Concrete strength by make and construction applications

On the strength characteristics of concrete buyer draws attention in the first place.It is believed that the stronger, better and more durable.However, this is somewhat simplistic, since it is necessary to take into account the feasibility of, and, consequently, lower costs on construction.Therefore, you should get acquainted more closely with the "index" data.

Mark defines the final "product" strength (kg / cm2), ie after the final hardening concrete solution.And it means "compression", as there is also the concept of "expansion".The figures given in the name of the product after the letters "M" to indicate the content and quality of the cement contained in the product.

use depending on the brand

M100 - 150

During the preparatory activities.Construction of "pillows", ties, fastening parts base (eg, spilling expanded clay layer), some decorative fencing and the like.It can also be used to prepare the grounds for lightweight structures (pergolas, pillars for support).Such a solution (with the aggregate fines) in the home is used to seal cracks, joints.

Price - ranging from 2750 to 3 100 rubles / m3 .

M200 - 250

is used quite widely in the private housing construction, primarily due to the optimum combination of "quality - price".Such concrete suitable for the construction of different types of foundations, pavings, stairs.It is used for septic tanks equipment, drainage, fencing, garden paths, and more.From "250" sometimes erect and walls, but not subject to heavy loads (septum).

price «200» - from 2 750 to 3 100 rubles / m3 , for «250» - from 3250 to 3550 rubles / m3 .

M300

is considered a leader in the field of retail sales, as in the individual construction is used almost everywhere.Unlike previous marks it may be used for casting floors, walls monolithic structures.

Price - from 4 100 rubles / m3 .

M350

In the private sector - in the regeneration of swimming pools, fountains, basements.But its use is limited to the higher cost.

For 1 m3 - from 4 700 rubles .

All higher grade of concrete are mainly industrial applications.

What to consider

• With more "robust" concrete solutions to work harder, since setting is much faster.
• Weaker freeze slowly.Therefore, most likely, in order to achieve uniformity of the structure have to worry about additional measures.For example, block-making.Naturally, the increase and the terms of work and effort.
• same strength can be achieved in different ways.Use more sand and less cement, but more "high" of the brand.Or vice versa, buy cheap cement (brand below), but to increase its share in the total volume of the mixture.
• presence of plasticizers, additives (described here).Some of them contribute to the strength of hardened concrete.