KR100313599B1 - Latex modified concrete composition for bridge surface - Google Patents
Latex modified concrete composition for bridge surface Download PDFInfo
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- KR100313599B1 KR100313599B1 KR1020000015156A KR20000015156A KR100313599B1 KR 100313599 B1 KR100313599 B1 KR 100313599B1 KR 1020000015156 A KR1020000015156 A KR 1020000015156A KR 20000015156 A KR20000015156 A KR 20000015156A KR 100313599 B1 KR100313599 B1 KR 100313599B1
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- bridge
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- concrete composition
- latex
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- 239000004567 concrete Substances 0.000 title abstract description 40
- 239000000203 mixture Substances 0.000 title abstract description 25
- 229920000126 latex Polymers 0.000 title abstract description 10
- 239000004816 latex Substances 0.000 title abstract description 9
- 238000000034 method Methods 0.000 abstract description 12
- 239000004568 cement Substances 0.000 abstract description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract description 8
- 239000000839 emulsion Substances 0.000 abstract description 8
- 229920001577 copolymer Polymers 0.000 abstract description 6
- 239000004576 sand Substances 0.000 abstract description 6
- 229920006174 synthetic rubber latex Polymers 0.000 abstract description 6
- 238000004132 cross linking Methods 0.000 abstract description 5
- 150000003839 salts Chemical class 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000011049 filling Methods 0.000 abstract description 3
- 238000004806 packaging method and process Methods 0.000 abstract description 3
- 230000035699 permeability Effects 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 238000010276 construction Methods 0.000 description 8
- 230000032683 aging Effects 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229920006243 acrylic copolymer Polymers 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- -1 dirt Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000006166 lysate Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011371 regular concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/06—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising selenium or tellurium in uncombined form other than as impurities in semiconductor bodies of other materials
- H01L21/14—Treatment of the complete device, e.g. by electroforming to form a barrier
- H01L21/145—Ageing
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/831—Aging
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Gerontology & Geriatric Medicine (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Health & Medical Sciences (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Road Paving Structures (AREA)
Abstract
본 발명은 교면 포장용 개질 콘크리트 조성물 및 그를 이용한 교면 포장방법에 관한 것으로, 합성고무계 라텍스(고형분함량 45%) 17∼22(w/w%), 시멘트 11∼14(w/w%), 모래 35∼40(w/w%), 자갈 25∼27(w/w%)로 구성되는 합성고무계 라텍스를 이용한 교면포장용 개질 콘크리트조성물에 있어서, 상온 경화성 아크릴계 유화공중합물 3∼5(w/w%)을 더 첨가함을 특징으로 하는 불투수성 교면 포장용 라텍스 혼합 개질 콘크리트조성물은 라텍스의 잠재수경성 반응에 의한 GEL의 생성으로 시멘트 페이스트의 공극을 충진시킴으로써 방수효과가 우수하므로 교량 슬라브의 교면방수를 하지 않아도 되고, 고밀성을 유지할 수 있어서 각종 염해물의 침투성을 감소시키고, 부착력이 우수하여 신구 콘크리트가 일체화되어 교량의 공용기간 중 유지보수가 필요 없는 특징이 있다.The present invention relates to a modified concrete composition for cross-linking paving and a cross-linking paving method using the same, synthetic rubber latex (solid content 45%) 17-22 (w / w%), cement 11-14 (w / w%), sand 35 In the modified concrete composition for cross-packaging using synthetic rubber latex composed of -40 (w / w%) and gravel 25-27 (w / w%), at room temperature curable acrylic emulsion copolymer 3 to 5 (w / w%) The latex mixed modified concrete composition for impervious bridge pavement pavement, which is characterized in that the addition of more, is waterproof by filling the pores of the cement paste by the generation of GEL by the latent hydraulic reaction of the latex, so that the bridge slabs do not need to cross-waterproof, It can maintain the high density, reduce the permeability of various salts, and excellent adhesion, the old and new concrete is integrated, there is a feature that does not require maintenance during the common period of the bridge.
