HOW TO CHOOSE CONCRETE
Concrete is a solid artificial material used for the construction of industrial, residential or office premises. The quality of concrete directly depends on the construction of the building as a whole. Therefore, it is necessary to make the right choice with respect to the brand of concrete.
What brand of concrete to choose?
During the construction of buildings and buildings, when designing design reinforced concrete structures, you need to correctly choose the brand of concrete. There are a total of several dozen. Concrete pumping from A1 Ready Mix. Cheap concrete suppliers. Each of them has its own characteristics and is suitable for performing specific tasks in construction. Brands are determined by three characteristics: strength, frost resistance and moisture permeability.
Concretes are divided into heavy and light. For light types of concrete, a porous material is used as a filler for a sand-cement mixture: agloporite, shungisite, expanded clay. Filler for heavy concrete is a variety of fractions of rubble. Lightweight concrete is usually used for the construction of internal partitions, for the insulation of load-bearing walls.
Heavy concrete is used as a structural material for the placement of foundations, the manufacture of floor panels, structural components such as beams, columns, etc., as well as for the design of wall panels. One of the important characteristics of heavy concrete is the strength grade. It is indicated by the letter M and a number (for example, concrete M 100).
The most common brands of heavy concrete used in civil engineering are Nos. 75, 100, 150, 250, 300, 350. Concretes M 75, 100 and 150 refer to low-grade concrete grades and are applied before pouring foundations in the preparatory stage. On the sand base lay a layer of concrete of a fair mark. A vertical reinforcement is then placed in this layer.