CN102021872A - Vibration molding-based method for design of mix proportion of graded broken stones - Google Patents
Vibration molding-based method for design of mix proportion of graded broken stones Download PDFInfo
- Publication number
- CN102021872A CN102021872A CN 201010287217 CN201010287217A CN102021872A CN 102021872 A CN102021872 A CN 102021872A CN 201010287217 CN201010287217 CN 201010287217 CN 201010287217 A CN201010287217 A CN 201010287217A CN 102021872 A CN102021872 A CN 102021872A
- Authority
- CN
- China
- Prior art keywords
- graded broken
- broken stone
- gathering materials
- grating
- broken stones
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Road Paving Structures (AREA)
Abstract
The invention relates to a vibration molding-based method for design of mix proportion of graded broken stones, comprising the following steps: (1) selecting raw materials: selecting limestone as the base stone of the graded broken stones, adopting a reaction crusher to roll till the technical requirements are met; and selecting drinking water as added water for the mixture of the graded broken stones; (2) preparing optimized graded broken stones; (3) adding the drinking water into the graded broken stones in the step (2) according to 4-5% of water content to prepare a plurality of groups of mixtures of the graded broken stones; (4) carrying out vibrating compaction on the groups of mixtures of the graded broken stones obtained in the step (3), and determining the optimum water content and maximum dry density of the mixture of the graded broken stones under a vibrating compaction test mode; and (5) verifying the performances: under the conditions of the optimum water content and the maximum dry density determined by the step (4) and 98% of compaction degree, adopting a vibration molding test method to determine the California bearing ratio (CBR) of a test piece. The mixtures of the graded broken stones designed by adopting the method have the characteristics that the strength is high, the total quality is high, the construction is simple and convenient and the cost is low.
Description
Technical field
The invention belongs to the highway construction technical field, particularly a kind of mixing proportion design method based on the vibration moulding graded broken stone.
Background technology
Semi-rigid pavement has been brought into play important function as most important Pavement Structures of High Type Highways form in China's expressway construction.Semi-rigid asphalt pavement structure, material method for designing and construction technique normalizing are gradually improved.But in use some intrinsic shortcoming and defect of semi-rigid asphalt pavement have caused the large-scale early damage phenomenon of China's speedway.Particularly newly-built speedway does not generally reach pavement design desired design period.A large amount of application with studies show that the disease that causes because of the semi-rigid type base factor mainly contains: 1. road reflection crack; 2. closely knit semi-rigid type base makes hydropexis in basic unit's end face, causes under the vehicular load effect forming flowing pressure, causes the washing away of basic unit, purt slurry.3. early fatigue destruction very easily appears in semi-rigid pavement under heavy duty, overload effect.
To the major measure that reduces the semi-rigid pavement crack be both at home and abroad at present: 1. reasonable composition design by semi-rigid sub-base material is carried out, as adjust binder consumption and ratio, increase coarse aggregate content and strict design grating, temperature contracts and the drying shrinkage effect so that reduce as much as possible, increases the anti-cracking performance of semi-rigid base course energy.But this method still can not fundamentally be eliminated the cracking of semi-rigid sub-base material.2. by increasing thickness of bituminous surface to prevent the base course reflection crack.International experience is: asphalt surface course is increased to 15～25cm, rather than like that only need 8～10cm than the sake layer by the fatigue stress analysis.More domestic test roads show that during less than 18cm, semi-rigidity bituminous pavement crack might be comparatively outstanding in thickness of bituminous surface.Yet,, uneconomical again economically as preventing by the thicker asphalt surface course of setting and reducing the crack.Cause basic design philosophy to restrict the application and the development of flexible pavement for the construction costs of the flexible pavement of increase bitumen layer thickness.3. the reflection crack of starting with and preventing and reduce semi-rigidity bituminous sub-surface from structure itself.Be provided with between asphalt surface course and semi-rigid type base that one deck modulus of elasticity is low, to absorb the semi-rigid type base crack, present this method is an engineering measure of using morely in the project practices at home and abroad to the material of good toughness as stress absorbing layer.Intermediate layer material commonly used has: geotextile, rubber asphalt seal and stress absorption film.Once adopted the maltha concrete as the intermediate layer both at home and abroad, practice shows, it is to preventing under the weather cold conditions and to reduce reflection crack comparatively effective that successful key is the choose reasonable of pitch thickness and intermediate layer thickness.And geotextile and stress absorption film intermediate layer are very thin, and drainage effect is bad.4. with surface layer under the asphalt macadam conduct.But, facts have proved that this method is preventing that this effect aspect two of reflection crack, draining is all bad.Therefore seldom adopt this method in the middle of the reality as the measure that prevents reflection crack.5. not having in conjunction with the punishment pellet at home and abroad is the more general road materials of a kind of application, is widely used in the basic unit and the subbase of flexible pavement, and what be used for basic unit generally is the macadam of high-quality.
