JPS646151B2 - - Google Patents
Info
- Publication number
- JPS646151B2 JPS646151B2 JP16183381A JP16183381A JPS646151B2 JP S646151 B2 JPS646151 B2 JP S646151B2 JP 16183381 A JP16183381 A JP 16183381A JP 16183381 A JP16183381 A JP 16183381A JP S646151 B2 JPS646151 B2 JP S646151B2
- Authority
- JP
- Japan
- Prior art keywords
- cement
- waterproofing
- waterproofing agent
- epoxy
- calcium
- 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
Links
- 238000004078 waterproofing Methods 0.000 claims description 37
- 239000003795 chemical substances by application Substances 0.000 claims description 24
- 239000004568 cement Substances 0.000 claims description 22
- 239000004593 Epoxy Substances 0.000 claims description 12
- 239000011575 calcium Substances 0.000 claims description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 6
- 229910052791 calcium Inorganic materials 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000013078 crystal Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 238000000576 coating method Methods 0.000 description 3
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- 235000012241 calcium silicate Nutrition 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 229910004283 SiO 4 Inorganic materials 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000002384 drinking water standard Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Aftertreatments Of Artificial And Natural Stones (AREA)
- Building Environments (AREA)
Description
【発明の詳細な説明】
本発明は、防水施工方法に関する。更に詳しく
は、セメント構造物またはセメント製品などのカ
ルシウム分を含有する材料の表面に適用される防
水施工方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a waterproofing method. More specifically, the present invention relates to a waterproofing method applied to the surface of a material containing calcium such as a cement structure or a cement product.
現在、セメント構造物（コンクリート構造物）、
特に水と接触するセメント構造物の壁面などの防
水目的のために用いられているものとして、エポ
キシ系の防水剤がある。ところで、このエポキシ
系防水剤は、表面の仕上り状態がよく、見た目に
もきれいであるが、施工上では壁面に水分が付着
していると接着性が悪いという欠点がみられる。
更に、凹凸のある壁面の場合には、壁面を平滑化
し、ピンホールを埋めるために下塗りとしてパテ
塗りが行われるが、この作業が施工上相当な労力
を費すことになる。このパテ塗りの上にエポキシ
系防水剤が塗布されることになるが、防水性能を
十分に確保するために、この高価な防水剤をある
程度以上の厚みを持たせて塗布させなければなら
ず、これはコストの上昇を招くことになる。 Currently, cement structures (concrete structures),
Epoxy-based waterproofing agents are used particularly for the purpose of waterproofing walls of cement structures that come into contact with water. By the way, this epoxy waterproofing agent has a good surface finish and looks beautiful, but it has the disadvantage that it has poor adhesion when moisture adheres to the wall surface during construction.
Furthermore, in the case of an uneven wall surface, putty is applied as an undercoat to smooth the wall surface and fill in pinholes, but this work requires a considerable amount of construction work. An epoxy waterproofing agent will be applied over this putty coating, but in order to ensure sufficient waterproofing performance, this expensive waterproofing agent must be applied to a certain thickness. This will lead to an increase in costs.
