KR100918909B1 - Composition of binder using waste pottery - Google Patents
Composition of binder using waste pottery Download PDFInfo
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- KR100918909B1 KR100918909B1 KR20080039652A KR20080039652A KR100918909B1 KR 100918909 B1 KR100918909 B1 KR 100918909B1 KR 20080039652 A KR20080039652 A KR 20080039652A KR 20080039652 A KR20080039652 A KR 20080039652A KR 100918909 B1 KR100918909 B1 KR 100918909B1
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/16—Waste materials; Refuse from building or ceramic industry
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/26—Carbonates
- C04B14/28—Carbonates of calcium
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
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- 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
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- 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)
- Environmental & Geological Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
본 발명은 폐도자기 분말을 이용한 증기양생용 결합재에 관한 것으로, 상세하게는 시멘트의 일정량을 종래에 폐기물로서 처리되는 폐도자기를 단순 분쇄하여 대체 사용함으로서 종래에 폐기물로서 처리되던 폐도자기의 처리문제를 해결함과 동시에 물성 및 작업성이 우수한 증기양생용 결합재에 관한 것이다. More particularly, the present invention relates to a binder for steam curing using waste ceramic powder, and more particularly, to a process for treating a waste ceramics which has conventionally been treated as waste by simply pulverizing waste ceramics, And a binder for steam curing which is excellent in physical properties and workability.
도자기는 생산시 치수의 정확도와 표면 정도에 따라 제품으로써의 가치를 가지고 있어 건조와 소성에 따른 불량품의 발생은 피할 수 없다. 현재 우리나라의 도자기 제조업체에서는 전국적으로 연간 5000톤 이상의 많은 도자기 기물이 발생하고 있다. 특히 도자기 제조업체의 약 70%가 모여 있는 경기도의 이천, 광주, 여주지역에는 1000여개의 요장이 있어 연간 3000톤 이상의 파도자기가 배출되고 있고, 그 양도 점점 산업폐기물로써 증가 추세를 보이고 있다. Ceramics have a value as a product according to the accuracy of the dimension and the degree of the surface during production, and the occurrence of defective products due to drying and firing is inevitable. At present, Korea's ceramics manufacturers are producing more than 5000 tons of ceramics every year nationwide. In particular, Icheon, Gwangju, and Yeoju areas in Gyeonggi province, where about 70% of ceramic manufacturers are gathered, have more than 1,000 complications, and more than 3,000 tons of waves are emitted each year, and the amount is increasing as industrial waste.
또한 그 동안 지정폐기물로 취급되던 폐도자기는 자원의 재활용을 위해 건설 폐기물로 폐기물의 분류가 바뀌게 되어 재활용에 따른 각종 규제와 제재가 약화되어 재활용성의 유용도가 높아지게 되었다. In addition, waste ceramics which have been treated as designated waste during the period have been classified as waste of construction as a construction waste for recycling of resources, so that various regulations and sanctions for recycling are weakened and the usefulness of recyclability has been increased.
기존의 폐도자기의 재활용방안으로는 약간의 파쇄 후 콘크리트용 골재로 대체하거나 분쇄 후 도자기나 여타의 세라믹소재로 재소성하는 것에 의존하고 있다. 그러나 이러한 재활용방안은 실제 적용 시 기존제품보다 물성이 저하되거나 적용범위가 부족한 까닭에 새로운 재활용방안이 시급하다 할 수 있다Conventional recycling of waste ceramics depends on replacing concrete with concrete after crushing a little, or re-firing with ceramics or other ceramics after crushing. However, this recycling method is in urgent need of a new recycling method because the physical properties are lowered or the application range is less than that of existing products
한편, 현재 사용되고 있는 시멘트 결합재는 다양한 혼화재료를 사용하여 제조되고 있으며 증기양생 시 사용되는 혼화재료는 포졸란 재료인 플라이애시, 메타카올린, 실리카 흄등이 사용된다. 그러나 이러한 혼화재료들은 현재 사용량 증가로 인하여 가격대가 시멘트와 비슷한 수준에서 2～3배 이상의 가격대로 상승하였다. On the other hand, currently used cement binder is manufactured by using various admixture materials, and the admixture materials used in steam curing include pozzolanic materials such as fly ash, meta kaolin and silica fume. However, due to the increased use of these admixtures, the price range has risen to two to three times more than the price of cement.
