Ningbo national standard high-strength repair mortar factory direct sales

High-strength repair mortar
This product is formulated with a variety of polymer modifiers, rubber powder and anti-crack fibers. It has good construction workability, adhesion, impermeability, crack resistance, and peeling resistance. Excellent freeze-thaw resistance and high strength.
Scope of application
Repair of damaged beams, slabs, columns, stairs and other parts of concrete structures.
Buildings (structures) use plastering, leveling and protective mortar reinforced with high-strength stainless steel stranded wire mesh
Repair of damaged concrete parts in roads and bridges.
Repair and emergency repair of damaged parts of airport runway, highway lane ramp.
Repair and emergency repair of damaged parts of concrete floors in industrial plants.
Construction Features
Convenient construction and good construction and ease performance. There is no need to vibrate during construction and it can be used by adding water and stirring on site.
The early and high compressive strength can maximize the progress of the project.
Strong impermeability and good impermeability. The impermeability of seepage water meets the requirements of concrete's impermeability performance.
Good bonding performance. The use of concrete interface treatment agent to bond with new and old concrete has a bonding strength greater than 100%, which can ensure the tight bonding between the high-strength repair mortar and the repair base layer to the greatest extent.
The high-strength repair mortar that can be applied in winter allows for repairing the horizontal top surface of the concrete structure's facade and outdoor construction when the ambient temperature is above ℃.
Durability: There is no significant change in strength after freeze-thaw cycles. The strength improves after soaking in engine oil for several days.
Product Characteristics

Consistency
Bulk Weight
Compressive Strength
Positive Tensile Bonding Strength



Construction steps and requirements
Prepare necessary tools and maintenance items
Determine the initial repair scope of the repair area should be expanded outward than the actual damage range. Cut or chisel out the initial depth of the vertical edge of the concrete repair area. This prevents the edges of the repaired area from becoming flaked.
Clean the floating dust and oil on the surface of the concrete base in the repair area and remove the loose parts.
Clean the rust and debris on the surface of the exposed steel bars in the repair area.
Chill the concrete base in the cleaned repair area or use a concrete interface treatment agent for interface treatment.
Use an air pump or water to clean the concrete base surface in the treated repair area. No open water should remain during the next process
It is recommended to mix the high-strength repair mortar with the mixing ratio of water (weight ratio). Mechanical stirring can be used for minutes. Manual stirring should be done for minutes to ensure uniform mixing.
The mixed high-strength repair mortar can be plastered. The thickness of plastering should not be exceeded at one time. If the plastering layer is thick, the construction method of layered plastering multiple times should be used.
Since the high-strength repair mortar contains a variety of molecular polymer-modified exudates and rubber powder, the mixed high-strength repair mortar is more viscous than plastering, so the spatula should be kept smooth.
For plasters that require calendering on the surface, the mixture should be slightly diluted and the time should be mastered to utilize the calendering treatment.
It is strictly prohibited to mix any additives or external additives into high-strength repair mortar. The operating temperature is ℃℃
Maintenance
Hours after completion of construction work in summer, water should be watered and sprayed with curing agent or covered with wet straw bags for maintenance and the surface should be kept moist for days.
After the winter construction work is completed, the plastic moldings should be covered immediately and covered with quilts for thermal insulation and maintenance.
Packaging and storage
Packaging specifications/bag.
Store in a ventilated and dry place and prevent direct sunlight. The shelf life is months. It must be re-inspected before use after the shelf life has expired.