JPH04203105A - Road paving material - Google Patents
Road paving materialInfo
- Publication number
- JPH04203105A JPH04203105A JP33782590A JP33782590A JPH04203105A JP H04203105 A JPH04203105 A JP H04203105A JP 33782590 A JP33782590 A JP 33782590A JP 33782590 A JP33782590 A JP 33782590A JP H04203105 A JPH04203105 A JP H04203105A
- Authority
- JP
- Japan
- Prior art keywords
- paving material
- road paving
- waste
- sludge water
- asphalt
- 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
Links
- 239000000463 material Substances 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000010426 asphalt Substances 0.000 claims abstract description 14
- 239000010802 sludge Substances 0.000 claims abstract description 11
- 239000002699 waste material Substances 0.000 claims abstract description 8
- 239000004576 sand Substances 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000005406 washing Methods 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 abstract description 5
- 239000002440 industrial waste Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract 2
- 238000007664 blowing Methods 0.000 abstract 1
- 238000003801 milling Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Road Paving Structures (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はアスファルト系の道路舗装材に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an asphalt-based road paving material.
例えばコンクリートミキサー車を洗浄した際に排出され
る残存生コンクリート等の入った洗浄水は、これから砂
利と砂とが分離回収され、残ったスラッジ水を沈澱槽に
入れて上澄水が回収され、さらに該スラッジ水は高圧ポ
ンプでフィルタープレスに圧送され脱水処理されている
。そしてこのフィルタープレスより排出される固形状の
濾滓はそのまま廃棄すると公害を招くので産業廃棄物と
しての特別の処理を要しコストが掛るという問題があっ
た。For example, in the washing water containing residual raw concrete discharged when washing a concrete mixer truck, gravel and sand are separated and collected, the remaining sludge water is put into a settling tank, and supernatant water is collected. The sludge water is pumped to a filter press using a high-pressure pump and is dehydrated. If the solid filter slag discharged from the filter press is disposed of as it is, it causes pollution, and therefore requires special treatment as industrial waste, which is costly.
また、アスファルト系の道路舗装材においてその粗骨材
の空隙を埋めると共にアスファルトと一体となってその
性質を改善するため従来から石灰岩または火成岩などを
粉末にした石粉が混用されている。しかしこのようにア
スファルトに混合していた石粉としては従来、石灰岩の
ような天然に産出する岩石を微粉砕して用いるものであ
ったので、製造コストが掛ると共に資材として安定的に
得られないという問題点があった。In addition, in asphalt-based road paving materials, stone powder made from powdered limestone or igneous rock has traditionally been used in order to fill the voids in the coarse aggregate and improve its properties by integrating with the asphalt. However, the stone powder that has been mixed into asphalt has traditionally been made by pulverizing naturally occurring rocks such as limestone, which is expensive to manufacture and cannot be obtained stably as a material. There was a problem.
そこで、本発明は、上記スラッジ水から得られる産業廃
棄物を有効利用する途を開き廃棄コストを低減させると
同時に、道路舗装材としての製造コストを低減させるこ
とを目的とするものである。Therefore, an object of the present invention is to open the way to effectively utilize the industrial waste obtained from the sludge water and reduce the disposal cost, and at the same time, reduce the manufacturing cost as a road paving material.
本発明の道路舗装材は上記目的を達成するため、生コン
クリートの洗い残渣から砂利と砂とを分離除去して得ら
れたスラッジ水を°フィルタープ１／スにより脱水し、
その濾滓を乾燥することで得られた粉末状廃棄物をアス
フ１ルト混合物中に３〜・１０重量％混合してなるもの
である。In order to achieve the above object, the road paving material of the present invention dewaters the sludge water obtained by separating and removing gravel and sand from the washing residue of fresh concrete using a filter press.
The powdered waste obtained by drying the filter cake is mixed in an asphalt mixture in an amount of 3 to 10% by weight.
次に本発明の一実施例を説明する。 Next, one embodiment of the present invention will be described.
ミキサー車を洗浄した際に残存生コンクリートと共に排
出される洗浄水は、トロンメル分級機等により砂利分離
、砂分離が行なわれ、残ったスラッジ水は撹拌槽に入れ
て攪拌した後そのスラ・ンジ水をポンプにて吸みＪ−げ
、フィルタープレスに高圧力で圧送して水分を濾過する
。そして残った濾滓を天Ｉ」乾燥または熱風等の乾燥機
にて同形状に乾燥する。これをクラッシャーに通して小
塊状にし、さらにこれを必要に応しボールミル、ローラ
ミル等のミルに掛けて０．６ｒｎｒｎのふるい目通過量
１００％の微粉末に粉砕する。そしてこの粉末状廃棄物
を７スフ１°ルト混合物中に３〜１０重ｉ％混合するに
の粉末状廃棄物は、炭酸カルソウムおよびケイ砂を主成
分とするものご、？スフアルド・混合物中に配合された
粗骨材の空隙を埋めると共にアスファルトと−・体とな
−γでその強度、衝撃対抗性等の性質を改善する。即ち
、この粉末状廃棄物は？スフアルド混合物の増量材とし
で機能しアスファルトの所要量を減少させるだけでなく
、アスファルト舗装道路の強度を増太さ七、才、たアス
ファル（・の低温時におけるぜい弱化、老化をも防いで
品質を同士さセる。When cleaning the mixer truck, the cleaning water that is discharged together with the remaining live concrete is separated into gravel and sand using a trommel classifier, etc., and the remaining sludge water is put into a stirring tank and stirred, and then the sludge water is recycled. The water is sucked up by a pump and sent under high pressure to a filter press to filter out moisture. Then, the remaining filter cake is dried in the same shape using a dryer such as a hot air dryer or a hot air dryer. This is passed through a crusher to form a small lump, and if necessary, this is further passed through a mill such as a ball mill or a roller mill to be crushed into a fine powder having a 0.6rnrn sieve passage rate of 100%. The powdered waste to be mixed with 3 to 10% by weight in the 7-sulfur 1° mixture should be one whose main components are calcium carbonate and silica sand. It fills the voids in the coarse aggregate blended into the asphalt mixture, and improves its strength, impact resistance, and other properties with its body and gamma. In other words, what about this powdered waste? It not only acts as an extender for the asphalt mixture, reducing the amount of asphalt required, but also increases the strength of asphalt pavement by preventing the weakening and aging of asphalt at low temperatures. to each other.
（発明の効果）
このように本発明は生コン工場から排出されるスラッジ
水を脱水し乾燥することばより得られた粉末状廃棄物を
利用するものであるので従来のような廃棄−７ストが掛
らず、溶出のおそれがないので安全に廃棄ごきる。し、
かも、単なる増量材となるだけでなく道路舗装材として
の性質が改善される有益な効果がある。(Effects of the Invention) As described above, the present invention utilizes powdered waste obtained by dehydrating and drying sludge water discharged from a ready-mixed concrete factory. It can be safely disposed of as there is no risk of elution. death,
It not only serves as a filler but also has the beneficial effect of improving properties as a road paving material.
Claims (1)
て得られたスラッジ水をフィルタープレスにより脱水し
、その濾滓を乾燥することで得られた粉末状廃棄物をア
スファルト混合物中に３〜１０重量％混合してなる道路
舗装材。The sludge water obtained by separating and removing gravel and sand from the washing residue of fresh concrete is dehydrated using a filter press, and the powdered waste obtained by drying the filter dregs is mixed into an asphalt mixture with a concentration of 3 to 10% Road paving material made by mixing % by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33782590A JPH04203105A (en) | 1990-11-30 | 1990-11-30 | Road paving material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33782590A JPH04203105A (en) | 1990-11-30 | 1990-11-30 | Road paving material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04203105A true JPH04203105A (en) | 1992-07-23 |
Family
ID=18312319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33782590A Pending JPH04203105A (en) | 1990-11-30 | 1990-11-30 | Road paving material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04203105A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD958049S1 (en) | 2020-03-24 | 2022-07-19 | Husqvarna Ab | Wheel for robotic mower |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS637403A (en) * | 1986-06-25 | 1988-01-13 | 大有建設株式会社 | Stable treated road foundation material |
-
1990
- 1990-11-30 JP JP33782590A patent/JPH04203105A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS637403A (en) * | 1986-06-25 | 1988-01-13 | 大有建設株式会社 | Stable treated road foundation material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD958049S1 (en) | 2020-03-24 | 2022-07-19 | Husqvarna Ab | Wheel for robotic mower |
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