JP4030717B2 - Corrosion-resistant treatment method for concrete frame surface - Google Patents

Corrosion-resistant treatment method for concrete frame surface Download PDF

Info

Publication number
JP4030717B2
JP4030717B2 JP2000378617A JP2000378617A JP4030717B2 JP 4030717 B2 JP4030717 B2 JP 4030717B2 JP 2000378617 A JP2000378617 A JP 2000378617A JP 2000378617 A JP2000378617 A JP 2000378617A JP 4030717 B2 JP4030717 B2 JP 4030717B2
Authority
JP
Japan
Prior art keywords
corrosion
resistant
construction
resistant panel
panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2000378617A
Other languages
Japanese (ja)
Other versions
JP2002178445A (en
Inventor
眞 金氏
義人 万代
博之 悦道
治 中野
宣夫 石崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kajima Corp
Original Assignee
Kajima Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kajima Corp filed Critical Kajima Corp
Priority to JP2000378617A priority Critical patent/JP4030717B2/en
Publication of JP2002178445A publication Critical patent/JP2002178445A/en
Application granted granted Critical
Publication of JP4030717B2 publication Critical patent/JP4030717B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Building Environments (AREA)
  • Laminated Bodies (AREA)

Description

【0001】
【発明の属する技術分野】
この発明は汚水処理場、下水処理場などの処理水槽、あるいはメッキ層、超純粋槽などを形成するコンクリート躯体表面の耐蝕処理工法(防食処理を含む、以下同じ)、特に耐蝕パネルを使用する耐蝕処理工法に関するものである。
【0002】
さらに具体的に言えば、この発明は水槽の側壁部分、柱部分、梁部分、上床版部分の平面部、入り隅部、出隅部における耐蝕パネルどうしの接合部(目地部)の耐蝕処理工法の改良に関するものである。
【0003】
【従来技術】
下水処理場などの水槽がコンクリート造の躯体で形成される場合は、下水から発生する硫化水素とこれを酸化させるバクテリア(硫黄酸化細菌)の働きによって生成される硫酸からコンクリート造躯体を保護して耐用寿命を確保し維持する必要から、コンクリート造躯体表面の耐蝕処理が不可欠である。
【0004】
従来、一般に実施されてきた耐蝕施工法としては、コンクリート造躯体の構築後に、そのコンクリート表面に耐蝕材を塗布するかまたは吹き付ける方法、あるいは耐蝕シートを貼り付ける方法などが知られている。
【0005】
しかし、上述した耐蝕処理施工法は、工期が長びく上に耐蝕処理の長期の信頼性、実効性に欠ける他、作業員を確保する労務管理、作業員の技能格差に起因する品質管理、品質保証にも問題があった。
【0006】
上述した問題を解決する手段として、例えば、特許公報第2772919号(以下、「第一号発明」という)には、耐蝕パネルを使用した耐蝕処理施工法が開示されている。
【0007】
また、特許公報第3060201号(以下、「第二号発明」という)には、側壁部分(立ち上がり壁部分)において、耐蝕パネルの組立てに釘を一切使用せず、さらに組立てに大工職人を必要としない「釘レス工法」が開示されている。
【0008】
【発明が解決しようとする課題】
第一号発明の耐蝕処理施工法では、耐蝕パネルを桟木に釘打ちにより取り付け固定する大工仕事、及び型枠装置の組立て時には耐蝕パネルの桟木どうしを釘打ちにより結合する大工仕事がそれぞれ不可欠で、大工職人の確保が重要であるほか、前記の大工仕事は大変面倒で手間が多くかかる。
【0009】
また、型枠装置を解体した場合、桟木を取り除いた跡には同桟木を固定していた釘が多数露出するため、目地部分を最終的に耐蝕処理するためには前記のように露出した釘を全て切除する作業が不可欠である。
【0010】
また、釘を切除するための切断機を用意しなければならないし、釘の切断作業は釘の数が多いほど面倒で手間がかかり、その上高所作業もあり、きわめて危険でもある。さらに、釘を切断する作業時に耐蝕パネルを損傷させる危険性が大である。
【0011】
第二号発明の耐蝕処理施工法では、水槽の側壁郁分(立上がり壁部分)について、釘を用いないでパネルを桟木に固定する方法が示されているが、依然としてコンクリート硬化後に桟木を取り外す手間は残っており、しかも柱、梁などの出隅、入り隅に関しては有効な方法が示されていないために、耐蝕パネルの組立てに大工職人が必要であり、問題の完全な解決には至っていない。
【0012】
したがって、第一番目の課題は、「コンクリート硬化後の支保工解体時に、解体・搬出を必要とする桟木などの資材を使用しないで耐蝕パネルを組み立てること」である。
【0013】
また、耐蝕パネルによる耐蝕処理施工法において、一般に耐蝕パネル本体は工場で製作されるものであって、通常の施工現場よりも管理の行き届いた環境で製作されること、及び現場に納入された時点で不良品を排除できる等の点が、現場施工の耐蝕工法に比較して品質管理上優れている。
【0014】
ところが、耐蝕パネルどうしの接合部分、即ち目地部分は唯一現場施工される部分として残されており、施工管理が十分行き届かない場合においてはこの目地部分で欠陥が発生する可能性が残っている。
【0015】
また、第一号発明および第二号発明における目地部分の耐蝕処理は、耐蝕パネルどうしの継ぎ目を耐蝕パネルの表面と同じ樹脂材料を使用して耐蝕ライニングを施工する方法をとっているから、異種材料の接着性能に較べると信頼性が高いとはいえるが、万一耐蝕ライニングの接着性能が損なわれた場合には、その部分の耐蝕性能は著しく損なわれることになる。
【0016】
このため、現場施工において欠陥の発生をゼロにすることは不可能に近く、接合部に二層以上の保護層を設けることで欠陥の発生確率を小さくすることが望ましい。したがって、第二番目の課題は、「目地部分の耐蝕構造を二重構造とすること」である。
【0017】
この発明は、以上の課題を解決するためになされたもので、特に支保工解体の際、解体・搬出を必要とする桟木などの資材を使用しないで耐蝕パネルを組み立てることができ、かつ耐蝕パネルどうしの接合部(目地部)の耐蝕処理を確実に行えるようにしたコンクリート躯体表面の耐蝕処理工法を提供することを目的とするである。
【0018】
【課題を解決するための手段】
請求項1記載のコンクリート躯体の表面耐蝕処理工法は、コンクリート躯体の表面を複数の耐蝕パネルによって耐蝕処理するコンクリート躯体表面の耐蝕処理工法であって、先に取り付けられる先施工耐蝕パネルの表面に後から取り付けられる後施工耐蝕パネルの端部を当接し、当該先施工耐蝕パネルと後施工耐蝕パネルとからなる入り隅接合部の裏側に、断面ほぼ山形状の裏当て部材を、当該裏当て部材の一方のフランジを前記先施工耐蝕パネルの端部に、他方のフランジを前記後施工耐蝕パネルの端部にそれぞれ固定して取り付け、前記先施工耐蝕パネルと前記後施工耐蝕パネルとの接合部に耐蝕シール材を三角形状をなすように充填し、当該耐蝕シール材および当該シール材の両側の耐蝕パネルの上に耐蝕ライニング材を取り付けることを特徴とするものである。
【0019】
裏当て部材は、例えば発泡ポリスチレンなどの発泡性樹脂材から押出し成形されたもので、特に壁などの平面接合部においては帯状の平板を、入り隅部や出隅部、立上がりなどの角度を持った接合部においては、これらの部位の形状に容易に追従できるように所定の角度を有して断面ほぼ等辺または不等辺山形状(L字状)に形成された裏当て部材を使用する。
【0020】
また、耐蝕パネルとしては、表層に補強層としてビニルエステル樹脂FRP(厚さ2mm程度)を、中層に軽量エポキシ樹脂モルタル(厚さ9mm程度)を、そしてコンクリート躯体とする裏層に補強層としてエポキシ樹脂FRP(厚さ1mm程度)をそれぞれ配置し、これらの層が完全一体化された3層構造のパネルとして形成されたものを使用する。
【0021】
こうして形成された耐蝕パネルは通常の型枠合板と厚さ、重量ともにほぼ同じであり、また強度も通常の型枠合板と同等の強度を有し、さらに表層と裏層が防食性能を有している。また、裏層の表面には躯体コンクリートとの一体化をはかるべく、例えばABS製のアンカーピースが所定間隔おきに複数突設されている。
【0022】
施工に際しては、耐蝕パネルを通常の型枠合板とほぼ同じ方法で型枠組みし、コンクリートを打設し、そしてコンクリート打設後、耐蝕パネルを残し支保工のみを解体する。
【0023】
耐蝕パネルの型枠組に際しては、可能な範囲で耐蝕パネルを複数接合して大型パネル化することにより、現位置での型枠組の工程短縮および省力化を図るものとする。
【0024】
特に、耐蝕パネルどうしの接合部においては、先に取り付けられる先施工の耐蝕パネルの裏面端部に、あらかじめ裏当て部材を接合しておき、後から取り付けられる後施工の耐蝕パネルを裏当て部材に、先施工の耐蝕パネルとの間に所定の間隔をあけて固定する。
【0025】
この場合の耐蝕パネルと裏当て部材は、接着材および/または固定ねじで接合するものとし、固定ねじとしては木ねじやスクリューネジ等を使用する(以下、「固定ねじ」という)。
【0026】
これによって、先施工の耐蝕パネルと後施工の耐蝕パネルは裏当て部材によって堅固に接合され、また裏当て部材はコンクリート打設面に接合されており、耐蝕パネルとともにコンクリートの埋設型枠を形成するので、コンクリート硬化後に解体除去する必要がない。
【0027】
なお、この場合の裏当て部材は、上記のように固定ねじで耐蝕パネルに接合されるので、固定ねじが貫通し、かつ固定ねじが貫通した後にパネルを引き寄せて間隙なく接合するだけの強度が必要であり、このため耐食性に優れた樹脂を所定の倍率で発泡させたものを裏当て部材として使用するのが良い。
【0028】
また、壁などの平面接合部においては、耐蝕パネルを複数枚並べて組み立てることが通常であるから、施工誤差を吸収するためにパネル間に10mm程度の目地(隙間)を設けるのが望ましい。
【0029】
また、固定ねじで耐蝕パネルを裏当て部材に固定する際に、耐蝕パネルの縁端にあまり近いところで固定ねじを貫通しようとすると耐蝕パネルが欠ける恐れがあるので、20mm程度の縁開きをとる必要があり、したがって、裏当て部材の幅は、目地幅、固定ねじ施工の縁開きおよび施工誤差などを考慮して決定する必要がある。
【0030】
請求項2記載のコンクリート躯体の表面耐蝕処理工法は、コンクリート躯体の表面を複数の耐蝕パネルによって耐蝕処理するコンクリート躯体表面の耐蝕処理工法であって、先に取り付けられる先施工耐蝕パネルと後から取り付けられる後施工耐蝕パネルの端部どうしを突き合わせ、当該先施工耐蝕パネルと後施工耐蝕パネルとからなる出隅接合部の裏側に、断面ほぼ山形状の裏当て部材を、当該裏当て部材の一方のフランジを前記先施工耐蝕パネルの端部に、他方のフランジを前記後施工耐蝕パネルの端部にそれぞれ固定して取り付け、当該先施工耐蝕パネルと後施工耐蝕パネルとの接合部に当該先施工耐蝕パネルおよび後施工耐蝕パネルの端部を覆うように耐食シール材を充填し、当該耐蝕シール材および当該耐蝕シール材の両側の耐蝕パネルの上に耐蝕ライニング材を取り付けることを特徴とするものである。
柱や壁などの出隅部や入り隅部においては、押出し成形方式などによって予め所定の角度(特に角度は限定されないが、通常は直角)に折れ曲がった断面ほぼ等辺山形状(L字状)に形成された裏当て部材を使用し、これによって耐蝕パネルどうしを接合することができる。
【0031】
また、べースコンクリートからの立上がり部分では、裏当て部材を不等辺山形状に形成し、短辺側のフランジ(水平部)をべースコンクリートにコンクリート釘などで釘止めし、長辺側のフランジ(立上がり部)を立ち上げて設置する。
【0032】
また、べースコンクリートの不陸によるレベル誤差を吸収するために、長辺側のフランジの上端をレベルに合わせて切りそろえる。そして、最下段の耐蝕パネルを長辺側のフランジに重ね、固定ねじで固定する。
【0033】
その際、横方向に隣接する最下段の耐蝕パネル間の目地部に鉛直方向に沿って設置される裏当て部材の下端部を、耐蝕パネルの下端部と立上がりとの重ね幅だけ短くしておくことで、最下段の耐蝕パネルを設置する際に、立上がり部の上端部に裏当て部材の下端部を接する状態で設置することができ、耐蝕パネルの設置作業が容易になる。
【0035】
この場合、耐蝕パネルどうしの平面、出隅部および入り隅部の各接合部(目地部)、さらにベースコンクリートからの立上がり部にシール材を充填し、その上にライニングをおこなう。この場合のライニングは、耐蝕パネルの表層を形成するビニルエステル樹脂FRPと同じ、厚さ2mmのビニルエステル樹脂FRPでおこなう。
【0036】
その施工手順としては、接合部を入念に清掃した後、ライニングをおこなう範囲の全面にプライマーを塗布し、その上にガラス繊維マットとサーフェスマットを複数、各層ごとにビニルエステル樹脂を塗布して相互の一体化を図りながら順次重ねる。
