Warm Tips for using grouting and mixing pump
1. The joint grouting material is suitable for the ambient temperature between 5 and 35 degrees. In this temperature range, the temperature of the grouting material and the mixing water meet the corresponding requirements. Since the grouting material is stirred with water, the operating time is 60 minutes.
2. When the temperature is higher than 25 degrees, the grouting material should be stored in a ventilated, dry, cool place. During transportation, care should be taken to avoid prolonged exposure to sunlight.
3. On sunny summer days, the surface temperature of prefabricated components is much higher than the temperature due to sunlight. When the surface is 30 degrees, cooling measures should be taken in advance.
4. The mixing water temperature should be controlled below 20 degrees, and it must not exceed 25 degrees.
5. The mixer and grouting pump should be stored in a cool place as much as possible. Before use, use water to cool and moisten. Avoid direct sunlight while stirring.
6. Construction of half-grouting joints, insert the exposed steel bar on one side of the connected component into the sleeve grouting end of another component, grouting the grouting end of the sleeve, and complete the connection of the joint grouting end. When the steel bar to be connected is inserted into the grouting cavity of the connecting sleeve, the minimum anchoring length of the joint should be at least reached.
7. Use a grouting gun or irrigation pump to grout the sleeve. The manual grouting gun is needle-shaped, and the mortar is pressed into the inside of the joint by manpower, which is suitable for grouting one or a few joints one by one. The electric grouting pump is suitable for adopting the joint cavity type to multiple The joints are grouted together. The grouting hole and the discharge hole should be sealed immediately after the mortar overflow hole of the sleeve.
8. When encountering special circumstances such as a power outage, a manual grouting gun or manual grouting pump can be used for emergency construction. The electric grouting pump and manual grouting pump shall be cleaned in time after grouting to prevent the mortar from solidifying and blocking the pipeline.
When multiple groutings are connected, in order to prevent the connecting cavity from filling during the grouting process
The following procedure should be followed:
a First, open all grouting ports and plug all the holes;
b Grouting from the joint grouting port located in the middle of either side (disabling both grouting ports at the same time).
c When a specific grouting port overflows the mortar, the plugging is promptly performed. After all the grouting ports are plugged in, the plug holes are opened at the same time. The
d One by one, block the plug hole of the overflow mortar and stop the grouting when all the sleeve holes have mortar overflow. 10. When the connecting cavity is too long and the pressure in the cavity is too large to cause the joint mortar to be fully filled, the grouting port of the joint to which grouting has been completed shall be blocked first, and then single grouting shall be performed for the unfinished joint until the mortar is Discharge port overflows. 11. In accordance with the site inspection regulations, use the same batch of grouting material as the on-site test block and place it in close proximity to the components. When the test block that is maintained in the same period as the grouting component reaches the strength of the molding, the mold can be removed. After the template is removed, the test block is raised to the age of water. Within 4 days after grouting, the components are not subject to vibration.
12. After the grouting pump is completed, immediately wash the mixer, grouting pump, and grouting pump tube with water.
13, Shanghai Baosheng grouting material is 25kg bag, factory shipment inspection report accompanying the product (report provides the product of the water rate parameter), storage should be ventilated and dry place and prevent direct sunlight, the shelf life of 90 days. Exceeding the warranty period should be re-inspection, re-examination can still be used.
14. The grouting sleeve is packaged in cartons, and the packaging is bundled with the product certificate at the time of delivery, indicating the specifications, quantity, batch number, and implementation standards. The grouting sleeves must be stored in a waterproof and rainproof environment.