JPH09100470A - Hardening of soil - Google Patents
Hardening of soilInfo
- Publication number
- JPH09100470A JPH09100470A JP15104396A JP15104396A JPH09100470A JP H09100470 A JPH09100470 A JP H09100470A JP 15104396 A JP15104396 A JP 15104396A JP 15104396 A JP15104396 A JP 15104396A JP H09100470 A JPH09100470 A JP H09100470A
- Authority
- JP
- Japan
- Prior art keywords
- soil
- slag
- weight
- alumina
- blast furnace
- 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
- C04B30/00—Compositions for artificial stone, not containing binders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00732—Uses not provided for elsewhere in C04B2111/00 for soil stabilisation
-
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、製鋼・溶銑予備処
理スラグその他を用いて土壌を安価で確実に硬化させる
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 a method for reliably hardening soil at low cost using steelmaking / hot metal pretreatment slag or the like.
【０００２】[0002]
【従来の技術】一般に製鋼・溶銑予備処理スラグ（以下
でスラグを略す）は、スラグ中に石灰が遊離した形（以
下で遊離ＣａＯと称す）で残存しているため、そのまま
の形で道路材、土木用材などに利用した場合、遊離Ｃａ
Ｏの水酸化、炭酸化により膨張が起こることが知られて
いる。そこで、現在はスラグを自然冷却し、破砕した
後、屋外で山積みするかあるいは人為的に水蒸気と接触
させることにより遊離ＣａＯを安定化させることが一般
的に行われている。一方、スラグ中の遊離ＣａＯを利用
して硬化性を発現させることも行われている。例えば、
特公平３−２７５９７号公報に開示されるように溶銑予
備処理スラグに石膏、石灰、セメントクリンカー、ポル
トランドセメント、高炉セメント、高炉水砕、石炭灰の
１種または２種以上を混ぜてブレーン値が３０００〜４
５００ｍ2 ／ｇとなるように粉砕したものをダスト、汚
泥または焼却灰の固化材として利用する方法がある。ま
た、特開昭５２−５６７０９号公報には製鋼スラグ中の
石灰ではなく、石灰そのものと石膏およびアルミナ含有
反応性粘土鉱物を組み合わせて埋戻し土を安定化処理す
る方法が開示されている。2. Description of the Related Art Generally, steelmaking / hot metal pretreatment slag (hereinafter abbreviated as slag) has lime remaining in the slag in a free form (hereinafter called free CaO). When used as a civil engineering material, free Ca
It is known that swelling occurs due to hydroxylation and carbonation of O. Therefore, at present, it is common practice to naturally cool slag, crush it, and then pile it up outdoors or artificially contact it with water vapor to stabilize free CaO. On the other hand, free CaO in slag is also utilized to develop curability. For example,
As disclosed in Japanese Examined Patent Publication No. 3-27597, one or more of gypsum, lime, cement clinker, Portland cement, blast furnace cement, granulated blast furnace, and coal ash are mixed with hot metal pretreatment slag to obtain a Blaine value. 3000-4
There is a method of using what is pulverized to 500 m 2 / g as a solidifying material for dust, sludge or incinerated ash. Further, Japanese Patent Laid-Open No. 52-56709 discloses a method of stabilizing backfill soil by combining not lime in steelmaking slag but lime itself and gypsum- and alumina-containing reactive clay minerals.
【０００３】更に、含水率が高く軟弱な土壌を硬化させ
る方法として、現在ソイルセメントが用いられる場合も
あるが、ソイルセメントは一般に高価である。Further, soil cement is currently used as a method for hardening soft soil having a high water content, but soil cement is generally expensive.
