How to pour the foundation under the house with his own hands - a technique + video

In individual housing construction most widely strip foundations, because they perfectly fulfill their functions in almost all types of soil, not too complex for self-priming, and are relatively inexpensive.Another common type - pile foundations that are used on moving ground.And the very first step would be the arrangement of such foundations accurate calculation of the required number of building materials, their purchase and delivery to the construction site.In this case it is reasonable to immediately purchase the entire volume of materials, so as not to be distracted by additional purchases during the work and have time to do everything in one warm season.

directly on the construction site to get started is to mark territory, ie,demarcate the future foundation.To make the markup should be taking into account all factors: the footprint of the future house, its mass, relief of land and groundwater levels etc.To do this, on the perimeter of the building and along the borders of the internal-Ground pegs between which parallel lines stretched twine.Check the accuracy of mutual respect for all squareness marking strips can be achieved by comparing the diagonal between the corners of the trench.If they are equal, all corners are straight.

Digging a trench for pouring the foundation

second stage will be digging trenches for strip foundation or drilling for pile.The trench will be further filled strip foundation, and well set the pile, so you should pay special attention to the accuracy of these operations.In particular, the trench wall boards must be fastened, forming a foundation formwork.Instead of boards it is possible to use any other suitable material, but the wooden boards are beneficial for their durability, low cost and ease of working with them.The bottom of the trench must be below the freezing depth of soil.Minimum difference between these levels is 20-30 cm. The depth of the wells depends on the density of the soil, and is usually about two meters.

When filling strip foundation will require the creation of a sand cushion on the bottom of the trench.This is done by sifting the sand layer followed him by pouring water and rammer.The thickness of the sand cushion depends on soil characteristics such as swelling.On top of the sand layer is required to fit the belt waterproofing material.

reinforcement.

Since the building creates a significant burden on the strip foundation, a simple fill in the trench of the cement mixture is not able to ensure the establishment of the required strength of the concrete base.To the foundation is not destroyed by the action of compression forces, its design should include reinforcing materials.

reinforcement of pile foundation is administered prior to pouring the concrete several metal reinforcement rods.To strip foundation required more complex spatial structure consisting of placed in the trench and vertical metal rods metal reinforcement.The distance between adjacent (parallel) rods should not exceed 40 cm. For the reinforcing rods have not changed the orientation in space, they should be connected with steel wire or grab electric welding.

pouring concrete.

Concrete solution should be prepared immediately before pouring.If it was decided to buy ready-made solution, in which case it is delivered in a mixer in the form ready for use.For independent manufacturing solution worth considering the advance purchase or rental of mobile compact concrete mixers, to be able to prepare the concrete directly on the construction site.Standard concrete mix proportions are considered as one of the cement takes approximately three pieces of debris cleaned of sand and five parts of a medium-sized gravel.

Filling should occur evenly around the perimeter of the strip foundation or a circle around the pile in the hole.This should ensure that in a well or trench was not formed voids.Furthermore, after pouring concrete mortar must be further compacted using machine or other device of similar purpose.

After pouring the concrete foundation will take time for curing, so immediately begin to erect the walls of the house is totally unacceptable.The waiting period depends on the ambient temperature, but in the summer the concrete is gaining strength branded for about four weeks.

Video - how to pour a foundation under the house with his hands