【0037】
特に、耐蝕パネルどうしの平面接合部においては、例えば図1(a),(b)に図示するように、耐蝕パネルは裏当て部材に所定の目地幅を確保して固定し、この目地部分に耐蝕シール材を充填し、さらに目地部に耐蝕ライニングを施すことにより、目地部分を二重の耐蝕処理構造とすることができる。
【0038】
また、耐蝕パネルどうしの入り隅接合部においては、例えば図2(a),(b)に図示するように、耐蝕パネルどうしを間隔を設けず、突き合わせ状態で裏当て部材に接合し、入り隅部分に耐蝕シール材を概賂三角形状に両方のパネルにまたがるように充填し、さらにその上から目地部に耐蝕ライニングを施すことにより、目地部分を二重の耐蝕処理構造とすることができる。
【0039】
また、耐蝕ライニングには補強のためにガラス繊維マットを使用するのが通常であるが、このように入り隅部に概略三角形状で耐蝕シール材を充填することによりガラス繊維が鋭角に折れ曲がることがなくなる。
【0040】
また、耐蝕パネルどうしの出隅接合部においては、例えば図3(a),(b)に図示するように、耐蝕パネルどうしを裏面が接する状態で裏当て部材に接合し、耐蝕パネルの小口部分にできる三角形状部分に耐蝕シール材を充填した後に、目地部の耐蝕ライニングを施すことにより、目地部分を二重の耐蝕構造とすることができる。
【0041】
こうすることで、出隅部も入り隅部と同様に耐蝕ライニングとしてのガラス繊維マットが鋭角に折れ曲がることがなくなる。
さらに、最下端の耐蝕パネルの立上がり部においては、例えば図4(a),(b)に図示するように、耐蝕パネルの最下端の小口と立上がり部と裏当て板との間に三角形状に耐蝕シール材を充填し、その上から耐蝕ライニングを施すことにより、二重の耐蝕処理構造とすることができる。
【0042】
【発明の実施の形態】
図1(a),(b)は耐蝕パネルどうしの平面接合部の実施例を示し、この場合の裏当て部材1としては、例えば発泡ポリスチレン製で厚さ6mmの帯状の平板を使用する。
【0043】
また、先に設置される先施工の耐蝕パネル2Aと後から設置される後施工の耐蝕パネル2Bを裏当て部材1に固定するのには、接着材および/または木ねじあるいはスクリューねじ等の固定ねじ3(以下「固定ねじ3」と略す)を使用する。
【0044】
このため、裏当て部材1は固定ねじ3が貫通でき、しかもねじがつぶれないで耐蝕パネル2Aと2Bを裏当て部材1側に引き寄せる硬さを保持できるものがよい。
【0045】
このような条件を満たすために、発泡ポリスチレンからなるものを裏当て部材1として使用する。また裏当て部材1は、先施工の耐蝕パネル2Aの端部に接着材および/または固定ねじ3で固定しておき、所定の目地間隔を空けて後施工の耐蝕パネル2Bを設置し、かつその端部を固定ねじ3で裏当て部材1に固定する。
【0046】
目地部の処理は、目地部の空隙に耐蝕シール材4を充填した後に、二枚の耐蝕パネル2Aと2B間にまたがるように耐蝕ライニング5を施す。これによって耐蝕パネル2Aと2B間の目地部は耐蝕シール材4と耐蝕ライニング5によって二重にカバーされたことになる。
【0047】
図2(a),(b)は耐蝕パネルどうしの入り隅接合部の実施例をし、この場合の裏当て部材1としては、発泡ポリスチレン製で厚さ6mmの断面ほぼ等辺山形状(L字状)に形成されたものを使用する。
【0048】
先施工の耐蝕パネル2Aの端部に裏当て部材1を、耐蝕パネル2Aの外側面に裏当て部材1の一方のフランジ1aの内側面を当接させて固定する。
また、後施工の耐蝕パネル2Bの端部を裏当て部材1に、耐蝕パネル2Bの端面を耐蝕パネル2Aの表面に当接させ、かつ耐蝕パネル2Bの裏面を裏当て部材1の他方のフランジ1bの内側面に当接させて固定する。
【0049】
この場合、裏当て部材1の一方のフランジ1aを耐蝕パネル2Aの端部に、他方のフランジ1bを耐蝕パネル2Bの端部に接着材または固定ねじ3によってそれぞれ固定する。
【0050】
さらに、耐蝕パネル2Aと2Bとの接合部に耐蝕シール材4を三角形状をなすように充填し、その上から目地部の耐蝕ライニング5を施す。これにより、耐蝕パネル2Aと2Bとの入り隅接合部は、耐蝕シール材4と耐蝕ライニング5によって二重にカバーされたことになる。
【0051】
図3(a),(b)は耐蝕パネルどうしの出隅接合部の実施例をし、この場合の裏当て部材1としても、例えば発泡ポリスチレン製で厚さ6mmの断面ほぼ等辺山形状(L字状)に形成されたものを使用する。
【0052】
先施工の耐蝕パネル2Aの裏面端部に裏当て部材1の一方のフランジ1aの外側面を当接させて固定する。また、後施工の耐蝕パネル2Bの裏面端部を裏当て部材1の他方のフランジ1bの外側面に当接させて固定する。
【0053】
この場合、耐蝕パネル2Aと2Bの端部どうしを裏当て部材1の稜線部1cの上で突き合わせ、また裏当て部材1の一方のフランジ1aを耐蝕パネル2Aの端部に、他方のフランジ1bを耐蝕パネル2Bの端部に固定ねじ3によってそれぞれ固定する。
【0054】
また、目地部の処理は、二枚の耐蝕パネル2Aと2Bの端部を覆うように三角形状の空隙を耐蝕シール材4で充填し、その上から目地部の耐蝕ライニング5を施す。これにより、耐蝕パネル2Aと2Bの接合部は、耐蝕シール材4と耐蝕ライニング5によって二重にカバーされることになる。
【0055】
図4(a),(b)は最下端の耐蝕パネルの立上り部の実施例を示し、この場合の裏当て部材1としては、例えば発泡ポリスチレン製で厚さ6mmの断面ほぼ不等辺山形状(L字状)に形成されたものを使用する。
【0056】
裏当て部材1は、べースコンクリート6の上に短辺側のフランジ(以下「水平部」という)1aを固定ねじ3で固定し、長辺側のフランジ(以下「立ち部」という)1bを垂直に立ち上げて設置する。
【0057】
その際、べースコンクリート6のレベル誤差を吸収するために、立上がり部1bの上端部をべースコンクリート6のレベルに合わせて同じレベルになるように切り揃える。そして、耐蝕パネル2Cの裏面下端部を立上がり部1bの外側面に当接させ、耐蝕パネル2Cの下端部を立上がり部1bに固定ねじ3によって固定する。
【0058】
その際、横方向に隣接する耐蝕パネル2C,2C間の目地部に、鉛直方向に設置される裏当て部材1Aの下端部を、耐蝕パネル2Cの下端部と立上がり1bとの重ね幅Wだけ短くしておくことで、耐蝕パネル2Cを設置する際に、レベルに合わせて切りそろえられた立上がり部1bの上端部に裏当て部材1Aの下端部を接する状態で設置すると、耐蝕パネル2Cの設置作業が容易になる。なおこの場合、耐蝕パネル2Cの下端部にスペーサー7を介在してもよい。
【0059】
また、立上がり部の目地処理は、耐蝕パネル2Cの最下端の小口と立上がり部1bとの間に耐蝕シール材4を三角形状に充填し、その上から耐蝕ライニング5を施すことにより、二重の耐蝕処理構造になる。
【0060】
上記のように裏当て部材を用いて耐蝕パネルどうしを接合したので、桟木を必要とせず、また耐蝕パネルに釘を打つ必要もない。また、このように組み立てられた耐蝕パネルは通常の支保工によって固定するだけでコンクリートを打設でき、さらにコンクリートが硬化した後に耐蝕パルネを撤去する際に、支保工だけを解体すればよいので、コンクリート打設後の作業が極めて簡略化される。
【0061】
【発明の効果】
本発明により、耐蝕パネルを裏当て部材に固定ねじ等で固定するだけで、耐蝕パネルを組み立てることができるため、耐蝕パネルの組立て時間が短縮され、またコンクリート硬化後の型枠解体作業も、支保工の解体だけでよいので、後工程の時間も短縮された。
【0062】
また、桟木などの材木を一切使用しないで耐蝕パネルを組み立てることができるので、建設に伴う南洋材の使用もなくなり、地球環境の保護にも大きく貢献できる。
【0063】
耐蝕パネルどうしの接合部(目地部)の後処理は、目地部分に耐蝕シールを施した後に、その上から目地部を覆うように耐蝕ライニングを施すことにより、目地部分の耐蝕処理構造が二重構造になり、現場作業による欠陥の発生率を著しく引き下げることができる。
【図面の簡単な説明】
【図1】コンクリート用型枠として設置された耐蝕パネルどうしの平面接合部を示し、(a)はその一部斜視図、(b)はその横断面図である。
【図2】コンクリート用型枠として設置された耐蝕パネルどうしの入り隅接合部を示し、(a)はその一部斜視図、(b)はその横断面図である。
【図3】コンクリート用型枠として設置された耐蝕パネルどうしの出隅接合部を示し、(a)はその一部斜視図、(b)はその横断面図である。
【図4】コンクリート用型枠として設置された耐蝕パネル立上がり部を示し、(a)はその一部斜視図、(b)はその縦断面図である。
【符号の説明】
1 裏当て部材
1a フランジ、水平部
1b フランジ、立上がり部
2A 先施工の耐蝕パネル
2B 後施工の耐蝕パネル
2C 最下端の耐蝕パネル
3 固定ねじ(木ねじあるいはスクリューねじ等)
4 耐蝕シール材
5 耐蝕ライニング
6 べースコンクリート
7 スペーサ
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a corrosion treatment method (including anticorrosion treatment, the same shall apply hereinafter) on the surface of a concrete frame forming a treatment water tank such as a sewage treatment plant or a sewage treatment plant, or a plating layer or an ultrapure tank, particularly a corrosion resistance using a corrosion resistant panel. It relates to the processing method.
[0002]
More specifically, the present invention relates to a corrosion-resistant treatment method for a joint portion (joint portion) between corrosion-resistant panels in a plane portion, an entrance corner portion, and an exit corner portion of a water tank side wall portion, a column portion, a beam portion, and an upper floor slab portion. It is about improvement.
[0003]
[Prior art]
When a water tank such as a sewage treatment plant is formed of a concrete structure, protect the concrete structure from sulfuric acid produced by the action of hydrogen sulfide generated from sewage and bacteria that oxidize it (sulfur oxidation bacteria). Since it is necessary to secure and maintain the service life, it is indispensable to treat the surface of the concrete structure.
[0004]
Conventionally, as a corrosion-resistant construction method that has been generally carried out, a method of applying or spraying a corrosion-resistant material to the concrete surface after construction of a concrete structure or a method of attaching a corrosion-resistant sheet is known.
[0005]
However, the above-mentioned corrosion-resistant construction method has a long construction period and lacks long-term reliability and effectiveness of the corrosion-resistant treatment, labor management to secure workers, quality control and quality assurance due to worker skill gaps There was also a problem.
[0006]
As means for solving the above-mentioned problem, for example, Japanese Patent Publication No. 2772919 (hereinafter referred to as “the first invention”) discloses a corrosion-resistant construction method using a corrosion-resistant panel.
[0007]
Patent Publication No. 3060201 (hereinafter referred to as “the second invention”) does not use any nails for assembling the corrosion-resistant panel at the side wall portion (rising wall portion), and further requires a carpenter to assemble. A “nail-less construction method” is not disclosed.
