KR102434978B1 - Admixture composition for concrete and concrete having the admixture composition - Google Patents
Admixture composition for concrete and concrete having the admixture composition Download PDFInfo
- Publication number
- KR102434978B1 KR102434978B1 KR1020210103738A KR20210103738A KR102434978B1 KR 102434978 B1 KR102434978 B1 KR 102434978B1 KR 1020210103738 A KR1020210103738 A KR 1020210103738A KR 20210103738 A KR20210103738 A KR 20210103738A KR 102434978 B1 KR102434978 B1 KR 102434978B1
- Authority
- KR
- South Korea
- Prior art keywords
- concrete
- weight
- parts
- admixture composition
- polycarboxylic acid
- Prior art date
Links
Classifications
-
- 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
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2641—Polyacrylates; Polymethacrylates
-
- 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
- C04B24/02—Alcohols; Phenols; Ethers
-
- 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
-
- 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
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2641—Polyacrylates; Polymethacrylates
- C04B24/2647—Polyacrylates; Polymethacrylates containing polyether side chains
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/304—Air-entrainers
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
콘크리트용 혼화제 조성물 및 상기 콘크리트용 혼화제 조성물을 포함하는 콘크리트가 개시된다. 보다 상세하게는, 콘크리트에 적당한 점도 및 유동성을 제공할 수 있는 콘크리트용 혼화제 조성물 및 상기 콘크리트용 혼화제 조성물을 포함하는 콘크리트가 개시된다.Disclosed are an admixture composition for concrete and concrete comprising the admixture composition for concrete. More specifically, an admixture composition for concrete capable of providing appropriate viscosity and fluidity to concrete, and concrete comprising the admixture composition for concrete are disclosed.
콘크리트는 단위 시멘트량이 증가할수록, 그리고 콘크리트의 강도가 증가할수록 점성이 높아진다. 물론 일반적으로 물-시멘트비(w/c)가 낮아질수록 콘크리트 점성은 이에 비례하여 높아진다. 그런데, 높은 점성은 콘크리트 타설 시에 작업 속도를 늦추고 작업시간을 연장시키는 원인이 된다. 고층건물의 상층부를 타설하거나 타설할 현장이 펌프카와 공간적으로 멀면 타설관이 길어지게 된다. 만약 이러한 타설 환경에서 점성이 높은 콘크리트의 타설 작업을 진행한다면 타설관에 부하를 일으켜 작업속도를 늦추고 타설관을 통과한 콘크리트의 유동성도 저하된다. 심지어 내부 유압을 견디기 힘든 상태가 되면 타설관이 파열되기도 하여 물적, 시간적 지체 등의 손해를 추가적으로 입게 된다.The viscosity of concrete increases as the amount of unit cement increases and the strength of concrete increases. Of course, in general, the lower the water-cement ratio (w/c), the higher the concrete viscosity. However, the high viscosity slows down the work speed and prolongs the work time when pouring concrete. If the upper part of a high-rise building is poured or the site to be poured is spatially far from the pump car, the pouring pipe becomes longer. If the pouring operation of highly viscous concrete is carried out in such a pouring environment, it causes a load on the pouring pipe to slow down the work speed, and the fluidity of the concrete passing through the pouring pipe is also reduced. Even if it becomes difficult to withstand the internal hydraulic pressure, the pouring pipe may rupture, resulting in additional damage such as material and time delay.
본 발명의 일 구현예는 콘크리트에 적당한 점도 및 유동성을 제공할 수 있는 콘크리트용 혼화제 조성물을 제공한다.One embodiment of the present invention provides an admixture composition for concrete that can provide appropriate viscosity and fluidity to concrete.
본 발명의 다른 구현예는 상기 콘크리트용 혼화제 조성물을 포함하는 콘크리트를 제공한다.Another embodiment of the present invention provides concrete comprising the admixture composition for concrete.
본 발명의 일 측면은,One aspect of the present invention is
폴리카르복실산계 분산제, 알킬벤젠술폰산염 및 알킬 알코올을 포함하는 콘크리트용 혼화제 조성물을 제공한다.It provides an admixture composition for concrete comprising a polycarboxylic acid-based dispersant, an alkylbenzenesulfonate, and an alkyl alcohol.
상기 콘크리트용 혼화제 조성물은 상기 폴리카르복실산계 분산제 100중량부, 알킬벤젠술폰산염 50~75중량부 및 알킬 알코올 25~50중량부를 포함할 수 있다.The admixture composition for concrete may include 100 parts by weight of the polycarboxylic acid-based dispersant, 50 to 75 parts by weight of an alkylbenzenesulfonate, and 25 to 50 parts by weight of an alkyl alcohol.
상기 폴리카르복실산계 분산제는 (메타)아크릴산염, 폴리에틸렌글리콜알킬에테르의 모노아크릴산에스테르, 폴리프로필렌글리콜알킬에테르의 모노아크릴산 에스테르의 공중합체 또는 이들의 조합을 포함할 수 있다.The polycarboxylic acid-based dispersant may include (meth)acrylate, a copolymer of monoacrylic acid ester of polyethylene glycol alkyl ether, monoacrylic acid ester of polypropylene glycol alkyl ether, or a combination thereof.
