JPH10225669A - Low alkali solidifying material - Google Patents

Low alkali solidifying material

Info

Publication number
JPH10225669A
JPH10225669A JP4458697A JP4458697A JPH10225669A JP H10225669 A JPH10225669 A JP H10225669A JP 4458697 A JP4458697 A JP 4458697A JP 4458697 A JP4458697 A JP 4458697A JP H10225669 A JPH10225669 A JP H10225669A
Authority
JP
Japan
Prior art keywords
cement
fly ash
slag
slag powder
low alkali
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
Application number
JP4458697A
Other languages
Japanese (ja)
Inventor
Takeaki Ookami
剛章 大神
Katsushi Ono
勝史 小野
Satoru Fujii
悟 藤井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chichibu Onoda Cement Corp
Original Assignee
Chichibu Onoda Cement Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chichibu Onoda Cement Corp filed Critical Chichibu Onoda Cement Corp
Priority to JP4458697A priority Critical patent/JPH10225669A/en
Publication of JPH10225669A publication Critical patent/JPH10225669A/en
Pending legal-status Critical Current

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
    • 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
    • C04B2111/00767—Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes
    • 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)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Processing Of Solid Wastes (AREA)
  • Treatment Of Sludge (AREA)

Abstract

PROBLEM TO BE SOLVED: To effectively utilize a large quantity of fly ash and molten slag to restrain the quantity of cement used by making contain cement, fly ash and slag powder to prepare low alkali solidifying material for subjecting to solidifying treatment sludge or the like generated in civil work or dredge work. SOLUTION: This low alkali solidifying material is that which contains cement, fly ash and slag powder, and in order to decrease an elution pH value immediately after mixing with soft mud, the quantity of the cement is made small, for example, the quantity of the cement is within a range of 15-30 pts.wt., and mixing is performed in the ratio of 40-60 pts.wt. fly ash to 20-35 pts.wt. slag powder. As the cement, various kinds of Portland cement such as high- early-strength and moderate-heat Portland cement are used. The high-early- strength Portland cement excels in providing strength and is suitably used. As the slag powder, molten slag powder made using various kinds of waste such as blast furnace slag, trash incineration products an industrial waste as raw materials is suitably used.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】この発明は、低アルカリ固化
材、特に土木工事や浚渫工事で発生する汚泥、軟弱地
盤、下水処理汚泥、その他各種の産業廃棄物として排出
される廃泥等を固化処理するための低アルカリ固化材に
関する。BACKGROUND OF THE INVENTION The present invention relates to a solidification treatment of low alkali solidification materials, in particular, sludge generated in civil engineering works and dredging works, soft ground, sewage treatment sludge, and other wastes discharged as various industrial wastes. To a low alkali solidification material for performing

【０００２】[0002]

【従来の技術】土木工事や浚渫工事で発生する汚泥、軟
弱地盤、下水処理汚泥、その他各種の産業廃棄物として
排出される廃泥等（以下、軟弱泥という）の処理方法と
して、セメント、あるいは、セメントの一部を高炉スラ
グと代替したいわゆるセメント系の固化材が用いられて
いる。これらのセメント系固化材は、強度発現性に優れ
るものの、水和反応により生成した水酸化カルシウムが
溶解するため、軟弱泥との混合直後の溶出ｐＨ値が高い
欠点がある。溶出ｐＨ値は、大量の空気と接触させるこ
となどにより低減することができるが、長期間と広い空
間を必要とし、低アルカリ固化材の出現が望まれる。2. Description of the Related Art As a method for treating sludge, soft ground, sewage sludge, and other sludge discharged as various industrial wastes (hereinafter referred to as soft sludge) generated in civil engineering work or dredging work, cement or A so-called cement-based solidifying material in which part of cement is replaced with blast furnace slag is used. Although these cement-based solidification materials are excellent in strength development, calcium hydroxide generated by a hydration reaction dissolves, and thus has a drawback that the pH eluted immediately after mixing with soft mud is high. The elution pH value can be reduced by, for example, contacting with a large amount of air, but requires a long period and a large space, and the appearance of a low alkali solidification material is desired.