[0008]
[Problems to be solved by the invention]
In the corrosion-resistant treatment construction method of the first invention, carpenter work to attach and fix the corrosion-resistant panel to the pier by nailing, and carpenter work to tie the corrosion-resistant panel piers together by nailing when assembling the formwork device, are indispensable. In addition to securing carpenter craftsmen, the above carpenter work is very troublesome and time consuming.
[0009]
In addition, when the formwork device is dismantled, a large number of nails that have fixed the pier are exposed on the trace after the pier is removed. It is indispensable to remove all of them.
[0010]
In addition, a cutting machine for excising the nail must be prepared, and the cutting operation of the nail is troublesome and troublesome as the number of nails increases. Furthermore, there is a great risk of damaging the corrosion resistant panel during the operation of cutting the nail.
[0011]
In the corrosion-resistant construction method of the second invention, the method of fixing the panel to the pier without using nails is shown for the side wall of the aquarium (rising wall), but it still takes time to remove the pier after the concrete has hardened Since there is no effective method for the corners and corners of pillars and beams, carpenters are required to assemble the corrosion-resistant panels, and the problem has not been completely solved. .
[0012]
Therefore, the first problem is "to assemble a corrosion-resistant panel without using materials such as piers that require dismantling and unloading when the support work is dismantled after the concrete is hardened."
[0013]
In addition, in the corrosion-resistant construction method using a corrosion-resistant panel, the corrosion-resistant panel body is generally manufactured in a factory, and is manufactured in a more controlled environment than the normal construction site, and when it is delivered to the site In terms of quality control, it is possible to eliminate inferior products with a corrosion-resistant method of construction on site.
[0014]
However, the joint portion between the corrosion-resistant panels, that is, the joint portion is left as the only portion to be constructed on site, and there is a possibility that a defect may occur in the joint portion when the construction management is not sufficiently performed.
[0015]
Moreover, since the corrosion resistance treatment of the joint portion in the first invention and the second invention uses a method of applying a corrosion-resistant lining using the same resin material as the surface of the corrosion-resistant panel between the corrosion-resistant panels, Although it can be said that the reliability is higher than the adhesion performance of the material, in the unlikely event that the adhesion performance of the corrosion resistant lining is impaired, the corrosion resistance performance of that portion will be significantly impaired.
[0016]
For this reason, it is almost impossible to reduce the occurrence of defects in field construction, and it is desirable to reduce the probability of occurrence of defects by providing two or more protective layers at the joint. Therefore, the second problem is “to make the corrosion resistant structure of the joint part a double structure”.
[0017]
The present invention has been made to solve the above-mentioned problems. In particular, when dismantling the support work, the corrosion-resistant panel can be assembled without using materials such as piers that require dismantling and unloading. It is an object of the present invention to provide a corrosion-resistant treatment method for the surface of a concrete frame that can reliably perform the corrosion-resistant treatment of the joint portions (joint portions).
[0018]
[Means for Solving the Problems]
The method of surface corrosion treatment of a concrete frame according to claim 1 is a method of corrosion resistance treatment of the surface of a concrete frame in which the surface of the concrete frame is subjected to corrosion treatment by a plurality of corrosion resistant panels, and is applied to the surface of the pre-construction corrosion-resistant panel to be attached first. The end portion of the post-construction corrosion-resistant panel attached from above is abutted, and a backing member having a substantially mountain-shaped cross section is formed on the back side of the corner joint portion composed of the pre-construction corrosion-resistant panel and the post-construction corrosion-resistant panel. One flange is fixed to the end of the pre-construction corrosion-resistant panel, and the other flange is fixed to the end of the post-construction corrosion-resistant panel. Fill the sealant into a triangular shape and attach a corrosion-resistant lining material on the corrosion-resistant sealant and the corrosion-resistant panels on both sides of the sealant. The one in which the features.
[0019]
The backing member is extruded from a foamable resin material such as foamed polystyrene. For example, in flat joints such as walls, a strip-shaped flat plate is used, and has an angle such as an entrance corner, an exit corner, or a rise. In the joined portion, a backing member having a predetermined angle and having a substantially equal side or unequal side mountain shape (L shape) is used so as to easily follow the shape of these portions.
[0020]
In addition, as a corrosion-resistant panel, a vinyl ester resin FRP (thickness of about 2 mm) is used as a reinforcing layer on the surface layer, a lightweight epoxy resin mortar (about 9 mm thick) is used as a middle layer, and an epoxy is used as a reinforcing layer on the back layer of the concrete frame. A resin FRP (thickness of about 1 mm) is disposed, and those formed as a three-layer panel in which these layers are completely integrated are used.
[0021]
The corrosion-resistant panel formed in this way is almost the same in thickness and weight as a normal formwork plywood, has the same strength as a normal formwork plywood, and the surface layer and back layer have anticorrosion performance. ing. Also, a plurality of anchor pieces made of ABS, for example, are provided at predetermined intervals on the surface of the back layer so as to be integrated with the frame concrete.
