A sturdy and long-lasting foundation is built with careful consideration to the type of concrete used. Any construction project needs concrete, and choosing the right brand for your foundation will guarantee the longevity and stability of your building. However, with so many choices at your disposal, how can you decide which concrete brand is ideal for your requirements?
It can be intimidating to learn about the various types of concrete and their intended uses, particularly if you’re new to building. Every brand has distinct qualities and advantages that are suited to different foundation needs. The choice of concrete brand can have a significant impact on the final result of any construction project, regardless of size, whether it is a small residential house or a large commercial structure.
We’ll analyze the most widely used brands of foundation-grade concrete in this post, emphasizing their salient characteristics and advantages. In order to give you a strong foundation on which to build, we’ll also offer advice on how to select the ideal brand in accordance with the demands of your particular project. Let’s explore the world of concrete brands and learn what distinguishes them from one another.
Concrete Type for the Foundation Selecting the appropriate concrete brand for your foundation is essential to guaranteeing the robustness and longevity of your structure. The foundation’s capacity to support weights and withstand environmental stresses is directly impacted by the brand, which also sets the quality and mix proportions. Choosing a reliable brand will help you steer clear of possible problems like instability and cracks, which will ultimately save you time and money on repairs down the road.
Which concrete brand to choose for a strip foundation
You must choose the brand and type of strip foundation before you can respond to the question of what concrete to use for one. After all, the base may easily deform if you select the incorrect brand. It is crucial to consider the properties of both the soil and the home being constructed.
In this case, the theory of mixing concrete mixtures is essential. The following people will find this information useful:
And now for more specifics: the concrete’s composition, strength, and grades for the foundation.
What is a strip foundation
The load-bearing walls of the building are supported by a closed-contoured system of reinforced concrete beams known as the strip foundation. Any type of building, including wooden houses and monolithic structures, can be constructed using tape. Compared to other types of foundations, it also permits the use of less building material and requires the least amount of construction work. As a result, it is now among the bases that are most frequently used to build houses and cottages.
Concrete marking for foundation
The primary performance factor that is considered during the selection process is strength. In packaging and documentation, a class or grade is used to indicate strength.
Strength can be "encrypted" in the form of a concrete class in standards and design estimates. The designation is made up of:
- letter B;
- numbers indicating pressure in MPa.
Concrete class B30, for instance. Ninety-five of the 100 cubes you form out of this concrete (150 mm on each side) will be able to withstand pressure of 30 MPa after 28 days.
Brand
It’s easy to understand brands: the number following the capital M represents the theoretical compressive strength (kgf/cm2) of "mature" concrete. For instance, 28 days after pouring, a sample of concrete grade M100 can withstand compression under a press that applies 100 kgf/cm2 of force without being destroyed.
Grades M100–M400 are relevant for the foundation of a private home, although GOST offers grades from M50 to M1000.
Correlation between class and brand in terms of strength
The strength indicator is characterized by both class and brand. The relationship between the class and the brand is reflected in tables.
The key to comprehending the distinction between the brand and the class is found in the word "closest" in the table:
- Mark is an average strength indicator that theoretically properly showed by a hardened concrete mixture with the specified proportions “cement / sand / water”.
- Class – the actual strength of concrete, depending not only on the composition of the mixture, but also on hardening conditions (temperature, seal). For example, a mixture of the M200 brand, hardening at low temperature, without vibration, in the tests can only be shown class B10, or even B7.
It is pertinent to remember that concrete is an artificial stone that is ready to use, and that concrete mixture is the liquid that is contained in the mixer or formwork.
Mark and class are frequently linked to the cement content of the mixture (as the table makes evident).
However, the ratios, filler quality, and hardening conditions also affect the actual strength.
Mobility, frost resistance and water resistance
You might come across lengthy markings when ordering concrete, such as M400 B30 P3 F300 W10. Apart from the brand and class, this "code" includes details regarding:
- mobility (plasticity, workability) (P) – the ability to blur and fill the shape;
- frost resistance (F) – the number of freeze-thaw cycles withstood;
- water resistance (W) – the ability of concrete to resist the penetration of moisture under pressure.
For a private home’s foundation, indicators F and W are not as significant. If the W8 and F150 are properly waterproofed, they should be adequate.
You can read more about concrete grades and their applications in building here.
The operational GOST defines various concrete monolithic grades and governs their application. It is essential that you read their description before deciding which concrete brand to use—for a strip foundation or anything else. We will outline the most significant changes in brief.
