JP5422316B2 - Lightweight mortar construction method and lightweight mortar - Google Patents

Lightweight mortar construction method and lightweight mortar Download PDF

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JP5422316B2
JP5422316B2 JP2009212143A JP2009212143A JP5422316B2 JP 5422316 B2 JP5422316 B2 JP 5422316B2 JP 2009212143 A JP2009212143 A JP 2009212143A JP 2009212143 A JP2009212143 A JP 2009212143A JP 5422316 B2 JP5422316 B2 JP 5422316B2
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泰輔 赤座
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Kikusui Kagaku Kogyo KK
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本発明は、建築物等に施工されるセメント及び樹脂発泡体を含有する軽量モルタルの施工方法に関する。また、その施工方法により施工された軽量モルタルに関する。 The present invention relates to a method for constructing a lightweight mortar containing cement and resin foam to be constructed on a building or the like. Moreover, it is related with the lightweight mortar constructed by the construction method.

従来、セメント及び樹脂発泡体を含有する軽量モルタルは、建築物に断熱材として用いられている。例えば、特許文献1には、セメント、シラスバルーン、及び発泡ウレタン又は発泡ポリスチレン等を含有する断熱材が記載されている。   Conventionally, lightweight mortar containing cement and resin foam has been used as a heat insulating material in buildings. For example, Patent Literature 1 describes a heat insulating material containing cement, shirasu balloon, and urethane foam or polystyrene.

しかし、セメント及び樹脂発泡体を含有する軽量モルタルの硬化性については、十分な検討はされていなかった。   However, sufficient studies have not been made on the curability of lightweight mortar containing cement and resin foam.

一方、セメントを結合材とするモルタルやコンクリートを速やかに硬化させる方法をして、モルタルやコンクリートの施工直前に、それらと液体急結剤とを混合する方法があった(例えば、特許文献2)。   On the other hand, there is a method in which mortar or concrete using cement as a binder is rapidly cured, and the liquid quick setting agent is mixed immediately before mortar or concrete construction (for example, Patent Document 2). .

特開2005−281051号公報(特許請求の範囲等)Japanese Patent Laying-Open No. 2005-281051 (Claims etc.) 特開2002−129895号公報(特許請求の範囲等)JP 2002-129895 A (Claims etc.)

しかしながら、セメント及び樹脂発泡体を含有する軽量モルタルは、施工時には軽量モルタルに含まれるセメントに対して数倍程度の水を含んでおり、また、断熱材として施工される場合には施工厚みが厚いことによって、硬化するのに時間を要した。そして、硬化までに時間を要することによって、硬化するまでの間に自重で垂れてしまう等の問題があった。特に、吹き付けによって施工する場合には、吹き付け用の塗装機への材料の適正を考慮して軽量モルタルの施工時の粘度を低く設定することが多く、このような問題が顕著であった。   However, lightweight mortar containing cement and resin foam contains several times as much water as cement contained in lightweight mortar at the time of construction, and the construction thickness is thick when constructed as a heat insulating material. Therefore, it took time to cure. And since time was required for hardening, there existed problems, such as dripping with dead weight before hardening. In particular, in the case of construction by spraying, the viscosity at the time of construction of the lightweight mortar is often set low considering the appropriateness of the material for the spraying coating machine, and such a problem is remarkable.

また、セメントを結合材とするモルタルやコンクリート等を素早く硬化させる方法は検討されていたが、セメントや樹脂発泡体等を含有する軽量モルタルを素早く硬化させる方法については十分な検討はされていなかった。   In addition, although a method for quickly curing mortar or concrete using cement as a binder has been studied, a method for quickly curing lightweight mortar containing cement or resin foam has not been sufficiently studied. .

本発明は、上記問題点を解決するものであって、セメント及び樹脂発泡体を含有する軽量モルタルを速やかに硬化させる施工方法を提供することを目的としている。   This invention solves the said problem, Comprising: It aims at providing the construction method which hardens the lightweight mortar containing a cement and a resin foam rapidly.

また、速やかに硬化させて得られた前記軽量モルタルであって、自重による垂れがなく、熱伝導率の小さい軽量モルタルを得ることを目的とする。   Another object of the present invention is to obtain a lightweight mortar that is obtained by quickly curing and that does not sag due to its own weight and has a low thermal conductivity.

上記の課題を解決する方法として、請求項1に記載の発明は、セメント、水及び樹脂発泡体を含有するA液と、急結剤としてケイ酸塩を含有するB液とを施工直前に混合する比重0.1〜1.0の軽量モルタルの施工方法であって、A液を圧送する管とB液を圧送する管とを合流させてA液とB液とを混合し、A液とB液の圧送用ポンプの調節によりA液とB液の圧送される量を調整することにより、前記セメントと前記急結剤との混合割合がセメント100質量部に対して急結剤の固形分30〜80質量部となるようにA液とB液とを混合することを特徴とする。
As a method for solving the above-mentioned problem, the invention according to claim 1 is a mixture of a liquid A containing cement , water and a resin foam and a liquid B containing silicate as a quick setting agent immediately before construction. It is a construction method of a lightweight mortar having a specific gravity of 0.1 to 1.0, and the A liquid and the B liquid are joined together by mixing the A liquid and the B liquid, and the A liquid and the B liquid are mixed. By adjusting the pumping amount of the A liquid and the B liquid by adjusting the pump for pumping the B liquid, the mixing ratio of the cement and the quick setting agent is set to a solid content of the quick setting agent with respect to 100 parts by mass of the cement. A liquid and B liquid are mixed so that it may become 30-80 mass parts .

請求項2に記載の発明は、請求項1に記載の軽量モルタルの施工方法において、前記B液中に占める急結剤の固形分の含有量が20〜60質量%であることを特徴とする。   The invention according to claim 2 is characterized in that, in the construction method of the lightweight mortar according to claim 1, the solid content of the quick setting agent in the liquid B is 20 to 60% by mass. .

請求項3に記載の発明は、請求項1又は2に記載の軽量モルタルの施工方法において、前記A液は、前記セメント100質量部に対して前記水を50〜200質量部含有していることを特徴とする。
Invention of Claim 3 is the construction method of the lightweight mortar of Claim 1 or 2, Said A liquid contains 50-200 mass parts of said water with respect to 100 mass parts of said cement. It is characterized by.

請求項5に記載の発明は、請求項1〜4のいずれかの施工方法によって施工された軽量モルタルである。
Invention of Claim 5 is the lightweight mortar constructed by the construction method in any one of Claims 1-4.

