KR102233674B1 - Composition for improvement of compressive strength of concreate comprising noble Bacillus strain mixture or culture thereof as an effective component - Google Patents

Composition for improvement of compressive strength of concreate comprising noble Bacillus strain mixture or culture thereof as an effective component Download PDF

Info

Publication number
KR102233674B1
KR102233674B1 KR1020200005853A KR20200005853A KR102233674B1 KR 102233674 B1 KR102233674 B1 KR 102233674B1 KR 1020200005853 A KR1020200005853 A KR 1020200005853A KR 20200005853 A KR20200005853 A KR 20200005853A KR 102233674 B1 KR102233674 B1 KR 102233674B1
Authority
KR
South Korea
Prior art keywords
bacillus
concrete
accession
thuringiensisis
strain
Prior art date
Application number
KR1020200005853A
Other languages
Korean (ko)
Other versions
KR20200094660A (en
Inventor
하호윤
Original Assignee
주식회사 아시안글로벌
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 아시안글로벌 filed Critical 주식회사 아시안글로벌
Priority to KR1020200005853A priority Critical patent/KR102233674B1/en
Publication of KR20200094660A publication Critical patent/KR20200094660A/en
Priority to KR1020200161166A priority patent/KR102437410B1/en
Application granted granted Critical
Publication of KR102233674B1 publication Critical patent/KR102233674B1/en

Links

Classifications

    • 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
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions 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
    • 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
    • C04B14/00Use 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
    • C04B14/02Granular materials, e.g. microballoons
    • C04B14/04Silica-rich materials; Silicates
    • C04B14/047Zeolites
    • 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
    • C04B14/00Use 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
    • C04B14/02Granular materials, e.g. microballoons
    • C04B14/04Silica-rich materials; Silicates
    • C04B14/06Quartz; Sand
    • 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
    • C04B14/00Use 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
    • C04B14/02Granular materials, e.g. microballoons
    • C04B14/04Silica-rich materials; Silicates
    • C04B14/20Mica; Vermiculite
    • C04B14/202Vermiculite
    • 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
    • C04B14/00Use 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
    • C04B14/02Granular materials, e.g. microballoons
    • C04B14/04Silica-rich materials; Silicates
    • C04B14/20Mica; Vermiculite
    • C04B14/204Mica; Vermiculite expanded
    • 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
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0001Living organisms, e.g. microorganisms, or enzymes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use 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)
  • Civil Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

본 발명은 콘크리트의 압축강도를 증진시키는 동시에 휘발성 유기 화합물을 저감시킬 수 있는 바실러스 메가테리움(Bacillus megaterium) HH1 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2의 균주 혼합물 또는 그 배양액을 유효성분으로 포함하는 콘크리트 강도 증진용, 이를 이용한 강도가 증진된 콘크리트의 제조방법 및 이에 포함되는 신규 균주들에 관한 것이다. The present invention includes a strain mixture of Bacillus megaterium HH1 and Bacillus thuringiensisis HH2 or a culture solution thereof, which can reduce volatile organic compounds while improving the compressive strength of concrete as an active ingredient. It relates to a method for improving the strength of concrete, a method of manufacturing concrete with increased strength using the same, and new strains contained therein.

Description

신규 바실러스 균주 혼합물 또는 그 배양액을 유효성분으로 포함하는 콘크리트 강도 증진용 조성물 및 그 이용방법{Composition for improvement of compressive strength of concreate comprising noble Bacillus strain mixture or culture thereof as an effective component}Composition for improvement of compressive strength of concreate comprising noble Bacillus strain mixture or culture thereof as an effective component

본 발명은 바실러스 메가테리움(Bacillus megaterium) HH1 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2의 균주 혼합물 또는 그 배양액을 유효성분으로 포함하는 콘크리트 강도 증진용 조성물, 이를 이용한 강도가 증진된 콘크리트의 제조방법 및 이에 포함되는 신규 균주들에 관한 것이다. The present invention is a composition for enhancing concrete strength comprising a strain mixture of Bacillus megaterium HH1 and Bacillus thuringiensisis HH2 or a culture solution thereof as an active ingredient, and a method for producing concrete with enhanced strength using the same And it relates to the new strains contained therein.

콘크리트 구조물은 반영구적인 수명을 구비하고 있으나, 날로 심각해지는 대기 오염과 염해, 중성화, 화학적 부식 등이 콘크리트의 부식을 유발하고, 이로 인하여 철근 콘크리트의 주재료인 철근을 부식시켜 구조물의 수명을 현저히 단축시키는 문제점이 있다.Concrete structures have a semi-permanent lifespan, but increasingly severe air pollution, salt damage, neutralization, chemical corrosion, etc. induce corrosion of concrete, which significantly shortens the lifespan of the structure by corroding the reinforcing bar, the main material of reinforced concrete. There is a problem.

콘크리트는 시멘트의 수화반응으로 인하여 생성된 Ca(OH)에 의해 강알칼리성을 가지고 있기 때문에 콘크리트에 매립되어 있는 철근은 일반적으로 부식되지 않는다. 그러나 공기 중의 탄산가스의 작용을 장기적으로 받게 되면 콘크리트가 알칼리성을 상실해가는 중성화가 발생된다. 이와 같은 중성화는 콘크리트 표면에서 내부로 진행하며 콘크리트는 탄산가스와 반응한 중량만큼 무거워지고 치밀해진다. 콘크리트가 중성화되고 물과 공기가 침투하면 철이 녹쓸고 철근의 체적이 팽창하여 콘크리트에 균열이 발생하여 구조물의 내하력과 내구성이 떨어지게 된다.Because concrete has strong alkalinity by Ca(OH) generated by the hydration reaction of cement, the reinforcing bars embedded in concrete are generally not corroded. However, if it is subjected to the action of carbon dioxide gas in the air for a long time, neutralization occurs in which the concrete loses its alkaline properties. Such neutralization proceeds from the concrete surface to the inside, and the concrete becomes heavier and dense by the weight reacted with carbon dioxide gas. When the concrete is neutralized and water and air infiltrate, the steel is rusted and the volume of the reinforcing bar expands, causing cracks in the concrete, reducing the load-bearing capacity and durability of the structure.

또한, 산소공급이 되지 않거나 침전물과 콘크리트에 부착되는 경우 등에 의하여 혐기상태로 되며 하도수 및 폐수 중에 포함되어 있는 황산염의 대부분이 황산염환원세균에 의하여 황화수소를 발생한다. 하수 및 폐된 황화수소는 콘크리트 상부에 결로 및 비말수에 의해 용해되며, 용해된 황화수소는 황산화세균의 작용에 의하여 황산을 생성한다. 또한 포틀랜드 시멘트의 경화물은 다량의 수산화칼슘을 함유하며, 이는 알칼리성을 나타내어 산류와 만나면 중화하여 각종의 복염을 생성한다.In addition, when oxygen is not supplied or adhered to sediment and concrete, it becomes anaerobic, and most of the sulfates contained in sewage and wastewater generate hydrogen sulfide by sulfate-reducing bacteria. Sewage and waste hydrogen sulfide are dissolved by condensation and splash water on the upper part of the concrete, and the dissolved hydrogen sulfide generates sulfuric acid by the action of sulfated bacteria. In addition, the hardened product of Portland cement contains a large amount of calcium hydroxide, which exhibits alkalinity and neutralizes when it encounters acids, thereby generating various double salts.

콘크리트는 이들 염의 용출과 결정화 등에 의하여 침식, 붕괴하며, 강산은 콘크리트 중의 경화생성물인 알루민산칼슘이나 규산칼슘까지도 분해한다. 일반적인 산은 다소 정도의 차이는 있으나 시멘트수화물 및 수산화칼슘을 분해하여 침식한다. 침식의 정도는 무기산이 유기산 보다 심하다.Concrete erodes and collapses due to the elution and crystallization of these salts, and strong acids decompose even calcium aluminate and calcium silicate, which are hardened products in concrete. Although there are some differences in general acid, it erodes by decomposing cement hydrate and calcium hydroxide. The degree of erosion is worse for inorganic acids than organic acids.

따라서 기존 철근콘크리트 구조물의 염해, 중성화 및 화학적 부식에 피해를 입은 구조물에 대한 보강공법으로 표면탈락 및 박리 부분에 일반적인 열화 부분을 치핑한 후 신구접착제를 도포하고 단면복구 폴리머 모르타르를 도포한 다음, 철판, 탄소섬유 및 탄소섬유 패널을 부착시켜 콘크리트 내하력을 증가시켜주는 보강공법이 시행되고 있다.Therefore, it is a reinforcement method for structures damaged by salt damage, neutralization, and chemical corrosion of existing reinforced concrete structures.After chipping the general deteriorated part on the surface dropout and peeling part, apply old and new adhesives, apply a polymer mortar to repair the section, and then apply the steel plate. , Carbon fiber and carbon fiber panels are attached to increase concrete load-bearing capacity.