Description
본 발명은 교면 포장용 개질 콘크리트 조성물 및 그를 이용한 교면 포장방법에 관한 것이다. 더욱 상세하게는, 합성고무계 라텍스(고형분함량 45%) 17∼22(w/w%), 시멘트 11∼14(w/w%), 모래 35∼40(w/w%), 자갈 25∼27(w/w%) 나머지 3∼5(w/w%)를 상온 경화성 아크릴계 유화공중합물로 구성된 조성물을 이용하여 신설교량 및 기존교량의 교면 포장방법에 관한 것이다.The present invention relates to a modified concrete composition for bridge pavement and a bridge pavement method using the same. More specifically, synthetic rubber latex (solid content 45%) 17-22 (w / w%), cement 11-14 (w / w%), sand 35-40 (w / w%), gravel 25-27 (w / w%) The remaining 3 to 5 (w / w%) relates to the bridge construction method of new bridges and existing bridges using a composition composed of a room temperature-curable acrylic emulsion copolymer.
종래, 교량 구조물을 보수하는 방법으로는 아스콘 포장방법 및 콘크리트 포장방법이 공지·공용되어 있다. 아스콘 포장방법은 소성변형, 열화현상 등으로 인해 소요의 주행성을 확보하기 위해서 주기적으로 재포장을 해야하기 때문에 이로 인한 유지보수비가 과다투입되고 교통장애의 요인이 되며, 교량상판의 노후화 징후 파악이 곤란하고, 방수층의 시공이 불량한 경우 상판에 염화물이 침투하여 철근이 부식되거나 콘크리트가 열화하는 현상이 발생하여 교량의 공용성을 단축시키는 문제점이 대두되어 왔다.Conventionally, ascon paving and concrete paving are known and commonly used as a method of repairing bridge structures. Ascon packing method needs to be repacked periodically to secure necessary driving due to plastic deformation, deterioration, etc., resulting in over-injection of maintenance costs and traffic obstacles, and it is difficult to identify signs of aging on bridge decks. In addition, when the construction of the waterproof layer is poor, chloride penetrates into the upper plate to corrode the steel or deteriorate concrete, thereby shortening the commonness of the bridge.
한편, 보통 콘크리트 포장방법에 따르면, 교량의 바닥판 콘크리트와 동시 타설로 시공성은 우수하나 소요의 평탄성을 확보하기가 어렵고 콘크리트의 투기성, 투수성에 따른 염화물의 침투로 철근이 부식되고 콘크리트의 균열이 발생되어 교면의 열화현상이 발생하여 확실한 방수가 곤란하다는 단점이 있다.On the other hand, according to the concrete pavement method, it is excellent in workability by simultaneous pouring with the floor slab concrete of the bridge, but it is difficult to secure the flatness required. There is a disadvantage that deterioration of the bridge occurs, so that the waterproof is difficult.
교면 포장은 그 수명이 통상 약 4년이므로 4년마다 재포장을 실시할 때 이에 따른 보수공사비, 교통처리 문제가 수반된다. 또한 교면 포장은 교량을 보호하는 지붕의 역할을 수행하여야 하므로 누수를 방지하여 주형의 수명을 향상시켜야 한다는 전제조건이 필요하다. 현재 국내에서 시공하는 교면 포장공법은 포장체와 바닥 콘크리트면 사이에 방수층 시공이 필요하며 그에 따른 노무비의 증가를 가져오고 있으며, 흔히 적용해 온 아스콘 포장은 재료의 물성이 낮은 강도값과 저밀도 값으로 인하여 불법과중 차량이나 교통량 증대로 인하여 반복적인 반복하중을 받는 경우 교면 포장에 소성변형, debonding, spalling, shoving을 일으켜 포장재인 아스팔트가 이질재인 콘크리트에서 떨어져 들뜸현상이 발생되고 그에 따라 그 균열 사이로 빗물, 공기, 염화물 이온이 침투하여 콘크리트 상판을 열화시키며 철근의 부식을 발생시켜 교량의 상판은 급진적인 노화를 초래하고 결국 교량의 내구성을 현저히 저하시켜 왔다.Bridges are usually about four years in life, so repacking every four years involves maintenance costs and traffic handling. In addition, the bridge pavement has to serve as a roof to protect the bridge, so it is necessary to prevent leakage and improve the life of the mold. Currently, the bridge paving method in Korea requires the installation of a waterproof layer between the package and the concrete floor, resulting in an increase in labor costs. The commonly used ascon pavement has low strength and low density. Due to illegal heavy vehicle or repeated traffic load due to increased traffic volume, plastic deformation, debonding, spalling, shoving on the pavement paving causes asphalt to fall off from the concrete, which causes the pavement to fall off, resulting in rainwater between the cracks. In addition, air and chloride ions penetrate, deteriorate concrete decks and cause corrosion of reinforcing bars, resulting in radical aging and ultimately deteriorating bridge durability.
