Washed sand: characteristics, production methods and application

Building sand is a loose material with a grain size of up to 5 mm. To improve the quality it is sometimes enriched with gravel up to 3 mm. It must be sure that they belong to the 1st class of radioactivity. It is not allowed to react with water and bases.

Content

     1. How do you use the arena of the race?.
     2. Varieties and their technical characteristics..
     3. How do I get alluvial sand?.
     4. Application of washed sand.
     5. Properties of per-coated sand.
     6. Which sand is the best alluvial or purebred.

1. How do you use the arena of the race.

The planted washed sand has a homogeneous structure but contains inclusions of salts, humus and plant root particles, which are inferior to other building materials.

For this reason, it is used to build blends and landscaping processes where high quality is not required. Sometimes it is washed with hydro-mechanical devices for improvement, but it is also more expensive due to the additional energy consumption of building materials.

The place of storage and storage of sand obtained with a hydraulic alluvium: Alluvial map. The spread of water beyond its borders prevents the well from falling out of the local soil. Obvalyu excavators and excavators.

2. Varieties and their technical characteristics.

It would be a mistake to think that the sand was washed, alluvial and that the same material was washed.

They differ significantly:

The alluvial sand (river), which is extracted from the bottom of the river, contains polished rounded particles and is of high quality. Suitable for the construction, the glass production as well as for the establishment of a private house. The cost of 1 m3 of river sand in Moscow (including delivery) varies between 800 rubles.
The extracted sand is recovered by washing in the quarries. This is the most universal quality, it contains no clay, dust or organic substances, its edges are sharp and uneven, which is good for the adhesion of building materials. Suitable for various purposes: building construction, road construction. Like the river this type belongs to the most expensive sands, the price of 1 m3 of washed sand costs 800 rubles.
Flood - sandy soil in the form of excessively saturated quicksand

3. How do I get alluvial sand.

The sand is actively flushed with water using special hydro mechanical equipment, cleaning wastes and unnecessary item

To wash the sand you have to start your field, then wash the dough with high quality equipment and dry it with technical means. In several stages of the sand alluvium it is possible to obtain a high quality fine material for the construction of mixtures.

4. Application of washed sand.

Washed sand is often used in the manufacture of paving slabs. Production of concrete mixtures with special resistance. in the drainage

Glass production; Manufacture of rings, blocks and other concrete products; Exterior design. It is often added to concrete mixes, line compositions, paints and gypsum. If you use sand mixtures for your own use, you must choose a concrete that is not inferior to the quality M300 and clear water. To accelerate the solution, plasticizers are added to the composition. Fine-grained quartz sand is used in road construction to produce wastewater and as an underlying layer.

The alluvial sand particles generally exceed not more than 0.6 mm, so that they can be used for plastering, laying high-quality road surfaces, the production of concrete and bricks.

In private buildings, the use of expensive sand is required for special permanent constructions: foundations, fences, solid walls, pillars, parking paths, swimming pools, fountains and others.

Modern construction requires high quality natural materials. Well washed particles do not adhere, they do not form lumps. The sand must be washed in places with low humidity and without strong wind. Otherwise, some sand will be deteriorated. It is possible to put sandy weight in canvas bags or bags. The sand package is 25 and 50 kg.

The prices of the sand depend on the type (river, laundry, seed), the filtration coefficient and the distance from the point of sale and the purchasing volume. The shipping costs are often included in the price. Coarse sand is cheaper because it is easier to handle.

5. Properties of per-coated sand.

There are big and small types of sand

The main feature of this material, the minimum content of mud and clay, does not exceed 0.3%. All elements of the alluvial mine sand do not exceed 2,2 mm. There are big and small types of sand. There are also differences in hues: from saturated gray to bright yellow. The stadium requires no special storage and transport conditions, it only needs to be protected from moisture and precipitation. Due to the minimal amount of impurities, the material is best suited for the construction of any complexity.

6. Which sand is the best alluvial or purebred ?

Types of alluvial land and quarry are commonly used

The impurities in the racing arena can be up to 30%, so their cost is much lower than the price of already washed sea or sand. The composition consists of up to a dozen different components: salt, humus, gypsum, root parts, large stones, etc. The main tone is clay (plastic sedimentary rock, which reduces the filtration coefficient and the strength of the concrete solution). A double treatment improves the sand quality and thus the costs. It uses untreated sand: as a foundation for the foundation, especially of low quality and for some road works.