KR20200043182A - High concentration CO₂curing device for mortar and concrete - Google Patents

High concentration CO₂curing device for mortar and concrete Download PDF

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KR20200043182A
KR20200043182A KR1020180123957A KR20180123957A KR20200043182A KR 20200043182 A KR20200043182 A KR 20200043182A KR 1020180123957 A KR1020180123957 A KR 1020180123957A KR 20180123957 A KR20180123957 A KR 20180123957A KR 20200043182 A KR20200043182 A KR 20200043182A
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chamber
mortar
concrete
concentration
gas
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KR1020180123957A
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Korean (ko)
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조형규
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한국세라믹기술원
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/247Controlling the humidity during curing, setting or hardening
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/02Selection of the hardening environment
    • C04B40/0231Carbon dioxide hardening

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

Abstract

The present invention relates to a device enabling high concentration CO_2 curing on mortar and concrete. Particularly, the present invention relates to a device capable of curing mortar and concrete while maintaining CO_2 concentration of 95% or higher by forming a small scale inner space in the device, setting a CO_2 gas injection position, and using an air compressor.

Description

모르타르 및 콘크리트용 고농도 CO₂양생장치{High concentration CO₂curing device for mortar and concrete}High concentration CO₂curing device for mortar and concrete}

본 발명은 모르타르 및 콘크리트를 대상으로 고농도의 CO2 양생이 가능한 장치에 관한 것으로, 특히 소규모의 장치 내부 공간 제작, CO2 가스 주입 위치 설정, 공기 압축기 사용을 통하여 95% 이상의 CO2 농도를 유지 시키면서 모르타르 및 콘크리트의 양생이 가능한 장치에 관한 것이다.The present invention relates to a device capable of curing high concentrations of CO 2 targeting mortar and concrete, in particular, while maintaining a CO 2 concentration of 95% or more through the production of a small-scale device interior space, setting of a CO 2 gas injection location, and the use of an air compressor. It relates to a device capable of curing mortar and concrete.

지구온난화 주범인 CO2 감축의 중요성이 강조 되면서 국가 총 CO2 배출량의 40%를 차지하는 건설 산업과 특히 7~8%를 차지하는 시멘트산업에서의 CO2 배출량을 저감하기 위한 연구가 활발히 이루어지고 있다.As the importance of global warming culprit of CO 2 emissions emphasizing research for reducing CO 2 emissions in the country which accounts for particular 7-8%, and the construction industry, which accounts for 40% of total CO 2 emissions, the cement industry has been actively conducted.

또한 모르타르 및 콘크리트 등 시멘트계 2차 제품은 대기 중의 CO2와 탄산화 반응을 일어나며 최근에는 시멘트 화합물 중

Figure pat00001
-C2S와 MgO 등 CO2와 탄산화 반응을 통해서 강도 중진 및 공극 저감 등의 효과가 있는 CO2 흡수 물질에 관한 연구가 진행되고 있다.In addition, cement-based secondary products such as mortar and concrete undergo carbonation reaction with CO 2 in the atmosphere.
Figure pat00001
-C 2 S and MgO through CO 2 and carbonation reactions are being studied for CO 2 absorbing substances that have effects such as strength enhancement and void reduction.

대기 중의 CO2 농도는 약 0.04%로 낮은 농도이기 때문에 모르타르 및 콘크리트의 탄산화 실험은 KS F 2584 콘크리트의 촉진 탄산화 시험방법에 따라 CO2 5%의 챔버에서 촉진 탄산화를 실험을 실시하게 된다.Since the concentration of CO 2 in the atmosphere is low at about 0.04%, the carbonation experiment of mortar and concrete is carried out in the experiment of accelerated carbonation in a chamber of 5% CO 2 according to the accelerated carbonation test method of KS F 2584 concrete.

일반적으로 탄산화 챔버의 경우 약 10% 또는 최고 20%까지 CO2 농도를 유지할 수 있는 한계가 있다.In general, the carbonation chamber has a limit to maintain the CO 2 concentration of about 10% or up to 20%.

CO2 흡수물질의 CO2 양생, CO2 지중 저장을 위한 모르타르 및 콘크리트, 타산업에서 배출된 고농도 CO2 활용을 위한 연구를 위해서는 20% 이상뿐만 아니라 95% 이상의 고농도의 CO2를 유지할 수 있는 장치가 필요하다.A device capable of maintaining a high concentration of CO 2 over 20% as well as over 20% for research on the use of high concentration CO 2 emitted from mortar, concrete, and other industries for CO 2 curing of CO 2 absorbing materials, CO 2 underground storage Is necessary.

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로서, 아크릴을 사용하여 소규모의 내부 공간을 제작하고 내부 CO2 가스가 새지 않도록 잠금장치 제작, 공기보다 무거운 CO2 가스 주입구는 하단에, 공기 압축기와 CO2 센서 주입구는 상단에 설치하여 모르타르 및 콘크리트를 고농도 CO2로 양생시키는데 그 목적이 있다.The present invention is to solve the above problems, to produce a small interior space using acrylic and to produce a lock so that the internal CO 2 gas does not leak, the CO 2 gas inlet heavier than air is at the bottom, the air compressor and CO 2 The sensor inlet is installed on the top to cure mortar and concrete with high concentration of CO 2 .

모르타르 및 콘크리트용 고농도 CO2 양생장치에 있어서 상기의 목적을 달성하기 위한 본 발명은 내부 상태를 확인 할 수 있도록 투명 아크릴을 사용하여 모르타르 및 콘크리트 실험체를 양생할 수 있는 챔버, 챔버 하단의 CO2 가스를 주입구, 챔버 상단의 공기 압축기가 연결된 내부 공기 배출구, 챔버 상단의 CO2 센싱을 위한 센서 주입구를 설치하여 구성한 것을 특징으로 한다.The present invention for achieving the above object in a high concentration CO 2 curing apparatus for mortar and concrete is a chamber capable of curing mortar and concrete specimens using transparent acrylic so as to check the internal state, CO 2 gas at the bottom of the chamber It characterized in that it is configured by installing an inlet, an internal air outlet connected to the air compressor at the top of the chamber, and a sensor inlet for CO 2 sensing at the top of the chamber.

상술한 바와 같이, 본 발명의 모르타르 및 콘크리트용 고농도 CO2 양생장치는 공기압축기를 통하여 실내를 저압으로 하며 CO2 가스를 주입하며 배출구는 상단 CO2 가스 주입구는 하단에 설치함으로써 CO2 가스 농도를 99%이상까지도 유지할 수 있는 효과가 있다.As described above, the high-density CO 2 curing device for mortar and concrete of the present invention makes the room at a low pressure through an air compressor and injects CO 2 gas, and the outlet is installed at the top, and the top CO 2 gas inlet is installed at the bottom to increase the CO 2 gas concentration. It has the effect of maintaining up to 99% or more.

도 1은 본 발명의 모르타르 및 콘크리트용 고농도 CO2 양생장치 구성도.
101 : CO2 가스 배출구
102 : CO2 가스 흡입구
103 : CO2 챔버
104 : 공간 분할용 받침대
105 : 챔버 자물쇠
106 : 실내 공기압 게이지
107 : 실내 CO2 가스 농도 측정 센서 주입구
108 : 실내 공기 배출구
109 : 공기 압축기
1 is a block diagram of a high concentration CO 2 curing device for mortar and concrete of the present invention.
101: CO 2 gas outlet
102: CO 2 gas inlet
103: CO 2 chamber
104: space partition
105: chamber lock
106: indoor air pressure gauge
107: indoor CO 2 gas concentration measurement sensor inlet
108: indoor air outlet
109: air compressor

본 발명은 모르타르 및 콘크리트용 고농도 CO2 양생장치로써 CO2 가스 배출구(101), CO2 흡입구(102), CO2 챔버(103), 공간 분할용 받침대(104), 챔버 자물쇠(105), 실내 공기압 게이지(106), 실내 CO2 가스 농도 측정 센서 주입구(107), 실내 공기 배출구(108), 공기 압축기(109)로 구성된다.The present invention is a high concentration CO 2 curing device for mortar and concrete CO 2 gas outlet (101), CO 2 inlet (102), CO 2 chamber (103), space divider (104), chamber lock (105), indoor It consists of an air pressure gauge 106, an indoor CO 2 gas concentration measurement sensor inlet 107, an indoor air outlet 108, and an air compressor 109.

양생하고자 하는 모르타르 및 콘크리트 실험체를 챔버 내부에 두고 챔버 자물쇠를 모두 잠근다.The mortar and concrete specimen to be cured are placed inside the chamber and all the chamber locks are locked.

공기 압축기를 통해서 챔버 내부 공기를 충분히 저압이 될 때까지 진공 상태화 시킨다. 공기 압축기 압력이 낮다면 CO2 가스 주입과 챔버내 공기 배출을 반복하도록 한다. 이후 챔버 내 공기 배출 밸브를 차단하고 CO2 가스를 주입한다. 챔버 내 공기압 게이지가 (-)에서 (+)로 이동하는 것을 확인 할 수 있다. 이를 2~3회 반복한 후 CO2 가스 농도 측정 센서 주입구를 통해 내부 CO2 농도를 측정하고 원하는 농도보다 낮다면 1~2회 더 반복하도록 한다.The air inside the chamber is evacuated to a sufficiently low pressure through the air compressor. If the air compressor pressure is low, repeat the injection of CO 2 gas and exhaust of air in the chamber. Thereafter, the air discharge valve in the chamber is closed and CO 2 gas is injected. You can see that the air pressure gauge in the chamber moves from (-) to (+). After repeating this 2-3 times, measure the internal CO 2 concentration through the CO 2 gas concentration measurement sensor inlet and repeat it 1 or 2 more times if it is lower than the desired concentration.

100% 또는 원하는 CO2 농도를 확인하였다면 모든 밸브를 잠그고 고농도 CO2 양생을 시작하도록 한다.When 100% or the desired CO 2 concentration is confirmed, close all valves and start curing high concentration CO 2 .

Claims (5)

모르타르 및 콘크리트 실험체를 양생할 수 있고 내부를 들여다 볼 수 있는 투명한 아크릴로 제작한 밀실 챔버.A secret chamber made of clear acrylic that can cure mortar and concrete specimens and can look inside. 제 1항에 있어서, 상기 챔버 하단의 CO2 가스 주입 장치, 공기 압축기를 연결한 상단의 챔버 내부 공기 배출 장치 및 상단 CO2 가스 측정 센서 장치According to claim 1, CO 2 gas injection device at the bottom of the chamber, the air exhaust device inside the chamber connected to the air compressor and the upper CO 2 gas measurement sensor device 공기 압축기로 챔버 내 공기를 배출 후 CO2 가스를 챔버 내 주입하는 단계.Step of injecting air into the chamber with an air compressor and then injecting CO 2 gas into the chamber. 제 3항에 있어서, 챔버 내 원하는 CO2 농도가 될 때까지 상기의 공기 배출 및 CO2 가스 주입 단계를 반복하는 단계.4. The method of claim 3, repeating the above air venting and CO 2 gas injection steps until the desired CO 2 concentration in the chamber. 제 4항에 있어서, 모르타르 및 콘크리트 실험체를 99% 이상 또는 원하는 CO2 농도로 양생하는 단계.The method of claim 4, wherein the mortar and concrete specimens are cured to 99% or more or a desired CO 2 concentration.
KR1020180123957A 2018-10-17 2018-10-17 High concentration CO₂curing device for mortar and concrete KR20200043182A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113500687A (en) * 2021-05-26 2021-10-15 天应(深圳)生态建材科技有限公司 Method for curing magnesium-based cement concrete product and special system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113500687A (en) * 2021-05-26 2021-10-15 天应(深圳)生态建材科技有限公司 Method for curing magnesium-based cement concrete product and special system
CN113500687B (en) * 2021-05-26 2022-09-20 天应(深圳)生态建材科技有限公司 Method for curing magnesium-based cement concrete product and special system

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