KR19980072334A - Antistatic conductive cement mortar composition - Google Patents
Antistatic conductive cement mortar composition Download PDFInfo
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- KR19980072334A KR19980072334A KR1019970007089A KR19970007089A KR19980072334A KR 19980072334 A KR19980072334 A KR 19980072334A KR 1019970007089 A KR1019970007089 A KR 1019970007089A KR 19970007089 A KR19970007089 A KR 19970007089A KR 19980072334 A KR19980072334 A KR 19980072334A
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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
- 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
- C04B14/38—Fibrous materials; Whiskers
- C04B14/386—Carbon
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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
- 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
- C04B14/022—Carbon
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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
- 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
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
- C04B14/062—Microsilica, e.g. colloïdal silica
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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
- C04B28/02—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 containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/34—Flow improvers
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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
Abstract
본 발명은 대전방지용 도전성 시멘트 몰탈 조성물에 관한 것으로서, 더욱 상세하기로는 시멘트계 결합재에 탄소섬유, 세골재 등을 특정 함량비로 첨가하여 표면저항을 103~ 106Ω까지 조절이 가능하고, 구조물의 바닥재료로 사용 가능한 강도를 갖도록한 대전방지용 도전성 시멘트 몰탈 조성물에 관한 것이다.The present invention relates to an antistatic conductive cement mortar composition, and more specifically, it is possible to adjust the surface resistance to 10 3 ~ 10 6 Ω by adding carbon fiber, fine aggregate, etc. to the cement-based binder in a specific content ratio, the floor material of the structure It relates to an antistatic conductive cement mortar composition to have a strength usable as.
Description
본 발명은 대전방지용 도전성 시멘트 몰탈 조성물에 관한 것으로서, 더욱 상세하기로는 시멘트계 결합재에 탄소섬유, 세골재 등을 특정 함량비로 첨가하여 표면저항을 103~ 106Ω까지 조절이 가능하고, 구조물의 바닥재료로 사용 가능한 강도를 갖도록한 대전방지용 도전성 시멘트 몰탈 조성물에 관한 것이다.The present invention relates to an antistatic conductive cement mortar composition, and more specifically, it is possible to adjust the surface resistance to 10 3 ~ 10 6 Ω by adding carbon fiber, fine aggregate, etc. to the cement-based binder in a specific content ratio, the floor material of the structure It relates to an antistatic conductive cement mortar composition to have a strength usable as.
지금까지의 대전방지용 재료로는 전도성 비닐타일, 전도성 카펫타일, 전도성 고무매트 등이 사용되었다. 그러나, 이러한 대전방지용 재료를 각종 인화성 및 폭발성 물질의 중량물 이송 및 작업장소에서의 공구 등에 사용할 경우, 작업자의 부주의로 인한 낙하물에 의해 부분적인 파손이 발생되어 정전기에 의한 피해 발생율이 높고, 콘크리트 바닥에 이와같은 소재로 시공시 콘크리트의 바닥재와 일체화가 어렵고, 물청소 등을 자주 하는 곳에서는 들뜸현상과 접합부분이 떨어져 자주 보수하여야 하므로 내구성 및 경제적인 문제점이 있다. 이외에도 도전성 레진몰탈 등을 대전방지용 재료로 사용할 경우, 시공이 복잡하고 섬유의 분산성이 떨어져 표면저항 105Ω이하로 조절하기가 어렵다.Until now, as the antistatic material, conductive vinyl tiles, conductive carpet tiles, conductive rubber mats, and the like have been used. However, when such antistatic materials are used for transporting heavy materials of various flammable and explosive materials and tools in the work place, partial damage is caused by falling objects due to inadvertent operator's carelessness, resulting in high damage rate due to static electricity. It is difficult to integrate with the flooring of concrete when constructing such a material, and in the place where water cleaning is frequently performed, there is a problem of durability and economical since it is frequently repaired apart from the floating phenomenon and the joint part. In addition, when conductive resin mortar or the like is used as an antistatic material, it is difficult to control the surface resistance 10 5 kPa or less due to the complicated construction and dispersibility of the fiber.
