JPH04260676A - Technique for preventing corrosive metal material in inorganic cured product from rust - Google Patents
Technique for preventing corrosive metal material in inorganic cured product from rustInfo
- Publication number
- JPH04260676A JPH04260676A JP4058591A JP4058591A JPH04260676A JP H04260676 A JPH04260676 A JP H04260676A JP 4058591 A JP4058591 A JP 4058591A JP 4058591 A JP4058591 A JP 4058591A JP H04260676 A JPH04260676 A JP H04260676A
- Authority
- JP
- Japan
- Prior art keywords
- rust
- cement
- porous aggregate
- inorganic
- corrosive metal
- 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.)
- Granted
Links
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 239000007769 metal material Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims description 29
- 239000000203 mixture Substances 0.000 claims abstract description 102
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 56
- 230000003449 preventive effect Effects 0.000 claims abstract description 48
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 45
- -1 alkali metal salt Chemical class 0.000 claims abstract description 36
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 28
- 238000010521 absorption reaction Methods 0.000 claims abstract description 27
- 230000005484 gravity Effects 0.000 claims abstract description 10
- 239000004568 cement Substances 0.000 claims description 62
- 239000000463 material Substances 0.000 claims description 21
- 239000002245 particle Substances 0.000 claims description 14
- 238000010276 construction Methods 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 claims 1
- 230000035699 permeability Effects 0.000 abstract description 25
- 238000002156 mixing Methods 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 20
- 229910000831 Steel Inorganic materials 0.000 abstract description 8
- 239000010959 steel Substances 0.000 abstract description 8
- 239000011083 cement mortar Substances 0.000 abstract description 4
- 238000009472 formulation Methods 0.000 description 26
- 238000003756 stirring Methods 0.000 description 23
- 239000007864 aqueous solution Substances 0.000 description 19
- 239000000047 product Substances 0.000 description 15
- 239000011398 Portland cement Substances 0.000 description 13
- 230000008439 repair process Effects 0.000 description 12
- 239000008399 tap water Substances 0.000 description 12
- 235000020679 tap water Nutrition 0.000 description 12
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 11
- 239000004815 dispersion polymer Substances 0.000 description 11
- 230000002265 prevention Effects 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 10
- 229910010272 inorganic material Inorganic materials 0.000 description 9
- 239000011147 inorganic material Substances 0.000 description 9
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 description 9
- 230000007423 decrease Effects 0.000 description 8
- 239000000839 emulsion Substances 0.000 description 8
- 241001365009 Croton poecilanthus Species 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 239000008187 granular material Substances 0.000 description 7
- 229910052912 lithium silicate Inorganic materials 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 229910021536 Zeolite Inorganic materials 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 5
- 238000009418 renovation Methods 0.000 description 5
- 239000010457 zeolite Substances 0.000 description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 239000005977 Ethylene Substances 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- 239000011150 reinforced concrete Substances 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 229910017053 inorganic salt Inorganic materials 0.000 description 3
- IDNHOWMYUQKKTI-UHFFFAOYSA-M lithium nitrite Chemical compound [Li+].[O-]N=O IDNHOWMYUQKKTI-UHFFFAOYSA-M 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- RAFRTSDUWORDLA-UHFFFAOYSA-N phenyl 3-chloropropanoate Chemical compound ClCCC(=O)OC1=CC=CC=C1 RAFRTSDUWORDLA-UHFFFAOYSA-N 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 239000003522 acrylic cement Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 239000005306 natural glass Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000002940 repellent Effects 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 229910001583 allophane Inorganic materials 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 1
- JYIBXUUINYLWLR-UHFFFAOYSA-N aluminum;calcium;potassium;silicon;sodium;trihydrate Chemical compound O.O.O.[Na].[Al].[Si].[K].[Ca] JYIBXUUINYLWLR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical class OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 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
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 229910001603 clinoptilolite Inorganic materials 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 229910001679 gibbsite Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052909 inorganic silicate Inorganic materials 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 229910052680 mordenite Inorganic materials 0.000 description 1
- 150000002826 nitrites Chemical class 0.000 description 1
- 229940049964 oleate Drugs 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
Landscapes
- Aftertreatments Of Artificial And Natural Stones (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、補修或いは改修に際し
、特に躯体やラスモルタルの鋼材等を保護し、耐久性を
向上させることができる無機質硬化物中の腐食性金属材
料を防錆する工法に関する。さらに詳しくは、本発明に
おけるモルタル組成物を腐食性金属材料が埋め込まれた
コンクリートや軽量気泡コンクリート（ＡＬＣ）やラス
モルタルなどの表面または改修部分に塗着させることに
より、透水量、吸水量が少なく、且つ透湿性が高く、防
錆効果をも付与し、無機質硬化物の劣化を防止すること
ができるような無機質硬化物中の腐食性金属材料を防錆
する工法を提供するものである。[Industrial Application Field] The present invention is a method for rust-preventing corrosive metal materials in inorganic hardened materials, which can protect steel materials such as building blocks and lath mortar and improve durability during repair or renovation. Regarding. More specifically, by applying the mortar composition of the present invention to the surface or repaired parts of concrete in which corrosive metal materials are embedded, lightweight aerated concrete (ALC), lath mortar, etc., the amount of water permeation and water absorption can be reduced. The present invention provides a method for rust-preventing corrosive metal materials in inorganic cured materials, which has high moisture permeability, provides rust prevention effects, and can prevent deterioration of the inorganic cured materials.
【０００２】0002
【従来の技術】鉄筋コンクリート等の腐食性金属材料が
埋め込まれた無機質硬化物は、雨水の侵入などにより腐
食性金属材料に錆が発生すると、その体積膨張で無機質
硬化物に亀裂を発生させたり、破砕したりする。特に、
無機質硬化物中に高濃度の塩素イオンが混入している場
合、比較的容易に腐食性金属材料は腐食する。従来、上
記したような無機質硬化物中の腐食性金属材料を防錆す
る方法としては、例えば以下に列挙するような方法が開
示されている。■特開昭５５−７８７６４号公報には、
鉄筋コンクリートまたは無機質材の表面に水溶性ケイ酸
塩系化合物の溶液を塗布含浸させた後、セメントペース
トを被覆する方法が記載されている。■特開昭６０−２
０４６８３号公報には、鋼材を内蔵する無機質材の表面
に防錆効果を有する無機塩類の水溶液を塗布含浸させる
方法、さらにその後、セメント系組成物を上塗りする方
法が記載されている。■特開昭６０−２３１４７８号公
報には、鋼材を内蔵する無機質材の表面に防錆効果を有
する無機塩類の水溶液を塗布含浸させた後、水溶性ケイ
酸塩の水溶液を塗布する方法、さらにその後、セメント
系組成物を上塗りする方法などが記載されている。■特
開昭６２−７４０９０号公報には、鋼材を内蔵する無機
質材の表面に防錆効果を有する無機塩類の水溶液を塗布
含浸させた後、さらにシリコン系及び／またはシラン系
プライマーを上塗りする方法、さらにその後、塗料を上
塗りする方法などが記載されている。■特公平１−３５
７８８号公報には、ケイ酸リチウムを混合した防錆モル
タル及び防錆用塗料が記載されている。■特開平１−２
０１０８８号公報には、金属材を内蔵する無機質材の表
面に無機塩類及び／またはケイ酸塩化合物の水溶液を塗
布含浸させた後、有機チタネートを主成分とする処理剤
を塗布する方法が記載されている。■特開昭５７−２０
１４４４号公報には、建築物の表面にガラス転移点が０
℃以下の合成樹脂を含有する塗膜を形成する方法が記載
されている。■特開昭６１−１５８８８０号公報には、
鉄筋コンクリートに多価アルコール系ニトロエステルを
主成分とする防錆剤を塗布含浸させた後、ケイ酸リチウ
ム水溶液を塗布し、さらにシリコン系の浸透型撥水剤を
塗布する方法などが記載されている。■特開平１−２９
８１８５号公報には、鋼材を内蔵するコンクリートの表
面からケイ酸リチウムの水溶液を塗布含浸させた後、亜
硝酸カルシウムの水溶液を塗布含浸させる方法、さらに
その後、セメント系組成物を塗布する方法が記載されて
いる。[Prior Art] When a corrosive metal material such as reinforced concrete is embedded with an inorganic hardened material, when rust occurs in the corrosive metal material due to the intrusion of rainwater, the volume expansion causes cracks to occur in the inorganic hardened material. Crush it. especially,
When a high concentration of chlorine ions are mixed in the inorganic cured product, the corrosive metal material corrodes relatively easily. Conventionally, as methods for rust-preventing corrosive metal materials in inorganic cured products as described above, the following methods have been disclosed, for example. ■Unexamined Japanese Patent Publication No. 55-78764,
A method is described in which a solution of a water-soluble silicate compound is applied to the surface of reinforced concrete or an inorganic material to impregnate it, and then a cement paste is coated. ■Unexamined Japanese Patent Application 1986-2
Publication No. 04683 describes a method of coating and impregnating the surface of an inorganic material containing a steel material with an aqueous solution of an inorganic salt having a rust-preventing effect, and then a method of overcoating with a cement-based composition. ■Unexamined Japanese Patent Publication No. 60-231478 discloses a method of applying an aqueous solution of a water-soluble silicate to the surface of an inorganic material containing a steel material, and then applying an aqueous solution of an inorganic salt having a rust-preventing effect to the surface, and then applying an aqueous solution of a water-soluble silicate. The document describes a method of then overcoating with a cement-based composition. ■Japanese Unexamined Patent Publication No. 62-74090 discloses a method of applying and impregnating the surface of an inorganic material containing steel with an aqueous solution of inorganic salts having a rust-preventing effect, and then coating the surface with a silicone-based and/or silane-based primer. , and a method for applying a top coat of paint afterwards. ■Tokuho 1-35
No. 788 describes a rust-preventing mortar and a rust-preventing paint mixed with lithium silicate. ■Unexamined Publication Hei 1-2
Publication No. 01088 describes a method in which the surface of an inorganic material containing a metal material is coated and impregnated with an aqueous solution of an inorganic salt and/or silicate compound, and then a treatment agent containing an organic titanate as a main component is applied. ing. ■Unexamined Patent Publication 1986-20
Publication No. 1444 states that the surface of a building has a glass transition point of 0.