【０００３】一方、火力発電所の微粉炭燃焼ボイラーか
ら副産品として大量に産出されるフライアッシュは、一
部がフライアッシュセメント、グラウト材等に用いられ
ているものの、フライアッシュの品質のバラツキ問題等
により、大部分が埋め立てに廃棄処理されており、さら
に有効利用の拡大が期待される。On the other hand, fly ash produced in large quantities as a by-product from pulverized coal combustion boilers in thermal power plants is partially used for fly ash cement, grout material, etc. As a result, most of them are disposed of in landfills, and further expansion of effective use is expected.

【０００４】また、下水汚泥や都市ごみ等をはじめとす
る各種廃棄物の処理は、その最終処分場の確保等におい
て種々の問題があり、下水汚泥焼却灰や都市ごみ焼却灰
を、さらに減容化処理して溶融スラグとすることが行わ
れるようになっている。しかし、溶融スラグの有効利用
に関しては、ブロックの骨材やタイル、煉瓦等の原料と
して利用され始めているものの、その使用量は微々たる
ものであり、技術的、価格的な制限、流通の問題等か
ら、未だに積極的に有効活用されている段階ではなく、
その処理に悩んでいるのが実状である。The treatment of various wastes such as sewage sludge and municipal solid waste has various problems in securing a final disposal site, etc., and the volume of sewage sludge incineration ash and municipal incineration ash is further reduced. The slag is converted into a molten slag. However, with regard to the effective use of molten slag, although it has begun to be used as a raw material for aggregates, tiles, bricks, etc. of blocks, the amount used is insignificant, and technical, price restrictions, distribution problems, etc. From the stage where it is still actively being used effectively,
The reality is that we are worried about that process.

【０００５】[0005]

【発明が解決しようとする課題】前述したようにセメン
ト系固化材は、軟弱泥との混合直後の溶出ｐＨ値が高い
欠点があるが、この発明は、セメントにフライアッシュ
や溶融スラグを組み合わせることにより、セメントの使
用量を抑制して、軟弱泥との混合直後の溶出ｐＨ値を低
減させると共に、大量のフライアッシュや溶融スラグの
有効活用を図ることができる低アルカリ固化材を提供す
ることを目的とする。As described above, the cement-based solidification material has a drawback that the pH eluted immediately after mixing with soft mud is high, but the present invention relates to the combination of fly ash and molten slag with cement. Thus, it is possible to provide a low alkali solidifying material capable of suppressing the amount of cement used, reducing the elution pH value immediately after mixing with soft mud, and effectively utilizing a large amount of fly ash and molten slag. Aim.

【０００６】[0006]

【課題を解決するための手段】上述の目的を達成するた
めに、この発明の低アルカリ固化材によれば、セメント
と、フライアッシュと、スラグ粉末を含んでなること
（請求項１）、セメント１５〜３０重量部、フライアッ
シュ４０〜６０重量部、スラグ粉末２０〜３５重量部の
割合で含んでなること（請求項２）、セメントが早強ポ
ルトランドセメントであること（請求項３）、スラグが
高炉スラグであること（請求項４）、スラグが下水汚泥
焼却物及び／又は都市ごみ焼却物の溶融スラグであるこ
と（請求項５）、溶融スラグのＣａＯ成分が３７重量％
以下であり、ＣａＯ／ＳｉＯ2 比が１．３以下、好まし
くは１．０以下であること（請求項６）、を特徴とす
る。以下、この発明を詳しく説明する。According to a first aspect of the present invention, there is provided a low-alkali solidified material comprising cement, fly ash, and slag powder. 15 to 30 parts by weight, 40 to 60 parts by weight of fly ash, 20 to 35 parts by weight of slag powder (Claim 2), the cement is Portland cement with high strength (Claim 3), slag Is blast furnace slag (Claim 4), the slag is molten slag of incinerated sewage sludge and / or municipal waste (Claim 5), and the CaO component of the molten slag is 37% by weight.
Or less, and the CaO / SiO 2 ratio is 1.3 or less, preferably 1.0 or less (claim 6). Hereinafter, the present invention will be described in detail.

