Features of ready-made masonry cement mortar grade 100 (m100): characteristics, composition

Ready-made masonry cement mortar grade 100 is intended primarily for filling joints in walls, including load-bearing ones, made of heavy natural stone and large bricks. It can be purchased from most concrete manufacturers or made directly on the construction site from a special factory-made dry mixture, diluted with water. Grade M100 indicates the compressive strength of the hardened mortar on the 28th day after completion of work - not less than 100 kgf/cm² (10 MPa).

Cement for preparing masonry mortar.

Component composition

Portland cement and Portland slag cement GOST 10178, pozzolanic and sulfate-resistant cements GOST 22266 of high strength grades M400 and M500 are used to prepare the masonry mixture of grade M100. Cement M100 and M200 are not used. The solution may contain fly ash, but not more than 20% by weight of the main binder.

The filler for cement masonry and installation mixtures M100 is washed sand, fraction up to 0.3 mm GOST 8736. The maximum grain size is up to 2.5 mm, if the mixture is used for rubble masonry, then up to 5 mm.

Proportions of cement and sand in masonry mortar M100, depending on the humidity of the room (the mass of binder per 1 m³ of aggregate is indicated):

• dry - 100 kg;
• wet - 125 kg;
• wet - 175 kg.

In winter, anti-frost additives must be added to ready-to-use cement-sand mixtures. To improve the characteristics of the solution during application, plasticizers can be added to the composition. If necessary, use water-repellent additives. If the mixture is used for laying facades of residential buildings, shopping and office centers, etc., then dyes can be used. A colored solution will help give the walls an original appearance.

Table of composition of masonry mortars.
All of the listed components are added to dry mixtures during the production process. Depending on the availability and type of additives, there are special formulations - winter, colored, etc.

Cement mortar M100

Mortar brand M100, produced on the basis of certified cement and washed sand, belongs to the category of masonry and leveling mixtures with excellent strength characteristics and water resistance. The material has good ductility and ease of application. Cement mortar M100 is widely in demand in the construction of residential and industrial buildings, their repair and reconstruction.

Material cost and delivery terms

The volume of one-time delivery is 4–8 m3 of cement mortar. Delivery from 1 m3 is possible, subject to payment for transportation of 4 m3 of material.

Material composition

Cement M300 or M400 is used as a binder in the solution. Washed fine sand (up to 0.3 mm) is used as a filler. The binder is warm, clean water, as well as various additives, plasticizers and fillers. To perform plastering work, a small volume of carefully crushed lime is added to grade 100 cement mortar. Ingredients are additionally added to masonry compositions to increase the waterproofing properties of the material and its hardening time.

Current standards

According to the current GOST 28013-98, when carrying out general construction and finishing work, only a factory-produced mixture can be used. Cement mortar grade 100, produced using modern equipment, is subject to regular monitoring at all stages of production. The required temperature and humidity conditions must be maintained, exact proportions are observed and the quality of the raw materials is strictly checked.

Mixture characteristics

The technical properties of M100 cement mortar, in particular its strength and plasticity, depend on the quality of the sand: structure density, roughness and grain size. The high-quality mixture supplied by BetonTransStroy has the following characteristics:

• Compressive strength grade – 100 MPa;
• use time – up to 60 minutes;
• operating temperature range – 0…+30 °С;
• thickness of one layer – 10–50 mm;
• adhesion strength coefficient – ​​from 0.5 MPa;
• aggregate size (maximum) – 0.3 mm.

Application area

Most often, M100 cement mortar is used to perform the following work:

• masonry of load-bearing and enclosing structures: walls, columns, partitions, partitions, etc.;
• screed arrangement;
• leveling various surfaces;
• arrangement of exploited and flat roofs;
• laying tiles and mosaics.

You can order high-quality certified cement mortar M100 by contacting BetonTransStroy specialists in any convenient way from those indicated on the “Contacts” page.

Technical characteristics of the M100 mixture

Properties of cement-sand masonry mixtures grade M100:

• viability in an open container - 1-2 hours;
• adhesion strength to the surface - up to 0.5 MPa;
• work temperature - +5...+25°С;
• operating temperature - -30…+40°С;
• volume of water per 1 kg of mixture - up to 0.23 l;
• masonry joint thickness - 10-15 mm;
• consumption per 1 m² with a thickness of 1 mm - up to 2 kg.

Characteristics of the hardened mortar

The main properties of M100 cement mortar on the 28th day after completion of masonry or installation work:

• average density - for light solutions up to 1500 kg/m², for heavy ones - from 1500;
• frost resistance - from F10 to F200 (from 10 to 200 freeze-thaw cycles without loss of properties);

Each manufacturer has its own exact values; the required ones are included in the construction project.