Graded broken stone a kind of important materials form as flexbile base in China's expressway construction just began one's study and uses from the seventies in 20th century.The major advantage of graded broken stone has: 1. absorb and subdued the semi-rigid type base point stresses, reduce and delayed the generation of reflection crack.2. graded broken stone base can play the effect of surface drainage basic unit, and to the further high grade highway pavement using character that improves, it is very important to increase the service life.3. as the graded broken stone deck being set on semi-rigid type base, graded broken stone easily obtains high compactness, and the substratum favourable crushed rock base course thereon mechanical property of higher stiffness gives full play to simultaneously.But rigidity, the intensity of graded broken stone base are lower than semi-rigid type base, bigger with time channel table flexure, cause that researcher and designer are consistent to worry that the supporting capacity of graded broken stone is not enough, so graded broken stone is few in the application of China's speedway at present, the experience of accumulation is also fewer.
The measure in the above several minimizing semi-rigid pavements crack of contrast, first method can not fundamentally be eliminated the cracking of semi-rigid sub-base material.Second method is uneconomical again economically.The third method, maltha concrete just prevent under the weather cold conditions and to reduce reflection crack comparatively effective, and the cost height, and drainage effect is bad, and geotextile and stress absorption film intermediate layer are very thin, and drainage effect is also bad.The 4th kind of method preventing that this effect aspect two of reflection crack, draining is all bad.By contrast, the 5th kind of method slow down aspect reflection crack, draining and the cost with the obvious advantage.And the rigidity of graded broken stone base, intensity are lower than semi-rigid type base, and is bigger with time channel table flexure, causes that researcher and designer are consistent to worry that the bearing capacity of graded broken stone is not enough, thereby limited the application of graded broken stone in China's speedway.So, on the graded broken stone method for designing,, exploration becomes promotion graded broken stone key in application break-through point in speedway thereby effectively improving the method for designing of rigidity reduction road table flexure on the basis that keeps original performance of graded broken stone than conventional method.
Adopt semi-rigid sub-base material such as vibration moulding method design cement stabilized macadam and two-ash broken stones, a large amount of design results and construction experience show, hitting the solid yardage method with conventional heavy-duty compares, vibratory drilling method design semi-rigid sub-base material is under the prerequisite of framework compact grating, the density of compound improves 4%～6%, intensity increases substantially, and the more important thing is that the effect that density improves can realize under the situation that does not increase construction cost fully at the scene.Appearing as the new graded broken stone method for designing of exploitation and improving bearing capacity of semi-rigid sub-base material technology such as employing vibration moulding method design cement stabilized macadam and two-ash broken stones provides the important theory foundation.According to this thinking, research one cover is applicable to method for designing, road structure type and the construction technology of graded broken stone vibration moulding, thereby promotes that the application of graded broken stone in China's speedway is very significant.
Summary of the invention
The object of the present invention is to provide a kind of mixing proportion design method based on the vibration moulding graded broken stone, this method for designing is based on vibration formation method, by composition, molding mode, grating design and match ratio design to the graded broken stone material, the graded broken stone match ratio of more being optimized, the graded broken stone that adopts the design's method to obtain have intensity height, oeverall quality height, easy construction, advantage that cost is low.