그러나 현재 콘크리트 건축물의 균열 보수에 사용되는 보수재는 대부분 합성 화합물을 인위적으로 제조하여 사용하고 있다. 이러한 합성 화합물은 휘발성 유기 화합물을 배출하여 새집 증후군의 주요원인이 되며, 알레르기, 호흡기 질환, 피부병을 유발하는 등 인간에게 유해한 영향을 미치고 있다. 또한, 그 효과가 지속 가능하지 않으며 많은 비용이 소모되는 단점이 있다.However, most of the repair materials used to repair cracks in concrete buildings are artificially manufactured and used in synthetic compounds. These synthetic compounds release volatile organic compounds and become a major cause of sick house syndrome, and have harmful effects on humans, such as causing allergies, respiratory diseases, and skin diseases. In addition, there is a disadvantage that the effect is not sustainable and a lot of cost is consumed.

또한 한국공개특허 제2012-0008146호, 한국등록특허 제1859211호 및 한국공개특허 제2019-0121683호 콘크리트 강도 증진에 미생물을 이용하는 방법이 기재되어 있으나, 이들 모두 미생물의 탄산칼슘 형성능, 내알카리성, 내열성 및 포자형성능 등의 미생물이 보유하고 있는 특성만을 검토하고 있을 뿐 실제 산업현장에 적용될 수 있는 콘크리트 강도 및 응결시간과 관련된 결과를 제시하고 있지 못하고, 일부 제시된 실험결과들도 미생물 투입량이 너무 과다하다는 문제가 있었고, 산업현장에서 요구되고 있는 압축강도가 40 MPa 이상인 콘크리트를 제조하는 데에 기술적 한계가 있었다. In addition, Korean Patent Publication No. 2012-0008146, Korean Patent Registration No. 1859211, and Korean Patent Publication No. 2019-0121683 describe a method of using microorganisms to increase the strength of concrete, but all of them have the ability of microorganisms to form calcium carbonate, alkali resistance, and heat resistance. It is only reviewing the characteristics of microorganisms such as spore-forming ability, but not presenting results related to concrete strength and setting time that can be applied to actual industrial sites, and some of the suggested experimental results also indicate that the amount of microbial input is excessive. There were technical limitations in manufacturing concrete with a compressive strength of 40 MPa or more, which is required in industrial sites.

한국공개특허 제2012-0008146호Korean Patent Publication No. 2012-0008146 한국등록특허 제1859211호Korean Registered Patent No.1859211 한국공개특허 제2019-0121683호Korean Patent Publication No. 2019-0121683

본 발명이 해결하고자 하는 과제는 콘크리트의 압축강도를 증진시키는 동시에 휘발성 유기 화합물을 저감시킬 수 있는 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P] 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P]의 균주 혼합물 또는 그 배양액을 유효성분으로 포함하는 콘크리트 강도 증진용 또는 균열 보수용 조성물을 제공하는 것이다.The problem to be solved by the present invention is Bacillus megaterium HH1 [Accession No. KCCM12617P] and Bacillus thuringiensisis HH2 [Deposit No. KCCM12618P] to provide a composition for improving the strength of concrete or for repairing cracks comprising the strain mixture or the culture solution thereof as an active ingredient.

본 발명이 해결하고자 하는 다른 과제는 콘크리트의 압축강도를 증진시키는 동시에 휘발성 유기 화합물을 저감시킬 수 있는 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P] 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P]의 균주 혼합물 또는 그 배양액을 콘크리트 모르타르에 투입하는 단계를 포함하는 강도가 증진되고 휘발성 유기 화합물 농도가 저감된 콘크리트의 제조방법을 제공하는 것이다.Another problem to be solved by the present invention is Bacillus megaterium (Bacillus megaterium) HH1 [Accession No. KCCM12617P] and Bacillus thuringiensisis ( Bacillus thuringiensisis ) HH2 [ It is to provide a method for producing concrete with increased strength and reduced concentration of volatile organic compounds, including the step of injecting a strain mixture of accession number KCCM12618P] or a culture solution thereof into a concrete mortar.

본 발명이 해결하고자 하는 다른 과제는 콘크리트의 압축강도를 증진시키는 동시에 휘발성 유기 화합물을 저감시킬 수 있는 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P] 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P]의 균주 혼합물 또는 그 배양액을 시멘트 페이스트 또는 콘크리트 구조물의 균열 부위에 처리하는 것을 특징으로 하는 시멘트 페이스트 또는 콘크리트 구조물의 균열 보수 방법을 제공하는 것이다.Another problem to be solved by the present invention is Bacillus megaterium (Bacillus megaterium) HH1 [Accession No. KCCM12617P] and Bacillus thuringiensisis ( Bacillus thuringiensisis ) HH2 [ To provide a method for repairing a crack of a cement paste or concrete structure, characterized in that the strain mixture or its culture solution of the deposit number KCCM12618P] is treated on the crack of the cement paste or concrete structure.

본 발명이 해결하고자 하는 다른 과제는 콘크리트의 압축강도를 증진시키는 동시에 휘발성 유기 화합물을 저감시킬 수 있는 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P]을 제공하는 것이다. Another problem to be solved by the present invention is to provide Bacillus megaterium HH1 [Accession No. KCCM12617P] capable of reducing volatile organic compounds while improving the compressive strength of concrete.

본 발명이 해결하고자 하는 다른 과제는 콘크리트의 압축강도를 증진시키는 동시에 휘발성 유기 화합물을 저감시킬 수 있는 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P]하는 것이다.Another problem to be solved by the present invention is to improve the compressive strength of concrete and at the same time reduce volatile organic compounds Bacillus thuringiensisis HH2 [Accession No. KCCM12618P].

본 발명은 상기 과제를 달성하기 위하여, 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P] 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P]의 균주 혼합물 또는 그 배양액을 유효성분으로 포함하는 콘크리트 강도 증진용 또는 균열 보수용 조성물을 제공한다. The present invention includes a strain mixture of Bacillus megaterium HH1 [Accession No. KCCM12617P] and Bacillus thuringiensisis HH2 [Accession No. KCCM12618P] as an active ingredient in order to achieve the above object. It provides a composition for improving the strength of concrete or repairing cracks.

본 발명의 일 실험예에 의하면, 상기 조성물은 응결된 콘크리트의 휘발성 유기 화합물 농도를 저감시키는 것을 특징으로 한다.According to an experimental example of the present invention, the composition is characterized in that it reduces the concentration of volatile organic compounds in the condensed concrete.

또한 본 발명은 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P] 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P]의 균주 혼합물 또는 그 배양액을 콘크리트 모르타르에 투입하는 단계를 포함하는 강도가 증진되고 휘발성 유기 화합물 농도가 저감된 콘크리트의 제조방법을 제공한다.In addition, the present invention Bacillus megaterium (Bacillus megaterium) HH1 [Accession No. KCCM12617P] and Bacillus thuringiensisis ( Bacillus thuringiensisis ) HH2 [Accession No. It provides a method for producing concrete with increased concentration of volatile organic compounds and reduced concentration of volatile organic compounds.

또한 본 발명은 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P] 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P]의 균주 혼합물 또는 그 배양액을 시멘트 페이스트 또는 콘크리트 구조물의 균열 부위에 처리하는 것을 특징으로 하는 시멘트 페이스트 또는 콘크리트 구조물의 균열 보수 방법을 제공한다.In addition, the present invention is Bacillus megaterium (Bacillus megaterium) HH1 [accession number KCCM12617P] and Bacillus thuringiensisis ( Bacillus thuringiensisis ) HH2 [Accession No. It provides a method for repairing a crack of a cement paste or concrete structure, characterized in that.

본 발명의 일 실험예에 의하면, 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P] 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P]의 균주 혼합물 또는 그 배양액을 시멘트 모르타르에 투입한 후, 상기 시멘트 모르타르를 시멘트 페이스트 또는 콘크리트 구조물의 균열 부위에 처리하는 것을 특징으로 한다.According to an experimental example of the present invention, a strain mixture of Bacillus megaterium HH1 [Accession No. KCCM12617P] and Bacillus thuringiensisis HH2 [Accession No. KCCM12618P] was added to a cement mortar. After that, the cement mortar is characterized in that the cement paste or the cracked portion of the concrete structure is treated.

또한 본 발명은 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P]을 제공한다.In addition, the present invention provides Bacillus megaterium (Bacillus megaterium) HH1 [Accession No. KCCM12617P].

또한 본 발명은 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P]을 제공한다.In addition, the present invention provides Bacillus thuringiensisis HH2 [accession number KCCM12618P].

