KR101795764B1 - Bed mortar composition - Google Patents
Bed mortar composition Download PDFInfo
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- KR101795764B1 KR101795764B1 KR1020150071646A KR20150071646A KR101795764B1 KR 101795764 B1 KR101795764 B1 KR 101795764B1 KR 1020150071646 A KR1020150071646 A KR 1020150071646A KR 20150071646 A KR20150071646 A KR 20150071646A KR 101795764 B1 KR101795764 B1 KR 101795764B1
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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
- C04B28/06—Aluminous cements
- C04B28/065—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
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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
- C04B14/06—Quartz; Sand
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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
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
- C04B16/06—Macromolecular compounds fibrous
- C04B16/0675—Macromolecular compounds fibrous from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B16/0691—Polyamides; Polyaramides
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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
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
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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)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
깔 모르터 조성물이 개시된다. 건조수축이 저감된 깔 모르터 조성물로서, 시멘트 100 중량부에 대하여, 물 25 ~ 35 중량부, 모래 275 ~ 325 중량부, CSA(Calcium Sulfo aluminate) 팽창제 15 ~ 25 중량부를 포함하여 이루어지고, 이러한 재료를 배합하여 제조되는 깔 모르터는 요구되는 강도를 만족하면서 건조수축을 저감하여 건축 마감재가 탈락되는 것을 방지할 수 있는, 깔 모르터 조성물이 제공된다.A laid mortar composition is disclosed. A cement mortar composition having reduced drying shrinkage, comprising 25 to 35 parts by weight of water, 275 to 325 parts by weight of sand, and 15 to 25 parts by weight of a CSA (Calcium Sulfoaluminate) swelling agent per 100 parts by weight of cement, A mortar composition is provided which is capable of reducing the drying shrinkage while satisfying the required strength and preventing the building finish material from falling off.
Description
본 발명은 깔 모르터 조성물에 관한 것이다. 보다 상세하게는, 모르터의 건조수축에 따른 건축 마감재의 탈락을 방지할 수 있는 건조수축이 저감된 깔 모르터 조성물에 관한 것이다.
The present invention relates to a carmule composition. More particularly, the present invention relates to a laid mortar composition with reduced drying shrinkage that can prevent dropping of a building finish material due to drying shrinkage of the mortar.
건축 마감재는 건축물의 바닥 또는 내외장에 부착되어 건축물의 외면을 마감하는 부재로서, 석재, 인조석, 타일 등을 포함한다. 이러한 건축 마감재는 건축물의 바닥이나 건물 외벽에 깔 모르터를 평탄하게 시공한 후 그 위에 접착제와 함께 부착된다.A building finishing material is a member which is attached to the floor or interior and exterior of a building and closes the outer surface of the building, and includes stone, artificial stone, tile and the like. These architectural finishes are laid on the floor of the building or on the exterior walls of the building with flat moulder and then with adhesive.
특히, 석재 마감재는 자연석을 채굴하여 건축물의 바닥이나 옥외벽면에 사용하기 위해 공장에서 가공된 석재판으로서, 고급스러운 건축물을 꾸미기 위하여 건축물 내외장재는 물론 건축물의 바닥 마감재까지 석재 마감재를 사용하는 범위가 커지고 있다. Particularly, the stone finishing material is a stone plate processed at a factory for use in the floor or outdoor wall of a building by mining natural stone. In order to decorate a luxurious building, the range of using the stone finishing material to the floor finishing material of the building as well as the interior and exterior materials of the building is increased have.
깔 모르터는 건축물의 바닥이나 외벽에 석재 등의 마감재 등을 부착하기 전에 평탄도나 마감 두께 등을 확보하기 위해 10mm에서 100mm까지 두껍게 시공되는데, 이러한 두꺼운 시공 두께로 인해 다른 모르터에 비해 건조수축이 많이 발생하고 이에 따라 석재 등의 마감재가 탈락될 우려가 있다.The mull mortar is applied thickly from 10mm to 100mm to ensure flatness and finishing thickness before attaching the finishing material such as stone to the floor or outer wall of the building. Because of such thick construction thickness, There is a possibility that the finishing material of the stone or the like is dropped.
건축 마감재를 건축물에 시공하기 위한 용도로 사용되는 깔 모르터의 경우, 양생 시 수축변형에 의한 영향으로 건축 마감재의 파손, 탈락, 균열이 발생하게 되어 깔 모르터에서 발생하는 건조수축을 저감시키기 위해 많은 연구가 진행 중이지만 요구되는 강도를 만족하면서 건조수축을 효과적으로 방지하는데 한계가 있는 실정이다.