이에 본 발명자들은 시멘트계 결합재에 도전성 재료로서 흑연 등의 탄소분말이 함유된 도전성 몰탈 및 콘크리트 조성물을 특허출원한 바도 있다[대한민국특허출원 제 95-8110 호]. 도전성 재료로서 탄소분말만을 함유시킨 경우 103~ 106Ω 정도의 일정한 표면저항치를 얻기가 어려울 뿐만 아니라 이를 바닥재료로 사용시 건조수축으로 인한 균열이 발생하게 되고, 안료첨가시에는 원하는 색상을 얻기 어려우므로 개선의 여지가 있다.Accordingly, the present inventors have applied for a patent for a conductive mortar and a concrete composition in which a cement-based binder contains carbon powder such as graphite as a conductive material (Korean Patent Application No. 95-8110). When only carbon powder is contained as a conductive material, it is difficult to obtain a constant surface resistance value of about 10 3 to 10 6 아니라, and when it is used as a flooring material, cracks are generated due to dry shrinkage, and when a pigment is added, it is difficult to obtain a desired color. Therefore, there is room for improvement.
본 발명은 대한민국특허출원 제 95-8110 호의 개량발명으로서, 대전성 재료로는 탄소섬유 단독 또는 탄소섬유와 탄소분말을 함께 함유시켜 상기에서 지적한 바와 같은 문제를 한꺼번에 해결함은 물론이고 문제표면저항을 103~ 106Ω까지 조절이 가능하도록 하였고, 또 여기에 세골재 등을 함유시켜 압축강도, 시공성, 내구성이 우수하도록 할 뿐만아니라 기존 콘크리트 구조물 바닥과 일체화가 가능하고, 중량물의 이송, 청소 등이 가능하여 정전기로 인한 재해를 방지할 수 있는 대전방지용 도전성 시멘트 몰탈을 제공하는데 그 목적이 있다.The present invention is an improved invention of Korean Patent Application No. 95-8110, wherein the chargeable material contains carbon fiber alone or carbon fiber and carbon powder together to solve the problems as pointed out above and at the same time solve the problem surface resistance. 10 3 ~ 10 6 조절 can be adjusted, and it contains fine aggregates to make it excellent in compressive strength, workability and durability, and it is possible to integrate with existing concrete structure floors, and to transport and clean heavy materials. It is an object of the present invention to provide an antistatic conductive cement mortar capable of preventing a disaster caused by static electricity.
본 발명은 결합재와 도전성재료가 함유되어 있는 대전방지용 도전성 재료 조성물에 있어서, 시멘트계 결합재 100 중량부와 탄소섬유 0.05 ~ 5 중량부, 세골재 100 ~ 200 중량부, 무기 혼합재 1 ~ 30 중량부, 그리고 나프탈렌계, 멜라민계 또는 리그닌계에서 선택된 유동화제 0.5 ~ 2.0 중량부가 함유된 대전방지용 도전성 시멘트 몰탈 조성물을 그 특징으로 한다.The present invention relates to an antistatic conductive material composition containing a binder and a conductive material, comprising 100 parts by weight of cement-based binder, 0.05 to 5 parts by weight of carbon fiber, 100 to 200 parts by weight of aggregate, 1 to 30 parts by weight of inorganic mixture, and naphthalene Characterized in that the antistatic conductive cement mortar composition containing 0.5 to 2.0 parts by weight of the fluidizing agent selected from the group, melamine or lignin.
이와 같은 본 발명을 더욱 상세히 설명하면 다음과 같다.Referring to the present invention in more detail as follows.
본 발명은 표면저항 조절이 가능하고 강도가 우수한 대전방지용 도전성 시멘트 몰탈 조성물에 관한 것이다. 일반적으로 시멘트 몰탈 및 콘크리트는 표면저항이 109Ω이상으로서 정전기로 인한 재해에 대하여 방지효과가 없는 절연체이다. 그러나, 본 발명에서는 시멘트계 결합재에 도전성을 부여하기 위하여 탄소섬유를 함유시켰고, 또한 도전성 재료의 고른 분산을 위하여 세골재를 특정 함량범위로 함유시킨 것에 가장 큰 특징이 있다.The present invention relates to an antistatic conductive cement mortar composition capable of controlling surface resistance and excellent strength. In general, cement mortar and concrete are insulators with a surface resistance of 10 9 Ω or more, which does not have a protective effect against disasters caused by static electricity. However, in the present invention, carbon fibers are included to impart conductivity to the cement-based binder, and the greatest feature is that fine aggregates are contained in a specific content range for even dispersion of the conductive material.