본 발명의 바실러스 메가테리움(Bacillus megaterium) HH1 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2의 균주 혼합물 또는 그 배양액은 콘크리트의 양생 후 압축강도가 40 MPa에 도달하는 시간을 단축시키고, 동일 양생기간 동안의 콘크리트 압축강도를 증진시키며, 콘크리트 응결 시간을 단축시켜 작업성을 높이고, 양생 후 휘발성 유기 화합물 방출을 저감시키므로, 콘크리트 강도 증진용 또는 균열 보수용 조성물을 제조에 활용될 수 있고, 강도가 증진된 콘크리트의 제조방법에 활용될 수 있으며, 또한 시멘트 페이스트 또는 콘크리트 구조물의 균열 보수 방법에 활용될 수 있다. The strain mixture of Bacillus megaterium HH1 and Bacillus thuringiensisis HH2 of the present invention or its culture solution shortens the time for the compressive strength to reach 40 MPa after curing of concrete, and during the same curing period. It improves the compressive strength of concrete, shortens the setting time of concrete, improves workability, and reduces the release of volatile organic compounds after curing, so it can be used in the manufacture of a composition for improving concrete strength or repairing cracks. It can be used in a method of manufacturing concrete, and it can also be used in a method of repairing cracks in cement paste or concrete structures.

본 발명의 발명자는 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P] 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P]의 균주 혼합물 또는 그 배양액이 콘크리트의 양생 후 압축강도가 40 MPa에 도달하는 시간을 단축시키고, 동일 양생기간 동안의 콘크리트 압축강도를 증진시키며, 콘크리트 응결 시간을 단축시켜 작업성을 높이고, 양생 후 휘발성 유기 화합물 방출을 저감시킨다는 것을 확인하였다.The inventors of the present invention believe that the strain mixture of Bacillus megaterium HH1 [Accession No. KCCM12617P] and Bacillus thuringiensisis HH2 [Accession No. KCCM12618P] after curing concrete has a compressive strength of 40 MPa It was confirmed that the time to reach the temperature was shortened, the compressive strength of concrete during the same curing period was improved, the concrete setting time was shortened to increase workability, and to reduce the emission of volatile organic compounds after curing.

본 발명은 콘크리트의 압축강도를 증진시키는 동시에 휘발성 유기 화합물을 저감시킬 수 있는 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P] 균주, 그리고 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P] 균주에 관한 것이다.The present invention improves the compressive strength of concrete and at the same time reduces volatile organic compounds Bacillus megaterium HH1 [Accession No. KCCM12617P] strain, and Bacillus thuringiensisis HH2 [Accession No. KCCM12618P] It relates to strains.

상기 균주들로부터 각각 DNA를 분리하고 16s rDNA 서열을 증폭하여 NCBI public domain site를 이용하여 분자 동정을 수행하였다. 동정 결과 각각 바실러스 메가테리움(Bacillus megaterium) 종, 그리고 바실러스 투린지엔시스(Bacillus thuringiensisis) 종으로 동정되었다. 상기 2 종의 균주를 바실러스 메가테리움(Bacillus megaterium) HH1 균주, 그리고 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 균주로 명명하고, 한국미생물보존센터(KCCM)에 2019년 12월 24일자로 기탁하여 각각 기탁번호 KCCM12617P 및 KCCM12618P를 부여받았다.DNA was isolated from the above strains, and the 16s rDNA sequence was amplified, and molecular identification was performed using the NCBI public domain site. As a result of the identification, Bacillus megaterium species and Bacillus thuringiensisis species were identified, respectively. The two strains were named Bacillus megaterium HH1 strain, and Bacillus thuringiensisis HH2 strain, and were deposited with the Korea Microbiological Conservation Center (KCCM) on December 24, 2019, respectively. It has been given accession numbers KCCM12617P and KCCM12618P.

상기 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P] 균주는 서열번호 1의 염기서열을 갖는 16S rDNA 유전자를 포함하고, 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P] 균주는 서열번호 2의 염기서열을 갖는 16S rDNA 유전자를 포함한다.The Bacillus megaterium HH1 [accession number KCCM12617P] strain contains a 16S rDNA gene having a nucleotide sequence of SEQ ID NO: 1, and Bacillus thuringiensisis HH2 [accession number KCCM12618P] strain is SEQ ID NO: It includes a 16S rDNA gene having a base sequence of 2.

상기 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P] 균주는 탄산칼슘 형성 활성을 나타내고 콘크리트의 압축 강도를 증진시키며 휘발성 유기 화합물을 저감시키고, 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P] 균주는 단독으로는 콘크리트의 압축 강도를 증진시키는 효과 및 휘발성 유기 화합물을 저감시키는 효과가 현저하지 않지만 바실러스 메가테리움(Bacillus megaterium) HH1와 혼합하여 투입되었을 때 콘크리트의 압축 강도 및 휘발성 유기 화합물 저감 효과를 현저히 증진시킨다.The Bacillus megaterium HH1 [Accession No. KCCM12617P] strain exhibits calcium carbonate formation activity, improves the compressive strength of concrete, reduces volatile organic compounds, and reduces volatile organic compounds, Bacillus thuringiensisis HH2 [Accession No. KCCM12618P] ] The strain alone has no significant effect of enhancing the compressive strength of concrete and reducing volatile organic compounds, but when mixed with Bacillus megaterium HH1, the compressive strength and volatile organic compounds of concrete are reduced. Significantly enhances the effect.

또한 본 발명은 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P] 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P]의 균주 혼합물 또는 그 배양액을 유효성분으로 포함하는 콘크리트 강도 증진용 또는 균열 보수용 조성물에 관한 것이다.In addition, the present invention Bacillus megaterium (Bacillus megaterium) HH1 [Accession No. KCCM12617P] and Bacillus thuringiensisis ( Bacillus thuringiensisis ) HH2 [Accession No. It relates to a composition for repairing cracks.

또한 본 발명은 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P] 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P]의 균주 혼합물 또는 그 배양액을 시멘트 모르타르에 투입하는 단계를 포함하는 강도가 증진되고 휘발성 유기 화합물 농도가 저감된 콘크리트의 제조방법을 제공한다.In addition, the present invention Bacillus megaterium (Bacillus megaterium) HH1 [Accession No. KCCM12617P] and Bacillus thuringiensisis ( Bacillus thuringiensisis ) HH2 [Accession No. It provides a method for producing concrete with increased concentration of volatile organic compounds and reduced concentration of volatile organic compounds.

또한 본 발명은 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P] 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P]의 균주 혼합물 또는 그 배양액을 시멘트 페이스트 또는 콘크리트 구조물의 균열 부위에 처리하는 것을 특징으로 하는 시멘트 페이스트 또는 콘크리트 구조물의 균열 보수 방법을 제공한다.In addition, the present invention is Bacillus megaterium (Bacillus megaterium) HH1 [accession number KCCM12617P] and Bacillus thuringiensisis ( Bacillus thuringiensisis ) HH2 [Accession No. It provides a method for repairing a crack of a cement paste or concrete structure, characterized in that.

상기 조성물, 제조방법 및 보수 방법에서 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P] 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P]의 균주 혼합물 또는 그 배양액은 시멘트 모르타르 제조에 사용되는 배합수를 기준으로 1 × 106 내지 1 × 108 CFU/mL, 바람직하게는 5 × 106 내지 5 × 107 CFU/mL로 혼합한다. 또는 상기 균주 혼합물은 시멘트 모르타르를 기준으로 1 × 105 내지 1 × 107 CFU/g, 바람직하게는 5 × 105 내지 5 × 106 CFU/g 혼합한다.In the above composition, production method and repair method Bacillus megaterium (Bacillus megaterium) HH1 [Accession No. KCCM12617P] and Bacillus thuringiensisis ( Bacillus thuringiensisis ) HH2 [Accession No. KCCM12618P] strain mixture or its culture solution is used for the production of cement mortar Based on the number of mixtures to be mixed , 1 × 10 6 to 1 × 10 8 CFU/mL, preferably 5 × 10 6 to 5 × 10 7 CFU/mL. Alternatively, the strain mixture is mixed with 1 × 10 5 to 1 × 10 7 CFU/g, preferably 5 × 10 5 to 5 × 10 6 CFU/g based on the cement mortar.

또한 상기 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P] 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P]의 혼합비율은 1:2 내지 10:1 중량비, 바람직하게는 1:1 내지 5:1 중량비이다.In addition, the mixing ratio of the Bacillus megaterium HH1 [Accession No. KCCM12617P] and Bacillus thuringiensisis HH2 [Accession No. KCCM12618P] is 1:2 to 10:1 weight ratio, preferably 1:1 To 5:1 weight ratio.

상기 콘크리트의 강도 증진용 또는 균열 보수용 조성물 또는 시멘트 페이스트는 시멘트 건축물(콘크리트)의 강도 증진에 사용되는 첨가제, 또는 시멘트 건축물(콘크리트)의 균열 보수에 사용되는 보수재 또는 충진재를 의미하는 것으로, 상기 균주 혼합물 또는 그 배양액에 의해 콘크리트 강도 증진 또는 균열 보수 효과가 향상될 수 있다.The composition or cement paste for enhancing the strength of concrete or for repairing cracks refers to an additive used for enhancing the strength of cement buildings (concrete), or a repair material or filler used for repairing cracks in cement buildings (concrete), and the strain The concrete strength improvement or crack repair effect may be improved by the mixture or its culture solution.

