KR100276795B1 - Manufacturing method of waterproofing agent for concrete with excellent waterproofing - Google Patents

Manufacturing method of waterproofing agent for concrete with excellent waterproofing Download PDF

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KR100276795B1
KR100276795B1 KR1019980021859A KR19980021859A KR100276795B1 KR 100276795 B1 KR100276795 B1 KR 100276795B1 KR 1019980021859 A KR1019980021859 A KR 1019980021859A KR 19980021859 A KR19980021859 A KR 19980021859A KR 100276795 B1 KR100276795 B1 KR 100276795B1
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parts
waterproofing
concrete
cement
water
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KR1019980021859A
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Korean (ko)
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KR20000001536A (en
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이헌구
손종락
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이헌구
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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
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/06—Inhibiting the setting, e.g. mortars of the deferred action type containing water in breakable containers ; Inhibiting the action of active ingredients
    • C04B40/0608—Dry ready-made mixtures, e.g. mortars at which only water or a water solution has to be added before use
    • 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
    • C04B41/50—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 inorganic materials
    • 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
    • C04B14/047—Zeolites
    • 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
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02—Treatment
    • C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
    • 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
    • C04B28/04—Portland cements
    • 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/27—Water resistance, i.e. waterproof or water-repellent 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)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Civil Engineering (AREA)
  • Aftertreatments Of Artificial And Natural Stones (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

본 발명은 천연 제올라이트(zeolite)를 함유하는 방수용 시멘트 조성물의 제조방법에 관한 것으로서, 더욱 상세하게는 포트란트 시멘트 65-85부, 초속경 시멘트 10-18부, 염화칼슘 1-2부, 규산소다 1-4부, 수산화나트륨 1-3부에 천연 제올라이트(天然沸石) 2-8부를 첨가한후 분쇄기(Pot mill)에서 온풍으로 건조시키면서 충분히 혼합 분쇄함으로써, 천연 제올라이트의 화학적 특성인 수분흡수, 흡착성과 물리적 특성인 다공성 결정구조에 의한 강도증진 및 수밀성 향상등의 상승작용으로 우수한 방수성을 갖는 방수용 시멘트 조성물을 제공하게되며, 이 조성물은 사용시 물 100-200중량부를 첨가하고 균일하게 혼련시켜 사용하는 것으로, 특히 콘크리트 불럭 구조물의 방수용으로 매우 유익하다.The present invention relates to a method for producing a waterproof cement composition containing a natural zeolite, more specifically, 65-85 parts of Portland cement, 10-18 parts of cemented carbide, 1-2 parts of calcium chloride, sodium silicate 1 -4 parts, 2-8 parts of natural zeolite is added to 1-3 parts of sodium hydroxide, and then mixed and pulverized while drying with a warm air in a pot mill to obtain water absorption and adsorption characteristics It provides a waterproof cement composition having excellent waterproof properties by synergy such as strength improvement and watertightness improvement by the porous crystal structure, which is a physical property, and this composition is used by adding 100-200 parts by weight of water and kneading uniformly, It is particularly beneficial for the waterproofing of concrete block structures.

Description

방수성이 뛰어난 콘크리트용 방수제의 제조방법Manufacturing method of waterproofing agent for concrete with excellent waterproofing

본 발명은 방수성이 뛰어난 콘크리트용 방수제의 제조방법에 관한 것으로, 특히 본 발명은 천연 제올라이트(Zeolite)를 함유하는 시멘트 혼합재료를 온풍기로 건조시키면서 분쇄기(Pot Mill)에 의해 충분히 혼합 분쇄시켜서 된 방수성이 우수한 콘크리트용 방수제의 제조방법에 관한 것이다.The present invention relates to a method for producing a waterproof waterproofing agent for concrete having excellent waterproofing, and in particular, the present invention relates to a waterproofing property obtained by sufficiently mixing and pulverizing a cement mixed material containing natural zeolite by a pot mill while drying with a hot air heater. It relates to a method for producing an excellent waterproofing agent for concrete.

