Technical characteristics of sand concrete m300 and its properties. What is the best sand concrete

Sand concrete has replenished the building materials market relatively recently, about 10-15 years ago. Today, without this dry mixture, it is difficult to imagine any construction site. The material is involved at all stages, from the construction of foundations to interior finishing work.

According to the classification of the state standard, sand concrete belongs to fine-grained, and by designation - to structural concrete and has the characteristics indicated in the tabular data.

Dry building mix perfectly accumulates the generated heat, therefore it is successfully used to create a layer covering the heating element in the "warm floor" system

The quality of the dry building mixture is regulated by GOST 7473-94, in accordance with this, the product is marked. It allows you to find out exactly what fraction of sand was used as a filler, the rate of solidification and other parameters.

What is the material used for?

Building codes and regulations define the following scope:

• sealing cracks and holes in floors and walls;
• the use of sand concrete for screeds, including slope-forming ones, is encouraged;
• masonry implementation;
• pouring concrete, sand-cement bases;
• leveling and pouring floors, including heated ones;
• arrangement of foundations and foundations;
• monolithic various concrete structures;
• creation of stair structures;
• building elements adjoining territory, footpaths, etc.

Application in construction and repair

All mixtures are divided into universal, specialized, assembly and masonry and plaster.

The material has a certain brand strength, which should be taken into account when conducting work:

• sand concrete M100 - most often the mixture is used for the implementation of plaster work. The material does not have good strength (100 kg / cm²) and water resistance. The composition includes river sand fraction 0.8-1.2 mm;
• sand concrete M150 - applicable for the repair of facades and plastering. Often used for pouring screed and brickwork. The strength of the finished coating is 150 kg/cm². The composition includes river and quartz sand 0.8-2.0 mm. The material is light and reduces costs. It can be delivered to a height of up to 52 m using a concrete pump;
• sand concrete M200 - can be used for arranging underfloor heating screeds and other internal works. The composition includes fine-grained river and quartz sand. The finished coating is resistant to deformation and can withstand loads up to 200 kg / cm²;
• sand concrete M250 - the material is characterized by durability and high strength (250 kg / cm²) and is used in the construction of various technical buildings;
• sand concrete M300 - the mixture is used for the construction of various high-strength concrete structures, the manufacture of expanded clay, pouring the floor, etc. This is the most versatile brand. Such partitions and walls are easily plastered and tiled. In addition, the practice of using such sand concrete in monolithic construction has fully justified itself.
• sand concrete M500 - rarely used in private housing construction, it is applicable when working on civil and industrial construction sites.

The use of heavy concrete in private construction may be unacceptable if the weight of finished structures is limited. It is in this case that it is advisable to pay attention to sand concrete

Regardless of the brand, be it M150 or M300 sand concrete, the instructions for use should be the main guide for the master for preparing the working solution.

Sand concrete due to its homogeneous and dense consistency most often does not require additional reinforcement, the shrinkage of the finished mixture is close to "0".

What is luxury concrete?

Materials that are produced under this marking have a range of distinctive characteristics:

• increased concentration of Portland cement;
• increased elasticity (mobility);
• strength gain is realized twice as fast.

Which is better?

The main components of any mixture are Portland cement, sand and special plasticizers. The strength grade of sand concrete depends on the grade of Portland cement, and the shrinkage parameters depend on the size of the sand fraction. The composition of the M300 grade is considered to be a universal material, however, in practice it is permissible to use low-grade solutions, which depends on the tasks assigned to the builder.

The best mixture is the one purchased from good manufacturer or competently prepared with your own hands and used strictly for its intended purpose. The choice of material should be implemented based on the purpose and operating conditions of the poured coating.

A mixture that is suitable for use has the following characteristics: it is a dense, viscous, homogeneous and plastic mass, which should be used within two to three hours. Strength, optimal for other work, is achieved on the seventh day, the final one - on the 28th day.

foundation application

If conducted low-rise construction or it is impossible to make/order heavy concrete, sand concrete can be a good alternative solution. For the construction of foundations, a mixture with increased characteristics of strength, density and frost resistance is used. For the implementation of the work, it is advisable to use material not lower than M300.

The ready-made solution is suitable for arranging:

• monolithic strip foundations;
• prefabricated and block structures;
• prefabricated-monolithic (mixed) bases.

