Concrete is one of the indispensable building materials. Without it, there is no way to do with the repair and construction of buildings. The cost of the solution will depend on the number and type of components included in it. Concrete mixtures today are offered in a large assortment, different brands have certain properties.
Concrete M150 has found its wide application in the manufacture of reinforced concrete products. It is used in cases where the structure during operation is not subjected to heavy loads. The material has a low cost and excellent characteristics, which allowed him to gain popularity among other brands.
Specifications
The described brand of concrete refers to light mixes. It has an average level of strength and belongs to a class ranging from 10 to 12. The density of the material is approximately equal to 2200 kg/m3. This value may vary slightly depending on the coarse aggregate.
There is one more characteristic - mobility. Concrete M150has mobility within n1-n4. This parameter depends on how much water was added during the manufacture of 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 exposed to an aggressive external environment, otherwise the material will quickly lose its properties and collapse.
M150 concrete has a water resistance level within w2. This indicates that the construction of this material has a rather impressive degree of moisture absorption. Therefore, the design needs 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 much cheaper than the M-200.
Composition and proportions
Concrete M150 (GOST 7473-94) has a certain composition. 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 it does not make sense to use its high grades, since the consumption will be reduced. As for sand, the most commonly used material is with a fraction in the range from 1.5 to 2 mm. The aggregate cleans and rinses well.
Limestone or gravel is used as coarse aggregate. Crushed stone particles usually have sizes ranging from 5 to 20 mm. If this component is cleaned of dirt, then the quality of the concrete solutionwill be raised. Water must also be free 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 were mentioned above, is made 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 kneading. It is important to observe the desired ratio of ingredients, load crushed stone, sand and water. As soon as everything is well mixed, you need to add the required amount of water to the composition.
Conclusion
M150 concrete can be prepared using one of several technologies. Among others, a technique should be distinguished that involves the combination of sand with cement. These ingredients are well mixed. At the next stage, water and appropriate additives are poured. If you want to extend the life of the concrete mixer, then this technology should be used, because in this case the load on the unit will be much less.
