JP2004346290A - Reinforcing material for concrete or timber, water-permeable paving material, and structure using them - Google Patents

Reinforcing material for concrete or timber, water-permeable paving material, and structure using them Download PDF

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Publication number
JP2004346290A
JP2004346290A JP2003180286A JP2003180286A JP2004346290A JP 2004346290 A JP2004346290 A JP 2004346290A JP 2003180286 A JP2003180286 A JP 2003180286A JP 2003180286 A JP2003180286 A JP 2003180286A JP 2004346290 A JP2004346290 A JP 2004346290A
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Prior art keywords
paste
epoxy resin
concrete
water
weight
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JP2003180286A
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Japanese (ja)
Inventor
Kunishige Miyoshi
邦重 三好
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FIBER DAIN KK
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FIBER DAIN KK
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Priority to JP2003180286A priority Critical patent/JP2004346290A/en
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  • Paints Or Removers (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide paste-type reinforcing materials for increasing the strength of a concrete structure and of a timber structure, a paste-type water-permeable paving material, and a structure using the reinforcing materials and the paving material. <P>SOLUTION: The paste-type concrete reinforcing material contains an epoxy resin, carbon fibers, rock wool, and a colorant. The paste type timber reinforcing material contains an epoxy resin, aramid fibers, rock wool and a colorant. The paste-type water-permeable paving material contains an epoxy resin, ceramic fibers, glass fibers, and a thickener aerosil. The concrete and the timber structures use the reinforcing materials, and the water-permeable paved structure is made by using a mixture of the paving material and an aggregate. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【産業上の利用分野】
本発明は、コンクリートおよび木材のペースト状補強剤および路面などのペースト状透水性舗装剤およびそれらを用いた構造物に関する。
【0002】
【従来の技術】
従来のものは、化粧用塗料であり、二度塗り・三度塗りを行っても膜厚は0.15mm程度であり、補強剤とは言えない。また、骨材との混合では樹脂ダレが生じ、透水性舗装剤とも言い難い。
【0003】
従来、コンクリート構造体を補強するには、コンクリート構造物に炭素繊維シートやガラス繊維シート、アラミド繊維シートを接着する方法があったが、多くの人手と、かなりの工期を必要とした。
そこで、これらの問題を解決するための先行技術として、同一発明者の特開2003−119421号がある。
【0004】
【発明が解決しようとする課題】
本発明は従来コンクリート・木材用塗料および樹脂補強剤に関する概念を打破し、簡単にコンクリート・木材の構造物に、適用することができ、これにより強度向上をもたらすことのできる新規なペースト状補強剤および骨材との混合で、透水性を有する舗装剤とそれらを用いた構造物を提供することを目的とする。
【0005】
【課題を解決するための手段】
本発明の第1はエポキシ樹脂の重量を基準にして、炭素繊維2〜5重量%、好ましくは3〜4重量%、ロックウール1〜2重量%、好ましくは1.5重量%、顔料0.5〜1重量%、好ましくは0.75重量%を含有するペースト状コンクリート補強剤である。
本発明の第2はエポキシ樹脂の重量を基準にして、アラミド繊維2〜4重量%、好ましくは2.5〜3.5重量%、ロックウール1〜2重量%、好ましくは1.5重量%、顔料0.5〜1重量%、好ましくは0.75重量%を含有するペースト状木材補強剤である。