【０００７】[0007]

【発明の実施の形態】この発明の低アルカリ固化材は、
セメント、フライアッシュ、及びスラグ粉末を含むもの
であるが、軟弱泥との混合直後の溶出ｐＨ値を低減させ
るために、セメント量は極力少なくする。具体的には、
セメント量を１５〜３０重量部の範囲とし、フライアッ
シュを４０〜６０重量部、スラグ粉末を２０〜３５重量
部の割合で混合することが望ましい。セメント量が１５
重量部を下回ると、短期強度の低下が大きく固化性能が
悪くなり、また、３０重量部を越えると、溶出ｐＨ値の
低減効果が少ない。セメントとしては、普通、早強、中
庸熱、白色等の、各種ポルトランドセメントが使用でき
るほか、これらの混合セメントであっても良い。中でも
早強ポルトランドセメントは、強度発現性の点で優れ、
好適に使用することができる。BEST MODE FOR CARRYING OUT THE INVENTION
Although it contains cement, fly ash, and slag powder, the amount of cement is reduced as much as possible to reduce the dissolution pH value immediately after mixing with soft mud. In particular,
It is desirable that the cement amount is in the range of 15 to 30 parts by weight, fly ash is mixed in the ratio of 40 to 60 parts by weight, and slag powder is mixed in the ratio of 20 to 35 parts by weight. 15 cement
If the amount is less than 10 parts by weight, the short-term strength is greatly reduced and the solidification performance is deteriorated. If the amount exceeds 30 parts by weight, the effect of reducing the elution pH value is small. As the cement, various kinds of Portland cements such as ordinary, high-strength, moderate heat, and white can be used, and mixed cements thereof may be used. Among them, early strength Portland cement is excellent in terms of strength development,
It can be suitably used.

【０００８】次に、フライアッシュは、ＪＩＳで規定さ
れるフライアッシュは無論、通常原粉と称されるフライ
アッシュが使用でき、これらフライアッシュを分級等に
より粒度を調整したものであっても良い。フライアッシ
ュ量は、４０〜６０重量部の範囲とすることが好まし
く、フライアッシュが４０重量部を下回ると、溶出ｐＨ
値の低減効果が少なく、６０重量部を越えると短期強度
の発現性が悪い。また、フライアッシュの混合は、ポゾ
ラン作用による長期強度の増進効果のほか、フライアッ
シュは、球形粒の含有割合が高く、作業性の良い固化材
とすることができる。Next, as for fly ash, fly ash specified by JIS can of course be used, and fly ash usually called raw powder can be used, and the particle size of these fly ash may be adjusted by classification or the like. . The amount of fly ash is preferably in the range of 40 to 60 parts by weight.
The effect of reducing the value is small, and if it exceeds 60 parts by weight, the short-term strength development is poor. In addition, the mixing of fly ash has the effect of increasing the long-term strength due to the pozzolanic effect, and fly ash has a high content of spherical particles and can be a solidified material with good workability.

【０００９】スラグ粉末としては、高炉スラグのほか、
下水汚泥焼却物、ごみ焼却物及び産業廃棄物等の種々の
廃棄物を原料とした溶融スラグ粉末が好適に使用でき
る。特に下水汚泥焼却物及び／又は都市ごみ焼却物の溶
融スラグは、Ｎａ2 ＯやＫ2 Ｏ等のアルカリ含有量が高
いにも拘らず、高炉スラグのＣａＯ成分が４０〜４５重
量％前後、ＣａＯ／ＳｉＯ2 比が１．４前後であるのに
対し、下水汚泥焼却物及び／又は都市ごみ焼却物の溶融
スラグにおいては、ＣａＯ成分が８〜３７重量％以下で
あり、ＣａＯ／ＳｉＯ2 比が１．３以下、通常は１．０
以下であり、高炉スラグと同程度の溶出ｐＨ値の低減効
果を期待できる。As slag powder, besides blast furnace slag,
Molten slag powder from various wastes such as sewage sludge incineration, refuse incineration, and industrial waste can be suitably used. In particular molten slag sewage sludge incinerated and / or urban waste incinerated is, Na 2 O and K 2 O in spite high alkali content, such as, CaO components of blast furnace slag before and after 40 to 45 wt%, CaO While the / SiO 2 ratio is around 1.4, the molten slag of the incinerated sewage sludge and / or the incinerated municipal waste has a CaO component of 8 to 37% by weight or less and a CaO / SiO 2 ratio of 1.3 or less, usually 1.0
This is the following, and the effect of reducing the dissolution pH value to the same extent as that of blast furnace slag can be expected.