[0022]
At the time of construction, a corrosion-resistant panel is formed in the same manner as a normal mold plywood, concrete is cast, and after the concrete is cast, only the support work is dismantled leaving the corrosion-resistant panel.
[0023]
When forming a corrosion-resistant panel, a plurality of corrosion-resistant panels are joined as much as possible to make a large-sized panel, thereby shortening the process of forming the mold at the current position and saving labor.
[0024]
In particular, at the joint between corrosion-resistant panels, a backing member is joined in advance to the back end of the pre-installed corrosion-resistant panel that is attached first, and the post-installed corrosion-resistant panel that is attached later is used as the backing member. Then, fix with a predetermined interval between the pre-construction corrosion-resistant panel.
[0025]
In this case, the corrosion-resistant panel and the backing member are joined with an adhesive and / or a fixing screw, and wood screws, screw screws or the like are used as the fixing screws (hereinafter referred to as “fixing screws”).
[0026]
As a result, the corrosion-resistant panel of the pre-construction and the corrosion-resistant panel of the post-construction are firmly joined by the backing member, and the backing member is joined to the concrete placing surface, and forms a concrete embedding formwork together with the corrosion-resistant panel. Therefore, it is not necessary to dismantle and remove after concrete hardening.
[0027]
In this case, since the backing member is joined to the corrosion-resistant panel with the fixing screw as described above, the fixing screw penetrates, and after the fixing screw penetrates, the strength is sufficient to draw the panel and join without gaps. Therefore, it is preferable to use as the backing member a foamed resin having excellent corrosion resistance at a predetermined magnification.
[0028]
In addition, since it is usual to assemble a plurality of corrosion-resistant panels side by side at a flat joint such as a wall, it is desirable to provide a joint (gap) of about 10 mm between the panels in order to absorb construction errors.
[0029]
Also, when fixing the corrosion-resistant panel to the backing member with the fixing screw, if you try to penetrate the fixing screw too close to the edge of the corrosion-resistant panel, the corrosion-resistant panel may be lost. Therefore, the width of the backing member needs to be determined in consideration of the joint width, the edge opening of the fixing screw construction, construction errors, and the like.
[0030]
The method of surface corrosion treatment of a concrete frame according to claim 2 is a method of corrosion resistance treatment of the surface of a concrete frame in which the surface of the concrete frame is subjected to corrosion treatment with a plurality of corrosion-resistant panels, and is attached to a pre-installed corrosion-resistant panel and attached later. The end portions of the post-construction corrosion-resistant panels are brought into contact with each other, and a backing member having a substantially mountain-shaped cross section is placed on the back side of the protruding corner joint composed of the pre-construction corrosion-resistant panel and the post-construction corrosion-resistant panel. The flange is fixed to the end of the pre-construction corrosion-resistant panel and the other flange is fixed to the end of the post-construction corrosion-resistant panel, and attached to the joint between the pre-construction corrosion-resistant panel and the post-construction corrosion-resistant panel. Corrosion-resistant sealing material is filled so as to cover the edge of the panel and post-installed corrosion-resistant panel, and the corrosion-resistant sealant on both sides of the corrosion-resistant sealing material and the corrosion-resistant sealing material It is characterized in that the attachment of the corrosion-resistant lining material on the panel.
In the protruding corners and entering corners such as columns and walls, the cross section is substantially equilaterally mountain-shaped (L-shaped) bent in advance at a predetermined angle (in particular, the angle is not limited, but is usually a right angle) by an extrusion method or the like. By using the formed backing member, the corrosion-resistant panels can be joined to each other.
[0031]
Also, at the rising edge from the base concrete, the backing member is formed in an uneven mountain shape, and the flange on the short side (horizontal part) is nailed to the base concrete with concrete nails, etc. Raise the flange (rising part) and install.
[0032]
In addition, in order to absorb the level error due to the unevenness of the base concrete, the upper end of the flange on the long side is trimmed to the level. Then, the lowermost corrosion-resistant panel is overlaid on the flange on the long side and fixed with a fixing screw.
[0033]
At that time, the lower end of the backing member installed along the vertical direction at the joint between the bottommost corrosion-resistant panels adjacent in the horizontal direction is shortened by the overlapping width of the lower end of the corrosion-resistant panel and the rising edge. Thus, when the lowermost corrosion-resistant panel is installed, it can be installed in a state where the lower end portion of the backing member is in contact with the upper end portion of the rising portion, and the installation work of the corrosion-resistant panel is facilitated.
[0035]
In this case, the sealing material is filled in the joints (joint portions) of the flat surfaces of the corrosion-resistant panels, the protruding corner portions and the entering corner portions, and the rising portions from the base concrete, and the lining is performed thereon. In this case, the lining is performed with a vinyl ester resin FRP having a thickness of 2 mm, which is the same as the vinyl ester resin FRP forming the surface layer of the corrosion-resistant panel.
