![]() But in any case, each layer must be moistened and carefully tamped to avoid shrinkage. The number of layers of sand and gravel can also vary. The thickness of the pillow is on average from 20 to 40 cm, depending on the size of the foundation and the characteristics of the soil. First, crushed stone is poured into the foundation pit, and then sand is added to fill the voids between the stones. The next stage of work is the pillow device.So that the walls of the pit do not crumble during the installation of the gravel-sand cushion, they must be done with a slope Upon completion, the surface is rammed with a vibrating machine and covered with geotextiles. It is very important to make a excavation strictly under the design mark, trying to ensure that the bottom of the pit is as flat as possible. Since the depth of the foundation is small, this work can be handled manually, but the involvement of technology will significantly simplify and speed up the process. The difference in length should not exceed 2 cm.Ī floating foundation slab may be slightly larger than necessary, but in no case less. ![]() Checking the rectangularity of the shape (and a floating foundation, as a rule, is just a rectangle) is quite easy. Next, you need to mark the base with stakes and cord driven into the ground.Mistakes and negligence can lead to the most sad consequences. This stage should be entrusted to qualified specialists. ![]()
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January 2023
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