Gravel for drainage - choose filler system

Why fill up with gravel drainage?

Properly executed drainage pipe system prevents the penetration of moisture into the building, erosion and pressure on the support base and the entire structure as a whole.The operating principle of the underground collecting and draining water based on its entering the intake pipe (drains) through joints, openings or cracks in the walls.

Such flow occurs due to the difference in water pressure, provides depth Bookmarks elements of the system below the water level.The calculation of such depth, the number and types of materials for the entire structure is conducted on the basis of indicators of the most "wet" periods of the year - fall and spring.

most commonly used system is horizontal with a regular arrangement of tubular cavity drains with aggregates (crushed stone or gravel for drainage).In it for the reception of ground water in the walls of the pipes are made holes where water comes as a result of the aforementioned pressure differential.

Rubble and gravel for drainage - main differences

What applies to the aggregate of tubular elements?Its purpose is to prevent their silting up, and in this case, it performs a filtering function.According to the rules, drains are placed into prepared in advance according to the design of the trench, which is arranged at the bottom of sandy pillow is not thinner than fifteen centimeters, and on top of it - a layer of crushed stone or gravel.

Top made installation of all components: geotextile (if applicable), pipes, joints and corners (other fasoniny) wells (drainage and collector with check valve), followed by backfilling with gravel and produce ground.The proper functioning of the entire complex exhaust excess moisture has a value which is used for drainage gravel.

As is known, gravel composed of rounded fragments of rock or minerals of different sizes.It is believed that fragments of gravel can reach twenty millimeters.We differentiate between a shallow (up to three millimeters), medium (up to ten) and a coarse fraction of the material.

Unlike gravel rubble has acute-angled view of the wreckage of the same rocks or minerals.Its elements, which can reach a hundred millimeters, obtained by crushing natural or artificial stone and other materials.

For the purpose of removing moisture through the system drains are best used fractional material (gravel or crushed stone) with dimensions equal to the fraction of twenty to forty millimeters.

crushed stone for drainage - Use conditions

Keep in mind that you can only use well-washed material.The same applies to the coarse sand for the bottom cushion in the trenches.Flushing is required to reduce the siltation of the entire system.After laying and installation of pipes with filler, filling the top layer of crushed stone or gravel required factionalism carried closing drainage geotextile fabric, in which the soil is filled with excavated previously.

This is important to provide for the laying of the slope of the natural flow of moisture in the direction of a system of wells.Filling the top layer of gravel is also dependent on the characteristics of the soil, which is arranged diversion of moisture.And the denser soils, the thicker filling required.

All-designed system should collect the water in a special pit, located in the lowest point of the relief plan.Its structure is laid capacity receiving the maximum amount of moisture, as defined in the above "wet" seasons.If necessary, it can be performed several wells.By the way, experts advise to use water from such wells for irrigation.