JPS6325031B2 - - Google Patents
Info
- Publication number
- JPS6325031B2 JPS6325031B2 JP58235861A JP23586183A JPS6325031B2 JP S6325031 B2 JPS6325031 B2 JP S6325031B2 JP 58235861 A JP58235861 A JP 58235861A JP 23586183 A JP23586183 A JP 23586183A JP S6325031 B2 JPS6325031 B2 JP S6325031B2
- Authority
- JP
- Japan
- Prior art keywords
- isocyanate compound
- waterproof layer
- base
- water
- waterproofing
- 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
- 239000012948 isocyanate Substances 0.000 claims description 19
- 238000004078 waterproofing Methods 0.000 claims description 13
- -1 isocyanate compound Chemical class 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 230000002209 hydrophobic effect Effects 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 2
- 230000003301 hydrolyzing effect Effects 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 239000002585 base Substances 0.000 description 15
- 239000010426 asphalt Substances 0.000 description 10
- 238000010276 construction Methods 0.000 description 7
- 150000002513 isocyanates Chemical class 0.000 description 7
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 5
- 229940125782 compound 2 Drugs 0.000 description 5
- 238000005187 foaming Methods 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 2
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 2
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
- UAIVFDJJMVMUGY-UHFFFAOYSA-N 1,2,4-trimethylpiperazine Chemical compound CC1CN(C)CCN1C UAIVFDJJMVMUGY-UHFFFAOYSA-N 0.000 description 1
- RTTZISZSHSCFRH-UHFFFAOYSA-N 1,3-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=CC(CN=C=O)=C1 RTTZISZSHSCFRH-UHFFFAOYSA-N 0.000 description 1
- VGHSXKTVMPXHNG-UHFFFAOYSA-N 1,3-diisocyanatobenzene Chemical compound O=C=NC1=CC=CC(N=C=O)=C1 VGHSXKTVMPXHNG-UHFFFAOYSA-N 0.000 description 1
- OHLKMGYGBHFODF-UHFFFAOYSA-N 1,4-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=C(CN=C=O)C=C1 OHLKMGYGBHFODF-UHFFFAOYSA-N 0.000 description 1
- OCJBOOLMMGQPQU-UHFFFAOYSA-N 1,4-dichlorobenzene Chemical compound ClC1=CC=C(Cl)C=C1 OCJBOOLMMGQPQU-UHFFFAOYSA-N 0.000 description 1
- SBJCUZQNHOLYMD-UHFFFAOYSA-N 1,5-Naphthalene diisocyanate Chemical compound C1=CC=C2C(N=C=O)=CC=CC2=C1N=C=O SBJCUZQNHOLYMD-UHFFFAOYSA-N 0.000 description 1
- ICLCCFKUSALICQ-UHFFFAOYSA-N 1-isocyanato-4-(4-isocyanato-3-methylphenyl)-2-methylbenzene Chemical compound C1=C(N=C=O)C(C)=CC(C=2C=C(C)C(N=C=O)=CC=2)=C1 ICLCCFKUSALICQ-UHFFFAOYSA-N 0.000 description 1
- SVONRAPFKPVNKG-UHFFFAOYSA-N 2-ethoxyethyl acetate Chemical compound CCOCCOC(C)=O SVONRAPFKPVNKG-UHFFFAOYSA-N 0.000 description 1
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- HVCNXQOWACZAFN-UHFFFAOYSA-N 4-ethylmorpholine Chemical compound CCN1CCOCC1 HVCNXQOWACZAFN-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- 229920000538 Poly[(phenyl isocyanate)-co-formaldehyde] Polymers 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 150000001350 alkyl halides Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- ZFMQKOWCDKKBIF-UHFFFAOYSA-N bis(3,5-difluorophenyl)phosphane Chemical compound FC1=CC(F)=CC(PC=2C=C(F)C=C(F)C=2)=C1 ZFMQKOWCDKKBIF-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229940117389 dichlorobenzene Drugs 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- XXBDWLFCJWSEKW-UHFFFAOYSA-N dimethylbenzylamine Chemical compound CN(C)CC1=CC=CC=C1 XXBDWLFCJWSEKW-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- YWFWDNVOPHGWMX-UHFFFAOYSA-N n,n-dimethyldodecan-1-amine Chemical compound CCCCCCCCCCCCN(C)C YWFWDNVOPHGWMX-UHFFFAOYSA-N 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- RJSZFSOFYVMDIC-UHFFFAOYSA-N tert-butyl n,n-dimethylcarbamate Chemical compound CN(C)C(=O)OC(C)(C)C RJSZFSOFYVMDIC-UHFFFAOYSA-N 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Description
【発明の詳細な説明】
本発明は、建築物の屋根やベランダ、壁、床、
地下壁などの下地に防水層を施工する防水工法に
関する。[Detailed Description of the Invention] The present invention is applicable to roofs, balconies, walls, floors, etc. of buildings.