本発明者は、防水性能を損うことがないという
前提の下に、施工性にすぐれかつコストを低減し
得るエポキシ系防水剤による防水施工方法につい
て種々検討の結果、セメント構造物またはセメン
ト製品の表面にセメント成分中のカルシウム分と
反応して結晶体を形成するSiO2を主成分として
含有するセメント系無機質浸透性防水剤を塗布
し、形成された下地防水層上にエポキシ系の防水
剤を塗布する方法が、前記目的を十分に達成し得
ることを見出し、本発明を完成させることができ
た。下地防水剤として使用されるセメント成分中
のカルシウム分と反応して結晶体を形成する無機
成分を含有するセメント系無機質浸透性防水剤と
しては、例えば西独ハイデイ社の製品“ハイデ
イ”などが用いられる。この下地防水剤の塗布
は、セメント構造物（コンクリート構造物）また
はセメント製品（主としてコンクリート製品）の
表面に、粘度約10000〜20000cpsの水性液として、
はけ塗り、コテ塗り、吹付けなど一般に用いられ
る方法によつて塗布され、乾燥させて、そこに防
水層を形成させることによつて行われる。この
際、この防水剤中には、接着効果をあげて乾燥、
温度変化などによる剥離を防止するために、樹脂
エマルジヨンを添加して用いることもできる。 The present inventor has conducted various studies on waterproofing methods using epoxy waterproofing agents, which have excellent workability and can reduce costs, on the premise that waterproofing performance is not impaired. A cement-based inorganic penetrating waterproofing agent containing SiO 2 as a main component, which reacts with calcium in the cement component to form crystals, is applied to the surface, and an epoxy-based waterproofing agent is applied on the formed base waterproofing layer. It has been discovered that the coating method can fully achieve the above object, and the present invention has been completed. An example of a cement-based inorganic penetrating waterproofing agent containing an inorganic component that reacts with calcium in the cement component to form crystals, which is used as a base waterproofing agent, is "Hiday", a product of West Germany's Hiday Company. . This base waterproofing agent is applied to the surface of cement structures (concrete structures) or cement products (mainly concrete products) as an aqueous liquid with a viscosity of approximately 10,000 to 20,000 cps.
It is applied by a commonly used method such as brushing, troweling, or spraying, and is dried to form a waterproof layer thereon. At this time, this waterproofing agent has an adhesive effect and dries.
In order to prevent peeling due to temperature changes, a resin emulsion may be added.
このセメント系無機質浸透性防水剤は、前記セ
メント構造物またはセメント製品、更にはレン
ガ、石材その他のカルシウム分を含有する材料な
どの適用個所において、凹凸、ピンホール、ひび
割れなどの欠陥個所に十分浸透し、そこでセメン
ト成分中のカルシウム分と反応してオルトけい酸
カルシウム（Ca2SiO4）、メタけい酸カルシウム
（Ca2SiO3）などの結晶体を形成し、前記欠陥個
所を十分に修正すると共に適用個所全般にわたつ
て防水層を形成させる。 This cement-based inorganic penetrating waterproofing agent sufficiently penetrates defects such as irregularities, pinholes, and cracks in the cement structures or cement products, as well as bricks, stones, and other calcium-containing materials. There, it reacts with the calcium content in the cement components to form crystals such as calcium orthosilicate (Ca 2 SiO 4 ) and calcium metasilicate (Ca 2 SiO 3 ), thereby sufficiently repairing the defective areas. Together with this, a waterproof layer is formed over the entire area where it is applied.
特に、かかる下地防水剤は、水と接触するセメ
ント構造物などエポキシ系防水剤の接着を受付け
ないような個所にも有効に適用され、従つて密室
の乾燥し難い場所、水を使用している既設の構造
物に適用した場合には短縮された工期ですばやく
補修を行なうことができ、また新設の構造物で
は、型枠をはずした直後に塗布することが可能で
あり、降雨などにより濡れた構造体を乾燥させる
待ち時間を必要とはしない。この点においても、
下地が濡れていると施工が非常に困難で、作業効
率の悪いパテ処理よりもすぐれている。しかも、
この防水剤は飲料水基準に合格しているので、配
水池、浄水池、ロ過沈澱池などの浄化施設に安全
に使用することができる。 In particular, such base waterproofing agents can be effectively applied to areas that do not accept adhesion of epoxy waterproofing agents, such as cement structures that come into contact with water, and are therefore suitable for use in closed rooms where it is difficult to dry, and where water is used. When applied to existing structures, it is possible to quickly repair with a shortened construction period, and for newly constructed structures, it can be applied immediately after removing the formwork, so it can be applied to No waiting period is required to dry the structure. In this respect as well,
It is superior to putty treatment, which is very difficult to apply when the base is wet and has low work efficiency. Moreover,
Since this waterproofing agent passes drinking water standards, it can be safely used in purification facilities such as distribution reservoirs, water purification ponds, and filtration ponds.