한편, 콘크리트 포장은 그 동안 우리나라 중부 및 호남고속도로 일부 구간에서 적용한 것으로 바닥판 콘크리트와 동시에 타설하는 것으로써 시공성이 양호하나 교면의 평탄성 확보가 어려워 승차감이 불량하고 타설 후 습도, 온도 등 환경조건의 변화와 반복하중으로 인하여 안정성이 떨어져 골재와 시멘트 페이스트 사이의 경계면에서 균열이 발생하기 때문에 완벽한 방수층 설치가 불가능하고 이러한 균열층에 빗물 및 염화물의 침투에 의하여 역시 교량의 노후화가 촉진된다.On the other hand, concrete pavement has been applied in some sections of Korea's central and Honam expressways, and it is good to be constructed by placing concrete at the same time as floor slab concrete, but it is difficult to secure flatness of bridges, resulting in poor riding comfort and changes in environmental conditions such as humidity and temperature Because of the poor stability due to the cyclic loading and cracks at the interface between the aggregate and the cement paste, it is impossible to install a perfect waterproof layer and the aging of the bridge is also promoted by the penetration of rainwater and chloride into the crack layer.
본 발명은 상기 언급한 바와 같이, 아스콘 포장공법이나 콘크리트 포장공법의 단점을 개선하기 위하여 착안된 것으로 부착력이 우수하고 균열현상 및 방수효과가 뛰어난 개질 콘크리트 조성물을 제공하며, 이를 사용한 교면 포장방법을 제공하는데 그 목적이 있다.As described above, the present invention was conceived to improve the disadvantages of the asphalt concrete paving method or concrete paving method, and provides a modified concrete composition having excellent adhesion and excellent cracking and waterproofing effects, and providing a cross-section paving method using the same. Its purpose is to.
본 발명의 상기 목적은 합성고무계 라텍스(Latex)에 시멘트, 모래, 자갈 및 상온경화성 아크릴계 공중합물을 일정비율 혼합하여 된 개질 콘크리트 조성물을 제조하고 이를 사용하여 교면 포장을 수행함으로써 달성하였다.The object of the present invention was achieved by preparing a modified concrete composition made by mixing a certain ratio of cement, sand, gravel and room temperature-curable acrylic copolymer in a synthetic rubber latex (Latex), and using the same to perform the bridge pavement.
도 1은 본 발명 조성물과 보통 콘크리트를 사용하여 염수침투효과를 실험한 결과이다.1 is a result of the salt infiltration effect using the composition of the present invention and ordinary concrete.
도 2는 본 발명 조성물을 이용한 교량표면 포장방법의 개략적인 공정도이다.Figure 2 is a schematic process diagram of the bridge surface packaging method using the present invention composition.
본 발명은 교면 포장용 개질 콘크리트 조성물을 제조하는 단계와 이를 이용하여 교면 포장하는 단계와 이를 비교 평가하는 단계로 구성된다.The present invention comprises a step of preparing a modified concrete composition for cross-linking pavement and the step of cross-linking by using it and the step of comparing and evaluating it.
본 발명 개질 콘크리트 조성물은 합성고무계 라텍스(고형분함량 45%) , 17∼22(w/w%), 시멘트 11∼14(w/w%), 모래 35∼40(w/w%), 자갈 25∼27(w/w%)에 상온 경화성아크릴계 유화공중합물 3∼5(w/w%)를 더 포함한다. 상기 조성물의 가장 바람직한 조성비(부피비)는 전체 100에 대하여 물 13.5%, 라텍스 6.0%, 시멘트 12.5%, 모래 37.5%, 자갈 26.0%, 상온 경화성 아크릴계 유화공중합물 4.5%이다.The modified concrete composition of the present invention is synthetic rubber latex (solid content 45%), 17-22 (w / w%), cement 11-14 (w / w%), sand 35-40 (w / w%), gravel 25 It further contains 3-5 (w / w%) of normal temperature curable acrylic emulsion copolymer in -27 (w / w%). The most preferable composition ratio (volume ratio) of the composition is water 13.5%, latex 6.0%, cement 12.5%, sand 37.5%, gravel 26.0%, room temperature curable acrylic emulsion copolymer 4.5% with respect to the total 100.
