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Address: 300 m east of the intersection of Xinhua Road and Xinninhuan in Pingdingshan City
LC-KJ prestressed duct grouting agent
Key words:
Key words:
LC-KJ prestressed duct grouting agent
Classification:
- Product Description
-
ProductsOverview:
LC-KJ prestressed duct grouting agent is a new type of grouting agent product developed by our company's research and development personnel to implement newer bridge regulations. The grouting agent is a new type of admixture composed of inorganic functional materials and organic polymer functional materials. The grouting agent has multiple effects such as high efficiency water reduction, enhancement, plastic preservation, micro-expansion and low bleeding. When mixed into cement, it can not only greatly improve the fluidity of grouting under the premise of low water-binder ratio, but also effectively solve the contradiction between high fluidity and anti-segregation of multi-component, non-uniform mixing systems such as cement and concrete, and greatly reduce bleeding. At the same time, the incorporation of the product can also cause moderate expansion to compensate for the shrinkage of the hardened cement paste or concrete at different times.
TechnologyPerformance:
Low water-glue ratio: water-glue ratio is only 0.26~0.28;
Good fluidity, high strength, no bleeding, no delamination.
Good durability, inorganic grouting material, no aging, no corrosion to steel, durable and strong.
The product has high filling and can be used for one-time grouting construction, and the slurry in the pipeline is dense and seamless.
It is easy to use. The grouting agent can be mixed with 8 ~ 15% ordinary cement to make micro-expansion grouting material, and the recommended dosage is 10%.
Method of use:
Before the slurry is pressed into the pore of the beam body, the slurry pump shall be started to discharge a little slurry from the grouting nozzle to remove air, water and slurry in the grouting pipeline.
When grouting, the curved channel and vertical channel shall be entered from the grouting hole at the lowest point; for the channel set up in upper and lower layers in the structure or member, grouting shall be carried out in the order of first lower layer and then upper layer. The grouting of the same hole shall be carried out continuously and completed at one time. Grouting shall be carried out slowly and evenly without interruption, and the vent hole at the highest point shall be opened and closed in turn to make the vent smooth.
The duration of slurry from mixing to pressing into the channel shall not exceed 40min. The slurry shall be continuously stirred before use and during injection. For the cement slurry with reduced fluidity due to delayed use, the fluidity shall not be increased by adding additional water and shall be discarded.
For horizontal or curved channels, the grouting pressure should be 0.5~0.7M Pa; For super-long channels, the maximum pressure should not exceed 1.OMPa; For vertical channels, the grouting pressure should be 0.3~0.4MPa.
The filling degree of grouting shall reach that the other end of the hole is full and the cement slurry with the same fluidity as the specified fluidity is discharged from the exhaust hole. After the slurry outlet is closed, a stable pressure period of not less than 0.5MPa shall be maintained, and the holding time of the stable pressure period shall be 3~5min. The duct grouting of multi-span continuous prestressed tendons connected by connectors shall be carried out immediately after the prestressed tendons of the connector segments are tensioned, and no continuous grouting shall be carried out after the tensioning of each segment is completed.
Vertical duct grouting shall be carried out from bottom to top, and valves shall be provided to prevent backflow of cement slurry.
Vacuum-assisted grouting, grouting valve and exhaust valve shall be closed at the grouting end during duct grouting. Start the vacuum pump at the slurry discharge end to make the vacuum degree of the tie channel reach -0.08 ~ 0.1MPa and keep stable. Then start the grouting pump to start grouting. During the grouting process, the vacuum pump shall work continuously. When slurry passes through the vacuum end, close the valve leading to the vacuum pump. At the same time, open the slurry discharge valve located above the slurry discharge end and close it after a little slurry is discharged. Grouting work continues to be completed by conventional methods.
Packaging storage:
LC-KJ prestressed duct grouting material is packed in kraft paper woven bag (lined) with net weight of 40 kg/bag.
Store in a dry and ventilated room.
Shelf life: one year.
Safety Guidelines:
This product is non-flammable and explosive. No pollution to the environment, does not contain harmful ingredients that affect human health.
Avoid contact with the skin, must wear gloves, eyes, mask.
If the eye or skin splashes, should immediately rinse with plenty of water, and then immediately seek medical treatment.
After-sales service:
The company has a perfect after-sales service mechanism, at any time to provide users with technical support and on-site service, so that product performance to achieve better results.
DisclaimerStatement：
This manual is for reference only and does not have any guarantee nature. Please test its compatibility in advance..
The use of this product is beyond our control, and we do not assume any responsibility arising from improper use.Please refer to this product manualPlease consult us or your local dealer.
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Customer Service Hotline
Telephone:+86-150-3754-7447
Fax:+86-0375-2210299
E-mail: hplichuangkeji@163.com
Address: 300 m east of the intersection of Xinhua Road and huanghe road in Pingdingshan City
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