GJ-F Resistance Reduction Agent Grounding Resistance Reduction Agent Polymer Lightning Protection Resistance Reduction Agent Physical Resistance Reduction Agent

Description :

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　　1. Pre construction inspection items and requirements:

　　① The drag reducer should be a product of the same brand and model.

　　② The water is clean and free of pollution, and there are no impurities such as sediment in the water.

　　③ The size and shape of the grooves and holes meet the design requirements, with relatively flat walls and no debris inside the holes and grooves.

　　④ The vertical grounding electrode is placed in the center of the hole, and the horizontal grounding electrode is horizontally centered, with a distance of not less than 40mm from the bottom of the ditch and relatively uniform (if necessary, it can be fixed with a thin wire).

　　⑤ The grounding down conductor has been coated with anti rust paint according to the design requirements and has initially set.

　　2. Modulation of drag reducing agent

　　Add water in a weight ratio of 0.4~0.6:1.0 of water to drag reducer and stir thoroughly until a sticky paste is formed. The amount of water used for horizontal grounding should be just enough to wet all the dry powder and stir it into a paste. The amount of resistance reducing agent added to the vertical grounding hole can be adjusted to a higher value depending on the situation. Excessive water addition will prolong the construction time.

　　3. Watering, wrapping, and initial inspection

　　Gently pour the prepared paste like resistance reducing agent into the grounding ditch and hole (to prevent mud, debris, and impurities from mixing into the resistance reducing agent) until it completely covers the grounding electrode without omission. The initial coating thickness should not be less than 40mm, and the walls of the borehole should be full. If it is insufficient, it should be replenished.

　　4. Re inspection and backfilling compaction

　　After the initial setting of the drag reducing agent, a detailed inspection should be carried out to ensure that the surface of the drag reducing agent coating is uniform, sufficient, and free of impurities. The thickness of the coating body should not be less than 40mm in thin areas, and if it is insufficient, the drag reducing agent should be replenished. After checking for accuracy, remove the fixed fine wire, gently backfill with fine soil without hard objects or branches, with a thickness of at least 20mm, and then add other soil and compact it. The compacted backfill soil surface should be slightly higher than the surrounding ground level.

　　5. Requirements for grounding down conductors

　　The grounding down conductor at the surface junction section needs to be coated with 2-3 coats of epoxy asphalt varnish, FVC paint or other durable paint throughout the entire section. The length of the underground section should be such that the part buried with the resistance reducing agent is not less than 20mm, and the length of the upper part on the surface is not less than 30mm.

　　6. Deep well grounding

　　Deep well grounding is sometimes necessary. The depth of a well is usually determined by finding a low resistivity formation or groundwater, usually up to tens of meters. During construction, specialized machinery is used to drill holes with a diameter of 80-150mm. Sometimes, local blasting is required to loosen the surrounding soil and fill it with a drag reducing agent to enhance the drag reduction effect. The grounding electrode is made of steel pipes with drilled holes ranging from 10 to 15mm on all four walls. Inject the prepared resistance reducing agent into the pipe under pressure, and use the wall hole to surround the steel pipe from both inside and outside and fill the entire borehole with the resistance reducing agent.

AfterSalesService :

• Drag reducing agent