본 발명에 따른 대전방지용 도전성 시멘트 몰탈 조성물에서 결합재로는 보통 포틀랜드 시멘트, 중용열 시멘트, 조강 포틀랜드 시멘트, 초조강 포틀랜드 시멘트 등과 같은 포틀랜드 시멘트, 슬래그 시멘트, 플라이애쉬 시멘트, 알루미나 시멘트 등과 같은 혼합시멘트, 백시멘트, 초속경 시멘트, 팽창 시멘트 또는 고강도 시멘트 등과 같은 특수 시멘트를 사용한다.In the antistatic conductive cement mortar composition according to the present invention, as a binder, mixed cements such as portland cement, slag cement, fly ash cement, alumina cement, etc. Special cements such as cement, carbide cement, expanded cement or high strength cement are used.
그리고 도전성 재료로는 탄소섬유를 사용한다. 탄소섬유로는 핏치(Pitch)계 탄소섬유와 팬(PAN)계 탄소섬유 중에서 1종 이상을 선택하여 사용하는 것이 바람직한 바, 이들 섬유는 모두 10-6Ω-m 정도의 전기전도성을 가지고 있기 때문이다. 도전성 재료로서 함유되는 탄소섬유는 시멘트계 결합재 100 중량부에 대하여 0.05 ~ 5 중량부 사용한다. 이때 혼합의 효율성을 향상시키기 위해 탄소섬유의 길이가 1 ~ 10㎜인 것을 사용하는 것이 바람직하다. 만일 결합재 100 중량부에 대하여 탄소섬유의 함량이 0.05 중량부 미만이면 표면저항이 107Ω이상으로서 대전방지용 재료로 사용할 수 없게되고, 탄소섬유의 함량이 5 중량부를 초과하면 표면저항이 102Ω이하로 낮아져서 역전류의 위험이 있을 뿐만아니라 혼합이 어려워지는 단점이 있다.Carbon fiber is used as the conductive material. As the carbon fiber, it is preferable to use at least one selected from pitch-based carbon fiber and pan-based carbon fiber, since all of these fibers have an electrical conductivity of about 10 -6 Ω-m. to be. The carbon fiber contained as the conductive material is used in an amount of 0.05 to 5 parts by weight based on 100 parts by weight of the cement binder. At this time, in order to improve the efficiency of the mixing, it is preferable to use a length of 1 ~ 10mm carbon fiber. If the content of carbon fiber is less than 0.05 part by weight based on 100 parts by weight of the binder, the surface resistance is 10 7 Ω or more and cannot be used as an antistatic material. If the content of the carbon fiber exceeds 5 parts by weight, the surface resistance is 10 2 Ω. It is lowered below, there is a risk of reverse current as well as the disadvantages of difficult mixing.
또한, 시멘트계 결합재내에 도전성 재료로 사용된 탄소섬유가 연속적으로 분포할 수 있도록 탄소 섬유와 함께 탄소분말을 함유시킬 수도 있다. 탄소분말으로는 입도범위가 4 ~ 200 메쉬인 토상흑연, 인조흑연 및 인상흑연 중에서 1종 이상을 선택하여 시멘트계 결합재 100 중량부에 대하여 30 중량부미만 첨가하여 사용한다. 만일 결합재 100 중량부에 대하여 탄소분말의 함량이 30 중량부를 초과하면 오히려 표면저항이 103Ω이하로 낮아져서 역전류가 발생할 수 있을 뿐만 아니라 강도가 저하되는 문제가 있다.In addition, the carbon powder may be contained together with the carbon fibers so that the carbon fibers used as the conductive material may be continuously distributed in the cement binder. As the carbon powder, less than 30 parts by weight based on 100 parts by weight of cement-based binder may be used by selecting one or more selected from soil graphite, artificial graphite, and impression graphite having a particle size ranging from 4 to 200 mesh. If the content of the carbon powder exceeds 30 parts by weight with respect to 100 parts by weight of the binder, rather than the surface resistance is lowered to 10 3 kPa or less, there is a problem that the reverse current may occur as well as the strength is reduced.