상기 알킬벤젠술폰산염은 C7 내지 C18의 알킬벤젠술폰산염을 포함할 수 있다. The alkylbenzenesulfonate may include a C7 to C18 alkylbenzenesulfonate.
상기 알코올은 C1 내지 C10의 알킬 알코올을 포함할 수 있다.The alcohol may include a C1 to C10 alkyl alcohol.
상기 콘크리트용 혼화제 조성물은 상기 폴리카르복실산계 분산제 100중량부에 대하여 공기연행제 0.1~5중량부를 더 포함할 수 있다.The admixture composition for concrete may further include 0.1 to 5 parts by weight of an air entraining agent based on 100 parts by weight of the polycarboxylic acid-based dispersant.
상기 콘크리트용 혼화제 조성물은 상기 폴리카르복실산계 분산제 100중량부에 대하여 소포제 0.05~1중량부를 더 포함할 수 있다.The admixture composition for concrete may further include 0.05 to 1 part by weight of an antifoaming agent based on 100 parts by weight of the polycarboxylic acid-based dispersant.
본 발명의 다른 측면은,Another aspect of the present invention is
상기 콘크리트용 혼화제 조성물을 포함하는 콘크리트를 제공한다.It provides a concrete comprising the admixture composition for concrete.
본 발명의 일 구현예에 따른 콘크리트용 혼화제 조성물은 콘크리트에 적당한 점도 및 유동성을 제공할 수 있다.The admixture composition for concrete according to an embodiment of the present invention can provide appropriate viscosity and fluidity to concrete.
따라서, 상기 콘크리트용 혼화제 조성물은 콘크리트 타설 시 작업 속도를 향상시키고, 고층건물의 상층부 타설 시에도 타설관에 부하를 일으키지 않아 작업속도를 높게 유지시킬 수 있다.Therefore, the admixture composition for concrete improves the working speed when pouring concrete, and does not cause a load on the pouring pipe even when the upper part of a high-rise building is poured, so that the working speed can be maintained high.
이하에서는 본 발명의 일 구현예에 따른 콘크리트용 혼화제 조성물에 대하여 상세히 설명한다.Hereinafter, the admixture composition for concrete according to an embodiment of the present invention will be described in detail.
본 명세서에서, “알킬 알코올”은 알킬기(CnH2n+1-)와 수산기(-OH)가 결합된 화합물을 의미한다.As used herein, "alkyl alcohol" refers to a compound in which an alkyl group (C n H 2n+1 -) and a hydroxyl group (-OH) are bonded.
본 발명의 일 구현예에 따른 콘크리트용 혼화제 조성물은 폴리카르복실산계 분산제, 알킬벤젠술폰산염 및 알킬 알코올을 포함한다.The admixture composition for concrete according to an embodiment of the present invention includes a polycarboxylic acid-based dispersant, an alkylbenzenesulfonate, and an alkyl alcohol.
상기 폴리카르복실산계 분산제는 콘크리트 제조시 시멘트 입자의 분산성능을 향상시켜 응결시간을 단축시키고 경화후 콘크리트의 강도를 증가시켜 주며, 아울러 작업성(workability)을 향상시켜 단위수량(單位水量)을 감소시켜주는 역할을 수행한다.The polycarboxylic acid-based dispersant improves the dispersing performance of cement particles during concrete production, shortens the setting time, increases the strength of concrete after hardening, and also improves workability to reduce the unit water quantity (單位水量) plays a role in enabling
상기 폴리카르복실산계 분산제는 (메타)아크릴산염, 폴리에틸렌글리콜알킬에테르의 모노아크릴산에스테르, 폴리프로필렌글리콜알킬에테르의 모노아크릴산 에스테르의 공중합체 또는 이들의 조합을 포함할 수 있다.The polycarboxylic acid-based dispersant may include (meth)acrylate, a copolymer of monoacrylic acid ester of polyethylene glycol alkyl ether, monoacrylic acid ester of polypropylene glycol alkyl ether, or a combination thereof.
상기 알킬벤젠술폰산염은 콘크리트 제조시 콘크리트의 점도를 저감시켜주는 역할을 수행한다.The alkylbenzenesulfonate serves to reduce the viscosity of concrete when manufacturing concrete.
상기 알킬벤젠술폰산염은 C7 내지 C18의 알킬벤젠술폰산염을 포함할 수 있다. 예를 들어, 상기 알킬벤젠술폰산염은 4-메틸벤젠술폰산 나트륨을 포함할 수 있다.The alkylbenzenesulfonate may include a C7 to C18 alkylbenzenesulfonate. For example, the alkylbenzenesulfonate may include sodium 4-methylbenzenesulfonate.