콘크리트는 원래 불투수성이지만, 때때로 약간의 투수가 문제가 되거나, 균열로 인하여 누수되는 경우가 발생하게 된다. 뿐만 아니라, 콘크리트 블럭과 같은 구조물은 투수되기 쉬우므로 불투수성으로 바꿀 필요가 있다. 이때 콘크리트에 방수성을 부여하거나 균열 및 누수를 방지할 목적으로 방수제를 사용한다, 방수제는 무기질계 또는 유기질계등 그 종류가 다양하지만, 화학적 조성에 의하여 분류하면 염화칼슘계, 규산소다계, 지방산계, 파라핀계, 고분자 에멀젼계, 감수제등으로 구분할 수 있고, 그 중 대표적인 것은 파라핀계 및 폴리머인 수성디스퍼션 규산질의 미분말을 들 수 있다, 전자는 세멘트에 물을 흡수시키거나 건조시켜 콘크리트 속에서 굳어 발수층과 불투수층을 만들고, 후자는 소위 포졸란 반응 즉 콘크리트 속의 수용성 수산화칼슘과 규산 및 물이 반응하여 불용성 규산 칼슘수화물을 만들어 조직을 치밀하게 하기 때문이다.Concrete is originally impermeable, but sometimes a small amount of permeability becomes a problem or leaks due to cracking. In addition, structures such as concrete blocks are likely to be permeable and need to be changed to impermeable. At this time, waterproofing agent is used for the purpose of imparting waterproofing property to concrete or preventing cracks and leaks. The waterproofing agent has various kinds such as inorganic type or organic type, but if classified according to chemical composition, it is based on calcium chloride type, sodium silicate type, fatty acid type, Paraffin-based, high-molecular emulsion-based, water-reducing agent and the like can be divided into a typical one of the paraffin-based and the polymer is an aqueous dispersion siliceous fine powder, the former absorbs water in the cement or dried to solidify in concrete water repellent This is because the latter forms an impermeable layer, and the latter is a so-called pozzolanic reaction, in which water-soluble calcium hydroxide in the concrete reacts with silicic acid and water to form insoluble calcium silicate hydrate, which makes the structure dense.

그러나, 이들중 강알카리성은 시멘트에 급결성을 부여하지만 동시에 시멘트의 강도를 저하시켜 그 수명을 반감케 하는 원인이 되며, 계면활성제와 같이 친수성이 있을 경우, 시멘트 입자간의 결속력을 저해하는 결과가 되어 구축물의 수명을 단축시키는 단점이 있다.However, among these, strong alkalinity imparts fastness to cement but at the same time causes the strength of the cement to decrease by half, and when hydrophilic such as a surfactant is used, the cohesion between cement particles is inhibited. There is a disadvantage of shortening the life of the construct.

본 발명은 이러한 문제점을 해결하기 위하여, 천연 포졸란의 일종인 제올라이트(Zeolite, 拂石)를 함유케하여 제올라이트의 화학적 특성인 수분흡수성, 흡착성, 이온 교환성과 물리적 특성인 다공성 결정구조에 의한 강도증진 및 수밀성 향상등의 상승작용을 이용하여 우수한 방수성과 작업성 및 가공성이 우수한 콘크리트용 방수제를 제조하는데 그 목적이 있다.In order to solve this problem, the present invention contains a zeolite (Zeolite), a kind of natural pozzolanic, to enhance the strength by porous crystal structure of water absorption, adsorption, ion exchangeability and physical properties of the zeolite The purpose is to produce a waterproofing agent for concrete having excellent waterproofness, workability and workability by using synergy such as watertightness improvement.

지금까지 실리카와 알루미나가 결합된 결정성구조를 갖는 천연 포졸란(Pozzolana)의 일종인 제올라이트를 가지고 콘크리트용 방수제를 제조한 예는 없다.Until now, there is no example of manufacturing a waterproofing agent for concrete with zeolite, which is a kind of natural Pozzolana having a crystalline structure in which silica and alumina are combined.

본 발명 방수제에 사용하는 제올라이트(zeolite)는 제1도에 나타난바와 같은 X선 회절무늬(pattern)와 제2도에서와 같은 적외선 스펙트럼을 갖고 있으며 이를 분석하여 보면, 클리노프틸로라이트(clinoptilolite)를 주성분으로 하고 모데나이트(mordenite), 몬트모릴로나이트(montmorillonite)와 석영이 각각 소량씩 함유되어 있다(표 1 참조).The zeolite used in the waterproofing agent of the present invention has an X-ray diffraction pattern (pattern) as shown in FIG. 1 and an infrared spectrum as shown in FIG. 2, and when analyzed therein, clinoptilolite The main ingredient is mordenite, montmorillonite and quartz in small amounts (see Table 1).

