JPH04219185A - Oil absorptive aggregate and production thereof - Google Patents
Oil absorptive aggregate and production thereofInfo
- Publication number
- JPH04219185A JPH04219185A JP2403052A JP40305290A JPH04219185A JP H04219185 A JPH04219185 A JP H04219185A JP 2403052 A JP2403052 A JP 2403052A JP 40305290 A JP40305290 A JP 40305290A JP H04219185 A JPH04219185 A JP H04219185A
- Authority
- JP
- Japan
- Prior art keywords
- zeolite
- oil
- aggregate
- concrete
- waste
- 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.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 30
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000010457 zeolite Substances 0.000 claims abstract description 30
- 239000002699 waste material Substances 0.000 claims abstract description 23
- 239000004567 concrete Substances 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 19
- 239000011230 binding agent Substances 0.000 claims abstract description 12
- 238000002156 mixing Methods 0.000 claims description 13
- 238000005054 agglomeration Methods 0.000 claims description 2
- 230000002776 aggregation Effects 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 14
- 239000010426 asphalt Substances 0.000 abstract description 12
- 239000010881 fly ash Substances 0.000 abstract description 7
- 239000000203 mixture Substances 0.000 abstract description 4
- 239000002440 industrial waste Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000011384 asphalt concrete Substances 0.000 description 11
- 238000005299 abrasion Methods 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009725 powder blending Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- 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
【産業上の利用分野】本発明は、産業廃棄物を再生して
、例えばアスファルト・コンクリート等に配合使用でき
る吸油性骨材及びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil-absorbing aggregate that can be recycled from industrial waste and used in, for example, asphalt or concrete, and a method for producing the same.
【０００２】0002
【従来の技術】コンクリート廃材は、最近の環境破壊問
題重視の観点からこれの有効利用が土木建築業界に待ち
望まれているものである。即ち、新しく土木建築関係の
構造物を建設する場合に、既設の建造物を取り壊した後
に新しく建設するというのが最近の我が国に於ける常法
であり、その際破壊したコンクリート廃材はその近辺の
廃棄場所に投棄処分しているのが現状である。しかし現
状では環境破壊の問題も含めて、その廃棄処分場所が徐
々に無くなりつつあり、その廃棄処分には多額の費用が
必要となっている。BACKGROUND OF THE INVENTION The civil engineering and construction industry has been eagerly awaiting the effective use of concrete waste materials in view of the recent emphasis on environmental destruction. In other words, when constructing a new civil engineering-related structure, it is a common practice in Japan recently to demolish the existing structure and then construct a new one, and the concrete waste materials destroyed at that time are used to build a new structure in the vicinity. The current situation is that they are dumped at disposal sites. However, the current situation is that places to dispose of such waste are gradually disappearing, including the problem of environmental destruction, and a large amount of cost is required for disposal.
【０００３】同様な観点から、大量に発生するフライア
ッシュも同様で、その処理方法として本発明者はそれを
ゼオライト化処理（特開昭６２−２４０１４号）するこ
とを既に提示した。[0003] From a similar point of view, the same applies to fly ash, which is generated in large quantities, and the present inventor has already proposed a method for processing it into zeolite (Japanese Patent Application Laid-open No. 24014/1982).
【０００４】一方、アスファルトは道路舗装用に使用さ
れているが、交通量の激増、或いは重車両数の増加とと
もにアスファルトコンクリートに対する品質は益々厳し
い条件を要求されてきている。例えばアスファルト舗装
は夏期になると、その直射日光により路面温度は７０℃
近くにまで熱せられる。そのためアスファルトが軟化し
、流動性を示すようになる。On the other hand, asphalt is used for road paving, but with the rapid increase in traffic volume and the increase in the number of heavy vehicles, stricter quality conditions are being required for asphalt concrete. For example, in the summer, asphalt pavement can reach a road surface temperature of 70 degrees Celsius due to direct sunlight.
It can be heated up close. As a result, the asphalt softens and becomes fluid.