상기 알킬 알코올은 상기 알킬벤젠술폰산염과 마찬가지로 콘크리트 제조시 콘크리트의 점도를 저감시켜주는 역할을 수행한다.Like the alkylbenzenesulfonate, the alkyl alcohol serves to reduce the viscosity of concrete when manufacturing concrete.
상기 알킬 알코올은 C1 내지 C10의 알킬 알코올을 포함할 수 있다. 예를 들어, 상기 알킬 알코올은 이소프로판올을 포함할 수 있다.The alkyl alcohol may include a C1 to C10 alkyl alcohol. For example, the alkyl alcohol may include isopropanol.
또한, 상기 콘크리트용 혼화제 조성물은 상기 폴리카르복실산계 분산제 100중량부, 알킬벤젠술폰산염 50~75중량부 및 알킬 알코올 25~50중량부를 포함할 수 있다.In addition, the admixture composition for concrete may include 100 parts by weight of the polycarboxylic acid-based dispersant, 50 to 75 parts by weight of an alkylbenzenesulfonate, and 25 to 50 parts by weight of an alkyl alcohol.
상기 알킬벤젠술폰산염의 함량이 상기 폴리카르복실산계 분산제 100중량부에 대하여 50중량부 미만이면 콘크리트 제조시 콘크리트의 점도를 저감시켜주는 효과가 미미하고, 75중량부를 초과하면 최종 콘크리트의 강도가 저하된다.When the content of the alkylbenzenesulfonate is less than 50 parts by weight based on 100 parts by weight of the polycarboxylic acid-based dispersant, the effect of reducing the viscosity of concrete during concrete production is insignificant, and when it exceeds 75 parts by weight, the strength of the final concrete is reduced. .
상기 알킬 알코올의 함량이 상기 폴리카르복실산계 분산제 100중량부에 대하여 25중량부 미만이면 콘크리트 제조시 콘크리트의 점도를 저감시켜주는 효과가 미미하고, 50중량부를 초과하면 콘크리트의 응결이 지연될뿐만 아니라 최종 콘크리트의 강도가 저하된다.When the content of the alkyl alcohol is less than 25 parts by weight based on 100 parts by weight of the polycarboxylic acid-based dispersant, the effect of reducing the viscosity of concrete during concrete production is insignificant, and when it exceeds 50 parts by weight, the setting of concrete is delayed as well as The strength of the final concrete is reduced.
또한, 상기 콘크리트용 혼화제 조성물은 상기 폴리카르복실산계 분산제 100중량부에 대하여 공기연행제 0.1~5중량부를 더 포함할 수 있다.In addition, the admixture composition for concrete may further include 0.1 to 5 parts by weight of an air entraining agent based on 100 parts by weight of the polycarboxylic acid-based dispersant.
상기 공기연행제는 콘크리트 제조시 콘크리트내에 마이크론(㎛) 단위의 미세 기공을 형성함으로써 상기 콘크리트의 작업성을 향상시키고 물 흡수율을 감소시키지만, 작업가능시간에는 영향을 미치지 않는다. 이러한 공기연행제는 소듐 C12-C16 알파 올레핀 설포네이트, 라우릴 에틸렌 황산나트륨(SLES: sodium lauryl ethylene sulfate)또는 이들의 조합을 포함할 수 있다.The air entraining agent improves the workability of the concrete and reduces the water absorption rate by forming micropores in the micron (㎛) unit in the concrete when manufacturing the concrete, but does not affect the workable time. The air entraining agent may include sodium C12-C16 alpha olefin sulfonate, sodium lauryl ethylene sulfate (SLES), or a combination thereof.
또한, 상기 콘크리트용 혼화제 조성물은 상기 폴리카르복실산계 분산제 100중량부에 대하여 소포제 0.05~1중량부를 더 포함할 수 있다.In addition, the admixture composition for concrete may further include 0.05 to 1 part by weight of an antifoaming agent based on 100 parts by weight of the polycarboxylic acid-based dispersant.
상기 소포제는 콘크리트 제조시 기포 발생을 감소시켜 그린밀도를 증가시키고, 이는 결국 최종 콘크리트 제품의 강도를 높이는 결과를 가져온다. The antifoaming agent increases the green density by reducing the generation of bubbles during concrete production, which in turn results in increasing the strength of the final concrete product.