Concerning a waterproofing method for constructing a waterproof layer on the base of underground walls, etc.
上記防水層を施工するに、従来では、屋根スラ
ブなどの下地に、防水材を直接塗布していた。 Conventionally, to construct the above-mentioned waterproof layer, a waterproofing material was applied directly to a base such as a roof slab.
ところが、降雨，降雪などに起因して下地に水
分が含まれ、その乾燥が不十分な場合に、下地に
対するプライマーの付着が悪く、防水層の施工後
にふくれを生じ、特に、屋上防水などのような露
出防水にあつては、上記ふくれが日間の温度変化
によつて大きさが変化しやすく、防水層の疲労・
劣化やふくれの範囲拡大を招き、耐久性が低い欠
点があつた。 However, if the substrate contains moisture due to rain, snowfall, etc. and is not sufficiently dried, the primer will not adhere well to the substrate, causing blisters after the waterproofing layer is applied, especially in cases such as rooftop waterproofing. In the case of exposed waterproofing, the size of the blisters described above tends to change due to daily temperature changes, causing fatigue and fatigue of the waterproofing layer.
This resulted in deterioration and expansion of the area of blistering, resulting in low durability.
また、立上がりその他防水層の張り仕舞などで
は端部の固定が悪くなつて漏水を生じる欠点があ
つた。 In addition, there was a drawback that the end portions were not fixed properly when the waterproof layer was raised or when the waterproof layer was tensioned, resulting in water leakage.
本発明は、上記の点に鑑み、下地が未乾燥状態
であるにかかわらず、水分による悪影響を受ける
こと無く、防水層を良好に施工できるようにし
て、工期の短縮化などを図ることを目的とする。 In view of the above points, an object of the present invention is to shorten the construction period by making it possible to successfully construct a waterproof layer without being adversely affected by moisture, regardless of whether the base is in an undried state. shall be.
本発明による下地に対する防水工法は、上記目
的を達成するために、水分が滲出する未乾燥状態
の下地の外表面に、水との反応により独立気泡群
を生成する疎水性加水反応型イソシアネート化合
物を塗布して防水層を形成することを特徴とす
る。 In order to achieve the above object, the waterproofing method for a substrate according to the present invention applies a hydrophobic hydrolytic isocyanate compound that generates closed cell groups by reaction with water to the outer surface of an undried substrate from which water leaches. It is characterized by being applied to form a waterproof layer.
即ち、未乾燥状態の下地の外表面にイソシアネ
ート化合物を塗布して発泡反応させ、下地の外表
面側の水分による悪影響を受けること無く、むし
ろ、それら水分を反応に有効利用して防水層を施
工するのである。 In other words, an isocyanate compound is applied to the outer surface of the undried base to cause a foaming reaction, and the waterproof layer is constructed by effectively utilizing the moisture in the reaction without being adversely affected by moisture on the outer surface of the base. That's what I do.
したがつて、下地の外表面の乾燥が不十分であ
つても、プライマーのふくれ発生、並びに、それ
らに伴う耐久性低下や漏水を確実に回避でき、下
地の外表面が未乾燥状態のままで防水層を良好に
施工できるようになつた。その結果、例えば、従
来であれば、防水層を良好に塗布するためには、
下地の外表面を十分に乾燥させる必要があり、特
に、屋上防水のような露出防水の場合に、降雨や
降雪などに起因して施工開始が遅れがちで工期が
長くなる欠点があつたが、本発明によれば、下地
の外表面の乾燥完了を待つことなく施工できて、
工期の大幅な短縮を図れる。 Therefore, even if the outer surface of the base is insufficiently dried, it is possible to reliably avoid blistering of the primer, as well as the resulting decrease in durability and water leakage, and the outer surface of the base remains undried. The waterproof layer can now be installed successfully. As a result, for example, in the past, in order to successfully apply a waterproof layer,
It is necessary to thoroughly dry the outer surface of the base, and in particular, in the case of exposed waterproofing such as rooftop waterproofing, the start of construction tends to be delayed due to rain or snowfall, which has the disadvantage of prolonging the construction period. According to the present invention, construction can be carried out without waiting for the completion of drying of the outer surface of the base,
The construction period can be significantly shortened.