請求項1記載の施工方法によれば、セメント、水及び樹脂発泡体を含有するA液を急結剤を含有するB液によって硬化を十分に促進させる施工方法を提供することができ、施工した後のA液とB液との混合物から余剰な急結剤が水と共に染み出すことを防ぐことができる。
According to the construction method of claim 1, it is possible to provide a construction method to sufficiently promote the curing by B solution containing a quick-setting admixture of the A solution containing cement, water and resin foam, construction It is possible to prevent the excessive quick-setting agent from leaking out together with the water from the mixture of the liquid A and the liquid B.

求項に記載の施工方法によれば、請求項1効果に加え、A液とB液との混合物の硬化性を十分に向上させることができると共に、A液とB液の混合後に施工するまでの十分な可使時間を得ることができる。
According to the construction method according to Motomeko 2, in addition to the effect of claim 1, together with a curable mixture of liquid A and liquid B can be sufficiently improved, after mixing liquids A and B Sufficient pot life until construction can be obtained.

請求項に記載の施工方法によれば、請求項1〜の効果に加え、混合が容易で施工作業性にも優れる。
According to the construction method of Claim 3 , in addition to the effect of Claims 1-2 , mixing is easy and it is excellent also in construction workability | operativity.

請求項に記載の軽量モルタルによれば、熱伝導率が小さく、断熱性能に優れた軽量モルタルを得ることができる According to the light weight mortar of the fourth aspect , it is possible to obtain a light weight mortar having a small thermal conductivity and excellent heat insulating performance .

本発明は、セメント及び樹脂発泡体を含有する軽量モルタルの施工方法であって、セメント、水及び樹脂発泡体を含有するA液と、急結剤を含有するB液とを施工直前に混合して得た混合物を施工して硬化させることで軽量モルタルを得ることを特徴とする。前記A液とB液とを施工直前に混合することによって、施工された混合物が速やかに硬化する。   This invention is the construction method of the lightweight mortar containing a cement and a resin foam, Comprising: A liquid containing a cement, water, and a resin foam, and B liquid containing a quick setting agent are mixed just before construction. A lightweight mortar is obtained by applying and curing the mixture obtained in this manner. By mixing the A liquid and the B liquid immediately before the construction, the constructed mixture is quickly cured.

前記軽量モルタルは、見かけ比重0.1〜1.0(特には0.2〜0.5)の軽量モルタルであって、セメントを結合材として樹脂発泡体を含有したものであり、主に建築物等の断熱材として用いられる。見かけ比重が小さすぎるものは、強度が弱く形状が崩れやすく、見かけ比重が大きすぎるものは、熱伝導率が大きく十分な断熱性が得にくい。 The lightweight mortar is a lightweight mortar having an apparent specific gravity of 0.1 to 1.0 (particularly 0.2 to 0.5), which contains a resin foam with cement as a binder, and is mainly used for construction. It is used as a heat insulating material for things. If the apparent specific gravity is too small, the strength is weak and the shape tends to collapse. If the apparent specific gravity is too large, the thermal conductivity is large and it is difficult to obtain sufficient heat insulation.

前記A液は、セメント、水、樹脂発泡体、及びその他の充填材や添加剤を混合して得られる流動体であり、水の含有量は好ましくはセメント100質量部に対して50〜200質量部程度である。水の含有量がこの範囲であれば、混合が容易で施工作業性にも優れる。   The liquid A is a fluid obtained by mixing cement, water, a resin foam, and other fillers and additives, and the water content is preferably 50 to 200 mass with respect to 100 mass parts of cement. About a part. When the water content is within this range, mixing is easy and the workability is excellent.

前記セメントは、水硬性のセメントであれば特に限定されず、例えば、普通ポルトランドセメント、早強ポルトランドセメント、超早強ポルトランドセメント、中庸熱ポルトランドセメント、低熱ポルトランドセメント、耐硫酸塩ポルトランドセメント、高炉セメント、フライアッシュセメント、白色ポルトランドセメント、超微粒子セメント、高ビーライト系セメント、超速硬セメント、アルミナセメント、エコセメント等の各種セメントを用いることができる。   The cement is not particularly limited as long as it is a hydraulic cement. For example, normal Portland cement, early-strength Portland cement, ultra-early strength Portland cement, medium heat Portland cement, low heat Portland cement, sulfate-resistant Portland cement, blast furnace cement Various cements such as fly ash cement, white Portland cement, ultrafine particle cement, high belite cement, ultrafast cement, alumina cement, and ecocement can be used.

前記樹脂発泡体は、合成樹脂を発泡させて得られる多孔質体である。例えば、発泡ポリスチレン、発泡ウレタン、発泡フェノール、発泡ポリエチレン、発泡ポリプロピレンなどを用いることができる。また、これらの樹脂発泡体が見かけ比重0.015〜0.5のものであれば、比重0.1〜1.0の軽量モルタルを容易に得ることができる。見かけ比重が0.015未満の樹脂発泡体は、骨材が脆く、セメントや水等と混合する際に破損しやすい。また、見かけ比重が0.3を超える樹脂発泡体は、軽量モルタル中に閉める樹脂発泡体の容積を多くする必要があるために、モルタルを効率よく軽量化できない。また、軽量モルタル中に閉める樹脂発泡体の容積が多くなると軽量モルタルの曲げ強度が低下する。   The resin foam is a porous body obtained by foaming a synthetic resin. For example, foamed polystyrene, foamed urethane, foamed phenol, foamed polyethylene, foamed polypropylene, or the like can be used. Further, if these resin foams have an apparent specific gravity of 0.015 to 0.5, a lightweight mortar having a specific gravity of 0.1 to 1.0 can be easily obtained. A resin foam having an apparent specific gravity of less than 0.015 is brittle in aggregate and easily breaks when mixed with cement or water. In addition, a resin foam having an apparent specific gravity of more than 0.3 needs to increase the volume of the resin foam to be closed in the light weight mortar, so that the weight of the mortar cannot be reduced efficiently. Moreover, if the volume of the resin foam closed in a lightweight mortar increases, the bending strength of a lightweight mortar will fall.

