Luoyang Xinben Machinery Equipment Co., Ltd. is located in the beautiful ancient capital of the Nine Dynasties-High-tech Zone, Luoyang City, Henan Province, with superior geographical location and convenient transportation. Founded in 2005, the company specializes in R&D, manufacturing and sales of supporting materials, mining materials and equipment. It has strong scientific research strength and production capacity, diverse sales channels and excellent after-sales service. At present, the main products are: hollow anchor rods, water-expandable anchor rods, ordinary hollow grouting anchor rods, reverse circulation hollow grouting anchor rods, prestressed anchor rods, self-advanced hollow grouting anchor rods, expanding shell hollow grouting anchor rods A series of products such as grout bolts, combined hollow grouting bolts, and pipes.

　　Xinben recommends talking about general cement mortar bolts:

　　1. The construction sequence of general cement mortar anchor rod and hollow grouting anchor rod is different. The construction sequence is that after pile formation, first grouting and then anchor rod installation; hollow anchor rod

　　2. Generally, the cement mortar anchor rod should adopt the threaded steel bar as the anchor rod. The exposed end of the anchor rod should be produced and processed with a standard external thread of 120～150mm, and the standard nut for supporting facilities should be selected; hollow grouting anchor rod

　　3. Concrete mix ratio (mass ratio): concrete: sand: water should be 1:1～1.5: (0.45～0.5), the grain size of sand should not exceed 3mm; hollow anchor manufacturer

　　4. Cement mortar should be used at any time when mixing, the cement mortar mixed once should be used up before initial setting, and the initial setting cement mortar cannot be used;

　　5. The multi-tube grouting process is used. The grouting pipe should be inserted 50-100 mm away from the bottom of the hole. After the grouting is started, the grouting pipe is continuously sent to the bottom of the hole to make the cement mortar squeeze unnecessary water in the hole. The outside of the hole is formed and then pulled out slowly and quickly with the introduction of cement mortar. The working pressure of grouting is not suitable to exceed 0.4MPa;

　　6. Use water to moisturize the grouting tank and pipeline when the grouting is just started or stopped halfway for more than 30 minutes;

　　7. The cement mortar should be inserted into the bolt body immediately after grouting. When the bolt body is inserted into the deep layer of the design scheme, cement mortar must be discharged from the nozzle. If no cement mortar is discharged from the nozzle, the rod should be pulled out and grouted again . The total length of the bonding anchor rod should be grouted and round.

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