CN109206078A - A kind of grouting material with reduction ground resistance function - Google Patents
A kind of grouting material with reduction ground resistance function Download PDFInfo
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- CN109206078A CN109206078A CN201710542462.XA CN201710542462A CN109206078A CN 109206078 A CN109206078 A CN 109206078A CN 201710542462 A CN201710542462 A CN 201710542462A CN 109206078 A CN109206078 A CN 109206078A
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- grouting material
- ground resistance
- resistance function
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/90—Electrical properties
- C04B2111/94—Electrically conducting materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Foundations (AREA)
Abstract
The invention belongs to Electric Power Capital Construction industrial application field of material technology more particularly to a kind of grouting materials with reduction ground resistance function.The parts by weight of raw material are as follows: 40-60 parts of quartz sand, 30-50 parts of cement, 5-10 parts of rubble, 5-10 parts of flyash, 3-5 parts of graphite, 3-5 parts of carbon fiber, 2-3 parts of water-reducing agent, 3-5 parts of swelling agent, 2-3 parts of accelerator, 2-3 parts of corrosion inhibitor.The grouting material comprehensive performance is superior, can satisfy foundation construction intensity requirement condition, and can will reduce ground resistance, thunder-lightning, without ground pile driving construction is conductively connected again, human and material resources are saved, while reducing cost, can be successfully applied in the wind power generation stepped foundation construction for waiting power equipments.
Description
Technical field
The invention belongs to Electric Power Capital Construction industrial application field of material technology, more particularly to one kind to have reduction ground resistance function
The grouting material of energy.
Background technique
With a large amount of construction of China's expanding economy and infrastructure, the installations of the various large scale equipments of power industry by
Year is incremented by, so that the demand of grouting material greatly increases.The especially higher wind power generating set of cost, infrastructure building
Material must be able to ensure the use of its intensity, and wind power generating set is high-rise buildings, more demanding to lightning protection, and then to electricity
Power Equipment Foundations propose higher performance requirement with grouting material.The most important index of grouting material quality is intensity and durable
Property, grouting material, in occupation of critical positions, is the important guarantee factor of engineering safety, durability in grouting material Structural Engineering,
It is mainly characterized by that usage amount is big, speed of application is fast.
Currently, most common grouting material mainly has cement-based grouting material and chemical grouting material, but both exist
Certain drawback: the volume contraction of cement-based grouting material is larger, and strength development is slow, and durability is poor, influences structural stability and makes
Use the service life；Chemical grouting material is substantially more expensive, and has a degree of toxicity, and environment easy to pollute simultaneously may jeopardize the mankind's
Health.Existing non-shrinkage cement-based grouting material performance compared to more excellent, it be using cement as substrate, it is appropriate be added it is natural high
The dry-mixed material of the compositions such as intensity aggregate, concrete admixture has high fluidity, early strong, high-strength, microdilatancy after adding water mix
Etc. characteristics.It is widely used in the back-grouting of Equipment Foundations, the grouting of steel structure column basis, the small gaps such as track foundation bonding fills
Slurry, subway, tunnel, underground engineering backhander method construction joint build-in, the reinforcing of foot bolt fastening, beams of concrete, column, plate, wall are repaired
Supplementary irrigation slurry, other normal concretes are difficult to the irregular dead angle being poured, corner and concrete porosity supplementary irrigation reparation etc..Cement fineness
Not only there is important shadow to physical and mechanical properties such as the setting time of cement, cement mortar strength, consumptive use of water normal consistence, the heats of hydration
It rings, and the intensity to grouting material, shrinkage and anti-crack property and durability etc. also have a major impact.But nothing currently on the market
Shrinkage cement-based grouting material crack resistence performance is bad, as long as not occurring various cracks, patcher in construction at any time with caution
It not only takes a lot of work material, and due to the requirement of wind-driven generator lightning protection, however existing commercially available grouting material is unable to satisfy
Conductive demand.
In conclusion exploitation ungauged regions, intensity is high and applies in conjunction with the actual demand of the power industry to grouting material in China
Simple, at low cost, environment protection health the grouting material with reduction ground resistance function of work is the task of top priority.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of grouting material with reduction ground resistance function, the grouting material is comprehensive
Superior performance can satisfy foundation construction intensity requirement condition, and can will reduce ground resistance, thunder-lightning, without being led again
Electrically grounded pile driving construction, saving human and material resources, while cost is reduced, wind power generation stepped equal power equipments can be successfully applied to
In foundation construction.
