KR20100114988A - Method for manufacturing environment friendly construction materials and the construction materials compounds - Google Patents
Method for manufacturing environment friendly construction materials and the construction materials compounds Download PDFInfo
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- KR20100114988A KR20100114988A KR20090033458A KR20090033458A KR20100114988A KR 20100114988 A KR20100114988 A KR 20100114988A KR 20090033458 A KR20090033458 A KR 20090033458A KR 20090033458 A KR20090033458 A KR 20090033458A KR 20100114988 A KR20100114988 A KR 20100114988A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/08—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
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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
- C04B18/0418—Wet materials, e.g. slurries
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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
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
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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
- C04B28/04—Portland cements
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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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Abstract
Description
본 발명은 친환경 고화체의 제조방법 및 그 조성물에 관한 것으로, 더욱 상세하게는 점토, 뻘, 적토, 폐토사 등을 고화처리하여 건축 및 건설용 자재인 블록, 인조석 등으로 활용함으로써, 자연석을 채취하기 위한 자연환경의 훼손을 줄이고, 산업폐기물을 처리하여 재활용함으로써 경제적이며, 자연석을 반입하지 않아 물류비를 절감하도록 한 것이다.The present invention relates to a method for manufacturing an environment-friendly solidified body and its composition, and more specifically, to solidify the clay, soil, red soil, waste soil, etc. by using as a building and construction materials, blocks, artificial stone, etc. It is economical by reducing damage to the natural environment, recycling industrial wastes, and reducing logistics costs by not importing natural stones.
내륙에서 멀리 떨어진 간척지 등에서 매립공사를 하기 위해서는 상당량의 돌이 필요하다. 이를 위하여 내륙에서는 자연을 훼손하여 돌(자연석)을 생산하고, 이를 간척지로 이동한 후 토목공사에 사용함으로써 자연 훼손이 심각한 것은 물론, 돌을 이동시 물류비가 많이 들어 공사비가 증대되는 문제가 있어 왔다. A significant amount of stone is needed for reclamation work on reclaimed land, which is far from inland. To this end, inland production of stone (natural stone) by damaging nature, and moving it to reclaimed land, and then used in civil engineering works, natural damage is serious, as well as the cost of logistics costs increase when moving stones.
따라서 상기한 자연훼손을 최소화하기 위해 종래 점토, 뻘, 적토 등의 흙을 고화시키는 기술이 제안되었는 바, 상기한 고화방법으로는 점토, 뻘, 적토 등을 소성하는 방법, 굴삭기 등으로 시멘트계 고화재를 혼합하여 고화하는 방법, 레미콘식 으로 다량의 물을 첨가하여 일정한 틀에 성형하여 굳히는 방법 등이었다.Therefore, in order to minimize the above-mentioned natural damage, conventional techniques for solidifying soil such as clay, clay and red soil have been proposed. As the solidification method, a cement-based solidified material such as a method of firing clay, clay and red soil, an excavator, etc. And a method of mixing and solidifying, adding a large amount of water in a ready-mixed concrete method and molding a solid mold.
그러나 상기 소성방법은 고열을 필요로하게 되어 이산화탄소가 다량 배출됨에 따라 지구 온난화 등의 심각한 환경오염이 발생되는 문제점이 있고, 시멘트계 고화재를 사용하는 방법은 점토, 뻘, 적토 등은 미세한 미립자를 내포함으로 수분을 흡수하여 뭉쳐지는 성질로 인하여 시멘트와의 혼합이 어렵고 시멘트의 강알칼리성으로 인해 유해하며, 불균일한 배합으로 인한 고화체의 내구성에 문제점이 있었다. However, the firing method requires a high temperature, so that a large amount of carbon dioxide is emitted, causing serious environmental pollution such as global warming, and the method of using a cement-based solid material produces clay, clay, red soil, etc. It is difficult to mix with cement due to the nature of absorbing moisture by the inclusion and harmful due to the strong alkalinity of the cement, there was a problem in the durability of the solid due to uneven mixing.
