Concrete has a fairly high strength oncompression, however, the base is not capable of transferring tensile and flexural loads. If you provide the foundation, which is made in the form of a monolithic structure, with a reinforcement cage, then the mentioned drawback will be completely eliminated. Reinforcement of the foundation with your own hands can be done quite simply. To begin with, it is necessary to determine what design features the base will possess, as well as to form the framework system correctly.
The components of the reinforcement cage must haveclean surface that will ensure good adhesion to concrete. In order to choose which type of reinforcement will be carried out, it is necessary to calculate the load exerted on the foundation. If the impact on the base is insignificant, then a kind of binding can be used. Whereas if the building has heavy enough walls, it is recommended to use welding.
Reinforcing the foundation with your own hands shouldmade using rods that have a transverse variable cross section, that is, they have ribs. This refers to the valve, which will take on the main load. Such a framework will be characterized by the highest indicators of the level of adhesion with concrete. Smooth reinforcement should be used as auxiliary elements, the task of which will be the distribution of loads on the base of the house.
Reinforcing the foundation with your own hands shouldcarried out using a special tool. It should be selected on the basis of the amount of work to be performed. Mating reinforcement cage for the foundation of a small size should be carried out using a traditional manual or automatic hook, whereas if the work will be more voluminous, it is recommended to use a specialized tool such as a pistol intended for knitting.
For manipulations should use a piecewire length of 30 cm. The workpiece should be folded in half. The loop of the wire should be entered diagonally across the armature, and after it should be moved to the ends. The resulting loop is threaded into the hook, you must follow the method of scrolling. The master must interlock the ends of the wire, thus creating the desired connection. Before starting work, it should be remembered that during operation the strip monolithic foundation will be subjected to bending stress, especially in the longitudinal direction. Its reinforcement should be made by laying the frame grid in two or more layers. All this will depend on the size of the tape.
If the foundation will be reinforcedwith your own hands, then you should take into account some points. Among them is the fact that in the tape structure the longitudinal elements of the frame system will take on the greatest load. In this regard, in their place should be placed ribbed rods, the diameter of which is equal to the parameter from 10 to 14 millimeters.
As for the vertical and transverse elementsframe, they will perform a distribution, that is, auxiliary function. That is why in this case, you can use a smooth reinforcement with a diameter of from 6 to 8 millimeters. The step of their installation will vary from 100 to 300 millimeters. The number of rods used depends on this indicator. At minimum loads, this figure can be equal to 500 millimeters. The finished frame should be mounted in the formwork, observing a gap of up to 50 millimeters. Retreat must be ensured from the bottom of the trench and formwork shields. This will drown the metal rods in the concrete, eliminating the risk of corrosion. It should be remembered that the greatest level of stretching is in the upper areas of the base.
If will be reinforced tapefoundation with your own hands, it is recommended to pay attention to the binding technology of reinforcement connection. Prepare class B1 wire. When working with corners, the reinforcement can be laid at a right angle or using bent elements.
If will be reinforced tapefoundation under the bath with their own hands, then special attention should be paid to strengthening the corners. This is due to the fact that quite often the deformation does not occur in the central part, but in the zones of the corners. Work on these areas should be such that one end of the bent element of the frame goes in one direction, while the other - in the opposite.
Experts advise to use itmating technology, abandoning the welding machine, for the reason that not every type of reinforcement is suitable for carrying out such work. Among other things, welding quite often leads to problems that are expressed in steel overheating, which causes a change in the quality characteristics of materials, and a thinning of the rod in the area of welding can also occur. That is why you risk getting not strong enough seam.
Correct reinforcement of strip foundationsbegins with the installation of formwork. The inner surface should be covered with parchment, which simplifies the removal of the structure. Rebar should be driven into the soil, the length of which should be equivalent to the depth of the base. At the bottom you need to install the stand height from 80 to 100 millimeters. About two or three threads of the bottom row of the frame system are laid on them. In the role of supports, bricks are often used, which are mounted on the edge.
If you will be reinforcedstrip foundations, schemes, tips for conducting these manipulations presented in the article will help to carry out the work. The lower and upper rows should be attached together with the transverse elements to the vertically oriented pins. In those places where the elements intersect, a bundle should be made or a welding method should be used. Above ground level, the rods should be raised at least 8 cm. After the reinforcement has been installed, the ventilation holes should be formed, and then the concrete solution should be poured. Ventilation will contribute to improving the damping qualities of the foundation, as well as prevent the occurrence of putrefactive processes.
Requirements for working on monolithicslab higher than those that apply to the tape base. In the latter case, the width is less than the height, which is why the structure is subjected to bending stress only in the longitudinal direction. As for the monolithic slab, it has opposite design features, due to this, the surface is subjected to bending loads not only across but also along.
If you are thinking about how to make reinforcementthe foundation with their own hands, then for this you should use valves with a diameter of 12 to 16 millimeters. All elements are made exclusively of ribbed rods. The average size of the cells above and below the located grids should be 200 x 200 millimeters. The step between the belts is equivalent to 100 millimeters. If there is an insulating layer, then the assembly of the frame to strengthen the ribs must be carried out beyond the base. This will prevent damage to the insulation material.
If you are interested in how it is producedproper reinforcement of the strip foundation with your own hands, then you may want to learn about the strengthening of the pile foundation. After all, it is this type of construction that can form the basis of the building to be erected. The technology in this case is almost no different from the work recommended for the formation of the columnar foundation. In this case, you should observe one nuance. It lies in the fact that the vertical reinforcement is placed in a circle so that the system does not have corners and sharp sections. For one pile it will be necessary to prepare rods, the number of which varies from 3 to 5.
After the tape reinforcement schemeyou yourself became familiar with the foundation of your own hands; you can also get acquainted with the technology of strengthening the columnar foundation. The reinforcement cage should be assembled from several vertically oriented rods, the diameters of which vary from 10 to 12 cm. The ribbed reinforcement, which belongs to class AIII, should be used. For the formation of horizontal elements should be applied smooth thin mounting 6-millimeter reinforcement.