【０００４】[0004]
【発明が解決しようとする課題】本発明者は、安価な方
法として特公平３−２７５９７号公報に開示された方法
を検討し、溶銑予備処理スラグ、石膏、高炉セメントを
用いて土壌の硬化を試みたが、ブレーン値が３０００〜
４５００ｍ2 ／ｇになるように粉砕するため、粉砕コス
トが高くなること、またアルミナの少ない土壌ではエト
リンガイトの生成が少なく十分な硬化性が得られない、
などの問題があった。次に、特開昭５２−５６７０９号
公報に開示された方法も検討したが、石灰そのものは高
価であることやアルミナ含有反応性粘土鉱物はセメント
や陶磁器の原料として重要であり、現在良質のものは枯
渇しつつあるという問題があった。DISCLOSURE OF THE INVENTION The present inventor has examined the method disclosed in Japanese Patent Publication No. 3-27597 as an inexpensive method, and uses the hot metal pretreatment slag, gypsum, and blast furnace cement to cure soil. I tried, but the Blaine value is 3000-
Since it is pulverized to 4500 m 2 / g, the pulverization cost is high, and ettringite is less produced in soil containing less alumina, and sufficient curability cannot be obtained.
There was such a problem. Next, the method disclosed in Japanese Unexamined Patent Publication No. 52-56709 was also examined. However, lime itself is expensive, and the alumina-containing reactive clay mineral is important as a raw material for cement and ceramics, and is currently of high quality. Had the problem of being depleted.
【０００５】本発明はこれらの問題を解決し、スラグや
石炭灰のような産業廃棄物を主体として土壌を安価で確
実に硬化させることを目的とするものである。An object of the present invention is to solve these problems and to solidify the soil inexpensively and reliably, mainly using industrial waste such as slag and coal ash.
【０００６】[0006]
【課題を解決するための手段】本発明は、上述の課題を
解決するもので、水分を含む土壌に、製鋼スラグ及び／
または溶銑予備処理スラグ、高炉水砕微粉末、石膏、石
炭灰およびアルミナ系物質を配合して硬化させることを
特徴とする。具体的には、水分を含む土壌に、最大粒径
が３〜５０mmの範囲に入るように破砕した製鋼スラグ及
び／または溶銑予備処理スラグを配合後の総乾燥重量に
対し１５〜６５重量％、高炉水砕微粉末を０．５〜５重
量％、石膏を０．５〜１０重量％、石炭灰を１〜１０重
量％、アルミナ系物質を１〜１０重量％配合して前記土
壌を硬化させることを要旨とする。DISCLOSURE OF THE INVENTION The present invention is to solve the above-mentioned problems, and to the soil containing water, steelmaking slag and / or
Alternatively, it is characterized in that hot metal pretreatment slag, granulated blast furnace fine powder, gypsum, coal ash and an alumina-based material are mixed and cured. Specifically, 15 to 65% by weight based on the total dry weight of the steel-containing slag crushed so that the maximum particle size falls within the range of 3 to 50 mm and / or the hot metal pretreatment slag in the soil containing water, 0.5 to 5% by weight of ground blast furnace fine powder, 0.5 to 10% by weight of gypsum, 1 to 10% by weight of coal ash, and 1 to 10% by weight of an alumina-based substance are mixed to harden the soil. That is the summary.
