What is quarry sand
What is the difference between quarry sand from the river? How to distinguish high quality river sand and distinguish it from career
Sand career or river - which one will be smarter as you fill in the foundation, masonry, plaster and other construction work? This question leads to a lot of disputes even with experienced masters, not to mention the "boilers" in the construction business. But more orderly, in this case the sand is not due to the type of production, but rather to quality features, such as B. the number of impurities, the size, etc.
It is known that the sandersand often has too much foreign impurities, the most harmful of which is clay. It conceals sand particles, prevents the collection of components in solution, negatively affects the strength and frost resistance of the end product. In order to be fair, it is worth noting that the career edge may have a different percentage of impurities, and sand washing will help solve the problem.
The second as the career sand differs from the river, this is the shape of the grains themselves. If in the process of crushing rocks are formed, angular grains are formed, which improve the quality of the solution, then the water-treated grains, more gentle and rounded , the liability, the liability they are felt. From this point of view, the career person wins. An added benefit is the low cost.
So which is the better?
You should choose a river or career based on its "cleanliness".
How to check the quality of the sand, we have already written. If the washed career man has a meager amount of impurities, then it is possible to take it with you (after a small test, to check the real clay content of clay and according to the honesty of the seller). But in the case of river sand, you may not be afraid of the presence of clay inclusions in it. And don't wait a year later for your foundation to start because it broke.
If the grinding and river sand are equally in demand in the production of concrete, the sand with the kneading sand that has been mined in careers is unacceptable. For example, when making a dry gypsum mix, it is mainly pure river sand.
Because of its ability to skip water perfectly (in other words, because of its high filtration coefficient), the sand flow is much better suited for drainage work.
So when choosing a material should not only be based on financial considerations, but also pay special attention to the quality of the purchased sand. Then the result of your work will endure all the tests, including the most rigorous and objective review.
Sand is formed to crush rock. Cerbonized grains are spread by the wind. Those of them that stayed on land are mixed with other particles: clay, stones, dust.
Sand is formed to crush rock. Cerbonized grains are spread by the wind. Those of them that stayed on land are mixed with other particles: clay, stones, dust. The grains of sand that fall into the river are staggered, they acquire a rounded shape, wash water. Career someone contains many impurities. They don't just affect color. The most negative point is that clay, the content of which can reach 10%, envelops the sand and prevents the adjustment of the components in the solution. Because of this, the strength and frost resistance of the end product is reduced. Although it is possible to solve the problem by cleaning the washing method. In some solutions, such as plaster, clay prevents the rapid sedimentation of sand and acts as a plasticizer.
Career person has a lower price tag because it is created in an open way. The chemical composition does not allow its use in most construction works, but in some areas where there are no high requirements for technical specifications, it is indispensable. Washing (washed) career man is very similar in composition on the river, but it gives the characteristic angular shape and heterogeneity of the grains.http://pesok-tula.ru/) produced by hydromechanized (closed) in rivers and lakes without additional treatments and costs. It contains practically no impurities and has an aesthetic appearance. Coloring river sand of several shades: light yellow, light gray, gray. The highest degree of environmental purification determines its popularity when finishing the premises.
In all species, the most heavily used in construction is river sand, which is made up of particles of a rounded shape. Due to the fact that they do not have sharp faces, sand has increased fluidity and moisture. The grip of the sand changes slightly with moisture. Wet sand is not a major part, mating, holds the form. When you squeeze the handful of dry desiccant material in hand, the grave is easy to blink from the palm of your hand. If they stick together - there is a lot of clay and maybe water in the sand. Small river sand is soft, does not hurt the skin, so the beaches and playgrounds are used.
You can set up the grade of the quality of the river sand with another test. It is necessary to pour water into a transparent vessel and pour a sand. The mix is well stolen and left a day. If the water was slightly sparse, there is no dirt on the walls, then the sand is clean and has no foreign impurities. Buy River Sand can be directly at the production site. Here it is brought into the state of being filtered by mussels, el, only quartz grains. Storage takes place in the open air, in storage locations, under a canopy that interferes in a mound of a conical configuration.
Good quality river sand has the following properties:
- no impurities;
- earth grain homogeneity;
- high bloom;
- high filtration coefficient at maximum density;
- normal humidity.
The moisture factor is very changeable, so the river sand is sold in cubic meters by decreasing the volume. Buying sand by weight does not exaggerate the risk, but also for water.
