JPH0244590B2 - - Google Patents
Info
- Publication number
- JPH0244590B2 JPH0244590B2 JP27528787A JP27528787A JPH0244590B2 JP H0244590 B2 JPH0244590 B2 JP H0244590B2 JP 27528787 A JP27528787 A JP 27528787A JP 27528787 A JP27528787 A JP 27528787A JP H0244590 B2 JPH0244590 B2 JP H0244590B2
- Authority
- JP
- Japan
- Prior art keywords
- soil
- foamed
- shale
- foamed shale
- volume
- 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 - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
-
- 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
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Description
【発明の詳細な説明】
(a) 産業上の利用分野
本発明は、発泡頁岩（本明細書において記述さ
れる、「発泡頁岩」とは、通常の発泡頁岩の外に、
発泡真珠岩等の、軽量骨材、保冷材として使用さ
れる材料を総称するものである）の容積を減らし
た形で処理することの出来る発泡頁岩の減容化方
法に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention is applicable to foamed shale (in this specification, "foamed shale" refers to foamed shale, in addition to ordinary foamed shale).
The present invention relates to a method for reducing the volume of foamed shale that can be processed by reducing the volume of materials used as lightweight aggregates and cold insulators, such as foamed nacre.
(b) 従来の技術
従来、発泡頁岩は、軽量骨材や保冷材として用
いられている。(b) Conventional technology Foamed shale has conventionally been used as lightweight aggregate and cold insulation material.
(c) 発明が解決しようとする問題点
しかし、発泡頁岩は、比重が極めて軽く、廃材
として出た場合に、嵩高となり、その処理に困難
を伴う場合が多い。(c) Problems to be Solved by the Invention However, foamed shale has an extremely low specific gravity, and when it is produced as waste material, it becomes bulky and is often difficult to dispose of.
本発明は、前述の欠点を解消すべく、発泡頁岩
の容積を大幅に減らした形で処理することの出来
る、発泡頁岩の減容化方法を提供することを目的
とするものである。 SUMMARY OF THE INVENTION In order to eliminate the above-mentioned drawbacks, the present invention aims to provide a method for reducing the volume of foamed shale, which allows the treatment of foamed shale in a form that significantly reduces its volume.
(d) 問題点を解決するための手段
即ち、本発明は、発泡頁岩と土を混練手段を用
いて混練し、該土との接触により前記発泡頁岩の
容積を減少させ、盛土材として利用できるように
して構成される。(d) Means for solving the problem That is, the present invention kneads foamed shale and soil using a kneading means, reduces the volume of the foamed shale by contacting with the soil, and can be used as an embankment material. It is configured like this.
(e) 作用
上記した構成により、本発明は、混練により、
多孔質の発泡頁岩は土の粒子にその表面を削りと
られる形でその容積を減少させるように作用す
る。(e) Effect With the above configuration, the present invention can, by kneading,
Porous foamed shale is affected by soil particles that reduce its volume by scraping its surface.
(f) 実施例
以下、本発明の実施例を図面に基づき説明す
る。(f) Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings.
第１図は本発明による減容化方法を用いて、盛
土材用土を製造した場合の、土の圧縮試験結果を
示す図、
第２図は試験に用いた土の土質試験結果を示す
図である。 Figure 1 is a diagram showing the results of a compression test of soil when embankment material soil was manufactured using the volume reduction method according to the present invention, and Figure 2 is a diagram showing the results of a soil quality test of the soil used in the test. be.
発泡頁岩の処理方法として、該発泡頁岩を土と
混練して盛土として用いることが考えられる。こ
の場合、土として、第２図に示す土質の土を用い
る場合、この種の土は、自然含水比Woは、50.8
％で、液性限界WLは、45.5％で、WL＜Woの関係
となり、乱すことにより液状化を呈しやすく、強
度低下の著しい土である。 As a method for treating foamed shale, it is possible to mix the foamed shale with soil and use it as embankment. In this case, when using soil with the soil quality shown in Figure 2, the natural moisture content W o of this type of soil is 50.8.
%, the liquid limit W L is 45.5%, which is the relationship W L < W o , and the soil is susceptible to liquefaction when disturbed, resulting in a significant decrease in strength.
この自然状態の土に粒状に形成された発泡頁岩
をミキサで混練する。発泡頁岩は、比重が極めて
軽いので、混入すべき発泡頁岩を一度にミキサ中
に投入すると、発泡頁岩同士が固まつてしまい、
土との混合が適正に行われない不都合がある。そ
こで、該発泡頁岩の混練に際しては、混合すべき
発泡頁岩を一度にミキサ中に投入することなく、
まず前以てミキサ中に投入された土に対して、少
量ずつ分割した形で経時的に投入する。すると、
投入された発泡頁岩は土の上にまぶされる形とな
るので、発泡頁岩同士が固まることなく、土に対
して均等に混ぜ合わされる。本実施例の場合、重
量比で４％づつ投入したが、この投入態様は自由
に設定可能なことは勿論である。また、バケツト
タイプのミキサを用いることなく、スクリユーオ
ーガ状のミキサを用い、土をスクリユーで移送し
つつ、その途中の複数個所で、該移送中の土に対
して、発泡頁岩を所定量ずつ投入するようにする
ことも当然可能である。即ち、発泡頁岩は、土に
対して経時的に投入される限り、その投入態様は
どのようなものでもよいことは勿論である。ま
た、土と発泡頁岩が十分に混練されるためには、
十分な撹拌時間を掛ける必要が有る。本実施例の
場合、撹拌時間は約３分間とした。 Granular foamed shale is mixed into this natural soil using a mixer. Foamed shale has an extremely low specific gravity, so if you pour all the foamed shale into the mixer all at once, the foamed shale will solidify together.
There is an inconvenience that mixing with soil is not done properly. Therefore, when kneading the foamed shale, the foamed shale to be mixed is not put into the mixer all at once.
First, the soil that has been placed in the mixer in advance is divided into small amounts and added over time. Then,
The inserted foamed shale is sprinkled on top of the soil, so the foamed shale does not harden together and is evenly mixed into the soil. In the case of this example, 4% by weight was added at a time, but it goes without saying that the manner of addition can be freely set. In addition, instead of using a bucket type mixer, a screw auger type mixer is used to transport the soil with a screw, and at multiple locations along the way, a predetermined amount of foamed shale is added to the soil being transported. Of course, it is also possible to do so. That is, it goes without saying that the foamed shale may be added in any manner as long as it is added to the soil over time. In addition, in order for soil and foamed shale to be sufficiently mixed,
It is necessary to allow sufficient stirring time. In the case of this example, the stirring time was about 3 minutes.
この撹拌により、多くの気泡を内部に有する発
泡頁岩は、土の粒子との摩擦によりその表面が削
りとられてしまい、その容積が大幅に減少する。
例えば、重量比で、土：発泡頁岩＝１：0.08とし
て混練すると、この容積比は、土の比重が1.716
で、発泡頁岩の比重を0.059として、
１／1.716：0.08／0.059＝583：1360
となる。即ち、１m3の土と2.33m3の発泡頁岩を混
練した場合に、混練の結果得られる用土の容積
は、実験の結果、1.14m3となつた。即ち、用土の
体積増加率は土を基準にすると、14％であるが、
発泡頁岩を基準にした体積縮小率は、94％とな
り、混練の結果発泡頁岩の容積は大幅に縮小され
たとこが判明する。 Due to this stirring, the surface of the foamed shale, which has many air bubbles inside, is scraped off by friction with the soil particles, and its volume is significantly reduced.
For example, if soil:foamed shale is mixed in a weight ratio of 1:0.08, the volume ratio will be 1.716.
So, assuming the specific gravity of foamed shale to be 0.059, it becomes 1/1.716:0.08/0.059=583:1360. That is, when 1 m 3 of soil and 2.33 m 3 of foamed shale were kneaded, the volume of soil obtained as a result of the kneading was 1.14 m 3 as a result of the experiment. In other words, the volume increase rate of soil is 14% based on soil, but
The volume reduction rate based on foamed shale was 94%, indicating that the volume of foamed shale was significantly reduced as a result of kneading.
こうして、土と発泡頁岩が十分に混練され、発
泡頁岩が減容化したところで、該混練された混合
土を盛土材として用いるが、その圧縮強度の試験
結果を、第１図に示す。図中重量比は、土（湿潤
重量）の重量に対する発泡頁岩の重量比である。
本試験では、発泡頁岩の重量比がそれぞれ０、
４、８、12、14、16、20、24、28％の場合につい
て、材令がおのおの０日及び７日のものについて
行つた。なお、０％及び４％の土は、供試体（直
径５cm、高さ10cmの円柱体）が自重により変形し
て測定不能、即ち圧縮強度は０（Kg／cm2）であつ
た。 In this way, after the soil and foamed shale are sufficiently kneaded and the volume of the foamed shale is reduced, the kneaded mixed soil is used as an embankment material, and the test results of its compressive strength are shown in FIG. The weight ratio in the figure is the weight ratio of foamed shale to the weight of soil (wet weight).
In this test, the weight ratio of foamed shale was 0,
For cases of 4, 8, 12, 14, 16, 20, 24, and 28%, the wood age was 0 days and 7 days, respectively. In the case of 0% and 4% soil, the specimen (cylindrical body with a diameter of 5 cm and a height of 10 cm) was deformed by its own weight and could not be measured, that is, the compressive strength was 0 (Kg/cm 2 ).
第１図からも明らかなように、材令０日のもの
については、発泡頁岩が14〜20％の混合比におい
て、乱れない土の一般的な強度である0.6〜1.0
（Kg／cm2）を越えており、盛土材として使用する
に極めて良好な結果を得ることが出来た。更に、
材令７日のものについては、頁岩が８〜20％の混
合比において、1.0（Kg／cm2）を越えており、発泡
頁岩と土が協調して強度発現に寄与していること
が分かる。特に、８％のものにおける強度発現が
著しい。 As is clear from Figure 1, the strength of 0-day-old material is 0.6-1.0, which is the typical strength of undisturbed soil, at a mixing ratio of 14-20% foamed shale.
(Kg/cm 2 ), and we were able to obtain extremely good results for use as embankment material. Furthermore,
For materials aged 7 days, the value exceeds 1.0 (Kg/cm 2 ) at a mixing ratio of 8 to 20% shale, indicating that foamed shale and soil work together to contribute to strength development. . In particular, the strength development in the case of 8% is remarkable.
(g) 発明の効果
以上、説明したように、本発明によれば、発泡
頁岩とシルト等の土を混練手段を用いて混練し、
該土との接触により前記発泡頁岩の容積を減少さ
せ、盛土材として利用できるようにして構成した
ので、嵩高の発泡頁岩の処理を、大幅にその容積
を減少させた形で行い、盛土材として利用するこ
とが出来る。(g) Effects of the invention As explained above, according to the present invention, foamed shale and soil such as silt are kneaded using a kneading means,
The volume of the foamed shale is reduced by contact with the soil so that it can be used as an embankment material, so the bulky foamed shale can be processed in a form where its volume is significantly reduced, and it can be used as an embankment material. It can be used.
なお、発泡頁岩は透水性に優れた性質を有する
ので、該発泡頁岩を混入することにより、土に良
好な透水性を付与することが出来る。 Note that since foamed shale has excellent water permeability, by mixing the foamed shale, it is possible to impart good water permeability to soil.
更に、発泡頁岩は、ある程度の保水性を有する
ので、該発泡頁岩が混入された土で形成された盛
土は、ある種の土の場合のように、乾燥によつて
脆弱化したり固結化したりすることが少なく、極
めて優れた特性を有している。 Furthermore, since foamed shale has a certain degree of water retention, embankments formed with soil mixed with foamed shale will not become brittle or consolidated due to drying, as is the case with some types of soil. It has extremely excellent characteristics.
また、発泡頁岩が混入された土に対して、必要
に応じてセメント等の個結剤を投入して更に強度
を高めるようにすることも当然可能である。 Furthermore, it is naturally possible to add a solidifying agent such as cement to the soil mixed with foamed shale to further increase its strength, if necessary.
第１図は本発明による減容化方法を用いて、盛
土材用土を製造した場合の、土の圧縮試験結果を
示す図、第２図は試験に用いた土の土質試験結果
を示す図である。
Figure 1 is a diagram showing the results of a compression test of soil when embankment material soil was manufactured using the volume reduction method according to the present invention, and Figure 2 is a diagram showing the results of a soil quality test of the soil used in the test. be.
Claims (1)
土との接触により前記発泡頁岩の容積を減少さ
せ、盛土材として利用できるようにして構成した
発泡頁岩の減容化方法。 ２ 混練に際して、発泡頁岩を土に対して経時的
に投入するようにして構成した特許請求の範囲第
１項記載の発泡頁岩の減容化方法。 ３ 混練に際して、発泡頁岩を重量比で８〜20％
投入して構成した特許請求の範囲第１項記載の発
泡頁岩の減容化方法。[Scope of Claims] 1. Volume reduction of foamed shale constructed by kneading foamed shale and soil using a kneading means and reducing the volume of the foamed shale through contact with the soil so that it can be used as embankment material. method. 2. A method for reducing the volume of foamed shale according to claim 1, wherein the foamed shale is added to the soil over time during kneading. 3. When kneading, add 8 to 20% foamed shale by weight.
A method for reducing the volume of foamed shale according to claim 1, wherein the method comprises:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62275287A JPH01119380A (en) | 1987-10-30 | 1987-10-30 | Volume-reducing method for foamed shale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62275287A JPH01119380A (en) | 1987-10-30 | 1987-10-30 | Volume-reducing method for foamed shale |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01119380A JPH01119380A (en) | 1989-05-11 |
| JPH0244590B2 true JPH0244590B2 (en) | 1990-10-04 |
Family
ID=17553324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62275287A Granted JPH01119380A (en) | 1987-10-30 | 1987-10-30 | Volume-reducing method for foamed shale |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01119380A (en) |
-
1987
- 1987-10-30 JP JP62275287A patent/JPH01119380A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01119380A (en) | 1989-05-11 |
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