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KR101046557B1 - Eco-friendly ready-mixed concrete composition using water containing anion - Google Patents

Eco-friendly ready-mixed concrete composition using water containing anion Download PDF

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KR101046557B1
KR101046557B1 KR1020110023015A KR20110023015A KR101046557B1 KR 101046557 B1 KR101046557 B1 KR 101046557B1 KR 1020110023015 A KR1020110023015 A KR 1020110023015A KR 20110023015 A KR20110023015 A KR 20110023015A KR 101046557 B1 KR101046557 B1 KR 101046557B1
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salt
cement
dispersant
sulfonate
mixed concrete
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김진섭
박정수
이승헌
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(유)코리아레미콘
(유)코리아
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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
    • 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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators or shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C04B22/10—Acids or salts thereof containing carbon in the anion, e.g. carbonates
    • 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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators or shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/16—Sulfur-containing compounds
    • C04B24/20—Sulfonated aromatic compounds
    • 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
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/06—Inhibiting the setting, e.g. mortars of the deferred action type containing water in breakable containers ; Inhibiting the action of active ingredients
    • C04B40/0625—Wet ready-made mixtures, e.g. mortars in water- or airtight packages, or mortars containing an accelerator in a breakable emulsion
    • 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
    • C04B2103/40—Surface-active agents, dispersants
    • 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
    • C04B2103/40—Surface-active agents, dispersants
    • C04B2103/408—Dispersants

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

본 발명은 시멘트 내에 함유되어 있는 인체에 유해한 6가 크롬과 일반적으로 시멘트 독이라고 불리는 콘크리트가 양생되면서 강알칼리성 질소 화합물이 유기불순물이나 수분과 반응하여 특유의 냄새가 코를 찌르며 어지러움을 느끼게 하는 유해한 암모니아 가스를 제거하기 위하여, CO₃, HCO, SO₄등의 음이온이 다량 함유된 용수와 Alkyl benzene sulfonate Fe염 또는 Poly stylene sulfonate Fe염인 분산제를 함유하는 친환경 레미콘 조성물에 관한 발명이다.The present invention is a harmful ammonia that hexavalent chromium that is harmful to the human body contained in cement and concrete, commonly referred to as cement poison, is cured while strong alkaline nitrogen compounds react with organic impurities or moisture, causing a peculiar odor to sting and feel dizzy. In order to remove the gas, the present invention relates to an environment-friendly ready-mixed concrete composition containing water containing a large amount of anions such as CO 3, HCO, SO 와 and a dispersant which is Alkyl benzene sulfonate Fe salt or Poly stylene sulfonate Fe salt.

Description

음이온을 함유하는 용수를 이용한 친환경 레미콘 조성물{Eco-friendly Composition of Red-mixed concrete using Water containing Anion} Eco-friendly Composition of Red-mixed concrete using Water containing Anion}

본 발명은 시멘트 내에 함유되어 있는 인체에 유해한 6가 크롬과 일반적으로 시멘트 독이라고 불리는 콘크리트가 양생되면서 강 알칼리성 질소 화합물이 유기 불순물이나 수분과 반응하여 특유의 냄새가 코를 찌르며 어지러움을 느끼게 하는 유해한 암모니아 가스를 제거하기 위하여, CO₃, HCO, SO₄등의 음이온이 다량 함유된 용수와 Alkyl benzene sulfonate Fe염 또는 Poly stylene sulfonate Fe염인 분산제를 함유하는 친환경 레미콘 조성물에 관한 발명이다.The present invention is a harmful ammonia that the strong alkaline nitrogen compound reacts with organic impurities or moisture while hexavalent chromium and concrete, commonly referred to as cement poison, are contained in cement, causing the peculiar smell to sting and feel dizzy. In order to remove the gas, the present invention relates to an environment-friendly ready-mixed concrete composition containing water containing a large amount of anions such as CO 3, HCO, SO 와 and a dispersant which is Alkyl benzene sulfonate Fe salt or Poly stylene sulfonate Fe salt.