라텍스(Latex)는 고무나무로부터 얻어지는 자연제품을 말하나 현재 공급되고 있는 것들은 55%의 물에 45%의 합성고무 polymer를 첨가하여 제조된 것이다. 이와 같이, 라텍스를 시멘트나 모르타르에 첨가하였을 때는 유동성이 증가하고 골재에 점착성이 향상되어 미세균열의 충진효과가 현저히 상승될 뿐만 아니라, 이와 같은 충진효과에 의하여 수분의 침투성이 감소하여 방수효과가 증대된다.Latex is a natural product obtained from rubber trees, but the ones currently supplied are made by adding 45% synthetic rubber polymer to 55% water. As such, when latex is added to cement or mortar, the fluidity is increased and the adhesion to aggregate is improved, and the filling effect of the microcracks is significantly increased, and the penetration effect of water is decreased by the filling effect, thereby increasing the waterproofing effect. do.
한편, 이와는 별도로 상온 경화성 아크릴계 유화공중합물을 혼합시킴으로써 라텍스 고무중합물질의 점착성을 다소 유연하게 하여 유동성을 높이고 따라서 분산성을 아울러 현저하게 향상시켜 시공시 작업성을 개선시킬 뿐만 아니라, 구성재료의 분리 저항성을 향상시켜 개질콘크리트 구조물의 노면 및 내부구조 안정화에 기여하는 특징이 있다.On the other hand, by mixing the room temperature curable acrylic emulsion copolymer separately, the adhesiveness of the latex rubber polymer is somewhat flexible, thereby increasing the fluidity and thus improving the dispersibility and remarkably improving the workability during construction as well as the separation of the constituent materials. It is characterized by contributing to stabilizing the road surface and internal structure of the modified concrete structure by improving the resistance.
실시예 1 : 본 발명 개질 콘크리트 조성물과 보통 콘크리트의 비교Example 1 Comparison of the Invention Modified Concrete Composition with Regular Concrete
본 발명에 있어서, 점착제인 합성고무계 라텍스와 분산제인 상온 경화성 아크릴계 유화공중합물을 주요성분으로 하여 전체 조성물을 100으로 하여 라텍스 6.0%, 물 13.5%, 시멘트 12.5%, 모래 37.5%, 자갈 26.0%, 상온 경화성 아크릴계 유화공증화합물 4.5%로 조성된 개질 콘크리트 조성물을 보통 콘크리트에 대한 역학적 특성을 경시적으로 비교하였다. 비교결과는 표 1과 같았다.In the present invention, the total composition is 100% by using the synthetic rubber latex as an adhesive and the room temperature-curable acrylic emulsion copolymer as a dispersant as a main component, and latex 6.0%, water 13.5%, cement 12.5%, sand 37.5%, gravel 26.0%, The modified concrete composition composed of 4.5% of room temperature curable acrylic emulsifying compound was compared with time for the mechanical properties of ordinary concrete. Comparative results are shown in Table 1.
실험결과, 압축강도는 큰 차이가 없으나, 휨 강도와 shear bond에 있어서 뛰어난 효과가 있으며 따라서, 본 발명 제품은 교량의 overlay와 같이 압축력 보다는 휨이나 전단, 부착력이 요구되는 곳에 적합함을 알 수 있어 교면의 내구성을 증대시키고 재포장의 필요가 없으며 유지관리비를 절약할 수 있는 효과가 기대된다.As a result of the experiment, the compressive strength does not have a big difference, but it has an excellent effect on the flexural strength and the shear bond. Therefore, it can be seen that the product of the present invention is suitable for the place where bending, shearing, and adhesive force are required rather than compressive force, such as overlay of bridges. It is expected to increase the durability of the bridge, eliminate the need for repackaging, and reduce the maintenance cost.
