The most common method of fixing the place of installation of blocks of this type of cellular concrete is to "plant" on the glue. It is not our task to talk about all the advantages of this technique and is not the subject of discussion in this article. Let us dwell on another, important aspect of carrying out repair or construction works with these products.
Such products - adhesive compounds - are available( in the form of dry mixes) and are prepared on site, just before use. It makes no sense to explain that in order to ensure the continuity of the work process, all necessary materials must be prepared in advance, and in full. That's why the consumption of adhesive for aerated concrete per 1 m2 of surface is required to know in order to determine correctly how much it will all be needed. But simply multiplying this indicator by certain parameters of the structure means to make a big mistake.
What you need to take into account
Qualification of an employee
One of the features of blocks from this artificial stone is their correct geometry. But in the production of any product, there are standards that determine the permissible error( tolerance).All these deviations eventually( over the entire length of the foundation tape or in height) "poured out" into a rather tangible number( number).Consequently, skewing is inevitable.
As it is not a mortar that is used for bonding blocks, but an adhesive that is "spread" by a layer of the order of 1 mm, then a series of blocks will not be aligned with this "interlayer".That is why, during the construction process, all products are "grinded" using a special planer. The importance of this issue is evidenced by the fact that companies selling aerated concrete sell such a tool.
Technique for laying
In this case, the method of applying glue is meant. If it is applied in a thick layer, then the flow will be one, and if you work with a special tool( spatula, trowel) - another, much smaller. By the way, the larger the adhesive layer, the lower the bond strength of the blocks.
Availability( or absence) of reinforcement between the rows of
It is clear that in the first case the flow rate will be higher.
Design feature of
The wider the used blocks( thicker the walls), the larger the layer of adhesive applied.
Degree of humidity of products
Aerated concrete absorbs liquids well. This is another feature of the porous structure of this product. Glue is used, as is clear, also in liquid form. Naturally, it will partially absorb. Therefore, much depends on the degree of drying of products and weather at the time of work. This fact should be taken into account when producing autoclaved aerated concrete independently.
Make-up brand( Manufacturer)
It is necessary to understand that the packaging shows the average, recommended digital data, and each manufacturer has its own.
Compliance with the preparation rules for
This is the quality of the mix( either manually or with a "mixer"), and the amount of water added, its temperature.
From all of the above it follows that all recommendations and numerical values for the flow are approximate, averaged. To give an answer to the question, which is indicated in the title of the article, we give some data:
- for 1 m3 of purchased gas blocks - about one and a half bags of dry mixture;
- for 1 m² of masonry - approximately 1 450 - 1,550 g at a thickness of 1 mm. For 3 mm - about 4.5 kg.
Advice
Before you buy glue, you need to pay, among other characteristics, attention to and such an indicator as the manufacturer's recommended consumption. It is enough to calculate how much it will be needed, and it becomes clear what is better to buy. It is possible that cheaper glue needs just more than the one whose cost is higher. And it is not a fact that by purchasing a compound at a low price, it will be possible to save considerably. But the quality will remain in question.