상기 콘크리트는 시멘트, 물, 골재를 배합하여 제조된 시멘트 혼합물로서 시멘트 모르타르, 양생 전 레미콘(ready-mixed concrete), 및 양생 후 콘크리트 구조물을 포함한다.The concrete is a cement mixture prepared by mixing cement, water, and aggregate, and includes a cement mortar, ready-mixed concrete, and a concrete structure after curing.

상기 시멘트 페이스트는 시멘트와 물을 배합하여 제조된 시멘트 혼합물로서 그 자체로 구조물을 형성하거나 시멘트 구조물(예컨대, 콘크리트 제품)의 접착제, 충진재 등으로 사용될 수 있다. The cement paste is a cement mixture prepared by mixing cement and water, and may form a structure by itself, or may be used as an adhesive or filler for a cement structure (eg, a concrete product).

상기 콘크리트의 강도 증진용 또는 균열 보수용 조성물은 시멘트 혼합물의 제조 시 특정 기능을 향상시키기 위해 첨가되는 조성물을 의미하는 것으로, 상기 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P] 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P]의 균주 혼합물 또는 그 배양액 외에 다른 성분이 더 포함될 수 있다.The composition for enhancing the strength of concrete or for repairing cracks refers to a composition added to improve a specific function when preparing a cement mixture, and the Bacillus megaterium HH1 [Accession No. KCCM12617P] and Bacillus Turinji In addition to the strain mixture of Bacillus thuringiensisis (Bacillus thuringiensisis) HH2 [Accession No. KCCM12618P] or a culture solution thereof, other components may be further included.

본 발명의 일 실험예에 의하면, 상기 시멘트 모르타르를 시멘트 페이스트 또는 콘크리트 구조물의 균열 부위에 처리하는 경우, 균열 부위가 미세할 경우 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P] 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P]의 균주 혼합물 또는 그 배양액을 바로 처리하고, 균열 부위가 일정 크기 이상일 경우 상기 균주 혼합물 또는 그 배양액을 시멘트 모르타르에 투입한 후, 그 시멘트 모르타르를 시멘트 페이스트 또는 콘크리트 구조물의 균열 부위에 처리한다.According to an experimental example of the present invention, when the cement mortar is treated on a crack portion of a cement paste or a concrete structure, when the crack portion is fine, Bacillus megaterium HH1 [Accession No. KCCM12617P] and Bacillus Turinji The strain mixture of Bacillus thuringiensisis HH2 [Accession No. KCCM12618P] or its culture solution is immediately treated, and if the crack area is larger than a certain size, the strain mixture or its culture solution is added to a cement mortar, and the cement mortar is added to a cement paste or Treated on cracks in concrete structures.

이하, 실험예를 들어 본 발명을 더욱 상세하게 설명한다. 그러나 이들 실험예들은 본 발명을 보다 구체적으로 설명하기 위한 것으로, 본 발명의 범위가 이에 의하여 제한되지 않는다는 것은 당업계의 통상의 지식을 가진 자에게 자명할 것이다.Hereinafter, the present invention will be described in more detail with reference to an experimental example. However, these experimental examples are intended to describe the present invention in more detail, and it will be apparent to those of ordinary skill in the art that the scope of the present invention is not limited thereto.

실험예 1: 균주 동정Experimental Example 1: strain identification

본 발명자들은 콘크리트의 양생 후 압축강도가 40 MPa에 도달하는 시간을 단축시키고, 동일 양생기간 동안의 콘크리트 압축강도를 증진시키며, 콘크리트 응결 시간을 단축시켜 작업성을 높이고, 양생 후 휘발성 유기 화합물 방출을 저감시키는 균주를 탐색하던 중 2 종의 균주를 순수 분리하였다.The present inventors shorten the time for the compressive strength of concrete to reach 40 MPa after curing, improve the compressive strength of concrete during the same curing period, shorten the setting time of concrete to increase workability, and reduce the release of volatile organic compounds after curing. While searching for a strain to reduce, two strains were purely isolated.

상기 순수 분리된 균주의 분자 동정을 위하여, 배양된 균체에서 DNA를 분리하여 16s rDNA 서열을 증폭하였다. 얻어진 서열은 NCBI public domain site를 이용하여 기준균주(type strain)와 가장 상동성이 높은 것과 비교하여 판별하였다.For molecular identification of the pure isolated strain, DNA was isolated from the cultured cells to amplify the 16s rDNA sequence. The obtained sequence was determined by comparing the one with the highest homology to the type strain using the NCBI public domain site.

2종의 균주 모두 high G+C group, 그람 양성의 바실러스 속으로 동정되었으며, 각각 바실러스 메가테리움(Bacillus megaterium) 종, 그리고 바실러스 투린지엔시스(Bacillus thuringiensisis) 종으로 동정되었다. Both strains were identified as high G+C group, Gram-positive Bacillus genus, respectively, Bacillus megaterium species, and Bacillus thuringiensisis species.

상기 2 종의 균주를 바실러스 메가테리움(Bacillus megaterium) HH1 균주, 그리고 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 균주로 명명하고, 한국미생물보존센터(KCCM)에 2019년 12월 24일자로 기탁하여 각각 기탁번호 KCCM12617P 및 KCCM12618P를 부여받았다.The two strains were named Bacillus megaterium HH1 strain, and Bacillus thuringiensisis HH2 strain, and were deposited with the Korea Microbiological Conservation Center (KCCM) on December 24, 2019, respectively. It has been given accession numbers KCCM12617P and KCCM12618P.

실험예 2: 균주 혼합 비율 및 농도에 따른 콘크리트 강도 시험Experimental Example 2: Concrete strength test according to strain mixing ratio and concentration

바실러스 메가테리움 HH1 균주 및 바실러스 투린지엔시스 HH2 균주는 각각 5.1 × 107 CFU/mL가 되도록 제조한 배양액을 필요에 따라 희석하여 사용하였다. 상기 배양액의 600 nm에서 흡광도는 각각 0.5 및 0.6 이었다.Bacillus megaterium HH1 strain and Bacillus thuringiensis HH2 strain were each diluted to 5.1 × 10 7 CFU / mL, as necessary, was used. The absorbance at 600 nm of the culture solution was 0.5 and 0.6, respectively.

상기 배양액을 표 1의 중량비로 혼합한 후, 15.1 ℃의 수돗물로 희석하여 배합수를 제조하고, 시험실의 온도는 20.5 ℃, 습도 80%를 유지하였고, 사용하는 골재는 잔 골재로 강 모래를, 굵은 골재로 부순 굵은 골재로서 최대 치수 25 mm인 것을 사용하였다. After mixing the culture solution in the weight ratio shown in Table 1, the mixture was diluted with tap water at 15.1 °C to prepare a water mixture, and the temperature of the test room was maintained at 20.5 °C and humidity of 80%, and the aggregate used was river sand as fine aggregate, A coarse aggregate crushed with a coarse aggregate and having a maximum dimension of 25 mm was used.

상기 배합수는 바실러스 메가테리움(Bacillus megaterium) HH1 균주, 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 균주의 혼합 비율 및 배합수 내의 균체 농도를 달리하여 다양하게 제조하였다.The compounding water was prepared in various ways by varying the mixing ratio of the Bacillus megaterium HH1 strain, and the Bacillus thuringiensisis HH2 strain and the concentration of cells in the compounding water.

배합수 168 g, 포틀랜드 시멘트 320 g, 잔 골재 834.2 g 및 굵은 골재 902.8 g, 총 2225 g의 시멘트 모르타르를 이용하여 165 mm × 165 mm × 20 mm 시편을 제조하고, 100 mm × 200 mm 길모어 침을 이용하여 양생 7일 및 14일째 압축 강도를 측정하여 표 1 및 표 2에 나타내었다.A 165 mm × 165 mm × 20 mm specimen was prepared using 168 g of mixing water, 320 g of Portland cement, 834.2 g of fine aggregate and 902.8 g of coarse aggregate, and a total of 2225 g of cement mortar. By measuring the compressive strength on the 7th and 14th days of curing, it is shown in Tables 1 and 2.

