Cars have long ceased to be luxury. Currently, they are only a means of transportation from one point to another. Changing technology, improving its characteristics allow us to expect a comfortable trip. And no matter how long it lasts. But comfort of movement depends not only on the vehicle. Of great importance in this matter is the quality of the road surface. And serious demands are made on him.
To cover the roads used road plate 2P30-18-30. Its dimensions, weight and other indicators are taken from the standard (GOST21924.0-84). The quality of the materials used for its production is also subject to stringent standards.
Application area
Road slabs 2P30-18-30, the dimensions of which will be indicated below, are elements made of reinforced concrete. They are used in the construction of roads with various traffic. Through the use of reinforced concrete slabs withstand significant loads.
Using these plates, temporary or permanent roads within the city, autobahns, tracks for trams and trains, and highways can be built. The load from vehicles on the road surface should not exceed the values of the coefficients H-10 and H-30. This means that when moving columns of vehicles with a weight of 10 or 30 thousand kilograms, the parameters of road slabs will not change. In other words, this is the permissible maximum load limit on the road surface that the slabs can withstand without being destroyed.
What are the elements
Reinforced concrete slabs for roads are massive structures. To achieve better adhesion of the wheels to the road surface, the plates are coated with corrugation on one side. These grooves are formed at the stage when 2P30-18-30 road slabs are poured. The dimensions of the molds into which the concrete is poured correspond to the dimensions of the finished slabs. At the bottom, they have rhombus-shaped corrugations, the depth of which reaches 1.2 millimeters. Concrete is compacted. Further, its surface is treated with nylon brushes. As a result of such processing, roughnesses form on the surface of the plates.
According to the norms, influxes can cover road plates 2P30-18-30. Their sizes should not exceed fifteen millimeters.
For the production of slabs, only high-quality heavy concrete is used. Reinforcing rods are added to it, interwoven into a mesh. All this is done so that the structure during operation was resistant to high loads.
Plasticizing additives are added to improve resistance to frost and increase moisture resistance. For the same purpose, substances are introduced that draw air into the material. Thanks to these additives, the elements are not damaged in the cold season due to low temperatures, are not destroyed by atmospheric precipitation, and can withstand the heavy weight of passing vehicles. Their characteristics are so high that even previously used boards are suitable for use.
Characteristics of elements of this type allow their use in areas with different climates. Their use will be possible in a wide range of ambient temperatures.
Road plates 2P30-18-30: sizes
Structural elements of the road surface are made with marking 31.75. The indicated marking indicates the dimensions of the finished structure (product length and width). The thickness of the plates is not taken into account. Its decoding is defined as follows:
- The thickness of the plate is 170 millimeters.
- The length of the product is 3 thousand millimeters.
- The width of the structure is 1750 millimeters.
As you can see, road slabs are made in the shape of a rectangle. Their surface is corrugated, with grooves to create a good adhesion of the wheels of vehicles with the surface of the road surface. Each plate weighs 2.2 thousand kilograms. Given the above dimensions, it can be determined that the volume of each product is 0.893 cubic meters.
Due to the high quality requirements of the raw materials used and the finished product, road plates have a long service life. But for this, their installation must be carried out in accordance with the requirements of the priozvoditel and established regulatory documents. Subject to all the necessary requirements during the construction process, the pavement will be of high quality and durable. And this is the key to a pleasant and comfortable movement.