Screening of crushed stone - an economical material for use in construction

As a result of processing various rocks for the production of crushed stone, an additional product - screening is obtained. It is formed after sifting the residues of crushing through special screens to separate them into fractions. In fact, the screening of rubble itself is a small fraction of it.

Characteristics of screening

In its properties, screening is similar to the original feed. Like crushed stone, it is characterized by such indicators as density, shape, strength, the content of dust particles and clay. It can be limestone, granite, marble, etc. The color depends on the rock, the by-product of which it is: gray, gray-green, reddish, pink. Screening of rubble is divided into fractions: the smallest 1-3 mm, the larger ones up to 10 mm.

Despite the fact that screening is a by-product in the production of crushed stone, it can be considered an independent building material, which is widely used. Now many manufacturers consider it more profitable for their needs to purchase expensive grains instead of expensive sand.

Application of screening

Compared to rubble, cheaper material is cheaper, and therefore its use significantly reduces the cost of many construction works. It is used for the production of concrete and reinforced concrete products, the manufacture of various architectural details and paving slabs. This loose material is necessary for the installation of filtration systems for water purification from harmful impurities, for the manufacture of asphalt mixes, for the production of decorative wall panels and various finishing materials.

Screening of granite gravel is indispensable in landscape design for decorating flower beds and flower beds, decoration of garden and park areas. It is practically a non-waste environmentally friendly material. It is often used to produce decorative garden paths, bizarre not only in shape, but also in color. Alternating screenings of different colors, the masters instead of the boring cover of paths and areas create whole pictures in the garden. If the bulk coating to protect a small curb, then this water-permeable material does not wash away even a heavy downpour.

In winter, screening of crushed stone is widely used for sprinkling slippery sections of the road surface. The structure, specific gravity and optimal particle size of this material provide an excellent anti-slip effect, in addition, screening is safe for the environment, since it does not contain chemical reagents in its composition. Apply it economically, especially if the spring is collected bales for use next winter.

Cost of dropout

The cost of this type of product depends on several factors: the remoteness of the extraction site from the destination, the type and type of cut-off, the volume of supply, the cost of transport services, etc. When purchasing the material, it is necessary to require a hygienic quality certificate confirming that the screening of crushed stone is in compliance with established standards and that Especially important, does not contain radionuclides.

The low price, strength and versatility of this by-product of rock processing are the main advantages due to which sifting is so popular both in construction industries and in everyday life.