【００１０】しかも、下水汚泥焼却物及び／又は都市ご
み焼却物の溶融スラグは、前述したように低ＣａＯ成分
量でありながら、高炉スラグにはほとんど含まれない、
或いは極めて少ない、酸化鉄、リン成分、酸化チタン、
酸化マンガン、酸化マグネシウム、その他ハロゲン成分
やアルカリ成分等を含み、これら成分の存在と混合され
るセメントのアルカリ刺激作用により、高炉スラグと同
等程度の優れた強度発現性があり、従来、活用先がほと
んど無い溶融スラグを大量に有効活用する上からも望ま
しいものである。このような溶融スラグ粉末は、下水汚
泥焼却物及び／又は都市ごみ焼却物を原料として、必要
に応じて粘土、石灰石等で成分調整し、高温で溶融・急
冷し、ブレーン比表面積３５００cm2 ／ｇ以上に粉砕し
たものが好適に使用できる。[0010] In addition, the molten slag of the incineration of sewage sludge and / or incineration of municipal solid waste is hardly contained in the blast furnace slag, although it has a low CaO content as described above.
Or extremely small, iron oxide, phosphorus component, titanium oxide,
It contains manganese oxide, magnesium oxide, other halogen components and alkali components, etc., and due to the alkali stimulating action of the cement mixed with the presence of these components, it has excellent strength expression similar to that of blast furnace slag. This is desirable from the viewpoint of effectively utilizing a large amount of almost no molten slag. Such a molten slag powder is prepared from incinerated sewage sludge and / or incinerated municipal waste, and if necessary, is adjusted with clay, limestone, etc., melted and quenched at a high temperature, and has a Blaine specific surface area of 3500 cm 2 / g. Those pulverized as described above can be suitably used.

【００１１】高炉スラグや下水汚泥焼却物及び／又は都
市ごみ焼却物の溶融スラグ粉末の使用量は、これが２０
重量部を下回ると溶出ｐＨ値の低減効果が少なく、ま
た、３５重量部を越えると短期強度の発現性が悪くな
り、２０〜３５重量部の範囲とすることが好ましい。The amount of molten slag powder used for blast furnace slag, incinerated sewage sludge and / or incinerated municipal waste is 20%.
If the amount is less than 35 parts by weight, the effect of lowering the elution pH value is small. If the amount is more than 35 parts by weight, the short-term strength becomes poor, and the amount is preferably in the range of 20 to 35 parts by weight.

【００１２】以上説明したように、セメント、フライア
ッシュ、及びスラグ粉末を好適に廃合したこの発明の低
アルカリ固化材は、土木工事や浚渫工事で発生する汚
泥、軟弱地盤、下水処理汚泥、その他各種の産業廃棄物
として排出される廃泥等に、粉体もしくはスラリーの状
態で混合、固化して安定化処理し、そのまま地盤改良土
することができるほか、改良泥は、運搬も容易で埋め戻
し材、路盤材、ドレーン材等の各種土木建設用資材とし
て有効活用できる。以下、実施例によりこの発明をさら
に説明する。As described above, the low-alkali solidified material of the present invention in which cement, fly ash, and slag powder are suitably discarded can be used for sludge, soft ground, sewage sludge, etc. generated in civil engineering work or dredging work. In the form of powder or slurry, it can be mixed and solidified with waste mud, etc., which is discharged as industrial waste, stabilized and treated as ground improvement soil, and the improved mud can be easily transported and backfilled. It can be effectively used as various civil engineering construction materials such as materials, roadbed materials and drain materials. Hereinafter, the present invention will be further described with reference to examples.

