Belt assembly base - how to learn all the features of construction ?

belt assembly foundation - design features

Unlike the monolithic, the regeneration of which the reinforcement cage is constructed and filled with concrete at the construction site, precast concrete foundation is laid of blocks, previously made at the factory.

Application of this method of construction allows several times to speed up the construction of building foundations, and this is an important and invaluable advantage, often overlapping number of existing serious shortcomings.One is the sensitivity to the type of ground, as in the construction of wet and damp soils watertight construction blocks in areas of joints.

When installed on clay and loamy soils as a result of swelling or upon the occurrence of flood forming the foundation blocks may sag, creating a threat to the integrity of the building.On dry soils as such is not a problem and made the foundation of a fully justified.

Plan belt precast foundation - that it should be borne in mind?

device precast strip foundation is more expensive than the monolithic, as in this case can not do without the use of special construction equipment.When laid the foundation of ribbon assembly, the size of its constituent units can not be changed, so there is a gap, which is necessary to fill the masonry or concrete solutions.

In depth laying the foundation and distinguished buried melkozaglublenny.The first is laid in the trench, the base of which below freezing.At the bottom of the trench is mounted booster cushion, but it is already installed smeared cement mortar blocks.

Melkozaglublenny foundation is being built above the freezing level.The order of assembly work does not differ from the above, but this option is generally used in the case of high groundwater and facilitated type buildings.

Calculation precast strip foundation is directly related to its structure and depth, as well as the area of ​​the sole.This issue is more serious than it may seem at first glance.In a small area there is a threat of the foundation supports the destruction of the entire structure, with unjustifiably high - inevitable unnecessary material costs.

correctly determine the number of each size block will help plan the belt precast foundation, necessarily present in the project.

device precast strip foundation - do with their hands

construction of precast foundation begins with the construction site clearing and leveling the surface.Topsoil is removed to a depth of 8 cm. On the ground pegs and string is the foundation of the markup for which dug a trench 15-20 cm deeper than the intended depth and as much wider than the thickness of the foundation blocks.

bottom of the trench is laid a layer of sand 15 cm, which is repeatedly watered for its complete shrinkage.Then the top is filled 5-cm layer of gravel.All layers of compacted asphalt and poured grease.Masonry blocks begins with the corners and places where cross-bearing walls.

Between them stretches the twine, and along it strictly on the level of being further masonry.The blocks are laid in a trench with a crane.After the completion of that part of the outer surface of the wall, which is below ground level, is protected against moisture by means of glued overlap of the two layers of roofing material.