Concrete b15: features, scope, performance, varieties of

Concrete is one of the oldest types of building materials, which in one form or another was used to create structures of increased strength. Recently, however, began to appear various brands of this composition with additional properties or parameters. Therefore, the question of what characteristics of concrete B15 declared by its manufacturer and for which it can be used is very interesting for modern masters.

Features and scope

To begin with, it must be said that the B15 parameters indicate the compressive strength of the material. In this case, this particular type can have a lot of other properties that are responsible for the stability of moisture, temperature and ease of installation. Given this, all types of similar products are produced strictly according to GOST and have a specific scope.

Performance specifications

First of all, you should remember that the figure 15 indicates how much MPa can withstand cubes of concrete with a side of 150 mm. In this case, the tests are carried out on a material that, after solidification, is aged for 90 days in order to gain maximum strength.

Given this, the concrete grade B15 has found extensive distribution in construction.

• Most often, this composition is used for the manufacture of the foundation. However, designers do not recommend building houses with a height of more than five floors. For such structures use more durable mixtures or fundamentally different base structures.
• It is worth noting that the composition of concrete B15 is excellent for creating screeds or in the manufacture of platforms.. However, it is worthwhile to pre-order the addition of smaller fractions of crushed stone to make it easier to level out.

• This material also perfectly tolerates external influences and can be used outdoors.. Therefore, it is used for the manufacture of tracks, pavilions and other elements of the facade.
• Some craftsmen make other elements of it out of it, but at the same time add a little plasticizer to the composition..

Tip! Before acquiring this type of concrete it is worthwhile to clarify in advance its additional parameters that may correspond to this brand.

Varieties of auxiliary qualities

Immediately it should be said that the instructions for the manufacture of concrete of this brand implies the presence of certain characteristics and types of additions.

Therefore, they should know everything to navigate in the range.

• Frost resistance of such a composition almost always has the parameter F200. This means that it can withstand about two hundred cycles of freezing and thawing. Recently, however, began to appear brand and with lower rates.
• Also as a constant parameter is used and waterproof. It is denoted by the brand W4 and corresponds to the pressure of water per centimeter of a square cylindrical specimen. However, some manufacturers add special additives to the composition, increasing this number to six, but at the same time the price of the product rises.

• It is worth noting that the parameter on workability, which is designated as the letter P corresponds to mobile mixtures and for this brand can have two values. The number 3 at the end of a liter indicates that this composition is intended for manual feeding or using a conveyor. If this value is four, then the concrete can be delivered to the place of its installation using a special station and a sleeve.
• The characteristics of the fracture of the finished composition correspond to its brand, which for this solution corresponds to the type M200. In fact, this is the B15.
• It is worth noting that some manufacturers have their own GOSTs for the manufacture of a particular product, and therefore it is necessary when ordering the rhinestone to clarify this issue.

Tip! When ordering such concrete, professional masters immediately specify its additional characteristics and, if necessary, ask the manufacturer to use special additives.

Recommendations

• You should not buy expensive brands of concrete, if their additional properties or basic characteristics are not necessary. This will only lead to additional costs, almost without affecting the structure.

• If the work is done by hand, then it is worth choosing a composition with this parameter of mobility or workability, which will facilitate the whole process. This will greatly save time and effort. However, first of all it is necessary to focus on the final strength and moisture-conducting properties.
• When it is necessary to make laying in the winter period of the year, it is desirable to immediately take care to include special additives in the mixture that prevent freezing and accelerate the process of hardening of the concrete. You can also use additional methods of heating the substance or order a special solution with certain characteristics.

Conclusion

Ознакомившись с видео в этой статье можно детально узнать про бетон данной марки и его особенности. При этом взяв за основу текст, представленный выше, стоит сделать вывод о том, что прежде чем приобретать строительный материал подобного типа стоит детально изучить его характеристики и дополнительные свойства. Эти знания очень сильно пригодятся при монтаже, а также помогут сэкономить время и деньги (см.также статью «Бетонный колодец – инструкция по применению»).