KR20000040966A - Mortar for floor plastering using feldspar and preparation method thereof - Google Patents

Mortar for floor plastering using feldspar and preparation method thereof Download PDF

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KR20000040966A
KR20000040966A KR1019980056722A KR19980056722A KR20000040966A KR 20000040966 A KR20000040966 A KR 20000040966A KR 1019980056722 A KR1019980056722 A KR 1019980056722A KR 19980056722 A KR19980056722 A KR 19980056722A KR 20000040966 A KR20000040966 A KR 20000040966A
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feldspar
weight
mortar
parts
cement
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KR1019980056722A
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KR100282322B1 (en
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임병훈
정동한
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황대우
주식회사 엠티씨
정순착
에스케이건설 주식회사
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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
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/041—Aluminium silicates other than clay
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/34—Flow improvers
    • 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
    • C04B2111/60—Flooring materials

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Floor Finish (AREA)

Abstract

PURPOSE: A mortar for floor plastering using feldspar and preparation method thereof is provided, which exhibits high strength, uniform quality and prevents cracking of structure by swelling properties of feldspar. CONSTITUTION: A preparation method of mortar for floor plastering using feldspar, according to one embodiment, comprises the steps: (1) mixing 25 parts by weight of cement with 75 parts by weight of powdery feldspar, and adding 50 parts by weight of water, based on the weight of cement to make slurry; (2) adding therein 0.2 parts by weight of fluidizing agent, based on the weight of cement to make mortar for floor plastering; (3) injecting prepared mortar in a mold, followed by curing for 48 hours in the humid circumstances; (4) removing the mold, followed by curing for 5 days in the humid circumstances; and then (5) curing it for 28 days at 18-25°C under 40-80% of relative humidity.

Description

장석을 이용한 바닥용 미장 모르타르 및 이의 제조방법Plastering mortar using feldspar and its manufacturing method

본 발명은 장석을 이용한 바닥용 미장 모르타르 및 이의 제조방법에 관한 것으로, 더욱 자세하게는 바닥용 미장 모르타르를 제조함에 있어, 장석을 주 원료로 일정량 첨가하여 균열 방지 기능 및 강도를 향상시킨 바닥용 미장 모르타르 및 이의 제조방법에 관한 것이다.The present invention relates to a floor plastering mortar using feldspar and a method of manufacturing the same, and more particularly, in the preparation of floor plastering mortar, by adding a certain amount of feldspar as a main raw material for the floor plastering mortar improved crack strength and strength And it relates to a manufacturing method thereof.

일반적으로 바닥용 미장 모르타르는 주로 주택의 온돌바닥이나 슬라브의 마감용, 주차장 바닥용 등 대체로 넓은 면적을 미장하는데 이용되곤 하였다.In general, mortar for flooring was mainly used for plastering large areas such as ondol floors of houses, finishing slabs, and parking lot floors.

이러한 종래의 바닥용 미장 모르타르는 시멘트와 모래(강사, 쇄사, 하천사, 해사 등)에 균열을 방지하기 위한 목적으로 메탈라스, 수축저감재, 팽창재 등을 첨가하여 제조 시공되고 있다. 하지만, 종래 대부분의 현장에서는 원가부담으로 인해 현장 배합을 선호해 왔지만, 원재료의 품질 불안정, 혼합상태의 불균질로 인해 균열을 방지할 수 없었다.The conventional floor plaster mortar is manufactured by adding metallases, shrinkage reducing materials, expansion materials and the like for the purpose of preventing cracks in cement and sand (steel yarn, chain sand, river sand, sea sand, etc.). However, in the past, most of the sites have preferred to mix the site due to the cost burden, but the cracks could not be prevented due to the instability of the raw materials and the heterogeneity of the mixed state.

일반적으로 사용되는 수축저감재나 팽창재는 소석회와 석고가 주성분으로, C-S-H (Ⅰ)형이나(Ⅱ)의 생성을 촉진시켜 건조수축을 저감시킬 수 있는 약간의 효과는 있으나, 근본적인 대책이 될 수 없기 때문에 시공자의 재료 선택에 혼선을 가져 오곤 했다.Shrinkage reducing materials and expansion materials that are generally used are mainly composed of slaked lime and gypsum, and have a slight effect of reducing dry shrinkage by promoting the production of CSH (I) or (II), but cannot be a fundamental countermeasure. It would cause confusion in the builder's choice of materials.