Main characteristics

• the strength grade of the dry mixture M 100 is 10 MPa;
• the volume of the dry mixture is 1.4 – 1.7 t/m;
• recommended volume of solution: 1.9 – 2.1 t/m;
• mobility of the prepared solution: Pk-2 (6-8cm);
• stratification of the prepared solution is no more than 10%;
• preservation of the working properties of the solution: up to one and a half hours;
• temperature range of use: from 5° to 30° C;
• resistance of the applied solution to temperature fluctuations for at least 50 cycles, which is especially important in the Russian climate;

Scope of application of M100 brand solution

In addition to its main purpose, cement masonry mortar M100 is suitable for use for the following purposes:

• grouting;
• installation of partitions, columns, partitions;
• pouring floor screed;
• filling joints between heavy panels, concrete blocks;
• plastering of concrete surfaces;
• installation of ordinary lintels up to 2.5 m high;
• installation of the underground part of the brick foundation;
• arrangement of flat roofs;
• laying tiles, mosaics.

If a ready-to-use mixture is needed for plastering work, then lime can be added to its composition at the buyer’s request.

Requirements according to GOST 28013-98

This state standard provides for the separation of masonry mortars according to the following criteria:

• type of binding ingredient;
• composition density.

The last parameter divides all solutions into fatty and lean. In the first case, quartz sand must be used in the mixture, the requirements for which are specified in GOST 8736-93; in the second, the use of a porous component is provided.

The fatty composition is durable and contains a large proportion of GOST 30515 cement. But it has a disadvantage - it hardens quickly, so it must be used quickly, and over time, due to its strong structure, it can crack.

The skinny variety is not as durable as its counterpart because it contains more sand than cement. It is plastic and easily fills microcracks, and hardens slowly.

You may also be interested in information about the specific gravity of cement m500.

Also, GOST 28013 specifies the lower limit for cement consumption, which is 100 kg per 1 m 3. According to this standard, a high-quality finished solution must have the following properties:

• waterproof so that the structure does not absorb moisture from the outside;
• adhesion , which provides reliable adhesion and high resistance to mobility of the materials being bonded;
• frost resistance . The solution must withstand from 50 to 1000 thawing and freezing. On the packaging of the mixture this indicator will be indicated with the letter F;
• strength . Its indicator is calculated in kgf/cm². In the M-100 cement grade, the letter indicates strength and the number indicates its value;
• interaction with other building materials . The negative influence of the solution is excluded;
• water retention and delamination . Their ratio in a fresh solution is 90 to 10;
• mobility - the ability of the cement composition to spread over the surface being treated and fill all the unevenness on it. It can be determined by a special metal projectile made in the form of a cone. It is immersed in the prepared solution, and based on the excess mixture remaining on it, a conclusion is drawn about its fluidity;
• plastic. The mixtures contain special plasticizers that replace water in the solution and enrich it with air bubbles. Due to them, the setting time of the composition increases, the appearance of mold and fungi, as well as shrinkage are eliminated.

Requirements for the solution

GOST 28013-98 specifies the required ratios of components and properties of construction mortar mixtures, including masonry cement grade M100:

GOST 28013-98.

• mobility - from Pk1 to Pk4;
• water-holding capacity - at least 90%, homogeneity depends on this parameter;
• stratification in freshly prepared mixtures - up to 10%;
• temperature - -10...+25°С depending on the air temperature at the construction site, wind speed and type of masonry (brick or stone); when using a mixture for installation work, the temperature should be +20...+35°С;
• humidity (only for dry mixtures) - up to 0.1% by weight.

The solution, ready for use, must be plastic.

Mobility

Mobility or workability is the ability of a building mixture to spread under its own weight. The required value for cement mortar grade M100 depends on the type of masonry:

• rubble vibrated - Pk1;
• rubble non-vibrated - Pk2;
• from hollow brick or warm ceramics - Pk3;
• from solid brick or ceramic stone - Pk4;
• installation of walls made of concrete blocks, panels - Pk2.

Setting time of concrete M100

The setting of a concrete mixture is one of the most important parameters that must be taken into account when working with concrete. The speed of setting determines the plan of construction work and the cost of heating concrete in winter. Today, the setting speed can be predicted with an accuracy of 95% by choosing the optimal temperature regime when performing concrete work and introducing special additives into the mixture.

