Strip foundation with his own hands: step by step guide

Strip foundation, made with his own hands

Advantages and disadvantages of belt type foundation

It got its name because it has a kind of reinforced concrete tape recessed into the ground. Interior and exterior walls of the structure throughout its lower plane based on the surface of this film. According to the type of penetration into the ground foundation tape type is recessed (1.45 to 1.65 m) and fine recessed (less than 1.4 m). The first type is built for large buildings and high-rise buildings, and one for low-rise construction. According to the structure, it can be prefabricated and monolithic. Monolithic concrete mortar is poured out, and is made of prefabricated individual concrete blocks.

Example arrangement of strip foundation for the wooden frame of the house

The following materials can be used for the construction of a monolithic foundation:

• Portland cement;
• sand;
• gravel;
• Frag breed;
• broken bricks;
• reinforcing steel;
• water.

The need for these materials can be previously calculated by the calculator for calculating the concrete strip foundation or manually.

EXAMPLE strip foundation with fine recessed

Strip foundation has several advantages that make it the present popular among all the other types of bases:

• weak susceptibility to heavy loads;
• simple construction without the use of heavy equipment;
• reliable construction;
• the possibility of building on the grounds of non-uniform density;
• wall structure may simultaneously serve as walls in the basement of the house.

There he and disadvantages:

• for construction need a lot of materials;
• required to carry out waterproofing work.

For the construction of strip foundation is used wooden formwork, reinforcing steel, concrete

For all its advantages and disadvantages of this type of base is widespread, especially in the private construction.

Useful advice!In order to calculate the required amount of solution, has long been invented calculators for calculating concrete strip foundation. They simply enter the parameters of the trench to get full information about the amount of materials required. Using these services may also be calculate the cost of foundation.

Strip foundation with his own hands: step by step guide

Due to the fact that construction is not necessary to use a heavy technical equipment, anyone can to build a strip foundation with his own hands: step by step guide of the work includes several independent stages.

The detailed scheme for the construction of strip foundation

Preparation and marking the place

Before proceeding to the construction of the foundation necessary to make the layout area and layout of the axes. Under the plan refers to the alignment of the entire site at a height of construction. If the height difference over a considerable area, this fact must be taken into account during the digging of the trench. In the higher areas will have to dig deeper, but in the lower height of the foundation will be more.

Step 1: Align the platform for the construction and layout of the place

Partitioning axes is performed by a triangle with sides of 3: 4: 5. Corners should get straight, and all the diagonals are equal.

Excavation

This digging trenches to the required depth along the axes of the markup. Its depth depends on the density of the soil, the distance to ground water, the weight of the building being erected. For high-rise buildings - is 1.5 m, and for private homes is sufficient to 1 m, if the ground allows. After trench digging closure, at its bottom is carried ramming and drainage layer of sand and gravel. This is called a pillow. The width of the trench depends on the type of materials that will be made of the wall. For private houses enough 60 cm.

Step 2: Planning area and trenching

Create formwork for strip foundation with his own hands

When the trench is ready, begin to construct the shuttering. Some construction companies have in their arsenal team reusable formwork, which is very convenient to use. His hands formwork for strip foundation can also be made. This will require a timber: bars and planks. Its amount should be calculated individually.

Step 3: After the trenching begins formwork construction

Decking has the form of a wooden box mounted over the entire trench. Since there is poured an aqueous solution, it must be maintained tightness. If this can not be achieved only with the help of boards, that can be clad with roofing felt in the formwork. The construction must be rigid enough to withstand the pressure of the poured concrete. For this form wall webs bonded to each other through 2 - 3 meters. As you can see, creating formwork for strip foundation with his own hands is not so difficult.

Step 4: Create formwork for strip foundation with his own hands

Useful advice!To lumber used in the manufacture of the formwork can be reused, it is necessary to design it so that when disassembling not to damage the board.

What grade of concrete for strip foundation is used

Before you start to fill in the monolith, you must ask the question: what grade of concrete for strip foundation is optimal. This parameter depends on several factors:

• the weight of the entire structure;
• the availability of additional loads on the substrate;
• a reinforcement is applied;
• type of soil;
• climatic conditions of the terrain.

Step 5: Preparation of cement mortar for strip foundation with the help of a concrete mixer

For the installation of concrete pads under the basic foundation will be enough M100 brand. Under the lightweight construction: panel houses, baths and household outbuildings suitable M200. Construction of a wooden house or building blocks of light requires the use of the brand M250. For massive constructions and buildings of preparing high quality concrete brand M350, with a strength of 327 kg / cm². Higher grade of concrete used for the construction of geometrically complex structures and in construction in regions with harsh climates. Knowing these characteristics, every man for himself can determine: what grade of concrete for strip foundation is required.

laying fittings and pouring the foundation

Having defined the brand of concrete, it is necessary to prepare everything necessary for the fill. Some bought ready-mixed concrete in specialized firms. Most people prepare their own solution. For this purpose, it is desirable to have a mixer. It mix all the ingredients. Them proportion It depends on what grade of concrete for strip foundation was chosen.

Step 6: Reinforcement strip foundation

At the bottom of a trench around the perimeter of the stacked steel construction, welded of rebar rods. The more of these rods are used and how they are thicker, the stronger will be the foundation of all.

The prepared concrete is poured into the trench and up the formwork tier mark and leveled, so that its surface is perfectly horizontal and flat.

Step 7: Fill the prepared concrete into the trench for continuous footing

Useful advice!When pouring the foundations of a large amount necessary to use special vibrators, which deepened in the concrete column. They expel air bubbles, making the monolith more uniform and durable.

Step 8: Provide waterproofing basement of coating materials

After a complete readiness of the foundation you need to ensure waterproofing the walls of coating materials. Properly executed foundation will give long and reliable operation of any object.