前記樹脂発泡体のなかでも、本発明の施工方法で施工される軽量モルタルには、発泡ポリスチレンを用いることが好ましい。発泡ポリスチレンを用いれば、A液の混合時、又はA液とB液との混合時に樹脂発泡体が変形や破損することが少ない。特に、A液を管で圧送する際に樹脂発泡体が圧力で収縮してしまう場合があるが、発泡ポリスチレンを用いればこのような収縮を抑制することができる。 Among the resin foams, it is preferable to use foamed polystyrene for the lightweight mortar constructed by the construction method of the present invention. If foamed polystyrene is used, the resin foam is less likely to be deformed or damaged when the A liquid is mixed or when the A liquid and the B liquid are mixed. In particular, when the liquid A is pumped by a pipe, the resin foam may shrink due to pressure, but such foaming can be suppressed by using foamed polystyrene.

なお、発泡ポリスチレンは、発泡させたポリスチレンであれば、発泡手段、成形方法等は特に限定されない。例えば、ビーズ法発泡ポリスチレン(EPS) 、押出発泡ポリスチレン(XPS)等を用いることができる。これらは所定の粒子径にするために、成型体を破砕して用いても良いし、成型前の予備発泡ビーズを用いても良い。また、発泡倍率10倍未満の低発泡のものや発泡倍率10〜70倍の高発泡のものを用いることができる。 In addition, if a foamed polystyrene is a foamed polystyrene, a foaming means, a shaping | molding method, etc. will not be specifically limited. For example, bead method expanded polystyrene (EPS), extruded expanded polystyrene (XPS), etc. can be used. In order to obtain a predetermined particle diameter, these may be used by crushing the molded body, or pre-expanded beads before molding may be used. Moreover, the low foaming thing of foaming ratio less than 10 times and the high foaming thing of 10 to 70 times foaming ratio can be used.

また、前記樹脂発泡体は、粒子状のものであることが好ましく、その平均粒子径が0.5〜15mmの範囲にあることが好ましく、1〜10mmの範囲にあることがより好ましく、2〜8mmの範囲にあることが特に好ましい。平均粒子径が小さすぎると、樹脂発泡体の比表面積が大きくなることで、A液の混合時、又はA液とB液との混合時に、A液、又はA液とB液との混合物の混練が困難になる場合がある。このような場合は、水を多く加えるなどして混練し易くすることもできるが、そのような処置を行うと硬化して得られる軽量モルタルの強度が弱くなってしまう場合がある。逆に、平均粒子径が大きすぎると、A液とB液とを短時間で十分に混合しにくくなる。特に、A液を圧送する管とB液を圧送する管とを合流させてA液とB液とを混合する場合には、A液とB液とを十分に混合しにくい。また、樹脂発泡体の平均粒子径が大きすぎると、A液を管で圧送する際に管内で樹脂発泡体の詰まりが起こりやすくなる。 The resin foam is preferably in the form of particles, the average particle diameter is preferably in the range of 0.5 to 15 mm, more preferably in the range of 1 to 10 mm, A range of 8 mm is particularly preferable. If the average particle size is too small, the specific surface area of the resin foam is increased, so that when the liquid A is mixed or when the liquid A and the liquid B are mixed, the liquid A or the mixture of the liquid A and the liquid B Kneading may be difficult. In such a case, it may be easy to knead by adding a lot of water or the like, but if such treatment is performed, the strength of the lightweight mortar obtained by curing may be weakened. Conversely, if the average particle size is too large, it becomes difficult to sufficiently mix the liquid A and the liquid B in a short time. In particular, when the A liquid and the B liquid are mixed by joining a pipe for pumping the A liquid and a pipe for pumping the B liquid, it is difficult to sufficiently mix the A liquid and the B liquid. On the other hand, if the average particle size of the resin foam is too large, clogging of the resin foam tends to occur in the pipe when the liquid A is pumped through the pipe.

また、前記軽量モルタルに占める樹脂発泡体の含有量は、軽量モルタル100容量部に対して、樹脂発泡体50〜90容量部が好ましい。樹脂発泡体の含有量がこの範囲にあれば、比重0.1〜1.0の軽量モルタルを容易に得ることができる。   The resin foam content in the lightweight mortar is preferably 50 to 90 parts by volume of the resin foam with respect to 100 parts by weight of the lightweight mortar. If the content of the resin foam is within this range, a lightweight mortar having a specific gravity of 0.1 to 1.0 can be easily obtained.

また、前記A液には、配合物として、セメントと樹脂発泡体以外にも、充填材や添加剤を含有させてもよい。充填材や添加剤としては、通常のモルタル、軽量モルタルに用いるものを適宜で用いればよい。 Moreover, you may make the said A liquid contain a filler and an additive other than cement and a resin foam as a compound. What is necessary is just to use suitably what is used for a normal mortar and a lightweight mortar as a filler and an additive.

前記充填材としては、例えば、川砂、珪砂、寒水砂、陶磁器粉砕物、ガラス粉砕物、炭酸カルシウム等の無機粉粒体、及び、パーライト、バーミキュライト、シラスバルーン、ガラス発泡体、珪藻土等の軽量無機骨材等の無機充填材、樹脂粒子、中空樹脂粒子等の有機充填材、ロックウール、スラグウール、ガラス繊維等の無機繊維、アクリル繊維、ビニロン繊維、ポリアミド繊維、芳香族ポリアミド繊維、ポリエステル繊維等の有機繊維を適宜で用いることができる。   Examples of the filler include inorganic particles such as river sand, quartz sand, cold water sand, ceramic pulverized material, glass pulverized material, calcium carbonate, and lightweight inorganic materials such as perlite, vermiculite, shirasu balloon, glass foam, diatomaceous earth, and the like. Inorganic fillers such as aggregates, organic fillers such as resin particles and hollow resin particles, inorganic fibers such as rock wool, slag wool, and glass fibers, acrylic fibers, vinylon fibers, polyamide fibers, aromatic polyamide fibers, polyester fibers, etc. These organic fibers can be used as appropriate.

前記添加剤としては、例えば、結合材となる合成樹脂(合成樹脂エマルション、再乳化型粉末樹脂等)、増粘剤、吸水防止剤、撥水剤、減水剤、流動化剤、保水剤等を適宜で用いることができる。   Examples of the additive include a synthetic resin (synthetic resin emulsion, re-emulsification type powder resin, etc.), a thickener, a water absorption inhibitor, a water repellent, a water reducing agent, a fluidizing agent, a water retention agent, and the like serving as a binder. It can be used as appropriate.

前記B液は、急結剤を含有する流動体である。   The B liquid is a fluid containing a quick setting agent.