【０００５】[0005]
【発明が解決しようとする課題】上記したように、アス
ファルトコンクリート路面上を過積載の重車両等が通行
すれば、アスファルトコンクリートは軟化、流動し、路
面の変形が生ずる。この蓄積により発生した轍のために
その寿命は非常に短くなる。このアスファルトコンクリ
ートの軟化、流動はアスファルト中の軽質油分に起因し
ており、これを補足できるならばアスファルトの軟化、
流動は抑制できる。As described above, when an overloaded heavy vehicle or the like passes over an asphalt concrete road surface, the asphalt concrete softens and flows, causing deformation of the road surface. Due to the ruts caused by this accumulation, its lifespan is very short. This softening and fluidity of asphalt concrete is caused by the light oil content in the asphalt, and if this can be supplemented, the softening and fluidity of asphalt,
Flow can be suppressed.
【０００６】一般にアスファルトコンクリートはアスフ
ァルトに各種骨材及びフィラー等を混合、加熱して製造
するが、例えば、骨材の強度を主眼にすると吸油性は殆
ど期待できず、逆に吸油性を主眼にすると骨材の強度、
特に擦り減り性に難点がある。[0006] Generally, asphalt concrete is manufactured by mixing asphalt with various aggregates, fillers, etc., and heating it. However, for example, if the strength of the aggregate is the main focus, little oil absorption can be expected. Then, the strength of the aggregate,
In particular, there is a problem with abrasion resistance.
【０００７】本発明は、上記した大量の廃棄物同志を複
合化し、しかも機能性を有した、即ち吸油性と耐擦り減
り性の両機能を有した物質、吸油性骨材及びその製造方
法を提示するものである。[0007] The present invention combines the above-mentioned large amount of waste materials and creates a substance that has functionality, that is, has both oil-absorbing properties and abrasion resistance, an oil-absorbing aggregate, and a method for producing the same. This is what we present.
【０００８】[0008]
【課題を解決するための手段】本発明は、人工ゼオライ
トとコンクリート廃材の微粉末及び水硬性バインダーと
からなり、その吸油率が３０％以上である吸油性骨材で
あり、人工ゼオライト粉末或いはゼオライトケーキ２０
〜４０％、コンクリート廃材の微粉末４０〜６０％及び
残部に水硬性バインダーを配合・混合し、塊成化後養生
し、乾燥することを特徴とする吸油性骨材の製造方法で
ある。[Means for Solving the Problems] The present invention is an oil-absorbing aggregate consisting of artificial zeolite, fine powder of concrete waste, and a hydraulic binder, and having an oil absorption rate of 30% or more. cake 20
40%, 40 to 60% fine powder of concrete waste, and the remainder a hydraulic binder, which is then agglomerated, cured, and dried.
【０００９】[0009]
【作用】人工ゼオライトとコンクリート廃材の微粉末及
び水硬性バインダーとからなる吸油性骨材は、その吸油
性はゼオライトによってもたらされ、強度、特に擦り減
り性はコンクリート廃材の微粉末及び水硬性バインダー
によって確保される。[Action] The oil-absorbing aggregate is made of artificial zeolite, fine powder of concrete waste, and a hydraulic binder.The oil absorption is brought about by the zeolite, and the strength, especially the abrasion resistance, is due to the fine powder of concrete waste and the hydraulic binder. ensured by
【００１０】また該ゼオライトあるいはコンクリート廃
材の微粉末と水硬性バインダーの配合割合を調節するこ
とにより、その吸油性と強度、特に擦り減り性は変える
ことができる。[0010] Furthermore, by adjusting the blending ratio of the zeolite or concrete waste fine powder and the hydraulic binder, the oil absorption and strength, especially the abrasion resistance, can be changed.