To achieve the purpose of the present invention, the present invention provides a kind of with the grouting material for reducing ground resistance function, various originals
The parts by weight of material are as follows: 40-60 parts of quartz sand, 30-50 parts of cement, 5-10 parts of rubble, 5-10 parts of flyash, 3-5 parts of graphite,
3-5 parts of carbon fiber, 2-3 parts of water-reducing agent, 3-5 parts of swelling agent, 2-3 parts of accelerator, 2-3 parts of corrosion inhibitor.
The partial size of the quartz sand is 0.5-1mm, bulk density 1.2t/m3。
The partial size of the rubble is 5-10mm.
The carbon fiber is asphalt base carbon fiber；The cement is electroconductive cement；The graphite is electrically conductive graphite.
The water-reducing agent is commercially available common Amino-sulfonic Acid-based Water-reducer, naphthalene series high-efficiency water-reducing agent or lignin
Sulfonates water-reducing agent；The swelling agent is one of calcium sulphoaluminate or calcium oxide or combination；The accelerator is silicon
Sour sodium, potassium aluminate or calcium aluminate；The corrosion inhibitor is commercially available common alkamine corrosion inhibitor.
The grouting material the preparation method comprises the following steps: above-mentioned each raw material component is matched in parts by weight, at normal temperatures and pressures
Physical agitation mixing is carried out, after mixing evenly, pack packaging, as finished product.
The application method of the grouting material are as follows: be this field around tower bottom in wind-force hair tower foundation steel construction
Common wind-driven generator metal tower；Concrete foundation and rock anchorage base are equipped with below tower；The concrete foundation
Cylinder cushion cap including having foundation ring passes through cylinder cushion cap below cushion cap from along ground vertical direction when cylinder bearing platform construction
Rock in be drilled with deep hole, it is a that the deep hole around cylinder cushion cap be evenly distributed with 30-40, and the deep hole includes straight hole and reaming,
Hole bottom distance aperture is 5-20m, and the aperture of the straight hole is 200mm or so；The rock anchorage base includes base expanding and base expanding anchoring pile, institute
The base expanding and base expanding anchoring pile stated, which includes deep hole, be placed in reinforcing bar or steel strand wires that deep hole interior diameter is 50mm or so and the present invention has reduces
The grouting material of ground resistance function, distance is at least 1 meter between two neighboring deep hole；The grouting material is stirred with a certain amount of water
After mixing uniformly, remaining hole in deep hole except reinforcing bar or steel strand wires is filled up.
The steel strand wires are steel strand wires made of the steel wire strand process to comply with the national standard requirements；Preferred steel strand count
It is 5 strands, diameter is the steel strand wires of 15.2mm；Described preferred 400mm of reaming base expanding and base expanding bore dia or so, base expanding and base expanding hole are highly preferred
800mm or so.
Compared with prior art, beneficial effects of the present invention.