아울러 다량의 물을 첨가하여 성형하여 굳히는 방법은 잉여수(剩餘水)의 체적만큼 고화체 내에 빈공극이 형성됨으로 물-시멘트 비 법칙에 의거 강도발현이 힘든 문제점이 있었다.In addition, the method of hardening by adding a large amount of water has a problem that the strength is hard to express based on the law of water-cement ratio because the voids are formed in the solid body by the volume of surplus water.
한편, 종래의 적토는 알루미나(Al2O3)를 생산하기 위하여 보오크사이트 원광석에 가성소다(NaOH)를 첨가하여 선광과정에서 발생되는 겔(Gel)상태의 찌꺼기 부산물로서, 가성소다가 함유되어 pH 11이상의 강알카리성 무기질 폐기물로서 원상태로는 주변생태계에 악영향을 끼치므로 해양투기(Dumping)하였으나, 런던협약에 의해 해양투기가 금기됨에따라 처리에 상당한 어렴움을 격고 있다.On the other hand, conventional red earth is a gel residue produced by beneficiation by adding caustic soda (NaOH) to the bauxite ore to produce alumina (Al 2 O 3 ), which contains caustic soda. Strong alkaline mineral wastes with a pH above 11 are dumped at its original state, because it adversely affects the surrounding ecosystem. However, due to the London Convention, sea dumping is contraindicated.
더욱이 고분말도의 겔상태이므로 건조하여 분말화하기전에는 효용가치가 없고, 상기 분말화하기 위해서는 막대한 비용이 소요되고 소진율이 낮아 그 처리가 어려운 실정이다.Moreover, since it is a gelled state of a high powder degree, there is no useful value before drying and powdering, and it is difficult to process because it requires enormous cost and low burnout rate.
또한 적토와 더불어 점토, 뻘, 폐토사 역시 산업폐기물로서 그 활용이 거의 이루어지지 않고 있는 실정이다. In addition to red soil, clay, clay, and waste soil are rarely utilized as industrial waste.
따라서 본 발명의 목적은 상기한 종래의 고화방법이 갖는 제반 문제점을 해소하기 위한 것으로, 점토, 뻘, 적토, 폐토사 등에 무기질첨가제를 균일하게 혼합하여 소수성을 띄도록 함으로써 완전 슬러리화가 가능하도록 하고, 고화재 및 고로슬래그 등이 균일하게 혼합된 혼합물을 응결 및 탈수하여 잉여수를 제거함으로써 물-시멘트비를 낮추어 강도가 우수하도록 하는 친환경 고화체의 제조방법 및 그 조성물을 제공하는 것이다.Therefore, an object of the present invention is to solve all the problems of the conventional solidification method, it is possible to fully slurry by mixing the inorganic additives such as clay, clay, red soil, waste soil, etc. to make hydrophobic, The present invention provides a method for producing an environment-friendly solidified body having a high strength by lowering the water-cement ratio by condensing and dehydrating a mixture of fire and blast furnace slag uniformly and removing excess water.
또한 간척지 등의 개발시 자연을 훼손시키면서 육상에서 돌 등을 반입하지 않고, 간척지 등의 현지에서 점토, 뻘, 적토, 폐토사 등을 간단하게 고화처리함으로써, 자연 훼손을 방지함은 물론, 물류비를 절감할 수 있도록 하는 것이다.In addition, it is possible to prevent natural damage and reduce logistics costs by simply solidifying the clay, soil, red soil, and waste soil from the land without damaging nature when developing reclaimed land. To do it.
