The composition of wood concrete blocks: proportions, what are they made of? As technical progress advances and develops in the construction market, more and more various building materials for building a house with your own hands appear. If earlier the choice was small, namely stone, wood or brick, then today there are various types of concrete that are much better than conventional materials in terms of characteristics.
Arbolite blocks can be called one of these.
This material is unique in its kind and has the virtues of wood and concrete. But it is interesting that the composition of wood concrete blocks is quite simple, and you can prepare such a solution even with your own hands.
We also note that it can be used like ordinary concrete if you pour the mixture into the formwork, or you can use it for masonry if you use blocks. You can purchase this material in specialized stores, or you can make a mixture with your own hands and pour it into molds to create blocks. The only thing that is important to know is the exact composition, as well as the preparation technology and proportions. Let's take a closer look at this information.
The woodbolite, from which blocks for masonry are created, has several components, but the main ones are:
When you combine these elements, you get an arbolite mortar, which is used to create blocks. As you can see, the composition is simple and anyone can cope with its creation in order to use it later for their own purposes. The material itself is considered lightweight, and for this reason wood concrete blocks are ideal for masonry.
Compared with foam blocks and aerated blocks, wood concrete materials are much stronger and have a high level of resistance to impacts and cracks.
Despite the fact that the main component in the composition of the mixture for wood concrete blocks is chips (sawdust), it is highly valued and no worse in terms of characteristics than traditional materials, and even better, since wood concrete blocks retain heat better and help create an excellent indoor climate.
What are wood concrete blocks made of? Most of this material is wood chips. This material is considered the main one that is part of the composition. You can always buy this organic filler and it will not be expensive.
It is enough just to contact the local sawmill, where there are constantly large quantities of waste in the form of sawdust, and to agree with the workers. Most often, hardwood and conifers are used for the manufacture of mixtures and blocks. Pine, fir, beech, spruce, birch, aspen and poplar are ideal for making wood concrete mortar out of them. If possible, you can use a flax fire.
But most often they use wood filler - shavings with sawdust, crushed chips in a 1: 1 or 2: 1 ratio, sawdust and shavings in a 1: 1: 1 ratio.
Each proportion must be measured in volume. For example, if you want a 2: 1 ratio, take 2 buckets of shavings and 1 bucket of sawdust. If there is no sawdust, they can be easily replaced with flax fire or hemp stalks, and the composition will not change from this.
What are the requirements for a placeholder? First of all, you should choose the right size. It is not recommended to use large sawdust, since when the products are combined with water, they can simply swell, and the end result will be the destruction of the block.
If you overdo it and use too small particles, the cement slurry consumption will be increased. The best option is a particle size of 15 to 25 mm in length and no more than 5 mm in width. In no case should there be leaves and other impurities in the raw material.
Warning! Freshly cut wood of any species and larch in no case should be included in the wood concrete blocks, as it is prohibited!
Flax fire is considered a full-fledged aggregate that can and should be added to the solution. But due to the fact that it contains sugar, you will have to use chemical additives.
To improve the quality of the already prepared mixture for blocks, you need to pre-treat the fire with limestone milk, and the proportion is as follows - 4: 1, that is, if you take 400 kg of fire, you will need 100 kg of lime for it. After that, the mixed components must be kept in a heap for several days, and after this period of time, the manufacture of wood concrete blocks can be started. Thanks to this technology, the consumption of the cement mixture will be significantly reduced. So, for 1 m 3 wood concrete requires from 60 to 100 kg of cement.
Note, that if linseed fire can be used normally, hemp stalks will need to be processed before using.
Before using them, be sure to grind them.
Due to the fact that organic waste contains special substances that dissolve in water (and among them are sugar and resin acids), this will prevent good adhesion between particles. To remove sugar, let the wood chips stand in the air for at least 3 months, or apply a limestone treatment. If you use the second option, 4 days aging is sufficient. The mixture, which is on hold, must be mixed 2 times a day.
Whichever ingredients you find, in the absence of a mineral binder, nothing will work. It is this element that improves the composition of wood concrete blocks and makes them suitable for high-quality masonry materials. Portland cement M400, M500 and other brands that are higher are used in the role of such an element.
The consumption of this component largely depends on which aggregate was chosen, as well as the particle size, grade of cement you choose and characteristics. In order to understand at least a little in this, determine the consumption as follows - multiply the coefficient 17 by the brand of wood concrete.
For example, if you want grade 15 (B1) mortar, then for 1 m 3 wood concrete you will need 260 kg of cement.
In many ways, the properties that arbolite blocks possess depend precisely on chemical additives. They must be used, and there are no exceptions, the only difference is in the quantity and variety. Thanks to such additives, it is possible to use the aggregate without curing, since they are able to neutralize sugar and resins, which significantly improves the quality of the finished block.
The following substances can be used as such additives:
It closes all the pores in the wood so that moisture will not get inside. Can be used after the sugar has been removed.
This is another ingredient that does an excellent job of breaking down sugar. Thanks to him, the composition becomes durable several times faster.
Calcium chloride and aluminum sulfate are considered the best types of additives.
In proportion to the mixture, add from 2 to 4% of additives from the cement mass, or from 7 to 12.5 kg / m 3 . If desired, you can combine several types of additives with each other.
In order to make wood concrete blocks with your own hands, you should know not only the composition, but also the proportions. All components are used in the following ratio - 4: 3: 3 (water, wood chips, cement solution).
Chemical additives, as mentioned earlier, account for 2 to 4% of the total weight.
In order to prepare 1 m 3 wood concrete with your own hands, and then make blocks from it for laying, you will need:
Calcium or any other chemical should be added to the solution.
This composition is considered classic, as it is easy to make with your own hands and it has proven its reliability. To make from devices, you need a concrete mixer or just a large mixing container, shovels, buckets, forks (if you mix everything by hand) and the rest of the wood concrete components.
The stages of work are as follows:
Mix the contents thoroughly with your own hands or in a concrete mixer.
These proportions and the composition of the mixture of wood concrete blocks, which can be easily made by hand. All that is required of you is to be careful and follow the cooking instructions. Below is a table that will make it possible to even better understand what brands of wood concrete exist and what proportions of components should be observed when cooking with your own hands.
The question is quite reasonable. Since wood concrete is a specific material, is it possible that a specific solution is required for laying such blocks? No. Wood concrete blocks are placed on a standard cement solution, which can also be made by hand. It is made from sand, cement and water. In this case, the ratio of the components is 3: 1.
Water should be added until the solution reaches the desired consistency. Such a mixture would be ideal for stacking blocks.
Although arbolite is considered a very good material, it has some disadvantages. Developers can worry about a number of the following points:
There are difficulties in purchasing factory products in the regions. The most important points for the production of wood concrete blocks were described above.
Due to dimensional deviations, it may be necessary to increase the thickness of the seams up to 1.5 cm.This, in turn, will entail freezing of the masonry along the seam, increased material consumption and a decrease in the speed of masonry.
Manufacturers advise using warm perlite solutions for laying, but it will be a little more expensive. Recently, in order to improve the geometry of self-made products, surface milling has been used.
But besides that, there are a lot of positive aspects:
Now that you know the composition, proportions and technology for preparing wood concrete mortar, you can easily cope with the manufacture of blocks for your needs. It is an excellent material for construction, and it has many advantages that more than cover a few minor disadvantages.
( 1 grade, average 5 of 5 )
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