실험예 2 : 본 발명 조성물의 염수침투효과 실험Experimental Example 2: Salt infiltration effect experiment of the present invention composition
상기 실시예 1의 조성물을 공시재료로 90일간 염소침투실험을 수행한 결과, 라텍스와 아크릴계 유화공중화합물에 의하여 상기 물질의 침투성을 급격히 저하시켰다. 따라서, 본 발명 제품은 제설염(除雪鹽)의 침투에 의한 바닥판 철근의 부식방지에 매우 효과적인 것으로 나타났다.As a result of performing a chlorine penetration test for 90 days using the composition of Example 1 as a test material, the permeability of the material was drastically reduced by latex and acrylic emulsion emulsion. Therefore, the product of the present invention was found to be very effective in preventing corrosion of the bottom plate reinforcement by the penetration of snow salt.
실험표본은 직경 3인치, 길이 2인치의 실린더형 콘크리트 구조물로 하고, 상기 구조물을 포화진공상태에서 표본을 수평축에 올려놓고 다음엔 3% 염화나트륨 용해물이 스며들게 한 플라스틱 장비의 수평축에 올려놓고 다음에는 3% NaOH 용해물에 놓고 6시간 동안 관찰하였다.The test specimen was a cylindrical concrete structure with a diameter of 3 inches and a length of 2 inches. The specimen was placed on a horizontal axis in a saturated vacuum state, and then placed on a horizontal axis of a plastic equipment in which 3% sodium chloride solution was infiltrated. Placed in% NaOH lysate and observed for 6 hours.
이때, 6시간동안 전류계 모니터를 녹화하여 면적을 통과하는 전류대비 시간 곡선으로 콘크리트 전체에 흐르는 전하량을 측정하여 염소침투성을 측정한 결과, 본 발명 조성물은 염소를 거의 통과시키지 않았다(도 1 참조).At this time, by recording the ammeter monitor for 6 hours to measure the amount of charge flowing through the concrete as a time curve compared to the current passing through the area to measure the chlorine permeability, the composition of the present invention almost did not pass chlorine (see Fig. 1).
실시예 3 : 본 발명 조성물에 의한 시공방법Example 3 Construction Method According to the Invention Composition
상기 실시예 1에 따라 제조된 본 발명 조성물을 도 2에 도시된 바와 같이 실시하되 특히, 다음과 같이 시공하였다.The composition of the present invention prepared according to Example 1 was carried out as shown in FIG. 2, in particular, as follows.
본 발명 조성물에 의거 시공전 콘크리트의 부착력을 증진시키기 위해 슬라브의 먼지와 lubricant, solvent oil 등의 오염물질을 제거하고 표면에 드러난 골재 및 Laitance를 제거한다.In accordance with the composition of the present invention to remove the contaminants such as dirt, lubricant, solvent oil of the slab in order to enhance the adhesion of the concrete before construction, and remove the aggregate and laitance on the surface.
또, 기존 콘크리트의 흡수에 의한 교면포장용 개질콘크리트의 탈수로 인한 신·구 콘크리트의 계면 유해요소를 방지하기 위하여 콘크리트 슬라브에 3∼4일간 습윤상태로 유지한 후, Blasting 또는 진공펌프를 이용하여 기존 콘크리트를 표면건조포화상태로 만들어 시공전 교면준비를 완료한다.In addition, in order to prevent interfacial harmful elements of new and old concrete due to dehydration of modified concrete for cross-linking paving by absorption of existing concrete, the concrete slab is kept wet for 3 to 4 days, and then used by using a blasting or vacuum pump. The concrete is brought to the surface dry saturation state and the preparation of the bridge is completed before construction
다음, 본 발명 조성물로 시공함에 있어서 방호벽에 Rail 설치대를 만들어 소요의 평탄성을 확보할 수 있도록 Rail을 설치하고, 설치된 Rail을 이용 Deck Finisher, 인력작업대, 타이닝 장비대, 양생제 살포대, Burlap covering대 등의 장비 이동수단으로 활용하며 본 발명 조성물을 포설하여 Deck Finisher로 소요의 평탄과 계획고를 확보하고, 타이닝을 실시한 다음 피막양생제를 살포한 후 Burlap을 씌워 48시간 습윤양생을 실시한다.Next, in the construction of the present invention, the rail is installed on the protective wall to install the rail to ensure the flatness of the required, using the installed rail Deck Finisher, manpower workbench, tying equipment stand, curing agent spreading table, Burlap covering The present invention composition is used as a means of moving equipment, such as the Deck Finisher to secure the required flatness and plan height, and after performing the tinning and coating the coating curing agent and then covered with a laplap to perform a wet curing for 48 hours.