Grouting material defined by the present invention can be applied to power equipment infrastructure, especially be up to tens of rice, tuple
Ten tons wind power generation stepped, if its foundation construction is insecure, existing defects will generate huge economic loss, exist simultaneously not
The security risk that can be controlled；Grouting material durability and intensity defined by the present invention are preferable, mobility and rate of set when construction
It is easy to control, raw material is few, and from a wealth of sources, production cost is low；Wherein, the addition of quartz sand can increase the intensity of cement, hence it is evident that
Improve corrosion resistance；Rubble can play the role of stabilizing cement, but only add the mixture water requirement of rubble larger, drying shrinkage
Greatly, it constructs under summer high-temperature drought condition and crack easily occurs, therefore the flyash with conductive effect is added simultaneously, it can
Improve the workability of cement and rubble, reducing heat of hydration temperature rise has remarkable result, adding coal ash, after grouting material can be improved
Phase intensity, the activity of flyash and spheric granules surface are smooth, and frictional resistance between aggregate can be reduced in water is steady, and corresponding reduce is mixed
Object water consumption is closed, and flyash makes grouting material that a part of heat also occur while generating intensity, but amounts to very little, to rise
To the effect for reducing thermal cracking；The use of flyash has both handled the waste of power plant's excretion, has saved land resource, reduces
Pollution to environment, and reduce project cost；The electric conductivity of electrically conductive graphite is 100 times higher than general nonmetallic ore, conductive stone
Ink can conduction be because each carbon atom and other carbon atoms only form 3 covalent bonds in graphite, each carbon atom is still protected
1 free electron is stayed to transmit charge；Carbon fiber is strip, and conductive area is larger, and electric conductivity is better than graphite, with graphite
Merge and use, enhances the conductive effect of the grouting material；Accelerator then can be material and form slurry in a very short period of time and agglomerate
At crystal structure, increase its initial structural strength；On the one hand by forming protective film in rebar surface, aggressivity is isolated in corrosion inhibitor
Ion reaches rebar surface, on the other hand by generating precipitating with the hydrated product reaction in concrete, improves concrete compaction
Degree.The two complements each other, and plays the role of delaying reinforcement corrosion jointly or reduces reinforcement corrosion rate.Since wind-driven generator is anti-
Thunder grounding requirement, existing commercially available grouting material are unable to satisfy the need of the reduction ground resistance of each power equipment basis material therefor
It asks, and grouting material of the present invention can reduce ground resistance, thunder-lightning, without ground pile driving construction is conductively connected again, save manpower, object
Power, while cost is reduced, it can be successfully applied in the foundation construction of wind power generation stepped equal power equipments.Grouting material of the invention
It can produce at normal temperatures and pressures, simple production process, raw material are cheap and easy to get, have superior performance, overall economics benefit
The advantages that good.
Detailed description of the invention
Fig. 1 uses the rock anchorage base schematic diagram of grouting material of the present invention.
In attached drawing: 1 is basic ring, and 2 be cylinder cushion cap, and 3 be straight hole, and 4 be base expanding and base expanding anchor bolt, and 5 be conductive grouting material part, 6
For reaming.
Specific embodiment
With specific embodiment, the present invention will be further described below.
Embodiment 1.
A kind of grouting material with reduction ground resistance function, the parts by weight of various raw material are as follows: 60 parts of quartz sand, water
45 parts of mud, 10 parts of rubble, 10 parts of flyash, 5 parts of graphite, 3 parts of carbon fiber, 3 parts of Amino-sulfonic Acid-based Water-reducer, sulphur aluminic acid
5 parts of calcium, 2 parts of sodium metasilicate, 2 parts of alkamine corrosion inhibitor.
The Amino-sulfonic Acid-based Water-reducer, which is purchased, makes every effort to achieve Lear Science and Technology Ltd. in Henan.
The alkamine corrosion inhibitor is purchased in the industrial concrete admixture Co., Ltd of Beijing marial rocks, model YJ-
R505。
The grouting material the preparation method comprises the following steps: above-mentioned each raw material component is matched in parts by weight, at normal temperatures and pressures
Physical agitation mixing is carried out, after mixing evenly, pack packaging, as finished product.
The application method that the present invention is introduced illustrates grouting material of the present invention answering in construction just for the sake of clearer
With all to be belonged in Electric Power Capital Construction field using grouting material of the invention as just a kind of application method of the invention
Protection scope of the present invention.
Using the infrastructure schematic diagram of grouting material of the present invention, Fig. 1 is seen.The application method of the conduction grouting material are as follows:
It is the common wind-driven generator metal tower of those skilled in the art around tower bottom when wind-force sends out the construction of tower foundation steel；?
Concrete foundation and rock anchorage base are equipped with below tower；The concrete foundation includes the cylinder cushion cap 2 with foundation ring 1,
It is drilled with deep hole in the rock below cushion cap across cylinder cushion cap 2 from along ground vertical direction when cylinder cushion cap 2 is constructed, it is described
Deep hole is 40 uniformly distributed around cylinder cushion cap, and the deep hole includes straight hole 3 and reaming 6, and hole bottom distance aperture is 15m, described
The aperture of straight hole 3 is 200mm；The rock anchorage base includes base expanding and base expanding anchoring pile 4, and the base expanding and base expanding anchoring pile 4 is placed in deep hole hole, is expanded
Bottom anchoring pile 4 includes the reinforcing bar that diameter is 50mm, and the slotted section in base expanding and base expanding hole is mixed with grouting material 5 and a certain amount of water of the invention
It closes object to fill up, distance is 1 meter between two neighboring deep hole.