If Portland cement is not freely available, you can purchase simple cement, but then its consumption will increase by one and a half times, which will affect the rise in the cost of work

The working mixture can be used both as a base material and as a binder (filling gaps, making dressing elements, etc.). Practical experience shows that there is a slight deterioration in the bearing capacity of the foundation. If the casting is compacted, the appearance of defects is minimized.

When arranging the foundations, it is better to know that about 750 kg of dry mix will be required to fill 1 m³ of mortar. Sand concrete packaging is bags from 20 to 100 kg, which will simplify the purchase of the material.

How to DIY

Each builder can prepare a cement mixture with my own hands for which you will need the following materials:

• portland cement M500 (the output will be sand concrete M300);
• sand;
• water.

The proportions for preparing the mixture are as follows: 1 bucket of sand requires 3.5 kg of cement and 2.3 liters of water (based on a water-cement ratio of 0.5).

Sand concrete mix - material consumption

The consumption of the mixture depends on several initial data:

• the required thickness of the finished layer;
• base parameters;
• quality characteristics of the finish coating that should be obtained.

For example, when using sand concrete for a screed with a thickness of 1 cm and an area of ​​1 m², at least 20.00 kg of dry sand concrete M300 will be required.

When preparing the mixture in a concrete mixer, all constituent components must be dry, then high-quality sand concrete will be obtained, how to breed the material is discussed below.

Sequencing:

• sand is loaded first;
• then cement;
• when a large volume is required, it is advisable to first mix the dry components in parts and unload them into one container, then pour the entire volume of water into the concrete mixer and gradually load all cement-sand mixture. The finished material will be homogeneous, meeting the requirements of M300 strength;
• the mixture is kneaded for several minutes and unloaded;
• water is poured into the drum for cleaning.

Cost, packaging and storage conditions

An approximate idea of ​​​​the cost of sand concrete can be obtained by comparing materials of the M300 grade from various manufacturers. They are very popular:

• "Stone Flower" - price 40 kg / 127 r;
• "Rusean" - 40 kg / 248 r;
• Deluxe - 50 kg / 271 r;
• sand concrete Axton 30 kg / 129 r.

Indoors, containers with sand concrete should be stored on pallets.

The sale of the material is carried out in the factory container (the standard is sand concrete in four-layer paper bags). Before buying, it is recommended to make sure that the product has all the relevant documents.

For sand concrete, the certificate of conformity confirms that it meets the requirements of GOST (“Concrete mixes. Specifications”). Transportation and storage of bags should be carried out under conditions that ensure the integrity of the package and protection from moisture penetration.

Dry mix sand concrete is a rational solution to many construction tasks, due to the high versatility of the mixture.

About sand concrete and its use for floor screed is described in the video:

sand concrete 300 — construction material which has both liquid and dry forms. In liquid form, it is delivered to construction sites in the form of a ready-made solution.

One of the most produced, sold and popular strength grades is M300.

In finished form, ready-mixed concrete M300 (mortar) has an additional classification of BST B 22.5. In some cases, it has an additional designation - fine-grained concrete.

In the form of a dry building mix, it has additional names, depending on the fractions of sand, cement brand and modified additives. Coarse sand concrete M300 presented on this page, has a simple composition, corresponds to , Produced and supplied to construction sites and trade organizations in 40 kg bags.

• Consumption: 2 tons of mixture per cubic meter of finished solution (coefficient = 2)
• Calculation of the weight of sand concrete for floor screed: coefficient * screed height * room area.

Application area:

Sand concrete is divided into two-component and multi-component.
Two-component, as a rule, has great application possibilities. Since basically it goes to the screed indoors and does not require additional plasticizers and modified additives. And if necessary, they can be purchased separately in the required quantities. And with certain skills and instructions, prepare the recipe on the spot.

unlike other materials with similar properties, it has a number of advantages, including: strength, wear resistance, mobility, ease of preparation, ease of use, etc. These advantages allow it to be used in many areas of construction.

It has been successfully used for the following jobs:

• construction of high-strength foundations;
• creation of high-quality self-leveling floors;
• pouring concrete screeds, which, thanks to the use of fine-grained sand concrete M 300, are perfectly even, extremely durable and resistant to loads;
• pouring terraces, paths, other elements of suburban construction.

The ability to regulate the properties of the material by adding more or less sand or various plasticizers to it allows it to be used to strengthen flights of stairs, reinforced concrete structures.