This sand, which is mined from a career road, is bound to weather its origin. As rock cliffs are destroyed, they are shifted at depths, eyelids nearby in a century, until a person comes and does not begin to conserve this natural resource.
At the same time, even the blind sand remains quite loose mass, which is particles of various sizes, from 0.16 to 5 millimeters. Career man is formed from such rocks as quartz, mica and field change, limestone fractions are found. All types of sand are mined in different careers.
The only sand minister that appears in the process of weathering that you can face is the pollution of the clay and the presence of sufficiently large particles due to gravel. For construction work, however, sand fractions that have been mined in a career are most preferred due to their angular shape, which provides a better grip with astringent components.
It should be remembered that even with high roughness than the smallest sand, the more water will be required for its moisture, and the more binding agents will be required to coat the filler.
Sand career GOST sets tough standards
The standards are not only manufacturers of various goods made from natural materials, also selected according to GOST. Checked to determine compliance with the requirements are the most diverse.
For example, to select the sandy sand, GOST needs 8736-93 to determine the grain composition by sifting through a sieve with cells of different calibers (0.16; 0.315; 0.63; 1.25; 2.5 and 5 millimeters). As a rule, sand from a career with gravel keys without sieving is just on the pillow under the foundation.
If you just list some of the test quality checks that are in place, the picture is as follows. The sand resistance to alkali has been determined, this requirement must be taken into account when manufacturing concrete. There is a whole list of minerals that are unacceptable to use in building mixes.
Among other things, the sand construction sand is subjected to a test treatment with sodium hydroxide solution in accordance with GOST 8735 (study on organic impurities), which means that it should not change the mixture to the existing standard or darker.
Which is better to use, the sand is river or career?
After reading the characteristics of grinding career production (angles, with increased roughness, ideal for coupling with adding additives in building mixes), compare it to a flow analogue. In fact, the requirements for these are the same relative to the career grain composition, but there are slightly different reviews on GOST.
The difference between the sand of the river and the professional origin in shape, the river looks like aesthetic, it is rounded due to the long flowing water. But there is another difference - the price, and if you choose the sand flow or the career, then it is better to choose the first one.
River sand, unlike other types of this material, is extremely environmentally friendly, which determines its popularity in finishing the premises.
River sand is used both in landscape design to conjure up traces and flowers, and in manufacturing work for various plaster mixes. It is particularly preferred that the quality is influenced by the absence of foreign particles in the sand, ie its purity.
Among other things, the sand extracted in rivers and on the coast along the coast, perfectly passes through with moisture without taking it out in the thickness of the road surface. This property is often used in the construction of motorways.
There are many different sand classifications. The most common classification used by builders based on mining and finishing. It can include:
- Career person;
- River sand;
- Washed sand;
- Peso rate
- Seed sand.
Career and river sands are definitely molded instead of production, however, these types are not often assigned into individual categories. Sand career and river have similar properties and uses in construction.
The price of river sand is higher and is explained by the complexity of the production process.
River sand is taken from the river river. It has a low percentage of sublibhic and loamy impurities. The reason for this is that the sand is naturally naturally cleaned when water moves.
River sand can be divided into a separate household category: small (particles of at least two millimeters), medium (2 - 2.8 millimeters), large (2.8 - 5 millimeters). Most often, due to the movement of water in the river, the grains of this type have a rolled and buffing shape.
This type of sand is actively used for landscape design and construction, where the role is responsible for it. River sand is widely used as a component of concrete and cement solutions as an element of the drainage system and screeds. Among other things, some types of this material can be used, for example, in the manufacture of tiles.
River sands are also often added to vegetable soil, which allows its volumes to increase, the degree of crhigh, and various beneficial bacteria to obtain full-fledged air access.
In its color, the river sand can be light gray or yellow. It depends directly on the place of production.
The only downside to this type of sand is the price. Due to the complex mining, which is carried out with several castles and a powerful hydraulic pump, the cost of such sand is high.
For this reason, for large works, builders, as a rule, use other types of sand.
Career man is characterized by a large amount of various impurities.
Career hand is essentially the exact opposite of the flow. Its value is an order of magnitude lower, it is easy to mine and has excellent properties. On average, for example, the content of clay impurities in it is six to seven percent. Of course, there is also a pure career sand in nature that does not require further processing, but this happens quite rarely.
