CN1035204C - Soft joint-making constructing method for cement pavement longitudinal contraction joint - Google Patents
Soft joint-making constructing method for cement pavement longitudinal contraction joint Download PDFInfo
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- CN1035204C CN1035204C CN94103754A CN94103754A CN1035204C CN 1035204 C CN1035204 C CN 1035204C CN 94103754 A CN94103754 A CN 94103754A CN 94103754 A CN94103754 A CN 94103754A CN 1035204 C CN1035204 C CN 1035204C
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- plate
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- cement pavement
- cement
- longitudinal contraction
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Abstract
The present invention relates to a soft joint making constructing method for longitudinal contraction joints of cement pavements, which is characterized in that firstly, a caulking plate is pasted on the side wall of a cast cement pavement plate; then, an adjacent cement plate is cast; the caulking plate is made of the mixed polymer material of rubber and plastics; when the caulking plate is compressed by 20%, the compression stress is from 7 to 10MPa; a restoring rate is larger than 99%. The present invention has the advantages of centralizing traditional lancing, joint pouring and caulking maintenance work, finishing the work in one step, saving the labor and the expense, avoiding the early cracking of a pavement, and enhancing the pavement quality.
Description
The present invention relates to method of constructing roadway, especially a kind of soft joint-making construction method of cement pavement longitudinal contraction joint.
At present, domestic in the construction of cement road reduction of area seam, what generally use is bitumastic cementation of fissures method, and it is after the cement pavement making is finished, and adopts operations such as cutting, the cementation of fissures, filleting maintenance to realize.Because the return rate of bitumastic has only about 30%, therefore, cement pavement is when meeting thermal expansion, and it is extruded; When meeting cold contraction, it can't restore again, and the slit that stays is often filled by the sandstone lime-ash, has lost the effect of the seam that contracts.Facts have proved, the bitumastic cementation of fissures repeatedly flexible do with under constantly extruded, very fast (2-3) seam that contracts will lose efficacy, the phenomenon that seeps water is inevitable, the work of irritating again is also inevitable.And, because the inefficacy of the seam that contracts all can be pressed to expansion joint (E.J.) at the elongation on high temperature season road surface, cause the destruction of expansion joint (E.J.) easily.In addition, this method also has complicated operation, problems such as cost is too high, work under bad environment.
Main purpose of the present invention is in order to solve the existing deficiency of above-mentioned background technology, to propose a kind of soft joint-making construction method of cement pavement longitudinal contraction joint, make it simple to operate, and with low cost, the longitudinal contraction joint of making can guarantee its quality.
At the foregoing invention purpose, the present invention adopts a kind of soft joint-making construction method of cement pavement longitudinal contraction joint, it is characterized in that: the filleting plate is pasted to be placed on pour into a mould on the cement pavement plate sidewall that finishes, and then the cement pavement plate that is adjacent of cast, what described filleting plate adopted is the macromolecular material of rubber and plastic blend, it was compression 20% o'clock, and its compressive stress is 7～10MPa, and return rate is greater than 99%.
In sum, this job practices puts together traditional joint-cutting, the cementation of fissures, filleting maintenance work, once finishes, and has saving of labor, province's expense, can thoroughly avoid early crack, guarantees that the road surface is smooth-going, improves the advantage of road surface quality.Economic analysis shows that it can reduce construction costs more than 15%, has good economic benefit and social benefit.This construction method is suitable for the seam that vertically contracts of cement pavements such as highway, urban road, square terrace, road in airport, harbor district, reservoir area.
Accompanying drawing is a filleting plate schematic cross section.
Describe the present invention in detail below in conjunction with embodiment.
The soft joint-making construction of cement pavement longitudinal contraction joint is carried out in the cement pavement paving process, the side that the steps include: the cement pavement plate that at first will pour into a mould is removed clean, and the building asphalt of brushing fusing, then the filleting plate closely is attached to and has watered the plate side, the crack can not appear asking in attention, otherwise the cement sheeting that last cast again is adjacent infiltration phenomenon in slit will appear.
The filleting plate adopts butyronitrile rubber and polychloroethylene blended rubber and plastic macromolecular material; Its plate face is the light face, sees shown in the accompanying drawing, and filleting plate cross section is of a size of 5mm * 60mm, and the length of filleting plate is fixed according to the length of institute's casting cement plate.
The quality of filleting plate should reach the following table requirement.
| Sequence number | Title | Indication range | Remarks |
| 1 | Compressive stress | 7～10MPa | Compress at 20% o'clock |
| 2 | Return rate | ＞99％ | Compress at 20% o'clock |
| 3 | Hardness (Shao Shi) | ≥90 | |
| 4 | Cold resistance | ＞95% return rate | -40℃ |
| 5 | Heat resistance | ＞95% return rate | +70℃ |
| 6 | To the empty aging of heat | Compressive stress 7～10 10MPa return rate＞90 | 100℃×96h |
Claims (2)
1. the soft joint-making construction method of a cement pavement longitudinal contraction joint, it is characterized in that: the filleting plate is pasted to be placed on pour into a mould on the cement pavement plate sidewall that finishes, and then the plate that is adjacent of cast, what described filleting plate adopted is the macromolecular material of rubber and plastic blend, it was compression 20% o'clock, its compressive stress is 7～10MPa, and return rate is greater than 99%.
2. according to the soft joint-making construction method of the described cement pavement longitudinal contraction joint of claim 1, it is characterized in that: described filleting plate is an optic panel, and the material of employing is nitrile rubber and polychloroethylene blended rubber and plastic macromolecular material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94103754A CN1035204C (en) | 1994-04-13 | 1994-04-13 | Soft joint-making constructing method for cement pavement longitudinal contraction joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94103754A CN1035204C (en) | 1994-04-13 | 1994-04-13 | Soft joint-making constructing method for cement pavement longitudinal contraction joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1110349A CN1110349A (en) | 1995-10-18 |
| CN1035204C true CN1035204C (en) | 1997-06-18 |
Family
ID=5031258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94103754A Expired - Fee Related CN1035204C (en) | 1994-04-13 | 1994-04-13 | Soft joint-making constructing method for cement pavement longitudinal contraction joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1035204C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862545B (en) * | 2016-05-30 | 2018-06-08 | 皇玉彬 | The construction tool and construction method of a kind of mattess |
| CN110241675B (en) * | 2019-07-11 | 2021-03-30 | 江苏江达生态环境科技有限公司 | Construction method for construction joint and expansion joint of colored asphalt permeable concrete pavement |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2848929A (en) * | 1957-01-11 | 1958-08-26 | Richard N Tone | Concrete slab key-joint forming member |
| US3352217A (en) * | 1964-12-28 | 1967-11-14 | Harlan J Peters | Means for forming lines of weakness in cementitious floors, pavements and the like |
| US4861043A (en) * | 1986-03-31 | 1989-08-29 | Bechtel International Corporation | Pressure/compression concrete joint seal |
-
1994
- 1994-04-13 CN CN94103754A patent/CN1035204C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2848929A (en) * | 1957-01-11 | 1958-08-26 | Richard N Tone | Concrete slab key-joint forming member |
| US3352217A (en) * | 1964-12-28 | 1967-11-14 | Harlan J Peters | Means for forming lines of weakness in cementitious floors, pavements and the like |
| US4861043A (en) * | 1986-03-31 | 1989-08-29 | Bechtel International Corporation | Pressure/compression concrete joint seal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1110349A (en) | 1995-10-18 |
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