상기한 목적을 달성하기 위한 본 발명의 친환경 고화체의 제조방법은, 토사에 무기질첨가제와 물의 혼합액을 투입하여 슬러리화하는 단계와, 상기 슬러리화된 토사에 고화재와 고로슬래그를 혼합하는 단계와, 상기 혼합된 혼합물이 응결되도록 응결시간을 부여하는 단계와, 상기 응결된 혼합물을 탈수하는 단계와, 상기 탈수된 혼합물을 성형하여 고형물을 만드는 단계와, 상기 성형된 고형물을 양생하는 단계를 포함하여 이루어지되, 상기 토사는 점토, 뻘, 적토 및 폐토사로 이루어진 군 중 선택된 1종 또는 2종 이상의 혼합재인 것을 특징으로 한다.Method for producing an environmentally friendly solid of the present invention for achieving the above object, the step of slurrying by adding a mixture of inorganic additives and water to the earth and sand, the step of mixing the solidified material and blast furnace slag in the slurried soil, Imparting a condensation time to condense the mixed mixture; dehydrating the condensed mixture; shaping the dehydrated mixture to form a solid; and curing the molded solid. Wherein, the soil is characterized in that one or two or more selected from the group consisting of clay, clay, red soil and waste soil.
그리고 그 조성물은 토사 45.49∼60.38중량%, 물 34.16∼36.25중량% 및 무기 질첨가제 0.06∼0.36중량%를 슬러리화하고, 이에 고화재 3.01∼18.19중량%, 고로슬래그 0.3∼1.8중량%를 추가 혼합하여 이루어지는 것을 특징으로 한다.The composition was slurried with 45.49 to 60.38 wt% of soil sand, 34.16 to 36.25 wt% water, and 0.06 to 0.36 wt% inorganic additive, and further mixed 3.01 to 18.19 wt% solidified material and 0.3 to 1.8 wt% blast furnace slag. Characterized in that made.
본 발명에 따르면 별도의 소성과정없이 점토, 뻘, 적토, 폐토사 등을 고화할 수 있게 되어 이산화탄소에 의한 지구온난화 등의 환경오염을 방지하고, 간척지를 개발함에 있어 자연을 훼손시켜 돌을 채움하지 않고 현장에서 간단하게 점토, 뻘, 적토, 폐토사 등을 이용하여 고화시켜 인조석으로서 활용함으써 자연훼손을 방지하고, 물류비를 절감하게 되는 등의 유용한 효과를 제공한다.According to the present invention, it is possible to solidify clay, sewage, red soil, waste soil, etc. without additional firing process, to prevent environmental pollution such as global warming by carbon dioxide, and to damage the nature in developing reclaimed land without filling stones By simply using clay, sand, red soil, and waste soil in the field to solidify and use it as artificial stone, it provides useful effects such as preventing natural damage and reducing logistics costs.
이하 본 발명을 도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
본 발명의 친환경 고화체란 블록, 패널, 타일, 인조석, 칼라인조석 등을 모두 포함하는 것으로, 그 형태나 활용을 제한하지 않는다.Eco-friendly solidified body of the present invention includes all blocks, panels, tiles, artificial stone, color artificial stone, and the like, without restricting its form or application.
도 1은 본 발명에 따른 친환경 고화체의 제조공정도로서, 토사, 무기질첨가제 및 물 혼합, 슬러리화(S1), 고화재 및 고로슬래그 혼합(S2), 응결시간 부여(S3), 탈수(S4), 성형, 고형물 제조(S5), 양생(S6)으로 이루어진다.1 is a manufacturing process diagram of the environment-friendly solidified body according to the present invention, earth and sand, mineral additives and water mixing, slurrying (S1), solidified material and blast furnace slag mixing (S2), condensation time given (S3), dehydration (S4), molding , Solids production (S5), curing (S6).