Reaming base expanding and base expanding bore dia 400mm, the base expanding and base expanding hole height 800mm.
Embodiment 2.
A kind of grouting material with reduction ground resistance function, the parts by weight of various raw material are as follows: 40 parts of quartz sand, water
30 parts of mud, 5 parts of rubble, 5 parts of flyash, 4 parts of graphite, 4 parts of carbon fiber, 3 parts of naphthalene series high-efficiency water-reducing agent, 4 parts of calcium oxide, calcium aluminate
3 parts, 2 parts of alkamine corrosion inhibitor.
The naphthalene series high-efficiency water-reducing agent, which is purchased, makes every effort to achieve Lear Science and Technology Ltd. in Henan.
The alkamine corrosion inhibitor is purchased in the industrial concrete admixture Co., Ltd of Beijing marial rocks, model YJ-
R505。
Embodiment 3.
A kind of grouting material with reduction ground resistance function, the parts by weight of various raw material are as follows: 48 parts of quartz sand, water
50 parts of mud, 9 parts of rubble, 9 parts of flyash, 3 parts of graphite, 5 parts of carbon fiber, 3 parts of ligno-sulfate based plasticizer, 2 parts of calcium sulphoaluminate,
3 parts of calcium oxide, 2.5 parts of potassium aluminate, 3 parts of alkamine corrosion inhibitor.
The ligno-sulfate based plasticizer, which is purchased, makes every effort to achieve Lear Science and Technology Ltd. in Henan.
The alkamine corrosion inhibitor is purchased in the industrial concrete admixture Co., Ltd of Beijing marial rocks, model YJ-
R505。
1, grouting material of the present invention reduces ground resistance test detection.
Test objective: measuring common grouting material and grouting material of the invention reduces ground resistance data comparison.
Experimental group: wind is carried out in alpine rock area using the grouting material of embodiment 1-3 construction method according to the invention
Power sends out the construction of tower foundation steel；Control group: it is applied using existing grounding technology in alpine rock area wind-force hair tower foundation steel
Work is equipped with 15 meters of long reinforcing bars and commercially available common grouting material in base expanding and base expanding anchor hole；Specific measurement data is as shown in table 1.
1 test measurement tables of data of table.
Conclusion (of pressure testing): 130 Europe of ground resistance resistance value of any grouting material or so is not added；Commercially available common grouting material is perfused
Afterwards, ground resistance resistance value is reduced to 90 Europe or so, improves resistance reducing effect 30% or so；By the filling of reduction ground resistance of the invention
Slurry is directly perfused in aperture, and resistance reducing effect 54% or so can be improved in 60 Europe of ground resistance resistance value or so.It can be seen that of the invention
Resistance reducing effect it is significant, can achieve reduce ground resistance purpose, meet wind-driven generator lightning protection requirement.
2, grouting material compression strength survey report of the present invention.
Engineering name: Huizhou Huidong axe stone wind power plant anchoring pile uplift test.
Report number: 201700000874.
Testing result is shown in Table 2.
The compression strength testing result of the grouting material of the present invention of table 2.
By result as it can be seen that grouting material compression strength of the invention is highly desirable, it can satisfy DL/T5150-2001 standard and want
It asks.
In conclusion grouting material of the invention uses in construction, the anchor of electric power facility infrastructure can not only be met
Stake intensity, while there is the significant function of reducing ground resistance, manpower, physics and financial resources are saved for engineering, are had very extensively
Promotional value.
Claims (8)
1. a kind of with the grouting material for reducing ground resistance function, which is characterized in that raw material are as follows: 40-60 parts of quartz sand, cement
30-50 parts, 5-10 parts of rubble, 5-10 parts of flyash, 3-5 parts of graphite, 3-5 parts of carbon fiber, 2-3 parts of water-reducing agent, swelling agent 3-5
Part, 2-3 parts of accelerator, 2-3 parts of corrosion inhibitor.
2. as described in claim 1 have the grouting material for reducing ground resistance function, which is characterized in that the grain of the quartz sand
Diameter is 0.5-1m, bulk density 1.2t/m3；The partial size of the rubble is 5-10m.
3. as described in claim 1 have the grouting material for reducing ground resistance function, which is characterized in that the carbon fiber is
Asphalt base carbon fiber；The cement is electroconductive cement；The graphite is electrically conductive graphite.