Specifications:

How to buy sand concrete m300.

If you need a batch of less than five tons, then the best option would be to purchase products at the nearest hardware store, since we do not provide delivery of batches of less than five tons.
Material delivered in this case by light-duty machines will cost less than from the factory.
If a batch of more than five tons is needed, it will be profitable to buy sand concrete from the factory by ordering products either through the website or by calling, since the actual cost of transportation is distributed by the number of bags.

Advantages

It is a relatively inexpensive material that allows you to perform high-quality whole line required in the construction work. To prepare a solution from a mixture purchased from us, you absolutely do not need to have any special knowledge and skills. Simply mix it with water, bring the solution to the desired consistency and wait a few minutes. After that, the solution will be completely ready for use.

The material completely hardens in just 48 hours. At the same time, it acquires maximum strength on the 28th day, which allows it to hold any building structures. It can be used in the temperature range from 5 to 30 degrees above zero - regardless of the temperature, it does not lose its quality characteristics.

The use of sand concrete m300 in practice. Video from builders and finishers.

1. 1. Floor screed
   
2. 2. Filling the screed
   
3. 3. How to make a floor screed with your own hands
   

Portland cement PC400 D0, PC 500 D20 GOST 10178-85; GOST 30515-97. .

Dry sand, fractionated TU 5711-002-05071329-2003 combined composition of fractions: 0.1 mm - 8 mm

The dry mix meets the requirements.

Information about delivery:

Bags with dry mix must be stored and transported under conditions that ensure the safety of the packaging and protection from moisture.

Shelf life up to 6 months.

Production - is certified.
Container - a four-layer paper bag.
Weight - 40kg.
Minimum wholesale lot 5 tons (125 bags)
Products are delivered mainly on pallets.
Each pallet contains 35 bags (1.4 tons)

When unloading products, pallets are either returned or paid by the buyer.

Questions and answers.

Question:
Tell me, do you no longer sell Peskobeton 50 kg?

Vladimir. 10/18/2016

Answer:

Good afternoon. For a long time, such a trend has developed that many manufacturers of dry building mixes have switched to 40 kg bags.
The Mansurov Quarry Administration was no exception.
A bag of 50 kg is much larger in weight and volume, often builders and finishers have to carry bags on themselves, and often a difference of 10 kg is enough for a person to get a serious back injury.
As soon as 40 kg bags appeared, the demand for 50 kg bags began to decline, and the demand for products in 40 kg bags began to increase.
Demand creates supply.

Sales department.10/18/2016

Question:

Hello. I can’t understand, floor screed is sand concrete?
Or are they different products?

Sergey 10/26/2016

Answer:

Sand concrete is a dry mix with the simplest composition for floor screed.
It usually consists of two components cement and sand.
It is usually used if the floor screed is higher than 30 mm.
Sometimes, of course, they are used at a lower height, but the level of professionalism of workers performing floor screed work is very important here.
But there are other types of dry building mixes with different chemical. composition and other names. To get to the point, it is better for you to consult before buying from specialists who will perform work at the facility.

Sales Department.26.10.2016

Question:

And why is your sand concrete better than others, the price seems to be not high,
And how is the quality?

Viktor Ivanovich 01.11.2016

Answer:

Praise our products and say that they are better than all the others, it will be a little incorrect in relation to other manufacturers. Let's just say - the quality corresponds to the price. The main thing is that the manufacturer does not compensate for the lack of coarse sand by increasing the number of various additives, which do not always play into the hands of strength and hardening speed.

Sales department.01.11.2016

Question:

Hello. I watched the video, you even deliver MKU sand concrete to Kursk.
Do you transport to the city of Yaroslavl? I ask both as a potential buyer and
as the owner of a hardware store.
Alla Valentinovna 11/14/2016

Answer:

Hello.
We do not carry to the city of Yaroslavl. No orders have been received.
As a rule, if the distance from the production is more than 200 km, buyers try to send their car, which goes back empty, to pick up goods from the factory along the way. Then it is beneficial for the buyer.
In the case of a direct flight, it will be very expensive.

Sales department.11/14/2016

Question:

I also read the page. I was interested in the consumption of sand concrete.
I don't fully understand how to calculate required amount dry mixture in a particular case. My apartment area is 54 sq.m., and the height of the screed is 5cm.