콘크리트 2차 제품을 생산하는 업체는 대부분 증기양생을 통하여 제품을 생산하고 있으며 원가상승과 유가상승 등의 이유로 생산단가상승의 이유로 혼화재료의 사용에 있어 어려움을 갖고 있다. 또한 시멘트 가격 또한 상승하는 추세에 있어 이러한 어려움을 가중시키고 있다. Most of the companies that produce concrete secondary products produce steam through curing, and have difficulties in using the admixture because of rising cost and rising oil prices. Cement prices are also on the rise, adding to these difficulties.
이와 같은 종래의 문제점을 해결하기 위한 본 발명은 시멘트의 일정량을 종래에 폐기물로서 처리되던 폐도자기를 대체 사용하여 폐도자기의 처리문제를 해결함과 동시에 물성 및 작업성이 우수한 증기양생용 결합재를 제공하는 것을 목적으로 한다.In order to solve such conventional problems, the present invention solves the problem of disposal of waste ceramics by replacing a certain amount of cement with waste ceramics which has conventionally been treated as waste, and at the same time provides a binding material for steam curing excellent in physical properties and workability .
상기와 같은 목적을 달성하기 위한 본 발명은, 폐도자기 분말 4~25중량%, 천연무수석고 3~10중량%, 소석회 3~5중량% 및 시멘트 65~90중량%가 포함되어 이루어지는 것을 특징으로 하는 폐도자기 분말을 이용한 증기양생용 결합재를 제공한다.In order to achieve the above object, the present invention is characterized in that it comprises 4 to 25% by weight of waste ceramic powder, 3 to 10% by weight of natural anhydrite, 3 to 5% by weight of slaked lime and 65 to 90% by weight of cement The present invention provides a binder for steam curing using waste ceramic powder.
특히, 상기 폐도자기 분말의 비표면적은 4000~6000cm2/g인 것이 바람직하다.Particularly, the specific surface area of the waste ceramic powder is preferably 4000 to 6000 cm 2 / g.
이하, 본 발명의 폐도자기 분말을 이용한 증기양생용 결합재에 대해 상세히 설명하면 다음과 같다.Hereinafter, the binder for steam curing using the waste ceramic powder of the present invention will be described in detail as follows.
본 발명의 폐도자 분말을 이용한 증기양생용 결합재는 폐도자기 분말 4~25중량%, 천연무수석고 3~10중량%, 소석회 3~5중량% 및 시멘트 65~90중량%가 포함되어 이루어진다.The binder for vapor curing using the waste ceramic powder of the present invention comprises 4 to 25% by weight of waste ceramic powder, 3 to 10% by weight of natural anhydrous gypsum, 3 to 5% by weight of slaked lime and 65 to 90% by weight of cement.
상기 폐도자기 분말은 시멘트와 혼합 후 배합시 시멘트 내부의 에트링가이트 및 각종 수화물이 생성될 경우 내부 공극을 충진시켜 강도를 증진시키는 것으로, 전체 증기양생용 결합재에 대하여 4~25중량% 혼합된다. 4중량% 미만으로 혼합되는 경우 미세공극 충진효과가 미비하여 요구하는 강도를 얻을 수 없고, 25중량% 초과로 혼합되는 경우 초기 강도 발현에 문제가 있다.The waste ceramics powder is mixed with cement and mixed with the cement to increase the strength by filling the inner cavity when etringing wite and various hydrates are generated therein, and it is mixed with 4 ~ 25 wt% of the whole steam curing binders. If they are mixed at less than 4% by weight, the effect of filling the micropores is insufficient and the required strength can not be obtained. When they are mixed at more than 25% by weight, there is a problem in initial strength development.
그리고 폐도자기 분말의 비표면적은 4000~6000 cm2/g인 것이 바람직하고, 4000cm2/g 미만인 경우 미세공극 충진 효과가 미비하여 강도가 저하되고, 6000cm2/g 초과인 경우 미세공극 충진효과는 우수하나 유동성이 저하되어 성형성이 좋지 못하는 문제가 있다.The specific surface area of the pulverized ceramics powder is preferably 4000-6000 cm2 / g. When the particle diameter is less than 4000cm2 / g, the micropore filling effect is insufficient and the strength is decreased. When the particle diameter is more than 6000cm2 / g, There is a problem that the moldability is poor.