그리고, 본 발명에서는 상기 시멘트계 결합재와 도전성 재료 이외에도 탄소섬유의 분산성을 향상시켜 제품의 균일한 혼합을 가져올 뿐만아니라 강도의 증진을 위해서 세골재를 함유시킨다. 본 발명의 대전방지용 도전성 시멘트 몰탈 조성물에서 도전성 재료로 함유된 탄소섬유의 분산이 잘 이루어지지 않으면, 표면저항이 국부적으로 낮게 나타나고, 시공성을 향상시키기 위해 물의 사용량을 증가시키면 강도가 감소하게 되어 중량물의 이송 및 작업자의 부주의로 공구 등과 같은 낙하물에 의해 파손이 일어난다. 이러한 단점을 보완하기 위해 본 발명에서는 세골재를 함유시키므로써 물의 첨가량을 감소시켜 강도를 증진시키고, 재료의 균일한 분산성을 얻을 수 있었다. 세골재는 입도 4mm 이하의 것을 사용하는 것이 바람직하고, 시멘트계 결합재 100 중량부에 대하여 100 ~ 200 중량부 함유시키는 것이 특히 바람직하다.In addition, in the present invention, in addition to the cement-based binder and the conductive material, the dispersibility of the carbon fibers is improved to bring uniform mixing of the product as well as to include fine aggregates for the purpose of enhancing the strength. In the antistatic conductive cement mortar composition of the present invention, if the dispersion of the carbon fiber contained as the conductive material is not well made, the surface resistance is locally low, and the strength is decreased by increasing the amount of water to improve the workability. Damage is caused by falling objects such as tools due to inadvertent transfer and operator. In order to compensate for these disadvantages, the present invention contained fine aggregates, thereby reducing the amount of water added to enhance the strength and obtaining uniform dispersibility of the material. The fine aggregate is preferably one having a particle size of 4 mm or less, particularly preferably 100 to 200 parts by weight based on 100 parts by weight of the cement binder.
그리고, 재료의 충전율 및 반응성을 향상시켜 강도를 증진시킬 목적으로 무기혼합재를 함유시킨다. 본 발명에서는 무기 혼합재로서 마이크로실리카, 메타카올린, 슬라그 미분말, 탄산칼슘, 플라이애쉬 미분말 등 중에서 1종 이상을 선택하여 사용할 수 있으며, 이는 시멘트계 결합재 100 중량부에 대하여 1 ~ 30 중량부 첨가하는 것이 바람직하다.In addition, the inorganic mixture is included for the purpose of improving the filling rate and reactivity of the material to enhance the strength. In the present invention, at least one selected from microsilica, metakaolin, slag fine powder, calcium carbonate, fly ash fine powder and the like may be used as the inorganic mixture, which is added in an amount of 1 to 30 parts by weight based on 100 parts by weight of the cement binder. desirable.
그리고, 본 발명에서는 재료의 분산성 및 시공성을 향상시키기 위해 상기에서 설명한 세골재 이외에도 나프탈렌계, 멜라민계 또는 리그닌계의 유동화제를 시멘트계 결합재 100 중량부에 대하여 0.5 ~ 2.0 중량부 첨가한다. 이로써 물의 첨가량을 감소시켜 강도를 증진시키고, 재료의 균일한 분산성을 얻을 수 있었다.In addition, in the present invention, in order to improve the dispersibility and workability of the material, in addition to the fine aggregate described above, a naphthalene-based, melamine-based or lignin-based fluidizing agent is added in an amount of 0.5 to 2.0 parts by weight based on 100 parts by weight of the cement binder. As a result, the amount of water added was reduced to enhance strength, and uniform dispersibility of the material was obtained.
또한, 상기에서 예시한 조성성분 이외에도 용도에 따라 기타 첨가제로서 안료를 첨가하여 색상을 부여 할 수도 있다. 여기서 안료(흑색, 녹색, 적색, 황색, 청색 등)로는 무기계 안료를 사용하는 것이 특히 바람직한 바, 무기질계 재료들과의 혼합성과 결합력이 우수할 뿐만 아니라 장기적으로 변색이 일어나지 않는 장점이 있다. 안료는 시멘트계 결합재 100 중량부에 대하여 15 중량부 미만으로 첨가한다.In addition to the above-described composition components, it is also possible to impart color by adding a pigment as other additives depending on the use. In this case, it is particularly preferable to use an inorganic pigment as the pigment (black, green, red, yellow, blue, etc.), and it is excellent in mixing properties and binding strength with inorganic materials and also does not cause discoloration in the long term. The pigment is added in less than 15 parts by weight based on 100 parts by weight of the cement based binder.