本発明の第3はエポキシ樹脂の重量を基準にして、セラミック繊維2〜4重量%、好ましくは3重量%、ガラス繊維5〜8重量%、好ましくは6〜7重量%、増粘剤アエロジル1〜2重量%、好ましくは1.5重量%を含有するペースト状透水性舗装剤である。
本発明の第4はコンクリートの表面にペースト状補強剤が0.8〜1.5mmの膜厚(乾燥時の膜厚)を形成した構造物である。
本発明の第5は木材の表面にペースト状補強剤が0.8〜1.5mmの膜厚(乾燥時の膜厚)を形成した構造物である。
本発明の第6はペースト状透水性舗装剤を骨材重量を基準にして、4〜8重量%を混合することで透水性に優れた舗装剤を形成した構造物である。
【0006】
本発明で用いる炭素繊維は、長さが2〜4mm、好ましくは3mmである。2mmより短いと強化繊維として必要な役割を充分達成することができず、4mmより長いと作業性が悪化するので好ましくない。
アラミド繊維の場合は、長さが2〜6mm、好ましくは3〜4mmであり、ガラス繊維の場合は、長さが0.1〜3mm、好ましくは0.5〜1mm、セラミック繊維の場合は、長さ5〜10mm、好ましくは3〜6mmである。
【0007】
各繊維の太さは、繊維の材質により適正な太さが変わってくる。炭素繊維の場合は、直径3〜15μm、好ましくは5〜10μmであり、アラミド繊維の場合は、直径5〜20μm、好ましくは10〜15μmであり、ガラス繊維の場合は、直径6〜10μm、好ましくは8μmであり、セラミック繊維の場合は、直径100〜300μm、好ましくは150〜200μmである。
【0008】
本発明に用いるセラミック繊維としては、アルミナ繊維・ボロン繊維・炭化ケイ素繊維などがある。
【0009】
本発明に用いる炭素繊維としては、高強度タイプ・超高度タイプ・高弾性タイプがあるが、必要に応じて単独あるいは併用して使用することができる。
【0010】
本発明に用いるアラミド繊維としては、高弾性タイプ・超高弾性タイプがあるが、必要に応じて単独あるいは併用して使用することができる。
【0011】
本発明に用いるガラス繊維やセラミック繊維は、樹脂成分との親和性を高めるため、カップリング処理を施すことが望ましい。
【0012】
本発明に用いるエポキシ樹脂としては、常温乾燥型のエポキシ樹脂として用いられているものがこのましい。これらのエポキシ樹脂に、アミンまたは、ポリアミドなどの硬化剤を配合する。
本発明では、液状エポキシ樹脂を用いて無溶剤型として使用する。本発明におけるエポキシ樹脂としては、ビスフェノールF型エポキシ樹脂である。
【0013】
【発明の実施の形態】
本発明の実施の形態を実施例に基づいて説明する。
【0014】
【実施例1】
エポキシ樹脂(ビスフェノールF型 エポキシ樹脂 : ジャパンエポキシレジン(株)商品名 エピコート807)1kg、炭素繊維(繊維の長さ3mm)30g、ロックウール10g、顔料8gを10分〜20分混練する。
使用前に硬化剤として、変性脂環式ポリアミン(商品名 ダイトラーク HD−438) 300gを混合し、タテ300mm×ヨコ300mm、×厚さ60mmのコンクリート板の1面に1.5kg/mの塗布量で塗布した。
【0015】
コンクリート板の曲げ強度を塗布前、実施例1の塗布硬化後および市販塗料の硬化後の3試験体に付いてそれぞれ測定した。
その結果を下記表1に示す。
【0016】
【表1】

Figure 2004346290
表1から明らかな通り、本発明の補強剤を塗布することにより、コンクリート板は塗布しない板に比べて、約3倍の曲げ強度の改善効果が見られた。
【0017】
【実施例2】
エポキシ樹脂(ビスフェノールF型 エポキシ樹脂 : ジャパンエポキシレジン(株)商品名 エピコート807)1kg、アラミド繊維(繊維の長さ3mm)30g、ロックウール10g、顔料8gを10分〜20分混練する。
使用前に硬化剤として、変性脂環式ポリアミン(商品名 ダイトラーク HD−438)300gを混合し、90mm四角×長さ150cmの角材の試験体を2本用意し、1本には柱の1面に、もう1本には柱の2面に、1.5kg/mの塗布量で塗布した。
その結果を下記表2に示す。
【0018】
角材の曲げ強度を塗布なし、実施例2の1面塗布硬化後、および2面塗布硬化後の3試験体についてそれぞれ測定した。
【0019】
【表2】
Figure 2004346290
表2から明らかな通り、本発明の補強剤を塗布することにより、角材は塗布しない角材に比べて、曲げ強度の改善効果がみられた。
【0020】
【実施例3】
エポキシ樹脂(ビスフェノールF型 エポキシ樹脂 : ジャパンエポキシレジン(株)商品名 エピコート807)1kg、セラミック繊維30g、ガラス繊維60gアエロジル(200S)15gを10分〜20分混練する。
使用前に硬化剤として、変性脂環式ポリアミン(商品名 ダイトラークHD−438)400gを混合し、骨材(7号砕石)20kgを合わせ、よく混練する。タテ300mm×ヨコ300mm×厚さ60mmの型に投入し硬化後脱型する。
【0021】
実施例3で作成した平板の曲げ強度と、透水率を測定した。
その結果を下記表3に示す。
【0022】
【表3】
Figure 2004346290
表3から明らかな通り、通常、透水性構造体の曲げ強度は、3.0N/mmで透水率は0.01cm/秒となっており、本発明の曲げ強度は、約3倍、透水率は、約25倍の改善効果が見られた。
【0023】
【発明の効果】
本発明の硬化は、ダレが生ずることなく、表面に0.8〜1.5mmという厚い塗膜を迅速に形成することができ、これによりいままでの補強工事に比較して工期を著しく短縮することができた。また、骨材との混合により、強度のある透水性の優れた舗装剤ができた。そして、これらの補強剤や舗装剤を用いることにより、曲げ強度や透水性に優れた構造物ができた。[0001]
[Industrial applications]
The present invention relates to a paste-like reinforcing agent for concrete and wood, a paste-like water-permeable pavement such as a road surface, and a structure using the same.
[0002]
[Prior art]
The conventional paint is a cosmetic paint, and its film thickness is about 0.15 mm even if it is applied twice or three times, and cannot be said to be a reinforcing agent. In addition, when mixed with the aggregate, resin dripping occurs, and it is hard to say that it is a water-permeable pavement agent.