한편, 종래 기술중에서 1996. 7. 18일공개된 공개번호 96-022325의『원적외선 세라믹 수경성 경화몰탈의 제조방법 및 그의 조성물』의 내용중에서 Al2O3의 공급원으로 60∼80목으로 가공한 장석을 조성물의 특징으로 하는 내용이 기재되어 있으나, 여기서 장석의 역할은 본 발명에서와 같이 팽창성을 갖는 역할이 아니라 단지 결합재와의 반응성시 Al2O3의 공급원 역활을 하기 위한 것이다.On the other hand, feldspar processed from 60 to 80 as a source of Al 2 O 3 in the contents of `` Method for preparing far-infrared ceramic hydraulic hard mortar and its composition '' published on Jul. 18, 1996 in the prior art. Although the contents of the composition are described, the role of feldspar is not intended to have an expandability as in the present invention, but merely to serve as a source of Al 2 O 3 upon reactivity with a binder.

또한, 일부 현장에서는 시멘트와 모래, 플라이애쉬를 혼합한 레미탈을 제조하여 기계식으로 시공하고 있으나, 이 제품 또한 품질의 균질성이나 균열을 방지할 수는 없었다.In addition, in some sites, the cement and sand, fly ash mixed with the remittal was manufactured and mechanically constructed, but this product also could not prevent the quality homogeneity or cracks.

따라서, 본 발명은 상기와 같은 종래 기술의 문제점을 해결하기 위한 것으로, 본 발명의 목적은 분말 혹은 입자상의 장석을 시멘트와 혼합하여 장석의 팽창 특성에 의해 구조물의 균열 발생이 억제되고, 강도가 높으며, 품질이 균질한 특성을 갖는 바닥용 미장 모르타르 및 이의 제조방법을 제공하는데 있다.Therefore, the present invention is to solve the problems of the prior art as described above, the object of the present invention is to mix the powder or particulate feldspar with cement, the occurrence of cracking of the structure is suppressed by the expansion characteristics of the feldspar, high strength To provide a floor plaster mortar having a homogeneous quality, and a method for producing the same.

상기 목적을 달성하기 위한 본 발명에 따른 바닥용 미장 모르타르는, 시멘트 약 20 내지 50 중량부와, 장석 약 50 내지 80 중량부, 시멘트 기준으로 유동화제 약 0.1 내지 0.3 중량부를 포함한 것을 특징으로 한다.Plastering mortar according to the present invention for achieving the above object is characterized in that it comprises about 20 to 50 parts by weight of cement, about 50 to 80 parts by weight of feldspar, about 0.1 to 0.3 parts by weight of a fluidizing agent based on cement.

또한, 본 발명에 따른 바닥용 미장 모르타르 제조방법은, 시멘트 약 20 내지 50 중량부와, 장석 약 50 내지 80 중량부, 시멘트 기준으로 유동화제 약 0.1 내지 0.3 중량부를 혼합한 원료에 시멘트 기준으로 물을 약 40 내지 60중량부를 첨가하여 소정의 시간동안 혼련하는 것을 특징으로 한다.In addition, the method of manufacturing floor plaster mortar according to the present invention includes water based on cement in a raw material of about 20 to 50 parts by weight of cement, about 50 to 80 parts by weight of feldspar, and about 0.1 to 0.3 parts by weight of a fluidizing agent based on cement. It is characterized by kneading for about a predetermined time by adding about 40 to 60 parts by weight.

일반적으로 장석은 지금까지 도자기 소지(소다장석), 도자기 유약(카리장석), 유리원료 등 주로 요업 측면에 사용되고 있다. 본 발명에 사용된 장석의 성분은 카리장석과 소다장석의 중간 성분으로, 이는 소다장석과 유사한 특성을 갖고 있다. 소다장석은 카리장석보다 팽창계수가 크기 때문에 도자기 소지에 사용하여 수축으로 인한 균열을 방지할 수 있다. 본 발명에서는 이러한 장석의 팽창특성을 이용한다.In general, feldspar has been mainly used in ceramic fields such as porcelain holding (soda feldspar), porcelain glaze (carrying feldspar) and glass raw materials. The feldspar component used in the present invention is an intermediate component between caryrite and soda feldspar, which has similar characteristics to soda feldspar. Soda feldspar has a larger coefficient of expansion than Carry's feldspar, so it can be used in ceramics to prevent cracking due to shrinkage. In the present invention, the expansion characteristics of such feldspar are used.

본 발명에 사용된 장석( Na2O , Al2O3 , 6SiO2 )은 Si 4면체 및 Al 4면체로 되어 있는 연쇄상 4면체로서, 각 Al이온에 대해 일당량의 Na 이온이 결합되는데, 이들 염기는 광물의 분쇄시 치환성이 된다. 따라서, 장석을 분쇄하면 염기 치환량이 증대하고, 습식 분쇄시에는 수중으로 배출된다.Feldspar used in the present invention ( Na 2 O , Al 2 O 3 , 6 SiO 2 ) Is a chain tetrahedron consisting of Si tetrahedron and Al tetrahedron, in which one equivalent of Na ions is bonded to each Al ion. Therefore, when the feldspar is pulverized, the amount of base substitution is increased, and when wet pulverized, it is discharged into water.

