M200 concrete proportions: composition, ingredients and

Various construction solutions can most often be found at the construction site. For each type of work a special composition is selected, which should guarantee the desired final quality. In this article we consider the proportions of concrete grade 200 to 1 m3.

General section

Ready-to-use mortar has a moving consistency.

Its ingredients are ingredients taken in the right proportions, namely:

• cement;
• water;
• sand;
• rubble

Brand M200:

• guarantees reliability;
• quick setting;
• possesses low heat conductivity;
• retains its properties at temperatures from +5 to +350? C;
• its main superiority is the strength and safety of structures.

The composition of the mixture

In order to get the highest quality solution, you must correctly mix all the ingredients in the installation or with your own hands. Cement grades meet its quality, i.e. the higher it is, the better the finished mixture will be. Therefore, the higher its rate, the less it is needed to prepare a mortar with a volume of 1 m.³.

For the construction of the foundation will need:

• 1 share of cement;
• 4 shares of rubble;
• 0.5 share of water;
• 2 shares of sand.

The composition and ratio depends on:

• from the brand of cement and concrete;
• properties of sand and rubble, plasticizers.

The factories take into account many properties of ingredients, use different brands of concrete from 50 to 1000. These figures characterize the maximum compressive strength of 1 m³ an edge of 20 mm after 28 days. Up to 70% of the mixture hardens already in the first week.

One of the important factors is the addition of cement to the solution in an amount up to 1 kg and crushed stone up to 5 kg. But, it is not recommended to add the entire volume of liquid, since different amounts of liquid may be required in different batches. Therefore, in order to obtain the desired consistency of the mixture, it is necessary to add water in stages.

Tip: water remains an important component for the preparation of mortar. Therefore, it must be clean.

Ingredients

Important components remain water and cement, their main task is to combine all the components into one homogeneous mass.

Tip: when respecting the ratios, you must consider the moisture-absorbing properties of sand and gravel.

This can prevent the appearance of microcracks in the structure, and therefore increase its durability and reliability. One of the most important properties of rubble and sand remains the adoption of shrinkage stress, which retains the strength of the finished composition, prevents creep and deformation.

You must carefully consider the choice of brand of concrete and cement, given the fact that the latter should be necessarily higher than the first. The price of high-quality material is high, which can not be said about the filler.

It is believed that if you add more to the mixture than you need, then it will turn out stronger. It is not so, exactly like what if you put less, to save it or use the old one, which has been idle for a long time. If stored improperly, it loses its properties, it can increase water permeability, which can lead to the destruction of buildings.

Tip: do not use supplements containing calcium chloride, they are accompanied by the appearance of stains and corrosion.

Materials

To prepare the solution, crushed stone must be selected twice as strong as the brand of concrete, so that its monthly strength is lower than in a year, and the brand of crushed stone is the same throughout the entire period of operation.

Instead, you can use:

• gravel;
• limestone;
• granite;
• sand.

Cooking

In order to get a mixture of the correct structure, you must observe the ratio.

Upon receipt of a particular consistency, it is necessary to consider such parameters as:

• material strength;
• its required ductility;
• ratios;
• properties of various aggregates;
• brand of cement.

The instruction recommends that to get 1 m³ M200 concrete need to take:

• 330 kg of cement with a strength of 1300 kg / m ?;
• crushed stone of 1250 kg with a density of 1250 kg / m ?;
• sand 600 kg with a density of 1400 kg / m ?;
• water 180 l.

If it is easier for you to measure in buckets, preweigh one by one with each ingredient.

1. By production of 1 m³ dry mixes for cobblestones use the same ratios, but water must be added only to moisten the dry components of the solution.
2. For brick laying, cement and sand are used in a ratio of 1: 4, while gradually adding water to obtain a homogeneous mixture. Also, due to the likelihood of bad weather, it is advisable to use in the ratio of 1: 3.

From the brand of cement depends on the composition of concrete. For M400, the ratio will look like this: 1 part of cement, sand - 2.8 parts, and crushed stone will need 4.8 parts. With M500 - 1: 3.5: 5.6 respectively.

Conclusion

В данном материале было подробно рассказано, какие требует пропорции бетон марки 200. Такие работы одни из самых трудозатратных, но без них любое здание не сможет простоять отмеренный ему срок. Поэтому так важно правильно соблюдать соотношения и подбирать нужные материалы (см.также статью «Особенности и пропорции приготовления бетона»).

The video in this article will help you find additional information on this topic.