상기와 같은 본 발명의 대전방지용 도전성 시멘트 몰탈 조성물은 표면저항의 조절이 가능하고, 콘크리트 구조물의 바닥과 일체화가 가능하며 휘발성 및 폭발성 중량물 이송이 용이하다.The antistatic conductive cement mortar composition of the present invention as described above is capable of controlling the surface resistance, can be integrated with the bottom of the concrete structure, and easy to transport volatile and explosive weight.
이하, 본 발명을 실시예에 의거 상세히 설명하면 다음과 같은 바, 본 발명이 이에 의해 한정되는 것은 아니다.Hereinafter, the present invention will be described in detail with reference to the following Examples, but the present invention is not limited thereto.
실시예 1 ~ 3 및 비교예 1 ~ 3Examples 1 to 3 and Comparative Examples 1 to 3
실시예 1 ~ 3 및 비교예 1 ~ 3의 조성 및 그 함량은 다음 표 1에 나타낸 바와 같으며, 결합재와 세골재, 도전성재료 및 기타첨가제를 혼합한 후 물을 첨가하여 혼합하였다. 혼합방법은 KS L 5109에 규정되어 있는 수경성 시멘트 반죽 및 모르터의 기계적 혼합방법을 적용하였다.Compositions and contents of Examples 1 to 3 and Comparative Examples 1 to 3 are as shown in Table 1 below, and the binder and fine aggregate, the conductive material and other additives were mixed and then mixed with water. As a mixing method, the mechanical mixing method of hydraulic cement paste and mortar prescribed in KS L 5109 was applied.
[표 1]TABLE 1
실험예Experimental Example
상기 실시예 1 ~ 3 및 비교예 1 ~ 3에 의해 제조된 대전방지용 도전성 몰탈 조성물을 5×5×5㎝ 몰드로 성형하여 압축강도 공시체를 제조하고, 제조 후 1일째 탈형하여 대기 중에서 양생하였다. 양생후 재령 28일에서 KS L 5105 수경성 시멘트 모르타르의 압축강도 시험방법에 규정되어 있는 방법으로 측정하였다.The antistatic conductive mortar composition prepared in Examples 1 to 3 and Comparative Examples 1 to 3 was molded into a 5 × 5 × 5 cm mold to prepare a specimen of compressive strength, and was demolished on the first day after the preparation to cure in the air. At 28 days after curing, it was measured by the method specified in the KS L 5105 hydraulic cement mortar test method.
그리고 표면저항 측정용 공시체는 120㎝×120㎝ 크기의 콘크리트 바닥에 실시예 1 ~ 3 및 비교예 1 ~ 3에 의해 제조된 대전방지용 도전성 시멘트 몰탈 조성물을 두께 2㎝로 성형하여 대기중에 양생하였다. 양생후 재령 7일과 28일에서 ASTM F 105 전도성 탄성 바닥재에 대한 전기저항 표준 측정법에 규정되어 있는 방법으로 표면저항을 측정하였다.The specimen for measuring the surface resistance was cured in the air by molding the antistatic conductive cement mortar composition prepared in Examples 1 to 3 and Comparative Examples 1 to 3 on a concrete floor having a size of 120 cm × 120 cm. Surface resistance was measured at 7 and 28 days after curing by the method specified in the Standard Measurement Method for Electrical Resistance for Conductive Elastic Flooring.
그 결과는 다음 표 2에 나타낸 바와 같다.The results are shown in Table 2 below.
[표 2]TABLE 2
상기 표 2의 결과에 의하면, 본 발명에 따른 실시예 1 ~ 3의 대전방지용 도전성 시멘트 몰탈 조성물은 결합재로서 다양한 종류의 시멘트를 사용할 수 있고, 도전성 재료로서 탄소섬유를 첨가함으로써 표면저항의 조절이 가능한 조성물을 얻을 수 있었으며, 세골재와 유동화제를 첨가함로써 섬유의 균일한 분산성 및 시공성을 향상 시킬 수 있었다. 또한, 첨가제로서 무기혼합재를 사용함으로써 구조체의 치밀화 및 반응성을 향상시킬 수 있어 압축강도의 향상을 기할 수 있고, 안료의 첨가로 색상를 조절할 수 있어 작업환경에 적합한 대전방지용 바닥면을 얻을 수 있다.According to the results of Table 2, the antistatic conductive cement mortar composition of Examples 1 to 3 according to the present invention can use various kinds of cement as a binder, the surface resistance can be adjusted by adding carbon fiber as the conductive material The composition was obtained, and by adding the fine aggregate and the fluidizing agent, it was possible to improve uniform dispersibility and workability of the fiber. In addition, by using an inorganic mixture as an additive, the densification and reactivity of the structure can be improved, the compressive strength can be improved, and the color can be adjusted by the addition of a pigment, thereby obtaining an antistatic floor surface suitable for the working environment.
