Cement mortar anti-corrosion steel pipe

Cement mortar anti-corrosion steel pipe

Cement mortar anti-corrosion steel pipe is a kind of pipe with excellent anti-corrosion performance. It takes the steel pipe as the substrate and coats its inner wall with cement mortar. This anti-corrosion method combines the high strength of steel pipe and the corrosion-resistant properties of cement mortar.

Cement mortar can effectively block the contact between the inside of the pipe and the outside environment, preventing moisture and chemicals in the soil from corroding the steel pipe. It has good durability and stability and can be used for a long time under various harsh environmental conditions.

Cement mortar anti-corrosion steel pipe is widely used in water supply and drainage, petroleum, chemical and other fields, providing a reliable guarantee for pipeline projects. Its construction is relatively easy and the cost is more economical, which is a cost-effective choice of anti-corrosion pipe.

No. 100 cement mortar means that its strength is 100kg/cm2, but now all changed to MPa for the unit, No. 100 corresponds to M10. ratio according to the different raw materials, mortar uses different and different, to the commonly used 42.5 ordinary silicate cement, sand with 100 (M10) masonry mortar as an example: 305kg of cement: sand 1.10m3: 183kg of water. The mortar has M3 grade, M10 grade, and M10 grade.
The mortar has M3, M5, M7.5, M10, M12.5, M15, M20, M25, M30, M40 several kinds of standard.

According to the use of mortar, there are several kinds of masonry, plastering, joints, and the standard has nothing to do. After the cement mortar work is completed, there is a more important process, that is, air-drying. That is, air-drying in a natural state for 2-3 days. The main purpose is to prevent cracks in the cement mortar due to bumps on the way to shipment.

As the steel pipe is filled with concrete, which can absorb a large amount of heat energy, the distribution of the temperature field in the cross-section of the pipe column is very uneven when it suffers a fire, which increases the fire-resistant time of the column and slows down the warming speed of the steel column, and once the steel column yields, the concrete can withstand most of the axial load and prevent the structure from collapsing.

The fire resistance of the combined beams will also be increased because the temperature of the steel beams will be reduced by transferring heat from the top flange to the concrete. Experimental statistics show that: to achieve the first level of fire-resistant 3 hours requirements and steel columns compared to save fireproofing paint 1 / 3 a 2 / 3 or even more, as the diameter of the steel pipe increases, the more savings in paint. High load-bearing capacity, good ductility, superior seismic performance anticorrosive steel pipe is used for: municipal engineering: water supply for high-rise buildings, heat network heating, water works, gas transmission, buried water pipelines. Petroleum: petroleum pipeline, chemical and pharmaceutical industries, printing and dyeing and other industries to transport corrosive media process pipeline. Sewage treatment: sewage treatment discharge pipe, sewage pipe and biological pool corrosion engineering agriculture: agricultural irrigation pipe, deep well pipe, drainage pipe and other networks, corrosion resistance is better than the steel structure is conducive to steel pipe fire and fire folding cement mortar internal anti-corrosion pipeline mixture of cement, sand and water called cement mortar.

Usually said 1:3 cement mortar is with 1 part of cement and 3 parts of sand with, in fact, ignored the water component, generally in the proportion of 0.6 or so, that should become 0.6:1:3 The use of cement mortar, in the construction project, one is the foundation and the wall masonry, used to do the block masonry material binder, such as masonry wool, red brick to use cement mortar; the second is used for indoor and outdoor plastering. Cement mortar in use, but also often mixed with some additives such as micro-foam agent, waterproof powder, etc., in order to improve its ease and consistency. Cement mortar becomes concrete when stones are added to it proportionally. Cement mortar strength means a value in the overall distribution of compressive strength measured by standard test methods at the age of 28d for cubic specimens made and maintained according to standard methods.

The performance of steel components under the action of external forces still have a certain impact. Such as deformation, stability, fatigue resistance, etc. may have an adverse effect. 3. hot rolled steel products, for the thickness and width of this aspect of bad control. We are familiar with the thermal expansion and contraction, due to the beginning of the hot rolled out even if the length and thickness are up to standard, more after cooling or there will be a certain degree of negative difference, this negative difference in edge width the wider, the thicker the thickness of the more obvious performance. Therefore, for large steel, the edge width, thickness, length, angle, and the edge of the steel can not require too precise. Cement anticorrosion is made of ordinary cement and certain thickness of yellow sand, additives, according to the designed ratio, mixed into mortar, through the special construction machinery and equipment, coated to the inner wall of the pipeline, forming a certain thickness of the mortar coating, and after solidification, it becomes the lining.

Cement mortar lining, relying on its own bonding force and the support of the pipe wall, its structure is uniform and dense, hard and solid. If the surface of the mortar is coated with epoxy resin, the roughness coefficient can be further reduced after the passage of water. Cement mortar lining is not only a simple barrier barrier in physical properties, but also protects the pipeline through the chemical properties of cement mortar lining. Generally cement mortar is used for sewage and drainage pipes.

Our company brings you technical answers, product knowledge, anti-corrosion effect, installation process and service life.