A method for forming a coating film containing a synthetic resin at a temperature of 0.degree. C. or less is described. ■Japanese Patent Application Laid-open No. 158880/1988 states that
It describes a method of applying and impregnating reinforced concrete with a rust preventive agent whose main component is polyhydric alcohol-based nitroester, then applying an aqueous lithium silicate solution, and then applying a silicone-based penetrating water repellent. . ■Unexamined Patent Publication Hei 1-29
Publication No. 8185 describes a method of coating and impregnating an aqueous solution of lithium silicate on the surface of concrete containing steel materials, then coating and impregnating an aqueous solution of calcium nitrite, and then further applying a cement-based composition. has been done.
【０００３】0003
【発明が解決しようとする課題】しかしながら、前記し
た■〜■の防錆方法のうち、■〜■，■〜■の方法は、
それぞれ無機質材の表面に、亜硝酸カルシウムなどの防
錆剤の水溶液、ケイ酸リチウムなどのアルカリ金属塩類
の水溶液の何れか一方または両方を塗布（含浸）するも
のであり、或いはその後、セメント系組成物を塗布する
ものであり、このような方法は、塗布量が不均一になり
、浸透量も不均一になるので、薬剤の拡散効果も不均一
となり、経時による防錆効果が低下してしまう。また、
処理工程数が多いので、施工工程が煩雑であり、施工時
間もまた長くなる。さらに、補修モルタル組成物の透湿
能力が低いため、無機質材内に結露水などが発生すると
、水分が無機質材外部に放散することなく内部にこもる
ので、防錆効果も半減してしまう。特に、■、■、■は
、シリコン系及び／またはシラン系プライマーや有機チ
タネートを主成分とする処理剤やシリコン系の浸透型撥
水剤や塗料を上塗りするので、上記した無機質材内部の
水分が外部に放散しにくいので、経時により防錆効果が
著しく低下する。[Problem to be Solved by the Invention] However, among the above-mentioned rust prevention methods, the methods of
The surface of each inorganic material is coated (impregnated) with either or both of an aqueous solution of a rust preventive agent such as calcium nitrite, an aqueous solution of an alkali metal salt such as lithium silicate, or a cement-based composition is then applied. This type of method results in uneven application amount and uneven penetration amount, resulting in uneven chemical diffusion effect and a decline in rust prevention effect over time. . Also,
Since the number of processing steps is large, the construction process is complicated and the construction time is also long. Furthermore, since the repair mortar composition has a low moisture permeability, if condensation water or the like occurs within the inorganic material, the moisture will remain inside the inorganic material without dissipating to the outside, and the rust prevention effect will be halved. In particular, ■, ■, and ■ are overcoated with silicone-based and/or silane-based primers, processing agents mainly composed of organic titanates, silicone-based penetrating water repellents, and paints, so the moisture inside the inorganic materials described above is Since it is difficult to dissipate to the outside, the rust prevention effect decreases significantly over time.
【０００４】また、前記した■の方法は、合成樹脂塗膜
を形成することにより建築物の表面にガスバリヤー性を
付与するものであり、上記した■〜■，■〜■と同様に
、建築物中に内在する水分が放散しにくいので、防錆効
果が充分ではない。[0004] In addition, the above-mentioned method (1) imparts gas barrier properties to the surface of the building by forming a synthetic resin coating film, and similarly to the above-mentioned methods (2) to (2) and (2) to (3), Since the moisture contained in the material is difficult to dissipate, the rust prevention effect is not sufficient.
【０００５】[0005]
【課題を解決するための手段】本発明は、上記に鑑み提
案されたもので、腐食性金属材料が埋め込まれた無機質
硬化物の表面に、粒度５〜０．０６ｍｍ，気乾嵩比重１
．５〜０．１，吸水率５００〜１５ｗｔ％の多孔質骨材
を配合してなるモルタル組成物を塗着させることを特徴
とする無機質硬化物中の腐食性金属材料を防錆する工法
に関するものである。また、上記した多孔質骨材には、
防錆剤若しくはアルカリ金属塩を内蔵させても良い。さ
らには、その表面にセメントを被覆させるようにしても
良い。[Means for Solving the Problems] The present invention has been proposed in view of the above-mentioned problems.
．． 5 to 0.1, and a method for rust-preventing corrosive metal materials in an inorganic cured material, characterized by applying a mortar composition containing porous aggregate with a water absorption rate of 500 to 15 wt%. It is. In addition, the above-mentioned porous aggregates include
A rust preventive agent or an alkali metal salt may be incorporated. Furthermore, the surface may be coated with cement.
【０００６】上記した本発明に使用する多孔質骨材は、
微細孔を有し、吸水性能があり、得られるモルタルの透
水性及び吸水性を低下させると共に、透湿性を向上させ
ることができるものである。[0006] The porous aggregate used in the present invention described above is
It has micropores and has water absorption performance, and can reduce the water permeability and water absorption of the obtained mortar, and improve the moisture permeability.
【０００７】このような多孔質骨材の粒度は、コテ塗り
作業性を考慮して、５〜０．０６ｍｍ、より好ましくは
２．５〜０．１ｍｍの範囲のものを使用する。The particle size of such porous aggregate is preferably in the range of 5 to 0.06 mm, more preferably 2.5 to 0.1 mm, taking into account the workability of troweling.
【０００８】また、気乾嵩比重は、１．５〜０．１のも
のを使用する。１．５以上になると、防錆剤の含浸吸着
能力が低くなり、得られるモルタルの透湿性は低下する
。また、０．１以下になると、得られるモルタルの強度
が低下し、透水性及び吸水性は高くなるので好ましくな
い。[0008] Also, the air-dried bulk specific gravity used is 1.5 to 0.1. If it exceeds 1.5, the impregnating and adsorbing ability of the rust preventive agent decreases, and the moisture permeability of the obtained mortar decreases. Further, if it is less than 0.1, the strength of the obtained mortar will decrease and the water permeability and water absorption will increase, which is not preferable.
【０００９】さらに、吸水率は、５００〜１５ｗｔ％の
ものを使用する。５００ｗｔ％以上になると、防錆剤及
びアルカリ金属塩の含浸吸着能力は高くなるが、得られ
るモルタルの強度が低下し、透水性及び吸水性は高くな
るので好ましくない。また、１５ｗｔ％以下になると、
防錆剤びアルカリ金属塩の含浸吸着能力が低くなり、得
られるモルタルの透湿性は低下する。[0009] Furthermore, the water absorption rate used is 500 to 15 wt%. If it exceeds 500 wt%, the impregnating and adsorbing ability of the rust preventive agent and the alkali metal salt will increase, but the strength of the obtained mortar will decrease and the water permeability and water absorption will increase, which is not preferable. Also, when it becomes less than 15wt%,
The impregnating and adsorbing ability of rust inhibitors and alkali metal salts decreases, and the moisture permeability of the resulting mortar decreases.
【００１０】上記した気乾嵩比重，吸水率の多孔質骨材
としては、天然ゼオライト（モルデナイト、クリノプチ
ロライト、ｘＭ（２／ｎ）Ｏ・Ａｌ２ Ｏ３ ・ｍＳｉ
Ｏ２ ・ｚＨ２ Ｏ）の破砕粒状物、顆粒品、造粒ペレ
ット品、造粒粒状物，アロフェン（Ａｌｌｏｐｈａｎｅ
，天然シリカアルミナゲル，Ａｌ２ Ｏ３ ・ｍＳｉ
Ｏ２ ・ｎＨ２ Ｏ＋Ａｌ（ＯＨ）３ ）の粒状品、顆
粒品，珪藻土造粒焼成粒子物，或いは凝灰岩系天然ガラ
ス焼成品，流紋岩系天然ガラス軽石，ケイ酸カルシウム
破砕粒子，発泡ガラス粒子，耐火レンガ破砕粒子，ＡＬ
Ｃ破砕粒子等を例示することができる。[0010] As the porous aggregate having the above air-dried bulk specific gravity and water absorption rate, natural zeolite (mordenite, clinoptilolite, xM(2/n)O.Al2O3.mSi) is used.
