JP3038198B1 - Manufacturing method of artificial aggregate using construction waste - Google Patents
Manufacturing method of artificial aggregate using construction wasteInfo
- Publication number
- JP3038198B1 JP3038198B1 JP35727598A JP35727598A JP3038198B1 JP 3038198 B1 JP3038198 B1 JP 3038198B1 JP 35727598 A JP35727598 A JP 35727598A JP 35727598 A JP35727598 A JP 35727598A JP 3038198 B1 JP3038198 B1 JP 3038198B1
- Authority
- JP
- Japan
- Prior art keywords
- water
- construction waste
- cement
- soil
- aggregate
- 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
-
- 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)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
【要約】
【課題】 従来投棄処分されるだけでしかなかった建設
廃材を人工骨材として再利用し、環境問題に貢献できる
と共に建設廃材の投棄処分が必要でなくてコストダウン
がはかれる。
【解決手段】 土質分を含む建設廃材ＡとセメントＣと
を混合して粒状に形成して人工骨材Ｄを構成する。これ
により土質分とセメントとが一体化した粒状物を砂や礫
等の天然骨材の代わりに建設用の骨材として再利用でき
る。Abstract: PROBLEM TO BE SOLVED: To recycle construction waste material that has only been conventionally discarded as an artificial aggregate, thereby contributing to environmental problems and reducing the cost by not requiring disposal of construction waste material. SOLUTION: An artificial aggregate D is formed by mixing a construction waste material A containing a soil component and a cement C to form granules. As a result, the granular material in which the soil component and the cement are integrated can be reused as construction aggregate instead of natural aggregate such as sand and gravel.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、天然の砂や礫等の
天然骨材の代わりに使用することができる建設廃材を用
いた人工骨材の製造方法に関するものである。The present invention relates to a construction waste material which can be used in place of natural aggregates such as natural sand and gravel .
The present invention relates to a method for producing an artificial aggregate .
【０００２】[0002]
【従来の技術】建設の分野で使用されている骨材はほと
んどが砂や礫等の天然骨材である。ところが、天然骨
材、例えば、砂を例に取ると、川や海底から採取した
り、あるいは山を掘り崩して採取したりしているが、無
秩序な採取は自然環境を破壊するという問題があり、こ
のため、自然環境の保護という点で現在採取に制限が加
わりつつあり、天然骨材の採取がし難くなると共に天然
骨材の採取コストが高くなってきている。2. Description of the Related Art Most aggregates used in the construction field are natural aggregates such as sand and gravel. However, taking natural aggregates, for example, sand, as an example, they are collected from rivers and seabeds, or digging down mountains, but there is a problem that disorderly collection destroys the natural environment. For this reason, restrictions are currently being imposed on the collection in terms of protection of the natural environment, making it difficult to collect natural aggregates and increasing the cost of collecting natural aggregates.
【０００３】一方、現在建設産業に係る産業活動で多量
の建設廃材が発生しており、この多量の建設廃材は再利
用されることなく、投棄処分されているのが現状であ
る。建設産業に係る産業活動で発生する建設廃材の中で
従来特に再利用ができなかった建設廃材としては、水分
を多量に含んだ土質分を主成分とする建設廃材を挙げる
ことができる。この水分を多量に含んだ土質分を主成分
とする建設廃材としては、ヘドロ、粘性土、土とセメン
トやベンドナイトとの混合物のような汚泥、生コンのミ
キサー車を洗車する際に発生するスラッジと称する砂な
どの土分とセメント分と水とが混合した泥状物、建設用
の骨材を得るための採石（砕石）場において採石（砕
石）を水洗いした際に発生する採石（砕石）粉と水とが
混合した泥状物等がある。これらの建設廃材はいずれも
多量の水を含んでいて利用価値がなく、また、投棄処分
するに当たっても泥状であるため取扱難く、環境悪化を
招き、処分コストも高くなるという問題がある。On the other hand, at present, a large amount of construction waste is generated by industrial activities related to the construction industry, and at present, this large amount of construction waste is discarded without being reused. Among construction waste materials generated in industrial activities related to the construction industry, examples of construction waste materials that have not been particularly reusable in the past include construction waste materials mainly composed of soil containing a large amount of water. Construction waste mainly composed of soil containing a large amount of water includes sludge, cohesive soil, sludge such as a mixture of soil and cement or bendonite, and sludge generated when washing a ready-mixed mixer truck. A quarry (crushed stone) generated when a quarry (crushed stone) is washed with water in a quarry (crushed stone) site for obtaining aggregate for construction, a muddy material in which soil and cement, such as sand, and cement are mixed with water. There is a muddy substance in which powder and water are mixed. All of these construction wastes have a problem that they contain a large amount of water and have no utility value, and are difficult to handle because they are muddy when they are dumped, which leads to environmental deterioration and increases disposal costs.
【０００４】[0004]
【発明が解決しようとする課題】本発明は上記の点に鑑
みてなされたものであって、従来投棄処分されるだけで
しかなかった建設廃材を人工骨材として再利用できて環
境問題に貢献できると共に建設廃材の投棄処分が必要で
ないのでコストダウンがはかれ、また、建設廃材を用い
て簡単に人工骨材を製造することを課題とするものであ
る。DISCLOSURE OF THE INVENTION The present invention has been made in view of the above points, and can reuse construction waste materials, which had conventionally only been discarded, as artificial aggregates, thereby contributing to environmental problems. Another object of the present invention is to reduce the cost because it is possible and does not require disposal of construction waste, and to easily produce an artificial aggregate using construction waste.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
に本発明に係る建設廃材を用いた人工骨材の製造方法
は、水分を多量に含水した土質分を含む建設廃材に吸水
剤を添加して吸水すると共にセメントを添加して撹拌す
る際に、炭酸ガスを供給して撹拌することでセメントを
核として土質分の成分を団粒して粒状の人工骨材を形成
することを特徴とするものである。すなわち、水分を多
量に含んだ土質分を含む建設廃材に単にセメントを添加
して撹拌しても、脆くて強度の弱いセメントを含んだ固
まりとなるのみで、到底建設用として使用する砂や礫の
代用品としての人工骨材とはなり得ないが、上記のよう
に水分を多量に含んだ土質分を含む建設廃材に吸水剤を
添加することで水分を吸水剤が吸収し、セメントを添加
して撹拌することで、簡単にセメントを核として土質分
の成分を団粒して粒状の人工骨材を形成することができ
るようになったものであり、また、水分を多量に含水し
た土質分を含む建設廃材に吸水剤を添加して吸水すると
共にセメントを添加して撹拌する際に、炭酸ガスを供給
して撹拌するので、炭酸ガスの作用によりセメントの硬
化反応を速め、短時間でセメントを核として土質分の成
分を団粒して粒状の人工骨材を形成することができるも
のである。 Means for Solving the Problems To solve the above problems, a method for producing an artificial aggregate using construction waste according to the present invention.
When adding a water-absorbing agent to a construction waste material containing soil containing a large amount of water to absorb water and adding cement, and stirring by adding carbon dioxide , the cement is used as a core to stir the soil. Are aggregated to form a granular artificial aggregate. In other words, simply adding cement to construction waste material containing soil containing a large amount of moisture and stirring it will only result in a lump containing brittle and low-strength cement. Although it cannot be an artificial aggregate as a substitute for the above, the water absorbing agent is added to the construction waste material containing soil containing a large amount of water as described above, so that the water absorbing agent absorbs the water and the cement is added. by stirring and is intended simply to cement has become possible to crumb the components of soil fraction as a nucleus to form a granular artificial bone material, also, moisture large amount and water
When water is absorbed by adding a water-absorbing agent to construction waste containing soil
Supply carbon dioxide gas when adding cement and stirring
Because of this, the hardening reaction of the cement is accelerated by the action of carbon dioxide gas, and the components of the soil can be aggregated with the cement as the core in a short time to form a granular artificial aggregate .
【０００６】[0006]
【発明の実施の形態】以下、本発明を添付図面に示す実
施形態に基づいて説明する。本発明の建設廃材を用いた
人工骨材１は、土質分を含む建設廃材とセメントとを混
合して粒状に形成したものである。本発明の人工骨材１
の主たる原料である建設廃材としては、例えば、ヘド
ロ、粘性土、あるいは土とセメントやベンドナイトとの
混合物のような汚泥、あるいは生コンのミキサー車を洗
車する際に発生するスラッジと称する砂などの土分とセ
メント分と水とが混合した泥状物、あるいは建設用の骨
材を得るための採石（砕石）場において採石（砕石）を
水洗いした際に発生する採石（砕石）粉と水とが混合し
た泥状物等であり、これらはいずれも、建設産業の現場
において水分を多量に含水した土質分を含む状態で建設
廃材として発生する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings. The artificial aggregate 1 using the construction waste material of the present invention is formed by mixing a construction waste material containing a soil component and cement to form a granule. Artificial aggregate 1 of the present invention
Examples of construction waste materials that are the main raw materials include sludge, viscous soil, or sludge such as a mixture of soil and cement or bendonite, or sand called sludge generated when washing a ready-mixed mixer truck. A quarry (crushed stone) powder and water generated when a quarry (crushed stone) is washed with water in a quarry (crushed stone) yard for obtaining aggregate for construction, or a muddy material in which soil, cement, and water are mixed. Are mixed mud, and all of these are generated as construction waste at the construction industry site in a state of containing a soil component containing a large amount of water.
【０００７】上記のような水分を多量に含水した土質分
を含む建設廃材に単にセメントを混入しただけでは、脆
くて強度の弱いセメントを含んだ固まりとなるのみで、
到底建設用として使用する砂や礫等の天然の骨材の代用
品としての人工骨材とはなり得ない。そこで、本発明に
おいては、上記の水分を多量に含水した土質分を含む建
設廃材に高分子吸水剤のような吸水剤（例えば、アクリ
ル酸重合物金属塩、ポリグルタミン系アミノ酸ポリマー
等を挙げることができるがこれにのみ限定されない）を
添加して水分を吸水させると共にセメントを混入して撹
拌するのであるが、このように、撹拌装置Ｅ内に水分を
多量に含水した土質分を含む建設廃材Ａ、吸水剤Ｂ、セ
メントＣを投入して撹拌する際に、更に炭酸ガスＦを供
給して撹拌するものであり、このように撹拌してセメン
トの粒子を核にして土質分を含む建設廃材を団粒（つま
り造粒）することで砂状、礫状等の粒状をした人工骨材
を造粒するものであり、上記のように、セメントＣと共
に炭酸ガスＦを混入することで、炭酸ガスＦの作用によ
りセメントＣの硬化反応を速め、短時間でセメントＣを
核として土質分の成分を団粒して粒状の人工骨材Ｄを造
粒することができるのである。 [0007] If cement is simply mixed into construction waste containing the above-mentioned soil containing a large amount of water, only a brittle, low-strength cement containing cement is obtained.
It cannot be used as artificial aggregate as a substitute for natural aggregate such as sand and gravel used for construction. Therefore, in the present invention, the construction waste containing the soil component containing a large amount of water includes a water absorbing agent such as a polymer water absorbing agent (for example, a metal salt of an acrylic acid polymer, a polyglutamine-based amino acid polymer, etc.). although to stir by mixing cement with to water the water is added only not limited to) the can is this, thus, the water in the stirring device E
Construction waste material A containing a large amount of soil containing water, water absorbing agent B,
When the mixture C is added and stirred, carbon dioxide gas F is further supplied.
The mixture is supplied and stirred.
Using construction particles as the core, aggregated construction waste containing soil
Granulated), resulting in aggregates such as sand, gravel, etc.
And granulate with cement C as described above.
By mixing carbon dioxide gas F into the
The cement C in a short time
Agglomeration of the soil component as a core to produce a granular artificial aggregate D
It can be granulated.
【０００８】図１には本発明の人工骨材の製造の一例を
示すブロック図であり、水分を多量に含水した土質分を
含む建設廃材Ａを撹拌装置Ｅに投入すると共に撹拌装置
Ｅに吸水剤ＢとセメントＣとを投入し、撹拌装置Ｅで混
合撹拌する際に、更に炭酸ガスＦを供給して撹拌し、水
分を多量に含水した土質分を含む建設廃材Ａ中の水分を
吸水剤Ｂにより吸水させ、これにより含水していた多量
の水分の影響を受けることなく撹拌混合によりセメント
成分を核として吸水剤Ｂに水分が吸水された土質分を凝
集して団粒し、撹拌装置Ｅから取り出すことで砂、礫状
等の粒状をした人工骨材Ｄを形成するのである。上記の
ように、セメントＣと共に炭酸ガスＦを混入すること
で、炭酸ガスＦの作用によりセメントＣの硬化反応を速
め、短時間でセメントＣを核として土質分の成分を団粒
して粒状の人工骨材Ｄを造粒することができるのであ
る。ここで、建築廃材としての具体的な一例を示すと、
採石（砕石）場において採石（砕石）を水で洗浄した際
に発生する含水率４０％の採石（砕石）汚泥（つまり建
設廃材Ａ）を用いることができる。形成される人工骨材
Ｄとしては直径が０．３ｍｍ〜１０ｍｍのものである。 FIG. 1 is a block diagram showing an example of the production of the artificial aggregate of the present invention. A construction waste material A containing a soil component containing a large amount of water is charged into a stirrer E and water is absorbed by the stirrer E. When the agent B and the cement C are charged and mixed and stirred by the stirrer E, the carbon dioxide gas F is further supplied and stirred, and the water in the construction waste material A including the soil component containing a large amount of water is absorbed by the water absorbing agent. B, thereby aggregating and aggregating and aggregating the water-absorbing agent B to absorb and sediment the soil component with the cement component as a nucleus without being affected by a large amount of water contained therein. Thus, the artificial aggregate D in the form of sand, gravel or the like is formed by taking it out. above
Mixing carbon dioxide gas F together with cement C
The effect of carbon dioxide gas F accelerates the hardening reaction of cement C.
Aggregate the soil components in a short time with cement C as the core
To produce granulated artificial aggregate D.
You. Here, as a concrete example of construction waste ,
Quarrying (crushed stone) sludge (that is, construction waste material A) having a water content of 40% generated when the quarried (crushed) stone is washed with water at the quarry (crushed stone) site can be used. Artificial aggregate formed
D has a diameter of 0.3 mm to 10 mm.
【０００９】なお、水分を多量に含水した土質分を含む
建設廃材Ａに凝集剤を添加して泥状物から脱水ケーキの
大きな固まりを形成し、この脱水ケーキの大きな固まり
を破砕してセメントと混合することも考えられる。しか
しながら、このものにおいては一旦脱水ケーキの大きな
固まりを形成し、更に、これを破砕するという余分な工
程が必要であり、また、分離された水の処理が必要であ
り、また、セメント分と混合してセメント成分を核とし
て土質分を凝集して団粒するに当たって、土質分の水分
の調整が難しく、安定していて、なお所定の強度を発現
する人工骨材砂、礫状等の粒状をした人工骨材Ｄを製造
しにくいという問題があるが、本発明のように高分子吸
収剤Ｂを添加して水分を多量に含水した土質分を含む建
設廃材Ａを吸水することで、水分量の調整が容易で、安
定して所定の強度を発現することができるものである。A coagulant is added to the construction waste material A containing a soil component containing a large amount of water to form a large cake of dewatered cake from muddy material, and the large cake of this dewatered cake is crushed to form cement and Mixing is also conceivable. However, in this case, a large mass of the dehydrated cake is once formed, and further an extra step of crushing the cake is required. Further, treatment of separated water is required, and mixing with cement is also required. In coagulating and aggregating the soil with the cement component as the core, it is difficult to adjust the water content of the soil, and it is difficult to adjust the granularity of the artificial aggregate sand, gravel, etc., which is stable and still exhibits the predetermined strength. There is a problem that it is difficult to manufacture the artificial aggregate D which has been obtained, but the construction waste material A containing the soil component containing a large amount of water by adding the polymer absorbent B as in the present invention absorbs water. Is easy to adjust, and a predetermined strength can be stably exhibited.
【００１０】上記図１に示す実施形態において、水分を
多量に含水した土質分を含む建設廃材Ａ、吸水剤Ｂ、セ
メントＣを撹拌装置Ｅにほぼ同時に投入して撹拌混合し
てもよく、あるいは撹拌装置Ｅに水分を多量に含水した
土質分を含む建設廃材Ａ、吸水剤Ｂを先に投入して撹拌
した後、セメントＣを投入して再度撹拌混合してもよい
ものである。もちろん、いずれの場合にも撹拌に当たっ
て炭酸ガスを供給して撹拌するものである。 In the embodiment shown in FIG. 1, the construction waste material A, the water-absorbing agent B, and the cement C containing the soil component containing a large amount of water may be almost simultaneously introduced into the stirring device E and stirred and mixed. The construction waste material A containing the soil component containing a large amount of water and the water-absorbing agent B may be charged into the stirrer E first and stirred, and then the cement C may be charged and stirred and mixed again. Of course, in any case,
To supply and stir carbon dioxide gas.
【００１１】上記のようにして得た建設廃材を用いた人
工骨材Ｄは、従来投棄されていた土質分を含む建設廃材
をセメントと一体化した粒状物に構成することで、強度
の高い人工骨材となるものであり、この土質分とセメン
トとが一体化した粒状物を砂や礫等の天然骨材の代わり
に建設用の骨材として再利用することができ、建設廃材
の投棄処分コストがかからず（または低減でき）、資源
の再利用や環境面で有益である。The artificial aggregate D using the construction waste material obtained as described above is constructed by constructing the construction waste material containing soil components, which has been conventionally dumped, into granules integrated with cement, thereby providing a high-strength artificial waste material. It can be used as aggregate, and the granular material in which the soil and cement are integrated can be reused as aggregate for construction instead of natural aggregate such as sand and gravel. It is inexpensive (or can be reduced) and has resource recycling and environmental benefits.
【００１２】本発明の建設廃材を用いた人工骨材Ｄは上
記のようにセメントＣを核にして土質分が団粒している
ので強度が強く、砂や礫等の天然骨材の代わりに建設用
の骨材として様々な利用が可能であるが、特に、道路、
線路、空港、宅地、グランド等の支持地盤を形成するた
めの埋め戻し材や盛り土として使用することができる。
この場合、本発明の建設廃材を用いた人工骨材Ｄを細骨
材として用いる。図２は本発明の建設廃材を用いた人工
骨材Ｄを細骨材とし、砕石等の粗骨材Ｇ間に細骨材を充
填して支持地盤Ｈを形成した例が示してある。ここで、
建設廃材を用いた人工骨材Ｄは粗骨材間に充填されて砂
や礫等の天然の細骨材と同様の支持地盤を密に固める役
目をするものである。The artificial aggregate D using the construction waste material of the present invention has a high strength because the soil components are aggregated with the cement C as a core as described above, and is used instead of natural aggregate such as sand and gravel. Various uses are possible as aggregate for construction, especially for roads,
It can be used as a backfill material or embankment for forming a supporting ground such as a track, an airport, a residential land, and a ground.
In this case, the artificial aggregate D using the construction waste material of the present invention is used as fine aggregate. FIG. 2 shows an example in which an artificial aggregate D using the construction waste material of the present invention is used as fine aggregate, and fine aggregate is filled between coarse aggregates G such as crushed stones to form a support ground H. here,
The artificial aggregate D using the construction waste material is filled between the coarse aggregates and serves to densely solidify the supporting ground similar to natural fine aggregates such as sand and gravel.
【００１３】ところで、本発明においては、水分を多量
に含水した土質分を含む建設廃材に吸水剤を添加して水
分を吸水させると共にセメントを混入して撹拌する際
に、炭酸ガスを供給して撹拌して団粒することで形成し
た人工骨材Ｄを形成するので、多量の水分に影響されず
セメントの粒子を核にして土質分を含む建設廃材が団粒
され、このようにして団粒された人工骨材Ｄはセメント
分の一部が水と未反応の状態で存在する。一方、施工後
に人工骨材Ｄの吸水剤Ｂに吸水された水分は徐々に蒸発
等により排出されるが、この吸水剤Ｂから排水される水
分や、支持地盤に染み込む雨水や地下水が、人工骨材Ｃ
に含まれる上記水と未反応の状態で存在するセメント分
と反応して、これがバインダーとなって粒状をした人工
骨材Ｃ同士、あるいは人工骨材Ｃと他の祖骨材Ｅとが結
合され、骨材同士が結合された強度の強い支持地盤Ｈを
形成することができるものである。In the present invention, when a water-absorbing agent is added to construction waste containing a soil component containing a large amount of water to absorb water, cement is mixed and stirred .
The artificial aggregate D is formed by supplying carbon dioxide gas and agitating and aggregating the aggregated aggregate. Therefore, the construction waste material including the soil and the cement particles as a core is not affected by a large amount of moisture. The aggregated artificial aggregate D thus exists in a state where a part of the cement is not reacted with water. On the other hand, the water absorbed by the water-absorbing agent B of the artificial aggregate D after the construction is gradually discharged by evaporation or the like. However, the water drained from the water-absorbing agent B and the rainwater or groundwater permeating into the supporting ground become artificial bones. Material C
Reacts with the water and the cement component present in an unreacted state, and this serves as a binder to combine the granular artificial aggregates C with each other or the artificial aggregate C and the other aggregates E. And a strong supporting ground H in which the aggregates are joined to each other can be formed.
【００１４】[0014]
【発明の効果】上記の請求項１記載の本発明にあって
は、水分を多量に含水した土質分を含む建設廃材に吸水
剤を添加して吸水すると共にセメントを添加して撹拌す
る際に、炭酸ガスを供給して撹拌することでセメントを
核として土質分の成分を団粒して粒状の人工骨材を形成
するので、水分を多量に含水した土質分を含む建設廃材
に吸水剤を添加して水分を吸水し、多量に含まれる水の
影響を受けることなくセメントを核として土質分の成分
を団粒できるものであり、また、撹拌の際に炭酸ガスを
供給して撹拌することで、炭酸ガスの作用によりセメン
トの硬化反応を速め、短時間でセメントを核として土質
分の成分を団粒して粒状の人工骨材を形成することがで
き、この結果、従来、投棄するしか処分しようがなかっ
た水分を多量に含水した土質分を含む建設廃材を用いて
強度の強い粒状の人工骨材を簡単に形成することができ
るとともに製造時間の短縮化がはかれるものである。 According to the first aspect of the present invention,
, At the time of stirring by the addition of cement as well as water with the addition of water-absorbing agent of construction waste comprising the soil fraction has a large amount of water the water content, cement as a nucleus by stirring by supplying carbon dioxide soil The components are aggregated to form a granular artificial aggregate, so water is absorbed by adding a water-absorbing agent to construction waste containing soil containing a large amount of water, and the effect of the large amount of water is reduced. Cement can be used to aggregate the soil components without being subjected to carbon dioxide.
By supplying and stirring, cement
Speeds up the hardening reaction of the soil, and in a short time
The components of the ingredients can be aggregated to form granular artificial aggregate.
As a result, a high-strength granular artificial aggregate can be easily formed using construction waste containing soil containing a large amount of water, which had conventionally been only discarded , and the production time was reduced . It can be shortened.
【図１】本発明の建設廃材を用いた人工骨材の製造を示
すブロック図である。FIG. 1 is a block diagram showing the production of an artificial aggregate using the construction waste material of the present invention.
【図２】同上の建設廃材を用いた人工骨材を用いて形成
した支持地盤の要部拡大断面図である。 [Fig. 2] Formed using artificial aggregate using the same construction waste as above
It is a principal part expanded sectional view of the support ground which was made.
Ａ 建設廃材 Ｂ 吸水剤 Ｃ セメント Ｄ 人工骨材 A Construction waste material B Water absorbing agent C Cement D Artificial aggregate
───────────────────────────────────────────────────── フロントページの続き (72)発明者 前川 淳 神奈川県横浜市西区桜木町４丁目14番１ 号 株式会社三好商会内 (72)発明者 伊藤 二男 神奈川県平塚市夕陽ヶ丘61番７号松上産 業株式会社内 (56)参考文献 特開 平７−237949（ＪＰ，Ａ) 特開 平８−229593（ＪＰ，Ａ) 特開 平２−137750（ＪＰ，Ａ) 特開 平７−290097（ＪＰ，Ａ) 特開 平５−132942（ＪＰ，Ａ) 特開 昭50−75618（ＪＰ，Ａ) 特開 昭48−61364（ＪＰ，Ａ) 特開 平５−238791（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C04B 18/16 C04B 18/12 C04B 18/24 C04B 18/30 ──────────────────────────────────────────────────続 き Continued on the front page (72) Atsushi Maekawa 4-1-1, Sakuragicho, Nishi-ku, Yokohama-shi, Kanagawa Prefecture Inside Miyoshi Shokai Co., Ltd. (56) References JP-A-7-237949 (JP, A) JP-A-8-229593 (JP, A) JP-A-2-137750 (JP, A) JP-A-7-237 290097 (JP, A) JP-A-5-132942 (JP, A) JP-A-50-75618 (JP, A) JP-A-48-61364 (JP, A) JP-A-5-238791 (JP, A) (58) Field surveyed (Int. Cl. 7 , DB name) C04B 18/16 C04B 18/12 C04B 18/24 C04B 18/30
Claims (1)
廃材に吸水剤を添加して吸水すると共にセメントを添加
して撹拌する際に、炭酸ガスを供給して撹拌することで
セメントを核として土質分の成分を団粒して粒状の人工
骨材を形成することを特徴とする建設廃材を用いた人工
骨材の製造方法。 When a cement is added and agitated by adding a water-absorbing agent to a construction waste material containing a soil component containing a large amount of water, the cement is nucleated by supplying carbon dioxide gas and stirring. A method for producing an artificial aggregate using construction waste material, comprising forming a granular artificial aggregate by aggregating soil components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35727598A JP3038198B1 (en) | 1998-12-16 | 1998-12-16 | Manufacturing method of artificial aggregate using construction waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35727598A JP3038198B1 (en) | 1998-12-16 | 1998-12-16 | Manufacturing method of artificial aggregate using construction waste |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP3038198B1 true JP3038198B1 (en) | 2000-05-08 |
| JP2000178051A JP2000178051A (en) | 2000-06-27 |
Family
ID=18453289
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35727598A Expired - Fee Related JP3038198B1 (en) | 1998-12-16 | 1998-12-16 | Manufacturing method of artificial aggregate using construction waste |
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| Country | Link |
|---|---|
| JP (1) | JP3038198B1 (en) |
Cited By (1)
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|---|---|---|---|---|
| CN105801069A (en) * | 2016-02-25 | 2016-07-27 | 武汉大学 | Method for preparing high-fixed-carbon-content construction material product |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1309910C (en) * | 2003-08-12 | 2007-04-11 | 张政丰 | Ready-mixed soil construction method and apparatus thereof |
| EP2468695A1 (en) * | 2010-12-21 | 2012-06-27 | Mapei S.p.A. | Method for recycling concrete |
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1998
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105801069A (en) * | 2016-02-25 | 2016-07-27 | 武汉大学 | Method for preparing high-fixed-carbon-content construction material product |
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| Publication number | Publication date |
|---|---|
| JP2000178051A (en) | 2000-06-27 |
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