【００１３】[0013]

【実施例】早強ポルトランドセメント（秩父小野田製）
と、海外炭使用の火力発電所から排出されたフライアッ
シュ（ブレーン比表面積３２００ｃｍ2 ／ｇ）と、表１
に示す３種類のスラグ粉末を、表２に示す各種の配合割
合で混合して固化材とした。この固化材をチタン廃泥
（含水比４３．６重量％）に対し、１０重量％添加、混
合し、約１０ｍｍ径と５ｍｍ径以下の２種類の造粒物を
得た。次いで造粒物の溶出ｐＨ試験を行った。溶出ｐＨ
試験は、チタン廃泥との混合直後から、造粒物を２５
℃、湿度６０％の恒温室で１〜１０日間、開放状態及び
密封状態で放置後、造粒物２０ｇ（１０ｍｍ径１個と残
り５ｍｍ径以下）を２００ｃｃの水中で軽く攪拌して１
時間静置後、ｐＨメータで溶出ｐＨ値を測定した。ま
た、同時に１０ｍｍ径造粒物の水中での崩壊状況を観察
した。結果を表２に示す。[Example] Early strength Portland cement (made by Chichibu Onoda)
And fly ash (Brain specific surface area: 3200 cm 2 / g) discharged from thermal power plants using overseas coal
The three types of slag powder shown in Table 2 were mixed at various mixing ratios shown in Table 2 to obtain a solidified material. The solidified material was added to and mixed with 10% by weight of titanium waste mud (water content ratio: 43.6% by weight) to obtain two types of granules having a diameter of about 10 mm and a diameter of 5 mm or less. Next, the dissolution pH test of the granulated product was performed. Elution pH
The test was carried out immediately after mixing with titanium waste mud.
After leaving it in an open state and a sealed state for 1 to 10 days in a constant temperature chamber at 60 ° C. and a humidity of 60%, 20 g of the granulated product (one 10 mm diameter and the remaining 5 mm diameter or less) was gently stirred in 200 cc of water for 1 day.
After standing for a period of time, the elution pH value was measured with a pH meter. At the same time, the state of collapse of the 10 mm-diameter granulated product in water was observed. Table 2 shows the results.

【００１４】[0014]

【表１】 [Table 1]

【００１５】[0015]

【表２】 [Table 2]

【００１６】表２に示すように、セメントと、フライア
ッシュと、スラグ粉末を組み合わせた固化材は、造粒直
後から溶出ｐＨ値を効果的に低減することができる。し
かしながら、セメント使用量の抑制に伴って、特に造粒
物を解放状態で放置したものは、短期強度の低下によ
り、水中で崩壊しやすくなる。従って、溶出ｐＨ値の低
減効果と短期強度の優れたものにするためには、セメン
ト１５〜３０重量部、フライアッシュ４０〜６０重量
部、スラグ粉末２０〜３５重量部の割合とすることが好
ましい。これらの造粒物は短期強度にも優れ、水中での
崩壊のない安定したものであり、埋め戻し材等として十
分使用できるものであった。As shown in Table 2, the solidified material obtained by combining cement, fly ash, and slag powder can effectively reduce the dissolution pH value immediately after granulation. However, with the suppression of the amount of cement used, especially those in which the granulated material is left in an open state are likely to disintegrate in water due to a decrease in short-term strength. Therefore, in order to make the effect of reducing the dissolution pH value and the short term strength excellent, it is preferable to set the proportion of 15 to 30 parts by weight of cement, 40 to 60 parts by weight of fly ash, and 20 to 35 parts by weight of slag powder. . These granulated products were also excellent in short-term strength, were stable without disintegration in water, and were sufficiently usable as backfill materials and the like.

【００１７】[0017]

【発明の効果】以上説明したように、この発明は、フラ
イアッシュやスラグ粉末を有効に活用し、低アルカリ固
化材とするものであり、土木工事や浚渫工事で発生する
汚泥、軟弱地盤、下水処理汚泥、その他各種の産業廃棄
物として排出される廃泥等を安定的に固化処理すること
ができる。As described above, the present invention makes effective use of fly ash and slag powder to produce a low alkali solidified material. Sludge, soft ground, sewage generated in civil engineering work and dredging work, etc. It is possible to stably solidify treated sludge and other waste sludge discharged as various industrial wastes.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ //(Ｃ０４Ｂ 28/02 18:14 18:04 18:08） Ｃ０９Ｋ 103:00 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI // (C04B 28/02 18:14 18:04 18:08) C09K 103: 00

Claims (6)

