Cement lime mortar m50 technical specifications. Solution m50. Prices for cement mortar M50

Ready masonry mortar grade 50 is suitable for laying stone or brick structures. It allows you to even out the roughness of the stone, smooth the seams and joints, as well as evenly distribute the pressure throughout the structure. This brand of solution qualitatively fills the seams between non-jointed elements, increasing the moisture resistance of the treated area. The binder in grade 50 is lime.

Characteristics:

• Strength - M50.
• Frost resistance - F50.
• Mobility - PC4.

Ready-made masonry cement mortar brand M50: price with delivery

Advantages of the ready-made solution:

• A simple, proven formula.
• We will do the work of preparing the solution for you - it remains to accept the mixture of the finished consistency.
• Excellent strength and moisture resistance.
• Economic consumption.

The price of ready-made masonry cement mortar brand 50 starts from 3000 rubles. We can deliver masonry mortar brand 50 at the place and time specified by you. We guarantee that we will bring the mixture to the object in working consistency. Delivery round the clock, we leave to Moscow and MO. Its cost will depend on the location of your construction site.

You can also buy other brands of masonry mortar from us, for example, M100 brand mortar at a low price.

One of the most popular mortars based on cement, additives and sand is M50. It is used in almost all construction work related to the construction of walls, the preparation of horizontal bases (screeds), sealing cracks, bumps and other defects. It is produced at the Sorzha plant in accordance with GOST 28013-98 and is delivered to consumers completely ready for use in special machines (auto mixers).

Technical characteristics of the solution M50

The M50 solution has the following average characteristics:

• strength M50;
• frost resistance F50;
• workability PC4;
• density up to 1500 kg/m 3 .

Depending on the conditions of use and purpose, its characteristics may change in the direction of improving all or some of the parameters by adding various additives, plasticizers and other components to the composition. Changes in the composition of the solution are made in agreement with the customer.

A cement-lime mortar M50 is produced based on cements M300 or M400, additives and washed river sand without inclusions of clay substances, gravel or pebbles. The size of sand fractions is up to 2 - 2.5 mm.

The ratio of components by weight in the solution is standardized and depends on the brand of cement.

For outdoor masonry, in places of high humidity or in structures below ground level, a cement-sand mortar M50 can be produced without the addition of additives. It consists only of sand and cement in given proportions.

Ready-made masonry cement mortar grade 50, as well as cement-lime mortar, can be bought at the Sorzha plant in any volume with delivery, both on the day of the order, and at any required time. The plant serves customers in St. Petersburg and the Leningrad region, regardless of the distance from the plant.

Our own fleet of special machines allows you to deliver the solution to the facility in working condition. According to the technical characteristics, it is desirable to use the ready mix M50 for construction within 1.5 hours after unloading. Features of the company's vehicle fleet allow delivering 7 or 10 m 3 of solution in one flight. With a larger order, the amount of solution must be a multiple of these numbers.

You can order M50 solution in several ways:

• by adding the necessary product on the site and using the "Cart" button for an online order;
• write to e-mail;
• make a phone call;
• order a callback.

All the subtleties regarding the price, payment, delivery terms and solution formulations are agreed upon in working order. The office of the company is open from 10.00 to 18.00. Mortar-concrete units of the plant make it possible to fulfill orders of any volume. They work under the control of automation and all products comply with the specified parameters. We work with enterprises of all forms of ownership and individuals.

Here you can make the necessary calculations for the preparation of mortar for masonry with your own hands. Enter the required number in the "Volume of solution" column, select the brand and you will get the exact proportions of cement, sand and water. Mortars are prepared for different purposes, for example, for laying the walls of a house and laying the walls of a furnace, the preparation recipe is somewhat different. Be careful when calculating.

Mortar for laying bricks

For many years, bricks were used to build walls, but the development of building technologies has led to the fact that new materials have appeared on the market - blocks of aerated or foam concrete, ceramic blocks, as well as blocks of expanded polystyrene. In order for the walls of the building to be strong and resistant to various atmospheric influences, different solutions are prepared for laying various types of building material. For this, building mixtures with a cement, cement-lime or lime base are used.

