The foundation of asbestos-cement pipes

One of the most popular designs columnar foundation - the foundation of asbestos cement pipes.This technology is used in the construction of buildings and light frame houses, but its implementation requires a minimum of money and effort.In addition, the foundation of asbestos-cement pipes are used in areas prone to flooding - has the necessary material foundation for this strength and resistance to wetting and destruction.

foundation Advantages of asbestos-cement pipes

• Easy implementation, eliminating the need to involve special construction machinery;
• Tight schedule of work and endurance;
• simple calculation of the foundation, which can be run independently, without recourse to the project organization.
• Possibility of construction and long-term operation of buildings in flood-prone areas;
• low price of materials.

Scope columnar foundations

pier foundation of asbestos-cement pipes operate as the basis for the construction of light structures: summer cottages, small baths and saunas, terraces and porches, as well as the lightweight frame house.In areas with cold climates such a foundation allows you to save, because the penetration of separate pipes and materials, and the cost of work is much cheaper recessed belt or block foundation.

calculation foundation of asbestos pipes

For the calculation you need to know the depth of soil freezing in your area, as well as the planned load on the foundation.The depth of freezing can be determined by reference data.The directory contains the freezing depth of bare ground without snow cover.If your location has a high snow cover, the reference data can be somewhat reduced.

to the reference value should be added 0.3-0.5 meters - this will be the required depth of the underground part of the piles.Above the level of the soil piles of pipes generally perform at 0.3 meters, but if there is a possibility of flooding, they can perform and higher.

diameter pipes depends on the structure weight.For light enough arbors pipe diameter of 10 cm, log buildings is best to choose a pipe with a diameter of 25-30 cm.

load on the foundation structure depends on the structure and the material from which it is performed.Below are the approximate information on the specific weight of various materials.The calculation must take into account not only the walls, but also the roof, insulation and finish.

piles on a building corner, at the intersection of load-bearing walls, as well as on the perimeter at a distance of no more than 1 meter.Reallocate the load at each pile must be no more than 800 kg.If the result of calculating the value of the load has turned more to increase the number of piles.

According to the results determine the right amount of pipes, as well as the required number of fixtures at the rate of 2-3 reinforcing rod in each tube.

number of concrete depends on the pipe diameter.On average, to fill 10 meters of pipes with a diameter of 10 cm is necessary in view of the base of 0.1 cubic meters of concrete pipe with a diameter of 20 cm - 0.5 cubic meters, and for the pipes with a diameter of 30 cm - 1 cubic meter of concrete.

technology performance pile foundation of asbestos-cement pipes

• preparation should start with the marking.Remove from the construction site debris and foreign objects as possible align it and remove the sod.Labeled using pegs and ropes contours of the future of the building, the angles of intersection of the walls.Celebrating site installation of piles pegs.To check the squareness and accuracy of marking angles verify the equality of the diagonals.
• begin drilling wells under the supporting columns.This can be done using a drill, and in his absence you can dig a hole with a diameter greater than the diameter of the pipe.Well depth - 20 cm larger than the estimated size of the underground part of the pile, you need to sand cushion device.

• Arrange at the bottom of each well of a sandy base 20 cm thick, tamped it, and shed water.After absorbing the water line the bottom of the roofing material.Thereafter, the well pipe mounted prepared.If the pipes have to cut to the desired size, it is necessary to leave a margin of about 10 cm in height to align the foundation after the height of the supports.

• pipes are aligned on a level fixed with the help of temporary supports of the wooden bars.Once again, check the equality of the diagonals.In areas with shallow groundwater is carried out waterproofing pipe mastic bitumen to ground level.Dried mastic.

• ready-mixed concrete: 1 part cement mixed with 2 parts sand, diluted with water to the consistency of the batter, then pour the resulting solution into 2 parts gravel.Kneaded well and pour the base pipe by 40-50 cm.
• tube is lifted by 15-20 cm and left until complete solidification of concrete.This technique will help to create a strong foundation of support that resists forces pushing at the ground heave.
• After hardening of the concrete hole on the outside of the pipe further waterproofing roofing material and covered with river sand, throw it and ram, checking the level of the installation.Tensioned between the string and set the bar and align them horizontally.

• Inside pipe fittings set: a few bars, connected to each other by transverse webs of wire.Mix and pour concrete remainder of the tube.To remove air from the solution pierce it several times a metal rod.
• After complete drying of the concrete, in two or three weeks, the foundation is ready for further construction.In order to prolong its life, it is recommended for waterproofing bituminous or polymeric materials.

device pile foundation of asbestos cement pipes to reduce the cost of works on the construction of a solid foundation under the building several times.However, when too much load such a foundation may not be sufficiently durable.In this case, better to choose another type of foundation, belt or monolithic.

Finally, be sure to read about the foundation of bored with their own hands.