[0036]
As the construction procedure, after carefully cleaning the joints, apply a primer to the entire surface of the lining area, apply a plurality of glass fiber mats and surface mats, and apply vinyl ester resin to each layer. Are piled up sequentially while trying to integrate.
[0037]
In particular, in the flat joint between the corrosion-resistant panels, for example, as shown in FIGS. 1A and 1B, the corrosion-resistant panel is secured to the backing member with a predetermined joint width, and is fixed to the joint portion. By filling the joint portion with a corrosion-resistant sealing material and applying a corrosion-resistant lining to the joint portion, the joint portion can have a double corrosion-resistant structure.
[0038]
In addition, in the corner joining portion between the corrosion-resistant panels, as shown in FIGS. 2A and 2B, for example, the corrosion-resistant panels are joined to the backing member in a butted state without providing a gap between the corners. By filling the part with a corrosion-resistant sealing material in a generally triangular shape so as to extend over both panels, and further applying a corrosion-resistant lining to the joint from above, the joint part can be made into a double corrosion-resistant structure.
[0039]
In addition, glass fiber mats are usually used for reinforcement in corrosion-resistant linings, but glass fibers can be bent at acute angles by filling the corners with a corrosion-resistant sealing material in a generally triangular shape. Disappear.
[0040]
Further, in the corner joint portion between the corrosion-resistant panels, for example, as shown in FIGS. 3A and 3B, the corrosion-resistant panels are joined to the backing member in a state where the back surfaces are in contact with each other. After filling the formed triangular portion with the corrosion-resistant sealing material, the joint portion can be formed into a double corrosion-resistant structure by applying a corrosion-resistant lining to the joint portion.
[0041]
By doing so, the glass fiber mat as the corrosion-resistant lining is prevented from being bent at an acute angle in the same manner as the entering corner portion at the protruding corner portion.
Further, in the rising portion of the corrosion-resistant panel at the lowermost end, for example, as shown in FIGS. 4A and 4B, a triangular shape is formed between the lowermost edge of the corrosion-resistant panel, the rising portion, and the backing plate. By filling a corrosion-resistant sealing material and applying a corrosion-resistant lining thereon, a double corrosion-resistant structure can be obtained.
[0042]
DETAILED DESCRIPTION OF THE INVENTION
FIGS. 1A and 1B show an embodiment of a flat joint portion between corrosion-resistant panels. In this case, as a backing member 1, for example, a strip-shaped flat plate made of expanded polystyrene and having a thickness of 6 mm is used.
[0043]
Further, in order to fix the pre-installed corrosion-resistant panel 2A installed first and the post-installed corrosion-resistant panel 2B installed later to the backing member 1, a fixing screw such as an adhesive and / or a wood screw or a screw screw is used. 3 (hereinafter abbreviated as “fixing screw 3”).
[0044]
For this reason, it is preferable that the backing member 1 can hold the hardness that allows the fixing screws 3 to pass therethrough and that does not crush the corrosion-resistant panels 2A and 2B toward the backing member 1 side.
[0045]
In order to satisfy such a condition, a material made of expanded polystyrene is used as the backing member 1. Further, the backing member 1 is fixed to the end portion of the pre-construction corrosion-resistant panel 2A with an adhesive and / or a fixing screw 3, and a post-construction corrosion-resistant panel 2B is installed with a predetermined joint interval, and The end is fixed to the backing member 1 with a fixing screw 3.
[0046]
In the treatment of the joint portion, the corrosion-resistant sealing material 4 is filled in the joint portion, and then the corrosion-resistant lining 5 is applied so as to straddle the two corrosion-resistant panels 2A and 2B. As a result, the joint between the corrosion-resistant panels 2A and 2B is double-covered by the corrosion-resistant sealing material 4 and the corrosion-resistant lining 5.
[0047]
2 (a) and 2 (b) show an example of a corner joint portion between corrosion-resistant panels. In this case, the backing member 1 is made of expanded polystyrene and has a substantially equilateral mountain shape (L-shape) having a thickness of 6 mm. ) Is used.
[0048]
The backing member 1 is fixed to the end portion of the corrosion-resistant panel 2A that has been previously constructed, and the inner surface of one flange 1a of the backing member 1 is fixed to the outer surface of the corrosion-resistant panel 2A.
In addition, the end portion of the post-construction corrosion-resistant panel 2B is brought into contact with the backing member 1, the end surface of the corrosion-resistant panel 2B is brought into contact with the surface of the corrosion-resistant panel 2A, and the back surface of the corrosion-resistant panel 2B is placed on the other flange 1b of the backing member 1 It is fixed in contact with the inner surface of the.
[0049]
In this case, one flange 1a of the backing member 1 is fixed to the end of the corrosion-resistant panel 2A, and the other flange 1b is fixed to the end of the corrosion-resistant panel 2B by an adhesive or a fixing screw 3, respectively.
[0050]
Furthermore, the corrosion-resistant sealing material 4 is filled in a triangular shape at the joint between the corrosion-resistant panels 2A and 2B, and a corrosion-resistant lining 5 is applied to the joint from above. As a result, the corner joint portion between the corrosion-resistant panels 2A and 2B is double-covered by the corrosion-resistant sealing material 4 and the corrosion-resistant lining 5.
[0051]
3 (a) and 3 (b) show an embodiment of the corner joint portion between the corrosion-resistant panels, and the backing member 1 in this case is also made of, for example, foamed polystyrene and has a substantially equilateral mountain shape (L) having a thickness of 6 mm. Use the one formed in a letter shape.
