KR20130029669A - Manufacturing method of artificiality rock using cfrc - Google Patents

Manufacturing method of artificiality rock using cfrc Download PDF

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KR20130029669A
KR20130029669A KR1020110093082A KR20110093082A KR20130029669A KR 20130029669 A KR20130029669 A KR 20130029669A KR 1020110093082 A KR1020110093082 A KR 1020110093082A KR 20110093082 A KR20110093082 A KR 20110093082A KR 20130029669 A KR20130029669 A KR 20130029669A
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weight
mixture
primary
cement
preparing
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KR101289293B1 (en
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조창기
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조창기
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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
    • C04B14/08—Diatomaceous earth
    • 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
    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/38—Polysaccharides or derivatives thereof
    • C04B24/383—Cellulose or derivatives thereof
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/4501—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with preformed sheet-like elements
    • C04B41/4503—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with preformed sheet-like elements having an adhesive layer
    • 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
    • C04B2103/302—Water reducers

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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)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

PURPOSE: A method for manufacturing artificial rock using cellulose fiber reinforced cement(CFRC) is provided to reduce crack generation and to enhance workability and strength. CONSTITUTION: A method for manufacturing artificial rock using cellulose fiber reinforced cement(CFRC) comprises: a step of mixing 44 wt% of cement, 48 wt% of sand, 3 wt% of cellulose fiber reinforcing agent, 1 wt% of water reducing agent, and 4 wt% of diatomite and preparing a primary dry mixture; a step of mixing 100.0 parts by weight of the primary dry mixture and 15 parts by weight of water and preparing a primary mixture(S2); a step of decorating the primary mixture(S3); a step of coating the primary mixture with a mortar adhesive(S4); a step of mixing 45 wt% of cement, 49 wt% of sand, 4 wt% of diatomite, and 1 wt% of water reducing agent and preparing a secondary dry mixture; a step of mixing 100 parts by weight of secondary dry mixture and 15 parts by weight of water and preparing a secondary mixture(S5); and a step of mixing the primary and secondary mixtures. [Reference numerals] (S1) Step of preparing a framework and metal laths; (S2) Step of preparing a primary mixture by mixing cement, sand, cellulose fiber, diatomite, and a water reducing agent; (S3) Step of plastering the primary mixture on the framework with the metal laths; (S4) Step of coating the primary mixture with a mortar adhesive; (S5) Step of preparing a secondary mixture by mixing cement, sand, a water reducing agent, diatomite, and a moisture retention retarder; (S6) Step of plastering the secondary mixture on the primary mixture; (S7) Step of finishing by carving and art painting

Description

셀룰로오스섬유 강화 시멘트(씨에프알씨)를 이용한 인조바위 제작방법{ Manufacturing method of artificiality rock using CFRC }Manufacturing method of artificial rock using cellulose fiber reinforced cement (CF)

본 발명은 인조바위 제작방법에 관한 것으로, 구체적으로는 기존 인조바위 제작에 사용 되고 있는 GRC(유리섬유강화시멘트: Glass Fiber Reinforced Cement)에 첨가하던 유리섬유보강재 대신 인체에 무해한 셀룰로오스섬유보강재를 첨가하고, 강도를 높여주는 규조토와, 건조수축과 크랙발생을 줄여주는 몰탈접착제, 보수지연제를 혼합한 인조바위 제작방법에 관한 것이다.The present invention relates to a method for manufacturing artificial rock, specifically, to add a cellulose fiber reinforcement that is harmless to the human body instead of the glass fiber reinforcement that was added to GRC (Glass Fiber Reinforced Cement) used in the existing artificial rock production The present invention relates to a method of manufacturing artificial rock, which contains a mixture of diatomaceous earth, which increases strength, mortar adhesive and repair retardant, which reduces dry shrinkage and cracking.

본 발명은 인조바위 제작방법에 관한 것으로, 보다 상세하게는 인체에 무해하면서도 더욱 견고하게 자연의 모습과 유사한 인조바위의 제작방법에 관한 것이다.
The present invention relates to a method of manufacturing artificial rock, and more particularly, to a method of manufacturing artificial rock similar to the appearance of nature more harmless to the human body.