시멘트는 천연 광물인 석회석, 규석, 점토 등의 원료를 분쇄 및 혼합하여 고온의 킬른에서 소성 공정을 거쳐 제조하는데, 1999년 산업 폐기물을 시멘트 원료로 사용할 수 있도록 허용하면서부터 산업 폐기물인 제철소의 주물사, 전기제련 부산물인 슬래그, 하수·정수 슬러지, 소각장의 소각재, 화력발전소 집진기의 집진재 등을 시멘트 원료로 대체 사용하고 있다.Cement is manufactured by grinding and mixing raw materials such as limestone, silica, and clay, which are natural minerals, by firing in a high-temperature kiln.In 1999, cement was allowed to be used as a raw material for cement. Slag, sewage and water sludge, incinerator ash from incinerators, and dust collector from coal-fired power plant dust collectors are used as cement raw materials.

이 같은 재료들은 시멘트 제조시 산화분위기의 소성 과정을 거치면서 함유되어 있던 크롬 중 일부가 6가 크롬으로 전환되어 최종 제품인 시멘트에 포함된다. 6가 크롬은 경화된 콘크리트에서는 방출되지 않지만 마모나 분쇄되었을 때 미세분진 속에 다량의 6가 크롬이 함유되어 인체 내로 흡입 침투되어 피부와 점막에 장애를 일으켜 각종 암과 피부질환 아토피, 알레르기, 천식 등을 발병시키는 유해물질이다. 미국 보건안전국과 암 연구회는 크롬을 발암물질로 규정하여 그 위험성을 경고하고 있다.These materials are converted into hexavalent chromium in the final product by converting some of the chromium contained in the oxidizing atmosphere during the calcination process. Hexavalent chromium is not released from hardened concrete, but when it is worn or crushed, a large amount of hexavalent chromium is contained in the fine dust, which is inhaled and penetrated into the human body, causing disorders in the skin and mucous membranes. It is a harmful substance that causes illness. The US Department of Health and Human Services and the Cancer Society warn of the danger by defining chromium as a carcinogen.

유럽(EU)에서는 콘크리트 내의 크롬 함유량을 2㎎으로 규제하고 있는데 국내에서는 최근에 신축아파트를 이용한 전국 각지의 콘크리트를 발생 연도별로 다양하게 채취하여 크롬 함유량을 측정한 결과 kg당 15~75㎎의 크롬이 측정되었다. 최근 환경오염에 대한 문제가 사회적 문제로 대두되면서 인체에 유해한 물질을 함유한 폐기물인 경우에는 그 문제가 더욱 심각하다. 한 예로, 제련소의 폐광재 중 인체에 유해한 중금속인 6가 크롬이 용출되어 토양 및 하천을 오염시키는 2차 오염의 주범으로 지적되고 있다.
In Europe (EU), the content of chromium in concrete is regulated to 2mg. In Korea, recently, the chromium content of 15 ~ 75mg of chromium per kg was measured by varying the generation of concrete from all over the country using new apartments. This was measured. As the problem of environmental pollution has recently emerged as a social problem, the problem is even more serious in the case of waste containing substances harmful to the human body. For example, hexavalent chromium, a heavy metal that is harmful to the human body, is discharged from waste slag of smelters and has been pointed out as the main cause of secondary pollution that pollutes soil and rivers.

상기의 중금속을 제거하는 대표적인 방법으로는 수산화나트륨이나 소석회를 사용하는 화학침전법, 이온교환수지법, 활성탄법, 삼투압법, 전기투석법, 바이오 매스법 등이 개발되어 있다.Representative methods for removing the heavy metals have been developed such as chemical precipitation, ion exchange resin, activated carbon, osmotic method, electrodialysis, biomass method using sodium hydroxide or hydrated lime.