한편, 폐도자기는 pH는 중성이며, 용출에 대하여 안정적인 폐기물로서 분쇄 후에도 안정성을 가지기 때문에 취급에 있어서도 안전하고 편리하여 제조시 2차 환경오염의 문제가 없으며 단순분쇄만으로 사용이 가능한 이점이 있다. 또한 폐도자기 분말을 사용함으로써 종래의 폐기물을 재활용할 수 있는 등 환경친화적인 이점이 있다.On the other hand, since the pH of the waste ceramics is neutral and the waste is stable to dissolution, it has safety after handling even after grinding, so it is safe and convenient to handle, and there is no problem of secondary environmental pollution during manufacture. In addition, by using waste ceramic powder, conventional waste can be recycled, thus providing environment-friendly advantages.
그리고 상기 천연무수석고는 초기강도의 발현을 위한 것으로, 건조처리한 후 분쇄 및 분말화하여 사용하는 것이 좋다. The above-mentioned natural anhydrous gypsum is used for the initial strength development, and it is preferable to use it after pulverization and pulverization after drying treatment.
천연무수석고는 전체 증기양생용 결합재에 대하여 3~10중량%를 혼합하여 사용하고, 3중량% 미만으로 혼합사용할 경우 에트링가이트를 초기에 다량 생성하지 못하여 초기 강도발현에 문제가 있고, 10중량% 초과로 혼합사용할 경우 에트링가이 트의 과다 생성에 의한 콘크리트 팽창 균열이 발생하고 강도가 저하되는 문제가 있다.The natural anhydrous gypsum is used in an amount of 3 to 10% by weight based on the entire steam curing binders. When the mixed gypsum is mixed at less than 3% by weight, a large amount of ettringite can not be produced at an early stage, %, There is a problem that concrete expansion cracks are generated due to excessive formation of ettringite and the strength is lowered.
상기 소석회는 증기양생시 폐도자기 분말과 반응하여 강도를 증진시키기 위한 것으로, 전체 증기양생용 결합재에 대하여 3~5중량%가 혼합사용된다. 3중량% 미만으로 혼합사용되는 경우 폐도자기 분말의 자극제로서 효과가 미비하고, 5중량% 초과로 혼합사용되는 경우 작업성의 저하와 수화열 증가의 문제가 있다.The slaked lime is used for improving the strength by reacting with the pulverized powder at the time of steam curing, and it is mixed with 3 to 5% by weight of the whole steam curing binders. When it is used in an amount of less than 3% by weight, it is not effective as a stimulant for pulverized ceramics powder, and when it is mixed in an amount exceeding 5% by weight, there is a problem of lowering workability and increasing hydration heat.
그리고 상기 시멘트는 전체 증기양생용 결합재에 대하여 65~90중량% 혼합사용되고, 65중량% 미만으로 혼합되는 경우 중성화에 약하고 화학적 내구성이 악화되는 문제가 있고, 90중량% 초과로 혼합되는 경우 제조비용이 상승되는 문제가 있다.When the cement is mixed with less than 65% by weight, the cement is poor in neutralization and the chemical durability is deteriorated. When the cement is mixed in an amount exceeding 90% by weight, There is a problem of rising.
본 발명의 증기양생용 결합재는 상온에서 2간 정도의 전치시간을 거친 후 65~75℃의 조건하에서 6시간 정도의 양생시간을 거쳐 경화하게 된다.The binder for steam curing according to the present invention is cured by curing at a temperature of 65 to 75 ° C for 6 hours after curing at a room temperature for about 2 minutes.
이와 같이 본 발명의 증기양생용 결합재는 시멘트의 일정량을 종래에 폐기물로서 처리되는 폐도자기를 단순 분쇄하여 대체 사용함으로서 종래에 폐기물로서 처리되던 폐도자기의 처리문제를 해결함과 동시에 물성 및 작업성이 우수한 효과가 있다.As described above, the binder for steam curing of the present invention can solve the problem of disposal of waste ceramics, which has been conventionally treated as waste, by simply pulverizing waste ceramics, which has been conventionally treated as waste, by replacing a certain amount of cement, It has excellent effect.
이하, 본 발명의 폐도자기 분말을 이용한 증기양생용 결합재를 실시예를 들어 더욱 상세히 설명하면 다음과 같고, 본 발명의 권리범위는 하기의 실시예에 한정되는 것은 아니다.Hereinafter, the binder for steam curing using the waste ceramic powder of the present invention will be described in more detail with reference to the following examples, but the scope of the present invention is not limited to the following examples.