근래에 들어와서 도시의 미관이나 사람들의 부족한 휴식공간을 보충하기 위해 인조바위가 제작되고 있다. 이러한 인조바위는 이전에는 FRP(섬유강화플라스틱 : Fiber Reinforced plastic)을 이용하여 제작되었으나 FRP는 실제 자연에 있는 바위의 질감을 표현하는데 한계가 있고 또 가연성 물질이라 불에 약하며 발암물질인 석면을 보강재로 사용하기 때문에 인체에 유해한 단점이 있다.
In recent years, artificial rocks have been produced to make up for the beauty of the city and the lack of space for people to rest. These artificial rocks were previously manufactured using FRP (Fiber Reinforced plastic), but FRP is limited to express the texture of rocks in nature and is a combustible material. There is a disadvantage in that it is harmful to the human body.

그래서 이러한 문제점들을 해결하기 위해 최근 들어 사용되고 있는 것이 GRC(유리섬유강화시멘트: Glass Fiber Reinforced Cement)이다. GRC는 시멘트에 여러 혼화재를 첨가해서 제작하는 방식으로 FRP의 문제점인 바위의 질감 표현이나 불에 취약한 부분을 해결해 준다. 하지만 GRC역시 보강재로 외국에선 이미 발암 우려 물질로 분류된 유리섬유를 사용하고 있다.
Therefore, recently used to solve these problems is GRC (Glass Fiber Reinforced Cement). GRC is made by adding various admixtures to cement, which solves the problem of FRP, the texture of rock and the weakness of fire. However, GRC also uses glass fibers already classified as carcinogens in foreign countries.

유리섬유(glass Fiber)란 알카리 성분이 적은 유리를 용융하여 가늘고 길게 만든 인조섬유로서 석면의 대체물질로 사용되고 있다. 그러나 유리섬유 역시 직접 접촉하게 되면 호흡기 질환 및 피부 질환를 유발하고 나아가 암 질환까지도 일으킬 수 있다는 연구결과가 나왔다.
Glass fiber is an artificial fiber made of thin and long molten glass with low alkali content and is used as an alternative to asbestos. However, research suggests that direct contact with glass fibers can lead to respiratory and skin diseases and even cancer.

이러한 유리섬유를 이용한 GRC(유리섬유강화시멘트: Glass Fiber Reinforced Cement)는 직접 작업을 하는 작업자뿐만 아니라 조형물과 직접 접촉하는 사람들에게도 질환을 일으킬 수 있는 문제점을 가지고 있다.GRC (Glass Fiber Reinforced Cement) using such glass fibers has a problem that can cause disease not only for the workers who work directly but also for those who come into direct contact with the sculpture.

본 발명은 이와 같은 문제점을 해소하기 위해 창출된 것으로서, 인체에 무해하고 보다 견고한 인조바위의 제작방법을 제공 하는데 있다.The present invention has been made to solve such a problem, to provide a method of manufacturing a more artificial rock that is harmless to the human body.

본 발명은 인체에 무해하고 친환경적인 인조바위의 제작방법에 관한 것으로, 기존의 내알카리성 유리섬유를 첨가하는 GRC 대신에 천연섬유보강재인 셀룰로오스섬유를 첨가한 셀룰로오스섬유강화시멘트(Cellulose Fiber Reinforced Cement : 이하 CFRC라고함)로써, 섬유보강재로 셀룰로오스섬유를 첨가하며, 보수지연제를 혼합하고 강도증진을 위해 규조토를 혼합하는 것을 특징으로 한다.The present invention relates to a method of manufacturing artificial rock, which is harmless to the human body and is environmentally friendly. Cellulose Fiber Reinforced Cement comprising cellulose fiber, which is a natural fiber reinforcement, instead of GRC, which adds alkali-resistant glass fiber, is described below. CFRC), the cellulose fiber is added as a fiber reinforcement, the water retardant is mixed and the diatomaceous earth is mixed for strength.