국내 공개특허 특1998-39042호에는 시멘트 중에 존재하는 6가 크롬을 제거하기 위한 방법으로 시멘트 분쇄과정에서 황산제1철1수염(FeSO4·H2O) 또는 황산제1철7수염(FeSO4·7H2O) 등의 환원제를 첨가하여 시멘트 중에 존재하는 6가 크롬을 3가 크롬으로 환원하는 방법이 제시되어 있다. 상기의 선행기술은 제조비용이 높을 뿐만 아니라 환원제를 시멘트와 골고루 혼합하는데 어려움이 있으며, 국내공개특허 제10-2006-61316호에서는 시멘트 바닥에 면처리용 조성물로 다시 미장하여 6가 크롬의 방출을 억제하고 있으나 이는 6가 크롬을 제거하는 것이 아니라 노출을 방지하기 위한 미봉책에 불과하여 원천적으로 6가 크롬의 제거에는 한계가 있다.Korean Patent Laid-Open Publication No. 1998-39042 discloses a method for removing hexavalent chromium present in cement, such as ferrous sulfate (FeSO 4 · H 2 O) or ferrous sulfate (7 SO 2 O) during cement grinding. A method of reducing hexavalent chromium present in cement to trivalent chromium by adding a reducing agent of is provided. The prior art has a high manufacturing cost, and it is difficult to evenly mix the reducing agent with cement. In Korean Patent Publication No. 10-2006-61316, the surface of the cement is plastered again with a surface treatment composition to release hexavalent chromium. However, this is not a removal of hexavalent chromium, but only an unmeasure to prevent exposure, and there is a limit to the removal of hexavalent chromium.

국내공개특허 제10-2010-111055호에서는 LCD 폐유리를 첨가하여 시멘트의 주성분인 CaO의 함유량을 줄임으로써 6가 크롬을 저감시킬 수 있는 기술에 관한 것으로 원천적으로는 6가 크롬의 제거할 수 없는 한계점을 가지고 있다.Korean Patent Publication No. 10-2010-111055 relates to a technology that can reduce hexavalent chromium by reducing the content of CaO, the main component of cement, by adding LCD waste glass. It has a limitation.

또한, 콘크리트가 양생되면서 함유되어있던 강알칼리성 질소 화합물이 유기 불순물이나 수분과 반응하여 염기성인 유해한 암모니아 가스를 발생 분출하는데, 콘크리트 신축 구조물에 들어가면 특유의 냄새가 코를 찌르며 어지러움을 느끼게 하는 것이 일반적으로 시멘트 독이라고 알려져 있는 유해물질인 암모니아 가스 냄새 때문이다. 상기의 암모니아 가스는 염기성 화학물질로 소량이라도 계속 흡입하면 눈과 호흡기를 자극하고 폐를 부식시킬 수 있다. 암모니아 가스가 인체나 동식물의 생명체에 악영향을 미치는 것은 물론 구리나 동합금, 비철금속 등의 변색과 부식시키는 성질도 있어 서울시 용산에 새로 지은 국립박물관이 건립 완공되었음에도 유물반입 및 전시를 5년간 미룬 이유도 여기에 있다.In addition, the strong alkaline nitrogen compound contained in the curing of the concrete reacts with organic impurities or water to generate and release basic harmful ammonia gas. This is due to the smell of ammonia gas, a harmful substance known as cement poison. The above ammonia gas is a basic chemical that continues to be inhaled, irritating the eyes and respiratory system and corrosive to the lungs. Not only does ammonia gas adversely affect humans and animals and plants, but it also discolors and corrodes copper, copper alloys, and nonferrous metals.The reason for delaying relics and exhibits for five years is that the new National Museum in Yongsan, Seoul has been built. Is in.

이 같은 암모니아 냄새를 제거하는 방법으로는 구조물 표면을 중화 세척하는 방법이 있으나, 이는 일시적 효과가 있을 뿐 영구적이지 못해 현재는 대부분 장기간 통풍(환풍)시키는 방법밖에 없다.As a method of removing the ammonia odor, there is a method of neutralizing and cleaning the surface of the structure, but this has only a temporary effect and is not permanent.