O2 ・zH2 O) crushed granules, granules, granulated pellets, granulated granules, Allophane
, natural silica alumina gel, Al2O3 ・mSi
O2 ・nH2 O+Al(OH)3 ) granular products, granular products, diatomaceous earth granulated and fired particles, or tuff-based natural glass fired products, rhyolite-based natural glass pumice, crushed calcium silicate particles, foamed glass particles, fireproof Brick crushed particles, AL
Examples include C crushed particles.
【００１１】本発明におけるモルタル組成物は、上記し
た多孔質骨材を配合したものであり、コテ塗り作業性が
良く、しかも透水性及び吸水性が低く、外部からの水の
浸入、例えば雨水などの浸入を抑制するので、鉄筋やラ
スモルタルの鋼材等の腐食性金属材料を防錆することが
できる。さらに、本発明におけるモルタル組成物は、透
湿性が高く、これを養生して得られる無機質硬化物内部
に水分を滞留させることがないので、黴や錆の発生を防
止することができる。The mortar composition of the present invention contains the porous aggregate described above, has good troweling workability, has low water permeability and water absorption, and is resistant to water intrusion from the outside, such as rainwater. Since it suppresses the infiltration of corrosive metal materials such as reinforcing bars and lath mortar steel materials, it is possible to prevent rust from corroding metal materials. Furthermore, the mortar composition of the present invention has high moisture permeability and does not allow moisture to remain inside the inorganic cured product obtained by curing it, so that mold and rust can be prevented from forming.
【００１２】また、本発明に使用する防錆剤は、ＪＩＳ
Ａ ６２０５「鉄筋コンクリート用防錆剤」に規
定されるようなものを使用することができ、例えば亜硝
酸カルシウム、亜硝酸ナトリウム等の亜硝酸塩や、ピル
オキシエチレンビスグリセロールポレイト、ポリオキシ
エチレンビスグリセロールポレイト・オレイト等のホウ
酸エステル、有機カルボン酸塩系などを挙げることがで
きる。[0012] Furthermore, the rust preventive used in the present invention is
Those specified in A 6205 "Rust preventive agent for reinforced concrete" can be used, such as nitrites such as calcium nitrite and sodium nitrite, pyroxyethylene bisglycerol porate, and polyoxyethylene bisglycerol. Examples include boric acid esters such as porate and oleate, organic carboxylate salts, and the like.
【００１３】上記したような防錆剤を、前記したような
多孔質骨材中に内蔵させるには、防錆剤の水溶液を多孔
質骨材に加えて吸水させた後、乾燥させて水分を蒸発さ
せるようにすれば良く、例えば防錆剤の水溶液中に多孔
質骨材を含浸させて充分に吸水させた後、空気乾燥すれ
ば良い。In order to incorporate the above-mentioned rust preventive into the above-mentioned porous aggregate, an aqueous solution of the rust preventive is added to the porous aggregate to absorb water, and then dried to remove the water. For example, the porous aggregate may be impregnated with an aqueous solution of a rust preventive agent to absorb sufficient water, and then air-dried.
【００１４】このように作製された骨材は、一般に使用
される他の骨材と適宜に混合してモルタル組成物に配合
することができる。このモルタル組成物を養生して得ら
れる無機質硬化（成形）物は、防錆剤が均一に分散混合
され、この防錆剤が徐々に微量づつ溶解し、長期間に亙
って防錆効果を発揮する。したがって、上記したモルタ
ル組成物を既設の無機質硬化（成形）物の表面に塗着さ
せると、この既設の無機質硬化（成形）物の内部にまで
防錆剤が拡散・浸透するので、その劣化を長期間に亙っ
て防止することができる。[0014] The aggregate thus prepared can be mixed with other generally used aggregates as appropriate and incorporated into a mortar composition. In the inorganic hardened (molded) product obtained by curing this mortar composition, the rust preventive agent is uniformly dispersed and mixed, and the rust preventive agent gradually dissolves in minute amounts, maintaining the rust preventive effect over a long period of time. Demonstrate. Therefore, when the mortar composition described above is applied to the surface of an existing inorganic hardened (molded) object, the rust preventive agent will diffuse and permeate into the interior of the existing inorganic hardened (molded) object, preventing its deterioration. It can be prevented for a long period of time.
【００１５】また、上記した骨材の表面にセメントを被
覆させて被覆させて硬化・造粒させるようにしても良い
。上記したセメントとしては、例えばポルトランドセメ
ント、ポルトランド系混合セメント、白色セメント、ジ
ェットセメント等を使用することができる。この場合、
多孔質骨材中に防錆剤の水溶液を加えて吸水させた後、
乾燥することなくセメントをその表面に被覆させれば良
く、セメントは、養生することにより多孔質骨材の表面
の水分で硬化する。こうして得られた骨材は、その表面
がセメントで被覆されているので、内蔵された防錆剤の
溶解性がさらに遅くなり、これを配合したモルタル組成
物の防錆効果は、より長期化する。[0015] Furthermore, the surface of the aggregate described above may be coated with cement and then hardened and granulated. As the above-mentioned cement, for example, Portland cement, Portland mixed cement, white cement, jet cement, etc. can be used. in this case,
After adding an aqueous solution of rust preventive to the porous aggregate and allowing it to absorb water,
It is sufficient to coat the surface of the porous aggregate with cement without drying, and the cement hardens with moisture on the surface of the porous aggregate by curing. Since the surface of the aggregate obtained in this way is covered with cement, the solubility of the built-in rust preventive agent is further delayed, and the rust preventive effect of the mortar composition containing this agent is longer. .
【００１６】また、上記した防錆剤の代わりに、例えば
ケイ酸リチウム、亜硝酸リチウム等のアルカリ金属塩を
多孔質骨材中に内蔵させた骨材を配合したモルタル組成
物を塗着させるようにしても良い。このアルカリ金属塩
を多孔質骨材中に内蔵させた骨材は、多孔質骨材中にア
ルカリ金属塩の水溶液を加えて吸水させた後、乾燥させ
て水分を蒸発させることにより作製することができる。
或いは、多孔質骨材中にアルカリ金属塩の水溶液を加え
て吸水させた後、乾燥することなくセメントをその表面
に被覆させて硬化・造粒させるようにしても良い。[0016] Instead of the above-mentioned rust preventive agent, it is also possible to apply a mortar composition containing an aggregate in which an alkali metal salt such as lithium silicate or lithium nitrite is incorporated into the porous aggregate. You can also do it. Aggregates in which alkali metal salts are incorporated into porous aggregates can be produced by adding an aqueous solution of alkali metal salts to porous aggregates, absorbing water, and then drying to evaporate the water. can. Alternatively, after an aqueous solution of an alkali metal salt is added to the porous aggregate to absorb water, cement may be coated on the surface of the porous aggregate without drying, and the aggregate may be hardened and granulated.
【００１７】このようなアルカリ金属塩を内蔵させた骨
材をモルタル組成物に配合して養生すると、アルカリ金
属塩が徐々に微量づつ溶解し、長期間に亙って無機質硬
化（成形）物をアルカリ性にし、防錆することができる
。したがって、上記したモルタル組成物を既設の無機質
硬化（成形）物の表面に塗着させると、この既設の無機
質硬化（成形）物の内部にまでアルカリ金属塩が拡散・
浸透するので、その劣化を長期間に亙って防止すること
ができる。When aggregate containing such alkali metal salts is blended into a mortar composition and cured, the alkali metal salts gradually dissolve in small amounts, forming an inorganic hardened (molded) product over a long period of time. It can be made alkaline and rust-proof. Therefore, when the mortar composition described above is applied to the surface of an existing inorganic cured (molded) object, the alkali metal salt will diffuse into the interior of the existing inorganic cured (molded) object.
Since it penetrates, its deterioration can be prevented for a long period of time.
