KR100895540B1 - Composition of earth resistance decreaser and hardening substance of manufactured using the same - Google Patents
Composition of earth resistance decreaser and hardening substance of manufactured using the same Download PDFInfo
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- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/36—Inorganic materials not provided for in groups C04B14/022 and C04B14/04 - C04B14/34
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- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
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- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
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- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/0076—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials characterised by the grain distribution
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- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
Description
본 발명은 접지저항 저감능력이 우수한 접지저항 저감제 조성물에 관한 것으로서, 환경적으로도 안정적이고 접지전극의 부식 및 주변토양의 오염도 방지할 수 있고, 접지시공 후 접지성능의 계절적 또는 경년변화가 발생하지 않도록 하는 기술에 관한 것이다.The present invention relates to a grounding resistance reducing agent composition having excellent grounding resistance reducing ability, which is also environmentally stable and can prevent corrosion of grounding electrodes and contamination of surrounding soil, and seasonal or secular variation of grounding performance occurs after grounding. It's about technology that doesn't do it.
접지는 눈에 보이지 않는 전류의 흐름으로부터 사고를 미연에 방지하기 위한 것이다. 그러나, 접지는 눈에 보이지 않으므로 그 중요성을 간과하기 쉽다. 또한 상시적으로 일어나는 사고가 아님에 따라 주먹구구식의 시공을 하고 있는 것이 현실이다. 그러나 접지가 불량할 경우 원인 규명이 어려운 사고가 빈번히 일어날 수 있으므로 상당한 주의가 필요하다. 또한 접지문제로 설비의 일시적인 고장이 발생하면 경제적 손실은 상당히 클 수 있으므로 세밀한 시공이 이루어져야 한다. 이러 한 이유에서 접지전극의 설치가 중요시되고 있으며, 여기에 사용되는 접지저항 저감제의 중요성도 증가되고 있다.Grounding is intended to prevent accidents from invisible current flow. However, grounding is invisible, so it is easy to overlook its importance. In addition, the reality is that the construction of the old-fashioned construction because it is not an accident happening at all times. However, if the grounding is poor, it is necessary to take considerable care since accidents that are difficult to identify can occur frequently. In addition, if the temporary failure of the equipment occurs due to grounding problems, the economic loss can be quite large, so detailed construction must be done. For this reason, the installation of the grounding electrode is important, and the importance of the grounding resistance reducing agent used therein is also increasing.
접지시공은 설계에 따라 연결식 접지봉과 병렬접지 방식, 메쉬(Mesh) 시공, 보링(Boring) 시공, 심타공법등을 대지에 설치하게 된다. 그러나 대지의 흙은 그 특성상 많은 변수(Factor)를 가지고 있으므로, 요구하는 접지저항 값을 설계대로 얻는 것은 상당히 어려운 문제가 있다. Grounding construction is based on the design of connecting grounding rod, parallel grounding method, mesh construction, boring construction, deep drilling method, etc. However, since earth soil has many factors due to its characteristics, it is very difficult to obtain the required ground resistance as designed.
접지 저항값은 접지 전극의 길이, 단면적, 접촉면적, 매설 깊이와 밀접한 관계가 있다. 따라서 접지봉, 동판, 나동선을 이용하여 접지를 하는 경우 가능하면 크기가 큰 것으로 시공하는 것이 유리하다. 과거에는 패네트, 패럿어스와 같은 접지전극을 이용하여 접지저항을 쉽게 얻을 수 있었다. 그러나 최근에는 전기 설비의 발달로 인해 낮은 저항치를 요구함에 따라 패네트, 패럿어스와 같은 접지전극의 사용은 한계에 부딪히고 있다. 따라서 여러가지 방법으로 대지의 특성을 조사하여 접지공사 시공을 위한 설계를 하는데, 이렇게 설계가 되어도 요구 저항치를 얻는 것은 매우 어렵다.The ground resistance value is closely related to the length, cross sectional area, contact area and buried depth of the ground electrode. Therefore, when grounding using ground rods, copper plates and bare copper wires, it is advantageous to construct them as large as possible. In the past, grounding resistances were easily obtained by using ground electrodes such as Pannet and Parrotus. However, in recent years, the use of grounding electrodes such as Pannet and Parrotus is facing limitations due to the demand for low resistance due to the development of electrical equipment. Therefore, the design of the grounding construction by investigating the characteristics of the ground in various ways, even if it is designed, it is very difficult to obtain the required resistance value.
아울러, 접지저항을 낮추기 위한 수단으로서는 접지전극을 길고, 크게 형성하거나, 양질의 대지를 선정하는 것이 중요하다. 그러나 양질의 대지를 선정하는 것은 시공 장소에 따라 상이하므로 어려움이 있다. 그리고 접지전극을 길고, 크게 형성하는 경우 공사비등의 부담이 가중됨에 따라 인위적인 접지저항 저감제의 사용이 중요시되고 있다.In addition, as a means for lowering the ground resistance, it is important to form the ground electrode long, large, or to select a good earth. However, there is a difficulty in selecting a good site because it varies depending on the construction site. In addition, when the ground electrode is formed long and large, the use of an artificial earth resistance reducing agent is important as the burden of construction cost increases.
인위적인 공법은 도전성물질 또는 화학적 전해질 물질을 접지극 주변의 토양 속에 주입, 치환하여 토양의 고유저항율을 저감시키는 방법이다. 이 공법의 사고방식은 상당히 오래전부터 있어 왔으며 사용 물질로서는 염(소금), 황산 암모니아, 탄산소다, 카본분말, 벨라이트, 벤토나이트 등을 조합하여 사용하였다. 또한 일부에서는 잿가루, 숯, 분뇨, 흑연, 염화 칼슘, 염화 마그네슘, 코크스 등도 많이 사용되었다. 이러한 물질을 사용한 직후, 저항값은 확실히 낮아지지만 시간이 경과함에 따라 서서히 저항 값이 상승하여 1 ~ 2년이 경과하면 거의 효과가 없어진다. 그 원인은 토립자간의 공극에 이들 물질이 채워져 일시적으로 토양의 고유저항이 저하되나, 이들 물질에는 접착력이 없어 물에 녹기 때문에 빗물 또는 지하수 등에 의하여 쉽게 소멸되어 버리는 이유 때문이다. 또한 접지 전극이 금속인 경우는 부식의 원인이되므로 현재는 이러한 물질을 사용하지 않는다.Artificial method is a method of reducing the resistivity of the soil by injecting or replacing a conductive material or a chemical electrolyte material in the soil around the ground electrode. The way of thinking of this process has been around for quite a long time and used as a combination of salt (salt), ammonia sulfate, sodium carbonate, carbon powder, berite and bentonite. In some cases ash, charcoal, manure, graphite, calcium chloride, magnesium chloride and coke were also used. Immediately after using such a material, the resistance value is clearly lowered, but as time passes, the resistance value gradually increases, and after 1 to 2 years, the effect is almost ineffective. The reason for this is that these materials are filled in the pores between the grains, and thus the resistivity of the soil is temporarily lowered. However, these materials have no adhesive force and are dissolved in water, so they are easily extinguished by rain or groundwater. In addition, if the ground electrode is a metal cause corrosion, currently do not use these materials.
최근에는 이러한 단점을 해결하고자 도전성 재료를 혼합 한 새로운 저감제가 개발되었다.Recently, in order to solve this disadvantage, a new reducing agent mixed with a conductive material has been developed.
제올라이트(Zeolite)를 활용한 방법이 있는데, 이는 기존 화학처리재인 아스론, 치코겔 등의 단점을 보완하여 시멘트와 도전재료, 무기 재료 등을 첨가하여 제조한다. 이들은 동봉, 나동선과 친화력을 가지므로 도체화하여 접지전극의 크기를 극대화시킬 수 있다. 또한, 제로라이트(ZeroLite)는 강한 알카리성을 띠므로 토양 또는 접지전극을 부식시키지 않고 안전하게 사용할 수 있다. There is a method using zeolite, which is manufactured by adding cement, conductive material, and inorganic material by supplementing disadvantages of conventional chemical treatment materials such as asron and chicogel. Since they have affinity with copper rods and bare wires, they can be conductorized to maximize the size of the ground electrode. In addition, since ZeroLite is strongly alkaline, it can be used safely without corroding the soil or the ground electrode.
그러나 산업폐기물인 제올라이트는 유실될 경우 환경오염을 유발시킬 수 있는 문제가 있다. 또한, 시멘트의 경화 과정에서 접지전극 주변의 수분유지가 잘 이루어지지 않아 접지저항 저감능력이 오히려 감소되는 문제가 발생할 수 있다.However, zeolite, an industrial waste, has a problem that can cause environmental pollution if it is lost. In addition, during the hardening process of the cement, the maintenance of the moisture around the ground electrode may be poor, which may cause a problem that the ground resistance reduction ability is rather reduced.
본 발명은 인체, 환경, 공해 등에 안정적이고, 전기적으로 전해질 물질이거나 도체화된 것으로 반영구적인 지속 효과가 있고, 시공 및 작업성이 좋고, 접지극의 부식 및 침식성이 없는 새로운 형태의 접지저항 저감제 조성물 및 이를 이용하여 형성한 접지저항 저감 경화체를 제공하는 것을 그 목적으로 한다. The present invention is stable in the human body, the environment, pollution, etc., and is an electrically electrolytic material or a conductor, and has a semi-permanent sustaining effect, good construction and workability, and no corrosion resistance and corrosion of the ground electrode. And it aims to provide the earth resistance reduction hardening body formed using this.
본 발명에 따른 접지저항 저감제 조성물은 흙 10 ~ 15 중량%, 연탄재 50 ~ 60 중량%, 물 5 ~ 10 중량%, 아스론 15 ~ 20 중량% 및 도전성 필러 10 ~ 15 중량%를 포함하는 것을 특징으로 한다.Earthing resistance reducing agent composition according to the present invention comprises 10 to 15% by weight of soil, 50 to 60% by weight of briquettes, 5 to 10% by weight of water, 15 to 20% by weight of asron and 10 to 15% by weight of conductive fillers It features.
여기서, 상기 흙 및 상기 연탄재는 점토성분 및 이산화규소성분을 포함하는 것을 특징으로 하고, 상기 도전성 필러는 금속 분말 또는 탄소 분말을 포함하는 것을 특징으로 하고, 상기 금속 분말 및 탄소 분말의 입도는 0.5 ~ 2㎛ 인 것을 특징으로 한다.Here, the soil and the briquette material is characterized in that it comprises a clay component and silicon dioxide component, the conductive filler is characterized in that it comprises a metal powder or carbon powder, the particle size of the metal powder and carbon powder is 0.5 ~ It is characterized by a 2㎛.
아울러, 본 발명에 따른 접지저항 저감 경화체는 상술한 접지저항 저감제 조성물을 혼합하여 타설물을 형성하고, 상기 타설물을 성형 및 양생시켜 제조된 것을 특징으로 한다.In addition, the ground resistance reduction hardening body according to the present invention is characterized by being manufactured by mixing the above-described ground resistance reducing agent composition to form a pour, and molding and curing the pour.
여기서, 상기 성형은 진동성형, 가압성형, 압출성형 및 원심성형 방법 중 선택된 어느 하나를 이용하여 소정 모양 및 크기로 성형된 것을 특징으로 하고, 상기 양생은 대기양생, 항온양생, 가열양생, 증기양생 및 오토클레이브 양생 중 선택된 어느 하나를 이용하여 양생된 것을 특징으로 한다.Here, the molding is characterized in that the molded in a predetermined shape and size using any one selected from the vibration molding, pressure molding, extrusion molding and centrifugal molding method, the curing is air curing, constant temperature curing, heating curing, steam curing And autoclave curing.
본 발명에 따른 접지저항 저감제 조성물은 저저항 특성을 갖도록 함으로써, 겔 형상으로 접지전극에 공극 없이 부착되어 공극형성으로 인한부식이나 전식을 방지할 수 있으며, 환경적으로도 안정하여 저감제 자체로 인한 접지전극의 부식 및 주변토양의 오염도 방지할 수 있고, 접지시공 후 접지성능의 계절적 또는 경년 변화가 발생하지 않도록 하는 효과를 제공한다.The grounding resistance reducing agent composition according to the present invention has a low resistance characteristic, and can be attached to the grounding electrode in a gel form without pores to prevent corrosion or corrosion due to the formation of pores. Corrosion of the ground electrode and contamination of the surrounding soil can be prevented, and it provides an effect of preventing seasonal or secular variation of grounding performance after grounding.
본 발명은 저항 저감제에 이산화규소가 다량 함유된 연탄재, 흙, 물, 금속 분말 또는 탄소 분말 등을 첨가하여 우수한 저저항 특성을 얻을 수 있도록 한다.The present invention adds briquettes, soil, water, metal powder or carbon powder containing a large amount of silicon dioxide to the resistance reducing agent to obtain excellent low resistance properties.
이하에서는, 본 발명에 따른 접지저항 저감제 조성물의 각 성분별 특성에 대해 상세히 설명하는 것으로 한다.Hereinafter, the characteristics for each component of the ground resistance reducing agent composition according to the present invention will be described in detail.
본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나 본 발명은 이하에서 개시되는 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 것이며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명은 청구항의 범주에 의해 정의될 뿐이다.Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the present embodiments are intended to complete the disclosure of the present invention, and the general knowledge in the art to which the present invention pertains. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims.
여기서, 각 조성물의 함량비로 표시되는 중량%는 본 발명에 따른 접지저항 저감제 조성물 총 중량에 대한 각 조성물의 함량비를 나타내는 것이다. Here, the weight percent represented by the content ratio of each composition represents the content ratio of each composition to the total weight of the grounding resistance reducing agent composition according to the present invention.
[흙 및 연탄재][Soil and Briquettes]
흙에 포함되는 이산화규소(SiO2)는 주위의 수분을 흡착하는 역할을 한다.Silicon dioxide (SiO 2 ) contained in the soil serves to adsorb the surrounding moisture.
여기에 수분흡착성 광물로서 제올라이트(Zeolite), 벤토나이트(Bentonite), 카올린(Kaolin) 등이 더 포함될 수 있는데, 특히 제올라이트는 1,000㎡/g의 넓은 기공 면적으로 수분을 흡착하거나 배출시키는 기능을 가지고 있기 때문에 계절에 관계없이 항상 일정한 온도와 습도를 유지하여 항상 일정한 접지저항을 유지시킬 수 있도록 한다. 이와 같이 흙에 포함되는 수분흡착성 광물들은 이온 교환능력이 우수하므로 접지 설비가 시공된 토양의 중금속 등을 잘 흡착할 수 있다. 따라서 토양 개량재로서 기능도 수행할 수 있는 환경 친화적인 재료이다. Zeolite, bentonite, kaolin, etc. may be further included as water-adsorbing minerals. Especially, since zeolite has a function of adsorbing or releasing water with a large pore area of 1,000㎡ / g. Regardless of the season, always maintain a constant temperature and humidity to maintain a constant ground resistance. As such, the water-adsorbing minerals contained in the soil have excellent ion exchange ability, so that the grounding facility can adsorb heavy metals of the soil. Therefore, it is an environmentally friendly material that can also function as a soil improver.
상술한 기능을 수행하는 흙은 전체 접지저항 저감제 조성물의 10 ~ 15중량%만큼 첨가되는 것이 바람직하며 10중량% 미만 첨부되면 응집력이 약해지는 문제가 있을 수 있고, 반대로 15중량%를 초과할 경우 조성물의 무게가 증가하여 현실적으로 이용에 제한을 받는 문제가 발생할 수 있다. Soil to perform the above-mentioned function is preferably added by 10 to 15% by weight of the total ground resistance reducing agent composition, if less than 10% by weight may have a problem of weakening the cohesive force, on the contrary if it exceeds 15% by weight Increasing the weight of the composition can cause problems that are practically limited in use.
상기 문제를 해결하기 위하여 본 발명에서는 이산화규소가 다량 함유된 연탄재를 50 ~ 60중량% 만큼 사용하여 조성물을 완성한다. 연탄재에는 약 10%정도의 탄 소 성분을 포함하고 있으며, 그 외에는 칼리와 이산화규소를 포함하는 황토 성분이 포함되어 있다. 따라서 연탄재를 사용하면, 흙의 장점을 살리면서도 조성물의 무게를 상당히 감소시킬 수 있는 장점이 있으며 친환경적으로 재활용하는 의미도 있으므로 매우 바람직하다.In order to solve the above problems, the present invention uses a briquette material containing a large amount of silicon dioxide by 50 to 60% by weight to complete the composition. Briquettes contain about 10% of carbon, and others include ocher, which contains kali and silicon dioxide. Therefore, the use of briquettes, while taking advantage of the soil has the advantage that can significantly reduce the weight of the composition and because it is also environmentally friendly recycling is very desirable.
[물][water]
물은 접지저항 저감제 조성물의 pH를 중성으로 유지하고, 조성물들의 결합제로서도 사용이 된다.Water keeps the pH of the ground resistance reducer composition neutral and is also used as a binder of the compositions.
물은 전체 접지저항 저감제 조성물의 5 ~ 10중량%만큼 첨가되는 것이 바람직하며 5중량% 미만 첨부되면 유동성이 저하되는 문제가 있을 수 있고, 반대로 10중량%를 초과할 경우 강도가 저하되는 문제가 발생할 수 있다.Water is preferably added by 5 to 10% by weight of the total grounding resistance reducing agent composition, if less than 5% by weight may have a problem that the fluidity is lowered, on the contrary, when the content exceeds 10% by weight, the strength is reduced May occur.
[저항 저감제][Resistance reducing agent]
본 발명에 따른 저항 저감제는 아스론을 사용하며, 전체 접지저항 저감제 조성물의 15 ~ 20중량%만큼 포함되도록 한다. 아스론은 접지효과와 공해 안전성이 우수하다. 그러나 경년변화 특성이 미흡하고 저항률이 낮은 편에 속하므로 흙 및 도전성 필러와 같은 다른 조성물질들과 잘 조화시켜야 한다. 따라서 본 발명에서는 접지저항 저감제 조성물의 접지저항 저감 특성을 향상시킬 수 있도록 한다. 아스론이 15중량% 미만 첨부되면 부분적으로 접지 동봉의 접촉부에 부식이 발생하여 시일이 경과 후엔 접지저항 값이 감소되어 특성이 저하되는 문제가 있을 수 있고, 반대 로 20중량%를 초과할 경우 전체 구성 비율에 따른 수분 흡착의 특성이 저하되는 문제가 발생할 수 있다.The resistance reducing agent according to the present invention uses asron, and is to be included by 15 to 20% by weight of the total ground resistance reducing agent composition. Asron has excellent grounding effect and pollution safety. However, because the secular change characteristics are inadequate and the resistivity is low, it should be well matched with other compositions such as soil and conductive fillers. Therefore, in the present invention, it is possible to improve the grounding resistance reduction characteristics of the grounding resistance reducing agent composition. If less than 15% by weight is attached, corrosion may occur at a part of the contact part of the ground rod, and after the passage of time, there may be a problem that the value of the ground resistance decreases, resulting in deterioration of properties. The problem of deteriorating the properties of moisture adsorption according to the composition ratio may occur.
[도전성 필러][Conductive Filler]
본 발명에 따른 접지저항 저감제 조성물에는 금속(Al, Cu, Ag) 분말 또는 탄소(C) 분말이 10 ~ 15중량%만큼 첨가된다.To the ground resistance reducing agent composition according to the present invention, metal (Al, Cu, Ag) powder or carbon (C) powder is added by 10 to 15% by weight.
전기전도성 재료로서는 그 입도가 0.5 ~ 2㎛ 인 것을 사용하는 것이 바람직하며, 한 종류의 입도만 사용하는 것이 아니라 다양한 크기의 입도를 갖는 것을 혼합하여 사용할 수 있으며, 금속 분말 및 탄소 분말을 혼합하여 사용할 수 있다.It is preferable to use an electroconductive material having a particle size of 0.5 ~ 2㎛, it is possible to use not only one type of particle size, but also to mix a variety of particle sizes, and to use a mixture of metal powder and carbon powder Can be.
이하에서는 본 발명에 따른 바람직한 실시예를 들어 접지저항 저감 경화체를 제조하고, 그 특성을 분석한다.Hereinafter, a preferred embodiment according to the present invention for producing a ground resistance reduction cured body, and analyzes its properties.
본 발명에 따른 접지저항 저감성이 우수한 경화체의 형성방법은 상술한 접지저항 저감제 조성물을 혼합하는 단계와, 혼합물을 몰드에 타설시키는 단계와, 타설물을 일반성형, 진동성형, 가압성형, 압출성형 또는 원심성형 방법을 이용하여 일정 모양 및 크기로 성형시키는 단계와, 성형물을 대기양생, 항온양생, 가열양생, 증기양생 또는 오토클레이브 양생시키는 단계와, 양생물의 표면을 연마하는 단계들로 구성된다.The method for forming a cured product having excellent earth resistance reducing properties according to the present invention includes the steps of mixing the above-described ground resistance reducing agent composition, pouring the mixture into a mold, and molding the general casting, vibration molding, pressing molding, and extrusion. Shaping to a certain shape and size using a shaping or centrifugal molding method; forming the molding into an air curing, constant temperature curing, heating curing, steam curing or autoclave curing process; and polishing the surface of the curing body. do.
여기서, 흙, 저항 저감제 및 도전성 필러를 미리 혼합하고 물을 첨가하여 JIS R 5201에 규정되어 있는 "시멘트의 물리시험 방법"에 따라 혼합하는 것으로 한 다. 성형체의 성형과 양생은 종래의 공지된 방법으로 행하며 특별히 한정되지 않는다.Here, the soil, the resistance reducing agent, and the conductive filler are mixed in advance, and water is added to mix according to the "physical test method for cement" specified in JIS R 5201. Molding and curing of the molded body are carried out by a conventionally known method and are not particularly limited.
이하, 본 발명을 실시예를 들어 상세히 설명하고자 하나, 본 발명이 기술된 실시예에 제한되는 것은 아니다. Hereinafter, the present invention will be described in detail with reference to examples, but the present invention is not limited to the described embodiments.
실시예1Example 1
본 발명의 제 1 실시예에 따른 제 1 경화체는 흙 10중량%, 연탄재55%, 물 10%,저항 저감제 15중량%, 금속분말 10중량%를 이용하여 형성한다. 이때, 흙은 점토성분이 포함된 것을 사용하고, 저항 저감제는 기성품인 아스론을 사용하고, 금속분말은 도전성을 가질 수 있는 정도의 입도인 0.5 ~ 2㎛ 로 조절하여 사용한다. The first cured body according to the first embodiment of the present invention is formed using 10% by weight of soil, 55% of briquettes, 10% of water, 15% by weight of resistance reducing agent, and 10% by weight of metal powder. At this time, the soil is used that contains a clay component, the resistance reducing agent is using a ready-made aslon, the metal powder is used to adjust the particle size of 0.5 ~ 2㎛ that can have a conductivity.
실시예2Example 2
본 발명의 제 2 실시예에 따른 제 2 경화체는 흙 10중량%, 연탄재 50중량%, 물 10%, 저항 저감제 20중량%, 탄소분말 10중량% 를 이용하여 형성한다. 이때, 흙은 점토성분이 포함된 것을 사용하고, 접지저항 저감제는 기성품인 아스론을 사용하고, 탄소분말은 도전성을 가질 수 있는 정도의 입도인 0.5 ~ 2㎛ 로 조절하여 사용한다.The second cured body according to the second embodiment of the present invention is formed using 10% by weight of soil, 50% by weight of briquettes, 10% of water, 20% by weight of a resistance reducing agent, and 10% by weight of carbon powder. At this time, the soil is to use a clay component, earth resistance reducing agent is used asron as a ready-made product, carbon powder is used to adjust the particle size of 0.5 ~ 2㎛ that can have a conductivity.
실시예3Example 3
본 발명의 제 3 실시예에 따른 제 3 경화체는 흙 15중량%, 연탄재 50중량%, 물 10중량%, 저항 저감제 15중량%, 금속분말 5중량% 및 탄소분말 5중량%를 이용하여 형성한다. 이때, 흙은 점토성분이 포함된 것을 사용하고, 저항 저감제는 기성품인 아스론을 사용하고, 금속분말 및 탄소분말은 도전성을 가질 수 있는 정도의 입도인 0.5 ~ 2㎛ 로 조절하여 사용한다.The third cured body according to the third embodiment of the present invention is formed using 15% by weight of soil, 50% by weight of briquettes, 10% by weight of water, 15% by weight of resistance reducing agent, 5% by weight of metal powder and 5% by weight of carbon powder. do. At this time, the soil is used that contains a clay component, the resistance reducing agent is using a ready-made asron, metal powder and carbon powder is used to adjust the particle size of 0.5 ~ 2㎛ that can have a conductivity.
비교예1Comparative Example 1
상기 제 1 실시예 중 금속 분말을 제외시키고, 제외된 양만큼 저항 저감제 및 흙의 중량을 증가시켜 경화체를 형성한다.Except for the metal powder in the first embodiment, by increasing the weight of the resistance reducing agent and the soil by the excluded amount to form a cured body.
비교예2Comparative Example 2
상기 제 2 실시예 중 저항 저감제를 제외시키고, 제외된 양만큼 흙 및 탄소분말의 중량을 증가시켜 경화체를 형성한다.Excluding the resistance reducing agent in the second embodiment, by increasing the weight of the soil and carbon powder by the excluded amount to form a cured body.
비교예3Comparative Example 3
상기 제 3 실시예 중 흙을 제외시키고, 제외된 양만큼 저항 저감제, 금속분말 및 탄소분말의 중량을 증가시켜 경화체를 형성한다.Excluding the soil in the third embodiment, by increasing the weight of the resistance reducing agent, metal powder and carbon powder by the excluded amount to form a cured body.
[특성 분석] [Characteristic analysis]
실시예 1∼3 및 비교예 1∼3는 JIS R 5201 "시멘트의 물리시험 방법"에 따라 4× 4 × 16㎝ 몰드로 성형하여 공시체를 제조하고, 온도 20 ± 1℃, 상대습도 90% 이상의 항온항습기에서 양생시킨 다음 24시간이 경과된 후에 양생된 경화체를 탈형시켜 물성측정을 행하였다.Examples 1 to 3 and Comparative Examples 1 to 3 were molded into 4 × 4 × 16 cm molds according to JIS R 5201 “Physical Test Method for Cement” to prepare specimens, and the temperature was 20 ± 1 ° C. and the relative humidity was 90% or more. After curing in a thermo-hygrostat, after 24 hours elapsed, the cured cured product was demolded to measure physical properties.
이하, 본 발명에 의해 제조된 경화체의 물성측정 방법을 구체적으로 설명하면 다음과 같다.Hereinafter, the physical property measurement method of the cured product produced by the present invention will be described in detail.
1. 수분 흡수율1. Water Absorption Rate
탈형된 경화체의 수분흡수율을 측정하기 위하여 경화체를 105℃의 건조기에서 24시간 동안 건조시킨다.In order to measure the water absorption of the demolded cured product, the cured product is dried in a drier at 105 ° C for 24 hours.
다음에는, 건조시킨 경화체의 무게(W1)를 측정한 다음 다시 23℃의 수중(水中)에 침지시킨다. Next, the weight (W 1 ) of the dried cured product is measured and then immersed again in water at 23 ° C.
그 다음에는, 24시간이 지난 후에 수중에 침지시킨 경화체를 꺼내어 표면의 수분을 닦고, 무게(W2)를 측정하여 하기 [방정식 1]으로 수분흡수율(%)을 산출한다.Then, after 24 hours, the cured product immersed in water was taken out, the surface of the surface was washed with water, and the weight (W 2 ) was measured to calculate the water absorption rate (%) by the following [Equation 1].
[방정식 1]Equation 1
2. 전기 저항률2. electrical resistivity
탈형된 경화체를 대기중에 1시간 정도 방치시킨 후, 경화체의 양단에 전극(silver paste)을 도포한 다음 저항측정기를 이용하여 저항을 측정한다. 이때, 측정된 저항값을 하기 [방정식 2]에 대입하여 전기저항율(Ω·m)을 산출한다.After leaving the demolded cured product in the air for about 1 hour, electrodes (silver paste) are applied to both ends of the cured body, and then the resistance is measured using a resistance measuring instrument. At this time, the measured resistivity is substituted into the following [Equation 2] to calculate the electrical resistivity (m · m).
[방정식 2][Equation 2]
3. 파열강도 및 압축강도3. Burst strength and compressive strength
탈형된 경화체를 6일간 양생시킨 후 파열강도와 압축강도를 측정한다.After curing the demolded cured body for 6 days, the bursting strength and the compressive strength were measured.
이때, JIS R 5201 "시멘트의 물리시험 방법"에 따라 파열강도를 측정하고 절단된 시편을 이용하여 압축강도를 측정한다.At this time, the bursting strength is measured according to JIS R 5201 "Physical test method of cement" and the compressive strength is measured using the cut specimen.
4. 접지저항 측정4. Earth resistance measurement
본 발명에 의한 접지저항 저감재 조성물의 토양과의 접착력에 따른 접지저항 저감효과를 시험하기 위하여 접지저항 테스트를 실시한다.In order to test the grounding resistance reduction effect of the grounding resistance reducing material composition according to the present invention with adhesion to soil, a grounding resistance test is performed.
테스트를 위하여 4점식 측정기를 사용하여 대지저항율을 먼저 측정하며, 여기서는 대지저항율이 330Ωㆍm인 경우를 들어 설명하는 것으로 한다. 이때, 4점식 측정기는 BIDDLE사의 DET2/2를 사용하고, 측정 방법은 전위강하법(Fall of potential method)으로 측정하는 것으로 한다.For the test, the earth resistivity is measured first using a four-point measuring instrument. Here, the case where the earth resistivity is 330? In this case, a four-point measuring instrument uses DET2 / 2 manufactured by BIDDLE, and the measuring method is to be measured by a fall of potential method.
다음에는, 대지에 각각 폭 0.4m, 깊이 1m, 길이 3m의 터파기를 행한 다음 BC 100㎟의 전선을 바닥에 고정시키고 1m당 10㎏의 접지저항 저감제 조성물을 포설시 킨 후 흙으로 되메우기를 행한 후 접지저항(Ω)을 측정한다.Next, the earth was 0.4m wide, 1m deep and 3m long, respectively, and the BC 100 mm2 wire was fixed to the floor, 10 kg of earth resistance reducing agent composition was installed per 1 m, and then backfilled with soil. After that, measure the ground resistance (Ω).
이하 [표 1]은 상술한 물성 측정방법으로 측정한 결과를 나타낸 표이다.[Table 1] below is a table showing the results measured by the above-described physical properties measuring method.
[표 1]특성 비교[Table 1] Comparison of characteristics
상기 물성측정 결과, 실시예 1 내지 3에서 제조된 경화체는 전기저항율이 0.05Ωㆍm미만이고, 파열강도가 45㎏f/㎠이상이며, 압축강도가 200㎏f/㎠이상으로 나타나고 있다. 아울러, 접지저항 저감효과도 비교예1 내지 3보다 우수한 물성을 나타냈다.As a result of the measurement of the physical properties, the cured products prepared in Examples 1 to 3 have an electrical resistivity of less than 0.05? · M, a burst strength of 45 kgf / cm 2 or more, and a compressive strength of 200 kgf / cm 2 or more. In addition, the effect of reducing ground resistance also showed better physical properties than Comparative Examples 1 to 3.
상술한 바와 같이, 본 발명에 의해 제조되는 경화체는 접지극 주변에 항상 일정한 수분이 유지되도록 하고, 저저항특성을 갖도록 함으로써, 겔 형상으로 접지전극에 공극 없이 부착되어 공극형성으로 인한부식이나 전식을 방지할 수 있다.As described above, the cured product manufactured by the present invention is to maintain a constant moisture around the ground electrode at all times, and to have a low resistance characteristic, to be attached to the ground electrode in a gel form without pores to prevent corrosion or electrocution due to the formation of pores can do.
이상 첨부된 도면을 참조하여 본 발명의 실시예들을 설명하였으나, 본 발명은 상기 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 변형될 수 있으며, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자는 본 발명의 기술적 사상이나 필수적인 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 그러므로 이상에서 기술한 실시예들은 모든 면에서 예시적인 것이며 한정적이 아닌 것으로 이해해야만 한다.Although the embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above embodiments and can be modified in various forms, and having ordinary skill in the art to which the present invention pertains. It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without changing the technical spirit or essential features of the present invention. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.
Claims (8)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101095916B1 (en) * | 2010-07-02 | 2011-12-21 | 제일엔지니어링 (주) | Composition of earth resistance decreaser and hardening substance of manufactured using the same |
| KR101202975B1 (en) | 2010-07-02 | 2012-11-20 | 최원영 | Composition of Earth Resistance Decreaser And Hardening Substance of Manufactured Using The Same |
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|---|---|---|---|---|
| JPH05286748A (en) * | 1992-04-10 | 1993-11-02 | Sekisui Chem Co Ltd | Production of hydraulic composition and conductive hardened body |
| JPH07142136A (en) * | 1993-11-18 | 1995-06-02 | Osaka Gas Co Ltd | Grounding resistance reducing agent and grounding electrode |
| JPH07206502A (en) * | 1994-01-13 | 1995-08-08 | Onoda:Kk | Electrically conductive polymer cement mortar and its production |
| KR100328650B1 (en) | 1999-07-22 | 2002-03-14 | 박상호 | Reduction material and concrete manufactured article of earth resistance |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05286748A (en) * | 1992-04-10 | 1993-11-02 | Sekisui Chem Co Ltd | Production of hydraulic composition and conductive hardened body |
| JPH07142136A (en) * | 1993-11-18 | 1995-06-02 | Osaka Gas Co Ltd | Grounding resistance reducing agent and grounding electrode |
| JPH07206502A (en) * | 1994-01-13 | 1995-08-08 | Onoda:Kk | Electrically conductive polymer cement mortar and its production |
| KR100328650B1 (en) | 1999-07-22 | 2002-03-14 | 박상호 | Reduction material and concrete manufactured article of earth resistance |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101095916B1 (en) * | 2010-07-02 | 2011-12-21 | 제일엔지니어링 (주) | Composition of earth resistance decreaser and hardening substance of manufactured using the same |
| KR101202975B1 (en) | 2010-07-02 | 2012-11-20 | 최원영 | Composition of Earth Resistance Decreaser And Hardening Substance of Manufactured Using The Same |
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