상기와 같은 종래 기술들의 문제점을 해결하기 위하여 본 발명자는 예의 연구하던 중 우연히 전북 익산시 왕궁면 소재 왕궁온천 주위의 지하수에 분산제인 Alkyl benzene sulfonate Fe염을 첨가하여 레미콘을 제조하여 분석한 결과 시멘트에 함유되어 있던 6가 크롬이 3가 크롬으로 환원되었으며, 시멘트 독이라고 불리는 암모니아 가스의 발생도 저감되었음을 발견하고 본 발명을 완성하게 되었다. In order to solve the problems of the prior art as described above, the inventor accidentally added a salt of Alkyl benzene sulfonate Fe as a dispersant to the groundwater around the royal spa of Wanggung-myeon, Iksan-si, Iksan-si, Jeonbuk. The present invention was completed by discovering that hexavalent chromium was reduced to trivalent chromium and generation of ammonia gas called cement poison was also reduced.

상기의 지하수는 CO₃, HCO, SO₄등의 다량의 음이온이 함유되어 있어 이들 음이온과 sulfonate Fe염이 6가 크롬 및 암모니아와 화학반응을 통하여 3가 크롬 및 암모니아 착염을 형성함을 시험을 통하여 밝혀졌다.The above groundwater contains a large amount of anions such as CO₃, HCO, SO 있어, etc., and these tests showed that these anions and sulfonate Fe salts formed trivalent chromium and ammonia complex salts by chemical reaction with hexavalent chromium and ammonia. .

따라서 본 발명은 Alkyl benzene sulfonate Fe염 또는 Poly stylene sulfonate Fe염인 분산제 및 음이온을 함유한 용수를 이용한 레미콘 조성물을 제공함을 목적으로 한다. Accordingly, an object of the present invention is to provide a ready-mixed concrete composition using water containing an dispersant and anion which are Alkyl benzene sulfonate Fe salts or Poly stylene sulfonate Fe salts.

또 다른 과제는 상기의 음이온을 함유한 용수 및 Fe sulfonate염의 분산제를 사용함으로써 레미콘의 강도에는 영향을 주지 않으면서 콘크리트의 분산력이 증대되어 경화 후 표면 상태의 치밀화, 평활도 및 광택도가 증가된 레미콘 조성물 및 그 제조방법을 제공함을 그 과제로 한다. Another problem is that the use of the anion-containing water and Fe sulfonate salt dispersant increases the dispersibility of the concrete without affecting the strength of the ready-mixed concrete, the concrete composition, the smoothness and smoothness of the surface state after hardening increased And the subject is to provide the manufacturing method.

본 발명의 레미콘 조성물은 시멘트, 음이온을 함유한 용수, 모래, 골재 및 Alkyl benzene sulfonate Fe염 또는 Poly stylene sulfonate Fe염인 분산제로 조성됨을 특징으로 하고, 특히 본 발명에서는 음이온을 함유한 용수 및 Alkyl benzene sulfonate Fe염 또는 Poly stylene sulfonate Fe염인 분산제를 사용함을 그 특징으로 한다.The ready-mixed concrete composition of the present invention is composed of cement, anion-containing water, sand, aggregate, and a dispersant which is Alkyl benzene sulfonate Fe salt or Poly stylene sulfonate Fe salt, and in particular, in the present invention, an anion-containing water and Alkyl benzene sulfonate It is characterized by the use of dispersants which are Fe salts or Poly stylene sulfonate Fe salts.

본 발명은 CO₃, HCO, SO₄등의 다량의 음이온이 함유되어 있는 용수를 사용한다. The present invention uses water containing a large amount of anions such as CO 3, HCO, and SO₄.

분산제는 일반적으로 분산 작용이 요구되는 용도에 사용되는 계면활성제 총칭으로 고체-액체 계면의 성질을 변화시켜 나타나는 분산효과를 주는 것이 분산제로, 시멘트의 분산제로는 폴리카르본산계 분산제가 대표적이다.The dispersant is a surfactant generally used in applications requiring dispersing action. The dispersant is a dispersant that gives a dispersing effect by changing the properties of the solid-liquid interface, and a polycarboxylic acid-based dispersant is a typical dispersant for cement.

본 발명에서는 6가 크롬 및 암모니아를 환원시키는 성질을 갖는 benzene sulfonate Fe염 또는 Poly stylene sulfonate Fe염을 분산제로 사용하였다.In the present invention, benzene sulfonate Fe salt or Poly stylene sulfonate Fe salt having a property of reducing hexavalent chromium and ammonia was used as a dispersant.

