【発明の詳細な説明】［産業上の利用分野］本発明は軽量硬化体の製造方法に係り、特に、建築物の
外壁、内壁、屋根等に用いるコンクリート系材料として
、予め工場生産される高強度、高耐久性の軽量硬化体の
製造方法に関するものである。Detailed Description of the Invention [Industrial Application Field] The present invention relates to a method for producing lightweight hardened materials, and in particular, concrete-based materials used for external walls, internal walls, roofs, etc. of buildings. The present invention relates to a method for manufacturing a lightweight cured product with high strength and high durability.
［従来の技術］建築物の外壁、内壁、屋根等を構成する材料としては、
コンクリート、木材、鉄、非鉄金属、セラミックス、プ
ラスチックなど多様な種類がある。また、建築物の各種
構造形式のうち、鉄骨造、ＲＣ造、ＳＲＣ造による大規
模建築物では、不燃且つ軽量な材料が要望され、コンク
リート系材料の使用実績も多い。[Conventional technology] Materials constituting the outer walls, inner walls, roofs, etc. of buildings include:
There are various types such as concrete, wood, iron, nonferrous metals, ceramics, and plastics. Furthermore, among the various structural types of buildings, large-scale buildings made of steel, RC, and SRC require noncombustible and lightweight materials, and concrete materials are often used.
コンクリート系の軽量硬化体としては、軽量骨材を使用
したコンクリートや、気泡を混入又はアルミニウム粉の
事後発泡により気泡を生成させ、場合によって高温高圧
蒸気養生を施した軽量気泡コンクリート（ＡＬＣ）があ
る。また、このように材料自体を軽（するのに対して、
押出し成形法により内部に空間を持たせることで、部材
の軽量化を図った商品等もある。Concrete-based lightweight hardened materials include concrete using lightweight aggregate, and lightweight aerated concrete (ALC), which is made by mixing air bubbles or generating air bubbles by post-foaming aluminum powder and, in some cases, undergoing high-temperature and high-pressure steam curing. . Also, while the material itself is lightened in this way,
There are also products that use extrusion molding to create internal space to reduce the weight of the parts.
［発明が解決しようとする課題］ＪＩＳ品で建設省の認定品乃至その同等品として認知さ
れている構造用人工軽量骨材を使用したコンクリートは
使用実績も多（、耐久性に優れた材料であるが、通常１
．７程度の比重しか得られず、単体では十分な軽量化を
図ることができない。[Problem to be solved by the invention] Concrete using structural artificial lightweight aggregate, which is a JIS product and is recognized as a Ministry of Construction certified product or its equivalent, has a long history of use (and is a highly durable material). Yes, but usually 1
．． A specific gravity of only about 7 can be obtained, and sufficient weight reduction cannot be achieved by using it alone.
絶乾比重が０．６〜１．０程度の特殊な骨材も試験的に
製造が検討されているが、骨材強度が低いため、このよ
うな骨材を用いた場合には軽量化は図れる反面、高強度
の硬化体は望めず、中性化等の耐久性にも問題がある。Trial production of special aggregates with an absolute dry specific gravity of about 0.6 to 1.0 is being considered, but due to the low aggregate strength, weight reduction is not possible when using such aggregates. However, a cured product with high strength cannot be expected, and there are also problems with durability such as neutralization.
高温高圧蒸気養生を施した軽量気泡コンクリートは、コ
ンクリート系としては非常に軽く、使用実績も多いが、
圧縮強度が４０〜６０ｋｇｆ／ｃｍ２と低く、仕上げ、
取付は方法などに制約を受けることが多い。また、空隙
量が４０％を超すため、透気性が大きくなり、また、硬
化体のｐＨが低いことから補強筋が錆易いという耐久性
上の欠点もある。このため、樹脂でコーティングした補
強筋を用いるなどの対策が実施されているが、現在のと
ころ、その耐久性の良否は不明である。Lightweight aerated concrete that has been cured with high-temperature and high-pressure steam is extremely light for a concrete type and has been used extensively.
Compressive strength is low at 40-60 kgf/cm2, finishing,
Installation methods are often subject to restrictions. In addition, since the void volume exceeds 40%, air permeability increases, and since the pH of the cured product is low, there is also a drawback in terms of durability that reinforcing bars are susceptible to rust. For this reason, countermeasures have been taken such as using reinforcing bars coated with resin, but the durability of these measures is currently unknown.
また、市場には、高温高圧蒸気養生を施さない気泡コン
クリートや気泡混入の石膏硬化体があるが、それぞれ中
性化し易い、耐水性状が劣る等の問題を有している。In addition, there are aerated concrete and aerated gypsum cured materials on the market that are not subjected to high-temperature and high-pressure steam curing, but each has problems such as easy neutralization and poor water resistance.
一方、中空押出し成形品は、上述の材料とは異なり、硬
化体そのものは緻密で耐久性がある。しかしながら、押
出し成形という製法を必須とすることから、大きさ、意
匠等の面で制約を受け、限定された状況でしか使用する
ことができないという不具合がある。上記従来の問題点
を解決し、不燃且つ高強度、高耐久性で、自由な造形が
可能な軽量硬化体を製造することができる軽量硬化体の
製造方法を提供することを目的とする。On the other hand, unlike the above-mentioned materials, the cured product itself of the hollow extrusion molded product is dense and durable. However, since it requires the manufacturing method of extrusion molding, it is subject to restrictions in terms of size, design, etc., and has the disadvantage that it can only be used in limited situations. It is an object of the present invention to provide a method for manufacturing a lightweight cured body that solves the above-mentioned conventional problems and can manufacture a lightweight cured body that is nonflammable, has high strength, high durability, and can be freely shaped.
［課題を解決するための手段］請求項（１）の軽量硬化体の製造方法は、セメント分に
、軽量増量材及び高性能減水剤を添加して混練し、混練
物を成形硬化、養生して軽量硬化体を製造する方法にお
いて、最大粒径が１ｍｍ以下でかさ比重が０．５以下の
微粒軽量増量材を混練物の２０〜６０体積％、高性能減
水剤をセメント分の２〜１５重量％添加し、混練物の水
・セメント分比を３５％以下とすることを特徴とする請
求項（２）の軽量硬化体の製造方法は、請求項（１）の
方法において、セメント分が、セメント４０重量％以上
と鉱物質微粉末６０重量％以下とからなることを特徴と
する請求項（３）の軽量硬化体の製造方法は、請求項（１）
又は（２）の軽量硬化体の製造方法において、軽量骨材
を混練物の６０体積％以下添加することを特徴とする請求項（４）の軽量硬化体の製造方法は、請求項（１）
ないしく３）のいずれかにおいて、補強繊維を混練物の
５体積％以下添加することを特徴とする請求項（５）の軽量硬化体の製造方法は、請求項（１）
ないしく４）のいずれかにおいて、増粘材をセメント分
の１重量％以下添加することを特徴とする。[Means for Solving the Problem] The method for producing a lightweight hardened product according to claim (1) includes adding a lightweight filler and a high-performance water reducer to a cement component, kneading the mixture, molding and hardening the kneaded product, and curing the mixture. In the method for producing a lightweight hardened body, fine particulate lightweight fillers with a maximum particle diameter of 1 mm or less and a bulk specific gravity of 0.5 or less are mixed in 20 to 60% by volume of the kneaded mixture, and a high performance water reducing agent is added as 2 to 15% by weight of the cement. %, and the water/cement ratio of the kneaded product is 35% or less. The method for producing a lightweight hardened body according to claim (3), characterized in that it consists of 40% by weight or more of cement and 60% by weight or less of fine mineral powder, is the method according to claim (1).
Alternatively, in the method for producing a lightweight cured product according to claim (2), the method for producing a lightweight cured product according to claim (4), characterized in that 60% by volume or less of lightweight aggregate is added to the kneaded material, is the method according to claim (1).
The method for producing a lightweight cured product according to claim (5), wherein reinforcing fibers are added to the kneaded material in an amount of 5% by volume or less in any one of claims (1) to 3).
In any one of 4) to 4), the thickener is added in an amount of 1% by weight or less based on the cement content.
即ち、前述の如く、軽量化の手法としては、材料を軽く
する方法や気泡を混入乃至生成させる方法がある。また
、これと異なる発想で、高強度化を図り部材断面を小さ
くする方法もある。一般に使用される軽量骨材を用いた
コンクリートでは余り軽量化が期待できず、気泡を利用
する場合では低強度で耐久性上の問題もある。一方、高
強度コンクリートによる部材断面減少による軽量化では
、躯体として要求される耐火性、遮音性、断熱性、雨仕
舞などの点から薄肉化にも限界がある。That is, as mentioned above, methods for reducing weight include a method of making the material lighter and a method of incorporating or generating air bubbles. In addition, there is a method using a different idea to increase the strength and reduce the cross section of the member. Concrete using commonly used lightweight aggregates cannot be expected to reduce weight much, and when using air bubbles, it has low strength and durability problems. On the other hand, when it comes to reducing weight by reducing the cross section of parts using high-strength concrete, there are limits to how thin the walls can be made due to fire resistance, sound insulation, heat insulation, rain protection, etc. required for the building frame.
そこで、本発明者らは、これらの問題点を解決するべく
検討を重ねた結果、従来使用方法が難しいため使用でき
る単位量が少なかった微粒軽量増量材を大量使用し、且
つ高性能減水剤の使用及び水セメント分比の低減により
、同材料の吸水性が大きいという欠点をペースト分のレ
オロジー的性状から解決することにより、不燃且つ高強
度、高耐久性で、自由な造形が可能な軽量硬化体を製造
することができることを見出し、本発明を完成した。Therefore, as a result of repeated studies to solve these problems, the inventors of the present invention have decided to use a large amount of fine-grained lightweight filler, which was difficult to use in the past and could only be used in small quantities, and to use a high-performance water reducing agent. By reducing the water-cement ratio and solving the disadvantage of high water absorption of the same material from the rheological properties of the paste, we have created a lightweight, hardened product that is non-flammable, has high strength, high durability, and allows for free shaping. They discovered that it is possible to manufacture a body, and completed the present invention.
以下に本発明の詳細な説明する。The present invention will be explained in detail below.
本発明による硬化体は、セメントの水和による強度発現
を前提としている。セメント分として使用するセメント
としては、ＪＩＳに規定されているポルトランド系セメ
ントや各種混合セメントが使用可能であるが、必ずしも
それらに限定されるものではない。本発明においては、
セメント分比重を軽（する目的で、潜在水硬性を有する
スラグ粉やポゾラン反応が期待できるシリカヒユーム、
フライアッシュなどの鉱物質微粉末でセメントの０〜６
０重量％を置換することが可能である。この場合、鉱物
質微粉末の添加量が多過ぎると強度発現が悪くなり、比
強度が低下するため、望ましくは鉱物質微粉末のセメン
ト骨中の割合は３０重量％以下とするのが適当である。The hardened body according to the present invention is premised on developing strength through hydration of cement. As the cement used as the cement component, Portland cement specified by JIS and various mixed cements can be used, but the present invention is not necessarily limited thereto. In the present invention,
In order to reduce the specific gravity of cement, slag powder with latent hydraulic properties and silica hume, which can be expected to undergo a pozzolanic reaction, are used.
0 to 6 of cement with fine mineral powder such as fly ash
It is possible to substitute 0% by weight. In this case, if the amount of fine mineral powder added is too large, the strength development will be poor and the specific strength will decrease, so it is preferable that the proportion of fine mineral powder in the cement bone is 30% by weight or less. be.
微粒軽量増量材としては、最大粒径１ｍｍ以下でかさ比
重が０．５以下のものを用いる。微粒軽量増量材として
は、真珠岩、黒曜石、松脂石等の原石を焼成したパーラ
イト、火山噴出物等を原料とし各種処理をして製造され
るシリカ質バルーン、又は発泡スチロール等の有機質合
成発泡材の粒等を使用することができる。市場にあるこ
れらの商品の中には最大粒径が１〜５ｍｍ程度のものも
あるが、粒径が太き（なると硬化体中の欠陥として作用
し、強度、耐久性上好ましくない。また、若干ポゾラン
反応を期待できるものもあるが、殆ど強度には寄与しな
い。このような微粒軽量増量材の添加量は少な過ぎると
十分な軽量化が達成されないが、添加量を増加させると
軽量化を図れる反面、強度が大きく低下する。このため
、微粒軽量増量材の添加量は混練物の２０〜６０体積％
とする。As the fine particle lightweight filler, one with a maximum particle diameter of 1 mm or less and a bulk specific gravity of 0.5 or less is used. Fine-grained lightweight fillers include perlite made from calcined raw stones such as nacre, obsidian, and pinestone, siliceous balloons made from volcanic ejecta, etc., and processed through various treatments, and organic synthetic foam materials such as styrofoam. Granules etc. can be used. Some of these products on the market have a maximum particle size of about 1 to 5 mm, but if the particle size is too large, it will act as a defect in the cured product, which is not desirable in terms of strength and durability. Although some pozzolanic reactions can be expected, they hardly contribute to strength.If the amount of such fine-grained lightweight extenders added is too small, sufficient weight reduction will not be achieved, but if the amount added is increased, weight reduction will be achieved. On the other hand, the strength is greatly reduced.For this reason, the amount of fine-grained lightweight filler added is 20 to 60% by volume of the kneaded material.
shall be.
高性能減水剤は界面活性剤の一種で、ナフタレン系、メ
ラミン系等の種類があり、高強度コンクリート製品等で
の使用実績も多い。本発明においては、このような高性
能減水剤を、十分な減水性とチクソトロピー性を有する
高粘性ペーストを得るために、セメント分の２〜１５重
量％と大量に使用する。この使用割合が２重量％未満で
は、高性能減水剤使用による十分な減水効果が得られな
い。逆に１５重量％を超えると、粘性が高すぎ、混線、
成形等のハンドリング面で支障をきたす。High-performance water reducing agents are a type of surfactant, and there are naphthalene-based, melamine-based, and other types, and they are often used in high-strength concrete products. In the present invention, such a high performance water reducing agent is used in a large amount of 2 to 15% by weight of the cement content in order to obtain a highly viscous paste having sufficient water reducing properties and thixotropic properties. If the proportion used is less than 2% by weight, a sufficient water reduction effect cannot be obtained by using the high performance water reducing agent. On the other hand, if it exceeds 15% by weight, the viscosity is too high, causing crosstalk,
This causes problems in handling such as molding.
高性能減水剤の好ましい使用割合は、２〜８重量％であ
る。The preferred proportion of the superplasticizer used is 2 to 8% by weight.
また、本発明においては、混練物の水・セメント分比は
３５％以下とする。水・セメント分比が３５％を超える
と、得られる硬化体の強度や耐久性が不足する。通常、
成形作業性等を考慮した場合、水・セメント分比は２０
〜３５％とするのが好ましい。Further, in the present invention, the water/cement ratio of the kneaded product is 35% or less. If the water/cement ratio exceeds 35%, the resulting cured product will lack strength and durability. usually,
When considering molding workability, the water/cement ratio is 20.
It is preferable to set it to 35%.
なお、本発明においては、その他、軽量骨材、補強繊維
、増粘材等を軽量硬化体に要求される性能及び成形条件
等によって適宜使用することが可能である。In addition, in the present invention, other lightweight aggregates, reinforcing fibers, thickeners, etc. can be used as appropriate depending on the performance and molding conditions required for the lightweight cured product.
軽量骨材としては、１５ｍｍ程度以下の粒度を持つもの
であれば、天然、人工、副産のいずれでも良い。ただし
、本発明による軽量硬化体は、３００ ｋ ｇ ｆ ／
ｃ ｍ ２以上の圧縮強度を持つため、骨材強度か弱
過ぎるものは適当でない。軽量骨材の使用により、より
一層の軽量化が図れる場合もあるが、過度に使用量が多
いと硬化体の強度が損なわれるため、軽量骨材の配合割
合は混練物に対して６０体積％以下とするのが好ましい
。The lightweight aggregate may be natural, artificial, or by-product as long as it has a particle size of about 15 mm or less. However, the lightweight cured product according to the present invention has a weight of 300 kg f/
Because it has a compressive strength of cm2 or more, aggregates with too weak strength are not suitable. Although the use of lightweight aggregate can further reduce the weight, if the amount used is too large, the strength of the hardened product will be impaired, so the blending ratio of lightweight aggregate should be 60% by volume based on the kneaded material. The following is preferable.
補強繊維としては、スチール繊維、カーボン繊維、アラ
ミド繊維、ビニロン繊維、耐アルカリガラス繊維等を使
用することができる。補強繊維の使用により、硬化体の
曲げ強度を向上させることができるが、その使用割合が
過度に多いと成形性が損なわれるため１．補強繊維の配
合割合は混練物の５体積％以下とするのが好ましい。As reinforcing fibers, steel fibers, carbon fibers, aramid fibers, vinylon fibers, alkali-resistant glass fibers, etc. can be used. By using reinforcing fibers, the bending strength of the cured product can be improved, but if the proportion of reinforcing fibers used is too high, moldability will be impaired.1. The blending ratio of reinforcing fibers is preferably 5% by volume or less of the kneaded material.
増粘材としては、メチルセルロース、ポリビニルアルコ
ール、ヒドロキシエチルセルロース、ＳＢＲ等を使用す
ることができる。増粘材の使用により、成形性の向上が
図れるが、その使用割合が過度に多いと、成形に時間を
要するため、増粘材の配合割合はセメント分の１重量％
以下とするのが好ましい。As the thickener, methyl cellulose, polyvinyl alcohol, hydroxyethyl cellulose, SBR, etc. can be used. Formability can be improved by using a thickener, but if the proportion used is too high, it will take time to form, so the proportion of the thickener should be 1% by weight of the cement.
The following is preferable.
本発明の軽量硬化体の製造方法は、上記所定成分を配合
して得られた混練物を常法に従って、成形、硬化、養生
することにより容易に実施することができる。The method for producing a lightweight cured product of the present invention can be easily carried out by molding, curing, and curing a kneaded product obtained by blending the above-mentioned predetermined components in accordance with a conventional method.
［作用］本発明において、軽量、高強度に寄与しているものは、
主に、微粒軽量増量材と高性能減水剤である。[Function] In the present invention, what contributes to light weight and high strength are:
The main products are fine-grained lightweight fillers and high-performance water reducers.
微粒軽量増量材は吸水性に富んでいるため、混線の際水
量が大幅に増加する傾向にあるが、高性能減水剤を大量
に添加することで減水し、更に水・セメント分比を低く
して高粘性ペーストとすることによって、吸水速度を遅
らせ、成形までの可使時間を確保することができるよう
になる。即ち、高性能減水剤は、機構的な意味で分散剤
とも呼ばれるものであるが、その電気化学的作用により
、大幅な減水が可能であり、レオロジー的には添加量の
増大に従って、降伏値が下がり、粘性が増加するととも
に容易に分離し難くなる。セメント混練物に別種の界面
活性剤により空気を連行すると、気泡のボールベアリン
グ作用等で太き（減水することができるが、気泡を含む
混練物に高性能減水剤を添加しても、気泡が分離し、消
泡してしまうため、従来、気泡コンクリートではＡＥ剤
や起泡剤の他に更に高性能減水剤を加えることは普通行
なわない。本発明では気泡と高性能減水剤の併用を避け
、高性能減水剤のみとし、大量添加によって良好な減水
効果と不分離性を得る。Fine grained lightweight fillers have high water absorption properties, so the amount of water tends to increase significantly when cross-conducting, but adding a large amount of high-performance water reducing agent reduces water and further lowers the water/cement ratio. By creating a highly viscous paste, it is possible to slow down the water absorption rate and secure a pot life until molding. In other words, high-performance water reducing agents are also called dispersants in a mechanical sense, but their electrochemical action makes it possible to significantly reduce water, and rheologically, the yield value increases as the amount added increases. As the viscosity increases, it becomes difficult to separate easily. When air is entrained in a cement mixture using a different type of surfactant, the air bubbles become thick (water can be reduced) due to the ball bearing action of the air bubbles, but even if a high-performance water reducing agent is added to a mixture containing air bubbles, the air bubbles will be reduced. Conventionally, in aerated concrete, it has not been usual to add a high performance water reducer in addition to an AE agent or a foaming agent because the foam will separate and disappear.In the present invention, the combination of air foam and a high performance water reducer is avoided. By using only a high-performance water reducing agent and adding a large amount, a good water reducing effect and non-separability can be obtained.
−８９に、コンクリート系材料の強度、耐久性が水セメ
ント比で左右されることは良く知られた知見であり、低
水・セメント分比とすることで高強度、高耐久性を得る
ことが可能となる。本発明においても、水・セメント分
比を３５％以下とすることによって高強度を確保し、体
積変化、中性化、透水性などの耐久性状を改善すること
が可能とされる。-89. It is a well-known knowledge that the strength and durability of concrete-based materials are affected by the water-cement ratio, and high strength and durability can be achieved by keeping the water-cement ratio low. It becomes possible. Also in the present invention, by setting the water/cement ratio to 35% or less, it is possible to ensure high strength and improve durability such as volume change, neutralization, and water permeability.
［実施例］以下に実施例及び比較例を挙げて本発明をより具体的に
説明するが、本発明はその要旨を超えない限り、以下の
実施例に限定されるものではない。[Examples] The present invention will be described in more detail with reference to Examples and Comparative Examples below, but the present invention is not limited to the following Examples unless it exceeds the gist thereof.
実施例１〜８．比較例１〜４第１表に示すように、セメント量、鉱物質微粉末量、微
粒軽量増量材量、軽量骨材量、高性能減水剤量を変化さ
せ、１０ｃｍφＸ２０ｃｍの供試体を成形した。これを
８０℃で５時間、蒸気養生した後、気中養生し、材令２
８日における比重及び圧縮強度の試験結果を第１表に示
した。Examples 1-8. Comparative Examples 1 to 4 As shown in Table 1, specimens of 10 cm φ x 20 cm were molded by varying the amount of cement, the amount of fine mineral powder, the amount of fine lightweight filler, the amount of lightweight aggregate, and the amount of high performance water reducing agent. This was steam-cured at 80°C for 5 hours, then air-cured to reach a material age of 2.
The test results for specific gravity and compressive strength on day 8 are shown in Table 1.
なお、使用材料の詳細は下記の通りである。The details of the materials used are as follows.
ｉ且■上セメント：早強ポルトランドセメント（三菱鉱業セメン
ト製）鉱物質微粉末：シリカフユーム（エルヶム製）微粒軽量
増量材ニジリカ質バルーンｃサンキライト）（最大粒径
０．３ｍｍ以下、かさ比重０、 ２６）軽量骨材：天然軽量細骨材（榛名産）高性能減水剤：ナフタレン系（マイティ１５０）第１表
より、次のことが明らかである。Top cement: Early-strength Portland cement (manufactured by Mitsubishi Mining Cement) Mineral fine powder: Silica fuyum (manufactured by Elcam) fine grained lightweight filler iridescent balloon C Sankyrite) (maximum particle size 0.3 mm or less, bulk specific gravity 0, 26) Lightweight aggregate: Natural lightweight fine aggregate (produced in Haruna) High performance water reducer: Naphthalene type (Mighty 150) From Table 1, the following is clear.
即ち、微粒軽量増量材を用いていない比較例１又は比較
例２に比べて、本発明によるものは、比重を０．２程度
軽減することが可能で、圧縮強度も向上する。また、水
・セメント分比を４０％以上とした比較例３又は比較例
４に比べて、本発明によるものは、比重はやや大きいも
のの、圧縮強度が飛躍的に向上した。That is, compared to Comparative Example 1 or Comparative Example 2 in which no particulate lightweight filler is used, the product according to the present invention can reduce the specific gravity by about 0.2 and improve the compressive strength. Moreover, compared to Comparative Example 3 or Comparative Example 4 in which the water/cement ratio was 40% or more, the compressive strength of the inventive product was dramatically improved, although the specific gravity was slightly larger.
実施例１〜８における配合は、いずれも水・セメント分
比３５％以下となっており、中性化をおこす限界といわ
れる４０％を大幅に下回っていることから、高耐久性を
有すると考えられる。また、比較例４では供試体にひび
われが観察されたが、実施例１〜８のものは健全であっ
た。このことから、本発明によるものは、水密性も良好
であり、乾湿繰返しによる劣化も生じ難いと考えられる
。The formulations in Examples 1 to 8 all have a water/cement ratio of 35% or less, which is significantly lower than 40%, which is said to be the limit for carbonation, so it is considered to have high durability. It will be done. Moreover, cracks were observed in the specimen in Comparative Example 4, but those in Examples 1 to 8 were sound. From this, it is considered that the material according to the present invention has good watertightness and is unlikely to deteriorate due to repeated drying and wetting.