前記急結剤は、B液をA液と混合した際に、A液中のセメントと反応して、
B液とA液との混合物の流動性がなくし、B液とA液との混合物を硬化させる物質である。具体的には、ケイ酸ナトリウム、ケイ酸カリウムなどのケイ酸塩、アルミン酸ナトリウム、アルミン酸カリウム、アルミン酸カルシウムなどのアルミン酸塩、硫酸ナトリウム、硫酸カリウム、硫酸マグネシウムなどの硫酸塩、CaO・Al23、12CaO・7Al23、CaO・2Al23、3CaO・Al23、3CaO・3Al23・CaF2、11CaO・7Al23・CaF2などのカルシウムアルミネート類、酸化カルシウム、水酸化カルシウム、塩化カルシウムなどのカルシウム塩、またはコロイダルシリカから選ばれる1種以上が好ましく使用される。また、これらをB液に含有させる際には、これらを直接添加してもよく、これらの水溶液等を添加してもよい。
The quick setting agent reacts with the cement in the liquid A when the liquid B is mixed with the liquid A,
It is a substance that eliminates the fluidity of the mixture of the B liquid and the A liquid and cures the mixture of the B liquid and the A liquid. Specifically, silicates such as sodium silicate and potassium silicate, aluminates such as sodium aluminate, potassium aluminate and calcium aluminate, sulfates such as sodium sulfate, potassium sulfate and magnesium sulfate, CaO · Al 2 O 3, 12CaO · 7Al 2 O 3, CaO · 2Al 2 O 3, 3CaO · Al 2 O 3, 3CaO · 3Al 2 O 3 · CaF 2, calcium aluminate such as 11CaO · 7Al 2 O 3 · CaF 2 One or more selected from calcium salts such as calcium oxide, calcium hydroxide, calcium hydroxide and calcium chloride, or colloidal silica is preferably used. Moreover, when making these contain in B liquid, these may be added directly and these aqueous solutions etc. may be added.

これらの急結剤のなかでも、ケイ酸塩を用いることで、B液とA液との混合物の硬化を特に早くできるので、急結剤としてケイ酸塩を用いることが好ましい。   Among these quick setting agents, it is preferable to use silicate as the quick setting agent because the use of silicate can particularly quickly cure the mixture of the B liquid and the A liquid.

また、前記B液には、配合物として、前記急結剤以外にも水や添加剤を含有してもよい。   Moreover, in the said B liquid, you may contain water and an additive other than the said quick setting agent as a compound.

なお、B液中に占める急結剤の固形分は、20〜60質量%が好ましく、30〜50質量%がより好ましい。前記含有量が少なすぎると、A液とB液との混合物の硬化性を十分に向上させることができず、混合物の硬化に時間がかかってしまう。逆に、前記含有量が多すぎると、A液とB液との混合中に急激に硬化が進んでしまい、A液とB液を十分に混合できない場合がある。また、硬化が早すぎるために混合後に施工するまでの十分な可使時間が得られない。   In addition, 20-60 mass% is preferable and, as for the solid content of the quick setting agent which occupies in B liquid, 30-50 mass% is more preferable. When there is too little said content, the sclerosis | hardenability of the mixture of A liquid and B liquid cannot fully be improved, but it will take time for hardening of a mixture. Conversely, if the content is too large, curing proceeds rapidly during mixing of the A liquid and the B liquid, and the A liquid and the B liquid may not be sufficiently mixed. Moreover, since hardening is too early, sufficient pot life until construction after mixing cannot be obtained.

前記A液とB液とを混合する方法としては、A液とB液とを同じ容器に投入して攪拌する方法がある。また、A液とB液とを別々の管で圧送し、A液を圧送する管とB液を圧送する管とを合流させることによってA液とB液とを混合する方法を用いることもできる。   As a method of mixing the A liquid and the B liquid, there is a method in which the A liquid and the B liquid are put into the same container and stirred. Further, it is also possible to use a method of mixing the A liquid and the B liquid by pumping the A liquid and the B liquid through separate pipes, and joining the pipe feeding the A liquid and the pipe feeding the B liquid together. .

A液とB液とを同じ容器に投入して攪拌する方法としては、例えば、モルタルミキサー等の攪拌機を用いる方法がある。しかし、このような混合方法は、一度に大量の材料を混合するのに適しているが、少量の材料を混合するには適していない。A液とB液との混合物は硬化が早いので混合後は短時間で施工しなければなないため大量に攪拌する必要はない。即ち、A液とB液とを混合したら硬化する前に短時間で施工する必要があるが、一度の大量に混合してしまうと、混合したものを短時間で施工することが困難な場合がある。 As a method of adding and stirring the A liquid and the B liquid in the same container, for example, there is a method of using a stirrer such as a mortar mixer. However, such a mixing method is suitable for mixing a large amount of material at a time, but is not suitable for mixing a small amount of material. Since the mixture of the liquid A and the liquid B is hardened quickly, it must be applied in a short time after mixing, so it is not necessary to stir in large quantities. In other words, it is necessary to apply the solution in a short time before curing after mixing the liquid A and the liquid B, but once mixed in a large amount, it may be difficult to apply the mixed material in a short time. is there.

従って、A液とB液とを混合する方法は、短時間で施工可能な量のだけを混合するのに適した方法を採用することが好ましい。そのような方法として、A液を圧送する管とB液を圧送する管とを合流させる方法を用いることが好ましい。この方法によれば、A液とB液とを必要な量だけ混合させることが容易である。
この方法では、合流したA液とB液とを混合するため、圧送する量を調整することによって、A液とB液とを必要な量のみ混合することができる。また、A液とB液を圧送する速度を調整すれば、必要な量を随時混合することもできる。
Therefore, it is preferable to adopt a method suitable for mixing only the amount that can be applied in a short time as a method of mixing the A liquid and the B liquid. As such a method, it is preferable to use a method in which a pipe for feeding A liquid and a pipe for feeding B liquid are merged. According to this method, it is easy to mix the A liquid and the B liquid in a necessary amount.
In this method, since the merged liquid A and liquid B are mixed, the liquid A and liquid B can be mixed only in a necessary amount by adjusting the amount to be pumped. Moreover, if the speed which pumps A liquid and B liquid is adjusted, a required quantity can also be mixed at any time.

