Polyethylene pipes hdpe has excellent corrosion and chemical resistance. Over time, the properties of polyethylene pipe is only getting better (the smoothness of the inner surface and an inner diameter of the pipe). Low thermal conductivity of polyethylene pipe for reducing heat loss and reduces the formation of condensation on the outer surface of plastic pipes. Reduce the probability of failure during freezing liquid pipeline, as with the tube does not collapse, but increases in diameter, acquiring former size during thawing of the liquid. Polyethylene pipe has a small weight, which facilitates assembly, especially in cramped conditions. Polyethylene pipes are 5-7 times lighter than steel, so that small movements of the installation does not require the lifting mechanisms and one vehicle can carry 5-7 times more than polyethylene tubes than steel.
Significant reduction in risk of water hammer due to the relatively low modulus of elasticity. Reliability of welds in joints throughout the life of pipelines. Ease of welding. Butt welding much cheaper, easier and takes less time. The possibility of multiple rewiring at low cost. Lower labor costs during installation., Polyethylene pipe – is a reliable shield against microorganisms and bacteria, its inner layer does not give any water contaminants. And as one of the most important factors is the low cost
Jointing plasterboard should be carried out when the room is no change of temperature to avoid deformation drywall sheets. Next, you need to verify the reliability of fastening plasterboard sheets, if necessary, fix any bugs. Before jointing plasterboard sheets should be cleaned from dust, check that all screws were tightened. You should also check the surface of the drywall on the the presence of various defects such as dents, scratches, etc., if any, then they need to be repaired using putty. This should be done as long as the filler can not be compared with the level of a sheet of drywall. After implement all the above described actions, you can begin grouting drywall. Diluted filler in an amount which will be fully utilized during this time, as the plaster has a limited time. When sealing the interior angles of a spatula to push the filler across the seam, carefully rubbing the solution into the gap that the mixture filled the entire thickness of the drywall, then put the reinforcing tape (tape impose convex side against the wall so that the center of its width passed along the joints of gypsum boards) and remove the excess putty. After you how to grab the composition, to produce puttying until such time as absconding reinforcing tape and joint angle becomes equal to the cavity of the drywall.
Product Types of concrete. Companies-producers of concrete products typically specializes in the production of materials for walls, made by vibrocompression; products for the tiling and improvement. The most popular of reinforced concrete products are rings of the well cap the well and foundation blocks. The remaining output is produced by vibration compacting concrete in special forms of followed by solidification. In this way, get different kinds of blocks (septal, wall and air), 3 types of paving slabs ("coil", "brick" and the slab for the tram tracks), 3 types of curbs ("Garden", "road" and "roller"). In addition vypuskaetsyatovarny concrete in a large assortment. Reinforced concrete products are extremely durable.
The fact that the steel used as reinforcement construction, and concrete have the same coefficient of thermal expansion. This makes concrete one of the most durable and reliable materials. The plant manufactures 8 types of foundation blocks of various sizes – from 300mm (width) h580mm (height) h1180mm (length) to 600mmh580mmh2380mm. Ring wells produced 11 species, an outer diameter from 840 to 2200mm and a height of from 290 to 890mm. These reinforced concrete products are used to access devices located below ground pipelines for various purposes. Chastokoltsa wells used for the construction of drains, and sometimes for the construction of pipes. Also products are used as casing device for ordinary wells, dug for water supply companies as well as the private sector. Ready-mixed concrete – is a concrete mixture, which is made with the strictest observance of the production technology and quality control of products.
As you know, the higher the grade of concrete, the greater the burden on compression it can withstand. Concrete marki100 used for device preparation surface for subsequent layer pouring mixed concrete has a higher grade. Mark 200 is used for the blind area, floors and screeds, M300 – for the production of slabs and foundations. Higher grade ready-mixed concrete – is M400, which is used in bridge construction, hydraulic structures, girders and piles. Ready-mixed concrete of higher grades, due to its narrow scope, the factory is not made. The enterprise produces 7 types of concrete, 4 of them – are the main brands (M100, M200, M300, M400), and 3 intermediate (M150, M250, M350). Concrete is delivered to the place of construction work in special concrete mixers mounted on truck. A peculiarity of these mixers is that they work while driving, and not stir until the end of the ready-mixed concrete by the end of trip becomes ready for use. In all cases, to improve product characteristics such as increased strength, ductility, resistance to low temperatures and so forth, the concrete is added to the plasticizer.