JPS6221921B2 - - Google Patents

Info

Publication number
JPS6221921B2
JPS6221921B2 JP8348979A JP8348979A JPS6221921B2 JP S6221921 B2 JPS6221921 B2 JP S6221921B2 JP 8348979 A JP8348979 A JP 8348979A JP 8348979 A JP8348979 A JP 8348979A JP S6221921 B2 JPS6221921 B2 JP S6221921B2
Authority
JP
Japan
Prior art keywords
main
asphalt
composite material
temperature
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
Application number
JP8348979A
Other languages
Japanese (ja)
Other versions
JPS569502A (en
Inventor
Saburo Myano
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.)
KITAGAWA DORO KK
Original Assignee
KITAGAWA DORO KK
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 KITAGAWA DORO KK filed Critical KITAGAWA DORO KK
Priority to JP8348979A priority Critical patent/JPS569502A/en
Publication of JPS569502A publication Critical patent/JPS569502A/en
Publication of JPS6221921B2 publication Critical patent/JPS6221921B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Road Paving Structures (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

この発明は、耐力のあるアスフアルト舗装道路
を確実、有効に施工することを目的としたアスフ
アルト道路舗装工法に関するものである。 この発明は針入度40゜〜20゜程度の固いアスフ
アルトを使用し、これに、200℃〜220℃の温度に
加熱した主骨材としての粒径約30mm〜20mmの単粒
度4号砕石と、200℃〜220℃の温度に加熱した細
骨材としての粒径2,2mm以下の粗目砂と、フイ
ラーとしての石粉とを配合して主体合材を作り、
その主体合材の温度を約180℃〜200℃の比較的高
温度に加熱してマスチツク状合材とし、そのマス
チツク状合材を、施工現場において約50mm厚さ
に、アスフアルトフイニツシヤにて敷均らし、主
骨材の突起部を鉄輪ローラで軽く押えて圧入さ
せ、その際、主骨材が大粒径にして、細骨材が小
粒径である関係と敷均らし時の合材分離現象によ
つて粗面となつた表面に、針入度80゜〜100゜の
アスフアルト、砕石、砂、石粉の合材を約10mm〜
15mmの厚さに被覆し、これを120℃程度の低温度
にて主骨材間の隙間を填充し、被覆して被覆層を
構成し、充分に輾圧締固めを行つて上下一体とし
て仕上げることを特徴とするものであつて、その
実施に際して、前記主体合材の配合を、
The present invention relates to an asphalt road paving method for reliably and effectively constructing a strong asphalt paved road. This invention uses hard asphalt with a penetration of about 40° to 20°, and adds single-grain size No. 4 crushed stone as the main aggregate heated to a temperature of 200°C to 220°C with a grain size of about 30mm to 20mm. , coarse sand with a grain size of 2.2 mm or less as fine aggregate heated to a temperature of 200°C to 220°C and stone powder as a filler are mixed to make a main composite material,
The main composite material is heated to a relatively high temperature of approximately 180°C to 200°C to form a mastic composite material, and the mastic composite material is spread at the construction site to a thickness of approximately 50 mm using an asphalt finisher. After leveling, the protrusions of the main aggregate are lightly pressed with a steel wheel roller and pressed in. At that time, the main aggregate has a large particle size and the fine aggregate has a small particle size, and the mixture at the time of leveling. A mixture of asphalt, crushed stone, sand, and stone powder with a penetration depth of 80° to 100° is applied to the surface, which has become rough due to the separation phenomenon, to approximately 10 mm or more.
Cover it to a thickness of 15 mm, fill the gaps between the main aggregates at a low temperature of about 120°C, cover it to form a covering layer, and complete the top and bottom as one piece by thoroughly compacting it. When implementing the method, the composition of the main material mixture is

【表】 とし、また表層填充被覆層の配合を【table】 In addition, the composition of the surface filler coating layer is

【表】 とし、または、前記主体合材の配合を、【table】 Or, the composition of the main material mixture is

【表】 とし、また表層填充被覆層の配合を、【table】 In addition, the composition of the surface filling coating layer is

【表】 としていて、充分耐力のあるアスフアルト舗装道
路を確実有効施工させることを目的とするもので
ある。 而して、その被覆層の合材は、骨材の大きさ、
種類及びその配合率、添加材等を変えることによ
つて仕上がりの表面を、厚さ約10mm〜15mmの薄層
で仕上げることができる。 一般に、アスフアルト舗装道路においては、ど
うすればブルドーザ等の履帯車または、超重量の
大型車を快適に走行させるかが課題になる。 アスフアルト舗装工法は、一般に、結合材であ
るアスフアルトと、砕石、砂等の骨材とを組合わ
せ結合することによつて成り立つものであるか
ら、結合材としてのアスフアルトに添加材或はフ
イラー等を混入することによつて結合力を最大に
発揮させ、また、骨材としては、強度的に最大と
なるように、組合わせ、そうした混合材料が容易
に現場施工できるようにすることである。 即ち、結合材としては、前記のように、添加材
としてのゴム或は樹脂を混入することが考えら
れ、又、フイラーとしての石粉、消石灰、セメン
ト等を多量に混入して、物理的に粘弾性の増加を
計り、マスチツク合材とすることも考えられる。 更に、骨材としては、強度を最大に発揮できる
ようにするために、粒径の大きい同じ大きさの単
粒度のものを使つて、砕石相互の噛合わせによる
内部摩擦が大きくなるようにし、且つ、砕石のも
つ弾力性をも活かすようにする。 細骨材としての砂は、砕石の噛合いによつて生
じる空隙を填充する量を考えればよい。その空隙
は、約25%と想定されるので、砂の量は25%位で
よく、且つ、内部摩擦を考えて粗目砂を使用す
る。 混合材については、夏季高温時においての自動
車交通のタイヤ圧による流動変形及びブルドーザ
等の履帯車の圧入損傷等が考えられるので、その
対策として、できるだけ固いアスフアルト(20〜
40)を使う。 而して、針入度20゜〜40゜といつた固いアスフ
アルトは、現場における混合材の敷均らしを考え
ると、その施工性からして高温度にする必要があ
る。 高温度合材は、混合の際に空気と熱とにより、
酸化作用を受け脆弱化する惧れがあり、フイラー
(石粉)を多く入れて、マスチツク配合材とし、
酸化作用を防止する。(石粉量は17%位が適当
で、それ以上になると施工性に問題がでてく
る。) マスチツク合材は、冬季の寒冷積雪時のタイ
ヤ、チエーン或はスパイクタイヤの摩耗に対して
も有効である。 それ故、合材の温度は基準として180℃〜200℃
とする。 主体合材の配合、骨材篩分粒度及び合成粒度は
次ぎの通りになる。
[Table] The purpose is to ensure the effective construction of asphalt paved roads with sufficient strength. Therefore, the composite material of the covering layer depends on the size of the aggregate,
By changing the type, blending ratio, additives, etc., the finished surface can be finished with a thin layer of about 10 mm to 15 mm thick. Generally, on asphalt-paved roads, the problem is how to make tracked vehicles such as bulldozers or extremely heavy large vehicles run comfortably. The asphalt pavement method is generally achieved by combining and bonding asphalt as a binding material with aggregate such as crushed stone or sand, so it is necessary to add additives or fillers to asphalt as a binding material. The aim is to maximize the bonding force by mixing the materials, and to combine them to maximize the strength of the aggregate, so that such mixed materials can be easily constructed on-site. That is, as a binder, as mentioned above, it is possible to mix in rubber or resin as an additive, and also to mix in a large amount of stone powder, slaked lime, cement, etc. as a filler to make it physically viscous. It is also conceivable to increase the elasticity and use a mastic composite material. Furthermore, in order to maximize the strength of the aggregate, single-grained aggregates with large grain sizes of the same size are used to increase the internal friction caused by the interlocking of the crushed stones. , to take advantage of the elasticity of crushed stone. The amount of sand used as fine aggregate should be considered to fill the voids created by the interlocking of crushed stones. Since the voids are assumed to be about 25%, the amount of sand should be about 25%, and coarse sand is used in consideration of internal friction. As for the mixed material, it is possible that it will be deformed due to the tire pressure of car traffic during high temperatures in summer, and that it will be damaged by press-in of tracked vehicles such as bulldozers, so as a countermeasure, use asphalt as hard as possible (20~
40). Therefore, hard asphalt with a penetration degree of 20° to 40° needs to be heated to a high temperature for its workability when considering the leveling of the mixed material on site. High-temperature materials are mixed by air and heat,
There is a risk that it will become brittle due to oxidation, so a large amount of filler (stone powder) is added to make it into a mastic compound.
Prevents oxidation. (The appropriate amount of stone powder is around 17%; if it exceeds that, problems will arise in workability.) Mastic composite material is also effective against wear of tires, chains, and spiked tires during cold and snowy winters. It is. Therefore, the temperature of the composite material is 180℃~200℃ as a standard.
shall be. The composition of the main material mixture, aggregate sieving particle size, and composite particle size are as follows.