更に、A液を圧送する管とB液を圧送する管とを合流させた管の出口に吹付けノズルを取り付けて、A液とB液との混合物を吹き付け施工することもできる。この方法によれば、A液とB液とを混合した後にそれらの混合物は直ぐに吹付け施工されるため、A液とB液との混合物を混合後に短時間で施工することができる。なお、この方法を採用する場合は、管の出口の直前でA液を圧送する管とB液を圧送する管とを合流させることがより好ましい。   Furthermore, it is possible to attach a spray nozzle to the outlet of a pipe where the pipe for pumping the A liquid and the pipe for pumping the B liquid are joined, and spray the mixture of the A liquid and the B liquid. According to this method, since the mixture of A liquid and B liquid is sprayed immediately after mixing, the mixture of A liquid and B liquid can be applied in a short time after mixing. In the case of adopting this method, it is more preferable to join the pipe for pumping the A liquid and the pipe for pumping the B liquid immediately before the outlet of the pipe.

A液を圧送する管とB液を圧送する管とを合流させたものとしては、例えば、図1(a)や図1(b)に示すものが挙げられる。 As what combined the pipe | tube which pumps A liquid and the pipe | tube which pumps B liquid, what is shown to Fig.1 (a) and FIG.1 (b) is mentioned, for example.

図1(a)や図1(b)は、A液を圧送する管11とB液を圧送する管12とが合流し、合流後の管13の部分でA液とB液が混合され、管13の出口からはA液とB液との混合物が排出される。更に、管13の出口に吹付けノズルを取り付けて、A液とB液との混合物を混合直後に吹き付け施工することもできる。 In FIG. 1 (a) and FIG. 1 (b), the pipe 11 for pumping the liquid A and the pipe 12 for pumping the liquid B merge, and the liquid A and the liquid B are mixed in the portion of the pipe 13 after the merge. A mixture of the liquid A and the liquid B is discharged from the outlet of the tube 13. Further, it is possible to attach a spray nozzle to the outlet of the pipe 13 and spray the mixture of the liquid A and the liquid B immediately after mixing.

なお、A液を圧送する管とB液を圧送する管とを合流させることによってA液とB液とを混合する方法を採用した場合には、A液とB液とを、A液中のセメントとB液中の急結剤との混合割合がセメント100質量部に対して急結剤の固形分20〜90質量部となるような割合で混合することが好ましく、急結剤の固形分30〜80質量部となるような割合で混合することがより好ましい。急結剤の固形分の割合がセメント100質量部に対して20質量部未満であると、合流させることによるA液とB液とを混合が不十分で、A液とB液との混合物の硬化を十分に促進させることができない。具体的には、施工された混合物の硬化速度にムラあり、硬化が遅い部分が生じる。逆に、急結剤の固形分の割合がセメント100質量部に対して90質量部を超えると、A液とB液との混合中に硬化が進んでしまい、A液とB液を十分に混合できない。また、硬化が早すぎるために合流後の管内で硬化してしまい、管の詰まりが発生する場合がある。また、施工した後のA液とB液との混合物から余剰な急結剤が水と共に染み出し、軽量モルタルの表面に急結剤の層ができてしまう場合がある。 In addition, when the method of mixing A liquid and B liquid by joining the pipe | tube which pumps A liquid and the pipe | tube which pumps B liquid is employ | adopted, A liquid and B liquid are mixed in A liquid. It is preferable that the mixing ratio of the cement and the rapid setting agent in the B liquid is mixed so that the solid content of the quick setting agent is 20 to 90 parts by mass with respect to 100 parts by mass of the cement. It is more preferable to mix at a ratio of 30 to 80 parts by mass. When the ratio of the solid content of the quick setting agent is less than 20 parts by mass with respect to 100 parts by mass of the cement, the mixing of the liquid A and the liquid B is insufficient, and the mixture of the liquid A and the liquid B Curing cannot be promoted sufficiently. Specifically, the curing rate of the applied mixture is uneven, and a part where the curing is slow occurs. On the contrary, when the ratio of the solid content of the quick setting agent exceeds 90 parts by mass with respect to 100 parts by mass of the cement, curing proceeds during mixing of the liquid A and the liquid B, and the liquid A and the liquid B are sufficiently obtained. Cannot mix. Moreover, since hardening is too early, it hardens | cures in the pipe | tube after merging, and a pipe | tube may generate | occur | produce clogging. Moreover, the surplus quick-setting agent oozes out with water from the mixture of A liquid and B liquid after construction, and the layer of quick-setting agent may be formed on the surface of a lightweight mortar.

また、急結剤の固形分の割合がセメント100質量部に対して90質量部を超えると、A液とB液との混合物を硬化させて得られる軽量モルタルの熱伝導率が大きくなり、この軽量モルタルの断熱性能を低下させてしまう。急結剤の固形分の割合がセメント100質量部に対して90質量部以下であれば、熱伝導率が小さく、断熱性能に優れた軽量モルタルを得ることができる。 Further, when the solid content ratio of the quick setting agent exceeds 90 parts by mass with respect to 100 parts by mass of cement, the thermal conductivity of the lightweight mortar obtained by curing the mixture of the liquid A and the liquid B increases. The heat insulation performance of lightweight mortar will be reduced. When the ratio of the solid content of the quick setting agent is 90 parts by mass or less with respect to 100 parts by mass of cement, a lightweight mortar having a low thermal conductivity and excellent heat insulating performance can be obtained.

A液とB液との混合物を建築物等に対して施工する方法としては、吹き付けによる施工に限定されるものではなく、ローラーや籠手等の施工用具を用いて塗り付ける方法などを採用することができる。   As a method of constructing a mixture of Liquid A and Liquid B on a building, etc., it is not limited to the construction by spraying, but adopting a method of painting using construction tools such as a roller and a rower. Can do.