구분division HH1:HH2
(중량비)
HH1:HH2
(Weight ratio)
배합수 균체 농도
(CFU/mL)
Mixing water cell concentration
(CFU/mL)
7일째 압축강도
(MPa)
Compressive strength on the 7th day
(MPa)
14일째 압축강도
(MPa)
Compressive strength on day 14
(MPa)
1-11-1 0:00:0 00 33.333.3 37.937.9 1-21-2 100:0100:0 1 × 107 1 × 10 7 34.134.1 38.438.4 1-31-3 75:2575:25 1 × 107 1 × 10 7 38.3* 38.3 * 41.2* 41.2 * 1-41-4 50:5050:50 1 × 107 1 × 10 7 38.1* 38.1 * 40.4* 40.4 * 1-51-5 25:7525:75 1 × 107 1 × 10 7 37.5* 37.5 * 38.738.7 1-61-6 0:1000:100 1 × 107 1 × 10 7 33.533.5 38.038.0

바실러스 메가테리움 HH1 균주 또는 바실러스 투린지엔시스 HH2 균주를 단독으로 첨가한 제조예 1-2 및 제조예 1-3은 균주를 전혀 첨가하지 않은 제조예 1-1의 대조군과 7일째 및 14일째 압축 강도에서 차이가 미미했고, 바실러스 메가테리움 HH1 및 바실러스 투린지엔시스 HH2의 혼합 균주의 배양액을 첨가한 제조예 1-3 내지 제조예 1-5에서는 7일째 압축 강도가 제조예 1-1의 대조군에 비해 유의적으로 증가하였고(p<0.05), 제조예 1-3 및 제조예 1-4에서는 14일째 압축 강도가 제조예 1-1의 대조군에 비해 유의적으로 증가하였다(p<0.05).Preparation Example 1-2 and Preparation 1-3 in which Bacillus megaterium HH1 strain or Bacillus thuringiensis HH2 strain was added alone were compressed on the 7th and 14th days with the control group of Preparation Example 1-1 in which no strain was added. The difference in strength was insignificant, and in Preparation Examples 1-3 to 1-5 in which the culture solution of the mixed strain of Bacillus megaterium HH1 and Bacillus thuringiensis HH2 was added, the compressive strength on the 7th day was the control of Preparation Example 1-1. Compared to the control group of Preparation Example 1-1, the compressive strength increased significantly (p<0.05) on Day 14 in Preparation Examples 1-3 and 1-4 compared to the control group of Preparation Example 1-1 (p<0.05).

구분division HH1:HH2
(중량비)
HH1:HH2
(Weight ratio)
배합수 균체 농도
(CFU/mL)
Mixing water cell concentration
(CFU/mL)
7일째 압축강도
(MPa)
Compressive strength on the 7th day
(MPa)
14일째 압축강도
(MPa)
Compressive strength on day 14
(MPa)
2-12-1 0:00:0 00 33.333.3 37.937.9 2-22-2 50:5050:50 1 × 105 1 × 10 5 34.834.8 38.138.1 2-32-3 50:5050:50 5 × 105 5 × 10 5 35.235.2 38.038.0 2-42-4 50:5050:50 1 × 106 1 × 10 6 37.4* 37.4 * 39.139.1 2-52-5 50:5050:50 5 × 106 5 × 10 6 38.2* 38.2 * 40.6* 40.6 * 2-62-6 50:5050:50 5 × 107 5 × 10 7 38.5* 38.5 * 40.9* 40.9 *

바실러스 메가테리움 HH1 및 바실러스 투린지엔시스 HH2를 50:50 중량비로 혼합한 배양액을 첨가하여 제조한 제조예들 중에서 배합수의 균체 농도가 1 × 106 CFU/mL 이상인 제조예 2-4 내지 2-6에서 균주를 전혀 첨가하지 않은 제조예 1-1의 대조군과 7일째 압축 강도에서 유의적인 차이가 발생하였고(p<0.05), 제조예 2-5 및 제조예 2-6에서는 14일째 압축 강도가 제조예 2-1의 대조군에 비해 유의적으로 증가하였다(p<0.05).Among Preparation Examples prepared by adding a culture solution of Bacillus megaterium HH1 and Bacillus thuringiensis HH2 at a weight ratio of 50:50, the cell concentration of the compounded water was 1×10 6 CFU/mL or more, Preparation Examples 2-4 to 2 In -6, there was a significant difference in compressive strength on day 7 from the control group of Preparation Example 1-1 in which no strain was added (p<0.05), and in Preparation Example 2-5 and Preparation Example 2-6, compressive strength on day 14 Was significantly increased compared to the control group of Preparation Example 2-1 (p<0.05).

실험예 3: 양생일수에 따른 콘크리트 강도 시험Experimental Example 3: Concrete strength test according to the number of curing days

바실러스 메가테리움 HH1 균주 및 바실러스 투린지엔시스 HH2 균주를 50:50 중량비로 혼합하고, 배합수의 균체 농도는 1 × 107 CFU/mL가 되도록 제조한 배합수를 사용하여 제조한 시멘트 모르타르(제조예 3-2), 균주를 혼합하지 않고 수돗물만을 배합수로 사용하여 제조한 시멘트 모르타르(제조예 3-1)를 실험예 2에 기재된 내용으로 시편을 제조하여 실험예 2의 압축 강도 시험 방법을 이용하여 양생 후 28일째까지 양생일수에 따른 압축 강도를 측정하여 표 3에 나타내었다.Cement mortar prepared by mixing Bacillus megaterium HH1 strain and Bacillus thuringiensis HH2 strain at a weight ratio of 50:50, and using the blended water prepared so that the cell concentration of the blended water is 1 × 10 7 CFU/mL. Example 3-2), a cement mortar (Production Example 3-1) prepared by using only tap water as the mixing water without mixing strains was prepared as described in Experimental Example 2, and the compressive strength test method of Experimental Example 2 was performed. The compressive strength according to the number of curing days was measured until the 28th day after curing using, and is shown in Table 3.

양생일수Number of curing days 3일째Day 3 5일째Day 5 7일째Day 7 9일째Day 9 14일째Day 14 28일째Day 28 압축강도Compressive strength 3-13-1 26.426.4 32.032.0 33.333.3 36.136.1 37.937.9 40.640.6 (MPa)(MPa) 3-23-2 30.4* 30.4 * 36.6* 36.6 * 38.1* 38.1 * 38.5* 38.5 * 40.4* 40.4 * 43.3* 43.3 *

바실러스 메가테리움 HH1 및 바실러스 투린지엔시스 HH2를 50:50 중량비로 혼합한 배양액을 첨가하여 제조한 제조예 3-2는 균주를 전혀 첨가하지 않은 제조예 3-1에 비해 양생 후 3일째부터 유의적으로 압축 강도가 증가하였고(p<0.05), 특히 산업적으로 요구되는 40 MPa 이상의 압축 강도에 도달하는 시간은 제조예 3-2는 14일이고, 제조예 3-1은 28일로서 그 기간이 1/2로 현저히 단축되었음을 확인하였다.Preparation Example 3-2 prepared by adding a culture solution of Bacillus megaterium HH1 and Bacillus thuringiensis HH2 at a weight ratio of 50:50 was significant from the third day after curing compared to Preparation Example 3-1 in which no strain was added. In general, the compressive strength increased (p<0.05), and the time to reach the compressive strength of 40 MPa or more, which is particularly industrially required, was 14 days in Preparation Example 3-2, and 28 days in Preparation Example 3-1. It was confirmed that it was significantly shortened to 1/2.

실험예 4: 콘크리트 응결시간 시험Experimental Example 4: Concrete setting time test

바실러스 메가테리움 HH1 균주 및 바실러스 투린지엔시스 HH2 균주를 50:50 중량비로 혼합하고, 배합수의 균체 농도를 1 × 107 CFU/mL 및 5 × 106 CFU/mL로 각각 달리하여 제조한 배합수를 사용하여 제조한 시멘트 모르타르(제조예 4-2 및 4-3), 균주를 혼합하지 않고 수돗물만을 배합수로 사용하여 제조한 시멘트 모르타르(제조예4-1)을 실험예 2에 기재된 시멘트 모르타르 조성비를 이용하여 온도 20 ㅁ 3 ℃, 습도 80% 이상으로 유지된 시험실 내에서 콘크리트 응결시간을 확인하였다.Mixture prepared by mixing Bacillus megaterium HH1 strain and Bacillus thuringiensis HH2 strain at a weight ratio of 50:50, and varying the cell concentration of the blended water to 1 × 10 7 CFU/mL and 5 × 10 6 CFU/mL, respectively. Cement mortar prepared using water (Preparation Examples 4-2 and 4-3), cement mortar prepared using only tap water as the mixing water without mixing strains (Preparation Example 4-1) was used as the cement described in Experimental Example 2. Using the mortar composition ratio, the concrete setting time was checked in a test room maintained at a temperature of 20 ㅁ 3 ℃ and a humidity of 80% or more.