【００１８】本発明は、腐食性金属材料が埋め込まれた
無機質硬化物の表面に、前記したように粒度及び嵩密度
、吸水率を限定した多孔質骨材を配合したモルタル組成
物を塗着させることにより、外部からの水の浸入を抑制
し、内部の水分を滞留させることがないので、黴や錆の
発生を防止することができるが、上記したように防錆剤
やアルカリ金属塩が内蔵された多孔質骨材を配合するこ
とにより、さらに防錆効果を向上し、長期間に亙って無
機質硬化物の劣化を防止することができるものである。
尚、上記した本発明におけるモルタル組成物は、粒度及
び嵩密度、吸水率を限定した多孔質骨材、それに防錆剤
が内蔵された多孔質骨材、アルカリ金属塩が内蔵された
多孔質骨材、防錆剤が内蔵され、且つその表面がセメン
トで被覆されている多孔質骨材、アルカリ金属塩が内蔵
され、且つその表面がセメントで被覆されている多孔質
骨材のうち、一種以上を配合してなることを特徴とする
ものである。[0018] In the present invention, a mortar composition containing porous aggregate with limited particle size, bulk density, and water absorption rate as described above is applied to the surface of an inorganic cured product in which a corrosive metal material is embedded. This prevents water from entering from the outside and prevents moisture from stagnation inside, which prevents the formation of mold and rust. By blending the porous aggregate, the antirust effect can be further improved and deterioration of the inorganic cured product can be prevented over a long period of time. The mortar composition of the present invention described above includes a porous aggregate with limited particle size, bulk density, and water absorption rate, a porous aggregate with a built-in rust preventive agent, and a porous bone with a built-in alkali metal salt. one or more of the following: porous aggregates that contain a built-in rust preventive agent and whose surface is coated with cement; and porous aggregates that contain an alkali metal salt and whose surface is coated with cement. It is characterized by being blended with.
【００１９】また、本発明は、上記したモルタル組成物
を、直接無機質硬化物の表面に塗着させても良いが、先
にセメントペーストを下塗り材として塗布するようにし
ても良い。上記したように、セメントペーストを下塗り
すると、本発明におけるモルタル組成物の接着性を向上
、安定させることができ、セメントペーストの高アルカ
リ性により腐食性金属材料の防錆効果をも向上させるこ
とができる。また、この場合、セメントペーストにセメ
ント混和用ポリマーディスパージョンを混入すればさら
に接着性は安定する。このように、本発明におけるモル
タル組成物の透湿性能を低下させない程度であれば接着
性の安定のためセメント混和用ポリマーディスパージョ
ンを使用しても良い。Further, in the present invention, the mortar composition described above may be applied directly to the surface of the inorganic cured product, but cement paste may be applied first as an undercoat. As mentioned above, undercoating with cement paste can improve and stabilize the adhesion of the mortar composition in the present invention, and the high alkalinity of cement paste can also improve the rust prevention effect of corrosive metal materials. . Further, in this case, adhesion can be further stabilized by mixing a cement-mixing polymer dispersion into the cement paste. As described above, a polymer dispersion for mixing with cement may be used to stabilize adhesion as long as it does not reduce the moisture permeability of the mortar composition of the present invention.
【００２０】上記したセメントペーストとしては、ポル
トランドセメント、ポルトランド系混合セメント等を使
用することができ、これに適量の水を加え、ペースト状
に練り、作業性の向上のため、保水剤、増粘剤、細骨材
を混合しても良い。一方、セメント混和用ポリマーディ
スパージョンの混入量は、ディスパージョンの種類によ
り限定できないが、固形分で０．５〜３０％を粉体に対
して混入して使用するべきである。このセメント混和用
ポリマーディスパージョンとしては、セメントに混入し
て異常を起こさず、可始時間が充分取れるものであれば
特に限定するものではないが、アクリル系樹脂エマルジ
ョン、エチレン・酢酸ビニル共重合系エマルジョン、エ
チレン，酢酸ビニル，スチレン系，アクリル酸エステル
系からなる多元系合成樹脂エマルジョン、ＳＢＲラテッ
クス、エポキシ樹脂エマルジョン等が適当である。[0020] As the above-mentioned cement paste, Portland cement, Portland-based mixed cement, etc. can be used, and an appropriate amount of water is added to this and kneaded into a paste. A sticky agent and fine aggregate may be mixed. On the other hand, the amount of the polymer dispersion for cement mixing cannot be limited depending on the type of dispersion, but it should be used at a solid content of 0.5 to 30% based on the powder. The polymer dispersion for mixing with cement is not particularly limited as long as it does not mix into cement and causes abnormalities and has a sufficient starting time, but examples include acrylic resin emulsion, ethylene/vinyl acetate copolymer Emulsions, multicomponent synthetic resin emulsions consisting of ethylene, vinyl acetate, styrene, acrylic esters, SBR latex, epoxy resin emulsions, etc. are suitable.
【００２１】特に、腐食性金属材料の部分や塩素イオン
濃度の高い構造物には、セメントペーストに、ＪＩＳ
Ａ６２０５に規定される防錆剤等を混入した方が防錆
効果はさらに向上する。[0021] In particular, for parts of corrosive metal materials and structures with high chlorine ion concentration, use JIS
The rust prevention effect is further improved by mixing a rust preventive agent specified in A6205.
【００２２】尚、本発明におけるモルタル組成物中に、
前記したように防錆剤やアルカリ金属塩が内蔵された多
孔質骨材を配合した場合、この防錆剤やアルカリ金属塩
は、微量づつ溶解し、拡散していき、表面からの水によ
りその拡散速度は促進され、また一部は水によって流失
してしまう可能性がある。そこで、本発明におけるモル
タル組成物を塗着させた後、上塗り材としてセメント系
組成物を塗布すると、上記した防錆剤やアルカリ金属塩
の拡散及び流出を抑制し、長期間に亙ってその効果を継
続させることができる。[0022] In the mortar composition of the present invention,
As mentioned above, when porous aggregates containing rust preventive agents and alkali metal salts are mixed, the rust preventive agents and alkali metal salts are dissolved and diffused little by little, and the water from the surface dissolves them. The rate of diffusion is accelerated and some may be washed away by water. Therefore, if a cement-based composition is applied as a top coat material after applying the mortar composition of the present invention, the diffusion and outflow of the above-mentioned rust preventive agent and alkali metal salt will be suppressed, and the composition will last for a long period of time. The effect can be continued.
【００２３】上記したセメント系組成物とは、ポルトラ
ンドセメント、白色セメント、ポルトランド系混合セメ
ント等に、細骨材、無機質混和剤、分散剤、増粘剤等を
配合し、使用時に水を加えて練ったものである。この場
合、セメント系組成物の接着性の向上、安定のため、セ
メント混和用ポリマーディスパージョンを透湿性能の損
なわない程度に混入するようにしても良い。上記したセ
メント混和用ポリマーディスパージョンとしては、アク
リル系樹脂エマルジョン、エチレン・酢酸ビニル共重合
系エマルジョン、エチレン，酢酸ビニル，スチレン系，
アクリル酸エステル系からなる多元系合成樹脂エマルジ
ョン、ＳＢＲラテックス、エポキシ樹脂エマルジョン等
が適当である。[0023] The above-mentioned cement composition is made by blending fine aggregate, inorganic admixtures, dispersants, thickeners, etc. with Portland cement, white cement, Portland mixed cement, etc., and adding water at the time of use. This is something that I have carefully refined. In this case, in order to improve the adhesion and stabilize the cement-based composition, a polymer dispersion for admixing with cement may be mixed to an extent that does not impair moisture permeability. The above-mentioned polymer dispersions for mixing with cement include acrylic resin emulsions, ethylene/vinyl acetate copolymer emulsions, ethylene, vinyl acetate, styrene,
Suitable examples include multicomponent synthetic resin emulsions made of acrylic acid esters, SBR latex, and epoxy resin emulsions.
【００２４】また、このような上塗りのセメント系組成
物には、前記した下塗りのセメントペーストと同様に、
防錆剤を混入した方が防錆効果はさらに向上する。[0024] In addition, such a cement composition for the top coat may contain, like the above-mentioned cement paste for the base coat,
The rust prevention effect is further improved by mixing a rust preventive agent.
【００２５】[0025]
【実施例】以下に、本発明の実施例を示す。
配合例１〜４
表１の多孔質骨材を使用し、表２に示す配合組成の補修
・改修用モルタル組成物を、それぞれ配合例１〜４とし
た。[Examples] Examples of the present invention are shown below. Mixing Examples 1 to 4 Repair/repair mortar compositions using the porous aggregates shown in Table 1 and having the mixing compositions shown in Table 2 were designated as Mixing Examples 1 to 4, respectively.
【００２６】比較例１，２
表２に示す配合組成の補修・改修用モルタル組成物を、
それぞれ比較例１，２とした。Comparative Examples 1 and 2 A repair/repair mortar composition having the composition shown in Table 2 was used.
Comparative Examples 1 and 2 were used, respectively.
【００２７】[0027]
【表１】[Table 1]
【００２８】[0028]
【表２】[Table 2]
【００２９】試験１；曲げ強度の測定
前記した配合例１〜４、比較例１の配合で、日本建築学
会規格ＪＡＳＳ １５Ｍ−１０２既調合セメントモル
タルの品質基準により試験サンプルをそれぞれ作製し、
曲げ強度（ｋｇ／ｃｍ２ ）を測定（ｎ＝３）し、結果
を表３に示した。
試験機：島津製作所製オートグラフＡＧ５０００Ｃクロ
スヘッドスピード０．５ｍｍ／ｍｉｎTest 1: Measurement of bending strength Test samples were prepared using the formulations of the above-mentioned formulations 1 to 4 and Comparative Example 1 according to the Architectural Institute of Japan standard JASS 15M-102 quality standard for ready-mixed cement mortar.