이상 설명한 바와 같이, 본 발명에 따른 CFRC인조바위 제작방법은 종래의 GRC인조바위에 비하여 인체에 무해하고 친환경적이며, 작업성이 좋고, 강도를 증진 시키는 효과를 갖는다.As described above, the CFRC artificial rock manufacturing method according to the present invention is harmless to the human body, environmentally friendly, workability, and has the effect of enhancing the strength compared to the conventional GRC artificial rock.

도 1은 본 발명에 따른 CFRC인조바위의 구조를 도시한 도면이다.
도 2는 본 발명의 실시 예에 따른 CFRC인조바위 제작방법을 도시한 순서도이다.1 is a view showing the structure of the CFRC artificial rock according to the present invention.
Figure 2 is a flow chart illustrating a CFRC artificial rock manufacturing method according to an embodiment of the present invention.

상기 목적을 달성하기 위하여, 본 발명의 CFRC인조바위를 상세히 설명하면 다음과 같다.
In order to achieve the above object, the CFRC artificial rock of the present invention will be described in detail as follows.

시멘트 44중량%, 모래 48중량%, 셀룰로오스 섬유보강제 3중량%, 감수제 1중량%, 규조토 4중량%를 배합한 건배합물에, 상기 건배합된 총 혼합물 100중량부에 대하여 물 15중량부를 혼합한 1차혼합물(30)을 메탈라스 보강작업을 한 골조 위에 미장한 후 몰탈접착제(40)를 도포한 다음 시멘트 45중량%, 모래 49중량%, 규조토 4중량%, 감수제 1중량%, 보수지연제 1중량%를 배합한 건배합물에, 상기 건배합된 총 혼합물100중량부에 대하여 물 15중량부를 혼합한 2차 혼합물(50)을 적층하여 이루어진 CFRC인조바위에 의해 달성될 수 있다.A dry compound containing 44% by weight of cement, 48% by weight of sand, 3% by weight of cellulose fiber reinforcing agent, 1% by weight of reducing agent, and 4% by weight of diatomaceous earth was mixed with 15 parts by weight of water with respect to 100 parts by weight of the total mixture. Plastering the primary mixture (30) on the metalwork reinforced frame, and then applying mortar adhesive (40), 45% by weight of cement, 49% by weight of sand, 4% by weight of diatomaceous earth, 1% by weight of water reducing agent, maintenance retardant It can be achieved by a CFRC artificial rock made by laminating a secondary mixture 50 in which 15 parts by weight of water is mixed with respect to 100 parts by weight of the total mixture of the dry mixture in a dry compound containing 1% by weight.

상기 셀룰로오스 섬유보강재는 황마섬유보강재를 사용하는 것이 바람직 하다.The cellulose fiber reinforcement is preferably using jute fiber reinforcement.

이하, 본 발명에 바람직한 실시 예를 첨부된 도면에 의거 보다 구체적으로 살펴본다.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 CFRC인조바위 제작방법의 실시 예를 도시하고 있다. 이에 따르면, 본 발명은 메탈라스 철망을 씌운 골조(10)위에 셀룰로오스섬유(70)를 혼합한 1차 혼합물을 미장한 후, 1,2차 혼합물층 간의 접착력을 증강하기 위해서 줄눈을 만들고 몰탈접착제(40)를 도포한 후 2차 혼합물을 적층하고 인조바위 형태의 조각작업을 한 이후 아트페인팅(60)작업으로 구성되어 있다. 상기 1,2차 혼합물은 인조바위의 강도를 높여주는 규조토를 포함한다.
Figure 2 illustrates an embodiment of a CFRC artificial rock manufacturing method according to the present invention. According to the present invention, after plastering the primary mixture in which the cellulose fibers 70 were mixed on the metal framed steel frame 10, the joints were made to increase the adhesion between the primary and secondary mixture layers and the mortar adhesive ( After coating 40), the secondary mixture is laminated, and after the artificial rock engraving process is composed of art painting (60). The first and second mixture includes diatomaceous earth to increase the strength of the artificial rock.

본 발명에 사용된 주요성분의 사양은 다음과 같다.
Specifications of the main components used in the present invention are as follows.