시멘트가 물과 최초로 접촉한 시각을 기록하며, 시료를 용기(안 지름 또는 짧은 변 150㎜이상, 안쪽높이 150㎜이상의 금속제의 원통)의 축에 대칭이 되도록 넣고, 시료의 상면을 약 6 ㎠에 대하여 1회의 비율로 다지고 다짐구멍을 없앴다. 시료 상면을 용기의 상단에서 약 1 ㎝ 낮도록 하며 시료의 표면은 최소의 작업으로 평탄한 면이 되도록 흙손으로 다지고, 시험을 하기 전에 시료표면의 물을 빨아내었다. 관입침을 시료 중에 주의 깊게 연직하방으로 25 ㎜, 약 10초 동안 관입시켰다. 관입에 필요한 힘(㎏f)을 기록하고, 관입침의 침적의 순 간격은 사용하는 관입침의 지름의 2배 이상이며 15 ㎜이상으로 하며, 용기의 측면과 침적과의 순 간격은 20 ㎜이상으로 하였다. 관입저항이 280 ㎏/㎠롤 초과할 때까지 관입시험을 계속하며 최소 6회 시행하고, 2 배치에 대하여 구한 관입저항이 35 ㎏f/㎠로 될 때까지의 경과시간은, 평균치에서 30분이내, 관입저항이 280 ㎏f/㎠로 될 때까지의 경과시간은, 평균치에서 20분이내로 하였다.Record the time when the cement first contacted water, put the sample symmetrically on the axis of the container (inner diameter or shorter side 150 mm or more, inner height 150 mm or more), and place the upper surface of the sample in about 6 cm2. It was compacted at a rate of once and the compaction hole was eliminated. The upper surface of the sample was made to be about 1 cm lower from the top of the container, and the surface of the sample was minced with a trowel to become a flat surface with minimal work, and water from the sample surface was sucked out before the test. The intrusion needle was carefully intruded vertically downward into the sample for 25 mm, about 10 seconds. Record the force required for penetration (kgf), and the net spacing of the intrusion needle should be at least twice the diameter of the intrusion needle used and be 15 ㎜ or more, and the net gap between the side of the container and the immersion should be 20 ㎜ or more. I did it. Penetration test is continued until the penetration resistance exceeds 280 ㎏/㎠ roll, and it is carried out at least 6 times. The elapsed time until the penetration resistance obtained for 2 batches becomes 35 ㎏f/㎠ is within 30 minutes from the average value. The elapsed time until the penetration resistance became 280 kgf/cm 2 was within 20 minutes from the average value.

초결시간은 시멘트 모르타르 배합 후 유동성이 떨어지며 응결이 시작되는 시간이고, 종결시간은 응고를 계속하여 내부까지 고체상태가 될 때까지의 시간이며, 응결시간은 종결시간에서 초결시간을 뺀 시간으로 계산하였다.The initial setting time is the time from which the fluidity is lowered after the cement mortar is blended and the setting starts, the termination time is the time until solidification continues to the inside and the setting time is calculated as the time minus the initial setting time from the termination time. .

구분division 제조예 4-1Manufacturing Example 4-1 제조예 4-2Manufacturing Example 4-2 제조예 4-3Manufacturing Example 4-3 초결시간 (분)Initiation time (minutes) 210210 170* 170 * 195195 종결시간 (분)Closing time (minutes) 390390 325* 325 * 360* 360 * 응결시간 (분)Setting time (minutes) 180180 155* 155 * 160* 160 *

포틀랜드 시멘트를 사용한 통상의 시멘트 모르타르의 경우 초결시간 60분 이상, 종결시간 600 분 이내의 조건을 충족해야 작업성에 문제가 없다고 판단하나, 보다 효율적인 작업을 위해서는 응결시간 단축이 필요하고 급결재를 사용하는 경우가 많다. In the case of a conventional cement mortar using Portland cement, it is judged that there is no problem in workability only when the conditions of the initial setting time are 60 minutes or more and the finishing time 600 minutes, but for more efficient work, the setting time needs to be shortened and quick setting materials are used. There are many cases.

바실러스 메가테리움 HH1 및 바실러스 투린지엔시스 HH2의 혼합 배양액을 첨가하여 제조한 제조예 4-2 및 4-3은 급결재를 사용하지 않은 상태에서 균주를 전혀 첨가하지 않은 제조예 4-1에 비해 종결시간 및 응결시간을 유의적으로 단축시켰고(p<0.05), 또한 제조예 4-2는 제조예 4-1에 비해 초결시간도 유의적으로 단축시켰다(p<0.05).Preparation Examples 4-2 and 4-3 prepared by adding a mixed culture solution of Bacillus megaterium HH1 and Bacillus thuringiensis HH2 were compared to Preparation Example 4-1 in which no strain was added at all without using a quick-setting material. Termination time and setting time were significantly shortened (p<0.05), and Preparation Example 4-2 significantly shortened the initial setting time compared to Preparation Example 4-1 (p<0.05).

실험예 5: 휘발성 유기 화합물 저감 효과 시험Experimental Example 5: Volatile Organic Compound Reduction Effect Test

바실러스 메가테리움 HH1 균주 및 바실러스 투린지엔시스 HH2 균주를 50:50 중량비로 혼합하고, 배합수의 균체 농도는 1 × 107 CFU/mL가 되도록 제조한 배합수를 사용하여 제조한 시멘트 모르타르(제조예 4-2), 균주를 혼합하지 않고 수돗물만을 배합수로 사용하여 제조한 시멘트 모르타르(제조예 4-1)를 실험예 2에 기재된 내용으로 시편을 제조하여 친환경시험법(KSI ISO 16000-9 방출시험 챔버법)으로 총 휘발성 유기 화합물, 포름알데히드 및 톨루엔 농도를 측정하였다.Cement mortar prepared by mixing Bacillus megaterium HH1 strain and Bacillus thuringiensis HH2 strain at a weight ratio of 50:50, and using the blended water prepared so that the cell concentration of the blended water is 1 × 10 7 CFU/mL. Example 4-2), an eco-friendly test method (KSI ISO 16000-9) by preparing a specimen according to the contents described in Experimental Example 2 using a cement mortar (Production Example 4-1) prepared using only tap water as the mixing water without mixing strains. Emission test chamber method) to measure total volatile organic compounds, formaldehyde and toluene concentrations.

상기 시편을 20 L 챔버에 투입하기 전, 챔버 내부 배경농도를 확인하고, 항온 조 내부에 챔버 연결 후 DNPH 카트리지와 흡착제 TENAX-TA 튜브를 연결하고 7일 후 활성 시료 채취, 열 탈착 및 MSD/FID를 이용한 가스 크로마토그래피에 의해 실내 및 챔버 공기 중의 총 휘발성 유기 화합물, 포름알데히드 및 톨루엔 농도를 측정하여 표 5에 나타내었다.Before inserting the specimen into the 20 L chamber, check the background concentration inside the chamber, connect the chamber to the inside of the thermostat, connect the DNPH cartridge and the TENAX-TA tube of the adsorbent, and collect active samples after 7 days, thermal desorption and MSD/FID The total volatile organic compounds, formaldehyde, and toluene concentrations in the room and chamber air were measured by gas chromatography using and are shown in Table 5.

구분division 제조예 5-1Manufacturing Example 5-1 제조예 5-2Manufacturing Example 5-2 총 휘발성유기화합물 (ppm)Total Volatile Organic Compounds (ppm) 0.0640.064 0.029* 0.029 * 포름알데히드 (ppm)Formaldehyde (ppm) 0.0030.003 0.001* 0.001 * 톨루엔 (ppm)Toluene (ppm) 불검출Not detected 불검출Not detected

바실러스 메가테리움 HH1 및 바실러스 투린지엔시스 HH2의 혼합 배양액을 첨가하여 제조한 제조예 5-2는 균주를 전혀 첨가하지 않은 제조예 5-1에 비해 총 휘발성 유기 화합물의 방출량이 55 % 현저히 저감되었고(p<0.05), 또한 포름알데히드 방출량 역시 66% 현저히 저감시켰다(p<0.05).Preparation Example 5-2 prepared by adding a mixed culture solution of Bacillus megaterium HH1 and Bacillus thuringiensis HH2 was significantly reduced by 55% compared to Preparation Example 5-1 in which no strain was added. (p<0.05), and the amount of formaldehyde emission was also significantly reduced by 66% (p<0.05).

