JP2000203919A - Plastic-containing cement hardened body and its production - Google Patents
Plastic-containing cement hardened body and its productionInfo
- Publication number
- JP2000203919A JP2000203919A JP37265798A JP37265798A JP2000203919A JP 2000203919 A JP2000203919 A JP 2000203919A JP 37265798 A JP37265798 A JP 37265798A JP 37265798 A JP37265798 A JP 37265798A JP 2000203919 A JP2000203919 A JP 2000203919A
- Authority
- JP
- Japan
- Prior art keywords
- plastic
- cement
- weight
- present
- containing cement
- 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- Withdrawn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
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
-
- 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)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、プラスチック混入
セメント硬化体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 a hardened cement containing plastic and a method for producing the same.
【０００２】[0002]
【従来の技術】従来、廃棄物として回収した廃プラスチ
ックは焼却処分されていたが、焼却に伴い有害な気体が
発生する等の問題があるため、この廃プラスチックを再
利用する方法が種々検討されている。2. Description of the Related Art Conventionally, waste plastics collected as waste have been incinerated. However, since there is a problem such as generation of harmful gas upon incineration, various methods for reusing the waste plastics have been studied. ing.
【０００３】一例として、廃棄物として回収したペット
ボトルを細かく粉砕した後熱融解し、栗石等の建材の形
状に成型して再利用することが試みられているが、熱融
解のためのコストが高い等の問題点がある。[0003] As an example, it has been attempted to pulverize a PET bottle collected as waste into fine pieces, then heat-melt it, mold it into a shape of a building material such as Kuriishi, and reuse it. There are problems such as high.
【０００４】廃プラスチックを建材として再利用する他
の方法としては、粉末又はチップ状とした廃プラスチッ
クをセメント、水等と混和した組成物を硬化させ、建材
の形状とする方法がある。この方法は低コストで行うこ
とができるものの、多量の廃プラスチックを含有させた
場合得られる硬化物の硬度が著しく低くなるため、建材
として実用的な曲げ強度３０〜１００ｋｇ／ｃｍ2程度
の硬度を有するものを得る場合、廃プラスチックの組成
物への配合割合は１．５〜３．０ｋｇ／ｍ2程度に限ら
れるという問題点がある。As another method of reusing waste plastic as a building material, there is a method in which a composition in which powdered or chipped waste plastic is mixed with cement, water, or the like is cured to form a building material. Although this method can be carried out at low cost, the hardness of the cured product obtained when a large amount of waste plastic is contained becomes extremely low, so that a hardness of about 30 to 100 kg / cm 2, which is a practical bending strength as a building material, is required. In the case of obtaining the waste plastic, there is a problem that the mixing ratio of the waste plastic to the composition is limited to about 1.5 to 3.0 kg / m 2 .
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は、多量
の廃プラスチックを含み、低コストで生産でき、且つ高
い強度を有するセメント硬化体を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a hardened cement which contains a large amount of waste plastic, can be produced at low cost, and has high strength.
【０００６】本発明の他の目的は、多量の廃プラスチッ
クを含み、且つ高い強度を有するセメント硬化体を低コ
ストで製造する方法を提供することにある。Another object of the present invention is to provide a method for producing a hardened cement containing a large amount of waste plastic and having high strength at low cost.
【０００７】[0007]
【課題を解決するための手段】本発明によれば、セメン
ト及びプラスチックを含み、前記プラスチックの含有割
合が１０〜５０重量％であり、曲げ強度が３０〜１００
ｋｇ／ｃｍ2であることを特徴とするプラスチック含有
セメント硬化体が提供される。According to the present invention, a cement and a plastic are contained, the content of the plastic is 10 to 50% by weight, and the bending strength is 30 to 100%.
The present invention provides a cured plastic-containing cement, which is characterized by having a weight of kg / cm 2 .
【０００８】また、本発明によれば、セメント、プラス
チック、及び水をそれぞれ４０〜６５重量％、１０〜５
０重量％及び１０〜２０重量％の割合で含む組成物に、
振動を加える工程を含むことを特徴とする前記プラスチ
ック含有セメント硬化体の製造方法が提供される。According to the present invention, cement, plastic, and water are each contained in an amount of 40 to 65% by weight, 10 to 5% by weight.
In a composition containing 0% by weight and 10 to 20% by weight,
There is provided a method for producing the hardened plastic-containing cement, comprising a step of applying vibration.
【０００９】[0009]
【発明の実施の形態】本発明のプラスチック含有セメン
ト硬化体は、セメント及びプラスチックを含む。BEST MODE FOR CARRYING OUT THE INVENTION The cured cement containing plastic of the present invention contains cement and plastic.
【００１０】前記セメントとしては、特に限定されない
が、普通ポルトランドセメント、混合セメント等の各種
のセメントを用いることができる。The cement is not particularly limited, but various cements such as ordinary Portland cement and mixed cement can be used.