[0052]
The outer surface of one flange 1a of the backing member 1 is brought into contact with and fixed to the rear surface end of the corrosion-resistant panel 2A that has been previously constructed. Further, the rear end portion of the post-construction corrosion-resistant panel 2 </ b> B is brought into contact with and fixed to the outer surface of the other flange 1 b of the backing member 1.
[0053]
In this case, the end portions of the corrosion-resistant panels 2A and 2B are abutted on the ridge line portion 1c of the backing member 1, one flange 1a of the backing member 1 is placed at the end of the corrosion-resistant panel 2A, and the other flange 1b is placed. It fixes to the edge part of the corrosion-resistant panel 2B with the fixing screw 3, respectively.
[0054]
Further, the joint portion is treated by filling a triangular gap with the corrosion-resistant sealing material 4 so as to cover the end portions of the two corrosion-resistant panels 2A and 2B, and applying a corrosion-resistant lining 5 on the joint portion from above. As a result, the joint between the corrosion-resistant panels 2 </ b> A and 2 </ b> B is double-covered by the corrosion-resistant sealing material 4 and the corrosion-resistant lining 5.
[0055]
4 (a) and 4 (b) show an example of the rising portion of the corrosion-resistant panel at the lowermost end. In this case, the backing member 1 is made of, for example, foamed polystyrene and has a 6 mm-thick cross-sectionally substantially uneven mountain shape ( L-shaped) is used.
[0056]
The backing member 1 has a short-side flange (hereinafter referred to as “horizontal portion”) 1 a fixed on the base concrete 6 with a fixing screw 3, and a long-side flange (hereinafter referred to as “standing portion”) 1 b. Is installed vertically.
[0057]
At that time, in order to absorb the level error of the base concrete 6, the upper end portion of the rising portion 1 b is trimmed so as to be the same level according to the level of the base concrete 6. Then, the lower end of the back surface of the corrosion-resistant panel 2C is brought into contact with the outer surface of the rising portion 1b, and the lower end of the corrosion-resistant panel 2C is fixed to the rising portion 1b with the fixing screw 3.
[0058]
At that time, the lower end portion of the backing member 1A installed in the vertical direction is shortened by the overlapping width W between the lower end portion of the corrosion resistant panel 2C and the rise 1b at the joint between the corrosion resistant panels 2C and 2C adjacent in the horizontal direction. Thus, when installing the corrosion resistant panel 2C, if the lower end portion of the backing member 1A is in contact with the upper end portion of the rising portion 1b cut according to the level, the installation work of the corrosion resistant panel 2C is performed. It becomes easy. In this case, a spacer 7 may be interposed at the lower end of the corrosion resistant panel 2C.
[0059]
Further, the joint treatment of the rising portion is performed by filling the corrosion-resistant sealing material 4 in a triangular shape between the bottom edge of the corrosion-resistant panel 2C and the rising portion 1b, and then applying the corrosion-resistant lining 5 from the top. Corrosion-resistant structure.
[0060]
Since the corrosion-resistant panels are joined to each other using the backing member as described above, there is no need for a pier and no need to nail the corrosion-resistant panel. In addition, the corrosion-resistant panel assembled in this way can be cast concrete by simply fixing it by ordinary support work, and when removing the corrosion-resistant parnet after the concrete has hardened, it is only necessary to dismantle the support work. Work after placing concrete is greatly simplified.
[0061]
【The invention's effect】
According to the present invention, the corrosion-resistant panel can be assembled simply by fixing the corrosion-resistant panel to the backing member with a fixing screw or the like. Therefore, the assembly time of the corrosion-resistant panel is shortened, and the formwork disassembly work after the concrete is hardened is also supported. Since only the dismantling of the work is required, the time for the post-process was shortened.
[0062]
In addition, corrosion-resistant panels can be assembled without using any timber such as piers, which eliminates the use of southern sea materials associated with construction, greatly contributing to the protection of the global environment.
[0063]
The post-treatment of the joints (joint parts) between the corrosion-resistant panels is to provide a corrosion resistant treatment structure for the joint part by applying a corrosion-resistant seal to the joint part and then applying a corrosion-resistant lining to cover the joint part. It becomes a structure, and the incidence of defects due to field work can be significantly reduced.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 shows a planar joint between corrosion-resistant panels installed as a concrete formwork, in which (a) is a partial perspective view and (b) is a transverse sectional view thereof.
FIGS. 2A and 2B show a corner joint portion between corrosion-resistant panels installed as a concrete mold, FIG. 2A is a partial perspective view thereof, and FIG. 2B is a cross-sectional view thereof.
FIGS. 3A and 3B show a corner joint of corrosion-resistant panels installed as a concrete formwork, in which FIG. 3A is a partial perspective view and FIG. 3B is a cross-sectional view thereof.
4A and 4B show a corrosion-resistant panel rising portion installed as a concrete formwork, in which FIG. 4A is a partial perspective view and FIG. 4B is a longitudinal sectional view thereof.
[Explanation of symbols]
1 Backing member 1a Flange, horizontal part 1b Flange, rising part 2A Corrosion-resistant panel 2B for pre-construction Corrosion-resistant panel 2C for post-construction Corrosion-resistant panel 3 at the bottom end 3 Fixing screw (wood screw or screw screw, etc.)
4 Corrosion-resistant sealant 5 Corrosion-resistant lining 6 Base concrete 7 Spacer