このようにして形成された下地防水層上に適用
されるエポキシ系防水剤の塗布は、従来法になら
つて行われる。その厚さは、下地防水剤約0.7〜
1.2mm（約0.7mm以下では薄すぎ、また約1.2mm以上
ではひび割れを生ずることがある）の上にエポキ
シ系防水剤を約0.1〜0.2mm程度の厚さで塗布すれ
ば、エポキシ系防水剤を約0.5mmの厚さで塗布し
たときと同等乃至それ以上の防水効果が得られ、
高価なエポキシ系防水剤の使用量が大幅に減少す
るので、コストの低下に著しく貢献することにな
る。そればかりではなく、エポキシ系防水剤の単
独使用の場合には、硬化後に構造体自体の変化に
追随しきれずにひび割れとか剥離現象などを生ず
ることがあるが、この下地防水剤を使用した場合
には、構造体などに良好に接着された下地防水層
が、硬化後も構造体などの変化に柔軟に対応して
緩衝体としての作用も果すので、ひび割れとか剥
離現象もある程度防止でき、例えば１ｍ当り0.2
mm程度の割れ幅に十分対応することができる。 The coating of the epoxy waterproofing agent on the base waterproofing layer thus formed is carried out according to a conventional method. The thickness of the base waterproofing agent is approximately 0.7 ~
If you apply an epoxy waterproofing agent to a thickness of about 0.1 to 0.2mm on top of 1.2mm (approximately 0.7mm or less is too thin, and more than approximately 1.2mm may cause cracks), the epoxy waterproofing agent A waterproofing effect equal to or greater than that obtained when applied with a thickness of approximately 0.5 mm is obtained.
Since the amount of expensive epoxy waterproofing agent used is significantly reduced, this will significantly contribute to lowering costs. Not only that, when an epoxy waterproofing agent is used alone, it may not be able to follow the changes in the structure itself after curing, resulting in cracking or peeling phenomena, but when this base waterproofing agent is used, The base waterproof layer, which is well adhered to the structure etc., flexibly responds to changes in the structure etc. even after curing and acts as a buffer, so cracking and peeling phenomena can be prevented to some extent. Hit 0.2
It can adequately handle crack widths on the order of mm.
このようにして行われる本発明の防水施工方法
は、セメント構造物のみならず、主としてコンク
リート製品よりなる各種のセメント製品にも、同
様に有効に適用することができる。 The waterproofing method of the present invention carried out in this manner can be effectively applied not only to cement structures but also to various cement products mainly made of concrete products.
Claims (1)
セメント成分中のカルシウム分と反応して結晶体
を形成するSiO2を主成分として含有するセメン
ト系無機質浸透性防水剤を塗布し、形成された下
地防水層上にエポキシ系の防水剤を塗布すること
を特徴とする防水施工方法。 ２ 水と接触するセメント構造物表面に適用され
る特許請求の範囲第１項記載の防水施工方法。[Claims] 1. A cement-based inorganic penetrating waterproofing agent containing SiO 2 as a main component that reacts with calcium in cement components to form crystals is applied to the surface of a cement structure or a cement product, A waterproofing construction method characterized by applying an epoxy waterproofing agent on the formed base waterproofing layer. 2. The waterproofing construction method according to claim 1, which is applied to the surface of a cement structure that comes into contact with water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16183381A JPS5864289A (en) | 1981-10-09 | 1981-10-09 | Waterproofing construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16183381A JPS5864289A (en) | 1981-10-09 | 1981-10-09 | Waterproofing construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5864289A JPS5864289A (en) | 1983-04-16 |
| JPS646151B2 true JPS646151B2 (en) | 1989-02-02 |
Family
ID=15742786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16183381A Granted JPS5864289A (en) | 1981-10-09 | 1981-10-09 | Waterproofing construction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5864289A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5834435B2 (en) * | 1979-07-03 | 1983-07-26 | 東洋ゴム工業株式会社 | Pretreatment method for cement mortar or concrete mortar coating |
-
1981
- 1981-10-09 JP JP16183381A patent/JPS5864289A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5864289A (en) | 1983-04-16 |
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