図2に概要を示す装置を用いて、軽量モルタルを施工した。
図2は、A液収容器21に収容したA液と、B液収容器22に収容したB液とを混合してコンクリートの壁面50に吹き付ける装置の概要を示したものである。
施工する際には、A液圧送用のポンプ31によってA液圧送用の管11にA液を送り込み、同時にB液圧送用のポンプ32によってB液圧送用の管12にB液を送り込み、更にコンプレッサー33からは空気用の管34に吹付けノズル14からA液とB液の混合物を噴出すための空気を送りこむ。
そうすることによって、まず管12に管34が合流してB液と空気とが混ざりあい、それが管11と合流してA液とB液とが混合される。以上のように得られたA液とB液との混合物23は、管の出口に取り付けられた吹付けノズル14から壁面50に向かって噴射され吹付けられる。
この際、ポンプ31やポンプ32を調節することによって、A液とB液が圧送される量を調整することもできる。また、コンプレッサー33により圧縮される空気の圧力は、吹付ける材料の性状に合わせて調整することができる。
A lightweight mortar was constructed using the apparatus outlined in FIG.
FIG. 2 shows an outline of an apparatus for mixing the A liquid accommodated in the A liquid container 21 and the B liquid accommodated in the B liquid container 22 and spraying them on the concrete wall surface 50.
At the time of construction, the A liquid is sent to the A liquid pressure feed pipe 11 by the A liquid pressure feed pump 31, and at the same time, the B liquid is sent to the B liquid pressure feed pipe 12 by the B liquid pressure feed pump 32. From the compressor 33, air for injecting a mixture of the liquid A and the liquid B from the spray nozzle 14 is sent to the air pipe 34.
By doing so, the pipe 34 first joins the pipe 12 so that the B liquid and the air mix, and it joins the pipe 11 to mix the A liquid and the B liquid. The mixture 23 of the A liquid and the B liquid obtained as described above is sprayed and sprayed from the spray nozzle 14 attached to the outlet of the pipe toward the wall surface 50.
At this time, by adjusting the pump 31 and the pump 32, the amount of liquid A and liquid B can be adjusted. Moreover, the pressure of the air compressed by the compressor 33 can be adjusted according to the property of the material to spray.

この装置を用いての軽量モルタルの施工を以下の手順で行った。 Construction of lightweight mortar using this apparatus was performed according to the following procedure.

(実施例1)
まず、各材料を下記の配合割合で混合したA液を製造して、A液収容器21にA液を収容した。
A液の配合:普通ポルトランドセメント 100質量部、パーライト 20質量部、再乳化型アクリル樹脂粉末 5質量部、ビニロン繊維 3質量部、発泡ポリスチレン(平均粒子径4mm、発泡倍率40倍) 12質量部、水 80質量部。
Example 1
First, A liquid which mixed each material with the following compounding ratio was manufactured, and A liquid was accommodated in the A liquid container 21.
Formulation of liquid A: ordinary Portland cement 100 parts by mass, pearlite 20 parts by mass, re-emulsifying acrylic resin powder 5 parts by mass, vinylon fiber 3 parts by mass, expanded polystyrene (average particle diameter 4 mm, expansion ratio 40 times) 12 parts by mass, 80 parts by weight of water.

次に、急結剤としてケイ酸ナトリウムを含有したB液を製造した。ケイ酸ナトリウムとして珪酸ソーダ3号(固形分40質量%)を使用し、これに水を加えてケイ酸ナトリウムの固形分を37質量%に調整したものをB液とし、B液収容器22に収容した。   Next, B liquid containing sodium silicate as a quick setting agent was manufactured. Sodium silicate 3 (solid content: 40% by mass) was used as sodium silicate, and water was added to adjust the solid content of sodium silicate to 37% by mass. Accommodated.

次に、ポンプ31、ポンプ32を調節して、A液の単位時間当たりの圧送量とB液の単位時間当たりの圧送量とを調整した。圧送されるA液中のセメントの単位時間当たりの圧送量は2kg/分、圧送されるB液中のケイ酸ナトリウム(固形分)の単位時間当たりの圧送量は1kg/分であった。   Next, the pump 31 and the pump 32 were adjusted to adjust the pumping amount per unit time of the A liquid and the pumping amount per unit time of the B liquid. The pumping amount per unit time of the cement in the liquid A being pumped was 2 kg / min, and the pumping amount per unit time of the sodium silicate (solid content) in the liquid B being pumped was 1 kg / min.

そして、ポンプ31、ポンプ32、及びコンプレッサー33を稼動して、A液とB液とを圧送し、A液とB液とを合流させて混合して、その混合物23を吹付けノズル14から壁面50に約4cmの厚みで吹付けた。 And the pump 31, the pump 32, and the compressor 33 are operated, A liquid and B liquid are pumped, A liquid and B liquid are merged and mixed, and the mixture 23 is sprayed from the spray nozzle 14 to the wall surface. 50 was sprayed at a thickness of about 4 cm.

吹付けられた混合物23は、吹き付け後、約3分で硬化した。混合物23が素早く硬化したことによって、壁面50に吹付けられた混合物23には自重による垂れ等の不具合は見られなかった。
更に、温度23℃、湿度60%の環境下で14日間養生して混合物23を乾燥硬化させて、軽量モルタルを得た。
The sprayed mixture 23 hardened in about 3 minutes after spraying. Due to the rapid curing of the mixture 23, the mixture 23 sprayed on the wall surface 50 did not show any defects such as sagging due to its own weight.
Furthermore, it was cured for 14 days in an environment of a temperature of 23 ° C. and a humidity of 60%, and the mixture 23 was dried and cured to obtain a lightweight mortar.

(実施例2)
実施例1の施工がすんだ後、ポンプ31はそのままで、ポンプ32のみを調節して、B液の単位時間当たりの圧送量を調整した。圧送されるB液中のケイ酸ナトリウム(固形分)の単位時間当たりの圧送量は0.6kg/分であった。
(Example 2)
After the construction of Example 1 was completed, the pump 31 was left as it was, and only the pump 32 was adjusted to adjust the pumping amount per unit time of the B liquid. The pumping amount per unit time of sodium silicate (solid content) in the liquid B to be pumped was 0.6 kg / min.

そして、ポンプ31、ポンプ32、及びコンプレッサー33を稼動して、A液とB液とを圧送し、A液とB液とを合流させて混合して、その混合物23を吹付けノズル14から壁面50に約4cmの厚みで吹付けた。 And the pump 31, the pump 32, and the compressor 33 are operated, A liquid and B liquid are pumped, A liquid and B liquid are merged and mixed, and the mixture 23 is sprayed from the spray nozzle 14 to the wall surface. 50 was sprayed at a thickness of about 4 cm.

吹付けられた混合物23は、吹き付け後、約5分で硬化した。混合物23が素早く硬化したことによって、壁面50に吹付けられた混合物23には自重による垂れ等の不具合は見られなかった。
更に、温度23℃、湿度60%の環境下で14日間養生して混合物23を乾燥硬化させて、軽量モルタルを得た。
The sprayed mixture 23 hardened in about 5 minutes after spraying. Due to the rapid curing of the mixture 23, the mixture 23 sprayed on the wall surface 50 did not show any defects such as sagging due to its own weight.
Furthermore, it was cured for 14 days in an environment of a temperature of 23 ° C. and a humidity of 60%, and the mixture 23 was dried and cured to obtain a lightweight mortar.

(実施例3)
実施例2の施工がすんだ後、ポンプ31はそのままで、ポンプ32のみを調節して、B液の単位時間当たりの圧送量を調整した。圧送されるB液中のケイ酸ナトリウム(固形分)の単位時間当たりの圧送量は1.6kg/分であった。
(Example 3)
After the construction of Example 2 was completed, the pump 31 was left as it was, and only the pump 32 was adjusted to adjust the pumping amount per unit time of the B liquid. The pumping amount per unit time of sodium silicate (solid content) in the liquid B to be pumped was 1.6 kg / min.

そして、ポンプ31、ポンプ32、及びコンプレッサー33を稼動して、A液とB液とを圧送し、A液とB液とを合流させて混合して、その混合物23を吹付けノズル14から壁面50に約4cmの厚みで吹付けた。 And the pump 31, the pump 32, and the compressor 33 are operated, A liquid and B liquid are pumped, A liquid and B liquid are merged and mixed, and the mixture 23 is sprayed from the spray nozzle 14 to the wall surface. 50 was sprayed at a thickness of about 4 cm.

吹付けられた混合物23は、吹き付け後、約2分で硬化した。混合物23が素早く硬化したことによって、壁面50に吹付けられた混合物23には自重による垂れ等の不具合は見られなかった。
更に、温度23℃、湿度60%の環境下で14日間養生して混合物23を乾燥硬化させて、軽量モルタルを得た。
The sprayed mixture 23 hardened in about 2 minutes after spraying. Due to the rapid curing of the mixture 23, the mixture 23 sprayed on the wall surface 50 did not show any defects such as sagging due to its own weight.
Furthermore, it was cured for 14 days in an environment of a temperature of 23 ° C. and a humidity of 60%, and the mixture 23 was dried and cured to obtain a lightweight mortar.

(比較例1)
実施例3の施工がすんだ後、ポンプ31はそのままで、ポンプ32のみを調節して、B液の単位時間当たりの圧送量を調整した。圧送されるB液中のケイ酸ナトリウム(固形分)の単位時間当たりの圧送量は0.3kg/分であった。
(Comparative Example 1)
After the construction of Example 3 was completed, the pump 31 was left as it was, and only the pump 32 was adjusted to adjust the pumping amount per unit time of the B liquid. The pumping amount per unit time of sodium silicate (solid content) in the liquid B to be pumped was 0.3 kg / min.

そして、ポンプ31、ポンプ32、及びコンプレッサー33を稼動して、A液とB液とを圧送し、A液とB液とを合流させて混合して、その混合物23を吹付けノズル14から壁面50に約4cmの厚みで吹付けた。 And the pump 31, the pump 32, and the compressor 33 are operated, A liquid and B liquid are pumped, A liquid and B liquid are merged and mixed, and the mixture 23 is sprayed from the spray nozzle 14 to the wall surface. 50 was sprayed at a thickness of about 4 cm.

吹付けられた混合物23は短時間で十分に硬化しなかったため、壁面50に吹付けられた混合物23には自重による垂れ見られ、更に自重によって壁面50の下方向に数センチずれ落ちた。
更に、温度23℃、湿度60%の環境下で14日間養生して混合物23を乾燥硬化させて、軽量モルタルを得た。
Since the sprayed mixture 23 did not sufficiently harden in a short time, the mixture 23 sprayed onto the wall surface 50 was found to sag due to its own weight, and further fell several centimeters downward from the wall surface 50 due to its own weight.
Furthermore, it was cured for 14 days in an environment of a temperature of 23 ° C. and a humidity of 60%, and the mixture 23 was dried and cured to obtain a lightweight mortar.

(比較例2)
比較例1の施工がすんだ後、ポンプ31はそのままで、ポンプ32のみを調節して、B液の単位時間当たりの圧送量を調整した。圧送されるB液中のケイ酸ナトリウム(固形分)の単位時間当たりの圧送量は2kg/分であった。
(Comparative Example 2)
After the construction of Comparative Example 1 was completed, the pump 31 was left as it was, and only the pump 32 was adjusted to adjust the pumping amount per unit time of the B liquid. The pumping amount per unit time of sodium silicate (solid content) in the liquid B to be pumped was 2 kg / min.

そして、ポンプ31、ポンプ32、及びコンプレッサー33を稼動して、A液とB液とを圧送し、A液とB液とを合流させて混合して、その混合物23を吹付けノズル14から壁面50に約4cmの厚みで吹付けた。 And the pump 31, the pump 32, and the compressor 33 are operated, A liquid and B liquid are pumped, A liquid and B liquid are merged and mixed, and the mixture 23 is sprayed from the spray nozzle 14 to the wall surface. 50 was sprayed at a thickness of about 4 cm.

吹付けられた混合物23は、吹き付け後、約2分で硬化した。混合物23が素早く硬化したことによって、壁面50に吹付けられた混合物23には自重による垂れは見られなかった。しかし、吹き付けの30分後には、余剰な珪酸ソーダが混合物23の表面に染み出してきて、混合物23表面を垂れ落ちていた。
更に、温度23℃、湿度60%の環境下で14日間養生して混合物23を乾燥硬化させて、軽量モルタルを得た。
The sprayed mixture 23 hardened in about 2 minutes after spraying. Due to the rapid curing of the mixture 23, no dripping due to its own weight was observed in the mixture 23 sprayed on the wall surface 50. However, 30 minutes after the spraying, surplus sodium silicate oozed out on the surface of the mixture 23 and dripped down the surface of the mixture 23.
Furthermore, it was cured for 14 days in an environment of a temperature of 23 ° C. and a humidity of 60%, and the mixture 23 was dried and cured to obtain a lightweight mortar.

(比較例3)
比較例2の施工がすんだ後、B液収容器22中のB液を廃棄して、B液収容器22にB液に替えて水を収容した。その後、ポンプ31はそのままで、ポンプ32のみを調節して、水の単位時間当たりの圧送量を調整した。水の単位時間当たりの圧送量は2kg/分であった。
(Comparative Example 3)
After the construction of Comparative Example 2 was completed, the B liquid in the B liquid container 22 was discarded, and water was stored in the B liquid container 22 instead of the B liquid. Thereafter, the pump 31 was left as it was, and only the pump 32 was adjusted to adjust the pumping amount of water per unit time. The pumping amount of water per unit time was 2 kg / min.

