Year1
- 包装：
- 牛皮纸袋包装
- 用量：
- 60-80kg/平方米
- 规格：
- 50kg/袋
High-strength wear-resistant material is a cement-based composite single-component dry mortar, which is industrially produced from high-strength cement, mineral admixtures, high-strength aggregates and anti-cracking and wear-resistant agents. Formulated. 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
High-strength wear-resistant materials are non-toxic, odorless, green and environmentally friendly, and will not cause physical harm to operators
High-strength wear-resistant materials 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 a day 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: base treatment, Laying steel mesh and applying interface agent.
, Base layer treatment
Three main points should be paid attention to when treating the interface base layer: (1) Roughness. The rougher the base layer, the larger the interface bonding area, the greater the resultant force, and the stronger the ability to resist shear damage, so it is necessary to The base layer is chiseled. ⑵The 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. ⑶Cleanliness, reducing impurities, and conducive to improving 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, on the surface of the base layer Reinforcement mesh needs to be buried.
The concrete base is drilled deep, and the hole diameter is anchored with steel bar anchoring material Ф steel bars. The steel bar burial depth is exposed ~3 (/3 of the designed anti-wear layer thickness), and the spacing between steel bars is 3. The top of the steel bar is anchored with Ф wire rods. Welded into a mesh.
Apply interface agent
Fully wet the foundation surface one hour before construction, and absorb floating water during construction.
Apply the special interface treatment agent evenly on the surface of the treated concrete foundation without leaving any traces.
, High-strength wear-resistant material mixing
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, ensure sufficient and even mixing, and achieve better construction results. The amount of water added on site is 3 ~ Add water and mix. The consistency should be suitable for construction. The mixing position should be as close as possible to the construction location 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.
, Plastering with high-strength wear-resistant material
When the surface of the interface agent to be applied is dry to the touch, use a spatula to apply the high-strength wear-resistant material on the concrete surface. Use force when plastering the first layer. Press. The thickness of each plastering should not exceed. When the wear-resistant layer is designed to be thicker, after the first layer of plastering reaches the initial setting state, the next layer of plastering should be constructed until the designed anti-wear layer thickness is achieved.
Calendering of high-strength wear-resistant materials
According to climate conditions, calendering treatment will be performed after ~ hours when the high-strength wear-resistant materials are close to initial setting. The calendering process is very important, as it can reduce the roughness of the surface of the anti-wear layer, which is conducive to smooth material discharging and no material clogging. If the construction thickness is large, plastic cracks are prone to occur, so a second calendering treatment must be performed ~ 6 hours after the first calendering.
Maintenance of high-strength wear-resistant materials
For summer construction, the high-strength wear-resistant materials should be covered with wet straw bags or rock wool quilts and watered and cured within hours after the completion of construction. For winter construction, immediately after the construction is completed, it should be covered with plastic film, covered with straw bags or rock wool quilts, and heat preservation measures should be taken. The curing period is days, and the curing measures should also comply with the relevant provisions in the "Code for Construction and Acceptance of Reinforced Concrete Projects".
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