Pavel 11/29/2016

Answer:

Hello. Pavel, let's solve your problem.
First, quickly in numbers:
2 tons X 0.05 m. X 54 sq.m = 5.4 tons.
Now a comment on the solution.
The consumption of the dry mixture, for the preparation of a solution cube
2 tons. According to the documentation, you can find other numbers, but the figure is confirmed by practice.
0.05 m. - screed height in meters.
54 sq.m - the unit of measurement does not change.

We hope that your example will help other people in their calculations.

Sales department.29.11.2016

Question:

With the past holidays.
I have a question: I want to order products not only with delivery, but also with manual unloading. Can you arrange such a service?

Vasily 11.01.2017

Answer:

Hello. Vasily, we also congratulate you on all the past holidays.
We can bring you sand concrete on a manipulator and the question of manual unloading will disappear. If for some reason you need manual unloading, then we cannot provide such a service.

Sales department.11.01.2017

Question:
I have my own vehicle, can I come and pick up the goods for pickup?

Artur 13.02.2017

Answer:

Hello. Arthur, the prices on the site are for self-delivery.
Having paid for the goods in advance, you can coordinate the export of products with any of the managers, come to the factory and pick up the paid products for self-delivery.
What I would like to pay special attention to:
at the plant, on-board vehicles are loaded with the possibility of side and rear loading. Dump trucks do not load.

Sales department.13.02.2017

Question:

Hello, you indicated that you stack sand concrete in 35 bags per pallet. Is it possible to put on a row more so that everything fits into my car?

Maxim 06/01/2017

Answer:

Hello. Maxim, perhaps, but consider the following factors:
a) you should not have an overload
b) such an operation is discussed before your visit to the loading
c) this service is paid separately.

Sales Department.01.06.2017

Question:

Tell me, is it really possible to make a foundation out of your sand concrete?
I need to pour strip foundation. I think it will take about 15 cubes.

Artem 01.08.2017

Answer:

Good afternoon.
Artem, you can pour it, but I think it’s more correct, it’s easier to order sand concrete faster at the nearest high-quality concrete plant in ready-made liquid form. Keyword- "quality". If a dubious plant is located closer to you and the cost of production is lower than at a similar large plant with the "Name", but located farther from you - do not save, "the miser pays twice."
Purchase concrete from a trusted manufacturer.

The foundation is the basis of your construction.

If, for some reason, the supply of the solution is not possible at the facility and you need to prepare it on site, then we will be happy to help you and bring our products.

It should be noted that m300 sand concrete is a rather plastic material with a short hardening time. Its main characteristics include high density, frost resistance, water resistance, resistance to corrosion, wear and deformation.

The technology for making a solution from this material is not difficult. The dry mixture must be diluted to a homogeneous mass with thorough stirring and the finished solution should be kept for five minutes. After this time, the solution is ready for use. Filling the floor with a solution, the mixture is carefully compacted. The floor gains strength after 28 hours, and after forty-eight hours it can already be used.

Due to the fact that sand concrete quickly hardens, it is often used in construction, as well as in emergency situations that require a quick response.

For the construction of wear-resistant high-strength structures or concrete products, sand concrete m300 is the best option. This material is perfect for sealing joints, it is used to level horizontal concrete or cement-sand bases. In addition, it is used to eliminate defects in pouring concrete structures, high-strength screed or foundations, and various installation work.

Sand concrete m300 is also used for laying leveling layers associated with the base of the floor for rooms with low mechanical loads and with normal humidity, that is, it is used for residential, household, public, administrative and other premises. It is recommended to make a leveling layer of the solution from 10 to 50 mm, or with a layer filling of up to 100 mm, provided that a reinforcing mesh is laid.

Dry mix sand concrete m300 is designed for leveling floors and any other horizontal bases. With its help, it is easy and convenient to seal the seams between various concrete elements. Peskobeton m-300 easily eliminates defects in pouring concrete structures. When diluting the mixture, an excess amount of water in the solution should not be allowed, otherwise the strength may decrease and cracks may form.

Foundation preparation

Sand concrete is applied on a dry, solid base, which is free from dust, lubricating oils, grease and paintwork. Remove fragile, crumbling surfaces. If the surface is highly absorbent, then it is moistened before applying the solution or primed.

