CN104074113A - Mineral powder stable graded broken stone cushion layer and flexible base layer - Google Patents
Mineral powder stable graded broken stone cushion layer and flexible base layer Download PDFInfo
- Publication number
- CN104074113A CN104074113A CN201410298652.8A CN201410298652A CN104074113A CN 104074113 A CN104074113 A CN 104074113A CN 201410298652 A CN201410298652 A CN 201410298652A CN 104074113 A CN104074113 A CN 104074113A
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- Prior art keywords
- breeze
- mineral powder
- base layer
- broken stone
- flexible base
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- 239000004575 stone Substances 0.000 title abstract description 21
- 229910052500 inorganic mineral Inorganic materials 0.000 title abstract 4
- 239000011707 mineral Substances 0.000 title abstract 4
- 239000000843 powder Substances 0.000 title abstract 3
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims description 17
- 102000002322 Egg Proteins Human genes 0.000 claims description 5
- 108010000912 Egg Proteins Proteins 0.000 claims description 5
- 210000004681 ovum Anatomy 0.000 claims description 5
- 238000009411 base construction Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 abstract description 12
- 238000010276 construction Methods 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 230000035699 permeability Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract 1
- 239000003673 groundwater Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000002352 surface water Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Road Paving Structures (AREA)
Abstract
The invention discloses a mineral powder-doped stable graded crushed stone cushion layer and a novel pavement mixture combination type of a flexible base layer, which is characterized in that: the raw materials are cobble-rolled crushed stones, and the specification is as follows: 0-4.75 mm, 4.75-9.5 mm, 9.5-19 mm, 19-31.5 mm; the mineral powder stable-graded broken stone cushion layer and the flexible base layer are constructed according to the following mixing ratio: 0-4.75 mm: 4.75-9.5 mm: 9.5-19 mm: 19-31.5 mm =26:12:22:40 to form a mixture; and adding 4-5% of mineral powder by mass in the whole mixture. The invention belongs to technical innovation, has reasonable design and meets the construction requirement; secondly, the operability is strong, perfect and simple; strong water permeability and good water resistance, and meets the standard requirements; the hardening effect is good, and the surface aggregate is not easy to be taken away by wheels in the driving process; underground and ground water between the roadbed and the road surface is effectively cut off, and reflection cracks of the semi-rigid base layer are effectively reduced.
Description
Technical field
The present invention relates to novel pavement compound, is specifically the novel pavement compound that a kind of breeze of admixture breeze is stablized granular cushion and flexbile base.
Background technology
Development and growth along with China's Transportation Infrastructure Construction scale, the kind of engineering and construction task are more and more, all kinds of Construction Technologies are constantly updated, more and more higher thereby workmanship requires, and to the demand of new technology, new technology, new material, new equipment, are also growing.
When graded broken stone is used as bed course or flexbile base, there is the earth roadbed erosion that is not subject to water and the unfavorable natural conditions such as freezing of protection, diffusion-induced stress effectively, the ability of good heat-insulated character, water-resisting property and drainage.Along with the development of national economy, the actual traffic volume of speedway day by day increases even and reaches capacity, and overweight overloaded vehicle is growing on and on, and causes road structure to occur destruction in various degree.Severe situation for current pavement destruction, rely on Chengdu second to stablize granular cushion and flexbile base application study > > around speedway west section, city project LM1 contract section pavement engineering < < breeze, by add breeze in graded broken stone, develop a kind of novel pavement compound composite type, relatively ovum rubble fine aggregate and appropriate breeze mix after ovum rubble coarse aggregate graded broken stone mixture performance and strengthen the methods such as bed course site operation quality management and control, definite breeze that mixes appropriate breeze is stablized graded broken stone and is had better hardening property than single graded broken stone, make express highway pavement there is a more solid and stable basis, granular cushion stablized by the breeze that mixes appropriate breeze and flexbile base can effectively cut off the underground and surface water between roadbed and road surface, effectively reduces the reflection crack of semi-rigid type base, and then improves the application life of highway.
Summary of the invention
The performance of compound and its structure close relation, for graded broken stone, mixture structure has determined the performance of compound, and graded broken stone is not owing to there is no the cementation of the cementitious matters such as cement, lime or pitch, and the selection of its mixture structure type is even more important.According to the thickness of the compound ratio difference of gathering materials, can be divided into skeleton gap structure, framework dense structure, three kinds of physical arrangement types of suspension compact structure, skeleton gap structure down lock but leakiness harden, the closely knit but down lock not of suspension compact structure.The object of the invention is to provides a kind of breeze to stablize granular cushion and flexbile base at this, makes not only closely knit hardening but also the framework dense structure of down lock of graded broken stone.