Cement mortar is used for the construction of walls made of concrete blocks, ordinary or clinker bricks. It should be noted that the brand of such a mortar for masonry should not be higher than the strength class of the material used for the construction of walls. The solution should be plastic, easy to apply and not drain from the wall. To ensure these qualities, plasticizers are added to the composition of the mixture, and in order for the solution to maintain the water resistance of the joints, sealing additives are added to it. It is especially good to use cement mortar for walls that are exposed to precipitation or are in a humid environment. It can be the walls of the foundation or the facade of the building, the basement, the walls of the chimneys.

How to prepare the solution yourself?

To obtain a solution, cement is mixed with sand having an average fraction. To prepare the simplest mixture, 3-4 parts of pure sifted river sand of the middle fraction are added to 1 part of cement. The dry composition is mixed well, and then water is gradually poured until the solution turns into a homogeneous mass with the required level of mobility. However, such a composition quickly hardens during masonry, therefore, to increase plasticity and astringent qualities, clay or plasticizers are added to it. Such a mortar is easier to level on the wall surface, it will provide a better seal, and the masonry will look neat. A small amount of soap, detergent or washing powder can be added to the mixture as astringents.

Masonry mortar grades

Solution M25. This is a cement mortar for laying bricks or laying other types of stones. The mortar brand M25, is its official and correct name, is used both in special literature and in the practice of construction work. Mortar M25 refers to mixed (complex) mortars for masonry. M25 cement mortar consists of mortar filler, binder and water. The role of the filler for the M25 solution is usually played by ordinary sand. Moreover, the cleaner the sand, the higher the strength of the solution.

Solution M50. It is one of the most popular. It is a mixed, complex mortar for laying bricks and other types of stone, mesh floor screed. M50 consists of a binder, water and filler. The filler is sand, well cleared of clay, which improves the strength of the cement mortar. The binding element is cement, water is used, of course, also purified.

Solution M-75. The strength of the M75 cement mortar depends on the proportions in which sand is mixed with cement, as a binder, and water. M75 is a high grade mortar, its proportions are 1 part cement to 3 parts sand and a little less than one part water. Therefore, it is plastic and durable, which makes it easy to use. Cement mortar M75 is indispensable for the installation of precast concrete structures, pouring leveling screeds, brickwork.

Solution M-100. M100 cement mortar is mainly used in masonry and plastering works, as well as in the manufacture of cement floor screeds. The main difference between the m 100 mortar and concrete of a similar brand is the absence of coarse aggregate (crushed stone) in the mixture. Naturally, the composition itself is also different. Significantly higher content of cement and sand than in concrete of the same grade. Mortar M-100 can also be referred to as: cement, building, masonry, plaster mortar.

What is needed to quickly solidify the solution?

To increase the hardening time of the composition during masonry, a cement-lime mortar is prepared. To do this, lime paste is added to the cement-sand mixture. First, 2/3 parts of water are poured into the cooking container, then 1 part of cement and lime are poured out, mixed well for at least 15 minutes, then the remaining water and 3-4 parts of sand are added. Such a solution is also used for the construction of walls from foam and aerated concrete, having previously added special foam additives to it, which will increase the thermal insulation of the joints.

Lime mortar is used in the construction of internal walls or interior partitions. It is characterized by high plasticity, so the walls will look neat. To prepare the solution, mix 1 part of quicklime with 3 - 5 parts of pure sifted sand, mix until a homogeneous dry mass is obtained, and then add the required amount of water. The solution must be homogeneous and free of lumps.

In the case of preparing a mortar for masonry, its composition depends on the quality of the components used, weather conditions, temperature fluctuations and is determined empirically in each case.

Cement-lime mortar is a mixture with high adhesion, strength and elasticity. It has proven itself as a masonry mortar for building blocks and bricks, as well as for plastering various surfaces indoors and outdoors. The scope of application is not limited to finishing work, this also includes laying pipes, processing reinforcing mesh, pouring monolithic floors. One of the most important advantages of such a composition is reliability and moisture resistance.