M100
The distinction is a tiny quantity of cement; both are included in the list of lightweight concrete types. Most frequently applied in the early stages of building. M100 is not very robust and is inexpensive. For this reason, it is most frequently utilized in the construction of fences and outbuildings.
M150
There are no notable differences from the previous analogue in terms of characteristics. Application is limited to the planning phase of building projects. Out of this concrete, only the thinnest strip foundation is cast. For this reason, it’s utilized in wooden sheds, garages, baths, and homes. If rocky soil is utilized as a dependable foundation, this option is frequently utilized as a concrete strip foundation. Groundwater may be encountered, so it is not advisable to deepen the foundation. Applying liquid rubber will be necessary if you need to go further.
M200
Because M200 is more durable, it is utilized in one-story structures with both metal and wooden flooring. This type of concrete is occasionally used to create piles or floor slabs made of reinforced concrete. primarily utilized for pouring foundations in homes with frame panels. Suitable only for sandy soil. In winter and autumn, groundwater levels should be below freezing point, taking seasonal variations into consideration.
M250
Less frequently than alternative choices. This is because its cost is roughly the same as that of the M300, and its reliability is comparable to that of the M200. What is the customer’s drawback? .. Application range M250: pouring three-story houses’ monolithic foundations. construction of platforms, paths, paving slabs, and light-loaded floors.
M300
The mixture’s strength characteristics are enhanced by the high proportion of cement. Ideal for constructing simple building structures with no more than five stories. M300 is also employed in particular circumstances. For instance, it is selected when looking for a concrete brand, which is required for a foundation built on soil that has a lot of crushed stone and a lot of groundwater.
M350
Among the most popular varieties of concrete. Its reliability is far higher than that of any of its predecessors, including the M300. A long service life and resistance to freezing are advantages.
Ideally suited for multi-story building foundations, they are also utilized in the production of floors and the building of columns. Our recommendation is to use M350 for brick single-story homes. We use this brand in areas with clay soil and high groundwater levels.
M400
Possesses the strongest qualities. In order to reach this level, more cement and unique fillers are added. Building foundations for single-story and multi-story structures are made with this brand. Up to 20-story buildings utilize Grade M400.
What brand of concrete to choose for the foundation
If you have an infinite budget, you can adhere to the maxim "the higher the brand, the better." Standards govern the range of applications for various brands of concrete mixtures in other situations.
The ready-mix concrete produced at the plant and transported to the construction site via dump or concrete mixer trucks is referred to as BSG in the table.
It’s crucial to remember that the mixture needs to be unloaded at the location by no later than:
- 90 minutes after mixing (adding water) – when delivered by concrete mixer;
- 45 minutes – when using a dump truck, without continuous mixing.
Combinations with plasticity P1–P2 are delivered by a dump truck. concrete that is rigid, requires little water, and doesn’t include plasticizers. They typically concentrate on one point because P3 is the suggested plasticity for pouring the foundation.
When placing an order for a mixture, consider the following:
- the ability to comply with the time interval, taking into account the distance from the place of shipment to the facility;
- access routes for pouring concrete into the foundation formwork.
Theoretically, branded BSG conforms to standards by means of:
- quality components (cement, aggregates, water);
- maintaining proportions;
- quality control – from the stage of preparation of materials to unloading at the construction site;
- personnel qualifications and precise partings.
Brand | Recommended Use |
Quikrete | General purpose concrete suitable for most foundation types. |
Sakrete | High-strength concrete ideal for heavy-load foundations. |
The longevity and stability of any building depend on the concrete brand you choose for your foundation. It guarantees that the building will be able to endure a range of loads and weather over time. You can choose a grade that best meets your construction needs by being aware of the various grades and their uses.
When choosing a concrete brand, it’s crucial to take the type of soil, load-bearing requirements, and environmental conditions into account. While commercial buildings may need stronger grades like M25 or higher, most residential projects can get by with medium-strength concrete, such as M20.
Recall that the overall performance of the foundation is greatly influenced by the quality of the concrete mix and the accuracy with which it is prepared. To get the greatest outcomes, make sure you always abide by the suggested guidelines and, if necessary, seek professional assistance.
Ultimately, spending money on high-quality concrete not only extends the lifespan and safety of your building but also helps you avoid future repair bills. You can build a strong foundation that endures over time with the appropriate information and thoughtful planning.