먼저 토사에 무기질첨가제의 희석액, 즉 무기질첨가제와 물의 혼합액을 투입하여 분쇄교반함으로써, 소수성(疎水性)의 토사로 슬러리화(S1) 한다. 이때 상기 토사란 점토, 뻘, 적토 및 폐토사로 이루어진 군 중 선택된 1종 또는 2종 이상의 혼합재를 사용하며, 바람직하게는 점토와 뻘의 혼합재 또는 적토와 폐토사가 1:1∼1:1.5 중량비로 혼합되어 이루어진 것을 이용한다. 이때 상기 적토와 폐토사를 이용할 경우, 적토로 인해 칼라 인조석으로의 활용이 가능하게 된다.First, a dilution liquid of the inorganic additive, that is, a mixed liquid of the inorganic additive and water, is added to the soil, and then pulverized and stirred to slurry the hydrophobic soil (S1). At this time, the earth and sand using one or two or more selected materials selected from the group consisting of clay, soil, red soil and waste earth, preferably a mixture of clay and soil or red soil and waste soil mixed in a 1: 1 to 1: 1.5 weight ratio Use what has been done. In this case, when using the red soil and the waste soil, it becomes possible to utilize the color artificial stone due to the red soil.
이때 무기질첨가제를 단독으로 투입하지 않고 물과 혼합하여 혼합액으로서 투입하는 데, 그 이유는 흙입자 사이에 소량의 무기질첨가제가 고르게 침투되도록 하기 위함이다. In this case, the inorganic additive is mixed with water instead of alone, and mixed as water, so that a small amount of the inorganic additive is evenly penetrated between the soil particles.
상기 무기질첨가제로는 알카리금속이나 토금속으로 이루어진 것을 사용하는 것이 바람직한 바, 더욱 바람직하게는 황산알루미늄 4∼6중량%, 리그닌술폰산나트륨 4∼6중량%, 리그닌술폰산마그네슘 7∼9중량%, 트리포리인산나트륨 0.5∼2중량%, 염화칼륨 18∼23중량%, 염화칼슘 10∼13중량%, 염화마그네슘 21∼28중량%, 염화나트륨 27∼35중량%, 탄산칼슘 0.01∼0.06중량% 및 3% 농도의 암모니아수 0.3∼0.6중량%를 포함하여 이루어지는 것을 사용한다.As the inorganic additive, it is preferable to use an alkali metal or an earth metal, and more preferably 4 to 6% by weight of aluminum sulfate, 4 to 6% by weight of sodium lignin sulfonate, 7 to 9% by weight of lignin sulfonate, and tripori 0.5-2% sodium phosphate, 18-23% potassium chloride, 10-13% calcium chloride, 21-28% magnesium chloride, 27-35% sodium chloride, 0.01-0.06% calcium carbonate and 3% aqueous ammonia What consists of 0.3-0.6 weight% is used.
상기 무기질첨가제는 상기 첨가제는 리그린술폰산나트륨과 리그닌술폰산마그네슘, 황산알루미늄 등의 금속이온이 흙입자에 강한 대전을 띤 흡착수에 용해된 후민산프로톤의 이온교환으로 인해 흡착수의 전하를 낮춤으로써, 흡착수를 밀어 내는 소수성을 띠며 토양의 단립화가 빠르게 진행되어 점성토의 사질화로 토질을 개량하는 것이다. 상기 무기질첨가제는 본 출원인이 선 발명한 등록특허 제10-0775360호에 충분히 공지되어 있는 바, 이에 대한 상세한 설명은 생략한다. The inorganic additive is an additive of the adsorbed water by lowering the charge of the adsorbed water due to ion exchange of humic acid protons dissolved in adsorbed water in which metal ions such as sodium lignin sulfonate, magnesium lignin sulfonate and aluminum sulfate are strongly charged to soil particles. It has hydrophobicity that pushes away the soil, and the soil is rapidly becoming granulated, and the soil is improved by sanding of the clay. The inorganic additive is well known in the Patent No. 10-0775360 invented by the present applicant, a detailed description thereof will be omitted.
다음으로, 상기 슬러리화된 토사에 고화재와 고로슬래그를 혼합(S2)하여 균일하게 되도록 한다.Next, the solidified material and the blast furnace slag in the slurryed soil sand (S2) to be uniform.
