A water drain can be installed along the curb located on the side of the path slope. Drains can also be located on both sides of the sidewalk.
Crushed stone cushion
Professional builders cover the base prepared for the tiles with geotextile. Then they fill it with crushed stone, maintaining the slope. It is very important to understand what kind of crushed stone is needed for laying paving slabs. It should be a material of fraction from 20 to 40 mm. The thickness of the embankment should be 10-15 cm. The crushed stone layer must be shaped to match the future site or path. So, in addition to the fact that the path will have a slight slope, it can be convex or simply flat.
For greater reliability of the entire structure, sand can ivory coast mobile database poured on top of the crushed stone cushion in a layer of 3-5 cm, and another layer of geotextile can be laid on top with overlaps on the curbs. Thanks to this solution, the crushed stone cushion is isolated from the sand.
Layers of geotextile and crushed stone This may be interesting! In the article at the following link, read about geotextiles for garden paths.
Sand cushion
Sand is poured on top of the second layer of geotextile in a layer of about 5 cm. Geotextile will not allow sand to seep into the crushed stone, which will eliminate the possibility of the tiles subsiding. You can use quarry or river sand.
To understand what kind of sand is needed for laying paving slabs, you should study the differences between these two almost identical materials. Quarry sand is not uniform, it includes grains of different sizes and impurities of different rocks. It is used for many types of construction work, as it has good adhesion (ability to adhere to other materials). However, river sand is more suitable for laying paving slabs, which is more uniform and cleaner. It passes water better and is cheaper than quarry sand.
Sand cushion on geotextile