上記イソシアネート化合物は、Ｒ−（NCO）ｎ
なる一般式で示されるもの、または、これと活性
水素含有化合物との反応によつて得られるもの
で、水と反応して炭酸ガスを発生しながら重合
し、独立気泡群を有する状態で水に不溶のゲル状
高分子物を生成する一群の物質である。 The above isocyanate compound is R-(NCO)n
or those obtained by the reaction of this with an active hydrogen-containing compound.They react with water, polymerize while generating carbon dioxide gas, and react with water in a state with closed cell groups. A group of substances that produce insoluble gel-like polymers.
上記一般式において、Ｒは、脂肪族または芳香
族の基、あるいは、その両者を含む有機基を示
し、また、ｎは２以上の整数であることが望まし
い。そして、本発明に使用されるイソシアネート
の代表的なものは次に例示するようなものであ
る。つまり、２，４−トリレンジイソシアネー
ト、２，６−トリレンジイソシアネート、２，４
−および２，６−トリレンジイソシアネートの混
合体、４，４−ジフエニルメタンジイソシアネー
ト、１，５−ナフチレンジイソシアネート、ポリ
メチレンポリフエニルイソシアネート、ビトリレ
ンジイソシアネート、ｍ−フエニレンジイソシア
ネート、１，６−ヘキサメチレンジイソシアネー
ト、ｏ−あるいはｍ−あるいはｐ−キシリレンジ
イソシアネート、メチレンビス−ｐ−フエニレン
ジイソシアネート、２，６−ジイソシアネートメ
チルカプエート等の、芳香族又は脂肪族のポリイ
ソシアネート、または、それらのイソシアネート
とポリエステルグライコールまたはポリエーテル
グライコール等の活性水素を含むポリオールとか
ら誘導される末端イソシアネート基含有プレポリ
マーである。 In the above general formula, R represents an aliphatic or aromatic group, or an organic group containing both, and n is preferably an integer of 2 or more. Typical isocyanates used in the present invention are exemplified below. That is, 2,4-tolylene diisocyanate, 2,6-tolylene diisocyanate, 2,4-tolylene diisocyanate,
- and 2,6-tolylene diisocyanate, 4,4-diphenylmethane diisocyanate, 1,5-naphthylene diisocyanate, polymethylene polyphenyl isocyanate, bitolylene diisocyanate, m-phenylene diisocyanate, 1,6 - Aromatic or aliphatic polyisocyanates, such as hexamethylene diisocyanate, o- or m- or p-xylylene diisocyanate, methylene bis-p-phenylene diisocyanate, 2,6-diisocyanate methyl capate, or isocyanates thereof. and a polyol containing active hydrogen such as polyester glycol or polyether glycol.
また、上記イソシアネート化合物に対して、例
えばベンゾール、キシロール、トリオール、アセ
トン、メチルエチルケトン、酢酸エチル、トリク
ロルエチレン、ジブチルフタレート、ジオクチル
フタレート、ジオクチルアジペート、トリクレジ
ルフオスフエート等の稀釈剤、または、例えばシ
リコーン系非イオン型等の界面活性剤、またはそ
の他の添加物等、適当な薬剤を適当量加えてもよ
い。 Furthermore, diluents such as benzole, xylol, triol, acetone, methyl ethyl ketone, ethyl acetate, trichlorethylene, dibutyl phthalate, dioctyl phthalate, dioctyl adipate, tricresyl phosphate, etc., or silicone An appropriate amount of an appropriate agent such as a nonionic surfactant or other additives may be added.
上述の各種イソシアネート化合物に対して、そ
の固化反応促進触媒として例えばトリエチルアミ
ン、Ｎメチルモルホリン、Ｎエチルモルホリン、
ジメチルベンジルアミン、トリエチレンジアミ
ン、Ｎ，N′−ジメチル−２−メチルピペラジン、
ジメチルラウリルアミン、ジメチルココナツツア
ミン等の第３級アミン類、あるいはジブチル錫ラ
ウレート、スタナスオクテートなどの有機金属化
合物等を含む薬剤を加えても良い。 For the above-mentioned various isocyanate compounds, examples of catalysts for promoting the solidification reaction include triethylamine, N-methylmorpholine, N-ethylmorpholine,
Dimethylbenzylamine, triethylenediamine, N,N'-dimethyl-2-methylpiperazine,
Agents containing tertiary amines such as dimethyl laurylamine and dimethyl coconut amine, or organometallic compounds such as dibutyltin laurate and stannath octate may be added.