상기 고화재로는 종래와 동일하게 일반포틀랜드 시멘트를 사용하며, 상기 고화재와 함께 잠재 수경성인 고로슬래그를 혼합하여 고화재의 사용량을 줄일 수 있도록 한다. 이때 상기 고로슬래그의 분말도는 6500㎠/g 이상인 것을 사용하는 것이 바람직한 바, 이는 고로슬래그의 분말도가 6500㎠/g 이상이어야만 균질한 혼합이 용이하고 강도발현 역시 우수하기 때문이나 이를 반드시 제한하는 것은 아니다.As the solidified material, a general portland cement is used as in the related art, and the amount of the solidified material can be reduced by mixing the latent hydraulic blast furnace slag with the solidified material. At this time, it is preferable to use the blast furnace slag having a powder degree of 6500 cm 2 / g or more, because the blast furnace slag has a powder degree of 6500 cm 2 / g or more, since homogeneous mixing is easy and strength is also excellent. It is not.
고화재와 고로슬래그의 혼합(S2)이 완료되면, 상기 균일하게 혼합된 슬러리 상태의 혼합물이 응결되도록 응결시간을 부여(S3)한다. 이때 상기 응결시간은 10∼110분 동안 부여하는 것이 바람직한 바, 이는 고화재인 일반포틀랜드 시멘트가 수화반응하며 응결되도록 하기 위한 시간이다. 상기 응결시간은 계절에 따라 달라지는 데, 상온에서는 약 30분 정도의 시간이면 시멘트가 수화반응하여 응결되지만 온도가 상승되면, 즉 하절기에는 수화반응이 촉진되어 응결시간이 단축되고, 온도가 하강되면, 즉 동절기에는 수화반응이 늦어짐으로 응결시간이 길어지게 되는 것이다. 따라서 고온인 하절기에는 10분의 응결시간을 부여하고 동절기에는 110분을 부여하게 되는 바, 응결시간이 10분 보다 짧을 경우 이온화물질의 용출이 많아지고 응결시간이 110분이 초과되면 후공정인 탈수공정시 경화단계에서 흩트러져 강도저하의 원인이 될 수 있기 때문이다.When the mixture (S2) of the solidified material and the blast furnace slag is completed, a condensation time is given to condense the mixture of the uniformly mixed slurry state (S3). At this time, the setting time is preferably given for 10 to 110 minutes, which is a time for allowing the general Portland cement, which is a solid material, to hydrate during condensation reaction. The condensation time varies depending on the season, at about 30 minutes at room temperature, the cement is hydrated by condensation, but when the temperature is increased, that is, during the summer, the hydration reaction is accelerated to shorten the condensation time, and the temperature is lowered, In other words, the condensation time is longer because the hydration reaction is late in winter. Therefore, condensation time of 10 minutes is given in summer during high temperature and 110 minutes in winter. If condensation time is shorter than 10 minutes, elution of ionizing material increases and condensation time is longer than 110 minutes. This is because it may disperse in the curing stage and cause a decrease in strength.
응결시간이 경과(S3)하면, 상기 응결된 혼합물을 압송펌프을 이용하여 원심탈수기로 투입하여 탈수함으로써 잉여수를 제거(S4)한다. 상기 잉여수를 제거하는 이유는 잉여수가 제거됨에 따라 물-시멘트의 비를 낮춰 혼합물의 최종함수비를 15∼25중량%로 맞출 수 있게 되어, 후공정인 성형공정 시 고형물 내에 빈공극이 형성되지 않도록 하기 위함이다. 이때 상기 최종함수비가 15중량% 미만이 되려면 탈수시간이 너무 길어져 경제적이지 못하고 25중량%를 초과하면 후 공정인 성형시 쉽게 토출되어 공극이 남게되어 강도저하의 원인이 될 수 있으므로, 최종함수비를 15∼25중량%로 한다.When the condensation time elapses (S3), the condensed mixture is introduced into a centrifugal dehydrator using a pressure pump to dehydrate the condensed water (S4). The reason for removing the surplus water is to reduce the ratio of water-cement as the surplus water is removed so that the final water content ratio of the mixture can be adjusted to 15 to 25% by weight, so that no voids are formed in the solid during the subsequent molding process. To do this. At this time, if the final function ratio is less than 15% by weight, the dehydration time is too long, so it is not economical, and if it exceeds 25% by weight, the final function ratio is easily discharged during molding, which may leave voids and cause a decrease in strength. Let it be -25 weight%.