The bending strength (kg/cm2) was measured (n=3) and the results are shown in Table 3. Test machine: Shimadzu Autograph AG5000C crosshead speed 0.5mm/min
【００３０】試験
２；吸水量の測定
前記した配合例１〜４、比較例１の配合で、日本建築学
会規格ＪＡＳＳ １５Ｍ−１０２既調合セメントモル
タルの品質基準により試験サンプルをそれぞれ作製し、
吸水量（ｇ）を測定（ｎ＝３）し、結果を表３に示した
。Test 2: Measurement of Water Absorption Test samples were prepared according to the quality standards for ready-mixed cement mortar according to the Architectural Institute of Japan standard JASS 15M-102 using the formulations of Formulation Examples 1 to 4 and Comparative Example 1 described above.
The water absorption amount (g) was measured (n=3) and the results are shown in Table 3.
【００３１】試験３；透水量の測定
前記した配合例２，４、比較例１の配合で、日本建築学
会規格ＪＡＳＳ １５Ｍ−１０２既調合セメントモル
タルの品質基準により、直径７５ｍｍ，厚さ２０ｍｍの
試験サンプルをそれぞれ作製し、透水量（ｍｌ）を測定
（ｎ＝３）し、結果を表３に示した。また、配合例２，
４のモルタルの表面に、
普通ポルトランドセメント…７８．５％細骨材（マイカ
ー） …２１．４％メトローズ（増粘剤）
… ０．１％からなるセメント系組成物Ａを上
塗りしたものを、それぞれ配合例２−Ａ，４−Ａとして
評価（ｎ＝３）し、結果を表３に示した。Test 3: Measurement of Water Permeation A test was conducted on a 75 mm diameter and 20 mm thick sample using the formulations of the above-mentioned formulations 2 and 4 and Comparative Example 1, according to the quality standards for ready-mixed cement mortar according to the Architectural Institute of Japan standard JASS 15M-102. Samples were prepared respectively, and the water permeability (ml) was measured (n=3), and the results are shown in Table 3. In addition, formulation example 2,
On the surface of the mortar in Step 4, add ordinary Portland cement...78.5% fine aggregate (mica)...21.4% Metrose (thickener)
...Those coated with cement composition A containing 0.1% were evaluated as formulation examples 2-A and 4-A (n=3), respectively, and the results are shown in Table 3.
【００３２】[0032]
【表３】[Table 3]
【００３３】試験４；透湿性試験
前記した配合例１〜４、比較例２の配合で直径１０８ｍ
ｍ，厚さ２０ｍｍの試験サンプルをそれぞれ作製し、温
度２０℃，湿度６５％の恒温恒湿室で材令２８日まで養
生した。直径１０８ｍｍ，深さ６５ｍｍのカップの底に
水道水５０ｇを入れ、このカップの上端部に試験サンプ
ルをセットし、この試験サンプルとカップの上縁部をパ
ラフィンシートで完全シールして温度２０℃，湿度６５
％の恒温恒湿室に置き、重量変化を測定（ｎ＝３）し、
結果を図１に示した。Test 4: Moisture permeability test With the formulations of the formulations 1 to 4 and Comparative Example 2, the diameter was 108m.
Test samples each having a thickness of 20 mm and a temperature of 20° C. were prepared and cured in a constant temperature and humidity room at a temperature of 20° C. and a humidity of 65% until the age of 28 days. Put 50 g of tap water in the bottom of a cup with a diameter of 108 mm and a depth of 65 mm, set the test sample at the top of the cup, completely seal the test sample and the top edge of the cup with a paraffin sheet, and heat at 20°C. Humidity 65
% in a constant temperature and humidity room and measure the weight change (n = 3),
The results are shown in Figure 1.
【００３４】次に、配合例１，２，４のモルタルの表面
に、前記したセメント系組成物Ａを上塗りしたものを、
それぞれ配合例１−Ａ，２−Ａ，４−Ａとして評価（ｎ
＝３）し、結果を図２に示した。Next, the surfaces of the mortars of Formulation Examples 1, 2, and 4 were coated with the above-mentioned cement composition A.
Evaluated as formulation examples 1-A, 2-A, and 4-A, respectively (n
= 3) and the results are shown in FIG.
【００３５】また、配合例２中の普通ポルトランドセメ
ントに対して６．６％のアクリル系セメント混和用ポリ
マーディスパージョン（固形分６０％）を配合して試験
サンプルとしたものを配合例２−Ｂとし、配合例２のモ
ルタルの表面に、前記したセメント系組成物Ａのモルタ
ル組成物粉体に対して２５％のアクリル系セメント混和
用ポリマーディスパージョン（固形分６０％）を配合し
たセメント系組成物Ｃを上塗りしたものを配合例２−Ｃ
とし、上記した配合例２−Ｂのモルタルの表面に、上記
したセメント系組成物Ｃを上塗りしたものを配合例２−
Ｄとして評価（ｎ＝３）し、結果を図３に示した。[0035] In addition, a test sample was prepared by blending 6.6% of acrylic cement-mixing polymer dispersion (solid content 60%) with the ordinary Portland cement in Mixing Example 2. A cement composition in which 25% of an acrylic cement-mixing polymer dispersion (solid content 60%) was blended with the mortar composition powder of cement composition A described above on the surface of the mortar of Formulation Example 2. Formulation example 2-C is a topcoat of product C.
Then, the surface of the mortar of the above-mentioned Formulation Example 2-B was overcoated with the above-mentioned cement-based composition C to form a Formulation Example 2-B.
It was evaluated as D (n=3), and the results are shown in FIG.
【００３６】さらに、配合例４中の普通ポルトランドセ
メントに対して６．６％のアクリル系セメント混和用ポ
リマーディスパージョン（固形分６０％）を配合して試
験サンプルとしたものを配合例４−Ｂとし、配合例４の
モルタルの表面に、前記したセメント系組成物Ａのモル
タル組成物粉体に対して２５％のアクリル系セメント混
和用ポリマーディスパージョン（固形分６０％）を配合
したセメント系組成物Ｃを上塗りしたものを配合例４−
Ｃとし、上記した配合例４−Ｂのモルタルの表面に、上
記したセメント系組成物Ｃを上塗りしたものを配合例４
−Ｄとして評価（ｎ＝３）し、結果を図４に示した。[0036] Further, a test sample was prepared by blending 6.6% of acrylic cement-mixing polymer dispersion (solid content 60%) with the ordinary Portland cement in Formulation Example 4. A cement composition in which 25% of an acrylic cement-mixing polymer dispersion (solid content 60%) was blended with the mortar composition powder of cement composition A described above on the surface of the mortar of Formulation Example 4. Formulation example 4-
Formulation Example 4 is obtained by coating the surface of the mortar of Formulation Example 4-B with the cement-based composition C described above.
-D (n=3), and the results are shown in FIG.
【００３７】尚、上記した透湿性試験の結果に鑑み、数
１により透湿率を計算し、表４に示した。In view of the results of the moisture permeability test described above, the moisture permeability was calculated using Equation 1 and is shown in Table 4.
【数１】[Math 1]
【００３８】[0038]
【表４】[Table 4]
【００３９】骨材Ａ；
水道水１２０ｃｃにサビノンＰ（防錆剤，キレスト化学
株式会社製）６．９ｇを加え、充分に攪拌し、溶解させ
る。次に、ゼオライト１０１４（多孔質骨材）５８ｇ，
ゼオライト１４２４（多孔質骨材）２２９ｇを加えて充
分に攪拌し、吸水させた後、５０℃の乾燥機に入れて乾
燥する。Aggregate A: Add 6.9 g of Sabinon P (rust inhibitor, manufactured by Chrest Chemical Co., Ltd.) to 120 cc of tap water and stir thoroughly to dissolve. Next, 58 g of zeolite 1014 (porous aggregate),
After adding 229 g of zeolite 1424 (porous aggregate) and stirring thoroughly to absorb water, the mixture is placed in a dryer at 50° C. and dried.
【００４０】骨材Ｂ；
水道水１２０ｃｃにサビノンＰ（防錆剤）１３．８ｇを
加え、充分に攪拌し、溶解させる。次に、ゼオライト１
０１４（多孔質骨材）５８ｇ，ゼオライト１４２４（多
孔質骨材）２２９ｇを加えて充分に攪拌し、吸水させた
後、５０℃の乾燥機に入れて乾燥する。Aggregate B: Add 13.8 g of Sabinon P (rust preventive agent) to 120 cc of tap water and stir thoroughly to dissolve. Next, zeolite 1
After adding 58 g of Zeolite 014 (porous aggregate) and 229 g of Zeolite 1424 (porous aggregate) and stirring thoroughly to absorb water, the mixture was placed in a dryer at 50° C. and dried.