상기와 같은 음이온을 함유한 용수와 Fe sulfonate염을 주성분으로 하는 분산제의 화학반응에 의해 시멘트 내에 존재하는 6가 크롬은 인체에 무해한 3가 크롬으로 환원되고 암모니아는 착염을 형성하여 시멘트 독을 제거하였다.The hexavalent chromium present in cement is reduced to trivalent chromium which is harmless to human body by chemical reaction of water containing anion and Fe sulfonate salt as main component, and ammonia forms complex salt to remove cement poison. .

본 발명은 레미콘 제조시 음이온을 함유한 용수와 benzene sulfonate Fe염 또는 Poly stylene sulfonate Fe염을 분산제로 사용함으로써, 용수 내의 음이온 및 분산제의 Fe sulfonate 염에 의해 시멘트 제조시 발생되는 6가 크롬을 인체에 무해한 3가 크롬으로 환원시켜 피부와 점막에 장애를 일으켜 각종 암과 피부질환 아토피, 알레르기, 천식 등의 발병의 원인인 6가 크롬을 제거함과 동시에 시멘트 독이라고 불리는 암모니아 가스의 발생을 억제하는 친환경적인 레미콘을 제조함은 물론 콘크리트의 강도에 영향을 주지 않으면서 분산력을 증대시켜 콘크리트가 경화 후 표면 상태의 치밀화 및 평활도가 증가되었고, 경화제 표면의 광택도 높이는 효과가 있다.
According to the present invention, by using water containing anion and benzene sulfonate Fe salt or Poly stylene sulfonate Fe salt as a dispersant in preparing ready-mixed concrete, hexavalent chromium generated in cement production by Fe sulfonate salt of anion and dispersant in water is produced to the human body. It is reduced to harmless trivalent chromium and causes disorders on the skin and mucous membranes. It removes hexavalent chromium, which causes various cancers and skin diseases such as atopic skin, allergies and asthma, and at the same time, suppresses the generation of ammonia gas called cement poison. As well as manufacturing ready-mixed concrete, it is possible to increase the dispersibility without affecting the strength of concrete, thereby increasing the densification and smoothness of the surface state of the concrete after curing, and increasing the glossiness of the surface of the curing agent.

본 발명의 레미콘 조성물은 음이온을 함유한 용수, 시멘트, 모래, 자갈 및 분산제로 조성되어 있고, 상기 시멘트 100중량부에 대해여 용수 60~100중량부, 모래 100~170중량부, 분산제 5~10중량부를 포함함을 특징으로 한다.The ready-mixed concrete composition of the present invention is composed of anion-containing water, cement, sand, gravel and dispersant, and 60-100 parts by weight of water, 100-170 parts by weight of sand, and dispersant 5-10 with respect to 100 parts by weight of the cement. It is characterized by including a weight part.

또한, 레미콘 조성물로 자갈이나 골재를 사용할 경우의 조성비는 시멘트 100중량부에 대해여 용수 60~100중량부, 모래 90~150중량부, 자갈 60~120중량부, 분산제 5~10중량부를 포함함을 특징으로 한다.
In addition, the composition ratio when using gravel or aggregate as a ready-mixed concrete composition includes 60 to 100 parts by weight of water, 90 to 150 parts by weight of sand, 60 to 120 parts by weight of gravel, and 5 to 10 parts by weight of dispersant based on 100 parts by weight of cement. It is characterized by.

본 발명에서 사용하는 음이온을 함유한 용수에는 CO₃, HCO₃, SO₄ 등의 음이온이 다량 함유되어 있으며, 분산제는 Fe sulfonate염을 갖는 benzene sulfonate Fe염 또는 Poly stylene sulfonate Fe염을 사용함을 특징으로 한다.The anion-containing water used in the present invention contains a large amount of anions such as CO 3, HCO 3, and SO₄, and the dispersant is characterized by using a benzene sulfonate Fe salt or a poly stylene sulfonate Fe salt having a Fe sulfonate salt.

