Production, types and shelf life of cement

Date:

2018-03-27 16:45:19

Views:

464

Rating:

1Like 0Dislike

Share:

Table of contents:

Cement is one of the basic building materials. Without it can not do any one building. He is needed as to strengthen the Foundation, and for finishing work. This material is essential today, it is unparalleled. Huge selection of manufacturers and brands of cement usually difficult to choose. So you need to understand all the intricacies and tricks, not to miscalculate and get a great result. Optionally, you can buy cement in bags or bulk.

Cement Manufacturing

For several centuries the technology of production of this material has not changed. Only have been improved the technology and reduced costs of production. Modern equipment allows to obtain quality product with high quality indicators.

shelf life of cement

Cement Manufacturing is normally carried out according to the following scheme:

  • Limestone, which are the main component of the mixture, after extraction they are cracked into small pieces, not more than 10 cm Such a mass called sludge. Then she will be repeatedly crushed to desired consistency.
  • Followed by a drying process or moisture. It all depends on which method is used in the production.
  • Next, the resulting mass is fired in a kiln at very high temperatures until all the components begin to melt. During this step produces the cement clinker in the form of small lumps.
  • Then carefully grind it to a powder.
  • The Next stage is characterized by the addition of gypsum. It is necessary only 5%. This will increase the stickiness of the cement. To improve the material characteristics are introduced in the composition of different minerals and components.

Main features and properties

All the known wear-resistant quality of the part, but nobody thinks about its other benefits. High-quality cement, the characteristics of which are the highest, of course, will vary in price and labeling. But, paying attention to other indicators, you can choose high-tech product which perfectly cope with their tasks and will meet your expectations.

Recommended

The most effective methods of seed germination

The most effective methods of seed germination

Despite the fact that the method of seedling in vegetable production is a very time consuming process, it is used by most gardeners. Planting seeds in open ground is an easy and convenient method, but it is effective only in certain climatic zones. I...

Retro-reflective paint. The scope of

Retro-reflective paint. The scope of

When the vehicle began to fill the road, their popularity began to gain reflective paint. Thanks to this paint, as drivers and pedestrians becomes much easier to avoid accidents in the dark. Purpose paint Reflective paint – paint material, whic...

How to make icon with your own hands - options izgotovleniya (simple and complex)

How to make icon with your own hands - options izgotovleniya (simple and complex)

In Soviet times, many collecting badges, emblems, pennants. To get them was not easy. And today, thanks to technology, you can make them yourself. Knowing how to make icon with your own hands, and you can make original gifts to your friends, and make...

shelf life of cement

One of the most important characteristics is resistance to corrosion. Many have faced the problem of violation of the integrity of the cement coating due to the influence of aggressive environment or excessive exposure to normal water. To prolong the service life of the cement and to ensure its safety, you need to pay attention to the composition. In many cases, to increase the strength of the mixture help special polymer additives.

In the manufacture of the solution pay special attention to the amount of water added to the dry mixture. Micro-particles of cement have a three times higher density and can absorb different amounts of liquid. If you do not guess the calculations of these particles will settle, while their other half, on the contrary, after a while will rise to the surface. As a result, lack of strength and destructiveness.

The Fineness of cement affects its quality and, therefore, the cost of the product. The smaller the particles, the faster they will harden, and the higher their lifetime. But not always a small quantity of the microparticles gives a positive result. Try to choose an optimal ratio of fine and coarse grinding. This combination will ensure reliability of the material in the future.

cement characteristics

It is Also important to take into account the strength and temperature stability. You can't underestimate any of the characteristics listed above. They are all important and are of paramount importance. For optimum effect, the manufacturers try to combine the best in one product. But there are those that by reducing some features significantly enhance the other. Here everyone chooses his own version, in accordance with the tasks and expectations.

Storage Conditions cement

In order For the material has not lost its qualities, it is necessary to observe the conditions of storage and use, as required by the manufacturer. Only this will ensure the suitability of the product for so long (or even longer), as promised by the manufacturer.

Cement Warehouse should be dry. This is perhaps the most important requirement of the storage material. This is due, primarily, to the property of cement to quickly absorb moisture (even from air). For these purposes you need a room with good ventilation. Cement in bags which are being sent to storage must be checked for integrity of package.