[실시예 1][Example 1]
비표면적 4500cm2/g인 폐도자기 분말 4중량%, 천연무수석고 3중량%, 소석회 3중량% 및 시멘트 90중량%를 혼합하여 증기양생용 결합재를 제조하였다.4 wt% of waste ceramic powder having a specific surface area of 4500 cm 2 / g, 3 wt% of natural anhydrite, 3 wt% of slaked lime and 90 wt% of cement were mixed to prepare a steam curing binders.
[실시예 2][Example 2]
실시예 1과 달리 폐도자기 분말을 비표면적 6000cm2/g인 것을 사용하여 증기양생용 결합재를 제조하였다.Unlike Example 1, a waste ceramic material having a specific surface area of 6000 cm 2 / g was used as a waste ceramic powder.
[실시예 3][Example 3]
비표면적 6000cm2/g인 폐도자기 분말 10중량%, 천연무수석고 10중량%, 소석회 3중량% 및 시멘트 77중량%를 혼합하여 증기양생용 결합재를 제조하였다.10 wt% of waste ceramic powder having a specific surface area of 6000 cm 2 / g, 10 wt% of natural anhydrous gypsum, 3 wt% of slaked lime and 77 wt% of cement were mixed to prepare a steam curing binders.
[실시예 4][Example 4]
비표면적 4500cm2/g인 폐도자기 분말 20중량%, 천연무수석고 10중량%, 소석회 5중량% 및 시멘트 65중량%를 혼합하여 증기양생용 결합재를 제조하였다.20 wt% of waste ceramic powder having a specific surface area of 4500 cm 2 / g, 10 wt% of natural anhydrite, 5 wt% of slaked lime and 65 wt% of cement were mixed to prepare a steam curing binders.
[실시예 5][Example 5]
비표면적 4500cm2/g인 폐도자기 분말 25중량%, 천연무수석고 5중량%, 소석회 5중량% 및 시멘트 65중량%를 혼합하여 증기양생용 결합재를 제조하였다.25% by weight of waste ceramic powder having a specific surface area of 4500 cm 2 / g, 5% by weight of natural anhydrous gypsum, 5% by weight of slaked lime and 65% by weight of cement were mixed to prepare a steam curing binders.
[비교예 1][Comparative Example 1]
폐도자기 분말 등을 혼합하지 않고, 일반 시멘트만을 결합재로서 사용하였다.And waste ceramics powder were not mixed and only general cement was used as a binder.
[비교예 2][Comparative Example 2]
비표면적 3000cm2/g인 폐도자기 분말 10중량%, 천연무수석고 2중량%, 소석회 2중량% 및 시멘트 86중량%를 혼합하여 증기양생용 결합재를 제조하였다.10% by weight of waste ceramic powder having a specific surface area of 3000 cm 2 / g, 2 % by weight of natural anhydrite, 2% by weight of slaked lime and 86% by weight of cement were mixed to prepare a steam curing binders.
[비교예 3][Comparative Example 3]
비표면적 4500cm2/g인 폐도자기 분말 10중량%, 천연무수석고 15중량%, 소석 회 8중량% 및 시멘트 67중량%를 혼합하여 증기양생용 결합재를 제조하였다.10% by weight of waste ceramic powder having a specific surface area of 4500 cm 2 / g, 15% by weight of natural anhydrous gypsum, 8% by weight of cerium oxide and 67% by weight of cement were mixed to prepare a steam curing binders.
[비교예 4][Comparative Example 4]
비표면적 4500cm2/g인 폐도자기 분말 30중량%, 천연무수석고 5중량%, 소석회 5중량% 및 시멘트 60중량%를 혼합하여 증기양생용 결합재를 제조하였다.30% by weight of waste ceramic powder having a specific surface area of 4500 cm 2 / g, 5% by weight of natural anhydrous gypsum, 5% by weight of slaked lime and 60% by weight of cement were mixed to prepare a steam curing binders.
상기 실시예 1 내지 4와 비교예 1 내지 3의 조성을 표 1로 나타냈다.The compositions of Examples 1 to 4 and Comparative Examples 1 to 3 are shown in Table 1.
[표 1] 증기양생용 결합재의 혼합비[Table 1] Mixing Ratio of Binder for Steam Curing
[시험예 1] 압축강도 시험[Test Example 1] Compressive strength test
실시예 1~5 및 비교예 1~4의 결합재를 1kg에 각각 표준사 2.45kg, 물 0.5L를 강제식 믹서에 투입하여 약 3분간 각 조성재료를 균질하게 혼합시킨 후 5×5×5의 몰드에 타설하여 증기양생시켜 실시예 1~4 및 비교예 1~3의 공시체를 얻었다.To each 1 kg of the binders of Examples 1 to 5 and Comparative Examples 1 to 4, 2.45 kg of a standard yarn and 0.5 L of water were put into a forced mixer to homogeneously mix the respective composition materials for about 3 minutes, And placed in a mold for vapor curing to obtain specimens of Examples 1 to 4 and Comparative Examples 1 to 3.