【０００７】[0007]
【作用】以下に本発明を詳細に説明する。転炉や混銑車
などで発生した製鋼スラグ及び／または溶銑予備処理ス
ラグを冷却・凝固させ最大粒径が３〜５０mmの範囲に入
るように破砕機等で破砕する。次に沼地や浚渫汚泥など
含水率が約３０％以上の高含水率で軟弱な土壌に、配合
後の総乾燥重量に対し製鋼スラグ及び／または溶銑予備
処理スラグを１５〜６５重量％、高炉水砕微粉末を０．
５〜５重量％、石膏を０．５〜１０重量％、石炭灰を１
〜１０重量％、アルミナ系物質を１〜１０重量％配合し
て硬化させる。このとき、スラグからＣａＯ、高炉水砕
微粉末からＳｉＯ2 、石膏からＣａＳＯ4 、アルミナ系
物質からＡｌ2 Ｏ3 が溶出し、水中で反応してケイ酸カ
ルシウム水和物やエトリンガイトという化合物を生成す
る。その際の化学反応式は次のとおりである。 １）…ｘＣａＯ＋ｙＳｉＯ2 ＋ｚＨ2 Ｏ→ｘＣａＯ・ｙＳｉＯ2 ・ｚＨ2 Ｏ ２）…３ＣａＯ＋Ａｌ2 Ｏ3 ＋３ＣａＳＯ4 ＋３２Ｈ2 Ｏ→３ＣａＯ・Ａｌ2 Ｏ 3 ・３ＣａＳＯ4 ・３２Ｈ2 Ｏ ケイ酸カルシウム水和物やエトリンガイトは不溶性であ
り、これらの化合物が水を結晶水として取り込みながら
固体として析出し、空間に占める固体の割合が増加する
ことにより硬化性が発現する。ケイ酸カルシウム水和物
やエトリンガイトを積極的に生成させるには、ＣａＯ，
ＣａＳＯ4 ，Ｈ2 ＯとともにＳｉＯ2 とＡｌ2 Ｏ3 を供
給する必要がある。本発明ではＳｉＯ2 源として反応性
の高い高炉水砕微粉末、Ａｌ2 Ｏ3 源としてＡｌ2 Ｏ3
の溶出量が多いアルミナ系物質を用いている。石炭灰の
機能は、各材料を混合する際の分散性の向上である。石
炭灰は平均粒径１５μｍ程度で球状に近い粒子が多く含
まれる。これにより集塊状となっている土壌のフロック
構造に進入して、ＣａＯ，ＣａＳＯ4 ，Ｈ2 Ｏ，ＳｉＯ
2 ，Ａｌ2 Ｏ3 などの化学種が拡散するスペースを増加
させる。スラグの最大粒径が３〜５０mmの範囲に入るよ
うに破砕するのは、３mm未満では破砕コストが高くな
る。５０mmを越えると土壌との均一な混合が困難になり
十分な硬化性が得られない。スラグの配合量を１５〜６
５重量％とするのは、１５重量％未満ではＣａＯが不足
し、ケイ酸カルシウム水和物やエトリンガイトが十分に
生成しない。６５重量％を越えるとケイ酸カルシウム水
和物やエトリンガイト生成に必要な他の物質が不足し、
未反応の遊離ＣａＯが残存する。高炉水砕微粉末の配合
量を０．５〜５重量％とするのは、０．５重量％未満で
はＳｉＯ2 の溶出量が不足する。５重量％を越えるとケ
イ酸カルシウム水和物やエトリンガイト生成に必要な他
の物質が不足し、未反応の高炉水砕微粉末が残存する。
高炉スラグのなかでは高炉水砕微粉末が最も好ましい。
高炉水砕スラグでも未破砕品は製造時の水との接触によ
り表面が不活性層に覆われており、反応性が十分ではな
い。従って高炉水砕スラグを粉砕した高炉水砕微粉末を
用いる。その平均粒径の範囲は２〜４０μｍが望まし
い。石膏の配合量を０．５〜１０重量％とするのは、
０．５重量％未満ではＣａＳＯ4 が不足しエトリンガイ
トが十分に生成しない。１０重量％を越えるとエトリン
ガイトが過剰に生成し、その結晶成長圧により組織が破
壊される。石炭灰の配合量を１〜１０重量％とするの
は、１重量％未満では分散性が不十分であり、１０重量
％を越えると空隙が増加して硬化性が低下する。アルミ
ナ系物質の配合量を１〜１０重量％とするのは、１重量
％未満ではＡｌ2 Ｏ3 の溶出量が不足する。１０重量％
を越えるとエトリンガイトが過剰に生成し、その結晶成
長圧により組織が破壊される。ここでアルミナ系物質と
はアルミナ系耐火物廃材、赤泥、ボーキサイト、ばん土
頁岩、などを指す。The present invention will be described below in detail. Converter and torch car
Steelmaking slag and / or hot metal pretreatment slag generated in
Cools and solidifies the rug and puts the maximum particle size in the range of 3 to 50 mm
As in the crusher. Next, swamps and dredging sludge
Blended in soft soil with high water content of about 30% or more
Steelmaking slag and / or hot metal reserve to total dry weight after
The treated slag is 15 to 65% by weight, and the granulated blast furnace fine powder is 0.
