CN104652211A - Novel road surface mixture of stably-gradated broken-stone cushion layer doped with fine limestone aggregates - Google Patents
Novel road surface mixture of stably-gradated broken-stone cushion layer doped with fine limestone aggregates Download PDFInfo
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- CN104652211A CN104652211A CN201510027194.9A CN201510027194A CN104652211A CN 104652211 A CN104652211 A CN 104652211A CN 201510027194 A CN201510027194 A CN 201510027194A CN 104652211 A CN104652211 A CN 104652211A
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- limestone
- broken
- road surface
- novel road
- fine aggregate
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/02—Coherent pavings made in situ made of road-metal without binders
- E01C7/04—Coherent pavings made in situ made of road-metal without binders of broken stones, gravel, or like materials
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- Road Paving Structures (AREA)
Abstract
The invention discloses a novel road surface mixture of a stably-gradated broken-stone cushion layer doped with fine limestone aggregates. The novel road surface mixture is characterized in that coarse broken-pebble aggregates formed by rolling pebbles and fine aggregates formed by rolling limestone are selected; the specifications are as follows: the fine limestone aggregates are divided into two types, namely, 0-2.36mm and 2.36-4.75mm; the coarse broken-pebble aggregates are divided into three types, namely, 4.75-9.5mm, 9.5-19mm and 19-31.5mm; and the construction mixing ratio is as follows: the ratio of 0-2.36mm limestone to 2.36-4.75mm limestone to 4.75-9.5mm broken pebbles to 9.5-19mm broken pebbles to 19-26.5mm broken pebbles is 27 to 8 to 15 to 22 to 28. The novel road surface mixture disclosed by the invention has the advantages that underground and surface water between a roadbed and a road surface can be effectively partitioned, the novel road surface mixture is used between a semi-rigid base layer and an asphalt layer, and reflection cracks of the semi-rigid base layer can be effectively reduced.
Description
Technical field
The present invention relates to a kind of novel pavement mixed material, especially a kind of novel pavement compound of stable granular cushion of admixture limestone fine aggregate.
Background technology
Along with development and the growth of China's Transportation Infrastructure Construction scale, the kind of engineering and construction task get more and more, all kinds of Construction Technology is constantly updated, thus workmanship requires more and more higher, is also growing to the demand of new technology, new technology, new material, new equipment.
When graded broken stone uses as bed course, there is protection earth roadbed by the ability of water and erosion, the effectively diffusion-induced stress of the unfavorable natural conditions such as freezing, good heat-insulated character, water-resisting property and drainage etc.Along with the development of national economy, the actual traffic volume of speedway day by day increases and even reaches capacity, and overweight overloaded vehicle is growing on and on, the destruction in various degree that caused road structure to occur.For the severe situation that current road destroys, rely on Sichuan Nanchong-big bamboo-Liangping speedway LMB1 contract section pavement engineering " limestone fine aggregate and the application study of ovum rubble mixing graded broken stone in bed course or transition zone ", by adding limestone fine aggregate in graded broken stone, develop a kind of novel pavement mixed material composite type, relatively mix ovum rubble fine aggregate and the graded broken stone mixture performance of mixing limestone fine aggregate, the graded broken stone determining to mix limestone fine aggregate has the better pavement performance such as hardening property, make express highway pavement have one more solid, stable, the basis of hardening, mix fine aggregate limestone granular cushion and effectively can cut off underground between roadbed and road surface and the surface water, effectively can reduce the reflection crack of semi-rigid type base for transition zone between semi-rigid type base and asphalt surface course, and then improve the application life of highway.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of novel pavement compound of stable granular cushion of admixture limestone fine aggregate is provided at this; Underground between effective partition roadbed and road surface and the surface water, between semi-rigid type base and bitumen layer, effectively can reduce the reflection crack of semi-rigid type base.
The present invention realizes like this, construct a kind of novel pavement compound of stable granular cushion of admixture limestone fine aggregate, it is characterized in that: the ovum rubble coarse aggregate selecting cobble to roll and the fine aggregate of limestone rolling, specification is: limestone fine aggregate is divided into two kinds, is respectively 0 ~ 2.36mm, 2.36 ~ 4.75mm; Ovum rubble coarse aggregate is three kinds, is respectively 4.75 ~ 9.5mm, 9.5 ~ 19mm, 19 ~ 31.5mm.
According to the novel pavement compound of the stable granular cushion of admixture limestone fine aggregate of the present invention, it is characterized in that: mixed material graded broken stone coordination in works in bed course is: limestone 0 ~ 2.36mm: limestone 2.36 ~ 4.75mm: ovum rubble 4.75 ~ 9.5mm: ovum rubble 9.5 ~ 19mm: ovum rubble 19 ~ 26.5mm=27:8:15:22:28.
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, lime or pitch, and its performance is more outstanding on the impact of structure.To gather materials ratio difference according to the thickness of compound, skeleton gap structure structure, framework dense structure, suspension compact structure three kinds of physical arrangement types can be divided into.
Framework dense structure is because compactness is comparatively large, shear strength is comparatively strong, and be easy to compaction moulding during construction, be a kind of ideal structure types, patent of the present invention mixes limestone fine aggregate granular cushion or transition zone adopts this kind of framework dense structure.
The invention has the advantages that: the present invention patent discloses a kind of novel pavement compound composite type of stable granular cushion of admixture limestone fine aggregate, and its advantage is: 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 not easily taken away by wheel when driving; 5. the underground between roadbed and road surface and the surface water is effectively cut off,
for between semi-rigid type base and bitumen layer, the reflection crack of semi-rigid type base effectively can be reduced.
Accompanying drawing explanation
Fig. 1 is patent mixed material granular cushion formate gradation composition of the present invention
Fig. 2 is patent mixed material granular cushion formate gradation composition curve of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail, is clearly and completely described the technical scheme in the embodiment of the present invention, and obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The ovum rubble coarse aggregate that in the application of mixed material graded broken stone in bed course, raw material selection cobble is rolled and the fine aggregate of limestone rolling, specification is: limestone fine aggregate (0 ~ 2.36mm, 2.36 ~ 4.75mm), ovum rubble coarse aggregate (4.75 ~ 9.5mm, 9.5 ~ 19mm, 19 ~ 31.5mm) five kinds.The ovum rubble coarse aggregate of this kind of raw material rolling and limestone fine aggregate performance meets quality requirement and material source is widely distributed, cheap, meet construction demand.
2, according to claim, patent of the present invention: mixed material graded broken stone coordination in works in bed course is: limestone 0 ~ 2.36mm: limestone 2.36 ~ 4.75mm: ovum rubble 4.75 ~ 9.5mm: ovum rubble 9.5 ~ 19mm: ovum rubble 19 ~ 26.5mm=27:8:15:22:28.
Patent of the present invention: mix the broken pebble coarse aggregate selected by limestone fine aggregate granular cushion or transition zone, broken pebble coarse aggregate adopts cobble rolling along the line to form, and limestone fine aggregate adopts limestone rolling to form.Each shelves gather materials all undertaken sieving by " highway engineering gather materials testing regulation " (JTG E42-2005) requirement before use, the test such as density, crush values.According to " highway road surface construction technique normalizing " (JTJ 034-2000) and relevant design documentation requirements, to gather materials percent of pass according to different size, draw graded broken stone graduation curve, finally determine the ratio that different size gathers materials, make it form framework dense structure, concrete outcome is shown in accompanying drawing 1, accompanying drawing 2.
Patent of the present invention: limestone fine aggregate granular cushion or transition zone finally determine according to the graduation curve of graded broken stone the ratio that graded broken stone different size gathers materials and be: limestone (0 ~ 2.36mm: 2.36 ~ 4.75mm): ovum rubble (4.75 ~ 9.5mm:9.5 ~ 19mm:19 ~ 26.5mm)=27:8:15:22:28.