In the case of the mortar used for the construction of the building finishing material in the building, damage, detachment and cracking of the finishing material occur due to the shrinkage deformation at the time of curing, so as to reduce drying shrinkage in the mortar There is a limit in effectively preventing drying shrinkage while satisfying the required strength.
본 발명은 요구되는 강도를 만족하면서 건조수축을 저감하여 건축 마감재가 탈락되는 것을 방지할 수 있는 깔 모르터 조성물을 제공하는 것이다.
The present invention provides a laid mortar composition capable of reducing the drying shrinkage while satisfying the required strength and preventing the building finish material from falling off.
본 발명의 일 측면에 따르면, 건조수축이 저감된 깔 모르터 조성물로서, 시멘트 100 중량부에 대하여, 물 25 ~ 35 중량부, 모래 275 ~ 325 중량부, CSA(Calcium Sulfo Aluminate) 팽창제 15 ~ 25 중량부를 포함하는, 깔 모르터 조성물이 제공된다.According to one aspect of the present invention, there is provided a laid mortar composition having reduced drying shrinkage, which comprises 25 to 35 parts by weight of water, 275 to 325 parts by weight of sand, 15 to 25 parts by weight of a CSA (Calcium Sulfo Aluminate) ≪ / RTI >
플라이 애쉬 40 ~ 60 중량부를 더 포함할 수 있다. And 40 to 60 parts by weight of fly ash.
폴리카본산 혼화제(polycarbonate) 4 ~ 15 중량부를 더 포함할 수 있다.And 4 to 15 parts by weight of a polycarbonate acid polycarbonate.
폴리아미드(Polyamide) 섬유 1.5 ~ 2.5 중량부를 더 포함할 수 있다.
And 1.5 to 2.5 parts by weight of polyamide fiber.
본 발명의 실시예에 따르면, 요구되는 강도를 만족하면서 건조수축을 저감하여 건축 마감재가 탈락되는 것을 방지할 수 있는 깔 모르터를 제조할 수 있다.
According to the embodiment of the present invention, it is possible to manufacture a molded mortar which can prevent drying and shrinkage while satisfying the required strength and prevent the building finish material from falling off.
본 발명은 다양한 변환을 가할 수 있고 여러 가지 실시예를 가질 수 있는 바, 특정 실시예들을 예시하고 상세한 설명에 상세하게 설명하고자 한다. 그러나, 이는 본 발명을 특정한 실시 형태에 대해 한정하려는 것이 아니며, 본 발명의 사상 및 기술 범위에 포함되는 모든 변환, 균등물 내지 대체물을 포함하는 것으로 이해되어야 한다. 본 발명을 설명함에 있어서 관련된 공지 기술에 대한 구체적인 설명이 본 발명의 요지를 흐릴 수 있다고 판단되는 경우 그 상세한 설명을 생략한다.The invention is capable of various modifications and may have various embodiments, and particular embodiments are exemplified and will be described in detail in the detailed description. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
이하, 본 발명에 따른 깔 모르터 조성물의 실시예를 참조하여 상세히 설명하기로 한다.Hereinafter, the present invention will be described in detail with reference to embodiments of the present invention.
본 실시예에 따른 깔 모르터 조성물은, 건조수축이 저감된 깔 모르터 조성물로서, 시멘트 100 중량부에 대하여, 물 25 ~ 35 중량부, 모래 275 ~ 325 중량부, CSA(Calcium Sulfo aluminate) 팽창제 15 ~ 25 중량부를 포함하여 이루어지고, 이러한 재료를 배합하여 제조되는 깔 모르터는 요구되는 강도를 만족하면서 건조수축을 저감하여 건축 마감재가 탈락되는 것을 방지할 수 있다.The cement mortar composition according to the present embodiment is a cement mortar composition having reduced drying shrinkage. The cement mortar composition comprises 25 to 35 parts by weight of water, 275 to 325 parts by weight of sand, 15 to 20 parts by weight of a CSA (Calcium Sulfoaluminate) The mortar prepared by compounding such a material can reduce the drying shrinkage while satisfying the required strength, and prevent the building finish material from falling off.