In addition to the above properties, lime is also characterized by bactericidal properties that prevent the formation of fungi and molds. It is worth noting, unlike cement mortar, the ability of the material to pass moisture, which has a positive effect on the level of humidity inside the room. Hence resistance to temperature extremes up to 65 °C and frost resistance down to -50 °C.

Good adhesive properties make it possible to work with any materials, even with wood. The mixture is easy to lay, filling even the smallest cracks and bumps. The increased plasticity of the lime mortar makes it possible to extend the drying time up to three hours, thereby avoiding cracking.

According to the characteristics of fat content, the following lime compositions are distinguished:

1. normal - with an optimal degree of plasticity, practically do not crack and shrink when dried;

2. skinny - used for any facing work, as they have minimal shrinkage;

3. greasy - a highly plastic material with a large amount of binders, therefore it is well used as a masonry mortar.

Fat content can be adjusted by adding various components. So, to lower the value, porous sand is added, and lime increases the fat content back.

According to the ratio of density, solutions are divided into:

• low density - up to 1500 kg/m3;
• medium density - from 1500 kg / m3.

The ratio of the components of the solution determines the scope of its application. The most popular brands are M75 and M50. For example, the M75 mixture proved to be the best as a reliable masonry mortar for bricks. Whereas for a wider area of ​​​​use, as well as for plastering work, we digest M50.

With regard to plaster mixtures, they are conditionally divided into:

1. basic - for rough leveling of the surfaces of walls and ceilings;

2. decorative - having decorative elements in the structure or due to prolonged drying, they are easily subjected to textured processing with subsequent painting;

3. special - are of a technical nature to improve the moisture-proof properties, sound insulation and insulation.

Manufacturers and prices

Another plus is the affordable cost of the material compared to the cement-sand mortar. Its low consumption (1 m2 layer in 1 mm - 1.5 kg of the mixture) determines the economic benefits. Lime mortar can be bought from manufacturers ready-made or in the form of a dry mix packaged in bags. Construction manipulations indoors are allowed to be carried out with powder compositions, while for outdoor work, especially under conditions of high humidity, it is recommended to entrust the preparation to professionals.

The cost depends on the quality of the raw materials used, the ratio of ingredients. An approximate price range is shown in the table below.

The line of manufacturers of ready-made dry mixes is quite extensive. All of them have their own characteristics, features in the composition and scope. Below are the most accessible and common.

Do-it-yourself solution preparation

In addition to ready-made production options, it is possible to make lime mortar yourself. Buy all the necessary high-quality elements and carefully observe the proportions to achieve a high-quality result while saving money. The main ingredients used are cement, sand, lime and water.

The ratio of ingredients determines the brand and specifications.

Water consumption during preparation is usually 0.8 parts per 1 hour of cement. In practice, the amount of liquid is determined visually by the consistency of the solution - normally, the mixture should look like thick sour cream.

Lime, as a building material, is used only in a quenched form, otherwise, as a result of a chemical reaction, the finished material may swell or burst completely. For preparation, you will need a separate container. The process differs depending on the rate of quenching.

1. Fast-extinguishing lime is poured into a barrel of water until completely immersed. After the appearance of soaring, more water is added and mixed. Extinguishing takes an average of 8 minutes.

2. Medium-extinguishing lime is poured into a container and filled with water in double volume. When steaming, water is also added and mixed. The process continues for approximately 25 minutes.

3. Slow-extinguishing lime is only moistened with water. The reaction is accompanied by a threefold increase in volume and an increase in temperature. Takes over 25 minutes.

The prepared material is diluted with water in a ratio of 1: 1 to the state of milk of lime. Often, for the final extinguishing, it is poured into a special pit, sprinkled with a layer of sand and earth and aged in this way for 15-20 days. The composition acquires a creamy consistency and is now called lime dough or paste.

For cement-lime plaster mortar, the most commonly used cement is:

• type I Portland cement with a minimum amount of additives and a high setting rate;
• Type II Portland cement grades M500-400 with additives up to 35%.