상기 소포제로는 알콜계 소포제, 실리콘계 소포제, 지방산계 소포제, 오일계 소포제, 에스테르계 소포제, 옥시알킬렌계 소포제 등을 단독으로 또는 혼합하여 사용할 수 있으나, 이에 제한되는 것은 아니며, 당업계에서 통상적으로 사용되는 종류가 사용될 수도 있다. 상기 알콜계 소포제로는 글리콜(glycol) 등을 사용할 수 있다. 상기 실리콘계 소포제로는 디메틸실리콘유, 폴리오가노실록산, 플루오로실리콘유 등을 사용할 수 있다. 상기 지방산계 소포제로는 스테아린산, 올레인산 등을 사용할 수 있다. 상기 오일계 소포제로는 등유, 동식물유, 피마자유 등을 사용할 수 있다. 상기 에스테르계 소포제로는 솔리톨트리올레이트, 글리세롤모노리시놀레이트 등을 사용할 수 있다. 상기 옥시알킬렌계 소포제로는 폴리옥시알킬렌, 아세틸렌에테르류, 폴리옥시알킬렌지방산에스테르, 폴리옥시알킬렌알킬아민 등을 사용할 수 있다.Examples of the anti-foaming agent include alcohol-based anti-foaming agents, silicone-based anti-foaming agents, fatty acid-based anti-foaming agents, oil-based anti-foaming agents, ester-based anti-foaming agents, oxyalkylene-based anti-foaming agents, and the like, but are not limited thereto, and are commonly used in the art. Any kind may be used. As the alcohol-based antifoaming agent, glycol and the like may be used. As the silicone-based antifoaming agent, dimethyl silicone oil, polyorganosiloxane, fluorosilicone oil, etc. may be used. As the fatty acid-based antifoaming agent, stearic acid, oleic acid, and the like may be used. As the oil-based antifoaming agent, kerosene, animal or vegetable oil, castor oil, etc. may be used. As the ester-based antifoaming agent, solitol trioleate, glycerol monoricinolate, and the like may be used. As the oxyalkylene-based antifoaming agent, polyoxyalkylene, acetylene ethers, polyoxyalkylene fatty acid esters, polyoxyalkylenealkylamines and the like can be used.
한편, 본 발명의 다른 구현예는 전술한 콘크리트용 혼화제 조성물, 시멘트 및 골재를 포함하는 콘크리트를 제공한다. 본 명세서에서, 용어 「콘크리트」는 전술한 콘크리트용 혼화제 조성물, 시멘트 및 골재를 건비빔한 것을 의미하거나, 또는 전술한 콘크리트용 혼화제 조성물, 시멘트 및 골재를 물과 혼합하여 반죽한 것을 의미한다.On the other hand, another embodiment of the present invention provides a concrete comprising the above-described admixture composition for concrete, cement and aggregate. In the present specification, the term "concrete" means the dry bibim of the above-mentioned admixture composition for concrete, cement and aggregate, or refers to kneading the above-mentioned admixture composition for concrete, cement and aggregate with water.
상기와 같은 구성을 갖는 콘크리트는 적당한 점도 및 유동성을 갖기 때문에 콘크리트 타설 시 작업 속도가 빠르고, 고층건물의 상층부 타설 시에도 타설관에 부하를 일으키지 않아 작업속도를 높게 유지할 수 있다.Concrete having the above configuration has a suitable viscosity and fluidity, so the work speed is fast when pouring concrete, and it does not cause a load on the pouring pipe even when pouring the upper part of a high-rise building, so that the working speed can be maintained high.
상기 콘크리트는 상기 콘크리트 조성물의 건조 중량 100중량부에 대하여 상기 콘크리트용 혼화제 조성물 0.2~1중량부를 포함할 수 있다.The concrete may contain 0.2 to 1 parts by weight of the admixture composition for concrete based on 100 parts by weight of the dry weight of the concrete composition.
상기 시멘트로는 포틀랜드 시멘트(Portland cement), 플라이 애쉬 시멘트(fly ash cement), 알루미늄 함유 시멘트(aluminous cement) 등의 수경성 시멘트가 사용될 수 있으며, 컬러 시멘트 등이 사용될 수도 있다. 또한, 필요할 경우, 반수석고, 소석회, 고분자 분말, 탄산칼슘, 및/또는 점토 등이 상기 시멘트와 함께 상기 콘크리트에 사용될 수 있다. 상기 골재로는 강모래, 산모래, 규사, 경량 골재(예를 들어, 펄라이트(pearlite))등이 사용될 수 있다.As the cement, hydraulic cement such as Portland cement, fly ash cement, aluminum-containing cement may be used, and color cement may be used. In addition, if necessary, hemihydrate gypsum, slaked lime, polymer powder, calcium carbonate, and/or clay may be used in the concrete together with the cement. As the aggregate, river sand, mountain sand, silica sand, lightweight aggregate (eg, pearlite), etc. may be used.
이하, 실시예들을 들어 본 발명에 관하여 더욱 상세히 설명하지만, 본 발명이 이러한 실시예들에 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.
실시예Example
실시예 1-1: 콘크리트용 혼화제 조성물의 제조Example 1-1: Preparation of admixture composition for concrete
폴리카르복실산계 분산제 100중량부, 알킬벤젠술폰산염 65중량부, 알킬 알코올 40중량부, 공기연행제 1.5중량부 및 소포제 0.15중량부를 혼합하여 콘크리트용 혼화제 조성물을 제조하였다. 100 parts by weight of a polycarboxylic acid-based dispersant, 65 parts by weight of an alkylbenzenesulfonate, 40 parts by weight of an alkyl alcohol, 1.5 parts by weight of an air entraining agent, and 0.15 parts by weight of an antifoaming agent for concrete An admixture composition was prepared.