Claims (2)

コンクリート躯体の表面を複数の耐蝕パネルによって耐蝕処理するコンクリート躯体表面の耐蝕処理工法であって、先に取り付けられる先施工耐蝕パネルの表面に後から取り付けられる後施工耐蝕パネルの端部を当接し、当該先施工耐蝕パネルと後施工耐蝕パネルとからなる入り隅接合部の裏側に、断面ほぼ山形状の裏当て部材を、当該裏当て部材の一方のフランジを前記先施工耐蝕パネルの端部に、他方のフランジを前記後施工耐蝕パネルの端部にそれぞれ固定して取り付け、前記先施工耐蝕パネルと前記後施工耐蝕パネルとの接合部に耐蝕シール材を三角形状をなすように充填し、当該耐蝕シール材および当該耐蝕シール材の両側の耐蝕パネルの上に耐蝕ライニング材を取り付けることを特徴とするコンクリート躯体の表面処理工法。 It is a corrosion-resistant construction method for the surface of a concrete body that is subjected to corrosion treatment with a plurality of corrosion-resistant panels on the surface of the concrete body, abutting the end portion of the post-construction corrosion-resistant panel that is attached later to the surface of the pre-construction corrosion-resistant panel that is attached first, On the back side of the corner joint portion composed of the pre-construction corrosion-resistant panel and the post-construction corrosion-resistant panel, a backing member having a substantially mountain-shaped cross section, one flange of the backing member at the end of the pre-construction corrosion-resistant panel, The other flange is fixedly attached to the end portion of the post-construction corrosion-resistant panel, and the joint portion between the pre-construction corrosion-resistant panel and the post-construction corrosion-resistant panel is filled with a corrosion-resistant sealing material so as to form a triangle shape. A surface treatment method for a concrete frame, characterized in that a corrosion-resistant lining material is attached on a sealing material and a corrosion-resistant panel on both sides of the corrosion-resistant sealing material . コンクリート躯体の表面を複数の耐蝕パネルによって耐蝕処理するコンクリート躯体表面の耐蝕処理工法であって、先に取り付けられる先施工耐蝕パネルと後から取り付けられる後施工耐蝕パネルの端部どうしを突き合わせ、当該先施工耐蝕パネルと後施工耐蝕パネルとからなる出隅接合部の裏側に、断面ほぼ山形状の裏当て部材を、当該裏当て部材の一方のフランジを前記先施工耐蝕パネルの端部に、他方のフランジを前記後施工耐蝕パネルの端部にそれぞれ固定して取り付け、当該先施工耐蝕パネルと後施工耐蝕パネルとの接合部に当該先施工耐蝕パネルおよび後施工耐蝕パネルの端部を覆うように耐食シール材を充填し、当該耐蝕シール材および当該耐蝕シール材の両側の耐蝕パネルの上に耐蝕ライニング材を取り付けることを特徴とするコンクリート躯体の表面処理工法。 Corrosion-resistant construction method for the surface of a concrete frame, in which the surface of the concrete frame is corroded with a plurality of corrosion-resistant panels. On the back side of the projected corner joint composed of the construction corrosion-resistant panel and the post-construction corrosion-resistant panel, a backing member having a substantially mountain-shaped cross section, one flange of the backing member at the end of the previous construction corrosion-resistant panel, the other The flange is fixed and attached to the end of the post-installation corrosion-resistant panel, and the joint between the pre-construction corrosion-resistant panel and the post-construction corrosion-resistant panel covers the end of the pre-construction corrosion-resistant panel and post-construction corrosion-resistant panel. the sealing material is filled, and wherein the attaching corrosion lining material on both sides of the corrosion panels of the corrosion sealing material and the corrosion-resistant sealing material Surface treatment method of the concrete skeleton that.
JP2000378617A 2000-12-13 2000-12-13 Corrosion-resistant treatment method for concrete frame surface Expired - Fee Related JP4030717B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000378617A JP4030717B2 (en) 2000-12-13 2000-12-13 Corrosion-resistant treatment method for concrete frame surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000378617A JP4030717B2 (en) 2000-12-13 2000-12-13 Corrosion-resistant treatment method for concrete frame surface

