720W Hochdruck-Vergusspumpe Perfusion Grouting Machine von Betonleck 10000pai

Product name: high pressureperfusion machine

Rated power: 720W

Voltage / Flat Rate: 220v AC / 50Hs

Maximum output pressure: 10000pai

Start again: 7500pai

The maximum pressure of high pressure pipe is 10000pai

Switching valve safety range:18000pai

Delivery flow: 0.75 kg/ min

High-pressure perfusion machine construction plan process:

Concrete building concrete, stone cracks, cracks, and pores are the main causes of damage to Iconcrete buildings. Leakage of crack pores is the most headacheproblem, because the cracks inthe concrete are completely irregular. Generally, the traditional method of plugging is to dig opencracks or water leaks to plug the surface, but the result is often to block the area, where it beginsto leak again. Because water can move irregularly in the internal cracks of concrete, it seeps fromrelatively weak parts.

Adopting chemical groutingmethod. It is the use of mechanical high-pressure power(high-pressure pouring machine) to inject chemical grouting materials into concrete cracks. Whenthe slurry encounters the water in the concrete cracks, it will quickly disperse, emulsify, expand,and solidify. The depth is related to the width of the fracture: the wider the fracture, the greaterthe flow velocity of the slurry, the deeper it enters the fracture, and the better the grouting effect.The initial swelling rate of water-soluble polyurethane can reach 100%. After the gel is formed,the first swelling disappears, but it has good elasticity and becomes a stable elastomer similar towater-stop rubber. In this way, the consolidated elastomer fills all cracks in the concrete andcompletely blocks the water flow outside the concrete structure to achieve the purpose ofstopping water and leaks.

Cracks larger than 0.2mm are grouted with water-soluble polyurethane slurry; cracks smallerthan 0.2mm are sealed with epoxy resin (for dry joints: sealed with modified epoxy resin basefluid; for wet joints: Water-soluble polyurethane grouting may be used, and the modified epoxyresin base liquid will be used to seal and reinforce after water-stopping and drying. The cracksthat are dfficult to grouting will be sealed with . plug-stopping" to stop the water and thensealed with modified epoxy resin base liquid after drying. ). Note: After water-basedpolyurethane grouting, depending on the specific situation, then decide whether to carry outmodified epoxy resin grouting.

The advantages of chemical grouting waterproof plugging construction:

Water-soluble polyurethane chemical grouting material is a low-viscosity, single-componentsynthetic polymer polyurethane material in the form of a slurry, which has the characteristics ofcross-linking reaction with water and foaming to form a multi-layered closed elastomer. When itis injected with high pressure into the concrete crack structure and extends until all the gaps arefilled (including 0.015mm micro-slits that are invisible to the naked eye), when it encounterswater (water injection), a large amount of carbon dioxide gas is released along with thecross-linking reaction, resulting in secondary osmotic pressure. High-pressure thrust andsecondary osmotic pressure again press the elastomer into and fill all the gaps to achieve thepurpose of stopping leakage.

Construction technology of waterproofing and plugging by chemical grouting

High-pressure chemical grouting plugging construction should be carried out by a professionallytrained construction team with professional construction equipment.

1. Cleaning: Check and analyze the leakage situation in detail, and determine the position andspacing of the grouting holes. Clean up the area that needs to be constructed, and remove theprecipitates on the concrete surface to ensure that the surface is clean.

2. Drilling: Use a dilling tool to drill pressure relief holes around the hole. The diameter of thedrill bit is 14mm. The dilling angle should be = 45 " . The dilling depth 2/3 of thestructural thickness. The dilling must obliquely pass through the main leakage hole. However, itis not allowed to penetrate the structure, because the dust in the larger holes of the movingwater will be washed away by itself. The slow penetration of the wall surface is to drill plumblossom holes on the seepage surface. Rinse the grouting hole with a washing machine until thegrouting hole is clear, then you can proceed to the next step.

3. Buried mouth: Observe the pressure of the main leak hole. When the water flow is not urgentand the pressure is not large, the quick-drying plugging agent can be used to bury the groutingwater-stopping needle. After the structure is stable, re-drill the wooden wedge and install theexpansion water stop needle). When the structure reaches a certain strength and there is noleakage, the other drain holes are respectively installed with expansion water stop needles, andtightened with a special allen wrench, so that there is no gap between the grouting nozzle andthe drill hole, and there is no water leakage. The slow penetration of the wall is also installedwith expansion water stop needles in turn. The water leakage points are installed with 25CM,10CM and 8CM water stop needles according to different levels, so that the grouting can becompletely densely grouted from the deep layer to the surface layer. Block all holes and gaps.

4. Grouting: Use high-pressure grouting machine to test the pressure, not exceeding thecompression range of the concrete structure. Pouring chemical grout into the grout hole. Thesingle holes are continuously performed one by one. When the adjacent hole starts to grout, keep the pressure for 3 to 5 minutes to stop the grouting of this hole and change to the adjacentgrouting hole. After all the holes are flled, return to the first grouting hole and grout again toensure maximum pressure. The grouting sequence of the wall is from bottom to top; after all theholes are flled, it is also returned to the first grouting hole and refilled once.

5. Dismantling the mouth: 24 hours after the grouting is completed, you can remove or knock outthe exposed grouting nozzle after confirming that there is no leakage. Clean up the groutingliquid that has solidified and spilled.

6. Reinforcement: Use leak-proof cement-based permeable crystalline compressive sealant forfull plugging or rigid RG materal to wipe the surface for protection layer reinforcement, andfinally use polymer JS waterproof coating, which will be applied three times for surfacewaterproof treatment. (uitable for overall plugging, for reference only)

Scope of application: plugging with water and pressure, subway, tunnel, pump room, storage tank,sewage tank, underground civil air defense tunnel, basement garage plugging, cable trench,culvert, dam, power plant dam, acid (alkali) pool plugging Leakage, cooling tower plugging, mine,elevator shaft, underground rock foundation anti-seepage, leak-proof, plugging， concreteengineering cracks, expansion joints, construction joints, structural joints grouting sealingplugging, external wall waterproof plugging.

Grouting plugging technology: no grooving, will not damage the structure, and can beconstructed with water and pressure, fast time, can be constructed on both sides, is your bestchoice for plugging.