실시예 1-2: 콘크리트용 혼화제 조성물의 제조Example 1-2: Preparation of admixture composition for concrete
폴리카르복실산계 분산제 100중량부, 알킬벤젠술폰산염 50중량부, 알킬 알코올 40중량부, 공기연행제 1.5중량부 및 소포제 0.15중량부를 혼합하여 콘크리트용 혼화제 조성물을 제조하였다. An admixture composition for concrete was prepared by mixing 100 parts by weight of a polycarboxylic acid-based dispersant, 50 parts by weight of an alkylbenzenesulfonate, 40 parts by weight of an alkyl alcohol, 1.5 parts by weight of an air entraining agent, and 0.15 parts by weight of an antifoaming agent.
실시예 1-3: 콘크리트용 혼화제 조성물의 제조Example 1-3: Preparation of admixture composition for concrete
폴리카르복실산계 분산제 100중량부, 알킬벤젠술폰산염 70중량부, 알킬 알코올 40중량부, 공기연행제 1.5중량부 및 소포제 0.15중량부를 혼합하여 콘크리트용 혼화제 조성물을 제조하였다. An admixture composition for concrete was prepared by mixing 100 parts by weight of a polycarboxylic acid-based dispersant, 70 parts by weight of an alkylbenzenesulfonate salt, 40 parts by weight of an alkyl alcohol, 1.5 parts by weight of an air entraining agent, and 0.15 parts by weight of an antifoaming agent.
실시예 1-4: 콘크리트용 혼화제 조성물의 제조Example 1-4: Preparation of admixture composition for concrete
폴리카르복실산계 분산제 100중량부, 알킬벤젠술폰산염 65중량부, 알킬 알코올 25중량부, 공기연행제 1.5중량부 및 소포제 0.15중량부를 혼합하여 콘크리트용 혼화제 조성물을 제조하였다. An admixture composition for concrete was prepared by mixing 100 parts by weight of a polycarboxylic acid-based dispersant, 65 parts by weight of an alkylbenzenesulfonate, 25 parts by weight of an alkyl alcohol, 1.5 parts by weight of an air entraining agent, and 0.15 parts by weight of an antifoaming agent.
실시예 1-5: 콘크리트용 혼화제 조성물의 제조Example 1-5: Preparation of admixture composition for concrete
폴리카르복실산계 분산제 100중량부, 알킬벤젠술폰산염 65중량부, 알킬 알코올 50중량부, 공기연행제 1.5중량부 및 소포제 0.15중량부를 혼합하여 콘크리트용 혼화제 조성물을 제조하였다. An admixture composition for concrete was prepared by mixing 100 parts by weight of a polycarboxylic acid-based dispersant, 65 parts by weight of an alkylbenzenesulfonate, 50 parts by weight of an alkyl alcohol, 1.5 parts by weight of an air entraining agent, and 0.15 parts by weight of an antifoaming agent.
비교예 1-1: 콘크리트용 혼화제 조성물의 제조Comparative Example 1-1: Preparation of admixture composition for concrete
폴리카르복실산계 분산제 100중량부, 알킬벤젠술폰산염 45중량부, 알킬 알코올 40중량부, 공기연행제 1.5중량부 및 소포제 0.15중량부를 혼합하여 콘크리트용 혼화제 조성물을 제조하였다. An admixture composition for concrete was prepared by mixing 100 parts by weight of a polycarboxylic acid-based dispersant, 45 parts by weight of an alkylbenzenesulfonate, 40 parts by weight of an alkyl alcohol, 1.5 parts by weight of an air entraining agent, and 0.15 parts by weight of an antifoaming agent.
비교예 1-2: 콘크리트용 혼화제 조성물의 제조Comparative Example 1-2: Preparation of admixture composition for concrete
폴리카르복실산계 분산제 100중량부, 알킬벤젠술폰산염 80중량부, 알킬 알코올 40중량부, 공기연행제 1.5중량부 및 소포제 0.15중량부를 혼합하여 콘크리트용 혼화제 조성물을 제조하였다. An admixture composition for concrete was prepared by mixing 100 parts by weight of a polycarboxylic acid-based dispersant, 80 parts by weight of an alkylbenzenesulfonate, 40 parts by weight of an alkyl alcohol, 1.5 parts by weight of an air entraining agent, and 0.15 parts by weight of an antifoaming agent.
비교예 1-3: 콘크리트용 혼화제 조성물의 제조Comparative Example 1-3: Preparation of admixture composition for concrete
폴리카르복실산계 분산제 100중량부, 알킬벤젠술폰산염 65중량부, 알킬 알코올 20중량부, 공기연행제 1.5중량부 및 소포제 0.15중량부를 혼합하여 콘크리트용 혼화제 조성물을 제조하였다. An admixture composition for concrete was prepared by mixing 100 parts by weight of a polycarboxylic acid-based dispersant, 65 parts by weight of an alkylbenzenesulfonate, 20 parts by weight of an alkyl alcohol, 1.5 parts by weight of an air entraining agent, and 0.15 parts by weight of an antifoaming agent.