<110> Asian Global Co.,Ltd <120> Composition for improvement of compressive strength of concreate comprising noble Bacillus strain mixture or culture thereof as an effective component <130> HPC9131 <150> KR 10-2019-0012020 <151> 2019-01-30 <160> 2 <170> KoPatentIn 3.0 <210> 1 <211> 1277 <212> DNA <213> Bacillus megaterium <400> 1 taacacgtgg gcaacctgcc tgtaagactg ggataacttc gggaaaccga agctaatacc 60 ggataggatc ttctccttca tgggagatga ttgaaagatg gtttcggcta tcacttacag 120 atgggcccgc ggtgcattag ctagttggtg aggtaacggc tcaccaaggc aacgatgcat 180 agccgacctg agagggtgat cggccacact gggactgaga cacggcccag actcctacgg 240 gaggcagcag tagggaatct tccgcaatgg acgaaagtct gacggagcaa cgccgcgtga 300 gtgatgaagg ctttcgggtc gtaaaactct gttgttaggg aagaacaagt acgagagtaa 360 ctgcttgtac cttgacggta cctaaccaga aagccacggc taactacgtg ccagcagccg 420 cggtaatacg taggtggcaa gcgttatccg gaattattgg gcgtaaagcg cgcgcaggcg 480 gtttcttaag tctgatgtga aagcccacgg ctcaaccgtg gagggtcatt ggaaactggg 540 gaacttgagt gcagaagaga aaagcggaat tccacgtgta gcggtgaaat gcgtagagat 600 gtggaggaac accagtggcg aaggcggctt tttggtctgt aactgacgct gaggcgcgaa 660 agcgtgggga gcaaacagga ttagataccc tggtagtcca cgccgtaaac gatgagtgct 720 aagtgttaga gggtttccgc cctttagtgc tgcagctaac gcattaagca ctccgcctgg 780 ggagtacggt cgcaagactg aaactcaaag gaattgacgg gggcccgcac aagcggtgga 840 gcatgtggtt taattcgaag caacgcgaag aaccttacca ggtcttgaca tcctctgaca 900 actctagaga tagagcgttc cccttcgggg gacagagtga caggtggtgc atggttgtcg 960 tcagctcgtg tcgtgagatg ttgggttaag tcccgcaacg agcgcaaccc ttgatcttag 1020 ttgccagcat ttagttgggc actctaaggt gactgccggt gacaaaccgg aggaaggtgg 1080 ggatgacgtc aaatcatcat gccccttatg acctgggcta cacacgtgct acaatggatg 1140 gtacaaaggg ctgcaagacc gcgaggtcaa gccaatccca taaaaccatt ctcagttcgg 1200 attgtaggct gcaactcgcc tacatgaagc tggaatcgct agtaatcgcg gatcagcatg 1260 ccgcggtgaa tacgttc 1277 <210> 2 <211> 1372 <212> DNA <213> Bacillus thuringiensis <400> 2 gagcttgctc ttatgaagtt agcggcggac gggtgagtaa cacgtgggta acctgcccat 60 aagactggga taactccggg aaaccggggc taataccgga taacattttg aaccgcatgg 120 ttcgaaattg aaaggcggct tcggctgtca cttatggatg gacccgcgtc gcattagcta 180 gttggtgagg taacggctca ccaaggcaac gatgcgtagc cgacctgaga gggtgatcgg 240 ccacactggg actgagacac ggcccagact cctacgggag gcagcagtag ggaatcttcc 300 gcaatggacg aaagtctgac ggagcaacgc cgcgtgagtg atgaaggctt tcgggtcgta 360 aaactctgtt gttagggaag aacaagtgct agttgaataa gctggcacct tgacggtacc 420 taaccagaaa gccacggcta actacgtgcc agcagccgcg gtaatacgta ggtggcaagc 480 gttatccgga attattgggc gtaaagcgcg cgcaggtggt ttcttaagtc tgatgtgaaa 540 gcccacggct caaccgtgga gggtcattgg aaactgggag acttgagtgc agaagaggaa 600 agtggaattc catgtgtagc ggtgaaatgc gtagagatat ggaggaacac cagtggcgaa 660 ggcgactttc tggtctgtaa ctgacactga ggcgcgaaag cgtggggagc aaacaggatt 720 agataccctg gtagtccacg ccgtaaacga tgagtgctaa gtgttagagg gtttccgccc 780 tttagtgctg aagttaacgc attaagcact ccgcctgggg agtacggccg caaggctgaa 840 actcaaagga attgacgggg gcccgcacaa gcggtggagc atgtggttta attcgaagca 900 acgcgaagaa ccttaccagg tcttgacatc ctctgaaaac cctagagata gggcttctcc 960 ttcgggagca gagtgacagg tggtgcatgg ttgtcgtcag ctcgtgtcgt gagatgttgg 1020 gttaagtccc gcaacgagcg caacccttga tcttagttgc catcattaag ttgggcactc 1080 taaggtgact gccggtgaca aaccggagga aggtggggat gacgtcaaat catcatgccc 1140 cttatgacct gggctacaca cgtgctacaa tggacggtac aaagagctgc aagaccgcga 1200 ggtggagcta atctcataaa accgttctca gttcggattg taggctgcaa ctcgcctaca 1260 tgaagctgga atcgctagta atcgcggatc agcatgccgc ggtgaatacg ttcccgggcc 1320 ttgtacacac cgcccgtcac accacgagag tttgtaacac ccgaagtcgg tg 1372 <110> Asian Global Co.,Ltd <120> Composition for improvement of compressive strength of concreate comprising noble Bacillus strain mixture or culture thereof as an effective component <130> HPC9131 <150> KR 10-2019-0012020 <151> 2019-01-30 <160> 2 <170> KoPatentIn 3.0 <210> 1 <211> 1277 <212> DNA <213> Bacillus megaterium <400> 1 taacacgtgg gcaacctgcc tgtaagactg ggataacttc gggaaaccga agctaatacc 60 ggataggatc ttctccttca tgggagatga ttgaaagatg gtttcggcta tcacttacag 120 atgggcccgc ggtgcattag ctagttggtg aggtaacggc tcaccaaggc aacgatgcat 180 agccgacctg agagggtgat cggccacact gggactgaga cacggcccag actcctacgg 240 gaggcagcag tagggaatct tccgcaatgg acgaaagtct gacggagcaa cgccgcgtga 300 gtgatgaagg ctttcgggtc gtaaaactct gttgttaggg aagaacaagt acgagagtaa 360 ctgcttgtac cttgacggta cctaaccaga aagccacggc taactacgtg ccagcagccg 420 cggtaatacg taggtggcaa gcgttatccg gaattattgg gcgtaaagcg cgcgcaggcg 480 gtttcttaag tctgatgtga aagcccacgg ctcaaccgtg gagggtcatt ggaaactggg 540 gaacttgagt gcagaagaga aaagcggaat tccacgtgta gcggtgaaat gcgtagagat 600 gtggaggaac accagtggcg aaggcggctt tttggtctgt aactgacgct gaggcgcgaa 660 agcgtgggga gcaaacagga ttagataccc tggtagtcca cgccgtaaac gatgagtgct 720 aagtgttaga gggtttccgc cctttagtgc tgcagctaac gcattaagca ctccgcctgg 780 ggagtacggt cgcaagactg aaactcaaag gaattgacgg gggcccgcac aagcggtgga 840 gcatgtggtt taattcgaag caacgcgaag aaccttacca ggtcttgaca tcctctgaca 900 actctagaga tagagcgttc cccttcgggg gacagagtga caggtggtgc atggttgtcg 960 tcagctcgtg tcgtgagatg ttgggttaag tcccgcaacg agcgcaaccc ttgatcttag 1020 ttgccagcat ttagttgggc actctaaggt gactgccggt gacaaaccgg aggaaggtgg 1080 ggatgacgtc aaatcatcat gccccttatg acctgggcta cacacgtgct acaatggatg 1140 gtacaaaggg ctgcaagacc gcgaggtcaa gccaatccca taaaaccatt ctcagttcgg 1200 attgtaggct gcaactcgcc tacatgaagc tggaatcgct agtaatcgcg gatcagcatg 1260 ccgcggtgaa tacgttc 1277 <210> 2 <211> 1372 <212> DNA <213> Bacillus thuringiensis <400> 2 gagcttgctc ttatgaagtt agcggcggac gggtgagtaa cacgtgggta acctgcccat 60 aagactggga taactccggg aaaccggggc taataccgga taacattttg aaccgcatgg 120 ttcgaaattg aaaggcggct tcggctgtca cttatggatg gacccgcgtc gcattagcta 180 gttggtgagg taacggctca ccaaggcaac gatgcgtagc cgacctgaga gggtgatcgg 240 ccacactggg actgagacac ggcccagact cctacgggag gcagcagtag ggaatcttcc 300 gcaatggacg aaagtctgac ggagcaacgc cgcgtgagtg atgaaggctt tcgggtcgta 360 aaactctgtt gttagggaag aacaagtgct agttgaataa gctggcacct tgacggtacc 420 taaccagaaa gccacggcta actacgtgcc agcagccgcg gtaatacgta ggtggcaagc 480 gttatccgga attattgggc gtaaagcgcg cgcaggtggt ttcttaagtc tgatgtgaaa 540 gcccacggct caaccgtgga gggtcattgg aaactgggag acttgagtgc agaagaggaa 600 agtggaattc catgtgtagc ggtgaaatgc gtagagatat ggaggaacac cagtggcgaa 660 ggcgactttc tggtctgtaa ctgacactga ggcgcgaaag cgtggggagc aaacaggatt 720 agataccctg gtagtccacg ccgtaaacga tgagtgctaa gtgttagagg gtttccgccc 780 tttagtgctg aagttaacgc attaagcact ccgcctgggg agtacggccg caaggctgaa 840 actcaaagga attgacgggg gcccgcacaa gcggtggagc atgtggttta attcgaagca 900 acgcgaagaa ccttaccagg tcttgacatc ctctgaaaac cctagagata gggcttctcc 960 ttcgggagca gagtgacagg tggtgcatgg ttgtcgtcag ctcgtgtcgt gagatgttgg 1020 gttaagtccc gcaacgagcg caacccttga tcttagttgc catcattaag ttgggcactc 1080 taaggtgact gccggtgaca aaccggagga aggtggggat gacgtcaaat catcatgccc 1140 cttatgacct gggctacaca cgtgctacaa tggacggtac aaagagctgc aagaccgcga 1200 ggtggagcta atctcataaa accgttctca gttcggattg taggctgcaa ctcgcctaca 1260 tgaagctgga atcgctagta atcgcggatc agcatgccgc ggtgaatacg ttcccgggcc 1320 ttgtacacac cgcccgtcac accacgagag tttgtaacac ccgaagtcgg tg 1372