본 발명에 사용하는 천연 제올라이트(zeolite)의 화학성분을 분석한 결과는 다음과 같다.The results of analyzing the chemical composition of the natural zeolite (zeolite) used in the present invention are as follows.

클리노프틸로라이트의 결정구조는 단사정계(monoclinic)이고, 단위세포의 화학식은 Na6[(AlO2)6(SiO2)30]·24H2O로 표시되고, 공도의 크기는 3-5Å이며, 특히 CO2, O2, 및 H2O등을 쉽게 흡착할 수 있고, 공기중 70℃까지는 열적으로 매우 안정하다.The crystal structure of clinoptilolite is monoclinic, and the chemical formula of the unit cell is represented by Na 6 [(AlO 2 ) 6 (SiO 2 ) 30 ] · 24H 2 O, with a pore size of 3-5 kV. In particular, CO 2 , O 2 , H 2 O and the like can be easily adsorbed, and are very thermally stable up to 70 ° C. in air.

한편, 모데나이트는 결정구조가 정방정계(orthorhombic)이고, 단위세포의 화학식은 Na8.7[(AlO2)8.7(SiO2)39.3]·24H2O이며, 공도의 크기는 약 6.2Å정도이다.On the other hand, mordenite has an orthorhombic crystal structure, the chemical formula of the unit cell is Na 8.7 [(AlO 2 ) 8.7 (SiO 2 ) 39.3 ] · 24H 2 O, and the pore size is about 6.2 kPa.

본 발명에 사용하는 나트륨염은 물에 잘 녹으며 낮은 어느점을 가지고 있기때문에 겨울공사에서도 잘 얼지 않게 된다. 또한 콘크리트의 요구 특성에 따라 나트륨염의 사용량은 각각 다르지만 보통 30%용액이 사용된다. 소량 사용할 때 이들만의 존재는 정상적인 감수효과를 나타내고, 다량 사용할 때는 지연 감수효과를 나타난다. 소량을 염화칼슘(CaCl2)과 혼합하면 거의 색이 없고 침전이 없는 용액으로 급결 감수한다.Sodium salt used in the present invention is well soluble in water and because it has a low point does not freeze well in winter construction. In addition, although the amount of sodium salt used varies depending on the required characteristics of concrete, a 30% solution is usually used. The presence of only them when used in a small amount shows a normal susceptibility effect, and delayed susceptibility effect in a large amount. When a small amount is mixed with calcium chloride (CaCl 2 ), the solution is quenched with a solution that has almost no color and no precipitate.

제1도는 본 발명 콘크리트용 방수제에 함유된 천연제올라트(zeolite)의 X-선 회절패턴(pattern).1 is an X-ray diffraction pattern of a natural zeolite contained in the waterproofing agent for concrete of the present invention.

제2도는 본 발명 콘크리트용 방수제에 함유된 천연제올라이트의 적외선(FT-IR) 스펙트럼.2 is an infrared (FT-IR) spectrum of the natural zeolite contained in the waterproofing agent for concrete of the present invention.

제3도는 본 발명 콘크리트용 방수제의 성능 검사용 기구의 모식도.Figure 3 is a schematic diagram of the mechanism for testing the performance of the waterproofing agent for concrete of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 시멘트층 2 : 방수제 도막층1: cement layer 2: waterproof coating layer

