CN105386381A - Pickaxe crushing and grouting recycling method for old cement concrete pavement - Google Patents
Pickaxe crushing and grouting recycling method for old cement concrete pavement Download PDFInfo
- Publication number
- CN105386381A CN105386381A CN201510652225.XA CN201510652225A CN105386381A CN 105386381 A CN105386381 A CN 105386381A CN 201510652225 A CN201510652225 A CN 201510652225A CN 105386381 A CN105386381 A CN 105386381A
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- grouting
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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
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
- E01C7/147—Repairing concrete pavings, e.g. joining cracked road sections by dowels, applying a new concrete covering
-
- 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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Road Paving Structures (AREA)
- Road Repair (AREA)
Abstract
The invention provides a pickaxe crushing and grouting recycling method for an old cement concrete pavement, which relates to the technical field of road maintenance. The pickaxe crushing and grouting recycling method for the old cement concrete pavement comprises the following steps of old cement concrete pavement detection, old cement concrete pavement treatment, mortar mixing ratio making, construction setting-out, pickaxe crushing, sweeping and watering, grouting and maintenance. The invention has the advantages of small construction impact force, small vibration and the like and can effectively prevent the damages of the construction to the surrounding buildings. The grouted mortar can effectively fill holes of a base course of the old cement concrete pavement, eliminate a disengaging effect of an old pavement panel, and solve potential quality hazards of the old pavement. A flexible improving effect on a rigid structural layer can be exerted. The pickaxe crushing and grouting recycling method for the old cement concrete pavement has the advantages of simple construction process and less equipment input. Old pavement materials are sufficiently utilized to recover and enhance the strength of the old pavement so that purposes of saving energy, reducing consumption, reducing environmental pollution and reducing construction cost are achieved.
Description
Technical field
The present invention relates to road maintenance technical field, particularly relate to a kind of old concrete road surface pick fragmentation grouting reuse method.
Background technology
Present stage most common road cement concrete pavement due to the traffic volume surge, overload of vehicle, construction technique standard are low and meet or exceed the reasons such as design life application life, need carry out large repairs or reconstruct.Conventional cement concrete topping overhaul scheme adopts the technique such as " shock compaction " or " breaking pressure steady " to cement old concrete road, and its impact force is large, and seismaesthesia is strong, large to surrounding constructure influence, is not suitable for the section for passing through village and market town; Or directly excavate reconstruction to former cement concrete pavement, while producing a large amount of waste material of buildings, newly-built road also needs to use a large amount of sandstone material, causes the wasting of resources.
Summary of the invention
The object of the present invention is to provide a kind of old concrete road surface pick fragmentation grouting reuse method, to solve the problems of the technologies described above.By broken for former cement concrete pavement pick post-grouting recycling, effectively can solve the process of the old concrete road surface passing through villages and small towns section, make full use of old pipeline material to recover and improve old road intensity, reaching energy-saving and cost-reducing, reduce environment pollution, reduce construction costs object.
Technical problem to be solved by this invention realizes by the following technical solutions:
A kind of old concrete road surface pick fragmentation grouting reuse method, is characterized in that, comprise the following steps:
A, old concrete road surface detect, process
Detect old concrete road surface flexure by backman beam method and two-way round detection method, in testing process, first survey 1# front edge of board 2 two point, inspection vehicle advances and surveys 2# front edge of board two point, and so each all 2, drafting board block front ends are until terminal.Then turn inspection vehicle direction, from terminal drafting board block rear end two point, survey 1# plate rear end 2 two point until last.This detection method, often surveys a bit, and the rear axle of inspection vehicle all sails out of tested plate, ensure that the complete resilience in measured point, completely eliminates rear axle load drop point to the impact of measuring point deflection value.By deflection testing deflection value be greater than 40 plate and the field observation fracture, faulting of slab ends, the depression plate that find remove, build the new cement concrete pavement with old concrete road surface similar intensity, clean wanting construction section the same day, the asphalt surface patching materials such as the asphaltum concrete cover-layer that former road surface exists are removed, keeps road surface clean and tidy;
B, mix ratio of mortar make
Select medium sand between 2.3-3.0 of P.O42.5 class g cement and fineness film number and water, add appropriate high efficiency water reducing agent, make mortar after adopting mixer mix, the strength grade of mortar is M20, the denseness of mortar is 100mm ~ 140mm, and mortar water retention is >=80%; Described water reducing agent is that beneficial JD-48 high efficiency water reducing agent is won in Nanjing.
C, construction lofting
Sentence lime in road section surface transverse direction to be onstructed and longitudinal direction about 50 centimeters and get mark ready; According to design drawing, surveying setting-out is carried out to route center line, sideline, determine to need broken width.And according to Design Requirement Drawing to be onstructed section of transverse direction and longitudinally about 50 centimeters sentence lime and get mark ready, ensure that former cement concrete pavement is evenly broken.
D, mechanical pick are broken
Utilize pick crushing engine to carry out fragmentation, during the work of pick crushing engine, tup should keep vertical in ground, and after the fragmentation of monoblock cement concrete slab completes, hole is vertical and cement concrete slab is punched at each hole, and concrete breaking block size is at below 50cm*50cm; By fragmentation, make can play flexible improvement result to former rigid structural layer.
E, cleaning watering
After Damage of the old cement concrete pavement board adopts worth fragmentation, the concrete chip on cleaning crushing shell and dust, can not block hole impact grouting, after broken on broken concrete clean clean after carry out surface with sprinkling truck and sprinkle water moistening;
F, grouting
Carry out mixing M20 mortar by mortar machine, M20 mortar good for mixing pave equably cleaning broken concrete on the surface, thickness is 3cm at least;
After adopting 32T vibratory roller to vibrate 3 times, low-lying place's continuation mortar levelling is rolled;
G, maintenance
After having rolled, maintenance in 7 days should be carried out, within curing time, remain moisture state, and carry out traffic control, in curing time, forbid motor vehicles to pass through.
During described mix ratio of mortar makes, the consumption of water is 304kg/m
3, described cement consumption is 515kg/m
3, the consumption of described water reducing agent is by cement consumption 1.0%.
The broken grouting construction process of old concrete road surface pick, old pavement need not be excavated, and makes full use of old pipeline material to recover and improves old road intensity, accomplishing twice laid, avoids old material (building waste) contaminated environment in transport and stacking process.Greatly reduce the material usages such as sandstone simultaneously, reach energy-saving and cost-reducing, resources conservation, reduce construction costs object, meet national sustainable development requirement." green " construction technology is called by people.
The invention has the beneficial effects as follows:
The invention provides a kind of old concrete road surface pick fragmentation grouting reuse method, there is construction impact force little, vibrate the advantages such as little, can effectively prevent construction from damaging Adjacent Buildings.The mortar poured into effectively can fill up the cavity of old concrete road surface basic unit, eliminates the effect of coming to nothing of old road panel, solves old road hidden danger of quality.Flexible improvement result can be played to rigid structural layer.Construction technology is simple, and used device is few.Make full use of old pipeline material to recover and improve old road intensity, reaching energy-saving and cost-reducing, reducing environment pollution, reducing construction costs object.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, set forth the present invention further, but following embodiment being only the preferred embodiments of the present invention, and not all.Based on the embodiment in embodiment, those skilled in the art under the prerequisite not making creative work obtain other embodiment, all belong to protection scope of the present invention.A kind of old concrete road surface pick fragmentation grouting reuse method, is characterized in that, comprise the following steps:
A, old concrete road surface detect, process
Detect old concrete road surface flexure by backman beam method and two-way round detection method, in testing process, first survey 1# front edge of board 2 two point, inspection vehicle advances and surveys 2# front edge of board two point, and so each all 2, drafting board block front ends are until terminal.Then turn inspection vehicle direction, from terminal drafting board block rear end two point, survey 1# plate rear end 2 two point until last.This detection method, often surveys a bit, and the rear axle of inspection vehicle all sails out of tested plate, ensure that the complete resilience in measured point, completely eliminates rear axle load drop point to the impact of measuring point deflection value.By deflection testing deflection value be greater than 40 plate and the field observation fracture, faulting of slab ends, the depression plate that find remove, build the new cement concrete pavement with old concrete road surface similar intensity, clean wanting construction section the same day, the asphalt surface patching materials such as the asphaltum concrete cover-layer that former road surface exists are removed, keeps road surface clean and tidy;
B, mix ratio of mortar make
Select medium sand between 2.3-3.0 of P.O42.5 class g cement and fineness film number and water, add appropriate high efficiency water reducing agent, make mortar after adopting mixer mix, the strength grade of mortar is M20, the denseness of mortar is 100mm ~ 140mm, and mortar water retention is >=80%; Water reducing agent is that beneficial JD-48 high efficiency water reducing agent is won in Nanjing.
C, construction lofting
Sentence lime in road section surface transverse direction to be onstructed and longitudinal direction about 50 centimeters and get mark ready; According to design drawing, surveying setting-out is carried out to route center line, sideline, determine to need broken width.And according to Design Requirement Drawing to be onstructed section of transverse direction and longitudinally about 50 centimeters sentence lime and get mark ready, ensure that former cement concrete pavement is evenly broken.
D, mechanical pick are broken
Utilize pick crushing engine to carry out fragmentation, during the work of pick crushing engine, tup should keep vertical in ground, and after the fragmentation of monoblock cement concrete slab completes, hole is vertical and cement concrete slab is punched at each hole, and concrete breaking block size is at below 50cm*50cm; By fragmentation, make can play flexible improvement result to former rigid structural layer.
E, cleaning watering
After Damage of the old cement concrete pavement board adopts worth fragmentation, the concrete chip on cleaning crushing shell and dust, can not block hole impact grouting, after broken on broken concrete clean clean after carry out surface with sprinkling truck and sprinkle water moistening;
F, grouting
Carry out mixing M20 mortar by mortar machine, M20 mortar good for mixing pave equably cleaning broken concrete on the surface, thickness is 3cm at least;
After adopting 32T vibratory roller to vibrate 3 times, low-lying place's continuation mortar levelling is rolled;
G, maintenance
After having rolled, maintenance in 7 days should be carried out, within curing time, remain moisture state, and carry out traffic control, in curing time, forbid motor vehicles to pass through.
During mix ratio of mortar makes, the consumption of water is 304kg/m
3, cement consumption is 515kg/m
3, the consumption of water reducing agent is by cement consumption 1.0%.
The broken grout construction method of old concrete road surface pick, solves dead meal process problem in Highway and maintenance processes, greatly reduces construction costs.County town, S307 Woyang to the Mengcheng section Class I highway alteration work undertaken the construction of for our company, this employing old concrete road surface pick fragmentation is in the milk complicated utilization construction method on the spot, through comparative analysis cost, has higher economic benefit.
Unitem grouting recycling construction method and conventional construction method cost compare:
Example
Our company passes through in S307 Woyang to Mengcheng section Class I highway alteration work (county town, Woyang to west sun) road money total length 13.578 kilometers, and construction costs 24,999 ten thousand yuan, time limit for contract 12 months, in October, 2013 goes into operation, and on September 30th, 2014 completes.Former cement concrete pavement have employed pick fragmentation grouting recycling construction technology; avoid traditional a large amount of obsolete material of construction method generation and the dust pollution etc. of mechanical carrying process; be conducive to the protection of resources conservation and ecological environment; the consistent accreditation of various circles of society is achieved, remarkable in economical benefits in quality, progress etc.
Route total length 14.1km is marked to Linquan section alteration work 03 in the S102 West Lake, and construction costs is 28,300 ten thousand yuan, and in March, 2012 goes into operation, and in March, 2014 completes.Former cement concrete pavement wear section, market town be about 2km have employed pick fragmentation grouting recycling construction technology; avoid traditional a large amount of obsolete material of construction method generation and the dust pollution etc. of mechanical carrying process; be conducive to the protection of resources conservation and ecological environment; the consistent accreditation of various circles of society is achieved, remarkable in economical benefits in quality, progress etc.
105 national highway Fuyang to Taihe county section alteration works 01 mark route total length 12.75km, and construction costs is 23,648 ten thousand yuan, and in April, 2011 goes into operation, and in August, 2012 completes.Former cement concrete pavement is worn section, market town and is about 1.5km and have employed pick fragmentation grouting recycling construction technology, and since being open to traffic, pavement behavior is good, does not occur any defect phenomenon, obtains good economic and social benefit.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and manual is only preference of the present invention; be not used for limiting the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (2)
1. an old concrete road surface pick fragmentation grouting reuse method, is characterized in that, comprise the following steps:
A, old concrete road surface detect, process
Old concrete road surface flexure is detected by backman beam method and two-way round detection method, by deflection testing deflection value be greater than 40 plate and the field observation fracture, faulting of slab ends, the depression plate that find remove, build the new cement concrete pavement with old concrete road surface similar intensity, clean wanting construction section the same day, the asphalt surface patching materials such as the asphaltum concrete cover-layer that former road surface exists are removed, keeps road surface clean and tidy;
B, mix ratio of mortar make
Select medium sand between 2.3-3.0 of P.O42.5 class g cement and fineness film number and water, add appropriate high efficiency water reducing agent, make mortar after adopting mixer mix, the strength grade of mortar is M20, the denseness of mortar is 100mm ~ 140mm, and mortar water retention is >=80%;
C, construction lofting
Sentence lime in road section surface transverse direction to be onstructed and longitudinal direction about 50 centimeters and get mark ready;
D, mechanical pick are broken
Utilize pick crushing engine to carry out fragmentation, during the work of pick crushing engine, tup should keep vertical in ground, and after the fragmentation of monoblock cement concrete slab completes, hole is vertical and cement concrete slab is punched at each hole, and concrete breaking block size is at below 50cm*50cm;
E, cleaning watering
After Damage of the old cement concrete pavement board adopts worth fragmentation, the concrete chip on cleaning crushing shell and dust, after broken on broken concrete clean clean after carry out surface with sprinkling truck and sprinkle water moistening;
F, grouting
Carry out mixing M20 mortar by mortar machine, M20 mortar good for mixing pave equably cleaning broken concrete on the surface, thickness is 3cm at least;
After adopting 32T vibratory roller to vibrate 3 times, low-lying place's continuation mortar levelling is rolled;
G, maintenance
After having rolled, maintenance in 7 days should be carried out, within curing time, remain moisture state, and carry out traffic control, in curing time, forbid motor vehicles to pass through.