장석은 일반 규사나 규석과 달리 원료의 성분 함량이 다르게 나타난다. 규사의 경우는 SiO2함량이 90±5%, Al2O3 함량이 5%미만인 반면, 장석은 SiO2함량이 75∼85%, Al2O3 함량이 15∼25%정도로 수화시 C3A의 생성량과 생성율이 높다. 그러므로, 이러한 특성과 원리에 의해 장석분말을 결합재(시멘트)와 혼합하면 초기강도가 증가되고, 장석의 팽창성에 의해 건조수축을 감소시킬 뿐만 아니라 균열의 발생을 현저히 감소시킬 수 있다.Feldspar, unlike ordinary silica sand or silica, has a different content of ingredients. In the case of silica sand, the SiO 2 content is 90 ± 5%, Al 2 O 3 While the content is less than 5%, feldspar has 75 to 85% SiO 2 content, Al 2 O 3 When the content is about 15 to 25%, the amount and the rate of C3A production are high when hydrated. Therefore, when the feldspar powder is mixed with the binder (cement) according to these characteristics and principles, the initial strength is increased, and the shrinkage of the feldspar is not only reduced by dryness of the feldspar, but also significantly reduces the occurrence of cracks.

본 발명의 실시예에서는 시멘트 약 20 내지 50 중량부, 장석 약 50 내지 80 중량부, 시멘트 기준으로 유동화제 약 0.1 내지 0.3 중량부를 혼합하여 균열방지 바닥용 미장 모르타르를 제조한다. 장석은 입자상과 분말상을 혼용 사용하는데, 그 성능을 극대화하기 위하여 입자상은 골재용으로, 분말상은 충진재로 사용하는 것이 좋다.In the embodiment of the present invention by mixing about 20 to 50 parts by weight of cement, about 50 to 80 parts by weight of feldspar, about 0.1 to 0.3 parts by weight of a fluidizing agent based on cement to prepare a plaster for mortar for crack prevention floor. Feldspar uses a mixture of granular and powdery, but in order to maximize the performance of the feldspar, it is better to use the granular for the aggregate and the powder for the filler.

현재 국내에서 사용되고 있는 바닥 미장용 모르타르 시공장비는 대부분 복동식 피스톤 펌프를 사용하고 있으나, 맥동이 심하고 동력이 많이 소요되기 때문에 이동용 보다는 고정용이 많다. 또, 소규모 공사시에는 재료비보다 시공비가 많이 들기 때문에 시공량이나 시공장소의 제한을 받는다. 본 발명에서 사용된 시공 장비는 디코 솔리드 펌프로 소요동력이 적고 시공높이에 상관없이 정량공급이 가능하므로, 품질을 안정화시킬수 있고, 시공장비가 경량이므로, 운반과 설치가 간편하며, 장비 가격이 저렴하므로, 대중화할 수 있는 장점이 있다.Most mortar installation equipment for floor plastering currently used in Korea uses double-acting piston pumps, but it is more fixed than mobile because of pulsation and power consumption. In addition, the construction cost is higher than the cost of materials at the time of small-scale construction, it is limited by the construction amount and the city factory. The construction equipment used in the present invention is a deco solid pump, which requires less power and can be quantitatively supplied regardless of the construction height. Therefore, the quality of the construction equipment can be stabilized and the construction equipment is lightweight. Therefore, there is an advantage that can be popularized.

본 발명의 실시예에서는 건축용으로 온돌 바닥용 미장 모르타르의 제조에 관해서 설명하기로 한다.In the embodiment of the present invention will be described with respect to the production of plaster mortar for ondol floors for building use.

시멘트 약 25 중량부와 장석분말 약 75중량부로 건식 혼합(또는 개별사용)된 원료에 물을 시멘트 기준으로 약 50중량부를 첨가하여 슬러리를 만든 다음, 유동화제를 시멘트의 약 0.2 중량부 혼합하여 약 2분간 혼련함으로써, 온돌 바닥용 미장 모르타르가 제조된다. 그런 다음, 성형화하기 위해 지름 약 100mm, 높이 약 200mm의 몰드에 부어 상온 상압하의 습기함이나 습기실에서 약 48시간 저장 후, 몰드를 제거하고, 다시 습기함이나 습기실에서 약 5일간 저장하며, 이후 약 28일까지는 온도 약 18 내지 25℃, 상대습도 약 40 내지 80%인 실험실내의 대기중에 저장한다.About 25 parts by weight of cement and about 75 parts by weight of feldspar powder are added to about 50 parts by weight of water based on cement to the dry mixed material (or used separately) to make a slurry, and then about 0.2 parts by weight of cement is mixed with a fluidizing agent. By kneading for 2 minutes, the plastering mortar for ondol floor is manufactured. Then, it is poured into a mold having a diameter of about 100 mm and a height of about 200 mm for molding, and stored for about 48 hours in a damp or humid chamber at room temperature, and then the mold is removed, and then stored in a damp or damp chamber for about 5 days. And then stored for about 28 days in the atmosphere of the laboratory at a temperature of about 18-25 ° C. and a relative humidity of about 40-80%.