[0003]
Conventionally, in order to reinforce a concrete structure, there has been a method of bonding a carbon fiber sheet, a glass fiber sheet, or an aramid fiber sheet to the concrete structure, but it requires a lot of manpower and a considerable construction period.
As a prior art for solving these problems, there is JP-A-2003-119421 of the same inventor.
[0004]
[Problems to be solved by the invention]
The present invention breaks the conventional concept of paint and resin reinforcing agents for concrete and wood, and is a novel paste-like reinforcing agent that can be easily applied to concrete and wood structures, thereby improving strength. Another object of the present invention is to provide a paving agent having water permeability and a structure using the same by mixing with an aggregate.
[0005]
[Means for Solving the Problems]
A first aspect of the present invention is that, based on the weight of the epoxy resin, 2 to 5% by weight, preferably 3 to 4% by weight of carbon fiber, 1 to 2% by weight, preferably 1.5% by weight of rock wool, pigment 0.1%. It is a pasty concrete reinforcing agent containing 5 to 1% by weight, preferably 0.75% by weight.
A second aspect of the present invention is that aramid fiber is 2 to 4% by weight, preferably 2.5 to 3.5% by weight, rock wool is 1 to 2% by weight, preferably 1.5% by weight based on the weight of the epoxy resin. , A paste-like wood reinforcing agent containing 0.5 to 1% by weight, preferably 0.75% by weight of a pigment.
A third aspect of the present invention is that, based on the weight of the epoxy resin, 2 to 4% by weight, preferably 3% by weight of ceramic fibers, 5 to 8% by weight, preferably 6 to 7% by weight of glass fibers, and the thickener Aerosil 1 It is a paste-like water-permeable pavement containing about 2% by weight, preferably 1.5% by weight.
A fourth aspect of the present invention is a structure in which the paste-like reinforcing agent has a thickness of 0.8 to 1.5 mm (dry thickness) formed on the surface of concrete.
A fifth aspect of the present invention is a structure in which the paste-like reinforcing agent has a thickness of 0.8 to 1.5 mm (dry thickness) formed on the surface of wood.
A sixth aspect of the present invention is a structure in which a paste-like water-permeable pavement is mixed with 4 to 8% by weight based on the weight of the aggregate to form a pavement having excellent water-permeability.
[0006]
The carbon fiber used in the present invention has a length of 2 to 4 mm, preferably 3 mm. If it is shorter than 2 mm, the required role as a reinforcing fiber cannot be sufficiently achieved, and if it is longer than 4 mm, workability deteriorates, which is not preferable.