깔 모르터 조성물은, 건축 마감재를 건축물의 바닥 이나 외벽에 부착하여 마감하고자 할 때 건축 마감재가 부착면에 평탄하고 고르게 부착시키고 마감 두께 등을 확보하기 위해 두께가 최소 10mm이상으로 시공되어 사용될 수 있다. 본 실시예에 있어 건축 마감재는 대리석, 화강석, 현무암 등으로 제조되는 석재, 석재판, 인조석, 타일 등을 포함하며, 건축물의 바닥뿐만 아니라 내외장의 마감에 사용될 수 있다.The mortar composition may be applied to the building finishing material at a minimum thickness of at least 10 mm in order to adhere the building finishing material to the floor or outer wall of the building and finish the building finishing material smoothly and evenly. In this embodiment, the architectural finishing material includes a stone, a stone plate, an artificial stone, a tile, and the like, which are made of marble, granite, basalt, etc., and can be used for finishing not only the floor of the building but also inside and outside.
본 실시예에 따른 깔 모르터 조성물은, 시멘트 100 중량부에 대하여, 모래 275 ~ 325 중량부, 물 25 ~ 35 중량부가 배합된다. 이와 같이 시멘트와 물의 배합은 콘크리트 배합 설계에서 물/시멘트비로 표현될 수 있는데, 이는 물/시멘트비가 25 ~ 35% 해당됨을 의미하고, 시멘트와 모래의 배합비는 1: 2.5 ~ 3.5 해당됨을 의미한다.The lawn multer composition according to the present embodiment contains 275 to 325 parts by weight of sand and 25 to 35 parts by weight of water relative to 100 parts by weight of cement. Thus, the combination of cement and water can be expressed as water / cement ratio in the concrete formulation design, which means that the water / cement ratio is 25 ~ 35%, and the blending ratio of cement and sand is 1: 2.5 ~ 3.5.
물의 함량이 25 중량부 미만이면 워커빌리티가 나빠지고, 수화작용에 필요한 물의 양이 부족하게 되어 요구되는 압축강도 및 품질을 확보할 수 없고, 물의 함량이 35 중량부 초과하면 요구되는 강도 발현에 문제가 발생한다.If the content of water is less than 25 parts by weight, the workability is deteriorated and the amount of water required for the hydration is insufficient, so that the required compressive strength and quality can not be ensured. If the content of water exceeds 35 parts by weight, Occurs.
시멘트로는 보통 포틀랜드 시멘트, CSA(calcium sulfo aluminate)계 시멘트 등이 사용될 수 있다.As the cement, Portland cement and CSA (calcium sulfo aluminate) cement are usually used.
그리고, 시멘트 100 중량부에 대하여, 모래 275 ~ 325 중량부가 배합된다. 모래의 함량이 275 중량부 미만이면, 상대적으로 시멘트의 비율이 높아져 양생 시 물과의 수화작용 과정에서 건조수축이 과다하게 발생할 수 있고, 모래의 함량이 325 중량부 초과하면 양생 후 깔 모르터의 강도 저하로 인해 깔 모르터의 품질에 문제가 발생할 수 있다.Then, 275 to 325 parts by weight of sand are blended with 100 parts by weight of cement. If the content of the sand is less than 275 parts by weight, the proportion of the cement relative to the cement increases, so that excessive drying shrinkage may occur during hydration with water during curing. If the content of sand exceeds 325 parts by weight, Degradation can cause problems with the quality of the molded mortar.
CSA(Calcium Sulfo Aluminate) 팽창제는, 콘크리트에서 발생하는 수축균열을 방지하여 콘크리트 구체의 수밀성을 향상시킨다. 콘크리트는 양생과정이나 사용과정에서 건조수축이 발생하여 균열이 발생하게 되는데 CSA 팽창제를 혼합하며 미리 팽창되도록 함으로써 건조수축을 보상하여 콘크리트의 결합력을 높이게 된다.CSA (Calcium Sulfo Aluminate) swelling improves the watertightness of concrete spheres by preventing shrinkage cracks in concrete. Concrete is cracked due to drying shrinkage during curing process or use process. CSA swelling agent is mixed and expanded beforehand to compensate for drying shrinkage to increase the bonding force of concrete.
CSA 팽창제의 함량이 15 중량부 미만이면 요구하는 팽창성능을 얻을 수 없고, 25 중량부 초과하면 팽창이 과다하여 팽창균열이 발생할 우려가 있다.If the content of the CSA expanding agent is less than 15 parts by weight, the required expansion performance can not be obtained. If the amount is more than 25 parts by weight, the expansion is excessive, and expansion cracks may occur.
한편, 본 실시예에 따른 깔 모르터 조성물은, 플라이 애쉬(Fly ash) 40 ~ 60 중량부를 더 포함할 수 있다. Meanwhile, the laid mortar composition according to this embodiment may further include 40 to 60 parts by weight of fly ash.
플라이 애쉬(fly ash)는 미세한 입자로 형성되어 깔 모르터를 보다 치밀하게 하므로 강도의 증진을 기할 수 있고, 포졸란 반응에 의하여 콘크리트의 장기 강도를 증진시키고 콘크리트 조직의 수밀성, 내구성, 내화학성을 강화시키는 역할을 한다.Fly ash is formed of fine particles and makes the mortar more dense. It can increase the strength, improve the long-term strength of concrete by pozzolanic reaction and strengthen the watertightness, durability and chemical resistance of concrete structure. It plays a role.
시멘트 100 중량부에 대하여 플라이 애쉬의 함량이 40 중량부 미만이면 요구되는 강도를 확보하기 어렵고, 60 중량부 초과하면 건조수축이 과다하게 발생하게 된다. If the content of fly ash is less than 40 parts by weight with respect to 100 parts by weight of cement, it is difficult to secure the required strength. If the amount exceeds 60 parts by weight, excessive drying shrinkage may occur.
또한, 본 실시예에 따른 깔 모르터 조성물은, 폴리카본산 혼화제(polycarbonate) 4 ~ 15 중량부를 더 포함할 수 있다.In addition, the laid mortar composition according to this embodiment may further include 4 to 15 parts by weight of a polycarbonate polycarbonate.
폴리카본산 혼화제(polycarbonate)는 깔 모르터 제조 시 깔 모르터의 성능을 개선하는데 사용되는 혼화제로서 깔 모르터의 충격 강도와 인장 강도를 증진시킬 수 있다. 특히, 인장 강도의 증진을 통해 양생 과정에서 건조수축에 의해 깔 모르터에 균열이 발생하는 것을 방지할 수 있다.Polycarbonate can improve the impact strength and tensile strength of carmotor as an admixture used to improve the performance of carmoter when manufacturing carmoter. Particularly, it is possible to prevent the occurrence of cracks in the molded mortar due to drying shrinkage during the curing process by increasing the tensile strength.
폴리카본산 혼화제의 양이 시멘트 100 중량부에 대하여 4 중량부 이상일 때 콘크리트에 충분한 유동성과 인장강도를 확보할 수 있고 15 중량부 이하로 함으로써 유동성을 제한하여 깔 모르터의 인장강도를 확보할 수 있다.When the amount of the polycarboxylic acid admixture is more than 4 parts by weight with respect to 100 parts by weight of the cement, sufficient fluidity and tensile strength can be secured in the concrete, and when the amount is less than 15 parts by weight, the flowability can be restricted and the tensile strength of the mortar can be secured .
또한, 본 실시예에 따른 깔 모르터 조성물은, 폴리아미드(Polyamide) 섬유 1.5 ~ 2.5 중량부를 더 포함할 수 있다. 깔 모르터의 강도 증진이 필요한 경우, 폴리아미드 섬유가 깔 모르터 내부에 균일하게 분산되도록 폴리아미드 섬유를 혼입시킴으로써 깔 모르터의 결합력을 높여 강도가 증진되고, 깔 모르터의 건조수축을 저감하여 균열이 발생되는 것을 방지할 수 있다.In addition, the laid mortar composition according to this embodiment may further include 1.5 to 2.5 parts by weight of polyamide fiber. When the strength of the molded mortar is required, the polyamide fibers are mixed so that the polyamide fibers are uniformly dispersed in the mortar, thereby enhancing the strength of the mortar and increasing the strength of the mortar and reducing the drying shrinkage of the mortar, Can be prevented.
폴리마이드 섬유가 1.5 중량부 미만으로 배합되는 경우 깔 모르터 내부에 균일하게 분산되는 량이 적어 강도 개선 효과가 미미하고, 2.5 중량부를 초과하여 혼입되는 경우 과다하게 분산되어 오히려 강도가 저하될 우려가 있다.When the polyamide fibers are blended at less than 1.5 parts by weight, the effect of improving the strength is insignificant because the amount of the polyamide fibers is less uniformly dispersed in the mortar. If the blend is incorporated in excess of 2.5 parts by weight, the fibers may be excessively dispersed.
상술한 바와 같이, 본 실시예에 따른 깔 모르터 조성물은, 요구 강도를 만족하면서 건조수축을 저감되어, 깔 모르터의 양생 과정에서 건조수축으로 인한 균열로, 건축 마감재가 탈락되는 것을 방지할 수 있다.As described above, the artificial mortar composition according to the present embodiment can reduce the drying shrinkage while satisfying the required strength, and prevent the architectural finish material from falling off due to cracks due to drying shrinkage during the curing process of the artificial mortar.
이하의 실시예를 통하여 본 발명에 따른 깔 모르터 조성물을 설명하기로 한다. 다만, 하기의 실시예는 본 발명을 예시하기 위한 것이므로 이들만으로 본 발명을 한정하는 것은 아니다.
The present invention will now be described with reference to the following examples. However, the following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
(실시예 1)(Example 1)
실시예 1은, 표 1에 기재된 바와 같이, 시멘트 100 중량부에 대하여, 모래 279 중량부, 물 33.33 중량부, CSA 팽창제 21 중량부로 배합한 것이다.In Example 1, as shown in Table 1, 279 parts by weight of sand, 33.33 parts by weight of water and 21 parts by weight of a CSA swelling agent are blended with 100 parts by weight of cement.
실시예 1의 배합에 따라 제작된 공시체에 대하여 KSL ISO 679에 의한 압축 강도를 시험한 결과 7일 압축강도는 12.79Mpa로서, 바닥용 깔 모르터의 최소 요구 강도인 28일 압축강도 6 ~ 8MPa 이상을 나타내었고, 실시예 1의 건조수축 변형률을 분석한 결과 -0.09mm로 나타났다.The compressive strength according to KSL ISO 679 was tested for the specimens prepared according to the formulation of Example 1, and the compressive strength at 7 days was 12.79 MPa. The minimum compressive strength of the bottom mortar for 28 days was 6 ~ 8 MPa And the dry shrinkage strain of Example 1 was analyzed to be -0.09 mm.
(실시예 2)(Example 2)
실시예 2는, 실시예 1에서 플라이 애쉬와 폴리카본산 혼화제가 추가로 배합된 것으로, 시멘트와 모래 배합비와 물시멘트비는 실시예 1과 동일하다.In Example 2, the fly ash and the polycarboxylic acid admixture were further blended in Example 1, and the blending ratio of cement and sand and the ratio of water cement were the same as in Example 1.
실시예 2는, 표 2에 기재된 바와 같이, 시멘트 100 중량부에 대하여, 모래 279.44 중량부, 물 33.18 중량부, CSA 팽창제 21.03 중량부, 플라이 애쉬 46.73 중량부, 폴리카본산 혼화제 4.67 중량부로 배합한 것이다.Example 2 was prepared by blending 100 parts by weight of cement with 279.44 parts by weight of sand, 33.18 parts by weight of water, 21.03 parts by weight of CSA swelling agent, 46.73 parts by weight of fly ash, and 4.67 parts by weight of a polycarbonate acid admixture will be.
실시예 2의 배합에 따라 제작된 공시체에 대하여 KSL ISO 679에 의한 압축 강도를 시험한 결과 7일 압축강도는 14.18Mpa로서, 바닥용 깔 모르터의 최소 요구 강도인 28일 압축강도 6 ~ 8MPa 이상을 나타내었고, 실시예 2의 건조수축 변형률을 분석한 결과 0.025mm로 나타났다.The compressive strength according to KSL ISO 679 was tested for the specimens prepared in accordance with the formulation of Example 2, and the compressive strength at 7 days was 14.18 MPa. The minimum compressive strength of the bottom mortar for 28 days was 6 ~ 8 MPa And the dry shrinkage strain of Example 2 was analyzed to be 0.025 mm.
(실시예 3)(Example 3)
실시예 3은, 실시예 2에서 플라이 애쉬와 폴리카본산 혼화제의 함량을 달리 조성한 것으로, 나머지 재료의 함량은 실시예 2와 동일하다.In Example 3, the content of the fly ash and the polycarboxylic acid admixture was differently formed in Example 2, and the content of the remaining materials was the same as in Example 2.
실시예 3은, 표 3에 기재된 바와 같이, 시멘트 100 중량부에 대하여, 모래 279 중량부, 물 33.36 중량부, CSA 팽창제 21 중량부, 플라이 애쉬 55.52 중량부, 폴리카본산 혼화제 13.3 중량부로 배합한 것이다.In Example 3, as shown in Table 3, blended with 279 parts by weight of sand, 33.36 parts by weight of water, 21 parts by weight of CSA swelling agent, 55.52 parts by weight of fly ash, and 13.3 parts by weight of polycarboxylic acid admixture with respect to 100 parts by weight of cement will be.