아울러 상기 탈수된 물, 즉 잉여수는 상기 슬러리화 단계(S1) 시 무기질첨가제와 혼합되는 물로서 재이용함으로써, 자원을 절약하고 폐수의 발생을 최소로 한다.In addition, the dehydrated water, that is, excess water is reused as water mixed with the inorganic additive in the slurrying step (S1), thereby saving resources and minimizing the generation of waste water.
탈수가 완료(S4)되면, 상기 탈수된 혼합물을 성형하여 고형물을 제조(S5)한다.When dehydration is completed (S4), the dehydrated mixture is molded to prepare a solid (S5).
이때 상기 성형방법으로는 고압의 압출기를 이용하여 압출성형하고 절단하는 바, 이는 탈수된 혼합물의 고화시 압출을 통해 체적을 최대한 줄임으로써, 고형물 내의 공극을 줄이기 위함이다. In this case, the molding method is extrusion molding and cutting using a high pressure extruder, in order to reduce voids in the solid by reducing the volume as much as possible through extrusion during solidification of the dehydrated mixture.
그리고 상기 압출성형된 성형물의 종류는 제한하지 않으나, 블록, 패널, 인조석, 칼라인조석, 타일 등으로 성형될 수 있다.The type of the extruded molding is not limited, but may be molded into blocks, panels, artificial stones, color artificial stones, tiles, and the like.
아울러, 필요에 따라 상기 압출성형된 고형물을 원형 회전통에 투입하여 회 전(S5')시킬 수도 있는 바, 회전을 통해 고형물의 각진 모서리를 제거하여 둥글게 처리하기 위함이다.In addition, if necessary, the extruded solid may be put into a circular rotary tube and rotated (S5 ′). This is to remove the angled edges of the solid through rotation to round the process.
상기와 같이 성형이 완료(S5)되면, 상기 성형된 고형물을 양생(S6)한다. 상기 양생공정은 통상의 시멘트 양생과 동일한 형태로 한다.When the molding is completed as described above (S5), curing the molded solid (S6). The curing step is the same as the usual cement curing.
상기 양생(S6)이 완료되면, 본 발명에 따라 제조된 고화체를 건설 및 건축용 자재로서 사용할 수 있게 되는 것으로, 그 사용처를 제한하지 않는다.When the curing (S6) is completed, it is possible to use the solidified body manufactured according to the present invention as a construction and building material, it does not limit its use.
한편, 본 발명에서는 토사, 물, 무기질첨가제, 고화재 및 고로슬래그가 혼합되는 바, 그 혼합비는 혼합물 100중량%를 기준으로, 토사 45.49～60.38중량%, 물 34.16～36.25중량% 및 무기질첨가제 0.06～0.36중량%를 슬러리화하고, 이에 고화재 3.01～18.19중량%, 고로슬래그 0.3～1.8중량%가 혼합되는 것이 바람직하다. Meanwhile, in the present invention, the earth and sand, water, inorganic additives, solidified material and blast furnace slag are mixed, and the mixing ratio is 45.49 to 60.38 weight percent of soil, 34.16 to 36.25 weight percent, and 0.06 inorganic additives based on 100 weight percent of the mixture. It is preferable that slurry of 0.36 weight% is mixed, and 3.01-18.19 weight% of solidified material and 0.3-1.8 weight% of blast furnace slag are mixed with it.
