JPH02141443A - Production of low-strength hydraulic cement - Google Patents

Production of low-strength hydraulic cement

Info

Publication number
JPH02141443A
JPH02141443A JP62243630A JP24363087A JPH02141443A JP H02141443 A JPH02141443 A JP H02141443A JP 62243630 A JP62243630 A JP 62243630A JP 24363087 A JP24363087 A JP 24363087A JP H02141443 A JPH02141443 A JP H02141443A
Authority
JP
Japan
Prior art keywords
powder
fine
added
cement
sludge mud
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
Application number
JP62243630A
Other languages
Japanese (ja)
Other versions
JPH0369855B2 (en
Inventor
Soichiro Saito
斎藤　総一郎
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.)
BUSHIYUU KOGYO KK
Original Assignee
BUSHIYUU KOGYO KK
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 BUSHIYUU KOGYO KK filed Critical BUSHIYUU KOGYO KK
Priority to JP62243630A priority Critical patent/JPH02141443A/en
Publication of JPH02141443A publication Critical patent/JPH02141443A/en
Publication of JPH0369855B2 publication Critical patent/JPH0369855B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding

Landscapes

  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Treatment Of Sludge (AREA)

Abstract

PURPOSE:To effectively utilize waste so as to obtain the low-strength hydraulic cement by adding calcium carbonate stone powder, slaked lime and dehydrating agent to sewer sludge mud water, then calcining the same and mixing gypsum and fine ore slag powder therewith. CONSTITUTION:The calcium carbonate stone powder and the slaked lime are added to and mixed with the sludge mud water and the dehydrating agent (e.g., ferric chloride) is added thereto and is dried; thereafter, the sludge mud water are calcined by an electric furnace to form the fine calcined ash powder. The fine slag powder which is added with the gypsum and is not incinerated is mixed with the above-mentioned fine incineration powder to form the desired low-strength hydraulic cement. The above-mentioned cement is the regenerated material obtd. from a large volume of the sewer sludge mud to be discarded and this method has the advantage in that the incineration additives of the cost lower than theretofore are utilized. The above-mentioned cement can be supplied widely in a large volume as a reforming and hardening material for soft soil and a reinforcing assistant material for road bed materials of passages in civil engineering and construction works.

Description

【発明の詳細な説明】 （イ）産業上の利用分野 ド水汚泥土焼却灰をセメント化する方法である。[Detailed description of the invention] (b) Industrial application field This is a method of turning water, sludge, soil and incineration ash into cement.

（ロ）従来の技術 従来、ド水迫の終末処理場において大意にて米た。(b) Conventional technology Previously, rice was harvested at the Domizusako final treatment plant.

（ハ）発明が解決しようとする問題点 上記の焼却添加剤である消石灰はコストが高くついた。(c) Problems that the invention attempts to solve Slaked lime, the above-mentioned incineration additive, was expensive.

循って上記の溌葉される大意の汚泥土を有益に活用し且
つ貌却添〃ｌ剤のコストヲ低下させ、土木工事に利用す
る吻質″ｆ：提供しようとするものである。The purpose is to make effective use of the sludge soil that is circulated and to reduce the cost of additives, and to provide sludge material for use in civil engineering works.

（ニ）問題点を解決するための手段 そこで製鉄に際し生ずる残序鉱物即ち鉱杵（スラブ）は
、これにアルカリ又は硫酸塩類を添加すると、水中にお
い″ても硬化する所謂水硬性を有する。(d) Means for solving the problem The residual minerals, ie, slabs, produced during iron manufacturing have so-called hydraulic properties that harden even in water when alkali or sulfates are added to them.

また上記の汚泥焼却灰は、一般にＰ、Ｈ，８〜９の弱ア
ルカリであるから、これに砿寺を添加すれば水硬性が得
られることが判明した。Moreover, since the above-mentioned sludge incineration ash is generally a weak alkali with P, H, 8 to 9, it was found that hydraulic properties could be obtained by adding Suidera to it.

従って酸化カルシウム分を多く含んだ鉱型または石紛を
汚泥土平の粘土質分に添加すｆば、普通セメントの性分
に近い物質が得られる。Therefore, if mineral mold or stone powder containing a large amount of calcium oxide is added to the clayey content of sludge soil, a substance with properties close to that of ordinary cement can be obtained.

シ☆ム石秒とを選択した。I chose Shim Seki Second.

よって上記の廃棄される汚泥土から有益な再生物質どし
て水硬性低強度セメントを製造することができる。Therefore, hydraulic low-strength cement can be produced from the waste sludge as a useful recycled material.