4. as described in claim 1 have the grouting material for reducing ground resistance function, which is characterized in that the water-reducing agent is
Amino-sulfonic Acid-based Water-reducer, naphthalene series high-efficiency water-reducing agent and lignin sulfonate water-reducing agent；The swelling agent is sulphur
One of calcium aluminate or calcium oxide or combination；The accelerator is sodium metasilicate or potassium aluminate, calcium aluminate；The corrosion inhibitor
For common alkamine corrosion inhibitor.
5. as described in claim 1 have the grouting material for reducing ground resistance function, which is characterized in that the raw material group
Part is in parts by weight are as follows: 60 parts of quartz sand, 45 parts of cement, 10 parts of rubble, 10 parts of flyash, 5 parts of graphite, 3 parts of carbon fiber, amino
3 parts of sulfonate series high-efficiency water-reducing agent, 5 parts of calcium sulphoaluminate, 2 parts of sodium metasilicate, 2 parts of alkamine corrosion inhibitor.
6. as described in claim 1 have the grouting material for reducing ground resistance function, which is characterized in that the raw material group
Divide in parts by weight are as follows: 40 parts of quartz sand, 30 parts of cement, 5 parts of rubble, 5 parts of flyash, 4 parts of graphite, 4 parts of carbon fiber, naphthalene system are high
Imitate 3 parts of water-reducing agent, 4 parts of calcium oxide, 3 parts of calcium aluminate, 2 parts of alkamine corrosion inhibitor.
7. as described in claim 1 have the grouting material for reducing ground resistance function, which is characterized in that the raw material group
Divide in parts by weight are as follows: 48 parts of quartz sand, 50 parts of cement, 9 parts of rubble, 9 parts of flyash, 3 parts of graphite, 5 parts of carbon fiber, lignin
3 parts of Sulfonates water-reducing agent, 2 parts of calcium sulphoaluminate, 3 parts of calcium oxide, 2.5 parts of potassium aluminate, 3 parts of alkamine corrosion inhibitor.
8. the preparation method with the grouting material for reducing ground resistance function as described in claim 1 to 7, which is characterized in that
Each raw material component is matched in parts by weight, carries out physical agitation mixing at normal temperatures and pressures, after mixing evenly, pack packaging,
As finished product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710542462.XA CN109206078A (en) | 2017-07-05 | 2017-07-05 | A kind of grouting material with reduction ground resistance function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710542462.XA CN109206078A (en) | 2017-07-05 | 2017-07-05 | A kind of grouting material with reduction ground resistance function |
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| CN109206078A true CN109206078A (en) | 2019-01-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116535126A (en) * | 2023-05-09 | 2023-08-04 | 东北电力大学 | Transmission tower conductive concrete foundation with natural grounding |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1483699A (en) * | 2002-09-17 | 2004-03-24 | 国家电力公司中南勘测设计研究院圭臬 | Grounding conductive concrete |
| CN104844122A (en) * | 2015-06-08 | 2015-08-19 | 北京建筑大学 | Cement grouting material |
| CN106810181A (en) * | 2017-02-09 | 2017-06-09 | 北京派诺蒙能源科技有限公司 | Heat transfer strength cement-based grouting material |
-
2017
- 2017-07-05 CN CN201710542462.XA patent/CN109206078A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1483699A (en) * | 2002-09-17 | 2004-03-24 | 国家电力公司中南勘测设计研究院圭臬 | Grounding conductive concrete |
| CN104844122A (en) * | 2015-06-08 | 2015-08-19 | 北京建筑大学 | Cement grouting material |
| CN106810181A (en) * | 2017-02-09 | 2017-06-09 | 北京派诺蒙能源科技有限公司 | Heat transfer strength cement-based grouting material |
Non-Patent Citations (2)
| Title |
|---|
| 孙建虎等: "石墨_水泥灌浆材料导电性能的试验研究", 《四川建筑科学研究》 * |
| 张杰: "全机制砂制备高性能灌浆料试验研究", 《公路工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116535126A (en) * | 2023-05-09 | 2023-08-04 | 东北电力大学 | Transmission tower conductive concrete foundation with natural grounding |
| CN116535126B (en) * | 2023-05-09 | 2023-11-03 | 东北电力大学 | Transmission tower conductive concrete foundation with natural grounding |
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