［発明の効果］以上詳述した通り、本発明の軽量硬化体の製造方法によ
れば、従来、軽量であるが故に低強度であったり、耐久
性が劣るという軽量硬化体の欠点を解消し、通常のコン
クリートと同等以上の耐久性を有し、しかも、自由な形
状の部材を製作することができる軽量硬化体が提供され
る。また、本発明の方法では、製造にあたり、特別な装
置類や市販されていない材料を使用する必要がなく、し
かも、得られる硬化体は高強度であるため、種々の仕上
げ、取付は方法が可能となり、製造コスト及び施工コス
トの低廉化、作業性の改善が図れる。[Effects of the Invention] As detailed above, the method for producing a lightweight cured product of the present invention eliminates the drawbacks of conventional lightweight cured products such as low strength and poor durability due to their light weight. Provided is a lightweight hardened body that has durability equal to or higher than that of ordinary concrete and can be used to produce members of any shape. In addition, the method of the present invention does not require the use of special equipment or materials that are not commercially available, and the resulting cured product has high strength, allowing for various finishing and mounting methods. As a result, manufacturing costs and construction costs can be reduced, and workability can be improved.
代理人 弁理士 重 野 剛Agent: Patent attorney Tsuyoshi Shigeno
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32208390AJPH04193783A (en) | 1990-11-26 | 1990-11-26 | Production of lightweight hardened body |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32208390AJPH04193783A (en) | 1990-11-26 | 1990-11-26 | Production of lightweight hardened body |
| Publication Number | Publication Date |
|---|---|
| JPH04193783Atrue JPH04193783A (en) | 1992-07-13 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32208390APendingJPH04193783A (en) | 1990-11-26 | 1990-11-26 | Production of lightweight hardened body |
| Country | Link |
|---|---|
| JP (1) | JPH04193783A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0624868A (en)* | 1991-04-09 | 1994-02-01 | Nippon Cement Co Ltd | Production of lightweight concrete |
| JP2009155191A (en)* | 2007-12-28 | 2009-07-16 | Taiheiyo Materials Corp | Lightweight premixed mortar |
| CN106064917A (en)* | 2016-05-30 | 2016-11-02 | 四川鸥克建设工程有限公司 | Bonding mortar for bonding Light trabs Yu warming plate |
| CN106082836A (en)* | 2016-05-30 | 2016-11-09 | 四川鸥克建设工程有限公司 | The anticracking grout installed for Light trabs, squeegee |
| CN107311542A (en)* | 2017-07-10 | 2017-11-03 | 东南大学 | It is a kind of for the high ductility cement-base composite material on gradient road surface and preparation method thereof |
| CN110482914A (en)* | 2019-08-23 | 2019-11-22 | 苏州市兴邦化学建材有限公司 | A kind of ultra-high performance concrete manhole cover |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0624868A (en)* | 1991-04-09 | 1994-02-01 | Nippon Cement Co Ltd | Production of lightweight concrete |
| JP2009155191A (en)* | 2007-12-28 | 2009-07-16 | Taiheiyo Materials Corp | Lightweight premixed mortar |
| CN106064917A (en)* | 2016-05-30 | 2016-11-02 | 四川鸥克建设工程有限公司 | Bonding mortar for bonding Light trabs Yu warming plate |
| CN106082836A (en)* | 2016-05-30 | 2016-11-09 | 四川鸥克建设工程有限公司 | The anticracking grout installed for Light trabs, squeegee |
| CN107311542A (en)* | 2017-07-10 | 2017-11-03 | 东南大学 | It is a kind of for the high ductility cement-base composite material on gradient road surface and preparation method thereof |
| CN110482914A (en)* | 2019-08-23 | 2019-11-22 | 苏州市兴邦化学建材有限公司 | A kind of ultra-high performance concrete manhole cover |
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