5-5% by weight, gypsum 0.5-10% by weight, coal ash 1
-10% by weight, 1-10% by weight of alumina-based material
To cure. At this time, slag to CaO and blast furnace water granulation
Fine powder to SiOTwo , Plaster from CaSOFour , Alumina type
Material from AlTwo OThree Elutes, reacts in water and reacts with silica
It produces compounds such as lucium hydrate and ettringite
You. The chemical reaction formula in that case is as follows. 1) ... xCaO + ySiOTwo + ZHTwo O → xCaO ・ ySiOTwo ・ ZHTwo O 2) ... 3CaO + AlTwo OThree + 3CaSOFour + 32HTwo O → 3CaO ・ AlTwo O Three ・ 3CaSOFour ・ 32HTwo O calcium silicate hydrate and ettringite are insoluble
While these compounds take in water as crystal water
Precipitates as a solid and increases the proportion of solid in the space
By this, curability is developed. Calcium silicate hydrate
In order to actively produce ettringite and
CaSOFour , HTwo SiO with OTwo And AlTwo OThree Together with
Need to be paid. In the present invention, SiOTwo Reactive as a source
Granulated blast furnace fine powder, AlTwo OThree Al as a sourceTwo OThree
Alumina-based substances with a large elution amount of are used. Of coal ash
The function is to improve dispersibility when mixing each material. stone
Carbon ash contains many particles with an average particle size of about 15 μm and a nearly spherical shape.
I will. This is the floc of soil that is agglomerated
Entering the structure, CaO, CaSOFour , HTwo O, SiO
Two , AlTwo OThree Increased space for diffusion of chemical species such as
Let it. The maximum particle size of slag is in the range of 3 to 50 mm
As for crushing, if it is less than 3 mm, the crushing cost will be high.
You. If it exceeds 50 mm, it will be difficult to mix it uniformly with the soil.
Sufficient curability cannot be obtained. The amount of slag is 15 to 6
5% by weight means that CaO is insufficient if less than 15% by weight
However, calcium silicate hydrate and ettringite are sufficient
Do not generate. If it exceeds 65% by weight, calcium silicate water
Lack of other substances necessary for the production of Japanese and ettringite,
Unreacted free CaO remains. Blending of granulated blast furnace fine powder
The amount of 0.5 to 5% by weight means that less than 0.5% by weight.
Is SiOTwo The elution amount of is insufficient. If it exceeds 5% by weight
Others required for calcium hydrate hydrate and ettringite formation
Is not enough, and unreacted ground granulated blast furnace powder remains.
Among the blast furnace slag, granulated blast furnace fine powder is most preferable.
Uncrushed granulated blast furnace slag is produced by contact with water during manufacturing.
The surface is covered with an inert layer and the reactivity is not sufficient.
No. Therefore, granulated blast furnace granulated pulverized blast furnace slag
Used. The range of the average particle size is preferably 2 to 40 μm.
No. The gypsum content of 0.5-10% by weight is
If less than 0.5% by weight CaSOFour Lack of ettringey
Do not generate enough. Etrin over 10% by weight
Gite is excessively generated, and the crystal growth pressure destroys the structure.
Be destroyed. The amount of coal ash is 1 to 10% by weight
Is less than 1% by weight, the dispersibility is insufficient.
If it exceeds%, the voids increase and the curability decreases. Aluminum
1 to 10% by weight is 1% by weight
Al less than%Two OThree The elution amount of is insufficient. 10% by weight
Over, ettringite is excessively formed, and its crystallization occurs.
The tissue is destroyed by the long pressure. Where the alumina-based material
Is alumina refractory waste material, red mud, bauxite, soil
Refers to shale, etc.
【０００８】[0008]
【実施例】以下、本発明を実施例に基づいて説明する。
本実施例の製鋼スラグ、高炉水砕スラグ、石炭灰、アル
ミナ系物質、アルミナ含有反応性粘土鉱物の化学組成を
表１に示す。ここに示したアルミナ系物質はアルミナ系
耐火物廃材、アルミナ含有反応性鉱物はハロイサイトで
ある。EXAMPLES The present invention will be described below based on examples.
Table 1 shows the chemical compositions of the steelmaking slag, the granulated blast furnace slag, the coal ash, the alumina-based material, and the alumina-containing reactive clay mineral of this example. The alumina-based material shown here is an alumina-based refractory waste material, and the alumina-containing reactive mineral is halloysite.
