What used to rubble foundation

When you create a durable foundation must be borne in mind that the quality of the design depends on a number of aspects that at first glance may not be apparent.And this applies to all concrete structures, which are created by the structure and massive props.If we do not take into account at least one factor, the entire scope of work can go down the drain.

In this article we will talk about one of these factors - on the choicerubble.Despite the fact that the process of the foundation may be elementary, but even the choice may depend gravel overall durability and structural strength.Rubble has many characteristics which the builders in the first place, and pay attention.Thus, if you are thinking to create his own foundation, do not use the first available rubble, as the consequences can be very serious.

In the article we also mention the main problem details that often occur when using improper rubble, as well as the way out of adversity.It should be noted that based on the information provided in this article, and you can save a lot.

main features choice of rubble for the foundation

First you need to understand that choosing gravel under the foundation necessary only in cases where the structure is being built, is indeed responsible project.It can be a house, a warehouse, or some kind of support.In that case, if we build a small shed or a gazebo, you can use the rubble, which is available or the cheapest on the market without any hassle.

also need to keep in mind that many owners, for example, use different types of crushed stone at one construction.In such a situation also creates a considerable threat to the future structure, as in parts of the base, for example, can occur deformations endanger the whole structure.

more details about the threats we will discuss later in this article.

Classification rubble origin

First you need to decide is the classification of the natural material origin.Often, in the construction of the following types of rubble:

• Granite.This is the most durable stone chips, which is regularly used in the most demanding construction.When using this product, you can be sure that the gravel because any problems with the foundation, certainly not going to happen.But at the same time to keep in mind that this resource is used rarely, since the cost of crushed granite - very high.Not all are willing to pay more for a stone that can be replaced with low-cost option.Of course, in certain situations, there is an urgent need for the granite material, and then to pay crazy money just falls.If the foundation itself is small, you can buy granite stone, unless, of course, finances permit.
• Gravel.This version of the rubble used more often than the granite.It does not have a much higher strength, but for the construction of a small private home or cottage construction - this excellent option.Accordingly, the price of gravel rubble sufficiently democratic.You can use a certain amount of granite gravel and crushed stone to improve the strength, however, a great need in this.
• limestone.For the construction of houses and other critical facilities such gravel is rarely used.The fact is that the strength of the limestone material is quite low, so it is used in construction to create garages, gazebos and similar objects.Of course, it is worth to note that as a substitute for the above types of gravel limestone material in any case should not be used.In extreme cases it may be a small private house that does not create a large load on the ground.
• slag.This gravel produced by crushing metallurgical waste.Of course, the main advantage of this rubble is the low price.Most often, this resource is 20-30% cheaper than similar in strength and other characteristics of stone rubble.
• Secondary.This type of gravel used in construction are rare.The strength of this resource is very low, so the construction of the foundation it is better not to use.If this happens, from the ground can be expected any surprises.Of course, there are exceptions to the rule, however, the strength of the secondary rubble really very low.

We would like to note that in circumstances where the water table is shallow, it makes sense to opt for granite rubble.In such circumstances, you can be sure that the foundation will be in an acceptable condition for a long period of operation.

Key Features rubble

should be borne in mind that in the rubble characteristics necessary to pay much more attention than in the origin of life.The thing is that on the basis of the characteristics we do understand, we fit a particular gravel to create a foundation, or it is better to abandon it.

Next we look at the main characteristics of rubble:

• Frost.This feature is especially important in those cases when it comes to areas where during the winter period, you can be faced with extremely low temperatures.If gravel is low frost resistance, the harsh cold basement characteristics will deteriorate significantly.Will falling strength of the material.Frost primarily determined based on the product freeze-thaw cycles.For the construction of a better use of rubble with a value of 300 cycles (F300).When it comes to tropical climates, the frost has no meaning.
• strength.Of course, it is to pay attention to the strength of rubble are people who want to create a durable foundation.As we have said, it is the most durable granite rubble.The stronger the material, the greater the load can withstand the foundation of the house.Despite this, under certain conditions, the granite material can have excessive strength, and to pay more because of this money is simply pointless.So, do not interfere with the calculations or analysis of a sample of the future construction project.
• Flakiness.This is another important characteristic for which you need to pay attention to all the people who are thinking to start construction.Flakiness - a characteristic of the flatness of the material.The most common rubble is characterized by a large number of plastic and needle grains.If the first grains too much in the stone, the concrete mix may be of low quality.In addition, it should be borne in mind that in this situation numerous voids are formed in the concrete, so special attention should be paid to sealing mixture.Crushed cubiform is the most practical solution, since in this case no problems with voids in the concrete should not be.Accordingly, it has crushed granite cuboid shape, which is why he is the most high-quality option for the construction work.
• radioactivity.Of course, the issue of security of using those or other construction resources are almost always is very serious.Despite the fact that most of the market is occupied by manufacturers conducted, can often fall prey to substandard products.Sometimes it can really get caught radioactive rubble that during the entire period of operation of the foundation will be felt.Fortunately, check whether the radioactive rubble, just enough.To do this, you need to have the dosimeter.If there is even a small hint of increased radiation from such products should be abandoned.
• fraction of rubble.This aspect is also of great importance.It should be noted that today in the construction work using multiple fractions of rubble, and everything depends directly on the extent of the works, as well as some other factors.For example, on large construction sites are often used coarse material, but the one with the same weight of fine material would have been much more effective, but much need for it simply does not.Next, we consider in detail the main parts related to gravel fraction.

important to remember that companies that are engaged in the implementation of rubble, have the relevant documents and licenses.Thus, if all officially, the manufacturer must provide a complete characterization of their products.Based on this information we are able to understand whether a particular gravel suitable for our construction works.At the same time, you can become a victim, and low-quality products, if the purchase gravel from unverified manufacturers engaged in selling products without a license and other key documents.Unfortunately, these untested sellers very much, and they often shed their portion of the price to attract more buyers.In the end, it turns out that the characteristics of the rubble can be disconnected with the work being done, and this is an extremely negative impact on the construction process.

Therefore, experts advise to overpay extra money, just to be sure of the high quality of the purchased product.

Analysis fraction of rubble

As we have said, a fraction of rubble - is the most important characteristic, which largely depends on the final quality of concrete structures.First of all it is necessary to analyze the main fraction of the material.

Fines rubble:

• 3h8 mm;
• 5x10 mm;
• 10 x 20;
• 5 x 20.

On the basis of fine gravel are held responsible construction.It is about creating slabs, bridge paintings, and other concrete structures.Of course, for the creation of residential buildings it is not necessary to use this fraction, but the quality of the concrete structures will definitely high.Fine gravel slightly more expensive basic fractions of the material, and it is also necessary to pay attention to the owners.

Middle fraction of crushed stone:

• 20x40 mm;
• 25:60 mm.

average fraction of crushed stone is often used for concrete production, construction of roads and railways covering elements.Also, the size of the crushed stone will be a good solution for laying the foundation.

Large gravel fraction:

• 20h70 mm;
• 40h70 mm.

Close rubble used to build production facilities, as well as large-scale concrete structures of various types.Part of a large fraction of crushed stone is used to create bridges.

There are also non-standard fractions of crushed stone, but they are most often used for decoration of different surfaces.It should say that direct the construction to be used exactly the standard size of rubble.

Lately most widely evroscheben.This material defined dimensions which are in each of the above groups.Accordingly, we do not need long to think about what material is best to buy.

It should also be remembered that in a similar construction work at various factions need the same weight of the rubble.Thus, if necessary, in the fine fraction is simply no better to opt for coarse material.

As for the creation of the foundation, there is a fraction plays a significant role too.The most important thing to make a choice in favor of quality material, which corresponds to a number of characteristics.When viewed gravel any faction can easily determine whether the material quality.

If the minimum volume of construction works, it is possible to use crushed granite fines.This is an expensive material, but you can be sure of high quality concrete construction.

So in the end I would like to note that the use of different gravel fractions still not recommended, as the foundation of the strength should be equal to around its perimeter.