CN202688817U - Roller compaction rubber concrete road structure - Google Patents
Roller compaction rubber concrete road structure Download PDFInfo
- Publication number
- CN202688817U CN202688817U CN 201220392723 CN201220392723U CN202688817U CN 202688817 U CN202688817 U CN 202688817U CN 201220392723 CN201220392723 CN 201220392723 CN 201220392723 U CN201220392723 U CN 201220392723U CN 202688817 U CN202688817 U CN 202688817U
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- concrete
- roller compaction
- rubber concrete
- roadbed
- rubber
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Abstract
The utility model relates to a roller compaction rubber concrete road structure, and belongs to the field of traffic routes. The roller compaction rubber concrete road structure comprises a cushion layer / a native soil layer, a roadbed and a road surface from bottom to top. The road surface is a roller compaction rubber concrete road surface with the compressive strength not less than 30 megapascals (MPas). The roadbed is a native concrete roadbed or a roller compaction rubber concrete layer with the compressive strength of 15-20 MPas. In actual use, a suitable sand rate range and a water cement ratio are controlled, and roller compaction rubber concrete meeting requirements can be arranged. The roller compaction rubber concrete road structure has the advantages that compared with common concrete, improvements in anti-cracking ability, damping performance and anti-frost performance can reduce occurrence frequency of concrete cracks. Waste rubber can be utilized to reduce black pollution, meanwhile vibration and noise are reduced, road driving comfort is improved, and noise pollution of urban roads is reduced.
Description
Technical field
The utility model relates to a kind of rubber concrete road structure that rolls, and belongs to the traffic route field.
Background technology
Rubber concrete is a kind of new concrete that receives much concern in the world in recent years, and its basic preparation principle is that the rubber powder that makes with junked tire replaces part of coarse aggregates or the sand in the cement concrete.The waste tire rubber granule physical and chemical performance is stable, rough surface, and apparent density and water approach, and have than the better adhesion stress of fiber with cement slurry.The toughness of rubber concrete, deformability, shock resistance etc. all are significantly increased than ordinary concrete, but intensity also can reduce; Because rubber grain density only has 1000kg/m
3About, in casting process, there is the rubber grain On The Floating, cause rubber grain skewness in concrete, affect the effect of admixture rubber, employing rolls rubber concrete and then can address this is that.
It is few to roll the ordinary concrete water supply volume, and it is more dried thick to mix and stir material, and temperature control is simple, and speed of application is fast, uses morely in damming works, and theoretical research and construction technology be comparative maturity, but less in the application of the engineerings such as highway pavement.One of the main reasons is that this class engineering has higher requirements to concrete cracking resistance and adaptive deformation ability, and it is more to roll ordinary concrete aggregate consumption, and gel material content is less, and fragility is larger, and limit stretch value is less, and the adaptive deformation ability is relatively poor.
Roll rubber concrete and not only can realize the pollution-free digestion process of junked tire, and can take full advantage of the engineering property feature of rubber concrete, turn waste into wealth, produce huge economic benefit.Can obviously improve the braking quality, fragility and the fatigue cracking performance that roll ordinary concrete.
Along with the development of rubber industry and auto industry, a large amount of junked tires, rubber waste material are on the increase.According to statistics, China whenever is only the tire learies and just is no less than 1,500,000 tons, and with annual 10% speed increase.Waste old is a kind of macromolecular material of decomposing of being difficult under field conditions (factors), it is water insoluble, is insoluble in organic solvent, and the pollution to environment behind the landfill is larger, burn and also can bring atmosphere pollution, how processing the waste old that day by day increases has become a serious environmental problem.If can not reasonably utilize waste old, also can cause a kind of waste of the energy.It is a kind of better method of this solid waste of disposal and utilization that waste old is used for building trade.Nearly 13 billion cubic meters of the concrete year output of China just can solve banking up of junked tire as long as mix the 0.25kg rubber grain in every side's concrete at present.
Summary of the invention
For addressing the above problem, the utility model provides a kind of rubber concrete road structure that rolls.
The utility model is realized with following technical scheme: a kind of rubber concrete road structure that rolls comprises bottom-up bed course/plain soil layer, roadbed and road surface; Described road surface be compressive strength be not less than 30MPa roll the rubber concrete road surface.
Described roadbed is the plain concrete roadbed.
Described roadbed be compressive strength 15-20MPa roll the rubber concrete layer.
In actual the use, control suitable sand coarse aggregate ratio scope and water/binder ratio, the configurable satisfactory rubber concrete that rolls.
The beneficial effects of the utility model are: compare its cracking resistance of Common Concrete Pavement, damping performance, anti-freezing property and be significantly improved, can reduce distress in concrete and occur.Both can utilize waste old, and reduce " black " and pollute, again can damping noise reduction, improve the road surface running vehicle comfortableness and reduce the noise pollution of urban road.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: 1, road surface, 2, roadbed, 3, bed course/plain soil layer.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in drawings, roll the rubber concrete road structure by nethermost bed course/plain soil layer 3, middle roadbed 2 and the road surface 1 above the roadbed 2; The road surface be compressive strength be not less than 30MPa roll the rubber concrete road surface.Roadbed 2 rolls the rubber concrete roadbed for compressive strength 15MPa's.
The construction technique that rolls rubber concrete is:
(1) pour raw material into the mixer mix by the match ratio that rolls rubber concrete, mix and stir in the process, mix quality inspection and control should meet the regulation of table 1.
Quality inspection project and the frequency of table 1 roller compacted concrete mixture
(2) pave
1. before paving, the planeness of basic unit is carried out an acceptance inspection.
2. base course pave select Techniques of Large-sized Asphalt Concrete Spreader to carry out full width, complete thick formula paves, paving thickness is pressed loose laying depth 35cm according to stratification line, compacted depth 30cm control.
3. basic unit paves except satisfying " highway cement concrete pavement construction technique normalizing " technical requirements (JTGF30-2003)
2) the roller compacted concrete coefficient of loose laying should be spread by examination according to concrete mix, construction machinery and determine.Surface layer adopts highly dense solidity paver.
4. answer continuous feeding in the work progress, evenly pave, the speed of paving should by formula be calculated.Dead time surpasses regulation if pave, and then should process by construction joint.
5. after slightly flat by bulldozer, carry out again artificial smart flat, and note elevation control, the speed etc. that paves, guarantee that with this paving thickness is qualified, paving operation is continuous, paving effect is even.
(5) roll.
Claims (3)
1. one kind is rolled the rubber concrete road structure, comprises bottom-up bed course/plain soil layer (3), roadbed (2) and road surface (1); It is characterized in that described road surface be compressive strength be not less than 30MPa roll the rubber concrete road surface.
2. the rubber concrete road structure that rolls according to claim 1 is characterized in that described roadbed (2) rolls the rubber concrete roadbed for compressive strength 15-20MPa.
3. the rubber concrete road structure that rolls according to claim 1 is characterized in that described roadbed (2) is the plain concrete roadbed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392723 CN202688817U (en) | 2012-08-05 | 2012-08-05 | Roller compaction rubber concrete road structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392723 CN202688817U (en) | 2012-08-05 | 2012-08-05 | Roller compaction rubber concrete road structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202688817U true CN202688817U (en) | 2013-01-23 |
Family
ID=47544460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220392723 Expired - Fee Related CN202688817U (en) | 2012-08-05 | 2012-08-05 | Roller compaction rubber concrete road structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202688817U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104894969A (en) * | 2015-06-29 | 2015-09-09 | 北京大陆益通环保科技有限公司 | Bridge deck pavement block, bridge paved by same and manufacturing method of bridge deck pavement block |
| CN107805989A (en) * | 2017-09-21 | 2018-03-16 | 中国电建集团华东勘测设计研究院有限公司 | Temporary road rolling compacted concrete pavement reconstruction structure and its construction method |
| CN109797621A (en) * | 2019-01-17 | 2019-05-24 | 江苏瑞沃建设集团有限公司 | A kind of high-strength composite road surface and its construction technology |
-
2012
- 2012-08-05 CN CN 201220392723 patent/CN202688817U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104894969A (en) * | 2015-06-29 | 2015-09-09 | 北京大陆益通环保科技有限公司 | Bridge deck pavement block, bridge paved by same and manufacturing method of bridge deck pavement block |
| CN107805989A (en) * | 2017-09-21 | 2018-03-16 | 中国电建集团华东勘测设计研究院有限公司 | Temporary road rolling compacted concrete pavement reconstruction structure and its construction method |
| CN109797621A (en) * | 2019-01-17 | 2019-05-24 | 江苏瑞沃建设集团有限公司 | A kind of high-strength composite road surface and its construction technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20140805 |
|
| EXPY | Termination of patent right or utility model |