【特許請求の範囲】[Claims] 【請求項１】 セメントと、フライアッシュと、スラグ
粉末を含んでなることを特徴とする低アルカリ固化材。1. A low alkali solidification material comprising cement, fly ash, and slag powder. 【請求項２】 セメント１５〜３０重量部、フライアッ
シュ４０〜６０重量部、スラグ粉末２０〜３５重量部の
割合で含んでなることを特徴とする請求項１記載の低ア
ルカリ固化材。2. The low alkali solidification material according to claim 1, comprising 15 to 30 parts by weight of cement, 40 to 60 parts by weight of fly ash, and 20 to 35 parts by weight of slag powder. 【請求項３】 セメントが早強ポルトランドセメントで
あることを特徴とする請求項１若しくは２記載の低アル
カリ固化材。3. The low alkali solidifying material according to claim 1, wherein the cement is an early-strength Portland cement. 【請求項４】 スラグが高炉スラグであることを特徴と
する請求項１〜３いずれか記載の低アルカリ固化材。4. The low alkali solidification material according to claim 1, wherein the slag is blast furnace slag. 【請求項５】 スラグが下水汚泥焼却物及び／又は都市
ごみ焼却物の溶融スラグであることを特徴とする請求項
１〜３いずれか記載の低アルカリ固化材。5. The low alkali solidification material according to claim 1, wherein the slag is a molten slag of incinerated sewage sludge and / or incinerated municipal waste. 【請求項６】 溶融スラグのＣａＯ成分が３７重量％以
下であり、ＣａＯ／ＳｉＯ2 比が１．３以下、好ましく
は１．０以下であることを特徴とする請求項５記載の低
アルカリ固化材。6. The low alkali solidification according to claim 5, wherein the CaO component of the molten slag is 37% by weight or less, and the CaO / SiO 2 ratio is 1.3 or less, preferably 1.0 or less. Wood.
JP4458697A 1997-02-13 1997-02-13 Low alkali solidifying material Pending JPH10225669A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4458697A JPH10225669A (en) 1997-02-13 1997-02-13 Low alkali solidifying material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4458697A JPH10225669A (en) 1997-02-13 1997-02-13 Low alkali solidifying material

Publications (1)

Publication Number Publication Date
JPH10225669A true JPH10225669A (en) 1998-08-25

Family

ID=12695599

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4458697A Pending JPH10225669A (en) 1997-02-13 1997-02-13 Low alkali solidifying material

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Country Link
JP (1) JPH10225669A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002059148A (en) * 2000-08-21 2002-02-26 Taiheiyo Cement Corp Coal ash treatment/distribution combination system
JP2002255616A (en) * 2001-02-27 2002-09-11 Denki Kagaku Kogyo Kk Cement composition
JP2006168997A (en) * 2003-11-20 2006-06-29 Mitani Sekisan Co Ltd High-strength concrete-molded body and material to be charged in mold
WO2007013465A1 (en) * 2005-07-29 2007-02-01 The Chugoku Electric Power Co., Inc. Method of the solidification of soft soil
KR100815844B1 (en) * 2001-12-22 2008-03-21 주식회사 포스코 A treatment method of dredging sediment
JP2014009487A (en) * 2012-06-29 2014-01-20 Tokuyama Corp Fluidized soil
CN111548068A (en) * 2020-05-18 2020-08-18 福州大学 Single component recycled polymer cement concrete

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002059148A (en) * 2000-08-21 2002-02-26 Taiheiyo Cement Corp Coal ash treatment/distribution combination system
JP2002255616A (en) * 2001-02-27 2002-09-11 Denki Kagaku Kogyo Kk Cement composition
KR100815844B1 (en) * 2001-12-22 2008-03-21 주식회사 포스코 A treatment method of dredging sediment
JP2006168997A (en) * 2003-11-20 2006-06-29 Mitani Sekisan Co Ltd High-strength concrete-molded body and material to be charged in mold
WO2007013465A1 (en) * 2005-07-29 2007-02-01 The Chugoku Electric Power Co., Inc. Method of the solidification of soft soil
JP4869233B2 (en) * 2005-07-29 2012-02-08 中国電力株式会社 Solidification method for soft soil
JP2014009487A (en) * 2012-06-29 2014-01-20 Tokuyama Corp Fluidized soil
CN111548068A (en) * 2020-05-18 2020-08-18 福州大学 Single component recycled polymer cement concrete

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