Concrete block sizes. Dimensions and prices of concrete blocks for the foundation

For the quick and high-quality construction of supports for buildings and structures, concrete foundation blocks have recently been increasingly used. These are durable and dense structures with high load-bearing capacity, which are more convenient and reliable to use than a self-poured foundation.

Foundation concrete blocks - parameters and features

Before buying concrete blocks for the foundation, it is important to find out their main characteristics and features. The design of concrete products is somewhat different than that of hollow wall blocks. They do not have voids and are called solid. Foundation concrete blocks are produced with a large consumption of cement, which causes their higher cost. However, due to their excellent performance characteristics, the demand for these products does not decrease. Among the parameters that are valued by customers are:

strength M100, typical for heavy concrete;

high frost resistance (up to 50 cycles);

low moisture absorption.

We offer the best concrete foundation blocks

Timely purchase of concrete blocks for the foundation at a very affordable price is an opportunity that the 1001Blok.ru company offers its clients. We always have certified building materials for a variety of uses in stock. Our products are distinguished by the fact that only high-quality equipment is used in the production process and control is carried out at all stages.

Please note that the relatively low price of building blocks for foundations does not mean that the products we sell are of poor quality. Each unit has an ideal geometry because it is made in a special metal mold. During the production process, a mixture of sand, gravel, cement and water is subjected to repeated volumetric vibrocompression, which minimizes the number of pores, strengthens the material, and reduces the water absorption coefficient.

The assortment includes various types of products - solid ones for foundation masonry and hollow concrete blocks used for masonry walls. This material is a modern alternative to brick walls and foundations, while the characteristics of the blocks make it possible to simplify and speed up the construction of any object.

What determines the cost of concrete blocks?

If you compare the cost of the concrete blocks we present with the price of other materials with similar characteristics, it becomes clear that using blocks is much more profitable. The relatively low cost of this material allows us to maintain an affordable price for finished products.

Partnerships with leading factories allow us to keep selling prices for materials at a level accessible to most clients.

How much do building blocks cost?

The answer to this question depends on various factors. For example, hollow products are cheaper because their production requires less cement than the production of monolithic solid foundation materials. The following are built from hollow blocks:

• walls;
• bearing structures;
• interior partitions;
• fencing.

Solid products are used for foundations, basements, and basements. They are much stronger and more reliable, but are more expensive. Also, the price of concrete blocks is influenced by the dimensions of the products, wall thickness, strength parameters, frost resistance, etc. All products we offer have a high strength class corresponding to heavy concrete and frost resistance of 50 cycles, which makes them reliable building materials.

Concrete has long been used for the production of a wide variety of products and structures, and if previously reinforced concrete products were mainly made from this material and foundation and monolithic systems were poured, in our time it is used much more widely. In private buildings, concrete blocks 20x20x40 are very popular - it is very convenient to work with them yourself, and in industrial construction FBS blocks are in great demand.

Features of concrete blocks

To understand why products in this group are so popular, it is necessary to consider their main advantages:

• A wide range of product sizes, allowing you to choose the optimal configuration for any foundation width. Of course, the most popular option is concrete blocks 20 by 20 by 40, but sometimes they simply do not fit, so other configurations have to be used.
• High, obtained after construction. Solid products can withstand even significant loads, and hollow options allow you to create strong and durable walls. If you need special reliability, then options with groove fastening are suitable; they are fixed especially securely, and the walls after completion of the work are much stronger.

The photo shows a tongue-and-groove connection system, which allows you to create strong longitudinal and corner connections to ensure maximum strength

• Selection of manufacturing options: you can purchase both solid concrete blocks and hollow products, which are lighter in weight, making them much more convenient to work with. In addition, you can purchase options with filler, most often it is either slag or expanded clay. And finally, the most common option is, characterized by low weight and high thermal insulation characteristics.
• Possibility of self-production. The instructions for carrying out the work are very simple, and the size of the finished product may vary - it all depends on what form will be used. It is worth remembering that you should not make the dimensions too large, for example, you are unlikely to lift solid concrete blocks 40 by 40 by 40, so it is better to make elements of generally accepted sizes.

• The price of this group of products, regardless of the variety, is quite affordable, which makes them accessible to the widest range of developers. But you shouldn’t chase cheapness when purchasing, since too low a price most often indicates appropriate quality.

Important!
When purchasing, you should ask the seller about the availability of documents certifying the quality of the products.
This is the only way to guarantee that the products are manufactured in a factory in compliance with all necessary technology requirements.

Types of blocks and their features

All products of this type can be divided into two large groups depending on the specific application. Let's take a closer look at each of them.

Elements for foundations

Products in this group must meet several basic requirements:

The following types of foundation blocks can be distinguished:

• A widely used and well-known damper is 20x20x40 concrete blocks, which are most often used due to their ease of use and affordable cost. The products are produced solid, although, as studies have shown, the presence of several small cutouts does not significantly affect the overall strength, but the load on the base is reduced and the thermal insulation properties are improved, which is also an important factor.
• FBS blocks are large in size, so installation can be carried out in the shortest possible time. The disadvantage is the large mass of the products (if you ask how much a concrete block 240 by 40 by 60 weighs, you will be surprised - 1,300 kilograms). Naturally, it is simply impossible to carry out work without lifting equipment.

It is worth noting that the sizes of reinforced concrete blocks vary quite widely - from 90 by 30 by 60, and up to 240 by 60 by 60. But even the smallest option weighs 350 kilograms, so a lift will be needed in any case.