Shelf Life of cement

If the result is the average value, the ratio usually ranges from 2 months. The shelf life of the cement depends on many factors and may vary. For high-speed types the figure is even lower - about 1.5 months. It is therefore very important to pay attention to the production date and the shelf life of the cement.

cement bags

The Impact of extraneous factors

The quality of cement can influence the method of its storage, transportation and marking of product itself. Careless handling of containers may occur in a coma, and the dry mix will absorb moisture from the external environment. This will not only reduce the shelf life of the cement, but also deprived of their fundamentalproperties. Therefore, storage conditions must be observed, and the mixture packaged in special sealed bags. Under these conditions the shelf life of the cement can range from 1 to 2 years.

Types of mixtures

There are several types of cement, each with different composition and raw materials. The most common of them:

  • Lime.
  • Marl.
  • Clay.

These types have the greatest resistance to water and temperature extremes:

  • Portland.
  • Seaporter.

warehouse cement

This type of cement is characterized by its hardness and resistance to corrosion.

  • Hydraulic. Quickly absorbs water and hardens quickly.
  • Cement. Characterized by high strength and is often used in the construction of weirs, dams and other water structures.
  • Decorative. Has a neutral white color and is used for finishing work.
  • Sulfate. Can withstand very low temperatures.


Article in other languages:

BE: https://tostpost.com/be/hatn-tul-nasc/14513-vytvorchasc-v-dy-term-n-prydatnasc-cementu.html

DE: https://tostpost.com/de/gem-tlichkeit/14516-herstellung-arten-und-haltbarkeit-von-zement.html

ES: https://tostpost.com/es/la-comodidad-del-hogar/14523-la-producci-n-el-tipo-y-la-fecha-de-caducidad-de-cemento.html

KK: https://tostpost.com/kk/domashniy-uyut/14516-nd-r-s-t-rler-zh-ne-zharamdyly-merz-m-cement.html

PL: https://tostpost.com/pl/komfort-domu/14511-produkcja-rodzaje-i-termin-trwa-o-ci-cementu.html

PT: https://tostpost.com/pt/o-aconchego-do-lar/14504-a-produ-o-tipo-e-prazo-de-validade-de-cimento.html

TR: https://tostpost.com/tr/domashniy-uyut/14519-retim-e-it-ve-raf-mr-imento.html

UK: https://tostpost.com/uk/domashn-y-zatishok/14515-virobnictvo-vidi-ta-term-n-pridatnost-cementu.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

Comments (0)

This article has no comment, be the first!

Add comment

Related News

Optic coupler for fiber optic cables

Optic coupler for fiber optic cables

currently, fiber-optic communication lines has received the widest distribution, but they can't be carried out without such details as the optical coupler. It is intended for the connection of the segments of the cable. She needs ...

What color are the roses: types and shades

What color are the roses: types and shades

When a man carrying a bouquet of roses, involuntarily, envious of the one whom they are intended. These flowers are majestic, strong and gentle at the same time. They are great in a bouquet, in the garden area, and on the city flo...

Stand for shoes narrow: practical ideas for your home

Stand for shoes narrow: practical ideas for your home

to make your house look beautiful and comfortable, you need to select the furniture. The cupboard for shoes is not the most important piece of furniture, and usually give her much thought at the last minute. Homeowners are more in...

Projects of houses with basement. Features of plan recommendations

Projects of houses with basement. Features of plan recommendations

Projects of houses with basement very popular and loved by our compatriots. In dense urban areas reducing the area of the house and greatly increase the useful.In one-story buildings, the basement can serve as food storage or ware...

Welding of polypropylene pipes yourself

Welding of polypropylene pipes yourself

Many houses are very old, you can't be surprised that the pipes flowing rusty water, or its pressure became small. This means that the building 25-40 years were not repaired. In this case, polypropylene pipe will be the best optio...

Antifreeze additive in the cement slurry: consumption and method of use

Antifreeze additive in the cement slurry: consumption and method of use

Low temperatures contribute to the not so quick hardening of the concrete. Water under these conditions, freezing and hydration of the binder is suspended.the NeedFor concrete such processes are undesirable because they adversely ...