본 발명에 따른 레미콘 조성물은 콘크리트의 압축강도를 떨어뜨리지 않으면서 믹싱된 콘크리트의 유동성을 향상시키며, 시멘트 내에 함유되어 있는 6가 크롬을 무독한 3가 크롬으로 환원시키며, 또한, 유독성 암모니아와 반응하여 착염을 형성함으로써 신축한 콘크리트 구조물의 큰 문제점이었던 시멘트 독을 저감시킨다. 본 발명의 음이온을 함유한 용수 및 분산제가 암모니아와 화학반응을 일으켜 암모니아가 착염을 형성하게 되는 일예는 아래와 같다.
The ready-mixed concrete composition according to the present invention improves the fluidity of the mixed concrete without reducing the compressive strength of the concrete, and reduces the hexavalent chromium contained in the cement to the nontoxic trivalent chromium, and also reacts with the toxic ammonia. The formation of complex salts reduces cement poisoning, a major problem for stretched concrete structures. One example in which the anion-containing water and the dispersant of the present invention cause a chemical reaction with ammonia to form a complex salt.

* 용수 중의 음이온과의 반응* Reaction with anions in water

2NH4 + + SO42 2- → (NH4)2 SO4
2NH 4 + + SO 42 2- → (NH 4 ) 2 SO 4

* 분산제 말단기의 Fe와 반응* Reaction with Fe of dispersant end group

Fe+2 + 2NH4 1+ → Fe (NH4)2 (착염형성)Fe +2 + 2NH 4 1+ → Fe (NH 4 ) 2 (complexation)

이하, 본 발명의 레미콘 조성물의 배합에 따른 실시예 및 비교예를 제시하지만 본 발명은 하기의 실시예에 의하여 한정되는 것은 아니다.
Hereinafter, examples and comparative examples according to the formulation of the ready-mixed concrete composition of the present invention are shown, but the present invention is not limited by the following examples.

<실시예 1>&Lt; Example 1 >

시멘트: 10kg    Cement: 10kg

모래: 15kg   Sand: 15kg

음이온을 함유한 용수: 7.0kg   Water containing anions: 7.0 kg

benzene sulfonate Fe염: 0.5kg
benzene sulfonate Fe salt: 0.5kg

<실시예 2><Example 2>

시멘트: 10kg    Cement: 10kg

모래: 15kg   Sand: 15kg

음이온을 함유한 용수: 7.0kg   Water containing anions: 7.0 kg

Poly stylene sulfonate Fe염: 0.5kg
Poly stylene sulfonate Fe salt: 0.5kg

<실시예 3><Example 3>

시멘트: 10kg    Cement: 10kg

모래: 10kg   Sand: 10kg

자갈: 12kg    Gravel: 12kg

음이온을 함유한 용수: 10.0kg   Water containing anions: 10.0 kg

benzene sulfonate Fe염: 0.5kg   benzene sulfonate Fe salt: 0.5kg

<비교예 1>Comparative Example 1

시멘트: 10kg    Cement: 10kg

모래: 15kg   Sand: 15kg

일반용수: 7.0kg   General Water: 7.0kg

benzene sulfonate Fe염: 0.5kg   benzene sulfonate Fe salt: 0.5kg

<비교예 2>Comparative Example 2

시멘트: 10kg    Cement: 10kg

모래: 15kg   Sand: 15kg

일반용수: 7.0kg   General Water: 7.0kg

폴리카르본산계 분산제: 0.5kg
Polycarboxylic Acid Dispersant: 0.5kg

<비교예 3>Comparative Example 3

시멘트: 10kg    Cement: 10kg

모래: 10kg   Sand: 10kg

자갈: 12kg    Gravel: 12kg

일반용수: 10kg   General water: 10 kg

폴리카르본산계 분산제: 0.5kg
Polycarboxylic Acid Dispersant: 0.5kg

실시예 1 내지 3과 비교예 1 내지 3은 통상적인 레미콘 제조 공정에서 레미콘 제조시 사용하는 성분들로 실시예 1 내지 3은 용수로서 음이온을 함유한 용수 및 분산제로 실시예 1 및 3은 benzene sulfonate Fe염을 첨가하였고, 실시예 2는 Poly stylene sulfonate Fe염을 첨가하였다,Examples 1 to 3 and Comparative Examples 1 to 3 are components used for preparing ready-mixed concrete in a conventional ready-mixed concrete manufacturing process. Examples 1 to 3 are water and a dispersant containing anions as water. Examples 1 and 3 are benzene sulfonate. Fe salt was added, Example 2 was added Poly stylene sulfonate Fe salt,