（ホ）作用 本願の水硬性低強度セメントに対し蒸留水ａＳ％を添加
し、軟線状ｓｔ−作出させた型枠に流入して評時間空中
に載置した後、２ｔ’ＣＶに入れて養生した後、その圧
縮強度を瀦定した結果下記の通シである。(e) Function Add distilled water aS% to the hydraulic low strength cement of the present application, flow it into a formwork made of soft wire st- and place it in the air for a certain period of time, then put it in a 2t'CV and cure it. After that, the compressive strength was determined and the results are as follows.

１週間後　　ｌ参勤／− １週間後　　弘２助／− に週間後　　５０縁／− （へ）　実施例 炭酸カルシウム石粉／　〜＋ｇ及び消石灰Ｕｇｋ汚泥上
水１ｏｏｃｔ：＜実質汚泥量、２ｇ）に谷添ツノＩ混合
し、これに脱水割として塩化第二ａｊｍｇ全添加し脱水
して乾燥させた後、電気微吟末（０，０７弘ｍｍ以下の
粒径）の７０〜３０％を上記の焼却灰微玲末に混合して
、水硬性低強度セメントを生成した。1 week later l Sankin/- 1 week later Hiro 2 Suke/- Weeks later 50 edges/- (to) Example calcium carbonate stone powder/~+g and slaked lime Ugk sludge tap water 10oct:<actual sludge amount, 2g) to trough Added Tsuno I is mixed, all ajmg of chloride is added as a dehydration ratio, and after dehydration and drying, 70 to 30% of the electric fine powder (particle size of 0.07 hiromm or less) is incinerated as described above. It was mixed with ashweiling powder to produce hydraulic low strength cement.

（ホ）発明の効果 本願の水硬性低強度セメントは、廃棄される大量の下水
汚泥土よシ得られる画期的な再生物質であって、然も従
来よりも低コスＦの焼却添加材を利用する長所がある。(e) Effects of the invention The hydraulic low strength cement of the present application is an innovative recycled material obtained from a large amount of discarded sewage sludge soil, and it also uses incineration additives with a lower cost F than conventional ones. There are advantages to using it.

本願のセメントは軟質土壌の改良硬化材として、また道
路路盤材の強化補助材料として広く土木工事に大量に供
給することができる。The cement of the present application can be supplied in large quantities to a wide range of civil engineering works as an improvement hardening material for soft soil and as an auxiliary material for reinforcing road base materials.

以　　　上 特許出願代理人 ６３灯　　　矢　　代　　　　　操 灰微りを生成した。that's all patent application agent 63 lights, arrows, operations It produced a bit of ash.

Claims (1)

【特許請求の範囲】[Claims] 炭酸カルシウム石粉及び消石灰を下水汚泥土木に各添加
混合し、これに脱水剤を添加し脱水して乾燥させた後、
電気炉で焼成して焼却灰微粉末を生成し、これに石膏を
添加した鉱滓微粉末を混合して水硬性低強度セメントを
製造する方法。After adding and mixing calcium carbonate stone powder and slaked lime to sewage sludge civil engineering, adding a dehydrating agent to this and dewatering and drying,
A method of manufacturing hydraulic low-strength cement by firing in an electric furnace to produce fine incineration ash powder, and mixing this with fine slag powder to which gypsum has been added.
JP62243630A 1987-09-30 1987-09-30 Production of low-strength hydraulic cement Granted JPH02141443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62243630A JPH02141443A (en) 1987-09-30 1987-09-30 Production of low-strength hydraulic cement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62243630A JPH02141443A (en) 1987-09-30 1987-09-30 Production of low-strength hydraulic cement

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP58141935A Division JPS6033237A (en) 1983-08-04 1983-08-04 Use of sewage sludge

Publications (2)

Publication Number Publication Date
JPH02141443A true JPH02141443A (en) 1990-05-30
JPH0369855B2 JPH0369855B2 (en) 1991-11-05

Family

ID=17106680

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62243630A Granted JPH02141443A (en) 1987-09-30 1987-09-30 Production of low-strength hydraulic cement

Country Status (1)

Country Link
JP (1) JPH02141443A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110330275A (en) * 2019-07-03 2019-10-15 乐山市瑞祯建材有限公司 It is a kind of using industrial residue industrial silt be raw material distribution

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102674781A (en) * 2012-05-18 2012-09-19 武汉钢铁(集团)公司 Heat-stewed steel slag building construction dry powder and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110330275A (en) * 2019-07-03 2019-10-15 乐山市瑞祯建材有限公司 It is a kind of using industrial residue industrial silt be raw material distribution

Also Published As

Publication number Publication date
JPH0369855B2 (en) 1991-11-05

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