Transportation and storage

Dry mixtures for preparing masonry mortars M100 are transported in plastic bags or paper bags. A quality document is required. The shelf life of the mixture is 6 months. After its expiration, the grade of material in terms of compressive strength decreases. This composition is suitable for use, but only when installing structures with low load-bearing capacity requirements. The finished solution is delivered to the buyer in a car equipped with a concrete mixer, or less often in bunkers. It is used immediately.

Storing cement in bags.

Composition and proportions

Concrete grade M100 is called “skinny”. Causes:

• laying is carried out in a thin layer to pre-level the area;
• the ratio of cement in the solution is minimal, it is only enough to bind aggregate particles.

Brand M100 contains the following components:

• binder - cement;
• coarse filler - crushed stone (gravel, granite, limestone);
• fine filler - river or quarry sand;
• water without impurities.

When mixing, no serious requirements are placed on this brand of concrete, so the quality of the dry components can be any.

To obtain concrete grade M100, you need to adhere to the following formula:

• 1 part cement;
• 4.6 parts sand;
• 7 parts crushed stone.

Chemical additives are rarely added to the solution due to the limited scope, but they can increase the quality of the solution.

Some manufacturers and material costs

Dry masonry, masonry and universal cement mixtures of the M100 brand are sold in Russia by many manufacturers of building materials, for example Resolit, SiLix, ALMI. In May 2022, the price for a bag weighing 25 kg is about 100 rubles.

There are compounds on sale with a compressive strength of 10 MPa, but not marked for this parameter (price per 25 kg):

• Found Brickform MS 11 white and color - 310 rubles;
• Found Brickform MS 11/1 color with high water absorption - 360 rubles;
• Stroybrig Colored Kipirok - 215 RUR. and etc.

Ready-to-use cement masonry mortar M100 can be purchased from almost any company involved in the production of concrete. Price per 1 m³ - from 2500 rubles. The cost of materials is indicated for approximate calculation.

Areas and features of application

Due to the inability to bear heavy loads, it has a limited scope of application:

• leveling the bottom of the pit in private construction of buildings no more than two floors high;
• concrete layer for roads where there is no heavy traffic;
• fixing curbs on pedestrian paths;
• minor repairs to support posts of fences and fences.

Concrete grade M100, with high-quality pouring and the use of additional chemical additives, is quite durable and strong. This building material does not require high-quality components. That is why it is so popular when carrying out preparatory work on a construction site.

Description and Application

Concrete M100 has a low price with a relatively low strength indicator, so it can only be used where there are no large mechanical loads. It corresponds to concrete strength class B7.5 and is used in the production of reinforced concrete structures that will not be subjected to high pressure and dynamic influences. This material is sufficiently waterproof to create a reliable barrier to the laitance of higher grade concretes poured onto a bed of M100. It has a relatively low density, which reduces the pressure on the soil surface.

When selecting a building mixture, attention is paid to three main parameters: strength, moisture resistance, frost resistance. It is they who determine the scope of application of B7.5 or M100 concrete, which is limited due to reduced performance due to the small amount of cement. This solution is used for the following work:

• Installation of concrete pads under bases and foundations on compacted soil or sand. Their purpose is to prevent the binder component from sinking into the ground. In addition, such layers create an additional waterproofing barrier, protecting structures and reinforcement from corrosion.
• During road construction, this material is used as a substrate for the base of the road surface, when constructing pedestrian zones and areas for vehicles that are subject to high loads.
• For casting curbs, small unloaded structures, arranging infrastructure elements, children's and sports grounds.
• For pouring subfloors in utility rooms during private construction, for example, in a barn, workshop or cellar, laid on the ground.

Features of purchasing DSP in bulk

• Popular pages:
• DSP 1:1 (M400)
• TsPS 1:10 (M50)
• TsPS 1:20 (M25)
• TsPS 1:4 (M200)
• TsPS 1:15 (M25)
• DSP in bags
• Ready-mixed concrete M350

It is simply impossible to do without a high-quality cement-sand mixture at a construction site. DSP is used in various types of work, from plastering to masonry. And finding a reliable supplier of building materials whose product quality is not in doubt and whose price is not inflated is not so easy. So what do you need to know in order to order DSP in bulk and not receive low-quality material?

Production of ready-mixed concrete (RBG) in a factory

A concrete plant in Moscow that sells concrete mortar prepares it according to state standard 7473-94. Special additives change the characteristics of the liquid solution and the frozen monolithic structure:

1. Plasticity changes with lime - 0.1-0.8 parts.
2. Frost resistance is increased by adding additives for winter work.
3. Hardening and evaporation of water can be slowed down with special impurities, which are used when it is necessary to transport the solution over a long distance.

Cement sand mortar m100 price