また、上記イソシアネート化合物において、強
化剤として砂やセメントなどを混入するものでも
良い。 Moreover, in the above-mentioned isocyanate compound, sand, cement, etc. may be mixed as a reinforcing agent.
本発明に使用されるイソシアネート化合物は液
状のものが望ましいが、そのもの自体が固体であ
つても使用された状態において溶剤により稀釈さ
れるかまたは分散されて液状になれば良い。使用
される溶剤としてはイソシアネート基と反応する
基を持たないもので且つ水を含まない芳香族炭化
水素類、脂肪族炭化水素類、ケトン類、エステル
類、エーテル類、ハロゲン化アルキル類等が使用
され、具体例としてベンゼン、トルエン、キシレ
ン、アセトン、メチルエチルケトン、酢酸エチ
ル、酢酸ブチル、セロソルブアセテート、トリク
ロルエチレン、ジクロルメタン、ジクロルベンゼ
ン等が挙げられる。 The isocyanate compound used in the present invention is preferably in a liquid form, but even if it itself is solid, it may be diluted or dispersed with a solvent to become liquid in the state in which it is used. The solvent used is aromatic hydrocarbons, aliphatic hydrocarbons, ketones, esters, ethers, alkyl halides, etc. that do not have groups that react with isocyanate groups and do not contain water. Specific examples include benzene, toluene, xylene, acetone, methyl ethyl ketone, ethyl acetate, butyl acetate, cellosolve acetate, trichloroethylene, dichloromethane, dichlorobenzene and the like.
以下、本発明工法の実施例を例示図に基いて詳
述する。 Hereinafter, examples of the construction method of the present invention will be described in detail based on illustrative drawings.
床スラブなどのRCスラブや屋根スラブなどの
未乾燥状態の下地１の外表面に、疎水性加水反応
型イソシアネート化合物を塗布し、水の反応によ
り独立気泡群を生成させた状態で固化させる。 A hydrophobic hydroreactive isocyanate compound is applied to the outer surface of an undried base 1 such as an RC slab such as a floor slab or a roof slab, and is solidified in a state in which closed cell groups are generated by reaction with water.
発泡反応固化後のイソシアネート化合物２の外
表面にアスフアルトプライマーを塗布し、かつ、
そのアスフアルトプライマーの外表面にアスフア
ルト３を塗布し、イソシアネート化合物２とアス
フアルト３とにより防水層４を形成施工する。 Applying an asphalt primer to the outer surface of the isocyanate compound 2 after the foaming reaction and solidification, and
Asphalt 3 is applied to the outer surface of the asphalt primer, and a waterproof layer 4 is formed from the isocyanate compound 2 and asphalt 3.
上記イソシアネート化合物の発泡反応は、下地
に含まれる水分や大気中の水分との加水反応によ
つて行われ、通常、５〜60分で固化されるが、そ
の加水反応を促進するために、イソシアネート化
合物の塗布に際して、スプレーなどにより水を噴
霧供給しても良い。 The foaming reaction of the above-mentioned isocyanate compound is carried out by a hydrolysis reaction with moisture contained in the base or moisture in the atmosphere, and is usually solidified in 5 to 60 minutes. When applying the compound, water may be supplied by spraying or the like.
上記防水層４の施工のために、アスフアルトプ
ライマーの外表面にアスフアルトを塗布する場合
において、アスフアルトの塗布と、アスフアルト
ルーフイングなどの各種ルーフイングを貼り付
け、それらを積層するようにしても良い。 When asphalt is applied to the outer surface of the asphalt primer in order to construct the waterproof layer 4, asphalt may be applied and various types of roofing such as asphalt roofing may be applied and laminated.
また、防水層４を施工するに、下地１の種類や
用途によつては、アスフアルトに限らず、加硫ゴ
ム系、非加硫ゴム系、塩化ビニル樹脂系、エチレ
ン樹脂系などの各種の材料を適用できる。 In addition, depending on the type and purpose of the base 1, when constructing the waterproof layer 4, various materials such as not only asphalt but also vulcanized rubber, non-vulcanized rubber, vinyl chloride resin, ethylene resin, etc. may be used. can be applied.