In the case of aramid fiber, the length is 2 to 6 mm, preferably 3 to 4 mm.In the case of glass fiber, the length is 0.1 to 3 mm, preferably 0.5 to 1 mm. The length is 5 to 10 mm, preferably 3 to 6 mm.
[0007]
The appropriate thickness of each fiber changes depending on the material of the fiber. In the case of carbon fiber, the diameter is 3 to 15 μm, preferably 5 to 10 μm, in the case of aramid fiber, the diameter is 5 to 20 μm, preferably 10 to 15 μm, and in the case of glass fiber, the diameter is 6 to 10 μm, preferably Is 8 μm, and in the case of ceramic fibers, the diameter is 100 to 300 μm, preferably 150 to 200 μm.
[0008]
Examples of the ceramic fibers used in the present invention include alumina fibers, boron fibers, and silicon carbide fibers.
[0009]
The carbon fiber used in the present invention includes a high-strength type, an ultra-high-strength type, and a high-elasticity type, and can be used alone or in combination as needed.
[0010]
The aramid fibers used in the present invention include a high elasticity type and an ultra-high elasticity type, and can be used alone or in combination as needed.
[0011]
The glass fiber or ceramic fiber used in the present invention is desirably subjected to a coupling treatment in order to increase the affinity with the resin component.
[0012]
As the epoxy resin used in the present invention, those used as room temperature drying type epoxy resins are preferred. A curing agent such as an amine or a polyamide is blended with these epoxy resins.
In the present invention, a liquid epoxy resin is used as a solventless type. The epoxy resin in the present invention is a bisphenol F type epoxy resin.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention will be described based on examples.
[0014]
Embodiment 1
1 kg of epoxy resin (bisphenol F type epoxy resin: Japan Epoxy Resin Co., Ltd., Epicoat 807), 30 g of carbon fiber (fiber length 3 mm), 10 g of rock wool, and 8 g of pigment are kneaded for 10 to 20 minutes.
Before use, 300 g of a modified alicyclic polyamine (trade name: DAITRAK HD-438) is mixed as a curing agent, and 1.5 kg / m 2 is applied to one surface of a concrete plate having a length of 300 mm x a width of 300 mm and a thickness of 60 mm. Amount applied.
[0015]
The flexural strength of the concrete plate was measured for each of the three specimens before application, after application and curing of Example 1, and after curing of the commercial paint.
The results are shown in Table 1 below.
[0016]
[Table 1]
Figure 2004346290
As is clear from Table 1, by applying the reinforcing agent of the present invention, the effect of improving the bending strength of the concrete plate by about three times was observed as compared with the plate not coated.
[0017]
Embodiment 2
1 kg of epoxy resin (bisphenol F type epoxy resin: Japan Epoxy Resin Co., Ltd. Epicoat 807), 30 g of aramid fiber (fiber length 3 mm), 10 g of rock wool, and 8 g of pigment are kneaded for 10 to 20 minutes.
Before use, 300 g of a modified alicyclic polyamine (trade name: DAITRAK HD-438) is mixed as a curing agent, and two test pieces of 90 mm square × 150 cm length are prepared. The other was applied to two surfaces of the pillar at an application amount of 1.5 kg / m 2 .
The results are shown in Table 2 below.
[0018]
The bending strength of the square bar was measured for each of three test pieces without coating, after one-side coating and hardening in Example 2, and after two-side coating and hardening.
[0019]
[Table 2]
Figure 2004346290
As is clear from Table 2, the application of the reinforcing agent of the present invention showed an effect of improving the bending strength as compared with the uncoated square material.
[0020]
Embodiment 3
1 kg of epoxy resin (bisphenol F type epoxy resin: Japan Epoxy Resin Co., Ltd. Epicoat 807), 30 g of ceramic fiber, 60 g of glass fiber and 15 g of Aerosil (200S) are kneaded for 10 to 20 minutes.
Before use, 400 g of a modified alicyclic polyamine (trade name: DAITRAK HD-438) is mixed as a curing agent, and 20 kg of aggregate (crushed stone No. 7) is mixed and kneaded well. It is put into a mold having a length of 300 mm, a width of 300 mm and a thickness of 60 mm.