이렇게 제조된 모르타르의 물성을 표1에 나타내었다.The physical properties of the mortar thus prepared are shown in Table 1.

구 분division 비 중importance 압축강도(g/㎤)Compressive strength (g / cm3) 7일7 days 28일28 days 온돌 바닥용 미장 모르타르Plastering mortar for ondol floor 2.22.2 145145 215215

따라서, 상기와 같은 본 발명에 의하면 분말상의 장석 혹은 입자상의 장석을 시멘트와 혼합하여 장석의 팽창 특성에 의해 구조물의 균열 발생이 억제되고, 강도가 높으며, 품질이 균질한 특성을 갖는 바닥 미장용 모르타르를 얻을 수 있는 효과가 있다.Therefore, according to the present invention as described above, by mixing the powdery feldspar or particulate feldspar with cement, the occurrence of cracking of the structure is suppressed by the expansion characteristics of the feldspar, the strength and high quality, floor plastering mortar having a homogeneous quality There is an effect that can be obtained.

Claims (6)

시멘트 약 20 내지 50 중량부와, 장석 약 50 내지 80 중량부를 포함한 것을 특징으로 하는 바닥 미장용 모르타르.Floor plastering mortar comprising about 20 to 50 parts by weight of cement and about 50 to 80 parts by weight of feldspar. 제 1 항에 있어서,The method of claim 1, 상기 장석은 팽창성을 갖는 장석인 것을 특징으로 하는 바닥 미장용 모르타르.The feldspar is flooring mortar, characterized in that the feldspar having expandability. 제 1 항 또는 제 2 항에 있어서,The method according to claim 1 or 2, 상기 시멘트 기준으로 약 0.1 내지 0.3 중량부의 유동화제를 더 포함한 것을 특징으로 하는 바닥 미장용 모르타르.Floor plastering mortar, characterized in that it further comprises about 0.1 to 0.3 parts by weight of the fluidizing agent based on the cement. 미장 모르타르의 제조방법에 있어서,In the production method of plaster mortar, 시멘트 약 20 내지 50 중량부와, 장석 약 50 내지 80 중량부를 혼합한 원료에 시멘트 기준으로 물을 약 40 내지 60중량부를 첨가하여 슬러리를 만들고, 상기 슬러리에 유동화제를 소정량 첨가하여 소정의 시간동안 혼련하는 것을 특징으로 하는 바닥 미장용 모르타르의 제조방법.About 40 to 60 parts by weight of cement and about 50 to 80 parts by weight of feldspar are added to the raw material of about 40 to 60 parts by weight of water based on cement to make a slurry, and a predetermined amount of a fluidizing agent is added to the slurry for a predetermined time. Method for producing a floor plaster for mortar, characterized in that kneading during. 제 4 항에 있어서,The method of claim 4, wherein 상기 유동화제는 시멘트 기준으로 약 0.2중량부를 첨가하는 것을 특징으로 하는 바닥 미장용 모르타르의 제조방법.The fluidizing agent is a method for producing floor plastering mortar, characterized in that for adding about 0.2 parts by weight on a cement basis. 제 4 항 또는 제 5 항에 있어서,The method according to claim 4 or 5, 상기 장석은 팽창성을 갖는 장석인 것을 특징으로 하는 바닥 미장용 모르타르의 제조방법.The feldspar is a method for producing a floor plastering mortar, characterized in that the feldspar having expandability.
KR1019980056722A 1998-12-21 1998-12-21 Plastering mortar using feldspar and its manufacturing method KR100282322B1 (en)

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KR101065030B1 (en) * 2009-03-23 2011-09-16 권순성 Functional mortar and structure floor execution method using the same

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KR20020019679A (en) * 2000-09-06 2002-03-13 김두홍 Floor plastering mortar using granite powder and there of manufacture method

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KR101065030B1 (en) * 2009-03-23 2011-09-16 권순성 Functional mortar and structure floor execution method using the same

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