CN104074113B - Granular cushion stablized by breeze - Google Patents
Granular cushion stablized by breeze Download PDFInfo
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- CN104074113B CN104074113B CN201410298652.8A CN201410298652A CN104074113B CN 104074113 B CN104074113 B CN 104074113B CN 201410298652 A CN201410298652 A CN 201410298652A CN 104074113 B CN104074113 B CN 104074113B
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Abstract
The invention discloses a kind of breeze filling breeze and stablize granular cushion, it is characterised in that: the ovum rubble that raw material selection cobble is rolled, specification is: 0～4.75mm, 4.75～9.5mm, 9.5～19mm, 19～31.5mm tetra-kinds；The quality mixture ratio of granular cushion construction stablized by breeze: 0～4.75mm:4.75～9.5mm:9.5～19mm:19～31.5mm=26:12:22:40, forms compound；Breeze according to the outer admixture amount proportioning 4～5% of whole compound。The invention belongs to technological innovation, 1. reasonable in design, meet construction needs；2. workable, perfect, easy；3. water penetration is strong, water-resisting property good, meets code requirement；4. hardening respond well, surface gathers materials and is not easily taken away by wheel when driving；5. effectively cut off the underground between roadbed and road surface and the surface water, effectively reduce the reflection crack of semi-rigid type base。
Description
Technical field
The present invention relates to novel pavement compound, be specifically a kind of breeze filling breeze novel pavement compound of stablizing granular cushion。
Background technology
Development and growth along with China's Transportation Infrastructure Construction scale, the kind of engineering and construction task get more and more, all kinds of Construction Technologies constantly update, thus construction quality require more and more higher, to new technique, new technology, new material, new equipment demand be also growing。
When graded broken stone uses as bed course or flexbile base, there is protection earth roadbed by the erosion of the unfavorable natural conditions such as water and frost, 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 highway increases even up to saturated day by day, and overweight overloaded vehicle is growing on and on, and causes that pavement structure occurs in that destruction in various degree。For the severe situation that current road destroys, rely on the second belt freeway west section, Chengdu project LM1 contract section pavement engineering " breeze stablizes granular cushion and flexbile base applied research ", by adding breeze in graded broken stone, a kind of novel pavement compound composite type of exploitation, relatively ovum rubble fine aggregate and appropriate breeze mix ovum rubble coarse aggregate after graded broken stone mixture performance and strengthen the methods such as bed course site operation quality management and control, determine that the breeze mixing appropriate breeze is stablized graded broken stone and had better hardening property than single graded broken stone, express highway pavement is made to have a more solid and stable basis；Mix the underground and the surface water that granular cushion stablized by the breeze of appropriate breeze and flexbile base can effectively cut off between roadbed and road surface, effectively reduce the reflection crack of semi-rigid type base, and then improve service life of highway。
Summary of the invention
The performance of compound and its structure close relation, for graded broken stone, mixture structure determines the performance of compound, and graded broken stone is not owing to having the cementation of the cementitious matters such as cement, Calx or Colophonium, and the selection of its mixture structure type is even more important。Thickness according to compound is gathered materials ratio difference, can be divided into skeleton gap structure, framework dense structure, three kinds of physical arrangement types of suspension compact structure, and skeleton gap structure lock but leakiness harden, and suspension compact structure is closely knit but does not lock。It is an object of the invention to provide at this kind of breeze to stablize granular cushion, make the graded broken stone not only closely knit framework dense structure hardening but also locking。
The present invention is achieved in that granular cushion stablized by a kind of breeze of structure, it is characterised in that: the ovum rubble that raw material selection cobble is rolled, specification is: 0～4.75mm, 4.75～9.5mm, 9.5～19mm, 19～31.5mm tetra-kinds；The quality mixture ratio of granular cushion construction stablized by breeze: 0～4.75mm:4.75～9.5mm:9.5～19mm:19～31.5mm=26:12:22:40, forms compound；Breeze according to the outer admixture amount proportioning 4～5% of whole compound。
It is an advantage of the current invention that: the novel pavement compound composite type of granular cushion stablized by a kind of breeze filling breeze of the present invention, belongs to technological innovation, it is characterised in that: 1. reasonable in design, meet construction needs；2. perfect, easy, workable；3. water penetration is strong, water-resisting property good, meets code requirement；4. hardening respond well, surface gathers materials and is not easily taken away by wheel when driving；5. the reflection crack of technical barrier, the underground effectively cutting off between roadbed and road surface and the surface water, effectively minimizing semi-rigid type base that graded broken stone does not harden is efficiently solved。
Accompanying drawing explanation
Fig. 1 is that granular cushion formate gradation composition curve stablized by patent breeze of the present invention。
Detailed description of the invention