그리고 비교예 1 내지 3에서는 일반적인 용수(지하수 또는 공업용수)를 사용하였으며, 비교예 1은 분산제로 benzene sulfonate Fe염을, 비교예 2 및 3은 폴리카르본산계 분산제를 사용하였다.In Comparative Examples 1 to 3, general water (ground water or industrial water) was used, Comparative Example 1 used benzene sulfonate Fe salt as a dispersant, and Comparative Examples 2 and 3 used polycarboxylic acid-based dispersant.

상기 레미콘들의 6가 크롬의 검출량 및 암모니아의 검출량을 측정한 결과 [표 1]과 같으며, 레미콘의 일반적인 물성결과도 함께 나타내었다.
As a result of measuring the detection amount of hexavalent chromium and the detection amount of ammonia of the ready-mixed concrete is shown in [Table 1], the general physical properties of the ready-mixed concrete are also shown.

구 분division 6가 크롬
(PPM)Hexavalent chromium
(PPM) 암모니아
(PPM)ammonia
(PPM) 응결
(종결: 시간)congelation
(Termination: time) 압축강도(Kg/㎤)Compressive strength (Kg / cm3) 3일 3 days 28일28 days 실시예 1Example 1 1.01.0 00 6:306:30 246246 440440 실시예 2Example 2 1.11.1 00 6:306:30 246246 441441 실시예 3Example 3 1.11.1 00 6:106:10 252252 448448 비교예 1Comparative Example 1 7.07.0 2.52.5 6:406:40 245245 441441 비교예 2Comparative Example 2 8.88.8 3.03.0 6:406:40 246246 440440 비교예 3Comparative Example 3 8.78.7 3.03.0 6:306:30 251251 449449

[표 1]의 6가 크롬의 분석은 KS 5221방법을 사용하여 분석하였으며, 암모니아는 디지털 Gas detector를 사용하여 분석하였다.The hexavalent chromium in Table 1 was analyzed using the KS 5221 method, and ammonia was analyzed using a digital gas detector.

그리고 압축강도는 KSF 2405의 방법에 따라 시험하였다. 상기의 [표 1]에서 알 수 있듯이 용수로 음이온을 함유한 용수와 분산제로 Fe sulfonate 염을 사용한 본 발명의 실시예 1 내지 3은 일반용수를 사용한 비교예 1 내지 3과 비교하여 볼 때, 응결시간이나 압축강도는 차이가 없으나, 암모니아가 검출되지 않았고, 6가 크롬의 검출량 역시도 매우 저감되었음을 알 수 있다. And compressive strength was tested according to the method of KSF 2405. As can be seen from the above [Table 1] Examples 1 to 3 of the present invention using the water containing an anion as a water and Fe sulfonate salt as a dispersant, compared with Comparative Examples 1 to 3 using general water, the condensation time Although the compressive strength was not different, it was found that no ammonia was detected and that the amount of hexavalent chromium was also greatly reduced.

그리고 음이온을 함유한 용수를 사용하지 않고 일반 용수와 분산제로 Fe sulfonate 염을 사용한 비교예 1과 비교하여 보면, 음이온을 함유한 용수를 사용한 본 발명의 실시예 1 내지 3에 비하여 비교예 1은 6가 크롬의 환원이나 암모니아의 발생을 억제하는데 큰 효과가 없는 것으로 나타나 이들을 종합하여 보면 음이온을 함유한 용수와 분산제로 Fe sulfonate 염을 함께 사용할 경우 상승적 효과가 있는 것으로 나타났다.
And compared with Comparative Example 1 using the Fe sulfonate salt as a general water and a dispersant without using an anion-containing water, Comparative Example 1 compared to Examples 1 to 3 of the present invention using an anion-containing water There was no significant effect in reducing the reduction of chromium or suppressing the generation of ammonia. The synthesis results showed synergistic effects when Fe sulfonate salt was used as an anionic water and dispersant.