そして、ポンプ31、ポンプ32、及びコンプレッサー33を稼動して、A液と水とを圧送し、A液と水とを合流させて混合して、その混合物23を吹付けノズル14から壁面50に約4cmの厚みで吹付けた。 And the pump 31, the pump 32, and the compressor 33 are operated, A liquid and water are pumped, A liquid and water are merged and mixed, The mixture 23 is sprayed from the spray nozzle 14 to the wall surface 50. Sprayed with a thickness of about 4 cm.

吹付けられた混合物23は6時間を経過しても十分に硬化せず、壁面50に吹付けられた混合物23には自重による垂れ見られ、更に自重によって壁面50の下方向に十数センチずれ落ちた。
更に、温度23℃、湿度60%の環境下で14日間養生して混合物23を乾燥硬化させて、軽量モルタルを得た。
The sprayed mixture 23 does not sufficiently cure even after 6 hours, and the mixture 23 sprayed on the wall surface 50 is drooped by its own weight, and is further shifted by a few tens of centimeters downward from the wall surface 50 by its own weight. fell.
Furthermore, it was cured for 14 days in an environment of a temperature of 23 ° C. and a humidity of 60%, and the mixture 23 was dried and cured to obtain a lightweight mortar.

以上のように、A液とB液とを適量で混合して施工した場合には、混合物23は素早く硬化して、不具合は発生しなかった。しかし、A液中のセメントの量に対してB液中の急結剤の量が少なすぎると、十分に硬化しないという不具合が生じた。また、A液中のセメントの量に対してB液中の急結剤の量が多すぎると、余剰な急結剤が混合物23の表面に染み出してくるという不具合が生じた。   As described above, when the A liquid and the B liquid were mixed and applied in an appropriate amount, the mixture 23 hardened quickly and no malfunction occurred. However, if the amount of the quick setting agent in the B liquid is too small relative to the amount of the cement in the A liquid, there is a problem in that it does not cure sufficiently. Moreover, when there was too much quantity of the quick setting agent in B liquid with respect to the quantity of the cement in A liquid, the malfunction that the excess quick setting agent oozed out on the surface of the mixture 23 arose.

次に、前記実施例1〜3、及び比較例1〜3で得られた軽量モルタルの比重と熱伝導率を測定した。その測定結果を以下の表1に示す。   Next, the specific gravity and thermal conductivity of the lightweight mortar obtained in Examples 1 to 3 and Comparative Examples 1 to 3 were measured. The measurement results are shown in Table 1 below.

表1に示されるように、実施例1〜3の軽量モルタル、急結剤を使用していない比較例3の軽量モルタル、及びセメントに対する急結剤の混合割合が小さい比較例1の軽量モルタルでは、熱伝導率に大きな差はなかったが、セメントに対する急結剤の混合割合が大きい比較例2の軽量モルタルは、それらの軽量モルタルに比べて熱伝導率が急激に大きくなった。
As shown in Table 1, in the lightweight mortars of Examples 1 to 3, the lightweight mortar of Comparative Example 3 that does not use an accelerating agent, and the lightweight mortar of Comparative Example 1 in which the mixing ratio of the accelerating agent to cement is small. Although there was no big difference in thermal conductivity, the thermal conductivity of the light weight mortar of Comparative Example 2 in which the mixing ratio of the quick setting agent to the cement was large was rapidly increased as compared with those lightweight mortars.

A液を圧送する管とB液を圧送する管とが合流してA液とB液とを混合する部分の管の断面の概略を示す断面図Sectional drawing which shows the outline of the cross section of the pipe | tube of the part which the pipe | tube which pumps A liquid and the pipe which pumps B liquid merge, and mixes A liquid and B liquid 本願の軽量モルタルの施工に用いる吹き付ける装置の概要を示す概略模式図Schematic diagram showing the outline of the spraying device used for the construction of the lightweight mortar of this application

11 A液を圧送する管
12 B液を圧送する管
13 A液を圧送する管とB液を圧送する管とが合流した管
14 吹付けノズル
21 A液収容器
22 B液収容器
23 A液とB液との混合物
31 A液圧送用のポンプ
32 B液圧送用のポンプ
33 コンプレッサー
34 空気管
50 壁面
11 Pipe for pumping A liquid 12 Pipe for pumping B liquid 13 Pipe for feeding A liquid and pipe for pumping B liquid 14 Spray nozzle 21 A liquid container 22 B liquid container 23 A liquid Mixture 31 and B liquid 31 A liquid pump 32 B liquid pump 33 Compressor 34 Air pipe 50 Wall surface

Claims (4)

セメント、水及び樹脂発泡体を含有するA液と、急結剤としてケイ酸塩を含有するB液とを施工直前に混合する比重0.1〜1.0の軽量モルタルの施工方法であって、A液を圧送する管とB液を圧送する管とを合流させてA液とB液とを混合し、A液とB液の圧送用ポンプの調節によりA液とB液の圧送される量を調整することにより、前記セメントと前記急結剤との混合割合がセメント100質量部に対して急結剤の固形分30〜80質量部となるようにA液とB液とを混合することを特徴とする軽量モルタルの施工方法。 A construction method for a lightweight mortar having a specific gravity of 0.1 to 1.0, in which a liquid A containing cement , water and a resin foam and a liquid B containing silicate as a quick setting agent are mixed immediately before construction. The pipe for feeding A liquid and the pipe for feeding B liquid are merged to mix A liquid and B liquid, and the A liquid and B liquid are pumped by adjusting the pump for pumping A liquid and B liquid. By adjusting the amount, the liquid A and the liquid B are mixed so that the mixing ratio of the cement and the quick setting agent is 30 to 80 parts by weight of the solid content of the quick setting agent with respect to 100 parts by weight of the cement. A lightweight mortar construction method characterized by this. 前記B液中に占める急結剤の固形分が20〜60質量%であることを特徴とする請求項1に記載の軽量モルタルの施工方法。   The solid content of the quick setting agent which occupies in said B liquid is 20-60 mass%, The construction method of the lightweight mortar of Claim 1 characterized by the above-mentioned. 前記A液は、前記セメント100質量部に対して前記水を50〜200質量部含有していることを特徴とする請求項1又は2に記載の軽量モルタルの施工方法。The said A liquid contains 50-200 mass parts of said water with respect to 100 mass parts of said cement, The construction method of the lightweight mortar of Claim 1 or 2 characterized by the above-mentioned. 請求項1〜のいずれかの施工方法によって施工された軽量モルタル。
The lightweight mortar constructed by the construction method according to any one of claims 1 to 3 .
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