비교예 1-4: 콘크리트용 혼화제 조성물의 제조Comparative Example 1-4: Preparation of admixture composition for concrete
폴리카르복실산계 분산제 100중량부, 알킬벤젠술폰산염 65중량부, 알킬 알코올 55중량부, 공기연행제 1.5중량부 및 소포제 0.15중량부를 혼합하여 콘크리트용 혼화제 조성물을 제조하였다. An admixture composition for concrete was prepared by mixing 100 parts by weight of a polycarboxylic acid-based dispersant, 65 parts by weight of an alkylbenzenesulfonate, 55 parts by weight of an alkyl alcohol, 1.5 parts by weight of an air entraining agent, and 0.15 parts by weight of an antifoaming agent.
상기 실시예 1-1~1-5 및 비교예 1-1~1-4에서 제조된 콘크리트용 혼화제 조성물의 원료 및 조성을 하기 표 1에 나타내었다.The raw materials and compositions of the admixture composition for concrete prepared in Examples 1-1 to 1-5 and Comparative Examples 1-1 to 1-4 are shown in Table 1 below.
분산제*1 polycarboxylic acid
Dispersant *1
술폰산염*2 alkylbenzene
Sulfonate *2
알코올*3 alkyl
alcohol *3
*1: (메타)아크릴산 나트륨*1: sodium (meth)acrylate
*2: 4-메틸벤젠술폰산 나트륨*2: sodium 4-methylbenzenesulfonate
*3: 이소프로판올*3: isopropanol
*4: sodium alpha olefin (C14~C16) Sulfonate*4: sodium alpha olefin (C14~C16) Sulfonate
*5: 폴리옥시알킬렌*5: polyoxyalkylene
실시예 2-1~2-5 및 비교예 2-1~2-4: 콘크리트의 제조Examples 2-1 to 2-5 and Comparative Examples 2-1 to 2-4: Preparation of concrete
제조예 1: 콘크리트의 제조(혼화제 조성물 미첨가)Preparation Example 1: Preparation of concrete (no admixture composition added)
시멘트(아세아 시멘트사 제품, 보통 포틀랜드 시멘트):모래:탄산칼슘:RDP(Redispersible Polymer Powder, Wacker사, Vinapas RE5012T)를 35:59:3:3의 중량비로 혼합하여 혼화제 조성물이 첨가되지 않은 콘크리트를 제조하였다.Cement (product of Asia Cement, usually Portland cement): sand: calcium carbonate: RDP (Redispersible Polymer Powder, Wacker, Vinapas RE5012T) is mixed in a weight ratio of 35:59:3:3 to create concrete without admixture composition. prepared.
제조예 2: 콘크리트용 혼화제 조성물의 첨가Preparation Example 2: Addition of admixture composition for concrete
상기 제조예 1에서 제조한 콘크리트 시료에 상기 실시예 1-1~1-5 및 비교예 1-1~1-4 중 어느 한 실시예 또는 비교예에서 제조한 콘크리트용 혼화제 조성물을 1중량%의 비율로 첨가한 후 건비빔하였다. 실시예 2-1~2-5 및 비교예 2-1~2-4에 대하여 콘크리트용 혼화제 조성물의 종류를 바꿔가면서 상기 과정을 반복하였다.To the concrete sample prepared in Preparation Example 1, 1% by weight of the admixture composition for concrete prepared in any one of Examples 1-1 to 1-5 and Comparative Examples 1-1 to 1-4 or Comparative Example After adding in the ratio, dry bibim was performed. For Examples 2-1 to 2-5 and Comparative Examples 2-1 to 2-4, the above process was repeated while changing the type of the admixture composition for concrete.
제조예 3: 콘크리트의 제조(물 첨가)Preparation Example 3: Preparation of concrete (addition of water)
상기 제조예 2에서 제조한 콘크리트 시료 각각에 물을 부은 후 기계믹서를 이용하여 1분 30초간 믹싱하여 콘크리트를 제조하였다. 이때, 물은 각각의 콘크리트가 동일한 점도(500±50 kcps)를 나타내도록 적당량 첨가하였다. After pouring water into each of the concrete samples prepared in Preparation Example 2, the concrete was prepared by mixing for 1 minute and 30 seconds using a mechanical mixer. At this time, water was added in an appropriate amount so that each concrete exhibits the same viscosity (500±50 kcps).
평가예evaluation example
상기 실시예 2-1~2-5 및 비교예 2-1~2-4에서 제조한 각각의 콘크리트의 물성들을 하기와 같은 방법으로 평가하여, 그 평가 결과를 하기 표 2에 나타내었다.The physical properties of each concrete prepared in Examples 2-1 to 2-5 and Comparative Examples 2-1 to 2-4 were evaluated in the following manner, and the evaluation results are shown in Table 2 below.