【００１１】本発明のプラスチック含有セメント硬化体
中の前記セメントの含有割合は、特に限定されないが、
後述する、本発明のプラスチック含有セメント硬化体を
製造するための組成物への配合割合として、４０〜６５
重量％、特に５０〜６３重量％の範囲であることが好ま
しい。The content ratio of the cement in the cured plastic-containing cement of the present invention is not particularly limited.
As described below, as a compounding ratio to the composition for producing the cured plastic-containing cement of the present invention, 40 to 65
% By weight, especially in the range of 50 to 63% by weight.
【００１２】前記プラスチックとしては、特に限定され
ないが、廃棄物として回収される各種の廃プラスチッ
ク、例えばペットボトルのボトルやキャップに由来する
もの等の廃プラスチックを好ましく用いることができ
る。The plastic is not particularly limited, but various types of waste plastics collected as waste, such as those derived from PET bottles and caps, can be preferably used.
【００１３】前記プラスチックの材質は、特に限定され
ないが、例えば、廃プラスチックとして回収されること
が多いポリエチレンテレフタレート、ポリプロピレン、
ポリエチレン、スチロール樹脂等を挙げることができ
る。The material of the plastic is not particularly limited. For example, polyethylene terephthalate, polypropylene,
Examples include polyethylene and styrene resin.
【００１４】前記プラスチックの形状としては、粉末
状、チップ状等の形状が好ましい。前記粉末又はチップ
の大きさは、０．０７４〜５ｍｍの範囲であることが好
ましい。The shape of the plastic is preferably a powder, a chip or the like. The size of the powder or chip is preferably in the range of 0.074 to 5 mm.
【００１５】前記プラスチックの含有割合は、プラスチ
ック含有セメント硬化体中１０〜５０、好ましくは２０
〜４０重量％である。プラスチックの含有割合を５０重
量％以下とすることにより、所望の強度を得ることがで
きる。The content ratio of the plastic is 10 to 50, preferably 20 in the hardened plastic-containing cement.
４０40% by weight. By setting the content of the plastic to 50% by weight or less, desired strength can be obtained.
【００１６】本発明のプラスチック含有セメント硬化体
は、前記セメント及びプラスチックを必須成分として含
むが、この他に、石炭灰、スラグ、セメントスラッジ等
の他の成分を含むことができる。前記他の成分を含有さ
せる場合の含有割合は、５〜３０重量％であることが好
ましい。[0016] The hardened plastic-containing cement of the present invention contains the above-mentioned cement and plastic as essential components, but may further contain other components such as coal ash, slag, cement sludge and the like. When the other component is contained, the content ratio is preferably 5 to 30% by weight.
【００１７】本発明のプラスチック含有セメント硬化体
の圧縮強度は、１００〜４００ｋｇ／ｃｍ2、好ましく
は２００〜４００ｋｇ／ｃｍ2であり、曲げ強度は３０
〜１００ｋｇ／ｃｍ2、好ましくは５０〜１００ｋｇ／
ｃｍ2である。このような強度を有し、且つ前記のプラ
スチック含有割合を有するプラスチック含有セメント硬
化体は、以下に述べる方法により製造することができ
る。The hardened plastic-containing cement of the present invention has a compressive strength of 100 to 400 kg / cm 2 , preferably 200 to 400 kg / cm 2 , and a bending strength of 30.
１００100 kg / cm 2 , preferably 50-100 kg / cm 2
cm 2 . The cured plastic-containing cement having such strength and having the above-mentioned plastic content can be produced by the method described below.
【００１８】本発明のプラスチック含有セメント硬化体
の比重は、１．０〜２．０とすることができる。The specific gravity of the hardened plastic-containing cement of the present invention can be 1.0 to 2.0.
【００１９】本発明のプラスチック含有セメント硬化体
は、インターロッキングブロック、コンクリート境界ブ
ロック等の形に成型することができ、これらの用途に使
用することができる。The cured plastic-containing cement of the present invention can be formed into an interlocking block, a concrete boundary block, or the like, and can be used for these purposes.
【００２０】本発明のプラスチック含有セメント硬化体
の製造方法は、前記セメント、前記プラスチック及び水
を含む組成物に、振動を加える工程を含む。The method for producing a hardened plastic-containing cement according to the present invention includes a step of applying vibration to the composition containing the cement, the plastic and water.
【００２１】前記組成物中の前記セメントの含有割合
は、４０〜６５重量％、好ましくは４５〜６０重量％で
ある。含有割合が４０重量％未満の場合、十分な強度を
有する硬化体を得ることができない。[0021] The content of the cement in the composition is 40 to 65% by weight, preferably 45 to 60% by weight. If the content is less than 40% by weight, a cured product having sufficient strength cannot be obtained.
【００２２】前記組成物中の前記プラスチックの含有割
合は、１０〜５０重量％、好ましくは２０〜４０重量％
である。含有割合が５０重量％を超える場合、十分な強
度を有する硬化体を得ることができない。The content of the plastic in the composition is 10 to 50% by weight, preferably 20 to 40% by weight.
It is. If the content exceeds 50% by weight, a cured product having sufficient strength cannot be obtained.
【００２３】前記組成物中の前記水の含有割合は、１０
〜２０重量％、好ましくは１２〜１８重量％である。含
有割合が１０重量％未満の場合又は２０重量％を超える
場合、後述する振動を加える工程を行っても、十分な強
度を有する硬化体を得ることができない。The content ratio of the water in the composition is 10
-20% by weight, preferably 12-18% by weight. When the content ratio is less than 10% by weight or more than 20% by weight, a cured body having sufficient strength cannot be obtained even if a step of applying vibration described below is performed.
【００２４】前記組成物は、前記各成分を、所望の含有
割合となるよう配合し、練り混ぜることにより得ること
ができる。The above composition can be obtained by blending the above-mentioned components so as to have a desired content ratio and kneading them.
【００２５】前記振動を与える工程は、具体的には例え
ば振幅０．１〜１０ｍｍ、周波数２０００〜４０００Ｈ
ｚの振動を２〜５分間加えることにより行うことができ
る。振動を与える際の態様は特に限定されないが、前記
組成物を所望の形状とするための型に打ち込んだ後、型
ごと振動を加えることが好ましい。The step of giving the vibration is, for example, an amplitude of 0.1 to 10 mm and a frequency of 2000 to 4000H.
It can be performed by applying vibration of z for 2 to 5 minutes. The mode of applying the vibration is not particularly limited, but it is preferable to apply vibration to the mold after the composition is driven into a mold for obtaining a desired shape.
【００２６】前記振動を加える工程終了後、振動を加え
た前記組成物を、前記型内から直ちに脱型するか、若し
くは前記型内で０〜２４時間放置することにより硬化さ
せることができる。硬化物は、さらに脱型し、１〜１４
日間養生させることにより、最終製品とすることができ
る。After the step of applying vibration, the composition to which vibration has been applied can be immediately removed from the mold or cured by leaving it in the mold for 0 to 24 hours. The cured product is further released from the mold, and
After curing for days, the final product can be obtained.
【００２７】[0027]
【発明の効果】本発明のプラスチック含有セメント硬化
体は、特定の高い含有割合でプラスチックを含有し、低
コストで生産でき、且つ高い強度を有し、しかも軽量で
あるので、廃プラスチックを利用した高強度、軽量なイ
ンターロッキングブロック、コンクリート境界ブロック
等のための建材として有用である。Industrial Applicability The hardened plastic-containing cement of the present invention contains a specific high content of plastic, can be produced at low cost, has high strength, and is light in weight. It is useful as a building material for high-strength, lightweight interlocking blocks, concrete boundary blocks, and the like.
【００２８】また、本発明のプラスチック含有セメント
硬化体の製造方法は、特定の組成物に振動を加える工程
を含むので、本発明のプラスチック含有セメント硬化体
を低コストで製造することができる。The method for producing a hardened plastic-containing cement of the present invention includes a step of applying vibration to a specific composition, so that the hardened plastic-containing cement of the present invention can be manufactured at low cost.
【００２９】[0029]
【実施例】以下実施例によりさらに詳細に説明するが、
本発明はこれらに限定されるものではない。The present invention will be described in more detail with reference to the following examples.
The present invention is not limited to these.
【００３０】[0030]
【実施例１〜６】廃プラスチックとして回収したペット
ボトルの瓶の部分を粉砕して０．０７４〜１．２ｍｍの
粉としたもの、０．０７４〜５ｍｍのチップとしたも
の、又はペットボトルのキャップの部分を粉砕して１．
２〜５ｍｍのチップとしたものと、セメント（高炉セメ
ントＢ種）と、水とをそれぞれ表１に示す重量比で配合
し練り混ぜたものを、型枠に充填し、振動台（大型ＶＣ
試験装置）により振幅１ｍｍ、周波数３０００Ｈｚの振
動を５分間加えた。振動を加える工程終了後、２４時間
放置してから脱型し、さらに水中２０℃で養生すること
により、大きさ４×４×１６ｃｍの供試体を得た。Examples 1 to 6 PET bottles collected as waste plastic were crushed to give 0.074 to 1.2 mm powder, 0.074 to 5 mm chips, or PET bottles. Crush the cap part.
A 2 to 5 mm chip, cement (blast furnace cement B type), and water were mixed and kneaded at a weight ratio shown in Table 1 and filled in a mold.