【００４１】骨材Ｃ；
水道水１２０ｃｃにサビノンＰ（防錆剤）６．９ｇを加
え、充分に攪拌し、溶解させる。次に、ゼオライト１０
１４（多孔質骨材）５８ｇ，ゼオライト１４２４（多孔
質骨材）２２９ｇを加えて充分に攪拌し、吸水させた後
、普通ポルトランドセメント１４０ｇを加えて攪拌し、
付着造粒する。これを２０℃，６５％で４８時間養生し
た後、５０℃の乾燥機に入れて乾燥する。Aggregate C: Add 6.9 g of Sabinon P (rust preventive agent) to 120 cc of tap water and stir thoroughly to dissolve. Next, Zeolite 10
Add 58 g of 14 (porous aggregate) and 229 g of zeolite 1424 (porous aggregate) and stir thoroughly to absorb water, then add 140 g of ordinary Portland cement and stir,
Adhesive granulation. After curing this at 20°C and 65% for 48 hours, it was placed in a dryer at 50°C and dried.
【００４２】骨材Ｄ；
水道水１２０ｃｃにサビノンＰ（防錆剤）１３．８ｇを
加え、充分に攪拌し、溶解させる。次に、ゼオライト１
０１４（多孔質骨材）５８ｇ，ゼオライト１４２４（多
孔質骨材）２２９ｇを加えて充分に攪拌し、吸水させた
後、普通ポルトランドセメント１４０ｇを加えて攪拌し
、付着造粒する。これを２０℃，６５％で４８時間養生
した後、５０℃の乾燥機に入れて乾燥する。Aggregate D: Add 13.8 g of Sabinon P (rust preventive agent) to 120 cc of tap water and stir thoroughly to dissolve. Next, zeolite 1
After adding 58 g of Zeolite 1424 (porous aggregate) and 229 g of Zeolite 1424 (porous aggregate) and thoroughly stirring to absorb water, 140 g of ordinary Portland cement was added and stirred to adhere and granulate. After curing this at 20°C and 65% for 48 hours, it was placed in a dryer at 50°C and dried.
【００４３】骨材Ｅ；
水道水２００ｃｃにサビノンＰ（防錆剤）６．９ｇを加
え、充分に攪拌し、溶解させる。次に、イソライト１号
（多孔質骨材）１８８．２ｇ，イソライト２号（多孔質
骨材）１６８ｇを加えて充分に攪拌し、吸水させた後、
普通ポルトランドセメント２００ｇを加えて攪拌し、付
着造粒する。これを２０℃，６５％で４８時間養生した
後、５０℃の乾燥機に入れて乾燥する。Aggregate E: Add 6.9 g of Sabinon P (rust preventive agent) to 200 cc of tap water and stir thoroughly to dissolve. Next, 188.2 g of Isolite No. 1 (porous aggregate) and 168 g of Isolite No. 2 (porous aggregate) were added and thoroughly stirred to absorb water.
Add 200 g of ordinary Portland cement and stir to adhere and granulate. After curing this at 20°C and 65% for 48 hours, it was placed in a dryer at 50°C and dried.
【００４４】骨材Ｆ；
水道水２００ｃｃにサビノンＰ（防錆剤）１３．８ｇを
加え、充分に攪拌し、溶解させる。次に、イソライト１
号（多孔質骨材）１８８．２ｇ，イソライト２号（多孔
質骨材）１６８ｇを加えて充分に攪拌し、吸水させた後
、普通ポルトランドセメント２００ｇを加えて攪拌し、
付着造粒する。これを２０℃，６５％で４８時間養生し
た後、５０℃の乾燥機に入れて乾燥する。Aggregate F: Add 13.8 g of Sabinon P (rust preventive agent) to 200 cc of tap water and stir thoroughly to dissolve. Next, isolite 1
After adding 188.2 g of No. (porous aggregate) and 168 g of Isolite No. 2 (porous aggregate) and stirring thoroughly to absorb water, 200 g of ordinary Portland cement was added and stirred.
Adhesive granulation. After curing this at 20°C and 65% for 48 hours, it was placed in a dryer at 50°C and dried.
【００４５】骨材Ｇ；
水道水２００ｃｃにサビノンＰ（防錆剤）２０．７ｇを
加え、充分に攪拌し、溶解させる。次に、イソライト１
号（多孔質骨材）１８８．２ｇ，イソライト２号（多孔
質骨材）１６８ｇを加えて充分に攪拌し、吸水させた後
、普通ポルトランドセメント２００ｇを加えて攪拌し、
付着造粒する。これを２０℃，６５％で４８時間養生し
た後、５０℃の乾燥機に入れて乾燥する。Aggregate G: Add 20.7 g of Sabinon P (rust preventive agent) to 200 cc of tap water and stir thoroughly to dissolve. Next, isolite 1
After adding 188.2 g of No. (porous aggregate) and 168 g of Isolite No. 2 (porous aggregate) and stirring thoroughly to absorb water, 200 g of ordinary Portland cement was added and stirred.
Adhesive granulation. After curing this at 20°C and 65% for 48 hours, it was placed in a dryer at 50°C and dried.
【００４６】骨材Ｈ；
水道水１００ｃｃにＬＩＮＩ−２５（亜硝酸リチウム水
溶液，日産化学工業株式会社製）１１０ｇを加え、充分
に攪拌し、溶解させる。次に、イソライト１号（多孔質
骨材）１８８．２ｇ，イソライト２号（多孔質骨材）１
６８ｇを加えて充分に攪拌し、吸水させた後、５０℃の
乾燥機に入れて乾燥する。Aggregate H: Add 110 g of LINI-25 (lithium nitrite aqueous solution, manufactured by Nissan Chemical Industries, Ltd.) to 100 cc of tap water and stir thoroughly to dissolve. Next, 188.2 g of Isolite No. 1 (porous aggregate), 1 g of Isolite No. 2 (porous aggregate)
After adding 68 g and thoroughly stirring to absorb water, the mixture is placed in a dryer at 50°C and dried.
【００４７】骨材Ｉ；
水道水１００ｃｃにＬＩＮＩ−２５（亜硝酸リチウム水
溶液）１１０ｇを加え、充分に攪拌し、溶解させる。次
に、イソライト１号（多孔質骨材）１８８．２ｇ，イソ
ライト２号（多孔質骨材）１６８ｇを加えて充分に攪拌
し、吸水させた後、普通ポルトランドセメント２００ｇ
を加えて攪拌し、付着造粒する。これを２０℃，６５％
で４８時間養生した後、５０℃の乾燥機に入れて乾燥す
る。Aggregate I: Add 110 g of LINI-25 (lithium nitrite aqueous solution) to 100 cc of tap water and stir thoroughly to dissolve. Next, 188.2 g of Isolite No. 1 (porous aggregate) and 168 g of Isolite No. 2 (porous aggregate) were added and stirred thoroughly to absorb water, followed by 200 g of ordinary Portland cement.
Add and stir to adhere and granulate. This at 20℃, 65%
After curing for 48 hours, place in a dryer at 50°C to dry.
【００４８】骨材Ｊ；
水道水１００ｃｃにＺＯＬ−５１０（ケイ酸リチウム水
溶液，日産化学工業株式会社製）１１０ｇを加え、充分
に攪拌し、溶解させる。次に、イソライト１号（多孔質
骨材）１８８．２ｇ，イソライト２号（多孔質骨材）１
６８ｇを加えて充分に攪拌し、吸水させた後、５０℃の
乾燥機に入れて乾燥する。Aggregate J: Add 110 g of ZOL-510 (lithium silicate aqueous solution, manufactured by Nissan Chemical Industries, Ltd.) to 100 cc of tap water and stir thoroughly to dissolve. Next, 188.2 g of Isolite No. 1 (porous aggregate), 1 g of Isolite No. 2 (porous aggregate)
After adding 68 g and thoroughly stirring to absorb water, the mixture is placed in a dryer at 50°C and dried.
【００４９】骨材Ｋ；
水道水１００ｃｃにＺＯＬ−５１０（ケイ酸リチウム水
溶液）１１０ｇを加え、充分に攪拌し、溶解させる。次
に、イソライト１号（多孔質骨材）１８８．２ｇ，イソ
ライト２号（多孔質骨材）１６８ｇを加えて充分に攪拌
し、吸水させた後、普通ポルトランドセメント２００ｇ
を加えて攪拌し、付着造粒する。これを２０℃，６５％
で４８時間養生した後、５０℃の乾燥機に入れて乾燥す
る。Aggregate K: Add 110 g of ZOL-510 (lithium silicate aqueous solution) to 100 cc of tap water and stir thoroughly to dissolve. Next, 188.2 g of Isolite No. 1 (porous aggregate) and 168 g of Isolite No. 2 (porous aggregate) were added and stirred thoroughly to absorb water, followed by 200 g of ordinary Portland cement.
Add and stir to adhere and granulate. This at 20℃, 65%
After curing for 48 hours, place in a dryer at 50°C to dry.