반면에, 도전성 재료가 함유되지 않은 비교예 1은 표면저항이 107Ω이상으로서 대전방지능이 없다. 비교예 2는 도전성 재료와 세골재는 함유되어 있으나 무기혼합재가 함유되지 않은 예로서, 압축강도가 저조함은 물론이고 표면저항도 비교적 높아서 도전성 재료로 사용하기에는 문제가 있다. 비교예 3은 도전성 재료로서 탄소섬유와 탄소분말을 함께 함유시키되 세골재가 함유되지 않은 예로서, 세골재가 함유되지 않음으로써 탄소섬유와 탄소분말의 분산성이 저하되었고, 이로써 시멘트의 수화가 진행되어 표면저항의 변화율이 크게 나타났다.On the other hand, Comparative Example 1, which does not contain a conductive material, has a surface resistance of 10 7 GPa or more and does not have antistatic ability. Comparative Example 2 is an example in which the conductive material and the fine aggregate are contained, but the inorganic mixture is not contained. As a result, the compressive strength is low and the surface resistance is relatively high. Comparative Example 3 is an example of containing carbon fiber and carbon powder together as a conductive material, but not containing fine aggregate. As a result, since the aggregate is not contained, dispersibility of the carbon fiber and carbon powder is lowered. The rate of change of resistance was large.
본 발명에 따른 대전방지용 도전성 시멘트 몰탈 조성물은 화학공장, 주유소, 반도체 공장, 인화성 또는 폭발성물질을 취급하는 장소, 휘발성물질을 취급하는 장소, 화약과 화공약품을 취급하는 장소 등에 유용하게 사용할 수 있으며, 특히 높은 압축강도, 우수한 시공성 및 고내구성을 갖고 있어서 중량물의 이동이 가능하고, 시공이 용이한 장점이 있다.The antistatic conductive cement mortar composition according to the present invention can be usefully used in chemical plants, gas stations, semiconductor factories, places handling flammable or explosive substances, places handling volatile substances, places handling explosives and chemicals, etc. In particular, it has a high compressive strength, excellent workability and high durability it is possible to move the heavy material, there is an advantage that easy construction.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100363802B1 (en) * | 1999-12-20 | 2002-12-11 | (주) 지오시스 | Conductive cement composition having excellent soil adhesion and hardened material constructed from the composition |
| KR20030028859A (en) * | 2001-10-04 | 2003-04-11 | 주식회사 인트켐 | The cement compositions for absorbing electromagnetic waves |
| KR20050104156A (en) * | 2004-04-28 | 2005-11-02 | 주식회사 인트켐 | Electro-conductive alumino-silicate type mortar composition with high chemical resistance and fire resistance |
| KR101356855B1 (en) * | 2013-04-30 | 2014-01-29 | 유한회사 콘원 | Phc file of the manufacturing method |
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| KR100378074B1 (en) * | 2000-08-21 | 2003-03-29 | 주식회사 인트켐 | Static-dissipative composition and panel manufactured therewith |
| KR100368644B1 (en) * | 2001-11-23 | 2003-01-24 | Intchem Co Ltd | Inorganic coating composition for electro magnetic shielding of building |
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| JP2755429B2 (en) * | 1989-05-22 | 1998-05-20 | 積水化学工業株式会社 | Conductive cement composition and conductive cured product obtained from this composition |
| JPH0312349A (en) * | 1989-06-08 | 1991-01-21 | Osaka Fuse Kk | Corrosion protective composition for grounding |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100363802B1 (en) * | 1999-12-20 | 2002-12-11 | (주) 지오시스 | Conductive cement composition having excellent soil adhesion and hardened material constructed from the composition |
| KR20030028859A (en) * | 2001-10-04 | 2003-04-11 | 주식회사 인트켐 | The cement compositions for absorbing electromagnetic waves |
| KR20050104156A (en) * | 2004-04-28 | 2005-11-02 | 주식회사 인트켐 | Electro-conductive alumino-silicate type mortar composition with high chemical resistance and fire resistance |
| KR101356855B1 (en) * | 2013-04-30 | 2014-01-29 | 유한회사 콘원 | Phc file of the manufacturing method |
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