Preparation of a solution of sand concrete M300

Sand concrete m300 is diluted with clean water. The dry mixture is gradually added to the water, thoroughly mixing it with a drill with a nozzle or a low-speed mixer until a homogeneous mass is formed. Keep the solution for 5 minutes and mix again without adding water. The finished mixture should be used up in 45 minutes. Re-mixing is acceptable when thickening.

The mixture in the form of a solution is poured onto the base and distributed over the entire area using a rail, trowel, spatula or other devices. To prevent rapid evaporation of moisture, the structure must be covered with a tarpaulin or film for 3 days. Avoid drafts.

After work or during work breaks for more than 15 minutes - tools and equipment should be washed with water. If the solution hardens on them, it can only be removed mechanically, and this can ruin the tool.

It is required to perform work in dry conditions, with a relative humidity of not more than 80%, while the air temperature should be in the range from +5 to +30 ° C.

Sand concrete m300 should be handled very carefully, avoiding contact with the skin, and even more so with the eyes, because it contains cement and, when combined with water, gives an alkaline reaction. It is best to use auxiliary tools and work with gloves.

In the process of construction work, the use of special dry mixes, including sand concrete, is almost always required. In modern conditions, a large number of similar products can be found on the market, differing in the quality of the raw materials used in the manufacture, composition, etc. Meanwhile, their basis is universal - it is cement, sand and various mineral additives. On the official website of the company "Positive-Project" you can find and order almost any type of building mixtures at an affordable cost. Having decided to buy sand concrete or other mixture from us, you will receive a quality product for a reasonable price.

Dry mixes - application

In accordance with the tasks that need to be performed in the process of construction work, choose different kinds dry mixes. Despite the similar composition, they still have differences in characteristics and must be used for a special purpose. For example, a feature of sand concrete is the presence of sand of different fractions in the composition. It gives the mixture a special strength. Compositions for plaster, in turn, must be frost-resistant and not crack. On sale you can also find universal mixtures with average characteristics.

Features of dry mixes and sand concrete

• Decent performance. Sand concrete and dry mixes have high strength, they are reliable and durable.
• Environmental friendliness. Dry mixes and sand concrete are made from natural raw materials, they are completely safe for humans and the environment.
• Ease of use. After dilution, the mixture can be used within 4-5 hours.

To purchase sand concrete with delivery in the Pozitiv-Proekt online store, use the convenient order creation form on the website. If during the purchase process you have questions about the characteristics of sand concrete, the conditions of purchase, etc., you can ask our qualified consultants by calling the contact number.

Peskobeton M 300 is intended for the construction of high-strength concrete structures, screeds, foundations. For the construction of structures and buildings, according to technology monolithic construction Most often, sand concrete M 300 is used. It is based on concrete of the same marking, which is intended for high-load structures. The higher the brand of concrete, the higher its strength.

Used sand concrete brand M 300 for:

• Slab foundations;
• Pool bowls;
• columns;
• erection of walls;
• bearing layer of floors, etc.

For example, for wear-resistant floors, an M300 sand concrete anchor is ideal, which is enough to be diluted with water in the right proportion. Also, sand concrete M300 stone flower, as well as sand concrete skating rink, are suitable for the floor.

Instructions for use

Preparing the solution is quite simple. To do this, pour the finished mixture into a concrete mixer or into a container, then add water and mix until a homogeneous consistency is obtained. Water consumption according to the norm is 1.6-2.0 liters per 10 kilograms of the mixture. To obtain a screed or foundation with a volume of 1 m3, approximately 1.5-1.6 tons of dry mix will be required.

Technical characteristics of sand concrete M300

Sand concrete M 300 has the following technical characteristics:

• Color - gray;
• Sand fraction - no more than 2.5 mm;
• Grade strength - 300 kg / cm2;
• Compressive strength - 30 MPa;
• Bending strength - 2.8 MPa;
• Frost resistance grade - F50;
• The life time of the solution in the container is 60 minutes;
• Minimum layer thickness - 10 mm;
• The maximum layer thickness is not limited;
• Average consumption - per 1m2 with a thickness of 10 mm - 22kg;
• Shelf life in unopened packaging is 6 months.

The cost of sand concrete M300

You can buy sand concrete M 300 today at any building supply store. Speaking about the cost, we note that it depends on which manufacturer you choose, as well as on the volume of packaging. For example, sand concrete M 300 40 kg price - 100 - 130 rubles. The cost of packages of other capacity is almost the same.