이상 실시 예에 따라 설명한 바와 같이, 본 발명은 유동성과 점착성이 뛰어나 수밀성, 내구성, 접착성이 우수한 교량의 교면 포장에 유용한 개질 콘크리트 조성물을 제공하는 효과가 있으며, 국내·외 신설교량 및 노후교량의 재포장에 적용시 염해의 피해가 없으며, 종래의 보통 콘크리트 등에 의한 교면 포장공법에 비하여 철근 부식이나 균열발생이 없는 교면 시공방법용 제공하는 뛰어난 효과가 있으므로 교면 포장산업상 매우 유용한 발명인 것이다.As described in accordance with the above embodiments, the present invention has the effect of providing a modified concrete composition useful for the bridge pavement of bridges excellent in fluidity and adhesion, watertightness, durability, adhesion, domestic and foreign new bridges and aging bridges When applied to re-packaging, there is no damage of salt, and compared to the conventional pavement paving method by conventional concrete, it is a very useful invention for the pavement paving industry because it provides an excellent effect for the bridge construction method without reinforcing corrosion or cracking.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102127941B1 (en) | 2020-02-21 | 2020-06-30 | 주식회사 에이지 | High early strength cement concrete composition with rubber latex impregnated Ca-alginate bead and a repairing method of road pavement using the same |
| KR102194680B1 (en) | 2020-06-25 | 2020-12-28 | 주식회사 중앙폴리텍 | High early strength cement concrete composition for road pavement having excellent shrinkage-reducing effect and a repairing method of road pavement using the same |
| KR20230123082A (en) | 2022-02-15 | 2023-08-23 | 송정일 | Rapid hardening modified concrete composition comprising mica powder and plastic fiber and construction method for road pavement using the same |
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| KR20010079017A (en) * | 2001-06-04 | 2001-08-22 | 양영규 | Manufacturing method of driveway and Road boundary block for Road |
| KR100421255B1 (en) * | 2001-06-18 | 2004-03-09 | 금호석유화학 주식회사 | a concrete or a mortar having synthetic rubber latex and Waterproof paving method using the concrete and the mortar |
| KR100431904B1 (en) * | 2002-03-19 | 2004-05-17 | 주식회사 승화이엔씨 | Construction method of latex modified concrete for the use of a paving equipment |
| KR100471989B1 (en) * | 2004-06-21 | 2005-03-14 | 후암산업 주식회사 | Method for paving of a road and paving materials |
| KR100694214B1 (en) * | 2005-05-24 | 2007-03-14 | 황광호 | Antifungal sand, brick, bloc, moulding for water purification and method of water purification using here |
| KR100921937B1 (en) * | 2009-04-07 | 2009-10-15 | 주식회사 포이닉스 | A low noise type paved lmc material composition |
| KR101134128B1 (en) * | 2011-11-02 | 2012-04-09 | 조남수 | Manufacturing method for latex composite and method for constructing lining for contrete wall |
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| KR19980071164A (en) * | 1997-02-21 | 1998-10-26 | 홍영근 | Elastic Permeable Concrete and Its Manufacturing Method |
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| Title |
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| ACI MATERIALS JOURNAL(548.4)에는 「LMC(Latex-Modified Concrete) * |
| 도로포장공학회지(제2권 1호)에는「라텍스 콘크리트의 교면포장 적용(제55면 내지 63면)」 * |
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| KR102127941B1 (en) | 2020-02-21 | 2020-06-30 | 주식회사 에이지 | High early strength cement concrete composition with rubber latex impregnated Ca-alginate bead and a repairing method of road pavement using the same |
| KR102194680B1 (en) | 2020-06-25 | 2020-12-28 | 주식회사 중앙폴리텍 | High early strength cement concrete composition for road pavement having excellent shrinkage-reducing effect and a repairing method of road pavement using the same |
| KR20230123082A (en) | 2022-02-15 | 2023-08-23 | 송정일 | Rapid hardening modified concrete composition comprising mica powder and plastic fiber and construction method for road pavement using the same |
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