【０００９】[0009]
【表１】 [Table 1]
【００１０】製鋼スラグを冷却・凝固させた後、最大粒
径が３〜５０mmの範囲に入るように破砕し磁選した。こ
の製鋼スラグを各種物質と表２および表３に示す割合で
含水率３２％の土壌と配合し、材令２８日の１軸圧縮強
度を測定した。その測定値を表２および表３に示す。表
２が本発明例、表３が比較例である。After the steelmaking slag was cooled and solidified, it was crushed and magnetically selected so that the maximum grain size was in the range of 3 to 50 mm. This steelmaking slag was mixed with various substances and soil having a water content of 32% at the ratios shown in Tables 2 and 3, and the uniaxial compressive strength on the 28th day was measured. The measured values are shown in Tables 2 and 3. Table 2 is an example of the present invention, and Table 3 is a comparative example.
【００１１】[0011]
【表２】 [Table 2]
【００１２】[0012]
【表３】 [Table 3]
【００１３】本発明例１〜９で高炉水砕微粉末の平均粒
径は１０μｍである。比較例としては、比較例１が土壌
に３０mmアンダーに破砕した製鋼スラグのみを配合した
場合、比較例２が特公平３−２７５９７号公報に示され
るように製鋼スラグ、石膏、高炉セメントを混合しブレ
ーン値４０００ｍ2 ／ｇに粉砕した固化材を土壌に配合
した場合である。比較例３が特開昭５２−５６７０９号
公報に示されるように、土壌に生石灰、石膏およびハロ
イサイトを配合した場合である。In Examples 1 to 9 of the present invention, the average particle size of the ground granulated blast furnace powder is 10 μm. As a comparative example, when the comparative example 1 mixes only the steelmaking slag crushed to soil with 30 mm under, the comparative example 2 mixes steelmaking slag, gypsum, and blast furnace cement as shown in Japanese Patent Publication No. 3-27597. This is the case where the solidified material pulverized to a Blaine value of 4000 m 2 / g was mixed with the soil. Comparative Example 3 is a case where quicklime, gypsum and halloysite were mixed in the soil as shown in JP-A-52-56709.
【００１４】表２と表３と比較すると、本発明例はいず
れも比較例と同等以上の強度を示した。Comparing Tables 2 and 3, each of the examples of the present invention showed strength equal to or higher than that of the comparative example.
【００１５】[0015]
【発明の効果】本発明により、土壌を安価で確実に硬化
させることができた。従って、高価なセメント、石灰、
アルミナ含有反応性粘土鉱物を使わずに、主に産業廃棄
物を利用して土壌を改質することが可能になった。Industrial Applicability According to the present invention, soil can be hardened inexpensively and reliably. Therefore, expensive cement, lime,
It has become possible to modify the soil mainly using industrial waste without using alumina-containing reactive clay minerals.
フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０９Ｋ 17/08 Ｃ０９Ｋ 17/08 Ｐ Ｅ０２Ｄ 3/12 １０２ Ｅ０２Ｄ 3/12 １０２ // Ｃ０４Ｂ 111:70 Ｃ０９Ｋ 103:00 Continuation of front page (51) Int.Cl. 6 Identification code Office reference number FI Technical display location C09K 17/08 C09K 17/08 P E02D 3/12 102 E02D 3/12 102 // C04B 111: 70 C09K 103: 00
Claims (1)
mmの範囲に入るように破砕した製鋼スラグ及び／または
溶銑予備処理スラグを、配合後の総乾燥重量に対し１５
〜６５重量％、高炉水砕微粉末を０．５〜５重量％、石
膏を０．５〜１０重量％、石炭灰を１〜１０重量％、ア
ルミナ系物質を１〜１０重量％配合して前記土壌を硬化
させることを特徴とする土壌の硬化方法。1. The maximum particle size of the soil containing water is 3 to 50.