As practice shows, three-layer plastering is most often used at construction sites. The proportions of the solution (water-sand-lime-cement) in this case will depend on the layer of plaster.

• draft layer - spray - 2.2: 6.7: 1.5: 1;
• middle layer - soil - 2.8: 9: 2.2: 1;
• finishing layer - covering - 4:13.5:3:1.

For the preparation of masonry cement mortar, it is more expedient to use a concrete mixer, since in practice it is required more than plaster. The latter, in turn, is prepared in improvised containers using a construction mixer.

Part of the water is poured into the concrete mixer, then cement, lime and sand are alternately added in the required proportion. After thorough mixing, the mixture is closed with the remaining water.

In the case of manual preparation, there are two types of procedures:

1. The lime dough is passed through a sieve with a mesh diameter of not more than 3 mm. Then sand and cement are added in portions to it, everything is thoroughly mixed until the required fat content of the solution is obtained.

2. A dry mixture of sand and cement is prepared in the right ratio. Milk of lime is gradually poured into it, if necessary, diluted with water to achieve the required consistency.

To increase the stability of the solution to environmental factors, slow down the hardening process, the following are added to the finished mixture:

• plasticizers;
• frost-resistant additives;
• setting retarders and others.

The Portland cement used in the composition also brings a number of positive characteristics to the material:

1. in combination with the action of hydraulic additives, it provides resistance to leaching, and therefore to long-term exposure to ground and sea waters;

2. gives cement a high level of anti-corrosion protection;

3. lime mixtures with Portland cement are not prone to destruction even with a seasonal change in freezing and thawing regimes.

Cement is an artificial inorganic binder that, when water, saline aqueous solutions, and other liquids are added, forms a plastic mass, which subsequently hardens, turning into a stone-like body.

It is used for the production of concrete and mortars. Now the most popular brands are M (PC) 400 and M500.

Acquisition of high-quality binding material

1. It is better to buy in specialized hardware stores and supermarkets, and not in the market.
2. It is necessary to carefully examine the integrity of the packaging and all inscriptions. It is very important that the shelf life does not exceed six months. The fresher the better. And to avoid forgery, you need to check the quality certificate.
3. The presence of lumps is unacceptable, and the popular method of quality control is as follows: they collect cement in a handful and clench their palm into a fist. If it seeps through the fingers, then the material is good, but if it is compacted in the hand, this should not be taken.
4. It is not recommended to stock up for future use, it is advisable to use it immediately after purchase, and if a certain amount remains after the work done, then it must be stored strictly in a place protected from moisture, additionally placed in sealed plastic bags, tightly tied.

Proportions for the preparation of mortars

Many people think that the M400 or M500 brand is an indication of what proportion should be followed to prepare the mixture. This is not true. The number indicates that the cement can withstand a load of 400 or 500 kg/cm 2 respectively. How to dilute cement?

In the tables of the Instructions for the preparation and use of building mortars CH 290-74, strictly regulated proportions are indicated.

So solutions are divided into:

1. Plaster solutions: grades M10, M25, M50;
2. Masonry mortars: grades M50, M75, M100, M125, M150, M200;
3. for screed: brand M150, M200.

1. Water is mixed with a binder, cement milk is obtained, to which sand is added.
2. The second option is preferable: first you mix cement with sand, and then you add water. This guarantees the homogeneity of the resulting cement mass and the quality of construction work.

When preparing a cement-lime or cement-clay mortar, first the lime (clay) dough is diluted with water to the consistency of milk and passed through a sieve with 10x10 mm cells. Then add it to the already mixed mixture of sand with a binder.

For plastering, clean river sand is used, and quarry sand can also be used for masonry. Before use, the sand is sifted through a 10x10 mm sieve. Often in individual construction, an old armored mesh from a bed is used for these purposes.

The amount of water is already determined during the production of the mixture, judging from the consistency of the mixture.

To mix the solutions manually, use a shovel, a construction mixer. But still it is better to purchase an electric concrete mixer for large volumes of construction work. To deliver the solution, ordinary buckets, stretchers or a wheelbarrow are used. Don't forget gloves and goggles.