JP3517824B2 - Expandable hydraulic material - Google Patents
Expandable hydraulic materialInfo
- Publication number
- JP3517824B2 JP3517824B2 JP07490398A JP7490398A JP3517824B2 JP 3517824 B2 JP3517824 B2 JP 3517824B2 JP 07490398 A JP07490398 A JP 07490398A JP 7490398 A JP7490398 A JP 7490398A JP 3517824 B2 JP3517824 B2 JP 3517824B2
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic material
- calcium oxide
- expansive
- fly ash
- calcium
- 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.)
- Expired - Fee Related
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
- C04B28/02—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 hydraulic cements other than calcium sulfates
-
- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/008—Cement and like inorganic materials added as expanding or shrinkage compensating ingredients in mortar or concrete compositions, the expansion being the result of a recrystallisation
-
- 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)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、膨張性水硬材料に
関する。TECHNICAL FIELD The present invention relates to an expandable hydraulic material.
【０００２】[0002]
【従来の技術】膨張コンクリート、モルタルあるいはセ
メントペーストの製造に用いる混和材として、膨張材を
用いることが知られている。膨張材としては、酸化カル
シウム、カルシウムサルホアルミネート、アウインなど
を主成分としたものが知られている。2. Description of the Related Art It is known to use an expansive material as an admixture used in the production of expanded concrete, mortar or cement paste. As the expansive material, those containing calcium oxide, calcium sulfaluminate, hain, etc. as main components are known.
【０００３】[0003]
【本発明が解決しようとする課題】主成分として酸化カ
ルシウム、カルシウムサルホアルミネート、アウインな
どを用いた従来の水硬材料は、非常に高価である。The conventional hydraulic material using calcium oxide, calcium sulfaluminate, hain, etc. as the main components is very expensive.
【０００４】本発明は以上の問題点を解決するためにな
されたもので、廃棄処分されていた酸化カルシウム含有
量の多いフライアッシュ（石炭灰）を有効利用し、膨張
力および経済性に優れた、膨張性水硬材料を提供するこ
とにある。The present invention has been made to solve the above problems, and effectively utilizes the fly ash (coal ash) having a large content of calcium oxide, which has been disposed of, and is excellent in expansive force and economical efficiency. , To provide an expandable hydraulic material.
【０００５】[0005]
【課題を解決するための手段】本発明は、コンクリー
ト、モルタルあるいはセメントペーストに、酸化カルシ
ウムの含有量の多いフライアッシュを混和して成り、前
記フライアッシュ中の酸化カルシウムを水和反応させ、
水酸化カルシウムの結晶を生成し、この結晶の力でコン
クリート、モルタルあるいはセメントペーストを膨張さ
せることを特徴とする、膨張性水硬材料である。また本
発明は、前述した膨張性水硬材料に、酸化カルシウム、
カルシウムサルホアルミネートあるいはアウインを主成
分とした水硬材料を混和したことを特徴とする、膨張性
水硬材料である。Means for Solving the Problems The present invention comprises concrete, mortar or cement paste mixed with fly ash having a high content of calcium oxide to cause a hydration reaction of calcium oxide in the fly ash,
It is an expansive hydraulic material characterized by producing calcium hydroxide crystals and expanding concrete, mortar or cement paste by the force of the crystals. In addition, the present invention, the expansive hydraulic material described above, calcium oxide ,
An expansive hydraulic material characterized by being mixed with a hydraulic material containing calcium sulfaluminate or hain as a main component.
【０００６】[0006]
【発明の実施の形態１】以下、本発明の膨張性水硬材料
について説明する。BEST MODE FOR CARRYING OUT THE INVENTION The expansive hydraulic material of the present invention will be described below.
【０００７】本発明の膨張性水硬材料は、従来コンクリ
ートの混和材として用いられている酸化カルシウムの含
有量がＪＩＳ規格の許容値内であるフライアッシュ（石
炭灰）よりも、酸化カルシウムの含有量の多い前記規格
を超過したフライアッシュを混和材として用いる。酸化
カルシウム［ＣａＯ］の含有量の多いフライアッシュ
は、セメントに混合し、水［Ｈ2 Ｏ］と混練した場合、
水和反応により水酸化カルシウム［Ｃａ（ＯＨ）2 ］の
結晶を生成し、この結晶の力によりコンクリートあるい
はモルタルを膨張させる。この膨張力を利用するため、
酸化カルシウム含有量が規格の超過したフライアッシュ
をセメントに混和して用いることにより、コンクリート
のひび割れ抑制、充填材の硬化後の一体性確保などを図
ることが可能となる膨脹性水硬材料を得ることができ
る。また本発明の膨張性水硬材料は、その膨張力から静
的破砕材の補助材料として用いることも考えられる。な
お、本発明の膨張性水硬材料を得るために、前記フライ
アッシュに加えて、従来の水硬材料を混合して用いるこ
とも可能である。The expansive hydraulic material of the present invention contains calcium oxide rather than fly ash (coal ash), which has been used as a concrete admixture for concrete and has a calcium oxide content within the allowable value of JIS standard. A large amount of fly ash exceeding the above standard is used as an admixture. Fly ash with a high content of calcium oxide [CaO], when mixed with cement and kneaded with water [H 2 O],
Crystals of calcium hydroxide [Ca (OH) 2 ] are generated by the hydration reaction, and concrete or mortar is expanded by the force of the crystals. In order to utilize this expansion force,
By mixing fly ash whose calcium oxide content exceeds the standard with cement and using it, it is possible to obtain an expansive hydraulic material that can prevent cracking of concrete and ensure integrity after hardening of filler. be able to. Further, the expansive hydraulic material of the present invention may be used as an auxiliary material for a statically crushed material due to its expansive force. In addition to the fly ash, a conventional hydraulic material may be mixed and used in order to obtain the expansive hydraulic material of the present invention.