【００５０】配合例５〜１６
上記した骨材Ａ〜Ｋを用い、表５及び表６の配合組成の
補修・改修用モルタル組成物を混合調整し、それぞれ配
合例５〜１６とした。Blend Examples 5 to 16 Using the above-mentioned aggregates A to K, repair/repair mortar compositions having the blend compositions shown in Tables 5 and 6 were mixed and prepared to form Blend Examples 5 to 16, respectively.
【００５１】比較例３〜７
骨材Ａ〜Ｋを使用することなく、表５及び表６の配合組
成の補修・改修用モルタル組成物を混合調整し、それぞ
れ比較例３〜７とした。Comparative Examples 3 to 7 Comparative Examples 3 to 7 were prepared by mixing repair/renovation mortar compositions having the compositions shown in Tables 5 and 6 without using aggregates A to K, respectively.
【００５２】[0052]
【表５】[Table 5]
【００５３】[0053]
【表６】[Table 6]
【００５４】供試体１；
上記した配合例５〜１６、比較例３〜７のモルタル組成
物を日本建築学会規格ＪＡＳＳ １５Ｍ−１０２によ
り表５及び表６に示した水量で混練りし、４×４×１６
ｃｍの型枠に入れ、成形する。これを温度２０℃，湿度
８０％以上で４８時間湿空養生した後、脱型し、温度２
０℃，湿度６５％の恒温恒湿室で材令２週間まで養生し
て供試体１とした。Specimen 1: The mortar compositions of Formulation Examples 5 to 16 and Comparative Examples 3 to 7 described above were kneaded according to the Architectural Institute of Japan standard JASS 15M-102 with the amount of water shown in Tables 5 and 6, and 4× 4×16
Place in a cm mold and shape. After curing in humid air for 48 hours at a temperature of 20℃ and a humidity of 80% or higher, the mold was demolded and the temperature was 20℃ or higher.
Specimen 1 was obtained by curing in a constant temperature and humidity room at 0°C and 65% humidity until the age of 2 weeks.
【００５５】供試体２；
７×７×２ｃｍに成形した以外は上記した供試体１と同
様の条件で作製し、供試体２とした。Specimen 2: Specimen 2 was prepared under the same conditions as Specimen 1 described above except that it was molded to a size of 7×7×2 cm.
【００５６】供試体３；
上記した供試体２の表面及び裏面（７×７ｃｍ）にセメ
ント系組成物を上塗りし、温度２０℃，湿度６５％の恒
温恒湿室で材令２週間まで養生して供試体３とした。
尚、上記したセメント系組成物は、フジライト＃１０（
富士川建材工業株式会社製）２５ｋｇと、アクリル系セ
メント混和用ポリマーディスパージョン（固形分６０％
）２．５ｋｇと、水とをペースト状に練ったものを使用
した。Specimen 3: The front and back surfaces (7 x 7 cm) of the specimen 2 described above were coated with a cement composition, and cured in a constant temperature and humidity room at a temperature of 20° C. and a humidity of 65% for up to 2 weeks. This was designated as specimen 3. In addition, the above-mentioned cement-based composition is Fujilite #10 (
25 kg (manufactured by Fujikawa Kenzai Kogyo Co., Ltd.) and polymer dispersion for mixing with acrylic cement (solid content 60%)
) and water were kneaded into a paste.
【００５７】供試体４；
防錆剤入りセメント系組成物を上塗りした以外は、上記
した供試体３と同様の条件で作製し、供試体４とした。
尚、上記した防錆剤入りセメント系組成物は、フジライ
ト＃１０（富士川建材工業株式会社製）２５ｋｇと、カ
ビノンＰ（防錆剤）２５０ｇと、アクリル系セメント混
和用ポリマーディスパージョン（固形分６０％）２．５
ｋｇと、水とをペースト状に練ったものを使用した。Specimen 4: Specimen 4 was prepared under the same conditions as Specimen 3 described above, except that a cement composition containing a rust preventive agent was applied as an overcoat. The above-mentioned cement composition containing a rust preventive agent contains 25 kg of Fujilite #10 (manufactured by Fujikawa Kenzai Kogyo Co., Ltd.), 250 g of Kabinon P (rust preventive agent), and a polymer dispersion (solid content) for mixing with acrylic cement. 60%) 2.5
kg and water were kneaded into a paste.
【００５８】試験５；錆発生試験
養生の終了した供試体の重量を測定した後、温度５０℃
，湿度９０％以上にしたフランキ機内に入れ、錆の発生
状況を観察した。
錆が全く発生していないものを ◎錆の発生
がほとんどないものを ■錆の発生が僅かに
認められるものを △錆の発生がかなり認められるも
のを ×錆の発生が顕著に認められるものを ××
と判定（ｎ＝３）し、結果を表７〜９に示した。尚、比
較条件として、供試体をポリスチレンの密封容器に入れ
、２０℃，６５％の恒温恒湿室で同様に錆の発生状況を
観察した。Test 5: Rust generation test After measuring the weight of the cured specimen, the temperature was 50°C.
The specimens were placed in a Franchi machine with a humidity of 90% or higher, and the occurrence of rust was observed. Items with no rust at all ◎ Items with almost no rust ■ Items with a slight amount of rust △ Items with a significant amount of rust × Items with significant rust ××
(n=3), and the results are shown in Tables 7 to 9. As a comparative condition, the specimen was placed in a sealed polystyrene container and the rust formation was similarly observed in a constant temperature and humidity chamber at 20° C. and 65%.
【００５９】試験６；吸湿重量の測定
上記した試験５において、錆の発生状況を観察すると同
時に供試体の重量変化（ｇ）を測定（ｎ＝３）し、結果
を表７〜９に示した。Test 6: Measurement of moisture absorption weight In Test 5 described above, the change in weight (g) of the specimen was measured (n = 3) at the same time as the occurrence of rust was observed, and the results are shown in Tables 7 to 9. .
【００６０】試験７；曲げ強度の測定
上記した試験５，６の各試験の終了後、曲げ強度（ｋｇ
／ｃｍ２ ）を測定（ｎ＝３）し、結果を表７〜８に示
した。
試験機：島津製作所製オートグラフＡＧ５０００Ｃクロ
スヘッドスピード０．５ｍｍ／ｍｉｎTest 7: Measurement of bending strength After completing each of the above-mentioned tests 5 and 6, the bending strength (kg
/cm2) was measured (n=3) and the results are shown in Tables 7 and 8. Test machine: Shimadzu Autograph AG5000C crosshead speed 0.5mm/min
【００６１】試験
８；中性化部分の面積の測定上記した試験５，６，７の
各試験の終了後、破断した断面にフェノールフタレイン
１％溶液を噴霧し、中性化部分の面積割合（％）を測定
（ｎ＝３）し、結果を表７〜８に示した。Test 8: Measurement of the area of the neutralized part After completing each of the above-mentioned tests 5, 6, and 7, a 1% solution of phenolphthalein was sprayed on the fractured cross section, and the area ratio of the neutralized part was determined. (%) was measured (n=3) and the results are shown in Tables 7 and 8.
【００６２】[0062]
【表７】[Table 7]
【００６３】[0063]
【表８】[Table 8]
【００６４】[0064]
【表９】[Table 9]
【００６５】[0065]
【発明の効果】以上説明したように、本発明の無機質硬
化物中の腐食性金属材料を防錆する工法は、既設の無機
質硬化（成形）物の改修・補修部分に粒度及び気乾嵩比
重、吸水率を限定した多孔質材を配合したモルタル組成
物を塗着させることにより、透水量、吸水量が少なく、
且つ透湿性が高く、防錆効果をも付与するので、外部か
らの水の浸入を抑制し、内部の水分を滞留することがな
く、黴や錆の発生を防止することができる。また、本発
明の工法において、防錆剤やアルカリ金属塩を内蔵させ
た多孔質骨材を配合したモルタル組成物を使用すると、
極めて長期間に亙って無機硬化物の劣化を防止すること
ができる。また、防錆剤やアルカリ金属塩を内蔵し、且
つその表面にセメントを被覆させた多孔質骨材を配合し
たモルタル組成物を塗着すると、上記した防錆効果をさ
らに長期化させることができる。したがって、本発明の
工法は、補修或いは改修に際し、特に躯体やラスモルタ
ルの鋼材等を保護し、その耐久性を向上させることがで
きるものである。また、上記したようなモルタル組成物
を塗着する前に、セメントペーストを下塗りすると、モ
ルタル組成物の接着性を向上、安定させることができ、
セメントペーストの高アルカリ性により鉄筋の防錆効果
をも向上させることができる。さらに、モルタル組成物
を塗着させた後、セメント系組成物を上塗りすると、モ
ルタル組成物中の防錆剤やアルカリ金属塩の拡散及び流
出を抑制し、長期間に亙ってその効果を継続させること
ができる。加えて、本発明の工法は、新築においても、
補修或いは改修においても適用することができ、その具
体的な作業は、通常の補修・改修作業と全く変わらない
ので極めて実用的価値が高いものである。[Effects of the Invention] As explained above, the method of rust-preventing corrosive metal materials in inorganic cured products of the present invention improves the particle size and air-dry bulk specific gravity of the repaired/repaired parts of existing inorganic cured (molded) products. By applying a mortar composition containing a porous material with limited water absorption, the amount of water permeation and water absorption is small.