Claims (6)

바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P] 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P]의 균주 혼합물 또는 그 배양액을 유효성분으로 포함하는 콘크리트 강도 증진용 조성물. Bacillus megaterium (Bacillus megaterium) HH1 [Accession No. KCCM12617P] and Bacillus thuringiensisis ( Bacillus thuringiensisis ) HH2 [Accession No. KCCM12618P] of the strain mixture or a composition for enhancing concrete strength comprising the culture solution as an active ingredient. 제 1 항에 있어서, 상기 조성물은 응결된 콘크리트의 휘발성 유기 화합물 농도를 저감시키는 것을 특징으로 하는 콘크리트 강도 증진용 조성물.The composition of claim 1, wherein the composition reduces the concentration of volatile organic compounds in the condensed concrete. 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P] 및 바실러스 투린지엔시스(Bacillus thuringiensisis) HH2 [기탁번호 KCCM12618P]의 균주 혼합물 또는 그 배양액을 시멘트 모르타르에 투입하는 단계를 포함하는 강도가 증진되고 휘발성 유기 화합물 농도가 저감된 콘크리트의 제조방법. Bacillus megaterium (Bacillus megaterium) HH1 [Accession No. KCCM12617P] and Bacillus thuringiensisis ( Bacillus thuringiensisis ) HH2 [Accession No. KCCM12618P] including the step of introducing the strain mixture or the culture solution into a cement mortar, the strength is enhanced and volatile Method for producing concrete with reduced organic compound concentration. 삭제delete 바실러스 메가테리움(Bacillus megaterium) HH1 [기탁번호 KCCM12617P]. Bacillus megaterium HH1 [Accession No. KCCM12617P]. 삭제delete
KR1020200005853A 2019-01-30 2020-01-16 Composition for improvement of compressive strength of concreate comprising noble Bacillus strain mixture or culture thereof as an effective component KR102233674B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020200005853A KR102233674B1 (en) 2019-01-30 2020-01-16 Composition for improvement of compressive strength of concreate comprising noble Bacillus strain mixture or culture thereof as an effective component
KR1020200161166A KR102437410B1 (en) 2019-01-30 2020-11-26 Composition for Repairing concreate structure comprising noble Bacillus strain mixture or culture thereof as an effective component

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020190012020 2019-01-30
KR20190012020 2019-01-30
KR1020200005853A KR102233674B1 (en) 2019-01-30 2020-01-16 Composition for improvement of compressive strength of concreate comprising noble Bacillus strain mixture or culture thereof as an effective component

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR1020200161166A Division KR102437410B1 (en) 2019-01-30 2020-11-26 Composition for Repairing concreate structure comprising noble Bacillus strain mixture or culture thereof as an effective component

Publications (2)

Publication Number Publication Date
KR20200094660A KR20200094660A (en) 2020-08-07
KR102233674B1 true KR102233674B1 (en) 2021-03-30

Family

ID=72049776

Family Applications (2)

Application Number Title Priority Date Filing Date
KR1020200005853A KR102233674B1 (en) 2019-01-30 2020-01-16 Composition for improvement of compressive strength of concreate comprising noble Bacillus strain mixture or culture thereof as an effective component
KR1020200161166A KR102437410B1 (en) 2019-01-30 2020-11-26 Composition for Repairing concreate structure comprising noble Bacillus strain mixture or culture thereof as an effective component

Family Applications After (1)

Application Number Title Priority Date Filing Date
KR1020200161166A KR102437410B1 (en) 2019-01-30 2020-11-26 Composition for Repairing concreate structure comprising noble Bacillus strain mixture or culture thereof as an effective component

Country Status (1)

Country Link
KR (2) KR102233674B1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101310634B1 (en) * 2012-03-19 2013-09-24 경북대학교 산학협력단 Bacillus thuringiensis knuc2103 and a cement additive for durability improvement and crack reparing of cement paste or concrete containing the same
KR101336711B1 (en) 2012-02-17 2013-12-04 전남대학교산학협력단 A composition of cement zero nature-friendly dry mortar

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100577717B1 (en) * 2004-06-12 2006-05-10 대한민국 07691049 Bacillus megaterium KR076KACC91049 promoting the growth of crops and the microbial agent containing the same
US20080293607A1 (en) * 2007-03-09 2008-11-27 Jones Brian E Alkaliphilic Bacillus Species alpha-Amylase Variants, Compositions Comprising alpha-Amylase Variants, And Methods of Use
KR100807866B1 (en) * 2007-06-29 2008-02-29 양지콘크리트(주) Method for preparing concreate vegetation shore protection block and the prepared concreate vegetation shore protection block by the same
KR20120008146A (en) 2010-07-16 2012-01-30 경북대학교 산학협력단 Composition for improvement of the compressive strength of concrete mortar comprising bacillus massiliensis knuc402 and lysinibacillus fusiformis knuc404
KR101859211B1 (en) 2016-06-29 2018-05-21 경기대학교 산학협력단 Adsorption method of microbes for growth environment of microbes when putting microbes in concrete
KR102300665B1 (en) 2018-04-18 2021-09-09 고려대학교 산학협력단 Calcium carbonate production through Lysinibacillus boronitolerans YS11 and Bacillus sp. AK13 and use thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101336711B1 (en) 2012-02-17 2013-12-04 전남대학교산학협력단 A composition of cement zero nature-friendly dry mortar
KR101310634B1 (en) * 2012-03-19 2013-09-24 경북대학교 산학협력단 Bacillus thuringiensis knuc2103 and a cement additive for durability improvement and crack reparing of cement paste or concrete containing the same

Also Published As

Publication number Publication date
KR102437410B1 (en) 2022-08-30
KR20210092664A (en) 2021-07-26
KR20200094660A (en) 2020-08-07

Similar Documents

Publication Publication Date Title
Chahal et al. Influence of bacteria on the compressive strength, water absorption and rapid chloride permeability of fly ash concrete
KR101801616B1 (en) Cement mortar composition for repairing the section of the concrete structure and repairing method of the concrete structure
KR101609697B1 (en) Cement mortar compositions un-split in water and repairing method of concrete structure therewith
KR101746220B1 (en) The concrete structure reinforcement-mortar for seismic retrofitting method and wet process-construction and seismic retrofitting method using the same
KR101832164B1 (en) Self-healing eco-friendly cement mortar composition for repairing structure and repairing method of structure therewith
KR101691845B1 (en) Mortar composition with cocos fiber for repairing concrete structure and repairing method of concrete structure therewith
KR101825152B1 (en) Cement mortar composition for repairing concrete structure with excellent corrosion-resistance and functionality and method for repairing section of concrete structure
Arredondo-Rea et al. Carbonation rate and reinforcing steel corrosion of concretes with recycled concrete aggregates and supplementary cementing materials
KR102173957B1 (en) Mortar composition for reparing and reinforcing concrete structure using acid resistant microorganism and high-sulfate cement and method for reparing and reinforcing concrete structure
CN105819718B (en) Concrete high-strength admixture, cement mixture and non-autoclaved ultra-high-strength concrete product
KR101446239B1 (en) Cement mortar composition having excellent durability, organic sewage inhibition and deodorization function, and method for repairing concrete structure using the composition
Noor et al. Effect of crumb rubber on concrete strength and chloride ion penetration resistance
KR102521730B1 (en) Water reacting functional mortar and concrete composition and repairing and reinforcing method for sewage culvert and lower plate of creekcovered concrete structure using the same
KR101455771B1 (en) Self-leveling finishing composite having synthetic polymer admixture and repairing method of the concrete structure using the composite
WO2020229797A1 (en) Biocement and self-healing bioconcrete compositions
EP2113494B1 (en) Cement additive, cement composition, cement composition comprising waste material, and processes for making and using the same
KR102233674B1 (en) Composition for improvement of compressive strength of concreate comprising noble Bacillus strain mixture or culture thereof as an effective component
KR101831661B1 (en) Cement mortar composition with improved functionality and method for repairing concrete structure therewith
Strokova et al. Composition and properties of cement system with glutaraldehyde
KR100773743B1 (en) Recipe of corrosion prevent repair mortar
KR101081830B1 (en) Environment friendly polymer cement mortar for conservation and reinforcement using powder type inorganic antibiotic and circulation aggregate
KR101310633B1 (en) Bacillus aryabhattai KNUC205 and a cement additive for durability improvement and crack reparing of cement paste or concrete containing the same
Durga et al. Estimation of durability properties of self-healing concrete influenced by different bacillus species
CN111978034B (en) Anti-permeation high-strength high-volume-stability concrete, preparation method thereof and application of concrete as cushion block for protective layer
Rollakanti et al. Experimental investigations on self-healing concrete with pseudomonas fluorescens bacteria and calcium lactate

Legal Events

Date Code Title Description
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant