JPH11349372A - Sulfur composition - Google Patents
Sulfur compositionInfo
- Publication number
- JPH11349372A JPH11349372A JP15731698A JP15731698A JPH11349372A JP H11349372 A JPH11349372 A JP H11349372A JP 15731698 A JP15731698 A JP 15731698A JP 15731698 A JP15731698 A JP 15731698A JP H11349372 A JPH11349372 A JP H11349372A
- Authority
- JP
- Japan
- Prior art keywords
- sulfur
- filler
- volume
- composition
- mixture
- 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.)
- Pending
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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/36—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing sulfur, sulfides or selenium
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (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】本発明は硫黄と鉱物質微粉末
からなる硫黄組成物に関する。より詳しくは、硫黄と鉱
物質微粉末を微粉化することにより鉱物質微粉末の量比
を高めてヒビ割れを抑制した高強度の硫黄組成物に関
し、この硫黄組成物を含む硬化体は耐酸性に優れ耐酸被
覆材として有用である。また、特に石油製品の脱硫によ
り生じた硫黄ならびに石炭火力発電所から産出されるフ
ライアッシュを用いれば産業副産物の有効な利用手段と
なる。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sulfur composition comprising sulfur and a fine mineral substance powder. More specifically, the present invention relates to a high-strength sulfur composition in which the amount ratio of mineral fine powder is increased by pulverizing sulfur and mineral fine powder to suppress cracking. It is useful as an acid resistant coating material. In particular, the use of sulfur produced by desulfurization of petroleum products and fly ash produced from a coal-fired power plant can be an effective means of utilizing industrial by-products.
【０００２】[0002]
【従来技術】硫黄に骨材を配合した硫黄モルタルないし
硫黄コンクリートが従来知られている。硫黄コンクリー
トを製造する場合、硫黄がブリージングとなって骨材と
分離するのを防止し、かつコンクリートのプラスチシチ
ーを向上させるために鉱物質粉末（フィラー）を配合す
ることが一般に行われる。さらにフィラーは硫黄が冷却
固化するときの収縮により生じる巣(空隙)の発生を防止
し強度増進にも寄与する。また、フィラーとしてフライ
アッシュを用いることにより耐水性を高めることも知ら
れている (特公昭55-49024号) 。2. Description of the Related Art Conventionally, sulfur mortar or sulfur concrete in which an aggregate is mixed with sulfur has been known. When producing sulfur concrete, it is common practice to mix mineral powders (fillers) in order to prevent the sulfur from breathing and separating from the aggregate and to improve the plasticity of the concrete. Further, the filler prevents the generation of cavities (voids) caused by shrinkage when the sulfur is cooled and solidified, and also contributes to an increase in strength. It is also known to increase the water resistance by using fly ash as a filler (Japanese Patent Publication No. 55-49024).
【０００３】以上のことから、硫黄コンクリートにおい
ては、フィラーの添加量が多いほど好ましいように思わ
れるが、フィラー自体は硬化性を有しないので、フィラ
ーの添加量が多くなると強度が低下し、また均質な混合
物が得られ難くなる。そこで従来の硫黄コンクリートで
はフィラーの添加量は硫黄１体積部に対して１体積部未
満のものが多い。このため、硫黄の固化収縮による空隙
の発生を十分に防止することができず、ヒビ割れを生じ
易い問題がある。[0003] In view of the above, in sulfur concrete, it seems that the larger the amount of filler added, the more preferable. However, since the filler itself does not have curability, the strength decreases as the amount of filler added increases. It becomes difficult to obtain a homogeneous mixture. Therefore, in conventional sulfur concrete, the amount of filler added is often less than 1 part by volume per 1 part by volume of sulfur. For this reason, the formation of voids due to the solidification shrinkage of sulfur cannot be sufficiently prevented, and there is a problem that cracks are likely to occur.
【０００４】[0004]
【発明が解決しようとする課題】本発明は従来の硫黄コ
ンクリート等における上記問題を解決したものであり、
鉱物質微粉末の混合量を従来よりも格段に多くしながら
も硬化体の強度低下を抑え、かつヒビ割れが大幅に少な
く、表面の平滑性ないし緻密性に優れた硫黄組成物を提
供するものである。SUMMARY OF THE INVENTION The present invention has solved the above-mentioned problems in conventional sulfur concrete and the like.
One that provides a sulfur composition that suppresses the decrease in strength of the cured product, has significantly less cracking, and has excellent surface smoothness or denseness, while significantly increasing the mixing amount of the mineral substance fine powder compared to the conventional one. It is.
【０００５】[0005]
【課題を解決するための手段】すなわち、本発明は以下
の構成からなる硫黄組成物に関するものである。 （１）０.７５mm篩全通の硫黄とブレーン比表面積２０
００cm2/g以上の鉱物質微粉末との混合物からなり、硫
黄と鉱物質微粉末の混合比が硫黄１体積部に対して鉱物
質微粉末が１体積部以上であることを特徴とする硫黄組
成物。 （２）硫黄１体積部に対して鉱物質微粉末１体積部以上
を混合して粉砕し、そのブレーン比表面積を１０００cm
2/g以上としたことを特徴とする硫黄組成物。That is, the present invention relates to a sulfur composition having the following constitution. (1) Sulfur and Blaine specific surface area 20 throughout the 0.75 mm sieve
Sulfur, comprising a mixture of mineral fine powder of at least 00 cm 2 / g, wherein the mixing ratio of sulfur to mineral fine powder is at least 1 part by volume of mineral powder to 1 part by volume of sulfur. Composition. (2) One part by volume of sulfur is mixed with 1 part by volume or more of a mineral fine powder and pulverized, and the Blaine specific surface area is set to 1000 cm.
A sulfur composition characterized by being 2 / g or more.
【０００６】[0006]
【発明の実施形態】以下、本発明を実施の形態に基づき
具体的に説明する。本発明の硫黄組成物は硫黄と鉱物質
微粉末(フィラー)との混合物であり、硫黄とフィラーを
微粉化することにより、硫黄とフィラーの均質な分散を
図り、硬化体の強度低下を抑制してフィラーの混合量を
高めたものである。ここに用いられる硫黄は単体硫黄が
挙げられる。このような硫黄としては石油精製の工程で
副産される硫黄を利用することができる。この副生硫黄
を利用することにより産業副産物の有効利用を促進して
廃棄物の低減を図ることができ、環境に対する配慮のう
えからも好ましい。鉱物質微粉末としては、岩石粉、高
炉スラグ粉、フライアッシュ等を用いることができる。
なお、特にフライアッシュは微粉末で粉砕する必要も無
く使用でき、また産業副産物の有効利用という観点から
も本発明に用いるに最も適した材料の一つである。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be specifically described based on embodiments. The sulfur composition of the present invention is a mixture of sulfur and a mineral substance fine powder (filler), and by pulverizing the sulfur and the filler, achieves a uniform dispersion of the sulfur and the filler, and suppresses a decrease in strength of the cured product. Thus, the amount of the filler is increased. The sulfur used here includes elemental sulfur. As such sulfur, sulfur produced by-product in a petroleum refining process can be used. By using this by-product sulfur, it is possible to promote the effective use of industrial by-products and to reduce waste, which is preferable from the viewpoint of environmental consideration. Rock powder, blast furnace slag powder, fly ash and the like can be used as the mineral substance fine powder.
In particular, fly ash can be used without necessity of pulverization with fine powder, and is one of the most suitable materials for use in the present invention from the viewpoint of effective use of industrial by-products.
【０００７】本発明に係る硫黄組成物の一つの態様は、
予め微粉化した硫黄とフィラーとを混合したものであ
る。すなわち、０.７５mm篩全通の硫黄と、ブレーン比
表面積２０００cm2/g以上、好ましくは２５００cm2/g以
上のフィラーとを混合したものである。硫黄の粒度が
０.７５mmより大きいとフィラーと混合した場合に均一
な分散が得られ難くなる。この粒度の硫黄を得る方法は
特に限定されない。溶融した硫黄をスプレーして固化さ
せて製造しても良く、固化している硫黄を粉砕して製造
しても良い。フィラーのブレーン比表面積が２０００cm
2/g未満では硫黄との均質な混合が得られ難くなる。こ
の粒度のフィラーを得る方法は限定されない。岩石や高
炉スラグを粉砕しても良く、この粒度のフライアッシュ
を選択して用いても良い。[0007] One embodiment of the sulfur composition according to the present invention is:
It is a mixture of sulfur that has been finely divided in advance and a filler. That is, a sulfur 0.75mm sieve Zentsu, Blaine specific surface area of 2000 cm 2 / g or more, preferably a mixture of a more fillers 2500 cm 2 / g. If the particle size of sulfur is larger than 0.75 mm, it is difficult to obtain a uniform dispersion when mixed with a filler. The method for obtaining sulfur having this particle size is not particularly limited. It may be manufactured by spraying and solidifying molten sulfur, or may be manufactured by pulverizing solidified sulfur. Filler specific surface area is 2000cm
If it is less than 2 / g, it is difficult to obtain a homogeneous mixture with sulfur. The method for obtaining a filler having this particle size is not limited. Rock or blast furnace slag may be crushed, and fly ash of this particle size may be selected and used.
【０００８】硫黄とフィラーの混合比は硫黄１体積部に
対しフィラー１体積部以上、好ましくは１.５体積部以
上である。フィラーの量が硫黄より少ないと、冷却固化
時の硫黄の収縮による空隙の発生を十分に抑制できず、
ヒビ割れを招くので好ましくない。なお、ヒビ割れ防止
にはフィラーの混合量が多いほど効果的であるが、相対
的に硫黄含有量が少なくなり硬化体の強度が低下するの
で、実用上の強度を確保するには硫黄１体積部に対し、
フィラー１０体積部以下が適当である。The mixing ratio of sulfur to filler is at least 1 part by volume of filler to 1 part by volume of sulfur, preferably at least 1.5 parts by volume. If the amount of the filler is less than sulfur, the generation of voids due to the shrinkage of sulfur during cooling and solidification cannot be sufficiently suppressed,
It is not preferable because it causes cracking. It should be noted that the more the filler is mixed, the more effective in preventing cracks. However, since the sulfur content is relatively low and the strength of the cured product is reduced, one volume of sulfur is required to secure practical strength. For the department,
A filler of 10 parts by volume or less is appropriate.
【０００９】本発明に係る硫黄組成物の他の態様は、硫
黄とフィラーとを混合した後に、あるいは混合しなが
ら、所定の粒度まで混合物を粉砕したものである。すな
わち、硫黄１体積部に対してフィラー１体積部以上を混
合して粉砕し、そのブレーン比表面積を１０００cm2/g
以上としたものである。ここに用いられる硫黄はフィラ
ーと混合粉砕して均質化させるので、その形態は粉末、
フレーク、塊状、液状を問わない。なお、硫黄は、石油
精製の工程で排出されるときは液状であり、液状のもの
が大量の取扱いに適すること、また微粉化すると粉塵爆
発を引き起こす可能性があることなどから、溶融液状化
させた硫黄を用いるのが便利であり、たとえばボールミ
ルなどの粉砕機にフライアッシュを供給しながら液状硫
黄を噴霧して粉砕すると、粉塵爆発の危険性の低い硫黄
とフィラーの混合物を容易に得ることができる。Another aspect of the sulfur composition according to the present invention is that the mixture is pulverized to a predetermined particle size after or while mixing the sulfur and the filler. That is, 1 part by volume or more of filler is mixed with 1 part by volume of sulfur and pulverized, and the Blaine specific surface area is 1000 cm 2 / g.
This is what has been described above. Since the sulfur used here is mixed and crushed with the filler and homogenized, its form is powder,
It does not matter whether it is flake, lump or liquid. Sulfur is a liquid when it is discharged in the oil refining process, and because it is suitable for large-volume handling and may cause a dust explosion if it is pulverized, etc. It is convenient to use sulfur that has been added.For example, if liquid sulfur is sprayed and pulverized while supplying fly ash to a pulverizer such as a ball mill, a mixture of sulfur and a filler having a low risk of dust explosion can be easily obtained. it can.
【００１０】硫黄とフィラーの混合比は、先の場合と同
様に、硫黄１体積部に対しフィラー１体積部以上、好ま
しくは１.５体積部以上である。フィラーの量が硫黄よ
り少ないと、冷却固化時の硫黄の収縮による空隙の発生
を十分に抑制できず、ヒビ割れを招くので好ましくな
い。なお、硫黄とフィラーを混合粉砕する本態様では、
フィラーの量をやや多くすることにより粉砕工程での粉
塵爆発の危険性をより低下させることができる。また、
本態様の場合には、硫黄が均質に混合されるだけでな
く、硫黄がフィラーの周りを薄く被覆した形態となるの
で、より高強度の組成物を得ることができ、従ってフィ
ラーの混合量を多くすることが可能であり、硫黄１体積
部に対してフィラーを２０体積部程度まで用いても実用
強度の硬化体を得ることができる。The mixing ratio of sulfur to filler is, as in the previous case, 1 part by volume of filler to 1 part by volume of sulfur, preferably 1.5 parts by volume or more. If the amount of the filler is less than sulfur, the generation of voids due to the shrinkage of sulfur during cooling and solidification cannot be sufficiently suppressed, and cracks are caused, which is not preferable. In this embodiment of mixing and pulverizing the sulfur and the filler,
By slightly increasing the amount of the filler, the risk of dust explosion in the pulverizing step can be further reduced. Also,
In the case of this embodiment, not only is the sulfur homogeneously mixed, but also a form in which the sulfur is thinly coated around the filler, so that a higher strength composition can be obtained. The amount can be increased, and a cured product of practical strength can be obtained even when the filler is used up to about 20 parts by volume with respect to 1 part by volume of sulfur.
【００１１】以上の硫黄組成物を用いて硬化体を得る方
法としては、(イ)この硫黄組成物を含む混合物を硫黄の
融点以上に加熱して型枠に流し込み冷却する方法、(ロ)
この混合物を型枠に流し込んだ後に硫黄の融点以上に加
熱して冷却する方法などがある。さらに、加熱中に圧力
を加え、混合物を圧密すれば密実で高強度の硬化体を得
ることができる。As a method of obtaining a cured product using the above sulfur composition, (a) a method of heating a mixture containing the sulfur composition to a temperature not lower than the melting point of sulfur, pouring the mixture into a mold, and cooling (b)
There is a method in which the mixture is poured into a mold, heated to a temperature higher than the melting point of sulfur, and cooled. Further, if pressure is applied during heating to consolidate the mixture, a dense and high-strength cured product can be obtained.
【００１２】[0012]
【発明の効果】本発明の硫黄組成物は、以上説明したよ
うに、従来のものよりも鉱物質微粉末(フィラー)の混合
量が格段に多く、従って、ヒビ割れが殆ど生じない硫黄
硬化体を得ることができる。しかも、本発明の硫黄組成
物はフィラーの混合量が多いにもかかわらず高強度で表
面の平滑性および緻密性に優れた硬化体が得られる。本
発明の硫黄組成物によって得られる硬化体は、土木、建
築分野の部材として使用できることはもちろん、強い耐
酸性を有することから特に耐酸被覆材として有用であ
る。また、石油精製工程で排出される硫黄と石炭燃焼に
より排出されるフライアッシュを原料として用いること
により、従来は産業廃棄物として処理されていたものを
有用資源としてリサイクルすることができる。As described above, the sulfur composition of the present invention contains a much larger amount of fine mineral powder (filler) than conventional ones, and therefore, is a sulfur cured product that hardly causes cracks. Can be obtained. In addition, the sulfur composition of the present invention can provide a cured product having high strength and excellent surface smoothness and denseness despite the large amount of filler. The cured product obtained from the sulfur composition of the present invention can be used not only as a member in the fields of civil engineering and construction, but also has a strong acid resistance, and is particularly useful as an acid-resistant coating material. In addition, by using sulfur discharged in the oil refining process and fly ash discharged from coal combustion as raw materials, what has been conventionally treated as industrial waste can be recycled as useful resources.
【００１３】[0013]
【実施例】実施例１ ５mm篩全通で０.７５mm篩残が９０vol％の硫黄(D500
0)、０.７５mm篩全通の硫黄(D750)と、ブレーン比表面
積２８００cm2/gのフライアッシュ(D2800)、ブレーン比
表面積１５００cm2/gのフライアッシュ(D1500)を、表１
に示す体積比率に配合し、ホバートミキサで１分間混合
した後に、この混合物を型枠（径５cm×高15cm）に入
れ、１２５℃に加熱し、突き棒(径4.9cm)を用いて０.０
５Ｎ/mm2の圧力を加えて圧密した後に、２０℃まで冷却
して脱型し、硬化体を得た。この硬化体を高さ５cmにカ
ットして圧縮強度試験を実施した。また、その表面の緻
密性と凍結融解性を調べた。この結果を表１に示した。
本発明の範囲の試料は何れも硬化体にヒビ割れが見られ
ず、凍結融解性の良好であるが、本発明の範囲を外れる
比較試料はヒビ割れを生じ、凍結融解性にも劣る。EXAMPLES Example 1 A 0.75 mm sieve residue of 90 vol% sulfur (D500) was passed through a 5 mm sieve.
0), sulfur (D750) passed through a 0.75 mm sieve, fly ash (D2800) having a Blaine specific surface area of 2800 cm 2 / g, and fly ash (D1500) having a Blaine specific surface area of 1500 cm 2 / g.
After mixing for 1 minute with a Hobart mixer, the mixture was placed in a mold (diameter 5 cm × height 15 cm), heated to 125 ° C., and squeezed using a plunger (diameter 4.9 cm). 0
After consolidating by applying a pressure of 5 N / mm 2 , it was cooled to 20 ° C. and demolded to obtain a cured product. This cured product was cut to a height of 5 cm, and a compression strength test was performed. In addition, the denseness and freeze-thaw properties of the surface were examined. The results are shown in Table 1.
All samples within the range of the present invention show no cracks in the cured product and have good freeze-thaw properties, but comparative samples outside the range of the present invention have cracks and poor freeze-thaw properties.
【００１４】[0014]
【表１】 [Table 1]
【００１５】実施例２ 溶融状の硫黄(LS)とフレーク状の硫黄(FS)、および石灰
石粉末(５号粒度：5L)とフライアッシュ(ブレーン比面
積2800cm2/g：FA)を用い、これらを表２に示す体積比率
に配合し、ボールミルで粉砕した。この粉砕混合物を型
枠（径５cm×高15cm）に入れ、１２５℃に加熱し、突き
棒(径4.9cm)を用いて０.０５Ｎ/mm2の圧力を加えて圧密
した後に、２０℃まで冷却して脱型し、硬化体を得た。
この硬化体を高さ５cmにカットして圧縮強度試験を実施
した。この結果を表２に示した。本発明の範囲の試料は
何れも硬化体表面にヒビ割れが見られず平滑であるが、
本発明の範囲を外れる比較試料は硬化体の表面にヒビ割
れを生じ、あるいは表面が粗く、緻密性に劣る。 Example 2 Melt sulfur (LS) and flake sulfur (FS), and limestone powder (No. 5 particle size: 5 L) and fly ash (Brain specific area: 2800 cm 2 / g: FA) were used. Was blended in the volume ratio shown in Table 2 and pulverized by a ball mill. This crushed mixture is placed in a mold (diameter 5 cm × height 15 cm), heated to 125 ° C., compacted by applying a pressure of 0.05 N / mm 2 using a ram (diameter 4.9 cm), and then to 20 ° C. After cooling, the mold was removed to obtain a cured product.
This cured product was cut to a height of 5 cm, and a compression strength test was performed. The results are shown in Table 2. Samples within the scope of the present invention are smooth without any cracks on the cured body surface,
Comparative samples outside the range of the present invention have cracks on the surface of the cured product, or have a rough surface and poor denseness.
【００１６】[0016]
【表２】 [Table 2]
Claims (2)
面積２０００cm2/g以上の鉱物質微粉末との混合物から
なり、硫黄と鉱物質微粉末の混合比が硫黄１体積部に対
して鉱物質微粉末が１体積部以上であることを特徴とす
る硫黄組成物。1. A mixture of sulfur passing through a 0.75 mm sieve and fine mineral powder having a Blaine specific surface area of 2000 cm 2 / g or more, wherein the mixing ratio of sulfur to the fine mineral powder is 1 part by volume of sulfur. A sulfur composition, wherein the mineral substance powder is at least 1 part by volume.
積部以上を混合して粉砕し、そのブレーン比表面積を１
０００cm2/g以上としたことを特徴とする硫黄組成物。2. One part by volume of sulfur is mixed with 1 part by volume or more of a mineral fine powder and pulverized, and has a Blaine specific surface area of 1 part by volume.
A sulfur composition having a concentration of 000 cm 2 / g or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15731698A JPH11349372A (en) | 1998-06-05 | 1998-06-05 | Sulfur composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15731698A JPH11349372A (en) | 1998-06-05 | 1998-06-05 | Sulfur composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11349372A true JPH11349372A (en) | 1999-12-21 |
Family
ID=15647034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15731698A Pending JPH11349372A (en) | 1998-06-05 | 1998-06-05 | Sulfur composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11349372A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011114923A1 (en) * | 2010-03-15 | 2011-09-22 | Ｊｘ日鉱日石エネルギー株式会社 | Modified sulfur material and method for producing same |
-
1998
- 1998-06-05 JP JP15731698A patent/JPH11349372A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011114923A1 (en) * | 2010-03-15 | 2011-09-22 | Ｊｘ日鉱日石エネルギー株式会社 | Modified sulfur material and method for producing same |
| JP2011190142A (en) * | 2010-03-15 | 2011-09-29 | Jx Nippon Oil & Energy Corp | Modified sulfur material and method for producing the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI543957B (en) | Method for manufacturing hydrated solidified body and hydrated solidified body | |
| JP6426507B2 (en) | Manufacturing method of recycled civil engineering materials | |
| CN105174823A (en) | Asphalt concrete packing and asphalt concrete | |
| US4318822A (en) | Production of agent for desulfurizing crude iron and steel melts | |
| JPH11349372A (en) | Sulfur composition | |
| JP2006272061A (en) | Red mud-containing sulfur solidified body and its production method | |
| JP5668640B2 (en) | Steel slag roadbed material and method of manufacturing steel slag roadbed material | |
| JP6015585B2 (en) | Hydrated cured body | |
| JPH02160895A (en) | Foundation conditioner | |
| JP2013028518A (en) | Artificial stone made of expansion-controlled iron and steel slag hydration-solidified body, and method for producing the same | |
| JP2000072523A (en) | Sulfur concrete product | |
| JP4382937B2 (en) | Method for producing coal-ash quality artificial aggregate | |
| JP2001261425A (en) | Sulfur composition molding raw material and its manufacturing method | |
| JP2019172557A (en) | Production method of subbase material for road | |
| JP4574789B2 (en) | Cement composition | |
| JPH05279095A (en) | Method of utilizing converter slug and preliminarily treated | |
| JP3958914B2 (en) | Solidification method of steelmaking slag | |
| JP6931998B2 (en) | Mold powder manufacturing method | |
| KR910006004B1 (en) | Making process for ascon by dust | |
| JPH10274695A (en) | Method for treating radioactive concrete waste and method for manufacturing filling mortar that solidifies radioactive waste | |
| CN112661453A (en) | Method for preparing full-high titanium slag concrete by recycling high titanium slag sludge | |
| JP2021167530A (en) | Method for producing fluidized soil | |
| RU2259337C2 (en) | Method of preparation of concrete mix | |
| JPH11292588A (en) | Method for reducing water absorptivity of blast furnace slowly cooled slag | |
| JP2005289787A (en) | Sulfur slurry, method of preparing sulfur slurry and method of manufacturing sulfur solidified body using the same sulfur slurry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20050217 |
|
| RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20070816 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20071226 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20080108 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080305 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090106 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20090512 |