본 발명은 포트란트시멘트 65-85부, 초속경시멘트 10-18부에 염화칼슘 1-2부, 규산소다 1-4부, 수산화나트륨 1-3부를 첨가하고, 여기에 상기 천연 제올라이트를 2-8부 첨가한 후, 온풍기를 사용하여 건조시키고, 분쇄기(Pot mill)에서 10-15시간동안 120rpm으로 충분히 혼합 분쇄하여 400메쉬(mesh)이상의 방수제 분말을 얻는다. 본 발명에 의하여 제조된 콘크리트용 방수제는 사용시 물 100-200 중량부를 첨가하고 균일하게 교반하면 방수액으로 충분히 사용할 수 있다.In the present invention, 1-2 parts of calcium chloride, 1-4 parts of sodium silicate, and 1-3 parts of sodium hydroxide are added to 65-85 parts of the cement cement, 10-18 parts of the superhard cement, and the natural zeolite 2-8 is added thereto. After the addition, the mixture was dried using a hot air blower, and mixed and pulverized at 120 rpm for 10-15 hours in a pot mill to obtain a waterproof powder of 400 mesh or more. The waterproofing agent for concrete prepared according to the present invention can be used sufficiently as a waterproofing solution if 100-200 parts by weight of water is used and uniformly stirred.

본 발명에 의하여 제조된 콘크리트용 방수제의 성능테스트에 사용된 기구는 제3도에 도시된바와 같이 PVC관 하부에 시멘트층을 만들었으며 물이 잘 투수될 수 있도록 시멘트와 모래의 혼합비를 1:5로 배합하였다. 시멘트층 하단에 본 발명에 의하여 제조된 콘크리트 방수액을 도포하고 공기중에서 서서히 건조시킨 후 건조가 완료된 PVC관에 물 2.5리터 채운 후 경시별 누수정도를 육안으로 관찰하여 평가하였다.The apparatus used for the performance test of the waterproofing agent for concrete manufactured according to the present invention, as shown in Figure 3 made a cement layer in the lower part of the PVC pipe and the mixing ratio of cement and sand 1: 5 so that water is well permeable Was formulated. The concrete waterproofing solution prepared according to the present invention was applied to the bottom of the cement layer and slowly dried in air, and filled with 2.5 liters of water in the dried PVC pipe, and then visually evaluated the degree of leakage over time.

이하 실시예에 의거 본 발명을 구체적으로 설명한다.The present invention will be described in detail with reference to the following Examples.

[실시예 1]Example 1

포트란트 시멘트 75부Portland Cement-75

초속경 시멘트 15부Carbide cement 15 parts

천연 제올라이트 6부Part 6 natural zeolite

CaCl21부CaCl 2 part 1

규산소다 2부Sodium Silicate Part 2

수산화나트륨 1부1 part sodium hydroxide

상기 조성의 혼합물을 분쇄기에 넣고 15시간동안 120rpm으로 혼합 분쇄하여 500메쉬(mesh)로 제조한 본 발명 방수제 분말 300 그램에 물 100그램을 넣고 균일하게 교반하여 방수용액을 얻고 이 방수용액을 제3도의 PVC관 하부의 세멘트층 외면에 도포하고 공기중에서 5일간 서서히 건조시켰다.The mixture of the above composition was put into a grinder and mixed and pulverized at 120 rpm for 15 hours to put 100 grams of water into 300 grams of the waterproofing powder of the present invention prepared as 500 mesh, and stirred uniformly to obtain a waterproofing solution. The cement layer was applied to the outer surface of the cement layer at the bottom of the PVC pipe and dried slowly in the air for 5 days.

건조가 완료되면 PVC관에 물을 2,5리터 채운 후 경시별 누수정도를 육안으로 관찰하여 본 결과 완전하게 방수처리가 되었다.After drying, the PVC pipe was filled with 2,5 liters of water, and the leakage of water was observed visually.

[실시예 2]Example 2

포트란트 시멘트 70부Portland cement 70

초속경 시멘트 14부Carbide cement 14 parts

천연 제올라이트 8부Part 8 natural zeolite

CaCl21부CaCl 2 part 1

규산소다 4부Sodium Silicate Part 4

수산화나트륨 3부Sodium hydroxide 3 parts

상기 조성의 혼합물을 분쇄기에 넣고 15시간 동안 120rpm으로 혼합 분쇄하여 500메쉬(mesh)로 제조한 본 발명 방수제 분말 300그램에 물 150그램을 넣고 균일하게 교반하여 방수용액을 얻은 다음, 이 방수용액을 제3도의 관 하부의 세멘트층 외부면에 도포하고 공기중에서 5일간 서서히 건조시켰다.The mixture of the composition was put in a grinder and mixed and pulverized at 120 rpm for 15 hours to put 150 grams of water in 300 grams of the waterproofing powder of the present invention prepared as 500 mesh, and stirred uniformly to obtain a waterproof solution. It was applied to the outer surface of the cement layer in the lower part of the tube of FIG. 3 and dried slowly in air for 5 days.