【００１１】以下、本発明を具体的に説明する。フライ
アッシュをＮａＯＨ水溶液中で煮沸処理した人工ゼオラ
イトは、一般に粉末状或いはケーキ状で得られるが、そ
のゼオライトは一般的に吸油性が高い。例えば高炉スラ
グ、フライアッシュ、石灰石等の微粉末はその吸油率が
２０％前後の値しか示さないのに対し、フライアッシュ
からのゼオライトの吸油率は８０〜１１０％と著しく高
い。この吸油率の高いゼオライトを、例えばアスファル
トに添加するとアスファルト軽質油分がゼオライトに吸
着されてその軟化、流動が防止できることになる。The present invention will be specifically explained below. Artificial zeolite obtained by boiling fly ash in an aqueous NaOH solution is generally obtained in the form of powder or cake, and the zeolite generally has high oil absorption. For example, fine powders such as blast furnace slag, fly ash, and limestone have an oil absorption rate of only around 20%, whereas zeolite from fly ash has an extremely high oil absorption rate of 80 to 110%. When this high oil absorption zeolite is added to, for example, asphalt, the light oil content of the asphalt is adsorbed by the zeolite, thereby preventing its softening and fluidization.
【００１２】しかし、ゼオライトを吸油性骨材として使
用するためには所定の強度を持った塊成化が必要である
。ゼオライトそのものを単独で塊成化しても、ポーラス
なものしかできない欠点がある。即ちアスファルト用と
しては擦り減り性に劣ったものとなり、実用上不適当な
骨材しか製造できない。However, in order to use zeolite as an oil-absorbing aggregate, it is necessary to agglomerate the zeolite to have a certain strength. Even if zeolite itself is agglomerated by itself, it has the drawback that only porous products can be produced. In other words, it has poor abrasion resistance for use in asphalt, and only aggregates that are unsuitable for practical use can be produced.
【００１３】本発明は人工ゼオライト粉末或いはゼオラ
イトケーキ２０〜４０％、コンクリート廃材の微粉末４
０〜６０％及び水硬性バインダーを配合・混合し、塊成
化後養生し、乾燥する。一般に骨材としての強さは擦り
減り減量が３０％以下のものが良好なものとされており
、これを満足するために、ゼオライトは４０％以下、コ
ンクリート廃材の微粉末は４０％以上とするものである
。一方、吸油性骨材とは通常吸油率３０％以上とされて
おり、これを満足するために、ゼオライト配合割合は２
０％以上、コンクリート廃材の微粉末は６０％以下とす
るものである。上記ゼオライトとコンクリート廃材との
配合割合を調合すると吸油率、擦り減り減量を調節でき
る。[0013] The present invention uses artificial zeolite powder or zeolite cake 20 to 40%, concrete waste fine powder 4
0 to 60% and a hydraulic binder are mixed and agglomerated, then cured and dried. In general, it is considered that the strength as an aggregate is good if the weight loss due to abrasion is 30% or less, and to satisfy this, zeolite should be 40% or less and concrete waste fine powder should be 40% or more. It is something. On the other hand, oil-absorbing aggregate is usually said to have an oil absorption rate of 30% or more, and in order to satisfy this, the zeolite blending ratio is 2.
0% or more, and the fine powder of concrete waste shall be 60% or less. By adjusting the mixing ratio of the zeolite and concrete waste, the oil absorption rate and weight loss due to abrasion can be adjusted.
【００１４】上記ゼオライト、コンクリート廃材微粉末
及び水硬性バインダー例えばセメントの配合物はローラ
ーミキサー等の混合機を用いて充分に混合し、適当量の
水を添加しながら、ペレタイザー等の塊成化装置を用い
て塊成化する。この塊成化形状はその使用態様によって
決まるものであるが、一般的には粒状形状がその取扱か
ら好ましい。またその大きさは５ｍｍ以下とするとよい
。尚、上記水硬性バインダーとしてはセメント以外にフ
ライアッシュ、高炉スラグ微粉末をセメントの一部とし
て使用できる。The above-mentioned mixture of zeolite, concrete waste fine powder, and hydraulic binder such as cement is thoroughly mixed using a mixer such as a roller mixer, and while adding an appropriate amount of water, it is agglomerated using a pelletizer or other agglomeration device. agglomerate using. The shape of the agglomerate depends on its usage, but granular shapes are generally preferred from the viewpoint of handling. Further, the size thereof is preferably 5 mm or less. In addition to cement, fly ash and powdered blast furnace slag can be used as part of the cement as the hydraulic binder.
