JPH11322384A - Auxiliary material mixture, and production of product mixture by using the auxiliary material mixture - Google Patents
Auxiliary material mixture, and production of product mixture by using the auxiliary material mixtureInfo
- Publication number
- JPH11322384A JPH11322384A JP19968098A JP19968098A JPH11322384A JP H11322384 A JPH11322384 A JP H11322384A JP 19968098 A JP19968098 A JP 19968098A JP 19968098 A JP19968098 A JP 19968098A JP H11322384 A JPH11322384 A JP H11322384A
- Authority
- JP
- Japan
- Prior art keywords
- ultrafine powder
- auxiliary material
- inorganic
- mixture
- mixing
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0042—Powdery mixtures
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、建築土木資材を製
造するにあたり、主材料に添加・混合する補助材料、例
えば混和材、充填材等の補助材料における特定のもの同
士を予め混合した補助材料混合物、及び該補助材料混合
物を用いた製品混合物（製品混練物も含む。）の製造方
法に関し、特に補助材料として用いる超微粉の取扱い
性、及び補助材料の一つとして用いる超微粉の主材料へ
の混合性を向上させた、補助材料混合物及び該補助材料
混合物を用いた製品混合物の製造方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auxiliary material added to or mixed with a main material in the production of building civil engineering materials, for example, an auxiliary material obtained by previously mixing specific auxiliary materials such as admixtures and fillers. The present invention relates to a method for producing a mixture and a product mixture (including a kneaded product) using the auxiliary material mixture, and particularly to the handleability of the ultrafine powder used as an auxiliary material and the main material of the ultrafine powder used as one of the auxiliary materials. And a method for producing a product mixture using the auxiliary material mixture.
【０００２】[0002]
【従来の技術及びその課題】従来より、建築土木資材の
製造にあたっては、主材料に製品の高強度化、軽量化或
いは着色等を目的として、超微粉、無機発泡粒或いは顔
料等の嵩高い補助材料を添加・混合することが多く行わ
れている。2. Description of the Related Art Conventionally, in the production of architectural civil engineering materials, bulky auxiliary materials such as ultrafine powder, inorganic foamed particles or pigments have been used as main materials for the purpose of increasing the strength, reducing the weight or coloring of the products. Materials are often added and mixed.
【０００３】例えば、シリカシュームは、主材料である
セメント、水及び骨材に添加・混合すると、製品混合物
であるコンクリート硬化体の緻密性が高まり、強度や耐
久性の優れたコンクリート製品を得ることができること
から、セメント混和材、即ち主材料であるセメント、水
及び骨材に添加・混合する補助材料の一つとして広く使
用されている。[0003] For example, when silica shume is added to and mixed with cement, water and aggregate as main materials, the denseness of a concrete hardened body as a product mixture is increased, and a concrete product having excellent strength and durability can be obtained. Because of its ability to be used, it is widely used as a cement admixture, that is, as one of auxiliary materials to be added to and mixed with cement, water, and aggregate as main materials.
【０００４】ここで、上記補助材料は、主材料中に出来
るだけ均一に混合されることが、その添加・混合の目的
を達成するために非常に重要となるが、例えば上記した
シリカシュームのような超微粉の補助材料にあっては、
嵩高く、しかも凝集し易い性質などから、該超微粉をセ
メント等の主材料と他の補助材料と共に同時に混合或い
は混練した場合には、その混合性が一般的に悪いと言う
課題を有していた。Here, it is very important that the auxiliary material is mixed as uniformly as possible into the main material in order to achieve the purpose of addition and mixing. As for the auxiliary material of ultra fine powder,
Due to its bulky and easy-to-aggregate properties, when the ultrafine powder is simultaneously mixed or kneaded with a main material such as cement and other auxiliary materials, there is a problem that the mixing properties are generally poor. Was.
【０００５】また、超微粉の補助材料は、乾燥状態では
静電的に、また少量の湿気によって湿潤的に凝集するも
のが多いため、その輸送に際してトラブルが発生し易
く、超微粉自体の取扱い性にも課題があり、また粉塵発
生による作業環境の悪化と言う課題も有していた。[0005] Further, since many auxiliary materials of the ultrafine powder are aggregated electrostatically in a dry state and wetly by a small amount of moisture, troubles are liable to occur during transportation, and handling of the ultrafine powder itself is difficult. There is also a problem that the working environment is deteriorated due to the generation of dust.
【０００６】そこで、近年においては、補助材料として
用いる超微粉の取扱い性、及び主材料への混合性を改善
するための提案が種々なされている。例えば、セメント
混和材であるシリカヒュームに対しては、スラリー化
（特開昭60-129132 、特開平2-145417、特開平8-333144
等）、また主材料であるセメント或いは細骨材（更には
粗骨材）へのプレ混合（特開平6-114825等）、更には比
重の重い粉体とのプレ混合（特開平9-220715）等が検討
されている。Therefore, in recent years, various proposals have been made to improve the handleability of the ultrafine powder used as the auxiliary material and the mixing property with the main material. For example, silica fume, which is a cement admixture, is slurried (JP-A-60-129132, JP-A-2-154417, JP-A-8-333144).
Etc.), pre-mixing with cement or fine aggregate (moreover, coarse aggregate) as a main material (JP-A-6-148825, etc.), and pre-mixing with powder having a high specific gravity (JP-A-9-220715) ) Etc. are being studied.
【０００７】しかし、先ず特開昭60-129132 、特開平2-
145417及び特開平8-333144等に記載された超微粉をスラ
リー化して用いる方法では、超微粉が均一に分散したス
ラリーを得るために、別途、分散剤が必須となり、また
スラリー化するための専用の設備も必要となることか
ら、費用が高騰すると言う課題を有していた。また、超
微粉をスラリー化した状態で長期間保存すると、超微粉
がスラリー中において沈降する憂いがあり、スラリー濃
度が不均一と成ることから、主材料への添加・混合前に
再度スラリーを均一濃度になるよう攪拌する必要性があ
ると言う課題も有していた。However, first, Japanese Patent Application Laid-Open Nos.
145417 and the method of using the ultrafine powder in a slurry described in JP-A-8-333144, etc., in order to obtain a slurry in which the ultrafine powder is uniformly dispersed, a separate dispersant is indispensable, and a dedicated slurry is used. Because of the need for such equipment, there was a problem that costs would rise. Also, if the ultrafine powder is stored in a slurry state for a long period of time, there is a concern that the ultrafine powder will settle in the slurry, and the concentration of the slurry will be non-uniform. There was also a problem that it was necessary to stir to obtain a concentration.
【０００８】また、特開平6-114825等に記載された超微
粉を主材料であるセメント或いは細骨材（更には粗骨
材）にプレ混合した後、該プレ混合物を骨材と水或いは
セメントと水と混合する方法においては、補助材料とし
て使用する少量の超微粉を多量に使用するセメント或い
は細骨材等とプレ混合するものであるため、そのプレ混
合のための設備及び作業は大掛かりなものとなり、やは
り費用が高騰すると言う課題を有していたと共に、プレ
混合する主材料の粒径或いは湿分によっては必ずしも効
果が得られない場合も存在した。[0008] Further, after ultra-fine powder described in JP-A-6-148825 and the like is premixed with cement or fine aggregate (further, coarse aggregate) as a main material, the premix is mixed with water or cement. In the method of mixing with water and water, since a small amount of ultrafine powder used as an auxiliary material is premixed with cement or fine aggregate used in large amounts, equipment and work for the premixing are not large. In addition, there is a problem that the cost rises, and there is a case where the effect cannot always be obtained depending on the particle size or moisture of the pre-mixed main material.
【０００９】更に、特開平9-220715に記載された超微粉
より比重の重い粉体と超微粉とをプレ混合する技術にお
いては、超微粉より比重の重い粉体として本願明細書の
実施例に記載されているように主材料であるポルトラン
ドセメント等とすると、その工業的実施においては上記
と同様に費用が高騰すると言う課題が生じる憂いがあ
り、また、補助材料として使用する比較的量の少ない粉
体との混合においては、超微粉との比重差によりその混
合が困難であると言う課題を有していた。Further, in the technique of premixing a powder having a specific gravity higher than that of the ultrafine powder and an ultrafine powder described in Japanese Patent Application Laid-Open No. 9-220715, a powder having a specific gravity higher than that of the ultrafine powder is used in Examples of the present specification. If Portland cement or the like is used as the main material as described, there is a concern that the problem of cost increase will occur in the industrial implementation as above, and a relatively small amount of auxiliary material will be used. In mixing with a powder, there is a problem that the mixing is difficult due to a difference in specific gravity with the ultrafine powder.
【００１０】本発明は、上述した補助材料として用いる
超微粉の取扱いに関する従来技術が有する課題に鑑み成
されたものであって、その目的は、補助材料として用い
る超微粉の取扱い性、及び補助材料の一つとして用いる
超微粉の主材料への混合性を向上させた、新たな超微粉
の取扱い技術を提供することにある。The present invention has been made in view of the above-mentioned problems of the prior art regarding handling of ultrafine powder used as an auxiliary material, and has as its object to handle ultrafine powder used as an auxiliary material, and to provide an auxiliary material. Another object of the present invention is to provide a new ultrafine powder handling technology in which the mixing property of the ultrafine powder used for the main material is improved.
【００１１】[0011]
【課題を解決するための手段】本発明者らは、上記した
目的を達成すべく検討を重ねた結果、超微粉と無機発泡
粒とを併用して用いる製品混合物において、超微粉と共
に主材料への混合性が一般的に悪い無機発泡粒の存在に
着目し、該無機発泡粒と超微粉とを予め混合した混合物
を、製品混合物を得るための中間材料として用いること
とすると、超微粉の取扱い性、及び超微粉の主材料への
混合性のみならず、超微粉とプレ混合した無機発泡粒自
体の主材料への混合性も向上させることが出来ることを
見いだし、本発明を完成させた。Means for Solving the Problems As a result of repeated studies to achieve the above object, the present inventors have found that, in a product mixture using both ultrafine powder and inorganic expanded granules, the product mixture is used together with the ultrafine powder as the main material. Focusing on the presence of inorganic foam particles, which generally have poor mixing properties, the use of a pre-mixed mixture of the inorganic foam particles and ultrafine powder as an intermediate material for obtaining a product mixture, It has been found that not only the properties and the mixing properties of the ultrafine powder into the main material, but also the mixing properties of the inorganic foamed particles themselves pre-mixed with the ultrafine powder into the main material can be improved, and the present invention has been completed.
【００１２】即ち、本発明は、主材料に添加・混合する
補助材料として使用する超微粉と、同じく補助材料とし
て使用する無機発泡粒とを混合して成る補助材料混合物
とした。また、本発明は、補助材料として使用する超微
粉と、同じく補助材料として使用する無機発泡粒とを先
ず混合し、その後、得られた補助材料混合物を主材料と
混合或いは混練する製品混合物の製造方法とした。That is, the present invention provides an auxiliary material mixture obtained by mixing an ultrafine powder used as an auxiliary material to be added to and mixed with a main material and inorganic expanded particles also used as an auxiliary material. The present invention also provides a method for producing a product mixture in which ultrafine powder used as an auxiliary material and inorganic expanded particles also used as an auxiliary material are first mixed, and then the obtained auxiliary material mixture is mixed or kneaded with the main material. Method.
【００１３】上記した本発明にかかる補助材料混合物に
よれば、嵩高く、発塵し易い超微粉を無機発泡粒と混合
したものであるため、超微粉の少なくとも一部が、無機
発泡粒の多くにおいてその表面に存在する多数の微細な
気孔等の凹部を介して簡易な混合操作により付着し、無
機発泡粒と一体となる（無機発泡粒が超微粉で被覆され
た状態となる）ために、超微粉を単独で扱う場合に比較
してその輸送及び取扱いが容易なものとなる。また、超
微粉を、本発明にかかる補助材料混合物にした状態で主
材料に添加・混合すると、それ単独では主材料との混合
性が悪い超微粉が、同じく補助材料として使用する無機
発泡粒を輸送体（キャリヤ）として主材料中に容易に分
散するため、超微粉の主材料への混合性を向上させるこ
とができると共に、嵩高い無機発泡粒自体も、多くにお
いてその表面に存在する多数の微細な気孔等の凹部を介
して付着した超微粉によってそのかさ比重が増し、超微
粉と共に主材料への混合性を向上させることができる。According to the auxiliary material mixture according to the present invention, since the ultrafine powder which is bulky and easy to generate dust is mixed with the inorganic foamed particles, at least a part of the ultrafine powder contains most of the inorganic foamed particles. In order to adhere by a simple mixing operation through a large number of fine pores and other concave portions present on the surface thereof and become integral with the inorganic foamed particles (the inorganic foamed particles are coated with ultrafine powder), Transporting and handling the ultrafine powder is easier than when handling the ultrafine powder alone. In addition, when the ultrafine powder is added to and mixed with the main material in the state of the auxiliary material mixture according to the present invention, the ultrafine powder that is poor in mixing with the main material by itself may cause the inorganic expanded granules to be used as the auxiliary material as well. Since it is easily dispersed in the main material as a transporter (carrier), the mixing property of the ultrafine powder into the main material can be improved, and the bulky inorganic foamed particles themselves often have a large number of particles present on the surface. The bulk specific gravity increases due to the ultrafine powder adhered through the concave portions such as fine pores, and the mixing property with the main material together with the ultrafine powder can be improved.
【００１４】また、上記した本発明にかかる製品混合物
の製造方法によれば、主材料への混合前に、それ単独で
は共に主材料との混合性が悪い超微粉と無機発泡粒とを
予め混合することとしたため、超微粉の少なくとも一部
が無機発泡粒の表面に付着し、無機発泡粒と一体となる
（無機発泡粒を超微粉で被覆した状態となる）ために無
機発泡粒が主材料への混合時に超微粉の輸送体（キャリ
ヤ）としての作用を果たすと共に、無機発泡粒自体も、
多くにおいてその表面に存在する多数の微細な気孔等の
凹部を介して付着した超微粉によってそのかさ比重が増
し、主材料中に分散し易いものとなるために、超微粉及
び無機発泡粒を各々単独で主材料に混合した場合に比較
して、両者ともその主材料への均一混合が進み、得られ
る製品混合物の品質、例えば強度、重量、着色等を均一
なものとすることができる。Further, according to the above-mentioned method for producing a product mixture according to the present invention, before mixing with the main material, the ultrafine powder and the inorganic foamed particles, which are poor in mixing with the main material, are mixed beforehand. Since at least a part of the ultrafine powder adheres to the surface of the inorganic foamed particles and becomes integral with the inorganic foamed particles (the state in which the inorganic foamed particles are covered with the ultrafine powder), the inorganic foamed particles are the main material. In addition to acting as a transporter (carrier) of the ultrafine powder at the time of mixing into
In many cases, the bulk specific gravity increases due to the ultrafine powder attached through a large number of fine pores and other concave portions present on the surface thereof, and it becomes easy to disperse in the main material. Compared to the case where the main material is mixed alone, the two are more uniformly mixed with the main material, and the quality of the obtained product mixture, for example, strength, weight, coloring, and the like can be made uniform.
【００１５】ここで、上記本発明において、超微粉と予
め混合する無機発泡粒は、平均粒径５μｍ〜３ｍｍの無
機発泡粒とすることが好ましい。これは、平均粒径が５
μｍに満たない無機発泡粒では、超微粉に粒径が近づき
過ぎて超微粉をその表面に付着させることはできず、超
微粉の取扱い性、及び超微粉の主材料への混合性を向上
させることが困難となるためであり、また、逆に平均粒
径が３ｍｍを越える無機発泡粒では、その表面に存在す
る凹凸が大き過ぎて輸送中に超微粉が分離したり、或い
は粒子間の間隙が広いために多くの超微粉がこの間隙に
充填してしまい、やはり超微粉の取扱い性、及び超微粉
の主材料への混合性を向上させることが困難となるため
である。Here, in the present invention, the inorganic foamed particles which are preliminarily mixed with the ultrafine powder are preferably inorganic foamed particles having an average particle size of 5 μm to 3 mm. This means that the average particle size is 5
With inorganic foamed particles less than μm, the particle size is too close to the ultrafine powder and the ultrafine powder cannot be attached to the surface, improving the handling properties of the ultrafine powder and the mixing property of the ultrafine powder with the main material. On the other hand, in the case of inorganic expanded particles having an average particle diameter of more than 3 mm, the irregularities existing on the surface are too large, so that ultrafine powder is separated during transportation, or gaps between particles are generated. This is because a large amount of ultrafine powder fills the gap due to the large size, and it is also difficult to improve the handleability of the ultrafine powder and the mixing property of the ultrafine powder with the main material.
【００１６】また、超微粉と予め混合する上記無機発泡
粒として、そのかさ比重が超微粉と同程度、若しくはそ
れ以下のかさ比重の無機発泡粒とした場合には、上記し
た本発明の作用・効果が増すために好ましい。即ち、混
合する両者のかさ比重が同程度のものであれば、その混
合が容易なものとなり、また、超微粉のかさ比重よりも
軽いかさ比重の無機発泡粒と超微粉とを混合することと
すると、超微粉が無機発泡粒の表面に付着した状態とし
て得られる本発明にかかる補助材料混合物は、そのかさ
比重が無機発泡粒単独の場合に比較して重いものとな
り、無機発泡粒自体の主材料への混合性を飛躍的に向上
させることができるため、無機発泡粒の主材料への混合
性も向上させると言う本発明の作用・効果が顕著に現れ
るために好ましい。When the inorganic foamed particles to be preliminarily mixed with the ultrafine powder are inorganic foamed particles having the same bulk specific gravity as that of the ultrafine powder or less than that of the ultrafine powder, the above-mentioned effects of the present invention can be obtained. It is preferable because the effect is increased. That is, if the bulk specific gravity of the two to be mixed is about the same, the mixing becomes easy, and it is also possible to mix the inorganic foamed particles and the ultrafine powder with a bulk specific gravity lighter than the bulk specific gravity of the ultrafine powder. Then, the auxiliary material mixture according to the present invention, which is obtained in a state where the ultrafine powder adheres to the surface of the inorganic expanded particles, has a bulk specific gravity which is heavier than that of the inorganic expanded particles alone, and the main density of the inorganic expanded particles itself is large. Since the mixing property to the material can be remarkably improved, the action and effect of the present invention of improving the mixing property of the inorganic expanded particles to the main material is remarkably exhibited, which is preferable.
【００１７】[0017]
【発明の実施の形態】以下、上記した本発明を、詳細に
説明する。DETAILED DESCRIPTION OF THE INVENTION Hereinafter, the present invention will be described in detail.
【００１８】本発明で言う補助材料とは、製品混合物の
主要な材料、即ち主材料に製品混合物の強度の向上、軽
量化或いは着色等を目的として、所定量（主材料に比較
して当然に少ない量）添加・混合される全ての材料を指
し、この補助材料と主材料との混合或いは混練によって
得られる本発明で言う製品混合物とは、モルタル製品、
コンクリート製品、建築用内外壁材及び屋根材、土壌改
良材等の建築土木資材、或いはその中間資材として使用
される超微粉と無機発泡粒とを含むプレミックスモルタ
ル、モルタル混練物、コンクリート混練物等を言う。The auxiliary material referred to in the present invention is a main material of a product mixture, that is, a predetermined amount (naturally compared to the main material) for the purpose of improving the strength, reducing the weight or coloring of the product mixture. Small amount) refers to all materials added and mixed, and the product mixture referred to in the present invention obtained by mixing or kneading the auxiliary material and the main material is a mortar product,
Premix mortar, mortar kneaded material, concrete kneaded material, etc. containing ultrafine powder and inorganic foamed granules used as building materials such as concrete products, building inner and outer wall materials and roofing materials, soil improvement materials, etc., or intermediate materials thereof Say
【００１９】本発明は、上記補助材料の内、同一の主材
料に併用して使用する超微粉と無機発泡粒とを混合して
成る補助材料混合物、或いは、上記補助材料の内、同一
の主材料に併用して使用する超微粉と無機発泡粒とを先
ず混合し、中間材料である補助材料混合物を得た後、こ
の補助材料混合物を主材料と混合或いは混練する上記製
品混合物の製造方法である。According to the present invention, there is provided an auxiliary material mixture formed by mixing ultrafine powder and inorganic expanded particles used together with the same main material among the above auxiliary materials, or the same main material among the above auxiliary materials. First, the ultrafine powder and the inorganic expanded granules used in combination with the material are mixed to obtain an auxiliary material mixture as an intermediate material, and then the auxiliary material mixture is mixed or kneaded with the main material. is there.
【００２０】上記補助材料として使用される超微粉とし
ては、混和材として使用されるシリカヒューム、ブレー
ン値が８０００cm2/g 以上のスラグ微粉末、発泡剤とし
て使用されるアルミニウム粉末等の金属微粉末、着色剤
等として使用されるカーボンブラック、酸化第二鉄等の
無機微粉末、更には平均粒径１μｍ以下の各種の乾燥粘
土粉、樹脂微粉末、セラミックス微粉末、焼却灰やスス
或いはＥＰ灰等のダスト類が挙げられる。但し、これら
の中でも、嵩高く、凝集し易い性質を有するシリカヒュ
ーム（一般的にかさ比重は０．２〜０．４ｇ／ｌ）に対
しては、特に本発明は効果的である。Examples of the ultrafine powder used as the auxiliary material include silica fume used as an admixture, slag fine powder having a Blaine value of 8000 cm 2 / g or more, and metal fine powder such as aluminum powder used as a foaming agent. And inorganic fine powders such as carbon black and ferric oxide used as coloring agents, and various dry clay powders having an average particle diameter of 1 μm or less, resin fine powders, ceramic fine powders, incinerated ash, soot or EP ash. And the like. However, among these, the present invention is particularly effective with respect to silica fume (which generally has a bulk specific gravity of 0.2 to 0.4 g / l) which is bulky and easily aggregated.
【００２１】また、上記補助材料として使用される無機
発泡粒としては、製品混合物の軽量化を図る目的等で主
材料に添加・混合されるパーライト、発泡ガラスビー
ズ、シラスバルーン、抗火石粉等の天然発泡ガラスの粉
砕物、フライアッシュバルーン、人工軽量骨材等を挙げ
ることができる。但し、上記した中でも、パーライトの
ように脆弱な無機発泡粒が、主材料との混合時に潰れ、
表面に付着した超微粉を主材料中に撒き散らすために好
ましい。また、パーライトは、超軽量で嵩高い無機発泡
粒（一般的にかさ比重は０．０５〜０．７ｇ／ｌ）であ
るために、シリカヒュームのような超微粉と同様にその
取扱い性及び主材料との混合性に課題を有していたが、
超微粉と混合することにより、その相互作用によってパ
ーライト自体の取扱い性及び主材料との混合性も改善さ
れるために、特に本発明は効果的である。The inorganic expanded particles used as the auxiliary material include pearlite, expanded glass beads, shirasu balloon, and anti-firestone powder which are added to and mixed with the main material for the purpose of reducing the weight of the product mixture. Pulverized natural foam glass, fly ash balloon, artificial lightweight aggregate, and the like can be given. However, among the above, fragile inorganic foam particles such as pearlite are crushed when mixed with the main material,
It is preferable to disperse the ultrafine powder attached to the surface into the main material. Further, since pearlite is an ultra-light and bulky inorganic foamed particle (generally having a bulk specific gravity of 0.05 to 0.7 g / l), its handling and main properties are similar to ultrafine powder such as silica fume. Although there was a problem with the mixability with the material,
The present invention is particularly effective because the interaction with ultrafine powder improves the handling properties of pearlite itself and the mixing properties with the main material due to the interaction.
【００２２】上記超微粉と、上記無機発泡粒との混合
は、従来より粉粒体同士の混合に慣用されているエアー
混合機等を用いて行えば良く、例えば、パーライト製造
工場内において焼成発泡後のパーライトをサイロへ移送
する際、エアー混合機にて超微粉であるシリカヒューム
をパーライトの流れの中に投入すれば、シリカヒューム
とパーライトとの混合物、即ち本発明で言う補助材料混
合物が容易に得られる。The mixing of the ultrafine powder and the inorganic expanded particles may be performed by using an air mixer or the like which has been conventionally used for mixing particles and granules. When the subsequent pearlite is transferred to the silo, if a silica fume, which is an ultrafine powder, is introduced into the flow of the pearlite with an air mixer, a mixture of the silica fume and the pearlite, that is, the auxiliary material mixture referred to in the present invention, is easily formed. Is obtained.
【００２３】このようにして得られた本発明にかかる補
助材料混合物は、空気中の湿分と超微粉自体の凝集力、
更には、混合する上記のような無機発泡粒の多くにおい
てはその表面に多数の微細な気孔等の凹部が存在するこ
とから、超微粉の少なくとも一部が混合された無機発泡
粒の表面に付着し、無機発泡粒と超微粉とが一体となっ
た（無機発泡粒が超微粉で被覆された）状態の混合物と
なる。The auxiliary material mixture according to the present invention thus obtained is characterized by the moisture in the air and the cohesion of the ultrafine powder itself,
Furthermore, since many of the above-mentioned inorganic foam particles to be mixed have many concave portions such as fine pores on the surface, at least a part of the ultrafine powder adheres to the surface of the mixed inorganic foam particles. Then, a mixture in a state where the inorganic expanded particles and the ultrafine powder are integrated (the inorganic expanded particles are coated with the ultrafine powder) is obtained.
【００２４】そのため、該補助材料混合物の取扱いは、
超微粉が存在するにも係わらず、通常の無機発泡粒と同
様の輸送及び取扱いが可能となり、また、一旦その凝集
力等によって無機発泡粒の表面に付着した超微粉は、通
常の無機発泡粒の輸送及び取扱い条件では離脱し難いた
めに、その混合状態が大きく変わることもなく、超微粉
の取扱い性を良好なものとすることができる。また、該
補助材料混合物を主材料に添加・混合すると、超微粉が
無機発泡粒を輸送体（キャリヤ）として主材料中に容易
に分散するため、超微粉を単独で主材料に添加・混合し
た場合に比較して、超微粉の主材料への混合性を向上さ
せることができると共に、パーライトのような嵩高い無
機発泡粒においては、それ自体も表面に存在する多数の
微細な気孔等の凹部を介して付着した超微粉によってそ
のかさ比重が増し、主材料への混合性を向上させること
ができる。Therefore, the handling of the auxiliary material mixture is as follows:
Despite the presence of the ultrafine powder, the same transport and handling as ordinary inorganic foamed particles are possible, and the ultrafine powder once attached to the surface of the inorganic foamed particles due to its cohesive force, etc. It is difficult to separate under the transportation and handling conditions, and the mixing state does not change significantly, and the handling properties of the ultrafine powder can be improved. Also, when the auxiliary material mixture is added to and mixed with the main material, the ultrafine powder is easily dispersed in the main material as inorganic carrier particles (carriers). Compared with the case, it is possible to improve the mixing property of the ultrafine powder with the main material, and in the case of bulky inorganic foamed particles such as pearlite, there are many concave portions such as fine pores present on the surface itself. The bulk specific gravity increases due to the ultrafine powder adhered through the base material, and the mixing property with the main material can be improved.
【００２５】なお、上記超微粉と無機発泡粒との混合割
合は、特に限定されるものでは無く、用途或いは注文に
応じて配合すれば良いが、超微粉の殆どが無機発泡粒の
表面に付着している状態の混合物とすることが好ましい
ため、容積％で、超微粉１０〜４０％、無機発泡粒９０
〜６０％程度の混合割合で行うことが好ましい。また、
上記超微粉と無機発泡粒との混合は、例えばシリカヒュ
ームとパーライト、シリカヒュームとシラスバルーンの
ように各々１種類同士でも良いが、超微粉或いは無機発
泡粒が複数種ある場合、例えば超微粉であるシリカヒュ
ームと酸化第二鉄などの金属微粉末を補助材料として併
用する場合には、これらの超微粉の両者を、例えばパー
ライトのような無機発泡粒と混合した補助材料混合物と
しても良い。The mixing ratio of the ultrafine powder and the inorganic foam particles is not particularly limited, and may be blended according to the use or order. Most of the ultrafine powder adheres to the surface of the inorganic foam particles. It is preferable that the mixture is in a mixed state.
It is preferable to perform the mixing at a mixing ratio of about 60%. Also,
The mixture of the ultrafine powder and the inorganic expanded particles may be of one type each such as silica fume and pearlite, or silica fume and shirasu balloon, but when there are a plurality of types of ultrafine powder or inorganic expanded particles, for example, ultrafine powder. When a silica fume and a metal fine powder such as ferric oxide are used in combination as an auxiliary material, both of these ultrafine powders may be used as an auxiliary material mixture in which inorganic fine particles such as pearlite are mixed.
【００２６】上記本発明にかかる補助材料混合物と主材
料との混合或いは混練は、従来から製品混合物を得るた
めに使用していた慣用の混合機或いは混練機を用いて行
えば良い。例えば、製品混合物として軽量高強度モルタ
ルを製造する場合、本発明にかかる補助材料混合物とし
て、シリカヒュームとパーライトとの混合物（シリカヒ
ュームは高強度化のため、パーライトは軽量化のために
使用される共に補助材料）を用い、該シリカヒュームと
パーライトとの混合物を、主材料であるセメント、水及
び骨材、更には高性能減水剤等の他の補助材料と共に２
Ｌ攪拌機に投入し、混合・混練することにより製品混合
物を製造すれば良い。The mixing or kneading of the auxiliary material mixture and the main material according to the present invention may be performed using a conventional mixer or kneader conventionally used for obtaining a product mixture. For example, when producing a lightweight high-strength mortar as a product mixture, a mixture of silica fume and pearlite (silica fume is used for increasing strength, and pearlite is used for reducing weight) as an auxiliary material mixture according to the present invention. Both of which are auxiliary materials), and the mixture of silica fume and perlite is mixed with other auxiliary materials such as cement, water and aggregate, which are the main materials, and also a high-performance water reducing agent.
What is necessary is just to throw into an L stirrer, to mix and knead, and to produce a product mixture.
【００２７】この本発明にかかる補助材料混合物と主材
料との混合において、補助材料混合物中の超微粉は、該
超微粉が付着している無機発泡粒を輸送体（キャリヤ）
として主材料中に容易に分散する。これによって、他の
補助材料、例えばＡＥ剤、ＡＥ減水剤、減水剤等の効果
を減少させることなく、超微粉を添加・混合した効果を
均一に得られる。更に、超微粉を予め混合した無機発泡
粒がパーライトのような脆弱な補助材料である場合に
は、主材料との混合中においてパーライトが徐々に潰
れ、その表面に付着した超微粉が主材料中に撒き散らさ
れることとなるため、超微粉の主材料への均一混合がよ
り進み、得られる製品混合物の品質をより一層良好なも
のとすることができる。In the mixing of the auxiliary material mixture and the main material according to the present invention, the ultrafine powder in the auxiliary material mixture is obtained by transporting the inorganic expanded particles to which the ultrafine powder adheres to a transporter (carrier).
As easily dispersed in the main material. Thereby, the effect of adding and mixing the ultrafine powder can be obtained uniformly without reducing the effects of other auxiliary materials, for example, AE agent, AE water reducing agent, water reducing agent, and the like. Further, when the inorganic foamed particles premixed with ultrafine powder is a fragile auxiliary material such as pearlite, the pearlite is gradually crushed during mixing with the main material, and the ultrafine powder adhered to the surface thereof is contained in the main material. Therefore, the uniform mixing of the ultrafine powder into the main material further proceeds, and the quality of the obtained product mixture can be further improved.
【００２８】[0028]
【実施例】以下、上記した本発明にかかる補助材料混合
物、及び該補助材料混合物を用いた製品混合物の製造方
法の実施例を、比較例と共に記載する。EXAMPLES Examples of the auxiliary material mixture according to the present invention and a method for producing a product mixture using the auxiliary material mixture will be described below along with comparative examples.
【００２９】 −使用材料− 〔主材料〕 セメント：普通ポルトランドセメント〔日本セメント（株）製〕 水 ：水道水 骨 材：珪石粉末〔日本セメント（株）製、粉末度 3,500cm2/g 〕 〔補助材料〕 軽量骨材：パーライト〔アサノパーライト（株）製、平均粒径１００μｍ、 かさ比重０．１５ｇ／ｌ〕 混和材 ：シリカヒューム〔エファコ（株）製、平均粒径０．２μｍ、かさ 比重０．４ｇ／ｌ〕 補強繊維：パルプ〔三方商工（株）製、 L-BKPリーフリバー〕 ホ゜リフ゜ロヒ゜レンファイハ゛ 〔デザック（株）製、タフライトFF6 〕 増粘剤 ：メチルセルロース〔信越化学（株）製、MC-SNB-30T〕-Materials- [Main material] Cement: ordinary Portland cement (Nippon Cement Co., Ltd.) Water: tap water Aggregate: Silica powder (Nippon Cement Co., Ltd., fineness: 3,500 cm 2 / g) [ Auxiliary material] Light-weight aggregate: Perlite (manufactured by Asano Perlite Co., Ltd., average particle size 100 μm, bulk specific gravity 0.15 g / l) Admixture: silica fume (manufactured by Efaco, average particle size 0.2 μm, bulk specific gravity) 0.4 g / l] Reinforcing fiber: pulp [L-BKP Leaf River, manufactured by Mikata Shoko Co., Ltd.] Polyfluorophenol [Tafite FF6, manufactured by Dezac Co., Ltd.] Thickener: methylcellulose [manufactured by Shin-Etsu Chemical Co., Ltd., MC -SNB-30T)
【００３０】−補助材料混合物の製造− 〔実施例Ａ〕上記補助材料の内、超微粉であるシリカヒ
ュームと、無機発泡粒であるパーライトとを、容積％
で、シリカヒューム５０％、パーライト５０％の割合で
エアー混合機〔奥多摩工業（株）製〕を用いて混合し、
シリカヒュームとパーライトとの混合物Ａを製造した。-Production of Auxiliary Material Mixture- [Example A] Of the above-mentioned auxiliary materials, silica fume, which is an ultrafine powder, and pearlite, which is an inorganic expanded particle, were prepared by volume%.
Then, using an air mixer (manufactured by Okutama Industry Co., Ltd.) at a ratio of 50% of silica fume and 50% of pearlite,
A mixture A of silica fume and perlite was produced.
【００３１】〔実施例Ｂ〕上記と同様の方法によって、
シリカヒュームとパーライトとを、容積％で、シリカヒ
ューム１５％、パーライト８５％（重量％で、シリカヒ
ューム２５％、パーライト７５％）の割合で上記混合機
を用いて混合し、シリカヒュームとパーライトとの混合
物Ｂを製造した。Example B By the same method as described above,
Silica fume and perlite were mixed by volume using the above mixer at a ratio of 15% silica fume and 85% pearlite (25% silica fume and 75% pearlite by weight). Was prepared.
【００３２】−補助材料混合物における混合性及び取扱
い性の評価− 上記の方法により得られた混合性が評価し易い容積比
１：１のシリカヒュームとパーライトとの混合物Ａを、
ロータップ試験機にかけた後、ランダムにサンプルを採
取し、単位容積質量測定及び顕微鏡観察を行ったとこ
ろ、全てのサンプルにおいて、ほぼ同様の単位容積質量
が得られたと共に、いずれも一様にシリカヒュームの大
部分がパーライトの表面に付着したシリカヒュームとパ
ーライトとの混合物と成っていた。-Evaluation of Mixability and Handling Properties of Auxiliary Material Mixture- A mixture A of silica fume and pearlite having a volume ratio of 1: 1 which is easy to evaluate the mixability obtained by the above method,
After applying a low tap tester, random samples were taken, and the unit volume mass measurement and microscopic observation were performed.As a result, almost the same unit volume mass was obtained in all the samples, and the silica fumes were all uniform. Was composed of a mixture of silica fume and perlite adhered to the surface of perlite.
【００３３】また、上記の方法により得られたシリカヒ
ュームとパーライトとの混合物Ｂを、通常のパーライト
の輸送方法及び取扱い方法で扱ったところ、粉塵の発
生、またシリカヒュームのパーライト表面からの離脱は
殆ど見受けられなかった。When the mixture B of silica fume and pearlite obtained by the above-mentioned method was handled by a usual method for transporting and handling pearlite, dust generation and detachment of silica fume from the pearlite surface were observed. Almost never found.
【００３４】−製品混合物の製造− 〔実施例〕上記シリカヒュームとパーライトとの混合物
Ｂ（実施例Ｂの本発明にかかる補助材料混合物）を、主
材料である上記セメント、水及び骨材、更には他の補助
材料であるパルプ、ポリプロピレンファイバ、メチルセ
ルロースと共に２Ｌ攪拌機〔ホバート社製、ホバートミ
キサー〕に投入し、混合・混練することによりモルタル
混練物を製造した。なお、各材料の配合は、表１で行っ
た。[Production of Product Mixture] [Example] The mixture B of silica fume and pearlite (the mixture of auxiliary materials according to the present invention of Example B) is mixed with the above cement, water and aggregate as main materials, and further, Was put into a 2 L stirrer (Hobart mixer, Hobart mixer) together with pulp, polypropylene fiber and methyl cellulose as other auxiliary materials, and mixed and kneaded to produce a mortar kneaded product. In addition, the compounding of each material was performed in Table 1.
【００３５】〔比較例〕補助材料であるシリカヒューム
とパーライトとを予め混合することなく、従来と同様
に、全ての上記した補助材料と主材料とを共に上記した
混練機に同時投入して混練し、モルタル混練物を製造し
た。なお、各材料の配合は、表１の配合と同一になるよ
うに行った。COMPARATIVE EXAMPLE All of the above-mentioned auxiliary materials and the main material were simultaneously introduced into the above-mentioned kneading machine and kneaded together without mixing silica fume and pearlite as auxiliary materials in the same manner as before. Then, a mortar kneaded material was produced. In addition, the composition of each material was performed so that it might become the same as the composition of Table 1.
【００３６】[0036]
【表１】 [Table 1]
【００３７】−製品混合物における超微粉の分散性の評
価− 一般に超微粉はマトリックス中に均一に分散しているほ
ど、マイクロフィラー効果により流動性は良くなる。こ
の特性を利用して、製品混合物における超微粉の分散性
の評価を行った。即ち、混合時間を表２に示した種々の
時間で行って得られた実施例のモルタル混練物につい
て、その混合直後の流動性を各々測定した。なお、モル
タル混練物の流動性は、JIS R 5201「セメントの物理試
験」９．７に記載されたテーブルフロー値で評価した。
また、 比較例のモルタル混練物についても、上記と同
様に流動性を測定した。測定結果を、表２に実施例及び
比較例として記載する。-Evaluation of dispersibility of ultrafine powder in product mixture- Generally, the more uniformly the ultrafine powder is dispersed in the matrix, the better the fluidity due to the microfiller effect. Utilizing this property, the dispersibility of the ultrafine powder in the product mixture was evaluated. That is, the fluidity immediately after the mixing was measured for each of the mortar kneaded materials of the examples obtained by performing the mixing for various times shown in Table 2. In addition, the fluidity of the mortar kneaded material was evaluated by the table flow value described in 9.7 R5201 “Physical test of cement” 9.7.
The fluidity of the mortar kneaded material of the comparative example was measured in the same manner as described above. The measurement results are shown in Table 2 as Examples and Comparative Examples.
【００３８】[0038]
【表２】 [Table 2]
【００３９】また、超微粉であるシリカヒュームは、製
品混合物の硬化体であるコンクリートの緻密性を高め、
強度や耐久性を向上させる目的で主材料に添加・混合さ
れる補助材料である。そのため、主材料中にシリカヒュ
ームが均一に分散・混合している製品混合物の硬化体ほ
ど、その強度は向上したものとなる。そこで、注水後３
分間混合して得られた実施例のモルタル混練物を、４×
４×１６cmの鋼製型枠に詰め、蒸気養生（60℃×６
ｈ）、次いでオートクレーブ養生（175 ℃×５ｈ）を施
し、得られた硬化モルタル試験体についての曲げ強度、
及び圧縮強度を各々測定した。なお、硬化モルタル試験
体の曲げ強度、及び圧縮強度の測定は、JIS R 5201「セ
メントの物理試験」９．に記載された強さ試験に準じて
測定した。また、比較例のモルタル混練物（全ての材料
を同時混合して得られたモルタル混練物）についても、
上記と同様に硬化モルタル試験体を作製し、該硬化モル
タル試験体の曲げ強度、及び圧縮強度を各々測定した。
測定結果を、表３に実施例、及び比較例として記載す
る。Further, silica fume which is an ultrafine powder enhances the compactness of concrete which is a cured product of the product mixture,
Auxiliary material added to and mixed with the main material for the purpose of improving strength and durability. Therefore, the strength of a cured product of a product mixture in which silica fume is uniformly dispersed and mixed in the main material is improved. Therefore, after water injection 3
The mortar kneaded material of Example obtained by mixing for
Packed in a 4 × 16 cm steel formwork, steam cured (60 ° C × 6
h) and then subjected to autoclave curing (175 ° C. × 5 h), and the flexural strength of the obtained cured mortar specimen
And compressive strength were measured. The flexural strength and compressive strength of the cured mortar specimen were measured according to JIS R 5201 “Physical test of cement”. The strength was measured according to the strength test described in (1). Also, for the mortar kneaded material of the comparative example (mortar kneaded material obtained by simultaneously mixing all the materials),
A cured mortar specimen was prepared in the same manner as above, and the flexural strength and the compressive strength of the cured mortar specimen were measured.
The measurement results are shown in Table 3 as Examples and Comparative Examples.
【００４０】[0040]
【表３】 [Table 3]
【００４１】表２から、予め得たシリカヒュームとパー
ライトとの混合物を主材料へ添加・混合する方（実施例
に係る製品混合物）が、個々にシリカヒュームとパーラ
イトとを主材料へ添加・混合する（比較例に係る製品混
合物）よりも、短い混合時間で流動性の高いモルタル混
練物が得られることが分かる。また、表３から、予め得
たシリカヒュームとパーライトとの混合物を主材料へ添
加・混合して得られたモルタル混練物の硬化体の方（実
施例に係る製品混合物の硬化体）が、個々にシリカヒュ
ームとパーライトとを主材料へ添加・混合して得られた
モルタル混練物の硬化体（比較例に係る製品混合物の硬
化体）よりも、曲げ強度及び圧縮強度が共に高い硬化体
となることが分かる。これらのことから、シリカヒュー
ムとパーライトとを予め混合することで、主材料との混
合時にシリカヒュームとパーライトの主材料中における
分散性が向上していることが確認できる。As shown in Table 2, the method of adding and mixing the previously obtained mixture of silica fume and pearlite to the main material (the product mixture according to the example) is the same as adding and mixing silica fume and pearlite to the main material individually. It can be seen that a mortar kneaded material having a high fluidity can be obtained in a shorter mixing time than that of the mortar mixture (product mixture according to the comparative example). Further, from Table 3, the cured product of the mortar kneaded material obtained by adding and mixing the mixture of silica fume and pearlite obtained in advance to the main material (the cured product of the product mixture according to the example) is individually A cured product having both higher flexural strength and compressive strength than a cured product of a mortar kneaded product obtained by adding and mixing silica fume and pearlite to a main material (a cured product of a product mixture according to a comparative example). You can see that. From these facts, it can be confirmed that by mixing silica fume and pearlite in advance, the dispersibility of silica fume and pearlite in the main material is improved when mixed with the main material.
【００４２】[0042]
【発明の効果】以上、説明した本発明によれば、補助材
料として使用する超微粉の取扱い性、及び超微粉の主材
料への混合性を飛躍的に向上させることができると共
に、超微粉と同様の課題を有する場合が多い超微粉とプ
レ混合する無機発泡粒自体の主材料への混合性等も向上
させることができる効果がある。更に、本発明は、その
使用量が少ない補助材料同士をプレ混合するものである
ため、その混合のための設備は大掛かりなものを必要と
せず、費用の高騰を招くことなく上記効果が得られ、工
業的利用価値が高い。According to the present invention described above, the handleability of the ultrafine powder used as an auxiliary material and the mixing property of the ultrafine powder with the main material can be remarkably improved. There is an effect that the mixing property of the inorganic expanded particles themselves, which are often pre-mixed with the ultrafine powder, often having similar problems, to the main material can be improved. Further, since the present invention pre-mixes the auxiliary materials whose amount is small, the equipment for the mixing does not require a large-scale equipment, and the above-mentioned effects can be obtained without increasing the cost. High industrial value.
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１１年５月１９日[Submission date] May 19, 1999
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】請求項６[Correction target item name] Claim 6
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【手続補正２】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００３８[Correction target item name] 0038
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００３８】[0038]
【表２】 [Table 2]
Claims (11)
使用する超微粉と、同じく補助材料として使用する無機
発泡粒とを混合して成ることを特徴とする補助材料混合
物。An auxiliary material mixture comprising a mixture of an ultrafine powder used as an auxiliary material to be added to and mixed with a main material, and inorganic expanded particles also used as an auxiliary material.
ｍの無機発泡粒がであることを特徴とする、請求項１記
載の補助材料混合物。2. The method according to claim 1, wherein the inorganic expanded particles have an average particle size of 5 μm to 3 m.
The auxiliary material mixture according to claim 1, wherein m inorganic foam particles are:
若しくはそれ以下のかさ比重の無機発泡粒であることを
特徴とする、請求項１又は２記載の補助材料混合物。3. The method according to claim 1, wherein the inorganic foamed particles are substantially the same as the ultrafine powder,
The auxiliary material mixture according to claim 1, wherein the auxiliary material mixture is an inorganic foamed granule having a bulk specific gravity equal to or less than that.
を特徴とする、請求項１、２又は３記載の補助材料混合
物。4. The auxiliary material mixture according to claim 1, wherein the inorganic expanded particles are pearlite.
を特徴とする、請求項１、２、３又は４記載の補助材料
混合物。5. The auxiliary material mixture according to claim 1, wherein the ultrafine powder is silica fume.
く補助材料として使用する無機発泡粒とを先ず混合し、
その後、得られた補助材料混合物を主材料と混合或いは
混練することを特徴とする製品混合物の製造方法。6. An ultrafine powder to be used as an auxiliary material and inorganic expanded particles also used as an auxiliary material are first mixed,
Thereafter, the obtained auxiliary material mixture is mixed or kneaded with the main material, and a method for producing a product mixture.
ｍの無機発泡粒であることを特徴とする、請求項６記載
の製品混合物の製造方法。7. The method according to claim 1, wherein the inorganic expanded particles have an average particle size of 5 μm to 3 m.
7. The process for producing a product mixture according to claim 6, wherein the product is inorganic foamed particles of m.
若しくはそれ以下のかさ比重の無機発泡粒であることを
特徴とする、請求項６又は７記載の製品混合物の製造方
法。8. The method according to claim 1, wherein the inorganic expanded particles are substantially the same as the ultrafine powder.
The method for producing a product mixture according to claim 6, wherein the product is inorganic foamed granules having a bulk specific gravity of less than or equal to or less than that.
を特徴とする、請求項６、７又は８記載の製品混合物の
製造方法。9. The method for producing a product mixture according to claim 6, wherein the inorganic expanded particles are pearlite.
とを特徴とする、請求項６、７、８又は９記載の製品混
合物の製造方法。10. The method for producing a product mixture according to claim 6, wherein the ultrafine powder is silica fume.
少なくとも一種類以上を含むものであることを特徴とす
る、請求項６、７、８、９又は１０記載の製品混合物の
製造方法。11. The method for producing a product mixture according to claim 6, wherein the main material contains at least one of cement, water and aggregate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19968098A JP3005966B2 (en) | 1998-03-16 | 1998-06-30 | Auxiliary material mixture and method for producing a product mixture using the auxiliary material mixture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10-84980 | 1998-03-16 | ||
| JP8498098 | 1998-03-16 | ||
| JP19968098A JP3005966B2 (en) | 1998-03-16 | 1998-06-30 | Auxiliary material mixture and method for producing a product mixture using the auxiliary material mixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11322384A true JPH11322384A (en) | 1999-11-24 |
| JP3005966B2 JP3005966B2 (en) | 2000-02-07 |
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ID=26425947
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|---|---|---|---|
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| Country | Link |
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| JP (1) | JP3005966B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008162842A (en) * | 2006-12-28 | 2008-07-17 | Taiheiyo Material Kk | High-strength admixture for mortar or concrete |
| JP2009132568A (en) * | 2007-11-30 | 2009-06-18 | Taiheiyo Material Kk | Lightweight premix mortar |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101431506B (en) * | 2008-12-17 | 2012-09-05 | 炬力集成电路设计有限公司 | Method and apparatus for regulating frequency step value of subcarrier |
-
1998
- 1998-06-30 JP JP19968098A patent/JP3005966B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008162842A (en) * | 2006-12-28 | 2008-07-17 | Taiheiyo Material Kk | High-strength admixture for mortar or concrete |
| JP2009132568A (en) * | 2007-11-30 | 2009-06-18 | Taiheiyo Material Kk | Lightweight premix mortar |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3005966B2 (en) | 2000-02-07 |
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