Publications (2)

Publication Number Publication Date
JP2002178445A JP2002178445A (en) 2002-06-26
JP4030717B2 true JP4030717B2 (en) 2008-01-09

Family

ID=18847153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000378617A Expired - Fee Related JP4030717B2 (en) 2000-12-13 2000-12-13 Corrosion-resistant treatment method for concrete frame surface

Country Status (1)

Country Link
JP (1) JP4030717B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4564816B2 (en) * 2004-10-06 2010-10-20 株式会社大林組 Embedded formwork and manufacturing method thereof
JP4530978B2 (en) * 2005-11-30 2010-08-25 シーアイ化成株式会社 Repair panel, water channel structure using the panel, and construction method thereof
JP5847544B2 (en) * 2011-11-08 2016-01-27 英昭 山岸 Water stop member for corner, water stop installation method, and water stop
KR101731873B1 (en) * 2016-07-27 2017-05-11 (주)재인비엔피 Structure constructing lining member for concrete water tank
CN115506332A (en) * 2022-10-13 2022-12-23 江苏申江环境科技有限公司 Anticorrosion process for glass fiber reinforced plastic with humidity

Also Published As

Publication number Publication date
JP2002178445A (en) 2002-06-26

Similar Documents

Publication Publication Date Title
US20010037533A1 (en) Composite deck system and method of construction
JP4018740B2 (en) Formwork method for interior / exterior material foundation formwork panel and concrete structure
JP5080191B2 (en) Exterior wall construction structure
JP4030717B2 (en) Corrosion-resistant treatment method for concrete frame surface
EP1660733B1 (en) Rainscreen apparatus and method
JP2000336944A (en) High-durable structure buried type formwork method
JP2004308130A (en) Reinforcing method for concrete structure
JP7470243B1 (en) Composite beams and methods for constructing composite beams
JPH08246546A (en) Work execution method and structure of concrete body wall fitted with lining panel
JP2571177B2 (en) Corrosion protection method for concrete floor and wall surface, and precast plate with anchor used for this method
JPH09209582A (en) Reinforcing structural body and reinforcing method for structure with it
JP4097028B2 (en) How to repair polygonal column structures
JP2001073552A (en) Cement paste stop member for concrete form
KR200296951Y1 (en) Deck panel for reinforced concrete slab
JPH09137496A (en) Panel for placing concrete, improvement of inside face of concrete wall by use thereof and construction method of concrete structure
JPS60126448A (en) Crack inducing structure of concrete structure
KR20040017560A (en) Deck panel for reinforced concrete slab
KR200296952Y1 (en) Deck panel for reinforced concrete slab
JPH1150466A (en) Forming method of column leg part form and member for sheathing connection of the column leg form
JP3615524B2 (en) Peeling protection structure and protection method for concrete frame surface
JPH08333827A (en) Panel for building, panel press fitting, and supporter for panel or the like
JP4132408B2 (en) Roof repair method
JP2540457B2 (en) Heat insulation construction method
Monroe et al. Precast Concrete Parking Structures
JP2023117254A (en) Method of manufacturing concrete structure

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20040427

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20060606

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20060807

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20070313

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070514

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20071016

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20071017

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

Ref document number: 4030717

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101026

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131026

Year of fee payment: 6

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313117

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees