JP2004142991A - High wear resistant cement based solidifying material and cement based block - Google Patents

High wear resistant cement based solidifying material and cement based block Download PDF

Info

Publication number
JP2004142991A
JP2004142991A JP2002309444A JP2002309444A JP2004142991A JP 2004142991 A JP2004142991 A JP 2004142991A JP 2002309444 A JP2002309444 A JP 2002309444A JP 2002309444 A JP2002309444 A JP 2002309444A JP 2004142991 A JP2004142991 A JP 2004142991A
Authority
JP
Japan
Prior art keywords
cement
aggregate
cement based
block
chip
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
JP2002309444A
Other languages
Japanese (ja)
Inventor
Takashi Sakamoto
坂本 隆
Kiyokata Ishii
石井 清堅
Hideharu Osada
長田 秀晴
Tatsutoshi Shimabara
島原 辰利
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.)
Toray Fine Chemicals Co Ltd
Osada Giken Co Ltd
Toray Industries Inc
Original Assignee
Toray Fine Chemicals Co Ltd
Osada Giken Co Ltd
Toray Industries Inc
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 Toray Fine Chemicals Co Ltd, Osada Giken Co Ltd, Toray Industries Inc filed Critical Toray Fine Chemicals Co Ltd
Priority to JP2002309444A priority Critical patent/JP2004142991A/en
Publication of JP2004142991A publication Critical patent/JP2004142991A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Landscapes

  • Road Paving Structures (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a high wear resistant cement based solidifying material and a cement based block by considering the wear resistance in a mortar part by improving problems that the conventional wear resistance improved concrete does not cause difference from the normal concrete because the mortar part is worn with a metallic fiber and a coarse aggregate (crush stone or gravel) part remains in the concerete reinforced by the metallic fiber, or the like, and the same problem occurs in the case using high hardness aggregate. <P>SOLUTION: The cement based solidifying material contains ≥5 wt.% coated aggregate formed by sticking a surface material on the surface of elastic material chips and having ≤3 mm particle diameter as an essential component in addition to hard fine aggregate. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、高耐磨耗性セメント系固化材及びセメント系ブロックに関するものである。
【0002】
【従来の技術】
セメント系固化材とは、セメントを使用する硬化性物質でればよく、コンクリート、モルタル等である。セメントもポルトランドセメントばかりでなく種々のものが使用できる。
セメント系ブロックとは、インターロッキングブロック、平板ブロック、塊状ブロック、消波ブロック(テトラポット等)、擁壁ブロック、護岸用ブロック等その用途や構造はどのようなものでもよい。
【0003】
セメント系固化材は、特にコンクリートとして今日非常に多量に使用されているが、まだその欠点や改良を要する部分は多い。
特に、耐磨耗性については道路等のように表面に摩擦や衝撃を受けるものにおいては大きな問題である。
【0004】
このような耐磨耗性を向上させたコンクリートも開発されている。
例えば、鋼繊維補強コンクリートや、硬度の高い骨材を使用したコンクリート等である。
【0005】
【発明が解決しようとする課題】
しかしながら、このような耐磨耗性を向上させたコンクリートであっても、通常のコンクリートと比較して、あまり差がないのが現状である。
それは、金属繊維等で補強したものは、その繊維と共にモルタル部分が摩滅していき、やはり粗骨材(砕石や玉砂利)部分が残る。硬度の高い骨材を用いるものも同様であり、モルタル部分の耐磨耗性を考慮できていない。
【0006】
そこで、本発明者は、摩擦、衝撃を硬度でカバーするのではなく、弾性部材でそれらを吸収する方法を検討した。しかし、セメント系固化材に比較的大きな(3〜10mm)ゴムチップ等を混合しても、ゴムチップとセメントとの接着が悪く、モルタル部分が摩滅するとすぐにゴムチップが抜け落ちる。
そこで、モルタル部分に小さいゴムチップを入れることを想起した。しかしこれも同様にゴムチップが抜け落ちた。
【0007】
【課題を解決するための手段】
以上のような現状に鑑み、本発明者は鋭意研究の結果、本発明高耐磨耗性セメント系固化材及びセメント系ブロックを完成させたものであり、その特徴とするところは、高耐磨耗性セメント系固化材にあっては、硬質細骨材以外に、弾性材チップの表面に表面材が固着されている被覆骨材で、そのサイズが3mm程度以下のものを必須成分として、重量%で5%以上含有する点にあり、セメント系ブロックにあっては、請求項1乃至3記載の高耐磨耗性セメント系固化材を成形型に注入し、養生固化させた点にある。
【0008】
硬質細骨材とは、砂、砂利、炭カル、シリカ、セラミック、タイルセルベン等の無機系細骨材であり、通常セメントに混合されるものでよいが、硬質で微細なものであればよい。サイズは、通常は1mm以下である。
【0009】
弾性材チップとは、被覆骨材の芯材として用いられるもので、弾性を有しているものであれば、材質としては何でもよく、ゴム、プラスチック等の合成又は天然の有機高分子物質、植物や動物の繊維等どのようなものでもよい。また、所謂産業廃棄物と称される固体類でもよい。
また、形状は自由であり、球状でも、偏平でも破砕形でも、又繊維形状でもよい。
サイズは後述する被覆骨材の全体サイズから決めればよく、表面材等の被覆層の厚みは小さいので、ほぼ被覆骨材の全体サイズと等しい。
【0010】
弾性材チップとして、廃タイヤの破砕物を使用すれば、コスト低減だけでなく、廃棄物処理ができ、環境問題も軽減できるという効果もある。
【0011】
この弾性材チップに表面材を固着する。
表面材とは、珪砂の粒や粉、セメントの粉、タンカル、シリカ、セラミック、カーボン等の無機粉体、またプラスチックの粉砕品等の有機粉体でもよく、粉体、粒体やいびつな形状のものでもよい。微細な繊維状物等の長形のものでも、フライアッシュ等の微粉末でもよい。
化学的な性質や反応を必ずしも求めているのではなく、その物理的な存在、形状そのものを第1に求めているためである。
しかし、セメント系固化材との接着性を考慮すれば、化学的にも固着するセメント粉が最良であることは当然である。
【0012】
表面材のサイズは、0.01μ〜1mm程度であるが、弾性材チップのサイズによってはより大きくてもよい。表面材のサイズはあくまでも、弾性材チップとの相対的な関係で定めればよい。例えば、弾性材チップの径の1/1000〜1/10が好適である。しかし、チップが非常に大きい場合や、表面材が非常に小さい場合には、1/1000以下でも構わない。通常、10μ以下の粒子が最も効果的である。
また、表面材が繊維状の場合は、チップの径(最も長い対角線)と同じオーダーの長さのものでもよい。
【0013】
表面材は、1種類とは限らず、複数種使用してもよい。特に、大きいものを最初に固着させ、その後より小さなものを部分的に固着させてもよい。このようにすれば、チップ全体としてより大きな凹凸表面を有することとなる。
【0014】
チップに表面材を付着させる方法は、接着方式と融着方式がある。接着方式の場合には、チップに接着剤を塗布し、その接着力によって表面材を付着させるのである。
【0015】
このチップに付着させる接着剤は、どのようなものでもよく、チップと表面材とを固着させる機能があればよい。
接着剤の例としては、ウレタン樹脂、エポキシ樹脂、エチレン酢酸ビニル樹脂、塩化ビニル樹脂、アクリル系樹脂(MMA樹脂等)、ポリエステル樹脂等があげられ、固体ポリマーの溶液化や粘度調整等のため溶剤を混合してもよい。
【0016】
チップに接着剤を付着させる方法は、噴霧、塗布、浸漬(所謂どぶ漬)、容器内での撹拌付着等どのような方法でもよい。付着の厚みも、少なくとも表面材が固着できる程度付着していればよく、厚く付着する必要はない。
【0017】
接着剤が付着した弾性材チップに表面材を固着させるには、それに表面材をまぶせばよいのである。例えば、樹脂(接着剤)コーティングしたチップを表面材中を転がす、チップに表面材を噴霧する、表面材の入った容器内に芯材を入れて撹拌する等自由である。表面材の固着は、チップの周囲全体に付着すればよいため、簡単である。余分なものは固着しないし、接着剤が露出している部分は自然に表面材が固着する。固着させた後、ふるいのようなもので余分な表面材を除去してもよい。
この接着剤と表面材の固着作業(工程)は、1回とは限らず、複数回行なってもよい。接着剤塗布後に大小の表面材を混合して付着させてもよい。
表面材粒子は、その重量に対する付着面積の大きいものほど優先して接着剤表面に付着する傾向にある。
重量に比して表面積の大きい物は、塗布樹脂の粘性により付着凝集しやすく、表面材の付着が難しいが、細長い繊維や薄いフィルムなどの場合には、張力を両端にかけて連続的に樹脂の塗布と表面材粉末の付着を行なうのがよい。
【0018】
接着剤付着後、表面材を周囲にまぶす場合、表面材が1層となって全表面を均一に覆うとは限らない。即ち、接着剤中に埋没するものが存在する場合がある。本発明では、埋没していてもよいが、最も表面に位置する表面材の少なくとも一部は樹脂で覆われていないようにする。
【0019】
次に融着方式について説明する。前記の接着方式では弾性材チップはどのようなものでも使用できたが、融着方式では熱による融解可能なものでなければならない。
チップの表面に表面材を融着させる方法は特に限定しない。例えば、チップを加熱し、表面が融解した所に表面材を適用すれば融着する。また、逆に表面材を加熱し、それをまだ融解していないチップの表面にまぶせば、接触部分でチップが融解し融着される。また他の方法として、チップと表面材を同時に加熱し混合してもよい。
【0020】
本発明は、モルタル部分(硬質骨材があればそれ以外のセメント部分)での摩滅減少が目的であるため、本発明被覆骨材は、3mm以下のものが必須である。また、発明者の実験では、重量割合で5%以上含まれていなければ、効果は少なかった。
ここでいう3mmは、おおよそ球形と考えてのサイズであり、破砕品の場合にはその最大外サイズである。3mm以下という表現もすべてのチップが3mm以下ということは実際に不可能であるため、その90%以上が3mm以下であれば十分である。
【0021】
勿論、3mm以上のサイズの大きな被覆材を混合してもよい。これは、モルタル部分の摩滅軽減というよりも、粗骨材の替わりと考えられる。
また、コンクリートのように大きな硬質骨材(粗骨材)が含まれていても問題はない。この場合、モルタル部分が耐磨耗性が高くなっているため、粗骨材の周囲が摩滅して彫れていくことが少ないため、粗骨材の抜け落ちが非常に少なかった。
【0022】
さらに、本発明セメント系固化材には、曲げ強度等を向上させるため、樹脂を混合してもよい。これは、すでに市販されているものでよい。水と混合されたものや、粉末状のものがある。種類はアクリル系エマルジョン樹脂等である。
混合する量は、セメント100重量部に対して3〜30重量部(固形分換算)が好ましい。この混合により、より耐磨耗性が向上する。
【0023】
本発明セメント系ブロックは、上記説明した高耐磨耗性セメント系固化材を型に入れて成形したものである。上記した通り、どのような用途のブロックにも適用できる。
ブロックは、一般にセメント、コンクリートによって製造され、道路、河川、海岸など激しい磨耗環境において使用される。構造体の強度や機能は初期においては問題ないが、磨耗によって強度も必要な機能も短期間で低下し、その役割が果たされなくなっていく。被覆骨材の混合により、耐磨耗性は著しく改善される。そのさい被覆骨材は、構造体内全体に混合してもよいが、表層付近に濃度を高めて混合してもよい。具体的には、ブロックの型枠の中に被覆骨材が低含有率あるいは含有されない生コンクリートを充填したのち、続いて被覆骨材含有率の高い生コンクリートを打設する。また、あらかじめ下層とするブロックを成形、硬化させたのち、被覆骨材含有率の高い上層を成形することもできる。さらにまた、被覆骨材を含有する下層の上に、被覆骨材のみあるいは被覆骨材を含有する化粧用骨材および樹脂からなる表層を成形しブロックを製造することもできる。
【0024】
【発明の実施の形態】
以下図面に示す実施例に基づいて本発明をより詳細に説明する。
実施例1
セメント 100重量部(ポルトランドセメント) 30.12%
細骨材  200重量部(5号珪砂) 60.24%
被覆骨材  32重量部 9.64%
(ゴムチップサイズ:平均粒径2.0mm、表面材はセメント粉、樹脂はウレタン樹脂)
これを水と混合して、所定枠内に打設して養生硬化させた。
【0025】
実施例2〜4も同様に作成した。この混合比率を表1の上部に示す。量はすべて重量部であり、表中の( )内の数値はドライベースの重量%である。また、樹脂は、アクリル系エマルジョン樹脂の固形分40%のものを用いた。
【表1】

Figure 2004142991
【0026】
比較例1及び2は、上記同様であるが、被覆骨材を入れないものと、被覆骨材の変わりに単なるゴムチップを入れたものである。
【0027】
以上の硬化物をボールミル法(3時間)で、その磨耗試験を行なった。
その結果を表1の下部に示す。
【0028】
表1に示す通り、実施例1〜4はすべて、摩滅が少なく、比較例との差は道路の寿命としては、倍以上と考えられる。また、比較例2はゴムチップを入れているが、被覆していないためセメントとの接着が悪く、ゴムチップ自体が抜け落ちるため、結果ゴムが耐磨耗にほとんど寄与していないということである。
【0029】
図1は、本発明セメント系ブロックを、インターロッキングブロック1に応用した例を示す。この例では、3mm以下の被覆骨材だけでなく、より大きな被覆骨材(3〜10mm)も混合している。
更に、表面のモルタル部分をブラスト(サンドブラスト、ショットブラスト等)処理によって削り、弾性部材を露出させている。この時ブラスト処理によって、弾性材チップの被覆部分は除去されてもかまわない。
【0030】
図2は、図1の断面図である。上部表面に弾性部材2が露出し、歩行者の負担を軽減するばかりでなく、表面が凍結したときすぐに氷が割れる。
【0031】
【発明の効果】
本発明高耐磨耗性セメント系固化材及びセメント系ブロックは、次のような大きなメリットがある。
(1) 小さなサイズの被覆ゴム骨材が含まれているため、固化材自体の耐磨耗性が大きく向上する。これは、その弾性によって、衝撃や摩擦を吸収するためと考えられる。
(2) 本発明固化材を用いて製造したブロックは、耐磨耗性に優れているため種々の用途での寿命が延びる。
【図面の簡単な説明】
【図1】本発明ブロックの1例を示す斜視図である。
【図2】本発明ブロックの1例を示す断面図である。
【符号の説明】
1 インターロッキングブロック
2 弾性部材[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a highly wear-resistant cement-based solidification material and a cement-based block.
[0002]
[Prior art]
The cement-based solidifying material may be a hardening substance using cement, such as concrete and mortar. Various cements can be used as well as Portland cement.
The cement-based block may be of any type, such as an interlocking block, a flat block, a massive block, a wave-dissipating block (such as a tetrapot), a retaining wall block, and a seawall.
[0003]
Although cement-based solidification materials are used in large quantities today, especially as concrete, there are still many disadvantages and areas requiring improvement.
In particular, the abrasion resistance is a serious problem in a device such as a road that receives friction or impact on its surface.
[0004]
Concrete with such improved wear resistance has also been developed.
For example, steel fiber reinforced concrete, concrete using high-hardness aggregate, and the like are used.
[0005]
[Problems to be solved by the invention]
However, even in the case of such concrete with improved wear resistance, there is currently little difference as compared with ordinary concrete.
The mortar portion of the material reinforced with metal fibers and the like is worn away with the fibers, and the coarse aggregate (crushed stones and gravel) remains. The same applies to those using aggregate having high hardness, and the wear resistance of the mortar portion cannot be considered.
[0006]
Therefore, the present inventors have studied a method of absorbing friction and impact with an elastic member instead of covering them with hardness. However, even if a relatively large (3 to 10 mm) rubber chip or the like is mixed with the cement-based solidifying material, the adhesion between the rubber chip and the cement is poor, and the rubber chip comes off as soon as the mortar portion is worn.
Then, I recalled putting a small rubber chip in the mortar. However, the rubber chips came off as well.
[0007]
[Means for Solving the Problems]
In view of the above situation, the present inventor has completed the highly wear-resistant cement-based solidification material and the cement-based block of the present invention as a result of intensive studies. In the wear-resistant cement-based solidified material, in addition to the hard fine aggregate, a coated aggregate having a surface material fixed to the surface of the elastic material chip and having a size of about 3 mm or less is an essential component, % Of the cement-based block, and in the case of the cement-based block, the highly wear-resistant cement-based solidifying material according to claims 1 to 3 is injected into a mold and cured and solidified.
[0008]
The hard fine aggregate is an inorganic fine aggregate such as sand, gravel, charcoal, silica, ceramic, and tile selven, and may be usually mixed with cement, but may be hard and fine. The size is usually 1 mm or less.
[0009]
The elastic material chip is used as the core material of the coated aggregate, and any material may be used as long as it has elasticity, and synthetic or natural organic polymer substances such as rubber and plastic, and plants are used. And any fiber such as animal fiber. Further, solids called so-called industrial waste may be used.
The shape is free, and may be spherical, flat, crushed, or fibrous.
The size may be determined from the overall size of the coated aggregate described later, and since the thickness of the coating layer such as the surface material is small, it is substantially equal to the entire size of the coated aggregate.
[0010]
If a crushed waste tire is used as the elastic material chip, not only the cost can be reduced, but also the waste can be treated and the environmental problem can be reduced.
[0011]
A surface material is fixed to the elastic material chip.
The surface material may be silica sand grains or powder, cement powder, inorganic powder such as tanker, silica, ceramic, carbon, etc., or organic powder such as pulverized plastic, etc., powder, granules or irregular shapes. It may be. It may be long, such as a fine fibrous material, or fine powder, such as fly ash.
This is because the chemical entity and the reaction are not always required, but the physical existence and the shape itself are first required.
However, in consideration of the adhesiveness with the cement-based solidifying material, it is natural that the cement powder that chemically adheres is the best.
[0012]
The size of the surface material is about 0.01 μm to 1 mm, but may be larger depending on the size of the elastic material chip. The size of the surface material may be determined based on the relative relationship with the elastic material chip. For example, 1/1000 to 1/10 of the diameter of the elastic material tip is preferable. However, when the chip is very large or the surface material is very small, it may be 1/1000 or less. Usually, particles of 10μ or less are most effective.
When the surface material is fibrous, the length may be the same as the diameter of the chip (the longest diagonal line).
[0013]
The surface material is not limited to one type, and a plurality of types may be used. In particular, the larger ones may be fixed first and the smaller ones partially fixed thereafter. In this case, the entire chip has a larger uneven surface.
[0014]
There are an adhesive method and a fusion method for attaching the surface material to the chip. In the case of the bonding method, an adhesive is applied to the chip, and the surface material is adhered by the adhesive force.
[0015]
The adhesive to be attached to the chip may be any adhesive, as long as it has a function of fixing the chip and the surface material.
Examples of the adhesive include a urethane resin, an epoxy resin, an ethylene vinyl acetate resin, a vinyl chloride resin, an acrylic resin (MMA resin, etc.), a polyester resin, and the like. May be mixed.
[0016]
The adhesive may be attached to the chip by any method such as spraying, coating, dipping (so-called dobu pickling), and stirring and attaching in a container. The thickness of the adhesion is not limited as long as the surface material is adhered at least so that the surface material can be adhered.
[0017]
In order to fix the surface material to the elastic material chip to which the adhesive has adhered, the surface material may be coated. For example, a chip coated with a resin (adhesive) is freely rolled in the surface material, the surface material is sprayed on the chip, or the core material is put into a container containing the surface material and stirred. The fixation of the surface material is simple because it only has to adhere to the entire periphery of the chip. Excess material does not adhere, and the surface material naturally adheres to the portion where the adhesive is exposed. After fixation, an excess surface material may be removed with a sieve.
The work (step) of fixing the adhesive and the surface material is not limited to one time, and may be performed a plurality of times. After applying the adhesive, a large and small surface material may be mixed and adhered.
The surface material particles tend to preferentially adhere to the surface of the adhesive as the adhesion area with respect to the weight increases.
Objects that have a large surface area compared to their weight tend to adhere and agglomerate due to the viscosity of the applied resin, making it difficult to adhere to the surface material. And the surface material powder are preferably adhered.
[0018]
When the surface material is applied to the surroundings after the adhesive is attached, the surface material does not always form a single layer and uniformly cover the entire surface. That is, there is a case where something is buried in the adhesive. In the present invention, at least a part of the surface material located on the most surface may not be covered with the resin, although it may be buried.
[0019]
Next, the fusing method will be described. In the above-mentioned bonding method, any elastic material chip can be used, but in the fusion method, it must be meltable by heat.
The method for fusing the surface material to the chip surface is not particularly limited. For example, when the chip is heated and a surface material is applied to a place where the surface is melted, the chip is fused. Conversely, if the surface material is heated and scattered on the surface of the chip that has not been melted yet, the chip is melted and fused at the contact portion. As another method, the chip and the surface material may be simultaneously heated and mixed.
[0020]
The purpose of the present invention is to reduce the abrasion in the mortar portion (if there is a hard aggregate, the other cement portion). Therefore, the coated aggregate of the present invention must have a thickness of 3 mm or less. In the experiment by the inventor, if the content was not more than 5% by weight, the effect was small.
Here, 3 mm is a size considered to be approximately spherical, and in the case of a crushed product, it is the maximum outside size. Since it is actually impossible to say that all chips are 3 mm or less, the expression of 3 mm or less is sufficient if 90% or more of them is 3 mm or less.
[0021]
Of course, a large coating material having a size of 3 mm or more may be mixed. This is considered to be a substitute for coarse aggregate rather than a reduction in mortar wear.
There is no problem even if a large hard aggregate (coarse aggregate) such as concrete is included. In this case, since the mortar portion had high abrasion resistance, the periphery of the coarse aggregate was hardly worn and carved, so that the coarse aggregate fell off very little.
[0022]
Further, a resin may be mixed with the cement-based solidification material of the present invention in order to improve bending strength and the like. This may be one already on the market. Some are mixed with water and some are in powder form. The type is an acrylic emulsion resin or the like.
The mixing amount is preferably 3 to 30 parts by weight (in terms of solid content) based on 100 parts by weight of cement. By this mixing, the wear resistance is further improved.
[0023]
The cement-based block of the present invention is obtained by molding the above-described highly wear-resistant cement-based solidifying material in a mold. As described above, the present invention can be applied to blocks for any use.
Blocks are commonly made of cement and concrete and are used in severe wear environments such as roads, rivers, and shores. Although the strength and function of the structure are not problematic in the early stage, the strength and required functions are reduced in a short period of time due to wear, and the role is no longer fulfilled. The abrasion resistance is significantly improved by mixing the coated aggregate. In this case, the coated aggregate may be mixed in the whole structure, or may be mixed near the surface layer with a high concentration. More specifically, after filling the ready-mixed concrete having a low or no content of the coated aggregate into the block frame, the ready-mixed concrete having a high content of the coated aggregate is poured. Further, after the block serving as the lower layer is formed and cured in advance, the upper layer having a high content of the coated aggregate can be formed. Furthermore, a block can also be produced by molding a surface layer composed of only the coated aggregate or a cosmetic aggregate containing the coated aggregate and a resin on the lower layer containing the coated aggregate.
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in more detail based on embodiments shown in the drawings.
Example 1
100 parts by weight of cement (Portland cement) 30.12%
Fine aggregate 200 parts by weight (No.5 silica sand) 60.24%
32% by weight of coated aggregate 9.64%
(Rubber chip size: average particle size 2.0 mm, surface material is cement powder, resin is urethane resin)
This was mixed with water and poured into a predetermined frame to cure and harden.
[0025]
Examples 2 to 4 were similarly prepared. This mixing ratio is shown in the upper part of Table 1. All amounts are parts by weight, and the values in parentheses in the table are% by weight on a dry basis. The resin used was an acrylic emulsion resin having a solid content of 40%.
[Table 1]
Figure 2004142991
[0026]
Comparative Examples 1 and 2 are the same as above, except that no coated aggregate was added, and a simple rubber chip was inserted instead of the coated aggregate.
[0027]
The above cured product was subjected to a wear test by a ball mill method (3 hours).
The results are shown in the lower part of Table 1.
[0028]
As shown in Table 1, all of Examples 1 to 4 show little wear, and the difference from the comparative example is considered to be more than double the life of the road. In Comparative Example 2, although rubber chips were inserted, the rubber chips did not contribute to abrasion resistance because the rubber chips did not adhere and cement adhesion was poor, and the rubber chips themselves fell off.
[0029]
FIG. 1 shows an example in which the cement-based block of the present invention is applied to an interlocking block 1. In this example, not only the coated aggregate of 3 mm or less, but also a larger coated aggregate (3 to 10 mm) is mixed.
Further, the mortar portion on the surface is shaved by blasting (sand blasting, shot blasting, etc.) to expose the elastic member. At this time, the covering portion of the elastic material chip may be removed by blasting.
[0030]
FIG. 2 is a sectional view of FIG. The elastic member 2 is exposed on the upper surface, which not only reduces the burden on the pedestrian but also breaks the ice immediately when the surface freezes.
[0031]
【The invention's effect】
The high wear-resistant cement-based solidification material and the cement-based block of the present invention have the following major advantages.
(1) Since the coated rubber aggregate of a small size is included, the abrasion resistance of the solidified material itself is greatly improved. This is thought to be due to the absorption of impact and friction due to its elasticity.
(2) Since the block manufactured using the solidified material of the present invention has excellent wear resistance, the service life of the block for various uses is extended.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of a block according to the present invention.
FIG. 2 is a cross-sectional view showing one example of a block of the present invention.
[Explanation of symbols]
1 interlocking block 2 elastic member

Claims (7)

硬質細骨材以外に、弾性材チップの表面に表面材が固着されている被覆骨材で、そのサイズが3mm程度以下のものを必須成分として、重量%で5%以上含有することを特徴とする高耐磨耗性セメント系固化材。In addition to the hard fine aggregate, a coated aggregate having a surface material fixed to the surface of the elastic material chip and having a size of about 3 mm or less as an essential component is contained by 5% or more by weight%. High wear resistant cement-based solidification material. サイズが5mm以上の硬質粗骨材も含有する請求項1記載の高耐磨耗性セメント系固化材。The highly wear-resistant cement-based solidified material according to claim 1, further comprising a hard coarse aggregate having a size of 5 mm or more. サイズが3mm以上の被覆骨材も含有するものである請求項1又は2記載の高耐磨耗性セメント系固化材。3. The highly wear-resistant cement-based solidified material according to claim 1, further comprising a coated aggregate having a size of 3 mm or more. セメント混和用エマルジョン樹脂又は粉末樹脂を対セメント比で3〜30重量%(固形分換算)含有するものである請求項1乃至3記載の高耐磨耗性セメント系固化材。4. A highly wear-resistant cement-based solidified material according to claim 1, wherein the cement-containing emulsion resin or powder resin is contained in an amount of 3 to 30% by weight (in terms of solid content) relative to the cement. 請求項1乃至4記載の高耐磨耗性セメント系固化材を成形型に注入し、養生固化させたことを特徴とするセメント系ブロック。A cement block wherein the highly wear-resistant cement-based solidifying material according to any one of claims 1 to 4 is poured into a molding die and cured and solidified. 少なくともその1表面にブラスト仕上げしたものである請求項5記載のセメント系ブロック。6. A cement block according to claim 5, wherein at least one surface thereof is blasted. インターロッキングブロックである請求項6記載のセメント系ブロック。The cement-based block according to claim 6, which is an interlocking block.
JP2002309444A 2002-10-24 2002-10-24 High wear resistant cement based solidifying material and cement based block Pending JP2004142991A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002309444A JP2004142991A (en) 2002-10-24 2002-10-24 High wear resistant cement based solidifying material and cement based block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002309444A JP2004142991A (en) 2002-10-24 2002-10-24 High wear resistant cement based solidifying material and cement based block

Publications (1)

Publication Number Publication Date
JP2004142991A true JP2004142991A (en) 2004-05-20

Family

ID=32455253

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002309444A Pending JP2004142991A (en) 2002-10-24 2002-10-24 High wear resistant cement based solidifying material and cement based block

Country Status (1)

Country Link
JP (1) JP2004142991A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008050727A (en) * 2006-08-28 2008-03-06 Unitica Fibers Ltd Material of construction, construction method of the same and sheet used for the material
CN105386379A (en) * 2015-10-20 2016-03-09 山东大学 Plugging-resistant freeze-resistant pervious concrete pavement brick and manufacturing method
CN106012741A (en) * 2016-05-10 2016-10-12 黑龙江省中信路桥材料有限公司 Manufacturing method of concrete pavement brick with surface course
JP2019503953A (en) * 2015-11-17 2019-02-14 ザ・シュレディッド・タイヤ・インコーポレイテッドThe Shredded Tire Inc. Environmentally friendly insulated construction block
CN110950588A (en) * 2019-11-19 2020-04-03 南京港港务工程有限公司 Concrete interlocking block and production process thereof

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63307146A (en) * 1987-06-09 1988-12-14 Mitsubishi Mining & Cement Co Ltd Interlocking block
JPH07330470A (en) * 1994-06-03 1995-12-19 Nippon Kogyo Kk Cement molded goods and their production
JPH08188457A (en) * 1994-12-28 1996-07-23 Shigeo Koshikawa Production of rubber-containing hardened material
JPH08325046A (en) * 1995-05-26 1996-12-10 Chuo Kasei Kk Lightweight aggregate for mortar and lightweight mortar and lightweight building material using the same
JPH09142908A (en) * 1995-11-21 1997-06-03 Hayakawa Rubber Co Ltd Concrete block having elasticity and its production
JPH09301753A (en) * 1996-05-17 1997-11-25 Arai Seisakusho:Kk Additive for concrete and its production
JPH10113918A (en) * 1996-10-09 1998-05-06 Mitsubishi Materials Corp Concrete block for decorative building material, decorative mortar for making the same, and manufacture thereof
JP2001026903A (en) * 1999-04-27 2001-01-30 Toray Ind Inc Surface treatment method for passage
JP2001278649A (en) * 2000-03-29 2001-10-10 Sekisui Chem Co Ltd Water permeable member
JP2001302312A (en) * 2000-04-14 2001-10-31 Inax Corp Cement hardened body, production process of cement hardened body and cement admixture

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63307146A (en) * 1987-06-09 1988-12-14 Mitsubishi Mining & Cement Co Ltd Interlocking block
JPH07330470A (en) * 1994-06-03 1995-12-19 Nippon Kogyo Kk Cement molded goods and their production
JPH08188457A (en) * 1994-12-28 1996-07-23 Shigeo Koshikawa Production of rubber-containing hardened material
JPH08325046A (en) * 1995-05-26 1996-12-10 Chuo Kasei Kk Lightweight aggregate for mortar and lightweight mortar and lightweight building material using the same
JPH09142908A (en) * 1995-11-21 1997-06-03 Hayakawa Rubber Co Ltd Concrete block having elasticity and its production
JPH09301753A (en) * 1996-05-17 1997-11-25 Arai Seisakusho:Kk Additive for concrete and its production
JPH10113918A (en) * 1996-10-09 1998-05-06 Mitsubishi Materials Corp Concrete block for decorative building material, decorative mortar for making the same, and manufacture thereof
JP2001026903A (en) * 1999-04-27 2001-01-30 Toray Ind Inc Surface treatment method for passage
JP2001278649A (en) * 2000-03-29 2001-10-10 Sekisui Chem Co Ltd Water permeable member
JP2001302312A (en) * 2000-04-14 2001-10-31 Inax Corp Cement hardened body, production process of cement hardened body and cement admixture

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008050727A (en) * 2006-08-28 2008-03-06 Unitica Fibers Ltd Material of construction, construction method of the same and sheet used for the material
CN105386379A (en) * 2015-10-20 2016-03-09 山东大学 Plugging-resistant freeze-resistant pervious concrete pavement brick and manufacturing method
JP2019503953A (en) * 2015-11-17 2019-02-14 ザ・シュレディッド・タイヤ・インコーポレイテッドThe Shredded Tire Inc. Environmentally friendly insulated construction block
CN106012741A (en) * 2016-05-10 2016-10-12 黑龙江省中信路桥材料有限公司 Manufacturing method of concrete pavement brick with surface course
CN106012741B (en) * 2016-05-10 2019-08-09 黑龙江省中信路桥材料有限公司 A kind of concrete road surface brick producing process with surface layer
CN110950588A (en) * 2019-11-19 2020-04-03 南京港港务工程有限公司 Concrete interlocking block and production process thereof

Similar Documents

Publication Publication Date Title
JP3882161B2 (en) Resin paving material, resin paving method and asphalt paving surface treatment method
JP2004142991A (en) High wear resistant cement based solidifying material and cement based block
JP6938934B2 (en) Ground improvement method using steelmaking slag and ground construction method using steelmaking slag
CN110130172A (en) A kind of anticoagulant ice composite precision table prescription method of bituminous pavement
JP3678732B2 (en) Partially hydrated molded body of hydraulic composition, method for producing the same and method for using the same
US4333765A (en) Sandless concrete
JP3980792B2 (en) aggregate
JP3145353B2 (en) Method for producing composite synthetic resin composition
JP2905958B2 (en) Resin lining material
JP3197886B2 (en) Ballast coating method
JP2003300762A (en) Production method for aggregate
JP2003082261A (en) Composition for aquatic plant growing coating, method for forming aquatic plant growing coating film and aquatic plant growing structure
JP2001247350A (en) Repairing material
JP2003293304A (en) Highly durable, room-temperature mixture for extra- thin-layer repair works, and its manufacturing method
JPH09142908A (en) Concrete block having elasticity and its production
JP6960107B2 (en) How to make roughened roadway pavement concrete
JP4116829B2 (en) Permeable concrete block
JP2002021010A (en) Elastic paving material and elastic paving body
JP2003268708A (en) Method of coating surfaces of civil work and building
JP2005139412A (en) Composite synthetic resin composition, its production process, and molded product, pavement structure and paving method using the same
JP2001182003A (en) Water permeable concrete block for pavement
JPH1161710A (en) Concrete material, concrete block and manufacture of concrete block
JPH0987053A (en) Instantaneously demoldable porous concrete molding and its production
JP2000038519A (en) Water-permeable block, structure, pavement structure and paving process using composite synthetic resin composition
JPH10216669A (en) Method of solidifying incineration ash of waste powder paint

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20051013

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20060515

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080410

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090113

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090309

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20090312

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20090312

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100302

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20100706