상기와 같이 혼합비를 제한하는 이유는 상기 물의 혼합비가 34.1중량% 미만이면 토사의 균질한 혼합이 어려워지고 36.25중량%를 초과하면 필요이상으로 과량이 되어 후공정인 응결 및 탈수가 길어어지게 되어 경제적이지 못하며, 상기 무기질첨가제의 혼합비가 0.06중량% 미만이 되면 소량이 되어 토질의 개선효과가 미미하게 되고 0.36중량%를 초과하더라도 추가적인 토질개선효과가 없기 때문이다. The reason for limiting the mixing ratio as described above is that if the mixing ratio of water is less than 34.1% by weight, the homogeneous mixing of the soil becomes difficult. This is because, when the mixing ratio of the inorganic additive is less than 0.06% by weight is a small amount, the improvement effect of the soil is insignificant, and even if it exceeds 0.36% by weight, there is no additional soil improvement effect.
또한 상기 고화재가 3.01중량% 미만이되면 사용량이 상대적으로 너무 적어 강도발현이 좋지 못하고 18.19중량%를 초과하면 시멘트의 강한 알칼리성으로 인해 토양의 염기성화가 촉진되어 환경친화성의 취지에 벗어나며 시멘트의 백화현상이 일어날 수 있기 때문이고, 상기 고로슬래그의 혼합비가 0.3중량% 미만이면 그 효과가 미미하게 되고 1.8중량%를 초과하면 후기양생으로 인한 크랙이 발생할수 있기 때문이다.In addition, when the solidified material is less than 3.01% by weight, the amount of use is relatively small, so that the strength expression is not good. When the solidified material exceeds 18.19% by weight, the basicity of the soil is promoted due to the strong alkalinity of the cement, which deviates from the purpose of environmental friendliness. This may occur, and if the mixing ratio of the blast furnace slag is less than 0.3% by weight, the effect is negligible, and if it exceeds 1.8% by weight, cracks may occur due to late curing.
즉, 본 발명에 따른 고화체의 조성물은, 토사 45.49∼60.38중량%, 물 34.16∼36.25중량% 및 무기질첨가제 0.06∼0.36중량%를 슬러리화하고, 이에 고화재 3.01∼18.19중량%, 고로슬래그 0.3∼1.8중량%를 혼합하여 이루어지는 것이다.That is, the composition of the solidified body according to the present invention is slurried 45.49 to 60.38% by weight of soil, 34.16 to 36.25% by weight of water and 0.06 to 0.36% by weight of inorganic additives, 3.03 to 18.19% by weight of solidified material, 0.3 to blast furnace slag It is made by mixing 1.8% by weight.
이하 실시예를 통해 겉모양의 균열여부 및 압축강도에 대해 실험하였다.Through the following examples were tested for the appearance of cracks and compressive strength.
(실시예1)Example 1
점토 25kg, 뻘 25kg에 물 35kg과 무기질첨가제 0.3kg을 혼합한 혼합액을 투입하여 슬러리화 한 후, 이에 고화재 15kg, 고로슬래그 1.5kg을 혼합한 후, 30분간 응결하고 탈수하여 최종 함수비가 20중량%가 되도록 잉여수를 제거한 후, 이를 사출성형하고 절단하였으며, 이를 상온에서 7일간 양생하여 시험공시체를 제조하였다.25 kg of clay, 25 kg of water, 35 kg of water and 0.3 kg of mineral additives were mixed and slurried. After mixing 15 kg of solidified fire and 1.5 kg of blast furnace slag, the final water content was 20 weight After removing the excess water to the%, it was injection molded and cut, it was cured for 7 days at room temperature to prepare a test specimen.
이때 상기 고화재로는 일반포틀랜드 시멘트를 사용하였고 고로슬래그의 분말도는 6500㎠/g의 것을 사용하였으며, 무기질첨가제로는 황산알루미늄 5중량%, 리그닌술폰산나트륨 5중량%, 리그닌술폰산마그네슘 8중량%, 트리포리인산나트륨 1중량%, 염화칼륨 20중량%, 염화칼슘 10중량%, 염화마그네슘 23.45중량%, 염화나트륨 27중량%, 탄산칼슘 0.05중량% 및 3% 농도의 암모니아수 0.5중량%로 되는 것을 사용하 였다.In this case, as the solidified material, general portland cement was used, and the blast furnace slag had a powder degree of 6500 cm 2 / g. As the inorganic additive, aluminum sulfate 5% by weight, lignin sulfonate 5% by weight, and lignin sulfonate 8% by weight , 1% by weight of sodium tripolyphosphate, 20% by weight of potassium chloride, 10% by weight of calcium chloride, 23.45% by weight of magnesium chloride, 27% by weight of sodium chloride, 0.05% by weight of calcium carbonate and 0.5% by weight of ammonia at 3% concentration were used. .
(실시예2)Example 2
실시예1과 동일하게 제조하되, 점토 25kg, 뻘 25kg을 대신하여 적토 25kg과 폐토사 25kg을 사용하였다.Prepared in the same manner as in Example 1, instead of 25kg clay, 25kg 적 25kg red clay and 25kg waste soil was used.
(비교예1, 2)(Comparative Examples 1 and 2)
각각 실시예1, 2와 동일하게 제조하되, 탈수공정을 생략하고 압출성형이 아닌 몰드에 부어 성형하는 방법으로 기준공시체를 제조하였다. Each prepared in the same manner as in Examples 1 and 2, but the standard specimen was prepared by omitting the dehydration process and pouring into a mold rather than extrusion.
상기 실시예1, 2 및 비교예1, 2의 겉모양, 압축강도를 측정하여 그 결과를 하기 표 1에 나타내었다.Examples 1 and 2 and Comparative Examples 1 and 2, the appearance and compressive strength were measured and the results are shown in Table 1 below.
공시체의 겉모양
및 압축강도
After wet
Appearance of specimen
And compressive strength
Example 1
Example 2
Comparative Example 1
Comparative Example 2
상기 표 1의 결과에서 알 수 있는 바와 같이, 실시예들이 비교예들에 비하여 평균 300% 이상의 놀라운 강도 발현을 나타냄을 확인할 수 있었다.As can be seen from the results of Table 1, it can be seen that the examples exhibited surprising intensity expression of at least 300% compared to the comparative examples.
이상의 설명은 본 특허의 기술 사상을 예시적으로 설명한 것에 불과한 것으로서, 본 특허가 속하는 기술 분야에서 통상의 지식을 가진 자라면 본 특허의 본질적인 특성에서 벗어나지 않는 범위에서 다양한 수정 및 변형이 가능할 것이다. The above description is merely illustrative of the technical spirit of the present patent, and those skilled in the art to which the present patent belongs may have various modifications and variations without departing from the essential characteristics of the present patent.
또한, 본 특허에 개시된 실시예들은 본 특허의 기술 사상을 한정하기 위한 것이 아니라 설명하기 위한 것이고, 이러한 실시예에 의하여 본 특허의 기술 사상의 범위가 한정되는 것은 아니다.In addition, the embodiments disclosed in the present patent are not intended to limit the technical spirit of the present patent but to describe the present invention, and the scope of the technical spirit of the present patent is not limited by these embodiments.
도 1은 본 발명에 따른 친환경 고화체의 제조 공정도.1 is a manufacturing process of the eco-friendly solidified body according to the present invention.
Claims (13)
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| KR101328302B1 (en) * | 2011-11-01 | 2013-11-14 | 이윤석 | A solidifying agent for black mud and a process for solidifying black mud |
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