【００１５】[0015]
【実施例】１．吸油性骨材の製造 ■配合割合 配合割合を表１に示した。[Example] 1. Production of oil-absorbing aggregate ■Blending ratio The blending ratios are shown in Table 1.
【００１６】[0016]
【表１】[Table 1]
【００１７】■造粒、養生
上記配合物をローラーミキサーにて混練したものに水を
適当量添加し、５ｍｍφ以下に造粒した。又それを３５
℃、７日間の常温養生を施した後に乾燥した。(2) Granulation and curing The above mixture was kneaded using a roller mixer, an appropriate amount of water was added, and the mixture was granulated to a size of 5 mm or less. Also that 35
After curing at room temperature for 7 days at ℃, it was dried.
【００１８】■骨材評価結果
上記のような方法で得られた骨材を表２に示す項目につ
いて評価した。■ Aggregate evaluation results The aggregates obtained by the above method were evaluated on the items shown in Table 2.
【００１９】[0019]
【表２】[Table 2]
【００２０】■考察
以上の結果からゼオライト粉末配合割合を増加すると吸
油率は向上するが、擦り減り性は劣化する。一般に骨材
としての強さは擦り減り減量が３０％以下のものが良好
なものとされており、それに従うとゼオライト粉末配合
割合が４０％以下、コンクリート廃材の配合割合が４０
％以上であればそれを満足しており、又その吸油率が３
０％以上の骨材を吸油性骨材と呼んでいることから、ゼ
オライト粉末配合割合は２０％以上、コンクリート廃材
配合割合が６０％以下を必要とすることがいえる。従っ
てゼオライト粉末配合割合が２０〜４０％程度のもの、
コンクリート廃材配合割合が４０〜６０％程度のものが
擦り減り性、及び吸油性の優れた骨材となり得るといえ
る。■Consideration From the above results, increasing the blending ratio of zeolite powder improves the oil absorption rate, but deteriorates the abrasion resistance. In general, it is said that the strength of aggregate is good if the abrasion loss is 30% or less, and according to this, the blending ratio of zeolite powder is 40% or less, and the blending ratio of concrete waste is 40%.
% or more, it is satisfied, and the oil absorption rate is 3.
Since aggregates containing 0% or more are called oil-absorbing aggregates, it can be said that the zeolite powder blending ratio needs to be 20% or more, and the concrete waste material blending ratio needs to be 60% or less. Therefore, those with a zeolite powder blending ratio of about 20 to 40%,
It can be said that aggregates with a mixing ratio of concrete waste of about 40 to 60% can be excellent in abrasion resistance and oil absorption.
【００２１】２．吸油性骨材をアスファルトコンクリー
トへ使用した結果
これらをアスファルトコンクリートの骨材として使用し
た場合のホイールトラッキング試験での安定性、轍掘れ
特性を調査した。それを以下に示す。尚、アスファルト
コンクリートでのアスファルト添加割合は５．７％であ
った。2. As a result of using oil-absorbing aggregates in asphalt concrete, we investigated the stability in wheel tracking tests and rutting characteristics when these were used as aggregates in asphalt concrete. It is shown below. Incidentally, the asphalt addition ratio in the asphalt concrete was 5.7%.
【００２２】■対象とする吸油性骨材：（ｃ），（ｄ）
，（ｅ）
■アスファルトコンクリートへの添加割合：０％，２％
，４％，６％．
■アスファルトコンクリートでのホイールトラッキング
試験結果を表３に示した。■Target oil-absorbing aggregate: (c), (d)
, (e) ■ Addition ratio to asphalt concrete: 0%, 2%
,4%,6%. ■Table 3 shows the results of the wheel tracking test on asphalt concrete.
