ᐅ How does the indoor climate affect the stability of Malm stone?
Created on: 25 Jul 2021 14:37
N
nepe51
Hello everyone,
I am currently looking into the question: How does the indoor climate affect the stability of Malm? Malm – especially as a limestone layer – is used in various fields, for example in the construction industry and also for underground climate protection. I understand that temperature, humidity, and air circulation significantly influence the indoor climate, but to what extent do these factors specifically affect the structural stability and weathering behavior of Malm? Are there any particular aspects to consider when planning to use or store Malm over the long term? I look forward to your insights and experiences.
I am currently looking into the question: How does the indoor climate affect the stability of Malm? Malm – especially as a limestone layer – is used in various fields, for example in the construction industry and also for underground climate protection. I understand that temperature, humidity, and air circulation significantly influence the indoor climate, but to what extent do these factors specifically affect the structural stability and weathering behavior of Malm? Are there any particular aspects to consider when planning to use or store Malm over the long term? I look forward to your insights and experiences.
From a geochemical perspective, I would like to add that the stability of Malm is primarily influenced by the balance between carbonate minerals and the surrounding humidity. Fluctuating moisture levels promote the dissolution of calcium carbonate, leading to fragility at interfaces. Particularly critical is the relative humidity range of around 75-85%, which studies have shown encourages the highest dissolution rates.
However, an overly dry climate can cause cracking due to shrinkage – so both too much and too little moisture are equally problematic. In practice, a well-balanced equilibrium is therefore required.
Precise climate control, for example through HVAC systems, is recommended for areas subject to long-term stress.
However, an overly dry climate can cause cracking due to shrinkage – so both too much and too little moisture are equally problematic. In practice, a well-balanced equilibrium is therefore required.
Precise climate control, for example through HVAC systems, is recommended for areas subject to long-term stress.
This topic is really interesting, thanks for starting the discussion! 😊 From my own experience, I can say that you shouldn’t look at it as just dry or damp; the combination of both is what really matters. Malm also tends to soften in somewhat warm and damp environments – you could almost say the stone “sweats” a bit and becomes less solid.
I think it’s helpful to apply a bit of the “care principle”:
- Don’t overheat the room
- Keep the humidity moderate and stable
- Avoid extreme fluctuations
Kind of like with people 😉 Malm benefits from that too. And believe me, if you store Malm in a too damp corner, you’ll notice its stability decreases faster than you expect.
I hope this helps to lighten the dry facts here a little. Good luck to everyone working with Malm!
I think it’s helpful to apply a bit of the “care principle”:
- Don’t overheat the room
- Keep the humidity moderate and stable
- Avoid extreme fluctuations
Kind of like with people 😉 Malm benefits from that too. And believe me, if you store Malm in a too damp corner, you’ll notice its stability decreases faster than you expect.
I hope this helps to lighten the dry facts here a little. Good luck to everyone working with Malm!
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