The novel pavement compound composite type relying on Sichuan Nanchong-big bamboo-Liangping speedway LMB1 contract section pavement engineering to try out experiment this kind of ratio mix starts construction so far from bed course, to construct granular cushion, proved by field practice, this patent of invention is mixed limestone fine aggregate granular cushion and is possessed good water permeability, water-resisting property, harden respond well, surface gathers materials and is not easily taken away by wheel when driving, underground between effective partition roadbed and road surface and the surface water, the advantages such as the reflection crack of semi-rigid type base can be effectively reduced for transition zone between semi-rigid type base and asphalt surface course.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (2)
1. the novel pavement compound of the stable granular cushion of an admixture limestone fine aggregate, it is characterized in that: the ovum rubble coarse aggregate selecting cobble to roll and the fine aggregate of limestone rolling, specification is: limestone fine aggregate is divided into two kinds, is respectively 0 ~ 2.36mm, 2.36 ~ 4.75mm; Ovum rubble coarse aggregate is three kinds, is respectively 4.75 ~ 9.5mm, 9.5 ~ 19mm, 19 ~ 31.5mm.
2. the novel pavement compound of the stable granular cushion of admixture limestone fine aggregate according to claim 1, is characterized in that: mixed material graded broken stone coordination in works in bed course is: limestone 0 ~ 2.36mm: limestone 2.36 ~ 4.75mm: ovum rubble 4.75 ~ 9.5mm: ovum rubble 9.5 ~ 19mm: ovum rubble 19 ~ 26.5mm=27:8:15:22:28.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510027194.9A CN104652211A (en) | 2015-01-20 | 2015-01-20 | Novel road surface mixture of stably-gradated broken-stone cushion layer doped with fine limestone aggregates |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510027194.9A CN104652211A (en) | 2015-01-20 | 2015-01-20 | Novel road surface mixture of stably-gradated broken-stone cushion layer doped with fine limestone aggregates |
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| CN104652211A true CN104652211A (en) | 2015-05-27 |
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| CN201510027194.9A Pending CN104652211A (en) | 2015-01-20 | 2015-01-20 | Novel road surface mixture of stably-gradated broken-stone cushion layer doped with fine limestone aggregates |
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Cited By (3)
| 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 | Stabilized graded broken stone hardcore doped with recycled powder |
| CN107311612A (en) * | 2017-06-28 | 2017-11-03 | 常州欣彬纺织品有限公司 | A kind of graded broken stone mixture |
| 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 |
Citations (4)
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|---|---|---|---|---|
| JPH01260101A (en) * | 1988-04-12 | 1989-10-17 | Nippon Hodo Co Ltd | Water-permeable false gravel road pavement |
| KR100812751B1 (en) * | 2006-11-15 | 2008-03-12 | 백성호 | Water permeable concrete pavement structure and construction method thereof |
| CN102021872A (en) * | 2010-09-20 | 2011-04-20 | 天津市市政工程研究院 | Vibration molding-based method for design of mix proportion of graded broken stones |
| CN103255696A (en) * | 2013-05-15 | 2013-08-21 | 长安大学 | Semi-rigid pavement structure and joint type graded broken stone mixture used in semi-rigid pavement structure |
-
2015
- 2015-01-20 CN CN201510027194.9A patent/CN104652211A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01260101A (en) * | 1988-04-12 | 1989-10-17 | Nippon Hodo Co Ltd | Water-permeable false gravel road pavement |
| KR100812751B1 (en) * | 2006-11-15 | 2008-03-12 | 백성호 | Water permeable concrete pavement structure and construction method thereof |
| CN102021872A (en) * | 2010-09-20 | 2011-04-20 | 天津市市政工程研究院 | Vibration molding-based method for design of mix proportion of graded broken stones |
| CN103255696A (en) * | 2013-05-15 | 2013-08-21 | 长安大学 | Semi-rigid pavement structure and joint type graded broken stone mixture used in semi-rigid pavement structure |
Non-Patent Citations (2)
| Title |
|---|
| 刘唐志: "硬质砂岩级配碎石应用研究", 《重庆交通大学学报（自然科学版）》 * |
| 马光超: "级配碎石过渡层沥青路面结构组合研究", 《沈阳建筑大学硕士论文》 * |
Cited By (3)
| 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 | Stabilized graded broken stone hardcore doped with recycled powder |
| CN107311612A (en) * | 2017-06-28 | 2017-11-03 | 常州欣彬纺织品有限公司 | A kind of graded broken stone mixture |
| 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 |
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Application publication date: 20150527 |
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