A kind of mixing proportion design method based on the vibration moulding graded broken stone is characterized in that: the step of this method for designing is:
(1), raw material are selected:
Selecting limestone is the graded broken stone base building stones, and adopts impact breaker to be rolling to meet technical requirements;
Select drinking water to join the interpolation water of macadam-aggregate mix for collection;
(2), the graded broken stone of preparation optimization:
The grating of the graded broken stone of this optimization is: aggregate size is less than accounting for grating 100% of the gross mass of gathering materials gathering materials of 31.5mm; Aggregate size is less than accounting for grating 75～85% of the gross mass of gathering materials gathering materials of 19mm; Aggregate size is less than accounting for grating 44～54% of the gross mass of gathering materials gathering materials of 9.5mm; Aggregate size is less than accounting for grating 28～38% of the gross mass of gathering materials gathering materials of 4.75mm; Aggregate size is less than accounting for grating 17～27% of the gross mass of gathering materials gathering materials of 2.36mm; Aggregate size is less than accounting for grating 8～14% of the gross mass of gathering materials gathering materials of 0.6mm; Aggregate size is less than accounting for grating 0～5% of the gross mass of gathering materials gathering materials of 0.075mm;
(3), in the graded broken stone of step (2), add drinking water, the graded broken stone mixture of group more than making by 4～5 water content;
(4), step (3) gained is organized graded broken stone mixture more carries out vibration compaction test, the optimum moisture content and the maximum dry density of definite graded broken stone mixture under the simulation research on vibrating compaction test mode;
(5), performance verification: under optimum moisture content and maximum dry density that step (4) is determined, by degree of compaction 98%, adopting the vibration moulding test method(s) to prepare a packet size is Φ 15cm * H15cm graded broken stone cylinder specimen, adopt the vibration moulding test method(s) to measure test specimen CBR down, CBR satisfies the CBR of basic unit 〉=300%, subbase CBR 〉=250%.
And water content selected in the described step (3) is between 3%～5%.
And the middle vibration moulding test method(s) of step (5) prepares graded broken stone cylinder specimen parameter and is: vibration frequency 30～40Hz, 30 ° of eccentric block angles, exciting force 7610～7650N, quiet surface pressure 140～180kPa, amplitude 1.4～2.0mm, vibration total time 2～3min.
The present invention solves its technical problem and is achieved through the following technical solutions:
Advantage of the present invention and beneficial effect are:
1. adopt the prepared graded broken stone mixture of method for designing of the present invention to can be applicable to site operation, and good pavement performance is arranged, according to the experimental project testing result, the graded broken stone mixture that the present invention proposes to optimize is easier to be compacted under the vibration effect.
2. the present invention reaches following purpose by to the composition of graded broken stone material, molding mode, grating design and match ratio design: degree is mated; 2. draw optimum grating, best molding mode and best compaction process that different materials reaches rock-steady structure,, thereby reach attenuate flexible pavement thickness, and then reduce construction costs with the modulus of raising graded broken stone base; 3. draw the best joint of flexbile base and semi-rigid type base, make it to give full play to the advantage of flexible pavement, can remedy its defective again, improve the road bearing capacity and increase the service life the saving cost; Thereby 4. set up the method for designing that can effectively improve rigidity reduction road table flexure on the basis that keeps original performance of graded broken stone than conventional method, thereby can promote the application of graded broken stone in speedway.
3. the graded broken stone that adopts vibration moulding mode of the present invention to design hits real design result with conventional heavy-duty and compares, the density of graded broken stone mixture improves 8～10%, CBR intensity improves 20%～50%, the mode of vibration moulding is close with the mode of site operation, need not special installation, on-the-spot degree of compaction can reach higher designing requirement fully.It is that the composite pavement structure collectivity quality of last basic unit is better than existing traditional road structure that the test section result shows with graded broken stone, and pavement performance further improves.Have remarkable economical and social benefit.
The specific embodiment
The invention will be further described below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
A kind of mixing proportion design method based on the vibration moulding graded broken stone, its concrete steps are:
(1), raw material are selected:
Choice set is joined the rubble raw material: the graded broken stone base building stones adopt limestone.Coarse aggregate has certain toughness in the limestone, and fine aggregate has certain plasticity, and the workability of construction and water retention are good than the building stones of other rock matter, are easy to roller-compaction, is difficult for segregation; Simultaneously, the limestone powdery type is same as pulverized limestone, can form intensity after reacting with water, is beneficial to the long-term use of road structure.Graded broken stone adopts impact breaker rolling, and technical data is as shown in table 1.Select drinking water to join the interpolation water of macadam-aggregate mix for collection.
Table 1 crushing technique parameter list
(2), the graded broken stone of preparation optimization:
The grating of graded broken stone is: aggregate size is less than accounting for grating 100% of the gross mass of gathering materials gathering materials of 31.5mm; Aggregate size is less than accounting for grating 75～85% of the gross mass of gathering materials gathering materials of 19mm; Aggregate size is less than accounting for grating 44～54% of the gross mass of gathering materials gathering materials of 9.5mm; Aggregate size is less than accounting for grating 28～38% of the gross mass of gathering materials gathering materials of 4.75mm; Aggregate size is less than accounting for grating 17～27% of the gross mass of gathering materials gathering materials of 2.36mm; Aggregate size is less than accounting for grating 8～14% of the gross mass of gathering materials gathering materials of 0.6mm; Aggregate size is less than accounting for grating 0～5% of the gross mass of gathering materials gathering materials of 0.075mm.Mineral aggregate screening result and match ratio result of calculation are as shown in table 1.
Screening of table 2 mineral aggregate and match ratio result of calculation
(3), in the graded broken stone of step (2), add drinking water, the graded broken stone mixture of group more than making by 4～5 water content.Water content is 3%, 3.5%, 4%, 4.5%, 5%.
(4), step (3) gained is organized graded broken stone mixture more carries out vibration compaction test, the optimum moisture content and the maximum dry density of definite graded broken stone mixture under the simulation research on vibrating compaction test mode.Its maximum dry density and optimum moisture content are respectively 2.432g/cm
3, 3.5%.Wherein the vibroplatform parameter is shown in table 3, and water content and dry density are illustrated in Fig. 1.
Table 3 shaketalle test instrument instrument parameter
| Vibration frequency | The eccentric block angle | Exciting force | Quiet surface pressure | Amplitude | Vibration total time |
| 30HZ? | 30°? | 7612N? | 140Kpa? | 1.4mm? | 2min? |
Fig. 1 water content and dry density figure
(5), performance comparatively validate: under maximum dry density and optimum moisture content that step (4) is determined,, adopt 6 graded broken stone cylinder specimens of vibration moulding test method(s) preparation by degree of compaction 98%.This graded broken stone cylinder specimen is of a size of Φ 15cm * H15cm.Graded broken stone should satisfy the technical requirements of table 4.
The technical requirements of table 4 graded broken stone
| Project | Design strength CBR (%) |
| Subbase | ≥250? |
| Basic unit | ≥300? |
Measure test specimen CBR under standard conditions, the CBR typical value is shown in table 4.Simultaneously, use same graded broken stone, determine optimum moisture content and maximum dry density under heavy compacting process, subsequently the test specimen that hits real molding mode moulding with heavy type is measured the CBR value, the CBR typical value also is shown in table 5.
Table 5 graded broken stone mixture service check result
The vibration moulding test is carried out according to " many control indexes of highway semi-rigid material composition design method " test method.Wherein, vibration frequency 30～40Hz, 30 ° of eccentric block angles, exciting force 7610～7650N, quiet surface pressure 140～180kPa, amplitude 1.4～2.0mm, vibration total time 2～3min.
As shown in Table 5, under optimum grating of the present invention, CBR value under the vibration moulding mode is greater than the hydrostatic profile mode, " asphalt highway design specifications " be middle regulation (JTGD50-2006), when graded broken stone is used as basic unit, the degree of compaction of its heavy tamp standards should be less than 98%, and the CBR value should be less than 100%; During as subbase, the degree of compaction of its heavy tamp standards should be less than 96%, and the CBR value should be less than 80%.Graded broken stone CBR all satisfies code requirement under two kinds of molding modes.And the Design of vibration table graded broken stone mixture can obtain higher shear strength, rule according to CBR and modulus of resilience simultaneous growth, can infer that vibroplatform method design compound also has higher modulus of resilience value, this has promoted the compressive strength of graded broken stone greatly, will improve its bearing capacity, reduce permanent deformation, and then reduce the road and show total flexure, prolong road surface service life.
The design's vibration moulding test specimen CBR value meets the demands greater than 300%. Vibration moulding is compared with hitting real moulding, and embedding is better crowded mutually between the coarse aggregate, can give full play to the intensity of skeleton, and fine aggregate can fully be filled the space of skeleton as filler. The mode of vibration moulding is close with the mode of site operation. After vibrating compacting, because variation has taken place the relative position between the particle, mutual filling phenomenon has appearred, the gap between the particle reduces. Close contact between the larger particles has also increased the interior frictional resistance that is compacted material, and the bearing capacity on basis is improved thereupon.
Claims (3)
1. mixing proportion design method based on the vibration moulding graded broken stone, it is characterized in that: the step of this method for designing is:
(1), raw material are selected:
Selecting limestone is the graded broken stone base building stones, and adopts impact breaker to be rolling to meet technical requirements;
Select drinking water to join the interpolation water of macadam-aggregate mix for collection;
(2), the graded broken stone of preparation optimization:
The grating of the graded broken stone of this optimization is: aggregate size is less than accounting for grating 100% of the gross mass of gathering materials gathering materials of 31.5mm; Aggregate size is less than accounting for grating 75～85% of the gross mass of gathering materials gathering materials of 19mm; Aggregate size is less than accounting for grating 44～54% of the gross mass of gathering materials gathering materials of 9.5mm; Aggregate size is less than accounting for grating 28～38% of the gross mass of gathering materials gathering materials of 4.75mm; Aggregate size is less than accounting for grating 17～27% of the gross mass of gathering materials gathering materials of 2.36mm; Aggregate size is less than accounting for grating 8～14% of the gross mass of gathering materials gathering materials of 0.6mm; Aggregate size is less than accounting for grating 0～5% of the gross mass of gathering materials gathering materials of 0.075mm;
(3), in the graded broken stone of step (2), add drinking water, the graded broken stone mixture of group more than making by 4～5 water content;
(4), step (3) gained is organized graded broken stone mixture more carries out vibration compaction test, the optimum moisture content and the maximum dry density of definite graded broken stone mixture under the simulation research on vibrating compaction test mode;
(5), performance verification: under optimum moisture content and maximum dry density that step (4) is determined, by degree of compaction 98%, adopting the vibration moulding test method(s) to prepare a packet size is Φ 15cm * H15cm graded broken stone cylinder specimen, measure test specimen CBR, CBR satisfies the CBR of basic unit 〉=300%, subbase CBR 〉=250%.
2. the mixing proportion design method based on the vibration moulding graded broken stone according to claim 1 is characterized in that: water content selected in the described step (3) is between 3%～5%.
3. the mixing proportion design method based on the vibration moulding graded broken stone according to claim 1, it is characterized in that: the middle vibration moulding test method(s) of step (5) prepares graded broken stone cylinder specimen parameter and is: vibration frequency 30～40Hz, 30 ° of eccentric block angles, exciting force 7610～7650N, quiet surface pressure 140～180kPa, amplitude 1.4～2.0mm, vibration total time 2～3min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010287217 CN102021872A (en) | 2010-09-20 | 2010-09-20 | Vibration molding-based method for design of mix proportion of graded broken stones |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010287217 CN102021872A (en) | 2010-09-20 | 2010-09-20 | Vibration molding-based method for design of mix proportion of graded broken stones |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102021872A true CN102021872A (en) | 2011-04-20 |
Family
ID=43863614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010287217 Pending CN102021872A (en) | 2010-09-20 | 2010-09-20 | Vibration molding-based method for design of mix proportion of graded broken stones |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102021872A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828455A (en) * | 2012-08-16 | 2012-12-19 | 天津市市政工程研究院 | High-performance graded broken stone mixture and preparation method thereof |
| CN103130433A (en) * | 2013-02-28 | 2013-06-05 | 浙江理工大学 | Highland road gradation crushed gravel material design method |
| CN103344750A (en) * | 2013-07-08 | 2013-10-09 | 清华大学 | Method for determining road roller compacted concrete composition based on pressing vibration method |
| CN103524061A (en) * | 2013-09-17 | 2014-01-22 | 长安大学 | Micro-surfacing mixture mineral aggregate grading optimization design method |
| CN104176962A (en) * | 2014-08-14 | 2014-12-03 | 东南大学 | Method of gravel grading design for high-speed rail subgrade |
| CN104193259A (en) * | 2014-08-14 | 2014-12-10 | 东南大学 | Preparation method of cement graded broken stones for high-speed rail roadbeds |
| CN104652211A (en) * | 2015-01-20 | 2015-05-27 | 四川公路桥梁建设集团有限公司 | Novel road surface mixture of stably-gradated broken-stone cushion layer doped with fine limestone aggregates |
| 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 |
| CN105714653A (en) * | 2016-02-02 | 2016-06-29 | 上海建工集团股份有限公司 | Combined rolling technology for graded broken stone base construction |
| CN106966639A (en) * | 2017-04-13 | 2017-07-21 | 长安大学 | A kind of poor asphalt macadam transition zone compound and semi-rigid asphalt pavement |
| 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 |
| CN111339680A (en) * | 2020-03-17 | 2020-06-26 | 中国一冶集团有限公司 | Grading composition design method for large-particle-size graded crushed stone |
| CN111499270A (en) * | 2020-04-23 | 2020-08-07 | 中交路桥建设有限公司 | Flexible base layer mineral aggregate gradation suitable for seasonal frozen region and determination method thereof |
| CN113077852A (en) * | 2021-03-26 | 2021-07-06 | 山东省路桥集团有限公司 | Cement stabilized macadam mineral aggregate grading optimization method based on waste concrete regenerated aggregate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101016721A (en) * | 2007-02-14 | 2007-08-15 | 易志坚 | Influent polymer cement concrete pavement structure on stabilization base course and contracture method |
| CN101551314A (en) * | 2009-05-11 | 2009-10-07 | 招商局重庆交通科研设计院有限公司 | Graded broken stone rut test method |
-
2010
- 2010-09-20 CN CN 201010287217 patent/CN102021872A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101016721A (en) * | 2007-02-14 | 2007-08-15 | 易志坚 | Influent polymer cement concrete pavement structure on stabilization base course and contracture method |
| CN101551314A (en) * | 2009-05-11 | 2009-10-07 | 招商局重庆交通科研设计院有限公司 | Graded broken stone rut test method |
Non-Patent Citations (1)
| Title |
|---|
| 《重庆交通大学学报(自然科学版)》 20090630 周卫峰 基于振动成型的级配碎石路用性能及设计标准 第560页"2 成型方式的比较及选择"、"3基于不同成型方式的级配碎石物理力学性能比较"，第563页"5基于振动成型方式的级配碎石实体工程"，附图1，表1、7、8 1-3 第28卷, 第3期 2 * |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828455A (en) * | 2012-08-16 | 2012-12-19 | 天津市市政工程研究院 | High-performance graded broken stone mixture and preparation method thereof |
| CN102828455B (en) * | 2012-08-16 | 2016-01-13 | 天津市市政工程研究院 | A kind of high-performance graded broken stone mixture and preparation method thereof |
| CN103130433A (en) * | 2013-02-28 | 2013-06-05 | 浙江理工大学 | Highland road gradation crushed gravel material design method |
| CN103344750A (en) * | 2013-07-08 | 2013-10-09 | 清华大学 | Method for determining road roller compacted concrete composition based on pressing vibration method |
| CN103344750B (en) * | 2013-07-08 | 2015-02-18 | 清华大学 | Method for determining road roller compacted concrete composition based on pressing vibration method |
| CN103524061B (en) * | 2013-09-17 | 2015-06-17 | 长安大学 | Micro-surfacing mixture mineral aggregate grading optimization design method |
| CN103524061A (en) * | 2013-09-17 | 2014-01-22 | 长安大学 | Micro-surfacing mixture mineral aggregate grading optimization design method |
| CN104176962A (en) * | 2014-08-14 | 2014-12-03 | 东南大学 | Method of gravel grading design for high-speed rail subgrade |