【００２３】[0023]
【表３】[Table 3]
【００２４】■考察：アスファルトコンクリートへこれ
らの吸油性骨材を使用することによりその轍掘れ特性は
改善されることが判った。[0024] Discussion: It has been found that the use of these oil-absorbing aggregates in asphalt concrete improves its rutting properties.
【００２５】[0025]
【発明の効果】以上のように、本発明は産業廃棄物であ
る、フライアッシュとコンクリート廃材を加工、複合化
することにより、吸油性骨材とすることが可能となり、
その産業上の効果は大きい。[Effects of the Invention] As described above, the present invention makes it possible to make oil-absorbing aggregate by processing and combining fly ash and concrete waste, which are industrial wastes.
Its industrial effects are significant.
Claims (2)
微粉末及び水硬性バインダーとからなり、その吸油量が
３０％以上である吸油性骨材。1. An oil-absorbing aggregate consisting of artificial zeolite, fine powder of concrete waste, and a hydraulic binder, the oil-absorbing amount of which is 30% or more.
キ２０〜４０％、コンクリート廃材の微粉末４０〜６０
％及び残部に水硬性バインダーを配合・混合し、塊成化
後養生し、乾燥することを特徴とする吸油性骨材の製造
方法。Claim 2: Zeolite powder or zeolite cake 20-40%, concrete waste fine powder 40-60%
A method for producing an oil-absorbing aggregate, which comprises blending and mixing a hydraulic binder in % and the remainder, curing after agglomeration, and drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2403052A JPH04219185A (en) | 1990-12-18 | 1990-12-18 | Oil absorptive aggregate and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2403052A JPH04219185A (en) | 1990-12-18 | 1990-12-18 | Oil absorptive aggregate and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04219185A true JPH04219185A (en) | 1992-08-10 |
Family
ID=18512802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2403052A Withdrawn JPH04219185A (en) | 1990-12-18 | 1990-12-18 | Oil absorptive aggregate and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04219185A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994006555A1 (en) * | 1992-09-21 | 1994-03-31 | Betonwerk Brunn Gesellschaft M.B.H. | Adsorbent material for removing pollutants |
| JP2006315890A (en) * | 2005-05-11 | 2006-11-24 | Shimizu Corp | Fine powder treatment apparatus and method, and regeneration system of concrete waste material |
| JP2016539066A (en) * | 2013-11-18 | 2016-12-15 | イエフペ エネルジ ヌヴェルＩｆｐ Ｅｎｅｒｇｉｅｓ Ｎｏｕｖｅｌｌｅｓ | Zeolite shaped by extrusion and granulation with hydraulic binder and having improved mechanical properties, and method for its preparation |
| US10207954B2 (en) * | 2016-12-22 | 2019-02-19 | Nano And Advanced Materials Institute Limited | Synthetic aggregate from waste materials |
-
1990
- 1990-12-18 JP JP2403052A patent/JPH04219185A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994006555A1 (en) * | 1992-09-21 | 1994-03-31 | Betonwerk Brunn Gesellschaft M.B.H. | Adsorbent material for removing pollutants |
| JP2006315890A (en) * | 2005-05-11 | 2006-11-24 | Shimizu Corp | Fine powder treatment apparatus and method, and regeneration system of concrete waste material |
| JP2016539066A (en) * | 2013-11-18 | 2016-12-15 | イエフペ エネルジ ヌヴェルＩｆｐ Ｅｎｅｒｇｉｅｓ Ｎｏｕｖｅｌｌｅｓ | Zeolite shaped by extrusion and granulation with hydraulic binder and having improved mechanical properties, and method for its preparation |
| US10207954B2 (en) * | 2016-12-22 | 2019-02-19 | Nano And Advanced Materials Institute Limited | Synthetic aggregate from waste materials |
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