Claims (4)

시멘트 100중량부에 대하여 음이온을 함유한 용수 60~100중량부와 모래 100~170중량부 및 benzene sulfonate Fe염 또는 Poly stylene sulfonate Fe염인 분산제 5~10중량부로 이루어진 레미콘 조성물.
A ready-mixed concrete composition comprising 60 to 100 parts by weight of an anion-containing water, 100 to 170 parts by weight of sand, and 5 to 10 parts by weight of a dispersant which is a benzene sulfonate Fe salt or a poly stylene sulfonate Fe salt.
제1항에 있어서,
음이온은 (CO₃)2-, (HCO₃)1-, (SO₄)2-인 것을 특징으로 하는 레미콘
조성물.
The method of claim 1,
The anion is (CO₃) 2- , (HCO₃) 1- , (SO₄) 2-
Composition.
삭제delete 시멘트 100중량부에 대하여 음이온을 함유한 용수 60~100중량부와 모래 100~170중량부, 자갈 50~100중량부 및 benzene sulfonate Fe염 또는 Poly stylene sulfonate Fe염인 분산제 5~10중량부로 이루어진 레미콘 조성물.
A ready-mixed composition comprising 60 to 100 parts by weight of water containing anions, 100 to 170 parts by weight of sand, 50 to 100 parts by weight of gravel, and 5 to 10 parts by weight of a dispersant which is a benzene sulfonate Fe salt or a poly stylene sulfonate Fe salt. .
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101152361B1 (en) * 2011-12-22 2012-06-11 (유)코리아레미콘 Eco-friendly Concrete Additives Using Anionic Water
CN102719572A (en) * 2012-06-15 2012-10-10 福建出入境检验检疫局检验检疫技术中心 Hexavalent chromium elimination agent and application thereof
KR101951167B1 (en) * 2018-06-19 2019-02-21 주욱영 Environment-Friendly Ready-Mixed Concrete Retarder Composition
KR102261971B1 (en) * 2021-01-26 2021-06-07 박하성 Ready-mixed concrete eco admixture for reducing specific air pollutants

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Publication number Priority date Publication date Assignee Title
EP0054314A1 (en) 1980-12-17 1982-06-23 Aktieselskabet Aalborg Portland-Cement-Fabrik A method and a plant for producing a dry cement composition
KR20060005754A (en) * 2004-07-14 2006-01-18 권영철 Cement Mortar Admixture
WO2006105984A1 (en) 2005-04-08 2006-10-12 Tronox Pigments Int. Gmbh Method for producing a hydraulic binder
KR20100083084A (en) * 2009-01-12 2010-07-21 임정빈 Method for neutralized strong alkaline leachate from circulation aggregate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054314A1 (en) 1980-12-17 1982-06-23 Aktieselskabet Aalborg Portland-Cement-Fabrik A method and a plant for producing a dry cement composition
KR20060005754A (en) * 2004-07-14 2006-01-18 권영철 Cement Mortar Admixture
WO2006105984A1 (en) 2005-04-08 2006-10-12 Tronox Pigments Int. Gmbh Method for producing a hydraulic binder
KR20100083084A (en) * 2009-01-12 2010-07-21 임정빈 Method for neutralized strong alkaline leachate from circulation aggregate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101152361B1 (en) * 2011-12-22 2012-06-11 (유)코리아레미콘 Eco-friendly Concrete Additives Using Anionic Water
CN102719572A (en) * 2012-06-15 2012-10-10 福建出入境检验检疫局检验检疫技术中心 Hexavalent chromium elimination agent and application thereof
KR101951167B1 (en) * 2018-06-19 2019-02-21 주욱영 Environment-Friendly Ready-Mixed Concrete Retarder Composition
KR102261971B1 (en) * 2021-01-26 2021-06-07 박하성 Ready-mixed concrete eco admixture for reducing specific air pollutants

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