건조가 완료되면 PVC 관에 물을 2,5리터 채운 후 경시별 누수정도를 육안으로 관찰하여 본 결과 완전하게 방수처리가 되었다.After drying, the PVC pipe was filled with 2,5 liters of water, and the water leakage over time was visually observed.

천연 포졸란의 일종인 제올라이트를 사용하였으므로 제오라이트의 화학적 특성인 우수한 수분흡수, 흡착성, 이온교환성과 물리적 특성인 다공성 결정구조로 인한 강도증진과 수밀성 향상등의 상승효과를 거둘수 있어 방수성과 작업성이 우수한 콘크리트용 방수제를 제조할 수 있게 되었다.Since zeolite, a kind of natural pozzolane, is used, it has excellent synergy effect such as enhanced water absorption, adsorption, ion exchange, and porous crystal structure, which is a chemical property of zeolite. It is now possible to prepare a water repellent.

Claims (1)

포트란트시멘트 65-85부, 초속경시멘트 10-18부에 염화칼슘 1-2부, 규산소다 1-4부, 수산화나트륨 1-3부를 첨가하고, 여기에 천연 제올라이트(Zeolite) 2-8부를 투입한 다음, 분쇄기(Pot mill)에서 온풍으로 건조시키면서 혼합 분쇄시킴을 특징으로하는 콘크리트용 방수제의 제조방법.Add 1-2 parts of calcium chloride, 1-4 parts of sodium silicate, 1-3 parts of sodium hydroxide, and add 2-8 parts of natural zeolite to 65-85 parts of portant cement, 10-18 parts of superhard cement. Then, the method of producing a waterproofing agent for concrete, characterized in that the mixed grinding while drying with a warm air in a pot mill.
KR1019980021859A 1998-06-12 1998-06-12 Manufacturing method of waterproofing agent for concrete with excellent waterproofing KR100276795B1 (en)

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Cited By (3)

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KR100359710B1 (en) * 2000-03-15 2002-11-04 한성기업 주식회사 A method for preparing materials having penetration pores by employing hydrophilic surfactants of solid state
KR100855625B1 (en) 2003-02-25 2008-09-01 (주)콘테크 Water repellency agent for reinforced concrete construction, manufacturing process thereof, and waterproofing method using the same
CN104773966A (en) * 2014-02-09 2015-07-15 黄小仙 Preparation method of binding material mix

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CN103864379B (en) * 2014-02-09 2015-07-29 杨华强 A kind of preparation method of high strength cement goods
CN104609792B (en) * 2014-02-09 2016-08-24 广州市盈坚建材科技发展有限公司 A kind of have the preparation method that high-effective water-proof protection against the tide expands the mortar of the impervious function of cracking resistance

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JPS61219752A (en) * 1985-01-10 1986-09-30 インステイテユ　ナシヨナル　デ　サイエンス　アプリ−ク　デ　リヨン Structural mixing material based on borazon and glass fiber and manufacture
KR960037607A (en) * 1995-04-27 1996-11-19 이재복 High Strength Cement Mixture Composition for Steam Curing

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JPS61219752A (en) * 1985-01-10 1986-09-30 インステイテユ　ナシヨナル　デ　サイエンス　アプリ−ク　デ　リヨン Structural mixing material based on borazon and glass fiber and manufacture
KR960037607A (en) * 1995-04-27 1996-11-19 이재복 High Strength Cement Mixture Composition for Steam Curing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100359710B1 (en) * 2000-03-15 2002-11-04 한성기업 주식회사 A method for preparing materials having penetration pores by employing hydrophilic surfactants of solid state
KR100855625B1 (en) 2003-02-25 2008-09-01 (주)콘테크 Water repellency agent for reinforced concrete construction, manufacturing process thereof, and waterproofing method using the same
CN104773966A (en) * 2014-02-09 2015-07-15 黄小仙 Preparation method of binding material mix

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