The steelmaking slag and / or the hot metal pretreatment slag crushed so as to fall within the range of 15 mm were added to the total dry weight after compounding of 15
~ 65% by weight, ground blast furnace fine powder 0.5-5% by weight, gypsum 0.5-10% by weight, coal ash 1-10% by weight, and alumina-based substance 1-10% by weight. A method for hardening soil, comprising hardening the soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15104396A JPH09100470A (en) | 1995-08-03 | 1996-06-12 | Hardening of soil |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19863995 | 1995-08-03 | ||
| JP7-198639 | 1995-08-03 | ||
| JP15104396A JPH09100470A (en) | 1995-08-03 | 1996-06-12 | Hardening of soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09100470A true JPH09100470A (en) | 1997-04-15 |
Family
ID=26480435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15104396A Pending JPH09100470A (en) | 1995-08-03 | 1996-06-12 | Hardening of soil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09100470A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010035161A (en) * | 2001-01-08 | 2001-05-07 | 배기필 | lung ferric oxide addition soil reclaimation pusan calcicosis manufacture process |
| KR100384640B1 (en) * | 1998-12-11 | 2003-07-16 | 주식회사 포스코 | Manufacturing method of acid soil improver using slag |
| WO2007035101A2 (en) | 2005-09-26 | 2007-03-29 | Stichting Energieonderzoek Centrum Nederland | Composition comprising active charcoal, steel slag and contaminated material and use thereof |
| JP2009051910A (en) * | 2007-08-24 | 2009-03-12 | Tachibana Material Co Ltd | Gypsum-based solidification material and additive for gypsum-based solidification material |
| JP2009121167A (en) * | 2007-11-16 | 2009-06-04 | Nippon Steel Corp | Mud reforming material and method |
| US20120167457A1 (en) * | 2010-09-30 | 2012-07-05 | Philip Harsh | Methods and compositions for drying coal |
| CN103121829A (en) * | 2013-02-06 | 2013-05-29 | 柳州煜华科技有限公司 | Autoclaved sand-lime brick using industrial waste residue as raw material |
| US9004284B2 (en) | 2009-10-01 | 2015-04-14 | Vitrinite Services, Llc | Mineral slurry drying method and system |
| JP2018065131A (en) * | 2015-05-15 | 2018-04-26 | Ｊｆｅスチール株式会社 | Method for modifying dredge soil |
-
1996
- 1996-06-12 JP JP15104396A patent/JPH09100470A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100384640B1 (en) * | 1998-12-11 | 2003-07-16 | 주식회사 포스코 | Manufacturing method of acid soil improver using slag |
| KR20010035161A (en) * | 2001-01-08 | 2001-05-07 | 배기필 | lung ferric oxide addition soil reclaimation pusan calcicosis manufacture process |
| WO2007035101A2 (en) | 2005-09-26 | 2007-03-29 | Stichting Energieonderzoek Centrum Nederland | Composition comprising active charcoal, steel slag and contaminated material and use thereof |
| WO2007035101A3 (en) * | 2005-09-26 | 2007-05-18 | Stichting Energie | Composition comprising active charcoal, steel slag and contaminated material and use thereof |
| JP2009051910A (en) * | 2007-08-24 | 2009-03-12 | Tachibana Material Co Ltd | Gypsum-based solidification material and additive for gypsum-based solidification material |
| JP2009121167A (en) * | 2007-11-16 | 2009-06-04 | Nippon Steel Corp | Mud reforming material and method |
| US9004284B2 (en) | 2009-10-01 | 2015-04-14 | Vitrinite Services, Llc | Mineral slurry drying method and system |
| US9759486B2 (en) | 2009-10-01 | 2017-09-12 | Vitrinite Services, Llc | Mineral slurry drying method and system |
| US8302325B2 (en) * | 2010-09-30 | 2012-11-06 | Ross Technology Corporation | Methods and compositions for drying coal |
| US20120167457A1 (en) * | 2010-09-30 | 2012-07-05 | Philip Harsh | Methods and compositions for drying coal |
| CN103121829A (en) * | 2013-02-06 | 2013-05-29 | 柳州煜华科技有限公司 | Autoclaved sand-lime brick using industrial waste residue as raw material |
| JP2018065131A (en) * | 2015-05-15 | 2018-04-26 | Ｊｆｅスチール株式会社 | Method for modifying dredge soil |
| JP2020019017A (en) * | 2015-05-15 | 2020-02-06 | Ｊｆｅスチール株式会社 | Method for modifying dredge soil |
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