이때 증기양생은 가열시 온도 상승 속도는 20℃/h 정도로 하고 최고온도가 65~75℃ 정도에서 6시간 정도 양생을 실시한 후 서서히 온도를 내려 12시간 경과 후에 탈형을 실시하였다.At this time, the steam curing was performed at a temperature rising rate of 20 ° C / h and a maximum temperature of 65 to 75 ° C for about 6 hours, followed by slowly cooling the temperature to 12 hours.
이와 같이 얻어진 실시예 1~5, 비교예 1~4의 공시체를 100ton 용량의 압축강도 시험기를 이용하여 강도시험을 실시하였고, 그 결과는 표 2로 나타냈다.The specimens of Examples 1 to 5 and Comparative Examples 1 to 4 thus obtained were subjected to a strength test using a 100 ton capacity compressive strength tester, and the results are shown in Table 2.
[표 2] 공시체의 압축강도 시험결과[Table 2] Compressive strength test results of specimens
실시예 1 내지 5의 경우 비교예 1 및 2에 비하여 모두 압축강도가 높게 나타났고, 초기 강도가 높아 증기양생을 통한 조기강도의 확보가 유리하였다. 비교예 4의 공시체의 경우 균열이 발생하여 강도가 저하되었다.Compressive strengths of Examples 1 to 5 were higher than those of Comparative Examples 1 and 2, and early strength was high due to steam curing. In the case of the specimen of Comparative Example 4, cracks were generated and the strength was lowered.
[시험예 2] 플로우테이블 시험[Test Example 2] Flow table test
증기양생용 결합재의 작업성 및 성형을 확인하기 위하여 KS L 511 모르타트 플로우테이블 시험방법을 실시하였고, 그 결과는 표 3으로 나타냈다.In order to confirm the workability and molding of the coupling agent for steam curing, the KS L 511 mortar flow table test method was carried out and the results are shown in Table 3.
[표 3] 플로우테이블 시험결과[Table 3] Flow table test results
위 표 3과 같이 실시예 1~5의 경우 재료분리에 있어 안정적이고 유동성이 우수함에 따라 플로우가 16.7cm 이상으로 우수하였으나, 비교예 3의 경우 플로우가 14cm로서 작업성 및 성형성이 좋지 못하였다.As shown in Table 3, in Examples 1 to 5, the flow was stable at 16.7 cm or more due to stable material flow and excellent fluidity. In Comparative Example 3, the flow rate was 14 cm, and workability and moldability were not good .
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| KR101679726B1 (en) | 2015-12-29 | 2016-11-25 | 한라대학교 산학협력단 | High performance concrete composition using waste pottery powder |
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| KR940009098A (en) * | 1992-10-08 | 1994-05-16 | 서승석 | Method of manufacturing dry materials using coal ash |
| KR0118631B1 (en) * | 1994-10-04 | 1998-07-01 | 구본무 | High Strength Hardener Composition |
| KR19980027828A (en) * | 1996-10-18 | 1998-07-15 | 조성민 | Recycling method of waste foundry sand and its recycled aggregate |
| KR20090012556A (en) * | 2007-07-30 | 2009-02-04 | 주식회사 대원바텍 | High-strenght concrete powder mineral admixture composition |
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| KR940009098A (en) * | 1992-10-08 | 1994-05-16 | 서승석 | Method of manufacturing dry materials using coal ash |
| KR0118631B1 (en) * | 1994-10-04 | 1998-07-01 | 구본무 | High Strength Hardener Composition |
| KR19980027828A (en) * | 1996-10-18 | 1998-07-15 | 조성민 | Recycling method of waste foundry sand and its recycled aggregate |
| KR20090012556A (en) * | 2007-07-30 | 2009-02-04 | 주식회사 대원바텍 | High-strenght concrete powder mineral admixture composition |
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| KR101146373B1 (en) | 2009-04-09 | 2012-05-17 | 전북대학교산학협력단 | High-strenght centrifugal concrete powder mineral admixture composition |
| KR101679726B1 (en) | 2015-12-29 | 2016-11-25 | 한라대학교 산학협력단 | High performance concrete composition using waste pottery powder |
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