(A) 셀룰로오스섬유 (Cellulose fiber)(A) Cellulose fiber

본 발명에 사용한 셀룰로오스섬유는 천연 황마섬유로써, 동결 저항성이 뛰어나고, 강도, 인성 및 강성 등의 우수한 특징을 가지고 있으며, 6,900kgf/cm2 이상의 인장강도를 가진다. 해강산업의 하이콘 Fiber를 사용하였다.
The cellulose fiber used in the present invention is a natural jute fiber, has excellent freezing resistance, has excellent characteristics such as strength, toughness, and rigidity, and has a tensile strength of 6,900 kgf / cm 2 or more. Hycon fiber from the marine industry was used.

(B)규조토(B) diatomaceous earth

본 발명에 사용한 규조토는 86~93%의 실리카를 함유한 다공성 구조로, 녹는점이 1400℃이상이고, 일반적인 물리화학작용에 안정적이다. 인조바위의 강도를 증진시킨다. 세라이트코리아(주)의 제품을 사용하였다.
Diatomaceous earth used in the present invention is a porous structure containing 86 to 93% of silica, having a melting point of 1400 ° C. or more, and stable to general physicochemical action. To increase the strength of the artificial rock. The product of Celite Korea Co., Ltd. was used.

(C) 보수지연제(C) repair delay

본 발명에 사용한 보수지연제는 몰탈과 물의 블리딩 현상을 방지하고, 불완전 양생을 억제하는 등의 작업성을 향상 시킨다. 쌍곰의 MC몰 7000을 사용하였다.
The water retardant used in the present invention improves workability such as preventing bleeding of mortar and water and suppressing incomplete curing. MC Mole 7000 of a double bear was used.

(D) 몰탈접착제(D) Mortar adhesive

본 발명에 사용한 몰탈접착제는 주성분이 S.B.R.과 E.V.A.로 구성되어 있으며 점도 700~1,100cps인 접착재이고, 균열을 방지해주고, 혼합물층간의 분리를 억제한다. 몰탈접착제는 혼합물층 사이에 도포 하거나 직접 혼합물에 첨가하여 사용하여도 무방하다. 범우社의 몰다인 MD-5000을 사용하였다.
The mortar adhesive used in the present invention is an adhesive having a viscosity of 700 to 1,100 cps and composed of SBR and EVA as main components, and prevents cracking and suppresses separation between mixture layers. The mortar adhesive may be applied between the mixture layers or added directly to the mixture. Bumwoo's moldine MD-5000 was used.

아래 표1은 종래의 GRC인조바위 혼합물의 구성비이며, 표2는 본 발명에 따른 CFRC인조바위 혼합물의 구성비이다.Table 1 below is a composition ratio of the conventional GRC artificial rock mixture, Table 2 is a composition ratio of the CFRC artificial rock mixture according to the present invention.

시멘트cement 모래sand 내알카리성유리섬유Alkali-resistant glass fiber 감수제Water reducing agent 1차혼합물Primary mixture 48중량%48 wt% 48중량%48 wt% 3중량%3 wt% 1중량%1 wt% 2차혼합물Secondary mixture 48중량%48 wt% 48중량%48 wt% 3중량%3 wt% 1중량%1 wt%

시멘트cement 모래sand 셀룰로오스섬유Cellulose fiber 감수제Water reducing agent 보수지연제Retardation 규조토Diatomaceous earth 1차혼합물Primary mixture 44중량%44 wt% 48중량%48 wt% 3중량%3 wt% 1중량%1 wt% 4중량%4 wt% 2차혼합물Secondary mixture 45중량%45 wt% 49중량%49 wt% 1중량%1 wt% 1중량%1 wt% 4중량%4 wt%

