work.

Yes as you spotted it is the physics of it. And Biff answered it beautifully.

Excellent analogy 'marm.

http://en.wikipedia.org/wiki/Biochemical_oxygen_demand

Completely irrelevant to the question.

 

[JoceAndChris]

Oddjob may have a lot to say about lime. (personally speaking I've understood 0%, and am now more confused than ever though. ) But these repeated, and increasingly abusive, aggressive posts towards valued members of this forum are intolerable.

I have no problem with your questions,I just wish they were asked by someone else who genuinely needs help with lime,not someone who needs more comprehensive help from the medical profession.

That's not FF-that's you.