Beijing wear-resistant material manufacturer High-strength wear-resistant material manufacturer

High-strength wear-resistant material is a cement-based composite single-component dry mortar, which is prepared through industrial production from high-strength cement, mineral admixtures, high-strength aggregates and anti-cracking and wear-resistant agents. This high-strength wear-resistant material can be used by adding water and stirring on site. It is easy to construct and can form a certain thickness of wear-resistant layer on the surface of the silo or tank through manual plastering. After normal maintenance, it can meet the technical requirements and has wear resistance. High, high bonding strength with base concrete (steel silo), strong impact resistance, high compressive strength, good durability, long service life and other characteristics. High-strength wear-resistant materials are specially used for lining anti-wear layers of slag ditches, mine chutes, coal unloading chutes, lower hoppers, material silos in metallurgy, coal, thermal power, chemical industry, cement and other industries, as well as in water conservancy and hydropower, port terminals and other projects. The anti-wear layer of the floodgate and discharge hopper plays a role in protecting the foundation concrete (or steel silo).
Scope of application
Lining anti-wear layer of slag ditches, ore chutes, silos, etc. in metallurgy and mining systems.
Anti-wear lining of coal unloading troughs, coal hoppers, material silos (including steel silos) in coal systems, thermal power plants, and coking plants.
Cylinders, hoppers, and walls of cement, chemical and other systems are lined with anti-wear layers.
Concrete anti-wear layer in water conservancy, hydropower, ports and wharfs has anti-scouring and anti-wear requirements.
Product Features
High-strength wear-resistant materials have high strength, high wear resistance, impact resistance, erosion resistance, and oil penetration resistance
High-strength wear-resistant materials have good flame retardancy, low water absorption, and resistance to oil penetration. High and low temperature
High-strength wear-resistant materials have good durability and long service life
High-strength wear-resistant materials have the characteristics of simple construction, fast operation and easy to master
High-strength wear-resistant materials have good integrity and are easy to repair , not easy to fall off
The high-strength wear-resistant material is non-toxic, odorless, green and environmentally friendly, and does no physical harm to the operator
High-strength wear-resistant material construction technology
Before the construction of the wear-resistant layer, the silo The original concrete base of the coal unloading chute has been constructed for more than 10 days and has reached the final hardening strength. In order to ensure that the anti-wear layer and the original concrete base are firmly bonded and form an organic whole, the following three necessary process preparations are taken Treat the base layer, lay steel mesh, and apply interface agent.
Base layer treatment
In the treatment of the interface base layer, three main points should be paid attention to
⑴
The rougher the base layer, the larger the interface bonding area, the greater the resultant force, and the greater the ability to resist shear damage. The stronger it is, so the base layer must be chiseled.
⑵
The degree of integrity refers to the degree of damage to the bonding surface. The lighter the damage, the fewer internal defects, and the better the bonding performance. Therefore, any loose parts on the basic surface should be removed.
⑶
The degree of cleanliness and the reduction of impurities are beneficial to improving the bonding strength. Therefore, use pressure water to flush and clean the foundation surface, and there should be no debris such as floating slurry, floating ash, and release agents.
Laying steel mesh
In order to ensure the integrity of the wear-resistant layer and the concrete base, reduce the shrinkage of the wear-resistant layer caused by large-area plastering, increase restraint, and prevent hollowing and cracks, it is necessary to lay the foundation on the surface of the base layer. Buried steel mesh.
Concrete base drilling depth
, hole diameter
Anchorage with steel anchor material
Ф
Reinforcement rod, reinforcement rod burial depth
, exposed
~
(Design the thickness of the wear-resistant layer
/
The spacing between the steel rods
The top of the steel rods is welded into a mesh with
Ф
wire rods .
Apply interface agent
Fully wet the foundation surface one hour before construction, and absorb floating water during construction.
Apply special interface treatment agent evenly on the treated concrete The basic surface must not be missed.
Mixing of high-strength wear-resistant materials
High-strength wear-resistant materials can be stirred mechanically or manually. It is recommended to use a forced mixer for mechanical mixing, which can improve construction efficiency and ensure sufficient and even mixing. , the construction effect is better. The amount of water added on site is

~

Add water and stir. The consistency should be suitable for construction. The mixing position should be as close as possible to the construction position to facilitate the continuous progress of construction. .The time from adding water and stirring to the completion of construction should be controlled within
minutes, so the amount of mixing each time should be ensured to match the construction speed.
High-strength wear-resistant plastering
To be painted When the surface of the interface agent is dry to the touch, use a spatula to apply the high-strength wear-resistant material on the concrete surface. Press hard when applying the first layer of plaster. The thickness of each plaster should not exceed
. When the wear-resistant layer is designed When it is thicker, after the first layer of plaster reaches the initial setting state, the next layer of plaster will be constructed until the designed thickness of the wear-resistant layer.
Calendering of high-strength wear-resistant material
According to climate conditions ,
~
~
hours after the first calendering.
Conservation of high-strength wear-resistant materials
For summer construction, the high-strength wear-resistant material should be covered with wet straw bags or rock wool quilts and watered for maintenance within hours after the construction is completed. After the construction is completed, the high-strength wear-resistant material should be covered with plastic film immediately. , and cover it with a straw bag or rock wool quilt, and take insulation measures. The curing period is
days, and the curing measures should also comply with the relevant regulations in the "Code for Construction and Acceptance of Reinforced Concrete Projects".
Packaging and Storage
High-strength wear-resistant materials are packaged in
/
bags and placed in a dry and ventilated place. The shelf life is
months.