The key to success in laying paving slabs on crushed stone is the correct sealing of the base. Therefore, it is necessary to seriously approach the selection of rubble, because for each type of work there are certain selection criteria.
The crushed stone base on the principle of the device is considered fairly simple. It is only necessary to choose the right crushed stone, which will meet all the requirements – and you can put the sidewalk.
In fact, different types of rubble have certain features for which they can be distinguished from each other. The list of distinguishing characteristics includes: fraction, testicle (shape geometry), density and strength, frost resistance, adhesion, radioactivity level and tint.
What material is needed?
There are different diameters of crushed stone, and they all allow you to get a dense, homogeneous and resistant coating. 4 main fractions specified in regulatory documents (GOSTs), but there are also concomitant. Mostly for work use fractions of rubber diameter from 0.5 to 2 cm. If the placed tile is thin, then you can cut off the crushed stone to 1.5 mm.
Stone varies by origin. There are crushed stone from rocks, from ore, secondary or slag. One of the most popular types of rubble for laying the sidewalk is the Dolomite Crusp. It is distinguished by durability, frost resistance, moisture resistance and low temperatures. Limestone has the smallest strength of all materials, however, is often chosen due to low cost. Secondary rubble is obtained from recycled construction trash. Its advantage also lies in a low price. Granite stone does not contain clay or ya impurities. And due to the rough surface, this material has high adhesive properties.
Frost-resistant base prolongs the life of the paving platform to 35-45 years.
Beschy indicates the proportion of flat and mental stones. According to the rules, it should not exceed 15%. With too much, the adhesion of the stones between the stones is reduced with too much, the adhesion of the cement mix increases. For the track, the material 1 or 2 groups of brees will fit.
Besides, Crushed stone varies according to the storage grade (the maximum powerful load in kilograms per square meter). For a small sidewalk laying for travel vehicles (the total weight of the load does not exceed 8 tons) the material of the M600-M800 brand is suitable. For an exceptionally pedestrian walkway, the strength of M300-M400.
And also for crushed stone from granite is characterized by increased radioactivity, while limestone and quartzite natural background is lowered. Radioactivity is confirmed documentary.
To the selection of paving slabs, it should be approached no less serious.
The surface of the material should not have numerous chips, pits or rods.
If you knock on each other’s two tiles of good quality, then there should be a ringing sound. This suggests that the material is well dried.
In addition, tiles can be tried to lose with each other. If they became rough and darkened a little, it is better to give up the purchase of such a coating.
Tile should not have too bright and rich color, as this is evidence of poor quality manufacture. Such a coating quickly cracks and starts crumble.
And, of course, in the store you can always ask the quality certificate for the product.
For that To put the paving pad, you should buy a coating in advance with a reserve of 10-15%. This is explained by the fact that in the process of work it will be necessary to cut tiles to the required size. And there is also a chance that some amount of material will be defective.
Stages of mounting
In the preparation of the grounds includes:
removal of the fertile layer of the Earth (approximately 35 cm);
cleaning absolutely all roots of plants and trees;
Laying pipe for drainage;
High-quality laying of the sidewalk is impossible without detailed preparation of the base.
To build the foundation, the shade of rubble does not play any role, although now there is a whole set of shades. They need to pay attention if the material is used for decorative section design.
In any case, before buying a material, you should carefully read the documents for it.
As soon as the base for work is prepared, you can proceed to the main stages.
Initially, you need to put a pillow of rubble. For this, the base is laid out all the rubbank. After that, the stones need to be aligned and tamped (the thickness of the layer should not exceed 18-20 cm). The seal of the layer should be at least 95%. Turning the rubble base will help the vibrating plate, self-propelled rink or method of construction.
Now you need to install borders (or edging stone). Alternatively, they can be attached to liquid cement-sand or concrete solution.
After installing the side, you can start laying the pre-sliced tile on the rubble base. To align the coating, usually use rubber xy. If the tile does not fit smoothly, it will have to raise it, and again align the base. In addition, for smooth laying tiles use a fishing line. It must be pulled at the desired height of the coating of the sidewalk. It is done both in the longitudinal and transverse direction.
After creating the sidewalk, it is necessary to rush to water. As soon as the coating dried, you should fill the seams between the tiles of fine sand. To do this, use a brush with a rigid bristle. At the end of the work, the sidewalk is once again poured by water from the hose to wash off all the remains of sand, cement mortar and dirt.
Advice! So that the water does not accumulate on the surface of the tile, it should coincide with the top of the curb to the top of the border. And even better to create a bias from the central part to the edges of the track within 0.6-0.8%, with side cuvettes, where water will. Cuvettes should be located at 30-35 cm from the end of the border.
How to perform laying paving slabs on crushed stone, look in the following video.