Concrete M150: characteristics and features
Concrete acts as one of the irreplaceablebuilding materials. Without it, there is no way to do in the repair and erection of buildings. The cost of the solution will depend on the number and variety of components included in it. Concrete mixtures today are offered in a wide range, different brands have certain properties.
Concrete М150 has found its wide application atmanufacture of reinforced concrete products. It is used in cases where the structure is not subjected to heavy loads during operation. The material has low cost and excellent characteristics, which allowed it to gain popularity among other brands.
Specifications
The brand of concrete described refers to light mixtures. It has an average strength level and belongs to the class in the range from 10 to 12. The density of the material is approximately equal to 2200 kg / m3. This value can vary slightly depending on the large fraction aggregate.
There is another characteristic - mobility. Concrete M150 has a mobility within the limits of n1-n4. This parameter depends on how much water was added when making the solution. As for frost resistance, in this case it is equal to f50. Due to the low level of resistance to frost, concrete is not allowed to be used in places where it will be affected by an aggressive external environment, otherwise the material will quickly lose its properties and collapse.
Concrete M150 has a water resistance level inthe limits of w2. This indicates that the construction of this material has a fairly impressive degree of moisture absorption. Therefore, the construction requires an additional layer of waterproofing. Such concrete is preferred for a variety of reasons. One of them is that the material occupies an intermediate position between the brands of solutions M-100 and M-200. It costs a little more than the M-100, but is much cheaper than the M-200.
Composition and proportions
Concrete M150 (GOST 7473-94) has a certaincomposition. For example, cement is added in a volume of 11% of the total mass. Portland cement I-II 32,5 is used for mixing. But the use of high brands does not make sense, since the consumption will be reduced. As for sand, the material with a fraction in the range of 1.5 to 2 mm is most often used. The filler is well cleaned and rinsed.
As a large aggregate is usedlimestone or gravel. Particles of rubble usually have sizes ranging from 5 to 20 mm. If you clean this component of dirt, then the quality of the concrete solution will be increased. Water should also be freed from biological and chemical additives. In order to give concrete moisture resistance and frost resistance, special additives are used, as well as to improve strength.
Production features
Concrete M150, the characteristics of which werementioned above, is manufactured using a special technology. For this, it is most effective to use a concrete mixer. The inner surface of the container is wetted to prevent the formation of a large amount of dust during batching. It is important to observe the required ratio of ingredients, load gravel, sand and water. Once everything is well mixed, you need to add the necessary amount of water to the composition.
Conclusion
Concrete M150 can be prepared according to one of theseveral technologies. Among others, it is necessary to distinguish a technique that involves the connection of sand with cement. These ingredients are well mixed. The next stage is filled with water and appropriate additives. If you want to extend the life of a concrete mixer, then this technology should be used, because in this case the load on the unit will be significantly less.
