Cement mortar coating anti - corrosion steel pipe
100 cement mortar refers to its strength is 100kg / cm2, but now all changed to MPa units, and 100 corresponds to M10. Mixing ratio is different according to the different raw materials, mortar uses different to the common 42.5 ordinary Portland cement, sand with 100 (M10) masonry mortar as an example: cement 305kg: sand 1.10m3: water 183kg. The mortars are labeled M3, M5, M7.5, M10, M12.5, M15, M20, M25, M30, M40 several. Mortar points by masonry, plaster, seams, and label has nothing to do. Cement mortar work is completed, there is the most important one process, that is, air-dry. Refers to the natural state in the air-dry 2-3 days. Mainly to prevent the way in the shipment due to turbulence caused by cement mortar cracks!
As the steel pipe filled with concrete, can absorb large amounts of heat, so the fire column section of the temperature field distribution is uneven, increasing the column of the fire time, slow down the steel column heating rate, and once the steel yield, concrete Can withstand most of the axial load, to prevent structural collapse. The fire resistance of the composite beam will also increase as the temperature of the steel beam will reduce the heat transfer from the top flange to the concrete. The experimental statistics show that: to achieve a fire-resistant requirements and 3 hours compared to the steel column can save fire-resistant coating 1/3 of a 2/3 or even more, with the pipe diameter increases, save more paint.
Bearing capacity, good ductility, seismic performance
Anti-corrosion steel pipe used for: municipal works: for high-rise building water supply, heating network heating, water works, gas transmission, buried water and other pipelines. Petroleum: oil pipeline, chemical and pharmaceutical, printing and dyeing industries such as corrosive medium transport pipeline.
Sewage treatment: sewage treatment, sewage pipe and biological pool anti-corrosion engineering Agriculture: agricultural irrigation pipe, deep well pipe, drainage pipe network, corrosion resistance is better than steel structure is conducive to fire resistance and fire prevention of steel pipe
Cement mortar anti-corrosion pipeline:
Cement, sand and water mixture called cement mortar. Commonly referred to as 1: 3 cement mortar is a cement and 3 sand with, in fact, ignoring the water composition, generally about 0.6 ratio, that should be 0.6: 1: 3 use of cement mortar in the construction , One is the foundation and wall masonry, used as block masonry materials, adhesives, such as puzzle stone, red brick to use cement mortar; Second, for indoor and outdoor plastering. Cement mortar in use, but also often mixed with some additives such as micro-foam agent, waterproof powder, in order to improve its workability and viscosity. Cement mortar in proportion to join the stone, it becomes concrete. The term "strength" refers to a value in the overall distribution of compressive strength measured on a 28-day-old cube specimen prepared and maintained in accordance with the standard test method. In this case,
The equipment includes steel pipe shot blasting machine, three PE winding equipment, PE pipe black and yellow jacket extubation machine, sandblasting derusting equipment, polyurethane low pressure generator, foaming platform, glass fiber winding machine, two PE coating, cement Mortar spraying machines and other anti-corrosion insulation supporting testing equipment. The company can undertake single layer and double layer fusion bonded epoxy powder (FBE), double layer polyethylene (2PE) and three layer polyethylene (3PE), double layer polypropylene (2PP) (3PP), epoxy coal tar pitch steel pipe anticorrosion, polyurethane prefabricated direct buried thermal insulation pipe, black and yellow jacket insulation pipe, IPN8710 polymer anticorrosive coating anticorrosion, epoxy resin anticorrosive pipe, high density polyethylene anticorrosion pipe, cement mortar lining anticorrosion, Prefabricated pipe insulation and other anti-corrosion projects. Implementation of SY / T0447-96; GB50268-97; CECS10: 89; DIN30670, DIN30671, SY / T0413-2002, SY / T0315-97 standards. The company regards the product quality as the life of the enterprise, has established the consummation quality guarantee system, has passed the ISO9001: 2000 authentication, we carry on the quality tracking control from raw material, derusting, coating to the whole process of leaving the factory. Improve the quality management system and advanced testing equipment to provide users with quality products to provide reliable guarantee.
Steel components in the external force under the performance or have a certain impact. Such as deformation, stability, anti-fatigue and other aspects may have a negative effect. 3. Hot-rolled steel products, for the thickness and width of this area is not good control. We are familiar with the thermal expansion and contraction, because the beginning of hot rolling even if the length and thickness are standard, and finally after cooling or there will be some negative difference, the wider the negative margin width, the thicker the performance of the thicker the more obvious. So for large steel, the width of the steel, thickness, length, angle, and the edge line can not ask too precise.