It is cleaned for processing so that the career edge is suitable for use in construction solutions as a water filter and other work of this kind. The result is a saturated or great sand. In terms of its properties, these varieties are closer to the river, but they cost much more than the career person.
Where is the career hand? It is used in the construction of drainage systems, automobile and railways, plastering and masonry to enrich the soil, the operation of the zero cycle, and much more.
What to choose
Which is better, river sand or career? This question is quite a complicated one. The amount of this or this type of sand directly depends on the requirement of the customer and the seriousness of the facility under construction. These parameters are important such as the price, the modulus of size, the percentage of impurities as well as the filter coefficient. Referring to these parameters for a given work, the selected sand is completely suitable, can be safely applied. It doesn't matter where it is made, as it happens that the quality and the more expensive river sand is not suitable for some tasks, but the career is coming out great.
Sand is an indispensable material in the construction field. Like a building material, it has its own individual properties and characteristics in use.
Used by River Sand Builders, it has a personal fractional and chemical composition, it is the most popular material in the environment of its analogues.
Homogeneous color (yellow or gray) with grains ideally a smooth surface Are at the bottom of the river. Iron and silicon oxides can be found as part of this sand. There is virtually no presence of clay contamination and other third-party trash in the river sand, as this type of sand is washed in the natural environment of the site. The size of each sand is small, it is mainly considered medium.
In the construction site, however, the coarser-grain view of the river sand is more valuable. It is extremely rare, which makes it expensive. Sand is in each direction of drying. This type of sand is successfully used for masonry, finishing, as well as design work. It is found in autobas used to make bricks.
Has rough river sand inconspicuous color, Neutral shade, it is perfect for the decor that is used on the home office.
Big river sand.
This type of sand is made from mining in rivers. The boulders are divided on specialized equipment, and later the pieces obtained are crushed and divided. The largest sandbank can reach a diameter of 5 millimeters.
River sand is known in the following factions:
- Mediterranean Sea.
According to grain sand, the sand is calibrated with a special sieve with different cell diameters.
River sand is minimized with the use of backhoes, which in turn is fixed on the barge. Excavator has specialized mechanical equipment, which includes:
- Electricity pumps.
- Sand reservoirs.
The purchase of river sand must be started by looking at its passport and certificate, in which it is necessary to answer the characteristics GOST - 8736-93.
River sand applications
This material is common for:
- Concrete products and concrete products (sand helps to maintain them for a long time and increase their frost resistance).
- Make drywall mixes.
- Creation of foundation cushions.
- Manufacture of solutions necessary for masonry and plastering work.
- Decoration of premises.
- Fill aquariums.
- Arrangement of playgrounds for children and so on.
Benefits of river sand
- Environmentally friendly product.
- It has a high moisture specification.
- Perfect noise isolation material.
- It won't rot over time.
- Meets most technical requirements.
Career person is shown as loose rock cliffs, Of which, part of which can be found in the naked eye of the claw from wild spar, quartz, mica and other minerals in natural conditions.
In the construction field, career edge is a very popular material that is directly linked to its good natural properties and a low price.
Not only is it used in the construction field, but such sand has found its widespread use in the fields of industry and agriculture.
Career man is mined in the following way - digging the rocky rock, digging in large formations. In the future, such sand will be cut and washed. He refers to K. Gost - 8736-93..
Classification in size:
- Small grain diameter not higher than 2 millimeters.
- Average - 2 - 2.8 millimeters.
- Coarse-grained - up to 5 millimeters.
Varieties of career sand
- To wash(Washed Sand) - This type of career mandrel is made to minimize the flooded debris and fields with hydromechanical equipment. Sand, thanks to this technology, it appears clean, there are no impurities and unnecessary components.
- Seed sand - Career man is sifted of stones and large particles.
- Sand sad - Raw career sand is mixed with various components, the material price is very low.
- National economy.
- Applied Arts.
- Sand is sold untreated, as a result of this business being able to create and sell career one, it can save on cleaning and sifting.
- The production process is pretty simple, which makes the material itself cheap.
- The sand is delivered at low prices.
Together between river and career sand
- Used in the construction sector.
- Have the same indicators for GOST.
- Used for decorating.
- Different ways of the sand kit.
- River sand is considered a cleaner material, as in him, unlike career, only fragments of clay can appear.
- Career man is a cheaper building material.
- River sand is characterized by its environmental friendliness.
- For children's sandboxes and aquariums, it makes more sense to choose river sand.
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