(Testing apparatus), vibration having an amplitude of 1 mm and a frequency of 3000 Hz was applied for 5 minutes. After the step of applying the vibration, the sample was left for 24 hours, demolded, and cured at 20 ° C. in water to obtain a test specimen having a size of 4 × 4 × 16 cm.
【００３１】これらの供試体について、圧縮強度、曲げ
強度について試験した。なお、圧縮強度及び曲げ強度は
５０ｔ万能アムスラー試験装置によって試験した。結果
を表１に示す。The test specimens were tested for compressive strength and bending strength. In addition, the compression strength and the bending strength were tested with a 50-t universal Amsler testing device. Table 1 shows the results.
【００３２】[0032]
【表１】 [Table 1]
───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐々木 肇 東京都港区北青山２丁目５番８号 株式会 社間組内 (72)発明者 岩井 正樹 東京都港区北青山２丁目５番８号 株式会 社間組内 (72)発明者 鹿子木 公春 北九州市若松区響町１丁目62番 西日本ペ ットボトルリサイクル株式会社内 (72)発明者 山下 晋 北九州市戸畑区飛幡町１番１号 新日本製 鐵株式会社八幡製鐵所内 (72)発明者 横尾 正義 北九州市戸畑区飛幡町１番１号 新日本製 鐵株式会社八幡製鐵所 Ｆターム(参考） 4G012 PA31 PA32 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hajime Sasaki 2-5-8 Kitaaoyama, Minato-ku, Tokyo Intra-company group (72) Inventor Masaki Iwai 2-5-2-8 Kitaaoyama, Minato-ku, Tokyo Stock association Inside the company group (72) Inventor Kimiharu Kagogi 1-62 Hibikicho, Wakamatsu-ku, Kitakyushu-shi West Japan Pet Bottle Recycling Co., Ltd. (72) Inventor Susumu Yamashita 1-1-1, Tobata-cho, Tobata-ku, Kitakyushu Nippon Steel Inside Yawata Works (72) Inventor Masayoshi Yokoo 1-1-1, Hibata-cho, Tobata-ku, Kitakyushu-shi Nippon Steel Corporation Yawata Works F-term (reference) 4G012 PA31 PA32
Claims (2)
プラスチックの含有割合が１０〜５０重量％であり、曲
げ強度が３０〜１００ｋｇ／ｃｍ2であることを特徴と
するプラスチック含有セメント硬化体。1. A hardened plastic-containing cement comprising cement and plastic, wherein the content of the plastic is 10 to 50% by weight and the flexural strength is 30 to 100 kg / cm 2 .
ぞれ４０〜６５重量％、１０〜５０重量％及び１０〜２
０重量％の割合で含む組成物に、振動を加える工程を含
むことを特徴とする請求項１記載のプラスチック含有セ
メント硬化体の製造方法。2. Cement, plastic and water are added at 40-65% by weight, 10-50% by weight and 10-2% by weight, respectively.
2. The method for producing a hardened plastic-containing cement according to claim 1, further comprising a step of applying vibration to the composition containing 0% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP37265798A JP2000203919A (en) | 1998-12-28 | 1998-12-28 | Plastic-containing cement hardened body and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP37265798A JP2000203919A (en) | 1998-12-28 | 1998-12-28 | Plastic-containing cement hardened body and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000203919A true JP2000203919A (en) | 2000-07-25 |
Family
ID=18500827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP37265798A Withdrawn JP2000203919A (en) | 1998-12-28 | 1998-12-28 | Plastic-containing cement hardened body and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000203919A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6748852B2 (en) | 2000-07-05 | 2004-06-15 | Kabushiki Kaisha Yamamoto-Seisakusho | Rice polisher, pre-polished rice producing apparatus, leveling device and pre-polished rice producing facility |
| CN100443183C (en) * | 2003-12-10 | 2008-12-17 | 石塚刚 | Process for producing wash-free rice and apparatus therefor |
-
1998
- 1998-12-28 JP JP37265798A patent/JP2000203919A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6748852B2 (en) | 2000-07-05 | 2004-06-15 | Kabushiki Kaisha Yamamoto-Seisakusho | Rice polisher, pre-polished rice producing apparatus, leveling device and pre-polished rice producing facility |
| US6752072B2 (en) | 2000-07-05 | 2004-06-22 | Kabushiki Kaisha Yamamoto Seisakusho | Rice polisher, pre-polished rice producing apparatus, leveling device and pre-polished rice producing facility |
| US6886453B2 (en) | 2000-07-05 | 2005-05-03 | Kabushiki Kaisha Yamamoto Seisakusho | Rice polisher, pre-polished rice producing apparatus, leveling device and pre-polished rice producing facility |
| CN100443183C (en) * | 2003-12-10 | 2008-12-17 | 石塚刚 | Process for producing wash-free rice and apparatus therefor |
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