실시예 3의 배합에 따라 제작된 공시체에 대하여 KSL ISO 679에 의한 압축 강도를 시험한 결과 7일 압축강도는 15.05Mpa로서, 바닥용 깔 모르터의 최소 요구 강도인 28일 압축강도 6 ~ 8MPa 이상을 나타내었고, 실시예 3의 건조수축 변형률을 분석한 결과 0.040mm로 나타났다.The compressive strength according to KSL ISO 679 was tested on the specimens prepared according to the formulation of Example 3. The compressive strength at 7 days was 15.05 MPa and the minimum required strength of the bottom mortar was 28 days and the compressive strength was 6 to 8 MPa or more And the drying shrinkage strain of Example 3 was analyzed to be 0.040 mm.
(실시예 4)(Example 4)
실시예 4는, 실시예 3에서 폴리아미드 조성물을 추가 조성한 것으로, 나머지 재료의 함량은 실시예 3과 동일하다.In Example 4, a polyamide composition was further prepared in Example 3, and the content of the remaining materials was the same as in Example 3. [
실시예 4는, 표 4에 기재된 바와 같이, 시멘트 100 중량부에 대하여, 모래 279 중량부, 물 33.36 중량부, CSA 팽창제 21 중량부, 플라이 애쉬 55.52 중량부, 폴리카본산 혼화제 13.3 중량부, 폴리아미드 1.94 중량부로 배합한 것이다.In Example 4, as shown in Table 4, 279 parts by weight of sand, 33.36 parts by weight of water, 21 parts by weight of CSA swelling agent, 55.52 parts by weight of fly ash, 13.3 parts by weight of polycarboxylic acid admixture, Amide in an amount of 1.94 parts by weight.
실시예 4의 배합에 따라 제작된 공시체에 대하여 KSL ISO 679에 의한 압축 강도를 시험한 결과 7일 압축강도는 15.51Mpa로서, 바닥용 깔 모르터의 최소 요구 강도인 28일 압축강도 6 ~ 8MPa 이상을 나타내었고, 실시예 4의 건조수축 변형률을 분석한 결과 0.010mm로 나타났다.The compressive strength according to KSL ISO 679 was tested on the specimens prepared according to the formulation of Example 4. The compressive strength at 7 days was 15.51 MPa and the compressive strength of 6 to 8 MPa And the drying shrinkage strain of Example 4 was analyzed to be 0.010 mm.
이상에서 살펴본 바와 같이, 건축 마감재 석재공사 및 보수공사 등에 본 발명의 깔 모르터 조성물을 이용할 경우, 요구되는 강도를 만족하면서 건조수축에 의한 균열이 저감되어 건축 마감재가 탈락되는 것을 방지할 수 있다.
As described above, when the carmotor composition of the present invention is used for the construction and repair work of the building finishing material, it is possible to prevent cracks due to drying and shrinking while satisfying the required strength, and to prevent the finish material from falling off.
전술한 실시예 외의 많은 실시예들이 본 발명의 특허청구범위 내에 존재한다.Many embodiments other than the above-described embodiments are within the scope of the claims of the present invention.
Claims (4)
시멘트 100 중량부에 대하여,
물 25 ~ 35 중량부,
모래 275 ~ 325 중량부,
CSA(Calcium Sulfo Aluminate) 팽창제 15 ~ 25 중량부,
플라이 애쉬 40 ~ 60 중량부,
폴리카본산 혼화제(polycarbonate) 4 ~ 15 중량부를 포함하는, 깔 모르터 조성물.
A laid mortar composition having reduced drying shrinkage,
With respect to 100 parts by weight of cement,
25 to 35 parts by weight of water,
275 to 325 parts by weight of sand,
15 to 25 parts by weight of a CSA (Calcium Sulfo Aluminate) swelling agent,
40 to 60 parts by weight of fly ash,
And 4 to 15 parts by weight of a polycarbonate acid polycarbonate.
폴리아미드(Polyamide) 섬유 1.5 ~ 2.5 중량부를 더 포함하는, 깔 모르터 조성물.The method according to claim 1,
And 1.5 to 2.5 parts by weight of a polyamide fiber.
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| JP2013103847A (en) * | 2011-11-11 | 2013-05-30 | Univ Of Tokyo | Cement admixture and cement composition |
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