How to build a pier foundation alone - types , technology and advice

pier foundation - one of the most popular in private construction.It combines the reliability and efficiency, speed and ease of performance with low labor costs.This is one of the types of foundations that you can perform with your hands relatively simple .

Advantages and disadvantages of columnar foundations, their field of application

Columnar foundations are used mainly for lightweight wooden buildings: small 1-2-storey houses made of logs or lumber, frame-panel houses, baths, change houses, gazebos, greenhouses, sheds, etc.In these cases, this foundation has certain advantages over other types of foundations:

• Cost .It is the most inexpensive type of home support (2 times cheaper than other species), allowing significant savings in construction.
• Quick and easy erection .Such a foundation can build even one person in a fairly quick time.
• Reliability .Pier foundation provides a reliable, solid foundation for the building, has a long service life.
• Versatility .This type of foundation can be used on any grounds (except heaving), for any character of the landscape.
• minimum preparatory work and waterproofing process.

Disadvantages of these foundations - it is impossible to use it in the construction of heavy buildings, build a cellar under the house or basement.

main types of columnar foundations

Depending on what material a developer, what skills he has, and what means are at its disposal, select the type of pier foundation.Thus, as the material for the pillars can be chosen wood, brick, concrete monolith.Wood - the most fragile and short-lived material, so it is used mainly for temporary buildings, after treating it with antiseptic and waterproofing compositions and materials.

brick pillars for the foundation of the most accessible on the manufacturing technology is much more durable and resistant than wood (serves up to 100 years), permit the construction of two-storey houses.But the work with a brick in the foundation laying a very time-consuming.A burnt through brick, which is required for the construction, rather expensive and it is difficult to find.

technology of erection of pier foundation

Preparations .These include site clearance, its layout, in which remove the top layer of soil and level the surface.Then mark out the land, keeping high precision right angles, fixing axis in accordance with the project.Dig a pit, placing them strictly along the axes.If holes have a depth of 1 m, it is possible to do without strengthening their walls.At greater depths make wider pits and slopes, and they operate by means of fastening planks with spacers to prevent shedding of soil.

device formwork .Perform the shuttering boards from 100-150 mm wide and 40 mm thick.Flat side when mounting put to concrete.It is possible to take the plywood formwork (water-resistant), chipboard, iron sheets.Decking can be permanent and in this case using asbestos cement and metal pipes (diameter of not less than 100 mm).

reinforcement, pouring the concrete foundation .The reinforcement is produced in the longitudinal direction by means of metal rods 10-14 mm.Besides it is necessary to perform the horizontal bridges of 6 mm wire.The rods must protrude above the base of 150 mm in order to use them in the future could link the column frame with raft.Pouring concrete is produced by layers of 20 cm, followed by rammer.Be sure to make waterproofing the basement, for example, the roofing material.

Installation grillage .Carry out the connection between a jumper using reinforcement cutting and welding them.Then the formwork is mounted perform the framework of reinforcement, concrete is poured a solution.After the final curing of concrete and gaining their characteristic strength, work on the waterproofing, the pit covered with soil and assemble the floor slab.

Performing Zabirko - wall of bricks between the foundation pillars.Such a wall is needed to protect the space under the building from the cold air, exposure to rain and snow.It necessarily arranged technological openings through which a supply of communications and implemented ventilation.

Thus, pier foundation - the optimal solution for the construction of their own hands a small light buildings in budget savings, and the process of its construction can handle any developer with minimal skills.