In addition, it has high moisture permeability and also has an anti-corrosion effect, so it can suppress the intrusion of water from the outside, prevent moisture from staying inside, and prevent the generation of mold and rust. In addition, in the construction method of the present invention, if a mortar composition containing porous aggregate containing a rust preventive agent and an alkali metal salt is used,
Deterioration of the inorganic cured product can be prevented for an extremely long period of time. In addition, by applying a mortar composition containing porous aggregate containing a rust preventive agent and an alkali metal salt and whose surface is coated with cement, the above-mentioned rust prevention effect can be further prolonged. . Therefore, the construction method of the present invention can particularly protect the building frame and lath mortar steel materials, etc., and improve their durability during repair or renovation. In addition, by applying a primer coat of cement paste before applying the mortar composition as described above, the adhesion of the mortar composition can be improved and stabilized.
The high alkalinity of cement paste can also improve the rust prevention effect of reinforcing bars. Furthermore, if a cement-based composition is applied after applying the mortar composition, the diffusion and outflow of the rust preventive agent and alkali metal salt in the mortar composition will be suppressed, and the effect will continue for a long period of time. can be done. In addition, the construction method of the present invention can also be used in new construction.
It can also be applied to repairs or renovations, and the specific work is no different from normal repair or renovation work, so it has extremely high practical value.
【図１】本発明の配合例を透湿性試験した結果を示すグ
ラフである。FIG. 1 is a graph showing the results of a moisture permeability test of formulation examples of the present invention.
【図２】本発明の他の配合例を透湿性試験した結果を示
すグラフである。FIG. 2 is a graph showing the results of a moisture permeability test of other formulation examples of the present invention.
【図３】本発明の他の配合例を透湿性試験した結果を示
すグラフである。FIG. 3 is a graph showing the results of a moisture permeability test of other formulation examples of the present invention.
【図４】本発明の他の配合例を透湿性試験した結果を示
すグラフである。FIG. 4 is a graph showing the results of a moisture permeability test of other formulation examples of the present invention.
Claims (12)
硬化物の表面に、粒度５〜０．０６ｍｍ，気乾嵩比重１
．５〜０．１，吸水率５００〜１５ｗｔ％の多孔質骨材
を配合してなるモルタル組成物を塗着させることを特徴
とする無機質硬化物中の腐食性金属材料を防錆する工法
。Claim 1: On the surface of an inorganic cured product in which a corrosive metal material is embedded, a particle size of 5 to 0.06 mm and an air-dried bulk specific gravity of 1 is applied.
．． 5 to 0.1 and a water absorption rate of 500 to 15 wt %.
剤若しくはアルカリ金属塩が内蔵されているものである
ことを特徴とする無機質硬化物中の腐食性金属材料を防
錆する工法。2. The porous aggregate according to claim 1 is characterized in that it contains a rust preventive agent or an alkali metal salt, and prevents corrosive metal materials in an inorganic cured product from rusting. Construction method.
剤若しくはアルカリ金属塩が内蔵され、且つその表面が
セメントで被覆されているものであることを特徴とする
無機質硬化物中の腐食性金属材料を防錆する工法。3. The porous aggregate according to claim 1 is an inorganic hardened material containing a rust preventive agent or an alkali metal salt and whose surface is coated with cement. A construction method to prevent corrosive metal materials from rusting.
硬化物の表面に、粒度５〜０．０６ｍｍ，気乾嵩比重１
．５〜０．１，吸水率５００〜１５ｗｔ％の多孔質骨材
を配合してなるモルタル組成物を塗着させた後、セメン
ト系組成物若しくは防錆剤を混入したセメント系組成物
を塗布することを特徴とする無機質硬化物中の腐食性金
属材料を防錆する工法。4. On the surface of the inorganic cured product in which the corrosive metal material is embedded, particles with a particle size of 5 to 0.06 mm and an air-dried bulk specific gravity of 1 are added.
．． After applying a mortar composition containing porous aggregate with a water absorption rate of 5 to 0.1 and a water absorption rate of 500 to 15 wt%, a cement composition or a cement composition mixed with a rust preventive agent is applied. A method for rust-preventing corrosive metal materials in inorganic cured materials.
剤若しくはアルカリ金属塩が内蔵されているものである
ことを特徴とする無機質硬化物中の腐食性金属材料を防
錆する工法。5. The porous aggregate according to claim 4 is characterized in that it contains a rust preventive agent or an alkali metal salt, and prevents corrosive metal materials in an inorganic cured product from rusting. Construction method.
剤若しくはアルカリ金属塩が内蔵され、且つその表面が
セメントで被覆されているものであることを特徴とする
無機質硬化物中の腐食性金属材料を防錆する工法。6. The porous aggregate according to claim 4 is an inorganic hardened material containing a rust preventive agent or an alkali metal salt and whose surface is coated with cement. A construction method to prevent corrosive metal materials from rusting.
硬化物の表面に、セメントペーストを塗布した後、粒度
５〜０．０６ｍｍ，気乾嵩比重１．５〜０．１，吸水率
５００〜１５ｗｔ％の多孔質骨材を配合してなるモルタ
ル組成物を塗着させることを特徴とする無機質硬化物中
の腐食性金属材料を防錆する工法。7. After applying cement paste to the surface of the inorganic hardened material in which the corrosive metal material is embedded, the particle size is 5 to 0.06 mm, the air-dried bulk specific gravity is 1.5 to 0.1, and the water absorption rate is 500 to 500. A method for rust-preventing corrosive metal materials in an inorganic cured product, which comprises applying a mortar composition containing 15 wt% of porous aggregate.
剤若しくはアルカリ金属塩が内蔵されているものである
ことを特徴とする無機質硬化物中の腐食性金属材料を防
錆する工法。8. The porous aggregate according to claim 7 is characterized in that it contains a rust preventive agent or an alkali metal salt, and prevents corrosive metal materials in an inorganic cured product from rusting. Construction method.
剤若しくはアルカリ金属塩が内蔵され、且つその表面が
セメントで被覆されているものであることを特徴とする
無機質硬化物中の腐食性金属材料を防錆する工法。9. The porous aggregate according to claim 7 is an inorganic hardened material containing a rust preventive agent or an alkali metal salt and whose surface is coated with cement. A construction method to prevent corrosive metal materials from rusting.
質硬化物の表面に、セメントペーストを塗布した後、粒
度５〜０．０６ｍｍ，気乾嵩比重１．５〜０．１，吸水
率５００〜１５ｗｔ％の多孔質骨材を配合してなるモル
タル組成物を塗着させ、さらにセメント系組成物若しく
は防錆剤を混入したセメント系組成物を塗布することを
特徴とする無機質硬化物中の腐食性金属材料を防錆する
工法。10. After applying cement paste to the surface of the inorganic hardened material in which the corrosive metal material is embedded, the particle size is 5 to 0.06 mm, the air-dried bulk specific gravity is 1.5 to 0.1, and the water absorption rate is 500 to 500. Corrosion in an inorganic cured product characterized by applying a mortar composition containing 15 wt% of porous aggregate and further applying a cement composition or a cement composition containing a rust preventive. A method to prevent rust on metal materials.
防錆剤若しくはアルカリ金属塩が内蔵されているもので
あることを特徴とする無機質硬化物中の腐食性金属材料
を防錆する工法。11. The porous aggregate according to claim 10,
A method for rust-preventing corrosive metal materials in an inorganic cured product, characterized by containing a rust preventive agent or an alkali metal salt.
防錆剤若しくはアルカリ金属塩が内蔵され、且つその表
面がセメントで被覆されているものであることを特徴と
する無機質硬化物中の腐食性金属材料を防錆する工法。12. The porous aggregate according to claim 10,
A method for rust preventing corrosive metal materials in an inorganic hardened material, characterized in that a rust preventive agent or an alkali metal salt is incorporated therein, and the surface thereof is coated with cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4058591A JPH0679986B2 (en) | 1991-02-13 | 1991-02-13 | Method to prevent corrosive metal materials in inorganic hardened materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4058591A JPH0679986B2 (en) | 1991-02-13 | 1991-02-13 | Method to prevent corrosive metal materials in inorganic hardened materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04260676A true JPH04260676A (en) | 1992-09-16 |
| JPH0679986B2 JPH0679986B2 (en) | 1994-10-12 |
Family
ID=12584578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4058591A Expired - Lifetime JPH0679986B2 (en) | 1991-02-13 | 1991-02-13 | Method to prevent corrosive metal materials in inorganic hardened materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0679986B2 (en) |
-
1991
- 1991-02-13 JP JP4058591A patent/JPH0679986B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0679986B2 (en) | 1994-10-12 |
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