표1은 종래의 GRC인조바위 혼합물의 조성비를 나타낸 것으로, 시멘트 48중량%와, 모래 48중량%와, 내알카리성유리섬유 3중량%와, 감수제 1중량%로 조성된다. 반면에 표2는 본 발명에 따른 CFRC인조바위 혼합물의 조성비로 1차혼합물은 시멘트 44중량%와, 모래 48중량%와, 셀룰로오스섬유 3중량%와, 규조토 4중량%, 감수제 1중량%로 조성되고, 2차혼합물은 시멘트 45중량%와, 모래49중량%와, 감수제 1중량%와, 보수지연제 1중량%와, 규조토 4중량%로 조성된다.Table 1 shows the composition ratio of the conventional GRC artificial rock mixture, which is composed of 48% by weight of cement, 48% by weight of sand, 3% by weight of alkali-resistant glass fiber, and 1% by weight of a water reducing agent. On the other hand, Table 2 shows the composition ratio of CFRC artificial rock mixture according to the present invention, the primary mixture is composed of 44% by weight of cement, 48% by weight of sand, 3% by weight of cellulose fiber, 4% by weight of diatomaceous earth, and 1% by weight of water reducing agent. The secondary mixture is composed of 45% by weight of cement, 49% by weight of sand, 1% by weight of water reducing agent, 1% by weight of water retardant, and 4% by weight of diatomaceous earth.

셀룰로오스섬유는 기존의 내알카리성유리섬유의 대체 보강재로써, 인체에 무해하며, 규조토는 강도증진의 효과를 가져오고, 보수지연제와 몰탈접착제는 작업성 향상과 건조수축을 줄여 준다.Cellulose fiber is an alternative reinforcement of the existing alkali-resistant glass fiber, harmless to the human body, diatomaceous earth has the effect of increasing strength, water retardant and mortar adhesive improves workability and reduces dry shrinkage.

30 : 1차혼합물층 40 : 몰탈접착제층
50 : 2차혼합물층 70 : 셀룰로오스섬유 30: primary mixture layer 40: mortar adhesive layer
50: secondary mixture layer 70: cellulose fiber

Claims (3)

CFRC인조바위 제조방법에 있어서, 시멘트 44중량%, 모래 48중량%, 셀룰로오스 섬유보강제 3중량%, 감수제 1중량%, 규조토 4중량%를 배합한 건배합물에, 상기 건배합된 총 혼합물 100중량부에 대하여 물 15중량부를 혼합한 1차혼합물(30)을 미장한 후 그 위에 몰탈접착제(40)를 도포한 다음 시멘트 45중량%, 모래 49중량%, 규조토 4중량%, 감수제 1중량%, 보수지연제 1중량%를 배합한 건배합물에, 상기 건배합된 총 혼합물100중량부에 대하여 물 15중량부를 혼합한 2차 혼합물(50)이 적층된 CFRC인조바위.In the CFRC artificial rock manufacturing method, 100 parts by weight of the total mixture of the dry blended to a dry compound containing 44% by weight of cement, 48% by weight of sand, 3% by weight of cellulose fiber reinforcement, 1% by weight of reducing agent, 4% by weight of diatomaceous earth. After plastering the primary mixture 30 mixed with 15 parts by weight of water, the mortar adhesive 40 was applied thereon, followed by 45% by weight of cement, 49% by weight of sand, 4% by weight of diatomaceous earth, 1% by weight of water reducing agent, and repair. CFRC artificial rock is laminated with a secondary mixture (50) in which 15 parts by weight of water is mixed with 100 parts by weight of the total mixture of the dry blended to a dry blend containing 1% by weight of a retarder. 제 1항에 있어서 상기 셀룰로오스섬유보강재는 황마섬유보강재인 것을 특징으로 하는 CFRC인조바위. The artificial rock of claim 1, wherein the cellulose fiber reinforcement is a jute fiber reinforcement. 제 1항에 있어서 1차 혼합물과 2차 혼합물의 강도를 증진시켜주는 규조토를 혼합하는 것을 특징으로 하는 CFRC인조바위.The CFRC artificial rock according to claim 1, wherein diatomaceous earth is mixed to enhance the strength of the primary mixture and the secondary mixture.
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KR102086747B1 (en) 2018-08-01 2020-03-09 금오공과대학교 산학협력단 Cellulose nanocrystal having improved dispersibility and manufacturing method thereof
KR102227296B1 (en) 2018-08-09 2021-03-12 권희문 Nano-cellulse ceramic power admixture for cement modifying ane manufacturing method thereof

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CN104736352A (en) * 2013-06-27 2015-06-24 尹福模 Method for constructing artificial rock large structure
CN104736352B (en) * 2013-06-27 2017-04-19 尹福模 Method for constructing artificial rock large structure

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