(1) Flow 및 T500(1) Flow and T500
KS F 2594에 따라 Flow를 측정하였다. T500은 Flow 500mm 도달시간을 의미한다.Flow was measured according to KS F 2594. T 500 means the time to reach 500mm of flow.
(2) 점도(2) Viscosity
BrookField 점도계(spindle: S63)로 콘크리트의 점도를 측정하였다.The viscosity of concrete was measured with a BrookField viscometer (spindle: S63).
(3) 응결지연(3) Delay in condensation
관입저항침에 의한 모르타르 응결시간 측정방법(KS F 2436)에 따라 20℃에서콘크리트의 응결시간을 측정하였다. The setting time of the concrete was measured at 20°C according to the method for measuring the setting time of mortar using a penetration resistance needle (KS F 2436).
(4) 압축강도(4) Compressive strength
콘크리트의 경화물의 압축강도를 KS F 2405에 따라 측정하였다. The compressive strength of the hardened concrete of concrete was measured according to KS F 2405.
(sec)T 500
(sec)
(cPs)viscosity
(cPs)
(hr:min)setting time
(hr:min)
상기 표 2를 참조하면, 실시예 2-1~2-5에서 제조된 콘크리트는 Flow가 길고, T500이 짧고, 점도가 낮고, 초결 시간 및 종결 시간이 짧고, 압축강도가 우수한 것으로 나타났다.Referring to Table 2, the concrete prepared in Examples 2-1 to 2-5 showed a long flow, a short T500, a low viscosity, a short initial setting time and a short termination time, and excellent compressive strength.
그러나, 비교예 2-1~2-4에서 제조된 콘크리트는 Flow는 길지만, T500이 길거나, 점도가 높거나, 초결 시간 및 종결 시간이 길거나, 및/또는 압축강도가 낮은 것으로 나타났다.However, the concrete prepared in Comparative Examples 2-1 to 2-4 showed a long flow, but a long T500, a high viscosity, a long initial setting time and a long termination time, and/or a low compressive strength.
본 발명은 실시예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 본 기술 분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 다른 실시예가 가능하다는 점을 이해할 것이다. 따라서, 본 발명의 진정한 기술적 보호 범위는 첨부된 특허청구범위의 기술적 사상에 의하여 정해져야 할 것이다.Although the present invention has been described with reference to embodiments, these are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.
Claims (8)
상기 콘크리트용 혼화제 조성물은 상기 폴리카르복실산계 분산제 100중량부, 상기 알킬벤젠술폰산염 50~75중량부 및 상기 알킬 알코올 25~50중량부를 포함하고,
상기 콘크리트용 혼화제 조성물에서 상기 공기연행제의 함량은 상기 폴리카르복실산계 분산제 100중량부에 대하여 0.1~5중량부이고,
상기 콘크리트용 혼화제 조성물에서 상기 소포제의 함량은 상기 폴리카르복실산계 분산제 100중량부에 대하여 0.05~1중량부이고,
상기 폴리카르복실산계 분산제는 (메타)아크릴산염, 폴리에틸렌글리콜알킬에테르의 모노아크릴산에스테르, 폴리프로필렌글리콜알킬에테르의 모노아크릴산 에스테르의 공중합체 또는 이들의 조합을 포함하고,
상기 알킬벤젠술폰산염은 C7 내지 C18의 알킬벤젠술폰산염을 포함하고,
상기 알코올은 C1 내지 C10의 알킬 알코올을 포함하고,
상기 콘크리트용 혼화제 조성물은 T500이 6sec 미만이고, 점도가 800 cPs 미만이고, 초결시간이 8hr 미만이고, 종결시간이 10hr 미만이고, 2일차 압축강도가 22MPa 초과이고, 7일차 압축강도가 36.5MPa 초과이고, 28일차 압축강도가 47MPa이상인 콘크리트를 제공하는 콘크리트용 혼화제 조성물.An admixture composition for concrete, wherein the admixture composition for concrete consists of a polycarboxylic acid-based dispersant, an alkylbenzenesulfonate, an alkyl alcohol, an air entraining agent and an antifoaming agent,
The admixture composition for concrete comprises 100 parts by weight of the polycarboxylic acid-based dispersant, 50 to 75 parts by weight of the alkylbenzenesulfonate, and 25 to 50 parts by weight of the alkyl alcohol,
The content of the air entraining agent in the admixture composition for concrete is 0.1 to 5 parts by weight based on 100 parts by weight of the polycarboxylic acid-based dispersant,
The content of the antifoaming agent in the admixture composition for concrete is 0.05 to 1 part by weight based on 100 parts by weight of the polycarboxylic acid-based dispersant,
The polycarboxylic acid-based dispersant includes (meth)acrylate, a copolymer of monoacrylic acid ester of polyethylene glycol alkyl ether, monoacrylic acid ester of polypropylene glycol alkyl ether, or a combination thereof,
The alkylbenzenesulfonate includes a C7 to C18 alkylbenzenesulfonate,
The alcohol includes a C1 to C10 alkyl alcohol,
The admixture composition for concrete has a T 500 of less than 6 sec, a viscosity of less than 800 cPs, an initial setting time of less than 8 hr, a termination time of less than 10 hr, a second-day compressive strength of more than 22 MPa, and a seventh-day compressive strength of 36.5 MPa. An admixture composition for concrete to provide concrete having a 28-day compressive strength of 47 MPa or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020210103738A KR102434978B1 (en) | 2021-08-06 | 2021-08-06 | Admixture composition for concrete and concrete having the admixture composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020210103738A KR102434978B1 (en) | 2021-08-06 | 2021-08-06 | Admixture composition for concrete and concrete having the admixture composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR102434978B1 true KR102434978B1 (en) | 2022-08-23 |
Family
ID=83093014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020210103738A KR102434978B1 (en) | 2021-08-06 | 2021-08-06 | Admixture composition for concrete and concrete having the admixture composition |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR102434978B1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR940010094A (en) * | 1992-10-08 | 1994-05-24 | 김광호 | Semiconductor memory device with low noise output structure |
| KR20070041394A (en) * | 2005-10-14 | 2007-04-18 | 가부시키가이샤 닛폰 쇼쿠바이 | Cement additive |
| KR20070074004A (en) * | 2004-01-06 | 2007-07-10 | 가부시키가이샤 닛폰 쇼쿠바이 | Cement admixture |
| KR20130069952A (en) * | 2011-12-19 | 2013-06-27 | 호서대학교 산학협력단 | Concrete thickener for anti-washout property and method for the production thereof |
-
2021
- 2021-08-06 KR KR1020210103738A patent/KR102434978B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR940010094A (en) * | 1992-10-08 | 1994-05-24 | 김광호 | Semiconductor memory device with low noise output structure |
| KR20070074004A (en) * | 2004-01-06 | 2007-07-10 | 가부시키가이샤 닛폰 쇼쿠바이 | Cement admixture |
| KR20070041394A (en) * | 2005-10-14 | 2007-04-18 | 가부시키가이샤 닛폰 쇼쿠바이 | Cement additive |
| KR20130069952A (en) * | 2011-12-19 | 2013-06-27 | 호서대학교 산학협력단 | Concrete thickener for anti-washout property and method for the production thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0008094B1 (en) | Additive for concrete or cement mortar and its use as pumping aid | |
| KR101549612B1 (en) | Rapid hardening cement concrete composite and repairing method of road pavement using the composite | |
| TWI414504B (en) | Hydraulic composition | |
| JP2007534605A (en) | Cement mortar for tiles using moisture retention agent | |
| MX2013013755A (en) | Admixtures for shrink crack reduction of portland cement-based mortars and concretes. | |
| EP0342609B1 (en) | Water resistance additive for cementitious compositions | |
| US20220153644A1 (en) | Shrinkage reducer for mineral binder composition and its use | |
| CN105503106A (en) | Quickly-hardened high-strength ceramic tile adhesive | |
| CN110183135B (en) | Quick-setting agent, quick-setting polymer cement waterproof slurry and preparation method | |
| CN108793869B (en) | High-strength superfine ordinary silica cement-based self-leveling mortar and preparation method thereof | |
| KR101674535B1 (en) | Admixture composition for tile cement mortar and tile cement mortar composition having the admixture composition | |
| JP2009132557A (en) | Admixture for polymer cement grout | |
| JP2007153641A (en) | Cement additive and cement composition using the same | |
| JP2014227318A (en) | Self-leveling material | |
| JP2008189526A (en) | Admixture for grout and cement composition for grout | |
| CN113860821B (en) | Green environment-friendly lightweight aggregate concrete and preparation method thereof | |
| RU2689959C1 (en) | Dry mixture for leveling of vessels decks | |
| TW201615594A (en) | Water-settable composition | |
| JP5575728B2 (en) | Cellulose ethers suitable for extrusion of cement-bound articles with improved properties | |
| JP4626915B2 (en) | Blackening suppression method for hardened concrete | |
| JP6372886B2 (en) | Low whiteness self-leveling composition | |
| US20150307399A1 (en) | Additive for hydraulically setting mixtures | |
| KR102434978B1 (en) | Admixture composition for concrete and concrete having the admixture composition | |
| JP6573435B2 (en) | Admixture for aqueous cement composition and method of air entrainment to mortar or concrete using the same and manufacturing method | |
| KR102423871B1 (en) | Crack resisting hybrid fiber-reinforced cementitious mortar composition having excellent repairing method using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AMND | Amendment | ||
| E601 | Decision to refuse application | ||
| X091 | Application refused [patent] | ||
| AMND | Amendment | ||
| X701 | Decision to grant (after re-examination) | ||
| GRNT | Written decision to grant |