【表】【table】

【表】【table】

【表】【table】

【表】 前記のような180℃〜200℃の高温合材を工事現
場に運搬し、アスフアルトフイニツシヤで敷均ら
し、主骨材の突起部を軽く鉄輪ローラにて圧入す
る。 これによつて、表面には凹凸ができて、粗面に
なるので、主骨材間の隙間を填充する。また、怪
適な車の走行に叶うようにするため薄い被覆層を
敷設する。 この填充被覆層は、厚さ10mm〜15mmとし、混合
材の骨材の大きさ、種類及び配合率、添加材を、
その路線の必要に応じて選択する。即ち、この被
覆層の薄層設定に当つて、滑り止め舗装、カラー
舗装、ゴム入り舗装、樹脂化アスフアルト舗装、
明色アスフアルト舗装等の道路舗装工法を施工す
ることができることになる。 この填充被覆層に使用するアスフアルトの針入
度は80゜〜100゜のものでよく、合材温度は主体
合材よりも低いし、120℃位の低温度とする。 主体合材は高温度であり、その上に、低温度の
填充被覆合材を敷均らせば、鉄輪ローラに附着す
ることなく、直ちに輾圧ができ、上下一体となつ
て充分輾圧締固めることができて、良好なる結果
が得られる。 次に、填充被覆層の混合材の実施例を次に示
す。
[Table] The above-mentioned high-temperature mixture of 180℃ to 200℃ is transported to the construction site, leveled with an asphalt finisher, and the protrusions of the main aggregate are lightly pressed in with an iron wheel roller. As a result, the surface becomes uneven and rough, which fills the gaps between the main aggregates. In addition, a thin coating layer is laid down to make it suitable for unsuitable vehicle driving. This filling coating layer has a thickness of 10 mm to 15 mm, and the size, type and blending ratio of the aggregate of the mixed material, additives, etc.
Select according to the needs of the route. That is, in setting the thin coating layer, anti-slip pavement, colored pavement, rubber-containing pavement, resinized asphalt pavement,
This means that road paving methods such as light-colored asphalt pavement can be constructed. The penetration degree of the asphalt used for this filling coating layer may be 80° to 100°, and the temperature of the composite material is lower than that of the main composite material, and is set at a low temperature of about 120°C. The main composite material is at a high temperature, and if you spread the low-temperature filling and coating composite material on top of it, it can be compressed immediately without adhering to the iron wheel roller, and the upper and lower parts are integrated and fully compressed. It can be hardened with good results. Next, examples of mixed materials for the filling coating layer will be shown below.

【表】【table】

【表】 このようにして、この発明によれば、充分耐力
のあるアスフアルト舗装道路を確実有効に施工す
ることができて頗る有用である。
[Table] In this way, according to the present invention, it is possible to reliably and effectively construct an asphalt paved road with sufficient strength, which is extremely useful.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図,第2図はこの発明の施工順序を示し、
図中、1は主骨材、2はマスチツクモルタル、3
は主体部、4は填充被覆層を示す。
Figures 1 and 2 show the construction order of this invention,
In the figure, 1 is the main aggregate, 2 is mastic mortar, and 3
4 indicates the main body portion, and 4 indicates the filling coating layer.

Claims (1)

【特許請求の範囲】[Claims] 1 針入度40゜〜20゜程度の固いアスフアルトを
使用し、これに、200℃〜220℃の温度に加熱した
主骨材としての粒径約30mm〜20mmの単粒度4号砕
石と、200℃〜220℃の温度に加熱した細骨材とし
ての粒径2,5mm以下の粗目砂と、フイラーとし
ての石粉とを配合して主体合材を作り、その主体
合材の温度を約180℃〜200℃の比較的高温度に加
熱してマスチツク状合材とし、そのマスチツク状
合材を、施工現場において約50mm厚さに、アスフ
アルトフイニツシヤにて敷均らし、主骨材の突起
部を鉄輪ローラで軽く押えて圧入させ、その際、
主骨材が大粒径にして、細骨材が小粒径である関
係と敷均らし時の合材分離現象によつて粗面とな
つた表面に、針入度80゜〜100゜のアスフアル
ト、砕石、砂、石粉の合材を約10mm〜15mmの厚さ
に被覆し、これを120℃程度の低温度にて主骨材
間の隙間を填充し、被覆して被覆層を構成し、充
分に輾圧締固めを行つて上下一体として仕上げる
ことを特徴とするアスフアルト道路舗装工法。
1 Hard asphalt with a penetration of about 40° to 20° is used, and to this is single-grain size No. 4 crushed stone with a grain size of about 30 mm to 20 mm as the main aggregate heated to a temperature of 200 ° C to 220 ° C, and 200 ° C. Coarse sand with a grain size of 2.5 mm or less as a fine aggregate heated to a temperature of ℃ to 220℃ is mixed with stone powder as a filler to make a main composite material, and the temperature of the main composite material is adjusted to about 180℃. The mastic mixture is heated to a relatively high temperature of ~200°C to form a mastic composite material, and the mastic composite material is leveled at the construction site to a thickness of approximately 50 mm using an asphalt finisher, and the protrusions of the main aggregate are removed. Press it lightly with a steel roller to press it in, and at that time,
The main aggregate has a large particle size and the fine aggregate has a small particle size, and the surface has become rough due to the separation of the mixture during leveling. A mixture of asphalt, crushed stone, sand, and stone powder is coated to a thickness of approximately 10 mm to 15 mm, and this is applied at a low temperature of about 120°C to fill the gaps between the main aggregates and cover to form a covering layer. , an asphalt road paving method characterized by thorough compaction and finishing the upper and lower parts as one piece.
JP8348979A 1979-07-03 1979-07-03 Paving method of asphalt road Granted JPS569502A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8348979A JPS569502A (en) 1979-07-03 1979-07-03 Paving method of asphalt road

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8348979A JPS569502A (en) 1979-07-03 1979-07-03 Paving method of asphalt road

Publications (2)

Publication Number Publication Date
JPS569502A JPS569502A (en) 1981-01-31
JPS6221921B2 true JPS6221921B2 (en) 1987-05-15

Family

ID=13803883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8348979A Granted JPS569502A (en) 1979-07-03 1979-07-03 Paving method of asphalt road

Country Status (1)

Country Link
JP (1) JPS569502A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6070606U (en) * 1983-10-21 1985-05-18 日瀝化学工業株式会社 bituminous pavement

Also Published As

Publication number Publication date
JPS569502A (en) 1981-01-31

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