Aerated concrete crumb as insulation and material for inexpensive monolithic walls

Almost all manufacturers of aerated concrete offer crumbs from this material for insulation. Debris in production remains after cutting blocks and from scrap. And this insulation can be used in cases where insulation is needed, something like expanded clay insulation: in fire hazardous places, under the floor screed as a backfill of strip foundations, for additional insulation of flat roofs (giving a slope) etc.:

I propose to look at the characteristics and properties of this material and evaluate it as a heater.

You can't tell right away whether these characteristics are good or not (unless you are an expert, of course). Everything is relative. Everyone knows what expanded clay is and its approximate heat-saving properties. Here are its characteristics:

Characteristics of expanded clay. Frost resistance is several times worse compared to GB, but thermal conductivity is also worse (which is good), but not by much.

What can be the advantage of aerated concrete crumb? The manufacturer reports that this insulation does not crumble on inclined planes like expanded clay:

You can use it in the roof, but this is not the most heat-saving insulation. It was probably used in this example because of the price. Or he got it for free. And the price is really not high:

In bulk - 600 rubles / m3. In the big run - 850 rubles / m3. Let's see the cost of expanded clay (for comparison):

The cost of expanded clay from this manufacturer is 3 times more expensive than aerated concrete crumb! And the thermal conductivity of this manufacturer is the same. Count yourself.

If you have your own transport (trailer), then when you go to a construction site, you brought a big bag and poured it out. Next time, another one. This is how I brought in a crumb of polystyrene for casting a layer of polystyrene concrete in the slabs of the permanent formwork of the foundation.

And in this way it is possible to manure a certain volume for insulation when backfilling the foundation. Some cast walls from expanded clay concrete, polystyrene concrete, wood concrete. If you import a crumble of aerated concrete yourself, in big-bags, and cast walls from this material (I don't know to cast a house, but a garage is possible), then the walls can be obtained at a price of about 1000 rubles / m3. Where else can you find heat-saving wall material at such a price?

Someone thinks that if you pour such monolithic walls of expanded clay concrete or polystyrene concrete during construction, you will not save much in comparison with factory products. I think there are savings, but not significant ones.

But using crumbs from aerated concrete - the savings are serious. There is a difference between 5 thous. rub. per m3 or 1-1.5 thous. rub / m3. Those. the walls of a monolithic house can be erected not for 600 thousand, and for 200 thousand rub. Yes, the strength will not be like solid aerated concrete. If the house is one-story with wooden beams, then the method is quite suitable. What do you think?

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Photos are taken from open sources, from Yandex. Pictures

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