上述実施例によれば、発泡反応後のイソシアネ
ート化合物２において、表面はつやのある不透水
膜となつており、また全体が弾力性及び保温性を
有し、防水層４としての防水機能を十分生かせな
がら高い断熱効果も有し、更に、下地に亀裂が生
じてもその弾力性故にイソシアネート化合物２が
亀裂に追随して止水を図り、アスフアルト３への
悪影響を回避できて耐久性を一層向上できる利点
を有している。 According to the above embodiment, the surface of the isocyanate compound 2 after the foaming reaction becomes a glossy water-impermeable film, and the whole has elasticity and heat retention properties, so that the waterproof function as the waterproof layer 4 can be fully utilized. However, it also has a high heat insulating effect, and even if cracks occur in the base, due to its elasticity, isocyanate compound 2 will follow the cracks and stop water, avoiding adverse effects on asphalt 3 and further improving durability. It has advantages.
本発明としては、下地１に対して上記イソシア
ネート化合物を塗布して発泡反応固化させ、その
固化されたイソシアネート化合物２のみによつて
防水層４を形成するものでも良い。 In the present invention, the above-mentioned isocyanate compound may be applied to the base 1 and solidified through a foaming reaction, and the waterproof layer 4 may be formed only by the solidified isocyanate compound 2.
図面は本発明の下地に対する防水工法に係る実
施例を示し、第１図は防水層施工状態の断面図、
第２図は第１図の要部の拡大断面図である。
１……下地、４……防水層。
The drawings show an embodiment of the waterproofing method for the base of the present invention, and FIG. 1 is a cross-sectional view of the waterproof layer construction state;
FIG. 2 is an enlarged sectional view of the main part of FIG. 1. 1... Base layer, 4... Waterproof layer.
Claims (1)
に、水との反応により独立気泡群を生成する疎水
性加水反応型イソシアネート化合物を塗布して防
水層４を形成することを特徴とする下地に対する
防水工法。 ２ 前記イソシアネート化合物に砂が混入されて
いる特許請求の範囲第１項に記載の下地に対する
防水工法。 ３ 前記イソシアネート化合物にセメントが混入
されている特許請求の範囲第１項または第２項に
記載の下地に対する防水工法。[Scope of Claims] 1. A waterproof layer 4 is formed by coating the outer surface of the base 1 in an undried state from which water oozes out with a hydrophobic hydrolytic isocyanate compound that generates closed cell groups by reaction with water. A waterproofing method for foundations that is characterized by: 2. The waterproofing method for a substrate according to claim 1, wherein sand is mixed in the isocyanate compound. 3. The waterproofing method for a substrate according to claim 1 or 2, wherein cement is mixed in the isocyanate compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23586183A JPS60127375A (en) | 1983-12-14 | 1983-12-14 | Waterproofing for primer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23586183A JPS60127375A (en) | 1983-12-14 | 1983-12-14 | Waterproofing for primer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60127375A JPS60127375A (en) | 1985-07-08 |
| JPS6325031B2 true JPS6325031B2 (en) | 1988-05-24 |
Family
ID=16992333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23586183A Granted JPS60127375A (en) | 1983-12-14 | 1983-12-14 | Waterproofing for primer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60127375A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0294634U (en) * | 1989-01-17 | 1990-07-27 | ||
| JP3015924U (en) * | 1995-03-17 | 1995-09-19 | 株式会社レメックスジャパン | Desk for computer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH086051B2 (en) * | 1987-08-10 | 1996-01-24 | 菊水化学工業株式会社 | Main material composition for multi-layer finish coating material containing fine bubbles |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5876464A (en) * | 1981-10-30 | 1983-05-09 | Mitui Toatsu Chem Inc | Pressurized one-package polyurethane coating and coating method using the same |
-
1983
- 1983-12-14 JP JP23586183A patent/JPS60127375A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5876464A (en) * | 1981-10-30 | 1983-05-09 | Mitui Toatsu Chem Inc | Pressurized one-package polyurethane coating and coating method using the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0294634U (en) * | 1989-01-17 | 1990-07-27 | ||
| JP3015924U (en) * | 1995-03-17 | 1995-09-19 | 株式会社レメックスジャパン | Desk for computer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60127375A (en) | 1985-07-08 |
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