Wall blocks

This group includes a whole range of very different products.

Let's look at the most popular and widespread of them:

• Slag concrete products belong to one of the most budget-friendly sectors, but at the same time they have fairly high performance properties and a solid heat retention coefficient.
• A similar option to the first one is expanded clay concrete blocks; instead of slag, they use more durable expanded clay, which has excellent thermal insulation characteristics. You can build an entire house from such elements, however, it will have to be finished, since the appearance of the building will not be very attractive.

• Gas silicate structures have excellent thermal insulation characteristics. At the same time, the sizes of lightweight concrete blocks can be very different, which allows you to choose the best option for both external walls and partitions.
• Foam concrete products are similar to gas silicate products, but some of their properties are slightly lower than those of the option described above. Concrete blocks 40 by 20 by 40 are perfect for quickly erecting partitions; they cost little, but perform their functions well.

A separate option is concrete block B 1 20 50; these elements are not used for walls; they are used to make drainage structures on highways. This option is practically not used in private development.

Advice!
Gas silicate blocks must be additionally insulated.
You should not believe claims that they are enough for high-quality thermal insulation; in fact, this is far from the case.

Conclusion

The selection of optimal parameters is very important, since the strength of the structure and its performance characteristics depend on it. The video in this article will tell some points in more detail.

Solid blocks of heavy concrete are an ideal material for constructing strip foundations, basement walls and technical undergrounds, and for constructing retaining walls of low height.

Unfortunately, the mass and dimensions of the most technologically advanced elements on a construction site are so large that they can only be installed using powerful lifting equipment, which significantly limits the possibilities of an individual developer. However, foundation wall blocks - FBS - are actively used on construction sites and occupy a prominent position in the production range of large and small manufacturers of concrete products.

Manufacturing technology and block shape

Wall blocks are simple products made from monolithic concrete. For the production of simple equipment in the form of steel collapsible forms is sufficient. This allows numerous companies that are able to purchase the necessary inexpensive equipment to supply foundation blocks to the market. Quality is influenced by the manufacturer’s integrity and his adherence to technological discipline. It is especially important to correctly prepare the concrete mixture, select aggregate fractions and ensure the parameters of the process of setting and ripening of concrete.

The blocks have the shape of a parallelepiped with a length of 0.9 to 2.4 meters, a height of 0.3 or 0.6 meters and a width of 0.3 to 0.5 meters. The characteristic recess at the ends makes it easier to fill and seal the vertical seam. Heavy concrete of various grades is used for casting. Crushed gravel of optimal granulometric composition is used as a filler, although sometimes you can find products made from crushed stone of sedimentary rocks, for example, limestone or dolomite.

The blocks are not reinforced, since their maximum length prevents too large bending forces when exposed to a distributed load. However, during the molding process they are fitted with steel hinges to facilitate transport and installation.

Dimensions of foundation blocks

An important parameter by which the range of products differs is width. The larger it is, the more massive the wall of the building resting on the block can be, but at the same time the cost of the product increases. Typically, elements with transverse dimensions of 30, 40, 50 and 60 centimeters are produced.

The length of the standard block is 2380 millimeters; this size allows the most economical and technologically advanced construction of foundation walls. For the dressing device, elements with a length of 1180 millimeters are used. Blocks 880 millimeters long are called additional blocks and are intended for filling surfaces whose dimensions are not a multiple of the maximum length. They can be useful when laying out and making technological holes in the foundation wall.

The nominal length of the block differs from its physical size by two centimeters. This allows you to correct possible technological deviations in the dimensions of the product and provides the necessary structural clearance for constructing a vertical seam.

The usual block height is 580 millimeters, which corresponds to a nominal size of 0.6 meters. The difference of two centimeters serves to create a horizontal seam and allows the use of rod reinforcement or mesh in it to create a reinforced belt or screed.

Blocks with a height of 280 millimeters or 0.3 meters of nominal size are also produced. They are designed to adjust the height of the wall and are used in cases where the use of a standard size block is irrational.

Having the necessary equipment, manufacturers can offer additional blocks of other dimensions, for example, 0.6 and 0.4 meters long, with a standard height of 0.6 and 0.3 meters and a width of 0.2 or 0.3 meters. They occupy an intermediate position between foundation and conventional wall concrete blocks.

Concrete blocks for small foundations with a nominal height of 0.15 and 0.2 meters, a width of 0.2 and 0.3 meters, are usually produced in small enterprises using semi-handicraft technology. Designed for manual movement and installation in the design position.

Prices for foundation blocks

Product marking consists of an abbreviation for the product name - FBS, which means “wall (or solid) foundation block” and a set of numbers deciphering its dimensions. The first group indicates the nominal length, the second - the width, the third - the height. The index at the end of the name is used by some suppliers to inform about the composition of the concrete from which the product is made. The letter “t” indicates heavy concrete.

Table of the cost of foundation blocks from one of the manufacturing plants as of the end of 2015:

The cost of a foundation block depends on its dimensions and grade of concrete, which is associated with the consumption of materials and other resources. Relatively high handling and transportation costs can significantly increase the price when purchasing products from a reseller.

Blocks of reduced dimensions, for example 0.4 * 0.2 * 0.2, cost from 60 to 100 rubles per unit, depending on the brand of concrete used and associated costs. The specifics of the production of such products, associated with small enterprises and a wide variety of equipment and technologies used, creates a significant range of prices even within the region.