The present invention realizes like this, construct a kind of breeze and stablize granular cushion and flexbile base, it is characterized in that: raw material selection cobble is rolled the ovum rubble forming, and specification is: tetra-kinds of 0～4.75mm, 4.75～9.5mm, 9.5～19mm, 19～31.5mm; Granular cushion stablized by breeze and Flexible Base Construction match ratio is: 0～4.75mm:4.75～9.5mm:9.5～19mm:19～31.5mm=26:12:22:40, forms compound; According to the breeze of the outer admixture amount proportioning 4～5% of whole compound.
The invention has the advantages that: the breeze of a kind of admixture breeze of the present invention is stablized the novel pavement compound composite type of granular cushion and flexbile base, belongs to technological innovation, it is characterized in that: 1. reasonable in design, meet construction needs; 2. perfect, easy, workable; 3. water permeability is strong, water-resisting property good, meets code requirement; 4. harden respond well, surface gathers materials and is difficult for by wheel, being taken away when driving; 5. efficiently solve technical barrier that graded broken stone do not harden, effectively cut off the underground and surface water between roadbed and road surface, effectively reduce the reflection crack of semi-rigid type base.
Accompanying drawing explanation
Fig. 1 is that patent breeze of the present invention is stablized granular cushion and flexbile base formate gradation composition curve.
The specific embodiment
Below in conjunction with accompanying drawing 1, the present invention is described in detail, and the technical scheme in the embodiment of the present invention is clearly and completely described, and obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The invention provides a kind of breeze and stablize granular cushion and flexbile base, raw material selection cobble is rolled the ovum rubble forming, and specification is: tetra-kinds of 0～4.75mm, 4.75～9.5mm, 9.5～19mm, 19～31.5mm; Granular cushion stablized by breeze and Flexible Base Construction match ratio is: 0～4.75mm:4.75～9.5mm:9.5～19mm:19～31.5mm=26:12:22:40, forms compound; According to the breeze of the outer admixture amount proportioning 4～5% of whole compound.
Table 1 is stablized granular cushion and flexbile base formate gradation composition for patent breeze of the present invention.
The performance of compound and its structure close relation, for graded broken stone, mixture structure has determined the performance of compound, and graded broken stone is not owing to there is no the cementation of the cementitious matters such as cement, lime or pitch, and the selection of its mixture structure type is even more important.According to the thickness of the compound ratio difference of gathering materials, can be divided into skeleton gap structure, framework dense structure, three kinds of physical arrangement types of suspension compact structure, skeleton gap structure down lock but leakiness harden, the closely knit but down lock not of suspension compact structure.The present invention a kind of by adding the method for breeze, make not only closely knit hardening but also the framework dense structure of down lock of graded broken stone.
Framework dense structure is because compactness is large, shear strength is stronger, during construction, be easy to compaction moulding and harden, it is a kind of comparatively desirable structure types, patent of the present invention: form by adding breeze: granular cushion stablized by breeze and flexbile base adopts this kind of framework dense structure, make not only closely knit hardening but also down lock of graded broken stone, be unlikely to again picture and add the cementing agents such as cement and cause cracking.
Patent of the present invention: breeze is stablized granular cushion and the selected broken pebble thickness of flexbile base and gathered materials and all adopt the cobble rolling of river along the line dam collection to form, and breeze is provided by passing material supplier.Each grade tests such as testing regulation > > (JTG E42-2005) requirement is sieved, density, crush values of all gathering materials by < < highway engineering before use of gathering materials.According to < < highway road surface construction technique normalizing > > (JTJ 034-2000) and relevant design documentation requirements, according to the different size percent of pass that gathers materials, draw graded broken stone graduation curve, finally determine the ratio that different size gathers materials, make it form framework dense structure, concrete outcome in Table 1, accompanying drawing 1.
Patent of the present invention: granular cushion stablized by breeze and flexbile base has finally determined that according to the graduation curve of graded broken stone the ratio that graded broken stone different size gathers materials is: 0～4.75mm:4.75～9.5mm:9.5～19mm:19～31.5mm=26:12:22:40, mixes 4-5% breeze outward.
Er Rao west section, Chengdu project LM1 contract section adopts the novel pavement compound composite type of this kind of ratio mix to start construction so far from bed course, granular cushion single width 10km has constructed, by field practice, prove, this patent of invention: granular cushion stablized by breeze and flexbile base possesses good water permeability and water-resisting property, harden respond well, surface gathers materials and is difficult for by wheel, being taken away when driving, efficiently solve the graded broken stone technical barrier that do not harden, effectively cut off the underground and surface water between roadbed and road surface, effectively reduce the advantages such as reflection crack of semi-rigid type base.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (1)
1. breeze is stablized granular cushion and a flexbile base, it is characterized in that: raw material selection cobble is rolled the ovum rubble forming, and specification is: tetra-kinds of 0～4.75mm, 4.75～9.5mm, 9.5～19mm, 19～31.5mm; Granular cushion stablized by breeze and Flexible Base Construction match ratio is: 0～4.75mm:4.75～9.5mm:9.5～19mm:19～31.5mm=26:12:22:40, forms compound; According to the breeze of the outer admixture amount proportioning 4～5% of whole compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410298652.8A CN104074113B (en) | 2014-06-30 | 2014-06-30 | Mineral powder stable graded broken stone cushion layer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410298652.8A CN104074113B (en) | 2014-06-30 | 2014-06-30 | Mineral powder stable graded broken stone cushion layer |
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| CN104074113A true CN104074113A (en) | 2014-10-01 |
| CN104074113B CN104074113B (en) | 2016-06-22 |
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| CN201410298652.8A Active CN104074113B (en) | 2014-06-30 | 2014-06-30 | Mineral powder stable graded broken stone cushion layer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442402A (en) * | 2015-11-09 | 2016-03-30 | 四川公路桥梁建设集团有限公司 | Recycled powder stable graded broken stone cushion layer |
| CN107245921A (en) * | 2017-06-20 | 2017-10-13 | 河南城建学院 | A kind of large grain size asphalt gravel road surface flexbile base material |
| CN109267442A (en) * | 2018-10-17 | 2019-01-25 | 吴江市建设工程质量检测中心有限公司 | The proportion design method of vibration moulding graded broken stone |
| CN112982054A (en) * | 2019-12-14 | 2021-06-18 | 浙江建腾建设有限公司 | Reinforcing treatment construction method for specific geological rainflower stone gravel layer roadbed in Nanjing area |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03290504A (en) * | 1990-04-06 | 1991-12-20 | Showa Rekisei Kogyo Kk | Paving method and diotextile for pavement |
| CN1369453A (en) * | 2002-03-22 | 2002-09-18 | 北京市公路局公路设计研究院 | Asphalt-mastic-broken stone mixture using steel slag as coarse aggregate and its application |
| CN102584111A (en) * | 2012-01-16 | 2012-07-18 | 武汉钢铁(集团)公司 | Steel slag asphalt graded crushed rock mixture |
| CN102691244A (en) * | 2012-05-30 | 2012-09-26 | 中铁四局集团有限公司 | Construction method of asphalt noise pavement |
| CN103242002A (en) * | 2013-05-09 | 2013-08-14 | 广州大学 | Cold-mix semi-flexible composite pavement material and preparation method thereof |
-
2014
- 2014-06-30 CN CN201410298652.8A patent/CN104074113B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03290504A (en) * | 1990-04-06 | 1991-12-20 | Showa Rekisei Kogyo Kk | Paving method and diotextile for pavement |
| CN1369453A (en) * | 2002-03-22 | 2002-09-18 | 北京市公路局公路设计研究院 | Asphalt-mastic-broken stone mixture using steel slag as coarse aggregate and its application |
| CN102584111A (en) * | 2012-01-16 | 2012-07-18 | 武汉钢铁(集团)公司 | Steel slag asphalt graded crushed rock mixture |
| CN102691244A (en) * | 2012-05-30 | 2012-09-26 | 中铁四局集团有限公司 | Construction method of asphalt noise pavement |
| CN103242002A (en) * | 2013-05-09 | 2013-08-14 | 广州大学 | Cold-mix semi-flexible composite pavement material and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442402A (en) * | 2015-11-09 | 2016-03-30 | 四川公路桥梁建设集团有限公司 | Recycled powder stable graded broken stone cushion layer |
| CN107245921A (en) * | 2017-06-20 | 2017-10-13 | 河南城建学院 | A kind of large grain size asphalt gravel road surface flexbile base material |
| CN109267442A (en) * | 2018-10-17 | 2019-01-25 | 吴江市建设工程质量检测中心有限公司 | The proportion design method of vibration moulding graded broken stone |
| CN112982054A (en) * | 2019-12-14 | 2021-06-18 | 浙江建腾建设有限公司 | Reinforcing treatment construction method for specific geological rainflower stone gravel layer roadbed in Nanjing area |
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| Publication number | Publication date |
|---|---|
| CN104074113B (en) | 2016-06-22 |
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