【０００８】[0008]
【発明の効果】本発明は以上説明したようになるから次
のような効果を得ることができる。
＜イ＞ 産業廃棄物として処分されていた酸化カルシウ
ム含有量の多いフライアッシュ（石炭灰）を有効利用す
ることができる。
＜ロ＞ 酸化カルシウム、カルシウムサルホアルミネー
ト、アウインなどの従来の水硬材料と比較して、非常に
安価であり、経済性が高い。Since the present invention is as described above, the following effects can be obtained. <B> Fly ash (coal ash) having a high calcium oxide content, which has been disposed of as industrial waste, can be effectively used. <B> Compared with conventional hydraulic materials such as calcium oxide, calcium sulfaluminate, and hain, it is extremely inexpensive and highly economical.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大脇 英司 東京都新宿区西新宿一丁目25番１号 大 成建設株式会社内 (56)参考文献 特開 平７−232952（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C04B 2/00 - 32/02 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Eiji Owaki 1-25-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo Within Taisei Corporation (56) Reference JP-A-7-232952 (JP, A) (58) ) Fields surveyed (Int.Cl. 7 , DB name) C04B 2/00-32/02
Claims (2)
ントペーストに、酸化カルシウムの含有量の多いフライ
アッシュを混和して成り、 前記フライアッシュ中の酸化カルシウムを水和反応さ
せ、水酸化カルシウムの結晶を生成し、この結晶の力で
コンクリート、モルタルあるいはセメントペーストを膨
張させることを特徴とする、 膨張性水硬材料。1. A concrete, mortar or cement paste is mixed with fly ash having a high content of calcium oxide, and the calcium oxide in the fly ash is hydrated to produce calcium hydroxide crystals, An expansive hydraulic material characterized by expanding concrete, mortar or cement paste by the force of this crystal.
カルシウム、カルシウムサルホアルミネートあるいはア
ウインを主成分とした水硬材料を混和したことを特徴と
する、膨張性水硬材料。2. An expansive hydraulic material, characterized in that the expansive hydraulic material according to claim 1 is mixed with a hydraulic material containing calcium oxide , calcium sulfaluminate or hain as a main component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07490398A JP3517824B2 (en) | 1998-03-09 | 1998-03-09 | Expandable hydraulic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07490398A JP3517824B2 (en) | 1998-03-09 | 1998-03-09 | Expandable hydraulic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11255552A JPH11255552A (en) | 1999-09-21 |
| JP3517824B2 true JP3517824B2 (en) | 2004-04-12 |
Family
ID=13560824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07490398A Expired - Fee Related JP3517824B2 (en) | 1998-03-09 | 1998-03-09 | Expandable hydraulic material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3517824B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104446117B (en) * | 2014-11-18 | 2016-08-17 | 桂林华越环保科技有限公司 | Cement expansive material |
| US10913885B1 (en) * | 2019-07-18 | 2021-02-09 | Halliburton Energy Services, Inc. | Metal that hydrates in wellbore fluid and creates an expanding cement |
-
1998
- 1998-03-09 JP JP07490398A patent/JP3517824B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11255552A (en) | 1999-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MXPA00007758A (en) | Gypsum-cement system for construction materials. | |
| NO982584D0 (en) | New bonding phase for phosphorus-magnesium cements and their use in the preparation of mortar | |
| KR20020093204A (en) | Solidificator Manufacturing Method with Waste Oyster Shell | |
| JP3608911B2 (en) | Hydraulic composition and mortar or concrete using the same | |
| CN110294610A (en) | A kind of soil body composite curing agent | |
| JP3517824B2 (en) | Expandable hydraulic material | |
| CN112429990A (en) | Inorganic cementing material produced by using solid wastes such as fly ash, mineral powder and desulfurized gypsum | |
| JP3549644B2 (en) | Cement composition | |
| JP3260911B2 (en) | Cement clinker and method for producing the same | |
| JP4112666B2 (en) | Solidified material | |
| JP2001200251A (en) | Grout for producing watertight screen | |
| JP2968868B2 (en) | Cement admixture and cement composition | |
| JP3212870B2 (en) | Cement-based grout material composition | |
| JP2816093B2 (en) | Method for producing coal ash solidified material | |
| JPH10212479A (en) | Solidifying material for soil improvement | |
| JP4584630B2 (en) | Soil improvement material | |
| JP2857511B2 (en) | Concrete composition | |
| JPH0643265B2 (en) | Quick-setting cement composition | |
| JP3525375B2 (en) | Cement additive | |
| KR940021450A (en) | Cement Mortar Cracking Admixture | |
| JP4168111B2 (en) | Lime-based soil solidification material and soil solidification method using the same | |
| CA2298328A1 (en) | Hydrated calcium aluminate based expansive admixture | |
| JPH11278906A (en) | Low segregation cement composition | |
| JP2001152149A (en) | Ground improvement material, composite ground, and process for improving ground | |
| JPH0313182B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20040116 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090206 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090206 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100206 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110206 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110206 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120206 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130206 Year of fee payment: 9 |
|
| LAPS | Cancellation because of no payment of annual fees |