JW ultra-high strength non-shrinkage grouting material
JW ultra-high strength non-shrinkage grouting material under the guidance of foreign experts in special engineering materials and the relevant experts of the National Institute of Building Materials, relying on the company's resource advantages to develop a kind of hydraulic dry mortar. It not only has ultra-high flow value, but also has the characteristics of high early strength, no shrinkage, strong bonding force and good fire resistance. It has unique advantages in increasing the overall stability of the fixed body and improving its doping resistance and durability. JW ultra-high strength non-shrinkage grouting material is currently at the leading level in various technical indicators at home and abroad.
L super-value fluidity: under the condition of ultra-low water cement ratio (normal 0.14 0.01 ) , the fluidity ≥ φ300mm can still be guaranteed, even if the working degree reaches 30min, the fluidity can still be guaranteed ≥ φ270mm. Therefore, no matter what kind of complex gap can be fully filled. Plastic superior, simple construction.
L has good early strength, 2h compressive strength is above 20MPa, 24h compressive strength is greater than 40MPa , 3d compressive strength is greater than 55MPa, and 24h flexural strength is greater than 10MPa, which is beneficial to improve the utilization rate of related projects and save costs to a great extent.
L will not shrink, high bonding strength, to meet the various stress transfer, because of the solid expansion of the base material, the material is better controlled in the state of no shrinkage, and the steel grip is greatly increased, to ensure that the anchor bolts and base (steel structure) foundation and the combination of new and old concrete.
L there will be no floating and bleeding phenomenon, which is conducive to the connection between the slurry surface and the construction monomer.
Use methods and precautions:
L preparation work: the surface to be poured must be cleaned, degreasing and decontamination must be carried out, and the surface must be pre-wetted to a saturated state.
L template production: the template should be stable and firm, and can resist lateral pressure, no slurry leakage phenomenon, it is best to use mold release agent on the template, non-shrinkage grouting material in use fixed water-material ratio, it is best to use mechanical stirring. During manual mixing, it is necessary to stir evenly with force, and the stirring time shall not be less than 5 min, otherwise the fluidity of the material will be affected. The faster the watering, the better. It cannot be placed for too long. The air input is very important to remove the mixing during watering. If necessary, a vibrator type exhaust pipe can be installed.
L non-shrinkage grouting material should be maintained in time on the 7th, not soaked in water, it is best to use wet bag maintenance or maintenance agent maintenance, construction and maintenance humidity shall not be less than 0 ℃.
Scope of application:
It is suitable for all kinds of grouting without shrinkage. It is mainly used for secondary grouting 1. anchor bolts and machine bases of large equipment and precision equipment, anchor nail grouting, bridge support cushion foundation, joint between old and new cement, window cabinet installation, etc. Especially, the grouting of high-speed railway track foundation in China is a very good material at present. The scope of application is very wide.
Packaging and storage:
Packed with lined moisture-proof plastic woven bag, net weight 50Kg. Store in a dry and cool environment, shelf life of 6 months, open the bag after a one-time use.