2. a kind of old concrete road surface pick fragmentation grouting reuse method according to claim 1, is characterized in that: during described mix ratio of mortar makes, the consumption of water is 304kg/m
3, described cement consumption is 515kg/m
3, the consumption of described water reducing agent is by cement consumption 1.0%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510652225.XA CN105386381A (en) | 2015-10-09 | 2015-10-09 | Pickaxe crushing and grouting recycling method for old cement concrete pavement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510652225.XA CN105386381A (en) | 2015-10-09 | 2015-10-09 | Pickaxe crushing and grouting recycling method for old cement concrete pavement |
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| CN105386381A true CN105386381A (en) | 2016-03-09 |
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| CN201510652225.XA Pending CN105386381A (en) | 2015-10-09 | 2015-10-09 | Pickaxe crushing and grouting recycling method for old cement concrete pavement |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905082A (en) * | 2017-11-03 | 2018-04-13 | 长沙理工大学 | Suitable for the broken Application way of Deteriorated concrete pavement panel under bad support |
| CN108505409A (en) * | 2018-01-31 | 2018-09-07 | 天津市市政工程设计研究院 | Solidified slip soil and construction refuse regenerated composite inorganic material and its forming method of gathering materials |
| CN108951345A (en) * | 2018-08-06 | 2018-12-07 | 南通鑫金建设集团有限公司 | Zip mode quickly repairs the construction method of measures of cracks on concrete pavement |
| CN110240454A (en) * | 2019-07-30 | 2019-09-17 | 福州大学 | A method of concrete road surface is repaired using protofibre cement based patching material |
| CN110607919A (en) * | 2018-06-15 | 2019-12-24 | 上海天补材料科技有限公司 | Regeneration technology of high-strength broken concrete |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905082A (en) * | 2017-11-03 | 2018-04-13 | 长沙理工大学 | Suitable for the broken Application way of Deteriorated concrete pavement panel under bad support |
| CN107905082B (en) * | 2017-11-03 | 2019-12-13 | 长沙理工大学 | Crushing and utilizing method suitable for old cement concrete panel under poor support |
| CN108505409A (en) * | 2018-01-31 | 2018-09-07 | 天津市市政工程设计研究院 | Solidified slip soil and construction refuse regenerated composite inorganic material and its forming method of gathering materials |
| CN110607919A (en) * | 2018-06-15 | 2019-12-24 | 上海天补材料科技有限公司 | Regeneration technology of high-strength broken concrete |
| CN108951345A (en) * | 2018-08-06 | 2018-12-07 | 南通鑫金建设集团有限公司 | Zip mode quickly repairs the construction method of measures of cracks on concrete pavement |
| WO2020029308A1 (en) * | 2018-08-06 | 2020-02-13 | 南通鑫金建设集团有限公司 | Construction method for quickly repairing concrete pavement crack in zipper-manner |
| CN110240454A (en) * | 2019-07-30 | 2019-09-17 | 福州大学 | A method of concrete road surface is repaired using protofibre cement based patching material |
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Inventor after: Jiang Yunqing Inventor after: Han Hengzhong Inventor after: Liu Fu Inventor after: Hou Ruini Inventor after: Liu Bo Inventor after: Zhang Shuangchun Inventor after: Zhang Haitao Inventor after: Pei Yan Inventor before: Tang Qian Inventor before: Hao Zhiming Inventor before: Han Hengzhong Inventor before: Jiang Yunqing Inventor before: Liu Bo Inventor before: Zhang Shuangchun Inventor before: Zhang Haitao Inventor before: Pei Yan |
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Application publication date: 20160309 |