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, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments。Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention。
The present invention provides a kind of breeze to stablize granular cushion, and the ovum rubble that raw material selection cobble is rolled, specification is: 0～4.75mm, 4.75～9.5mm, 9.5～19mm, 19～31.5mm tetra-kinds；The quality mixture ratio of granular cushion construction stablized by breeze: 0～4.75mm:4.75～9.5mm:9.5～19mm:19～31.5mm=26:12:22:40, forms compound；Breeze according to the outer admixture amount proportioning 4～5% of whole compound。
Table 1 is that patent breeze of the present invention stablizes granular cushion and flexbile base formate gradation composition。
The performance of compound and its structure close relation, for graded broken stone, mixture structure determines the performance of compound, and graded broken stone is not owing to having the cementation of the cementitious matters such as cement, Calx or Colophonium, and the selection of its mixture structure type is even more important。Thickness according to compound is gathered materials ratio difference, can be divided into skeleton gap structure, framework dense structure, three kinds of physical arrangement types of suspension compact structure, and skeleton gap structure lock but leakiness harden, and suspension compact structure is closely knit but does not lock。A kind of method by adding breeze of the present invention, makes the graded broken stone not only closely knit framework dense structure hardening but also locking。
Framework dense structure is because degree of compaction is relatively big, shearing strength is stronger, it is prone to compaction moulding during construction and hardens, it it is a kind of ideal structure type, patent of the present invention: formed by adding breeze: granular cushion stablized by breeze and namely flexbile base adopts this kind of framework dense structure, make that graded broken stone is not only closely knit to harden but also lock, be unlikely to again to cause as adding the binding agents such as cement cracking。
Patent of the present invention: breeze stablize the broken pebble thickness selected by granular cushion and flexbile base gather materials all adopt sill may collection along the line cobble rolling form, breeze is provided by passing material supplier。Each shelves gather materials all undertaken sieving by " highway engineering gather materials testing regulations " (JTGE42-2005) requirement before use, the test such as density, crush values。According to " highway road surface construction technique normalizing " (JTJ034-2000) and relevant design documentation requirements, gather materials percent of pass according to different size, draw graded broken stone grading curve, finally determine the ratio that different size gathers materials, forming it into framework dense structure, concrete outcome is in Table 1, accompanying drawing 1。
Patent of the present invention: breeze is stablized granular cushion and flexbile base and finally determined, according to the grading curve of graded broken stone, the ratio that graded broken stone different size gathers materials and be: 0～4.75mm:4.75～9.5mm:9.5～19mm:19～31.5mm=26:12:22:40, mixes outward 4-5% breeze。
Chengdu two adopts the novel pavement compound composite type of this kind of ratio mix to start construction so far from bed course around west section project LM1 contract section, constructed granular cushion single width 10km, proved by field practice, this patent of invention: granular cushion stablized by breeze and flexbile base possesses good water penetration and water-resisting property, harden respond well, surface gathers materials and is not easily taken away by wheel when driving, efficiently solve graded broken stone not harden technical barrier, effectively cut off the underground between roadbed and road surface and the surface water, the advantages such as effective reflection crack reducing semi-rigid type base。
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention。The multiple amendment of these embodiments be will be apparent from for those skilled in the art, and generic principles defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments。Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty。
Claims (1)
1. granular cushion stablized by a breeze, it is characterised in that: the ovum rubble that raw material selection cobble is rolled, specification is: 0～4.75mm, 4.75～9.5mm, 9.5～19mm, 19～31.5mm tetra-kinds；The quality mixture ratio of granular cushion construction stablized by breeze: 0～4.75mm:4.75～9.5mm:9.5～19mm:19～31.5mm=26:12:22:40, forms compound；Breeze according to the outer admixture amount proportioning 4～5% of whole compound。
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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 | Granular cushion stablized by breeze |
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| CN201410298652.8A CN104074113B (en) | 2014-06-30 | 2014-06-30 | Granular cushion stablized by breeze |
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| CN104074113A CN104074113A (en) | 2014-10-01 |
| CN104074113B true CN104074113B (en) | 2016-06-22 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105442402A (en) * | 2015-11-09 | 2016-03-30 | 四川公路桥梁建设集团有限公司 | Stabilized graded broken stone hardcore doped with recycled powder |
| 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 noise type asphalt 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 noise type asphalt pavement |
| CN103242002A (en) * | 2013-05-09 | 2013-08-14 | 广州大学 | Cold-mix semi-flexible composite pavement material and preparation method thereof |
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