[0021]
The bending strength and the water permeability of the flat plate prepared in Example 3 were measured.
The results are shown in Table 3 below.
[0022]
[Table 3]
Figure 2004346290
As is clear from Table 3, the bending strength of the water-permeable structure is usually 3.0 N / mm 2 and the water permeability is 0.01 cm / sec, and the bending strength of the present invention is about three times that of the water-permeable structure. The rate was improved about 25 times.
[0023]
【The invention's effect】
The hardening of the present invention can quickly form a thick coating film of 0.8 to 1.5 mm on the surface without sagging, thereby significantly shortening the construction period as compared with conventional reinforcement work. I was able to. Also, by mixing with the aggregate, a pavement having strong and excellent water permeability was obtained. By using these reinforcing agents and paving agents, a structure excellent in bending strength and water permeability was obtained.

Claims (6)

エポキシ樹脂の重量を基準にして、炭素繊維2〜5%、ロックウール1〜2%、顔料1.5%を含有するペースト状コンクリート補強剤。Paste concrete reinforcing agent containing 2 to 5% of carbon fiber, 1 to 2% of rock wool, and 1.5% of pigment based on the weight of epoxy resin. エポキシ樹脂の重量を基準にして、アラミド繊維2〜4%、ロックウール1〜2%、顔料0.5〜1%を含有するペースト状木材補強剤。Paste wood reinforcing agent containing 2 to 4% of aramid fiber, 1 to 2% of rock wool, and 0.5 to 1% of pigment, based on the weight of epoxy resin. エポキシ樹脂の重量を基準にして、セラミック繊維2〜4%、ガラス繊維5〜8%、増粘剤アエロジル1〜2%を含有するペースト状透水性舗装剤。A paste-like water-permeable pavement containing 2 to 4% of ceramic fiber, 5 to 8% of glass fiber, and 1 to 2% of thickener Aerosil based on the weight of epoxy resin. 請求項1記載のペースト状補強剤を、1回の塗布で0.8〜1.5mmの膜厚で形成されることを特徴とするコンクリート構造物。A concrete structure, wherein the paste-like reinforcing agent according to claim 1 is formed in a thickness of 0.8 to 1.5 mm by one application. 請求項2記載のペースト状補強剤を、1回の塗布で0.8〜1.5mmの膜厚で形成されることを特徴とする木材構造物。A wood structure, wherein the paste-like reinforcing agent according to claim 2 is formed in a thickness of 0.8 to 1.5 mm by one application. 請求項3記載のペースト状透水性舗装剤に、骨材重量の4〜8%を混合することを特徴とする透水性舗装構造物。A water-permeable pavement structure, characterized in that the paste-like water-permeable pavement according to claim 3 is mixed with 4 to 8% of the weight of the aggregate.
JP2003180286A 2003-05-22 2003-05-22 Reinforcing material for concrete or timber, water-permeable paving material, and structure using them Withdrawn JP2004346290A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006219624A (en) * 2005-02-14 2006-08-24 Konishi Co Ltd Two-component putty epoxy resin composition
KR100741147B1 (en) 2006-12-08 2007-07-19 주식회사 세진로드 Thermal barrier paint for road
KR100890228B1 (en) * 2008-09-19 2009-03-24 (주)일원산업 Water permeable ceramic block
KR101348084B1 (en) * 2012-01-18 2014-01-07 이향서 Composition comprising fibrous adhesive for paving road and a method of manufacturing the same
JP7442787B2 (en) 2019-12-19 2024-03-05 東京新建装株式会社 Wall surface reinforcement paint and coating film

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006219624A (en) * 2005-02-14 2006-08-24 Konishi Co Ltd Two-component putty epoxy resin composition
KR100741147B1 (en) 2006-12-08 2007-07-19 주식회사 세진로드 Thermal barrier paint for road
KR100890228B1 (en) * 2008-09-19 2009-03-24 (주)일원산업 Water permeable ceramic block
KR101348084B1 (en) * 2012-01-18 2014-01-07 이향서 Composition comprising fibrous adhesive for paving road and a method of manufacturing the same
JP7442787B2 (en) 2019-12-19 2024-03-05 東京新建装株式会社 Wall surface reinforcement paint and coating film

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