About straw-and-clay material
I mean the material usually named adobe or a sun-dried brick or a hand-formed brick or a cob.
As a rule this material consist from 70-80% clay and 30-20% straw.
But in my case it is just 20-30 % clay and 70-80% straw. It is named lightweight-cob or a lightweight-straw-and-clay.
I red about this material and saw how people use it in warm regions of insulation for walls. But it makes more questions if use it in cold regions like a Siberia.
How it can works in severe frosts?
How long years it have a good insulation?
What could be thick of walls for keep heat inside the house?
All understands that then less thickness of walls them less cost of building.
That is why I started experiments with lightweight-straw-and-clay material (LSCM). Main goal of experiments were to calculate a thermal conductivity of the material.
For this, I made several experimental samples in the form of a cube.
In each ones I made hole for thermal source.
The samples was created three types: 1. from hard straw; 2. from soft straw 3. from cutted paper.
In all of them is clay, little bit cement and Sodium silicate.
As a source of heat used metal coffee can with electric lamp and sand inside.
And of course we need put thermal sensor inside the coffee can.
The power of source managed by dimmer.
All electric power what lost to light is a source of heat inside the sand which is inside the old coffee can. It is because 80% of energy of lamp is a heat.
Even radiation energy lost inside the sand too. And as a result we can to gauge enter heat by ampere meter. In this case the voltage is constant.
Qenter = I * U
Q enter - heat power in Watt;
I - electric current in Ampere;
U - voltage in Volts; (220 Volt in Russia);
About theory of loss heat I write in next post.
Good luck!
As a rule this material consist from 70-80% clay and 30-20% straw.
But in my case it is just 20-30 % clay and 70-80% straw. It is named lightweight-cob or a lightweight-straw-and-clay.
I red about this material and saw how people use it in warm regions of insulation for walls. But it makes more questions if use it in cold regions like a Siberia.
How it can works in severe frosts?
How long years it have a good insulation?
What could be thick of walls for keep heat inside the house?
All understands that then less thickness of walls them less cost of building.
That is why I started experiments with lightweight-straw-and-clay material (LSCM). Main goal of experiments were to calculate a thermal conductivity of the material.
For this, I made several experimental samples in the form of a cube.
In each ones I made hole for thermal source.
The samples was created three types: 1. from hard straw; 2. from soft straw 3. from cutted paper.
In all of them is clay, little bit cement and Sodium silicate.
As a source of heat used metal coffee can with electric lamp and sand inside.
And of course we need put thermal sensor inside the coffee can.
The power of source managed by dimmer.
All electric power what lost to light is a source of heat inside the sand which is inside the old coffee can. It is because 80% of energy of lamp is a heat.
Even radiation energy lost inside the sand too. And as a result we can to gauge enter heat by ampere meter. In this case the voltage is constant.
Qenter = I * U
Q enter - heat power in Watt;
I - electric current in Ampere;
U - voltage in Volts; (220 Volt in Russia);
About theory of loss heat I write in next post.
Good luck!
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