| CN104193259B (en) * | 2014-08-14 | 2015-11-18 | 东南大学 | A kind of preparation method about high ferro roadbed cement stabilized graded macabam |
| CN104193259A (en) * | 2014-08-14 | 2014-12-10 | 东南大学 | Preparation method of cement graded broken stones for high-speed rail roadbeds |
| CN104652211A (en) * | 2015-01-20 | 2015-05-27 | 四川公路桥梁建设集团有限公司 | Novel road surface mixture of stably-gradated broken-stone cushion layer doped with fine limestone aggregates |
| 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 |
| CN105714653A (en) * | 2016-02-02 | 2016-06-29 | 上海建工集团股份有限公司 | Combined rolling technology for graded broken stone base construction |
| CN106966639A (en) * | 2017-04-13 | 2017-07-21 | 长安大学 | A kind of poor asphalt macadam transition zone compound and semi-rigid asphalt pavement |
| 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 |
| CN111339680A (en) * | 2020-03-17 | 2020-06-26 | 中国一冶集团有限公司 | Grading composition design method for large-particle-size graded crushed stone |
| CN111499270A (en) * | 2020-04-23 | 2020-08-07 | 中交路桥建设有限公司 | Flexible base layer mineral aggregate gradation suitable for seasonal frozen region and determination method thereof |
| CN113077852A (en) * | 2021-03-26 | 2021-07-06 | 山东省路桥集团有限公司 | Cement stabilized macadam mineral aggregate grading optimization method based on waste concrete regenerated aggregate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102021872A (en) | Vibration molding-based method for design of mix proportion of graded broken stones | |
| CN111021178B (en) | Cement-stabilized anti-crack base newly-built pavement structure and construction method and application thereof | |
| CN102019645A (en) | Vibration-molding-based cement stabilized macadam mixing ratio design method | |
| CN103215875B (en) | A kind of anti-fatigue asphalt pavement based on differential settlement | |
| CN103255696B (en) | The connection type graded broken stone mixture of a kind of Semi-Rigid Pavement Structure and use thereof | |
| CN107777967A (en) | A kind of crack resistance type rubber powder Cement Stable Macadam Mixture and preparation method thereof | |
| CN109336499A (en) | A kind of steady gangue of water fills big Stone base material and its design method | |
| CN101619557A (en) | Pavement base course material prepared from brick mixed building rubbish regenerated aggregate and preparation method thereof | |
| Yao et al. | Optimum design and performance of porous concrete for heavy-load traffic pavement in cold and heavy rainfall region of NE China | |
| CN102863182A (en) | Ultrathin rubber asphalt wearing layer mixing material for preventive conservation | |
| CN201296895Y (en) | Vertical cracking pavement repair structure | |
| CN102828455B (en) | A kind of high-performance graded broken stone mixture and preparation method thereof | |
| CN110205895A (en) | A kind of green low-carbon environment-friendly type road structure using regrown material | |
| CN101736672B (en) | Embedded pouring asphalt concrete | |
| CN204000529U (en) | Engineering asphalt pavement structure | |
| CN203373632U (en) | Semi-rigid pavement structure | |
| CN104193259B (en) | A kind of preparation method about high ferro roadbed cement stabilized graded macabam | |
| CN111005285A (en) | White-to-black pavement structure and white-to-black pavement construction method | |
| CN114182595B (en) | Construction method of long-life asphalt road | |
| CN112982081B (en) | High-wear-resistance material for roads and preparation method and application thereof | |
| CN109180076A (en) | A kind of shape memory asphalt pavement material and self-healing mould assembly asphalt pavement structure | |
| CN210085965U (en) | High-modulus asphalt mixture road structure | |
| CN103787618B (en) | Layer and forming method thereof dissipate in a kind of micro-asphalt macadam crack based on vibration moulding | |
| CN108221539B (en) | A kind of asphalt pavement structure, resonant rubbilizing composite base and its manufacturing method | |
| CN102535297A (en) | Polypropylene fiber concrete roadway structure suitable for large-tonnage cars and construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110420 |