CN101817663A - Method for quickly repairing concrete road surface - Google Patents
Method for quickly repairing concrete road surface Download PDFInfo
- Publication number
- CN101817663A CN101817663A CN201010169122A CN201010169122A CN101817663A CN 101817663 A CN101817663 A CN 101817663A CN 201010169122 A CN201010169122 A CN 201010169122A CN 201010169122 A CN201010169122 A CN 201010169122A CN 101817663 A CN101817663 A CN 101817663A
- Authority
- CN
- China
- Prior art keywords
- water
- concrete
- road surface
- cement
- patching material
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- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
- Road Repair (AREA)
Abstract
The invention discloses a method for quickly repairing a concrete road surface. Each cubic meter of road surface repairing materials adopted by the method comprise the following components by weight: 333 to 387kg of metakaolin, 138kg of slag, 28 to 82kg of ordinary Portland cement, 415kg of water glass, 708kg of medium sand and 1,505kg of stones (5-20mm), wherein the modulus of the water glass is 1.4; the water cement ratio of the formula is 0.37 to 0.39; the water content comprises the contained water of the water glass and the externally added water; and the amount of the externally added water is co-determined by the water cement ratio and the contained water of the water glass. Compared with the ordinary cement concrete repairing method, the method of the invention can greatly shorten the open traffic time; the road repaired by the method of the invention can be used only 8 to 10 hours later at most; and the durability of the repairing materials and the bonding property of the new and old concrete are far superior to those of the ordinary concrete repairing material.
Description
Technical field
The invention belongs to the cement concrete pavement maintenance technology, particularly a kind of fast repairing method that is used for after the breakage of concrete road surface.
Background technology
The present road length overall of China has more than 200 ten thousand kilometers, wherein cement concrete pavement is about 60%, according to incompletely statistics, the existing cement concrete pavement of China has 50%～60% to need to repair, therefore, quick, competent patching material of exploitation and method for repairing and mending more and more are subject to people's attention.
Method for repairing and mending commonly used at present is to pour into a mould portland cement concrete again at place, damaged road surface, because curing time was long after this conventional repair method was repaired the road surface, generally need 3～7 days ability open to traffic, and in fact cement concrete needs 28 days its intensity to stablize, normal concrete bad adhesion, contraction are greatly in addition, cause the repairing pavement durability poor, a place often needs to repair repeatedly.And now for the location, transport hub of motorway, shorter and shorter in order to reduce financial loss to the time requirement of open to traffic, more and more higher to the life requirement of patching material.
Summary of the invention
Purpose of the present invention is exactly in order to overcome the shortcoming and defect of above-mentioned concrete patching method, a kind of novel concrete road surface fast repairing method is provided, the employed patching material of this method for repairing and mending has advantages such as fast solidifying, early strength height, cementability are strong, good endurance, need not special maintenance after repairing the road surface, can shorten the open to traffic time greatly, and need not to repair repeatedly.
For achieving the above object, the main ingredient and the weight thereof of every cubic metre of the employed a kind of concrete patching material of the technical solution used in the present invention are as follows:
Metakaolin (fineness 200～1000 orders): 333～387kg
Slag (specific surface area 300～500m
2/ kg): 138kg
Ordinary Portland cement (42.5R): 28～82kg
Water glass (modulus 1.3～1.5): 415kg
Medium sand: 708kg
Stone (particle diameter 5～20mm): 1505kg
Water cement ratio is 0.37～0.39 in the above-mentioned proportioning, and the water in the water cement ratio comprises that water glass institute is moisture and adds water.The weight that adds water is converted by the water ratio of water glass and water cement ratio and gets.
8h can be open to traffic after concrete patching method of the present invention was repaired the road surface, compared with traditional pavement patching material and can shorten the open to traffic time greatly, need not to repair repeatedly after once repairing, and good economic benefits and social benefit are arranged.
Embodiment
Below in conjunction with embodiment, only the invention will be further described, rather than limiting the scope of the invention.
Embodiment 1
Main ingredient and weight thereof that the employed concrete patching material of a kind of concrete road surface according to claim 1 fast repairing method is every cubic metre are as follows:
Metakaolin (200 order): 360kg
Slag (400m
2/ kg): 138kg
Ordinary Portland cement (42.5R): 55kg
Water glass (modulus 1.4): 415kg
Medium sand: 708kg
Stone (5～20mm): 1505kg
Water cement ratio is 0.37～0.39 in the above-mentioned proportioning, and the water in the water cement ratio comprises that water glass institute is moisture and adds water.The weight that adds water is converted by the water ratio of water glass and water cement ratio and gets.
The relevant mechanical property and the durability index of the prepared concrete road surface fast repairing material of proportioning are as follows thus:
(1) the mechanical property experimental technique the results are shown in Table 1 with reference to testing about concrete bending and compressive strength test method in " highway engineering cement and cement concrete testing regulation ":
Table 1 mechanical performance of concrete
| The length of time | ??8h | ??1d | ??3d | ??28d |
| Folding strength (MPa) | ??3.25 | ??3.93 | ??5.33 | ??5.92 |
| Ultimate compression strength (MPa) | ??43.6 | ??52.4 | ??54.8 | ??62.7 |
The ultimate compression strength that proposes patching material (cylindrical specimen and beam deflection test specimen) in the monographic study achievement of concrete research project in U.S.'s SHRP (Strategic Highway Research Program) " one practice of cement concrete highway technology and prospect " reaches the standard that is open to traffic when 12.3～17.0MPa.Present domestic concrete road surface fast repairing material is generally controlled intensity with folding strength as open to traffic, and scope is between 3.0～3.8MPa.As shown in Table 1, the concrete patching material 8h folding strength that the present invention developed promptly reaches 3.25MPa, and ultimate compression strength reaches 43.6MPa, satisfies the requirement of open to traffic on mechanical performance index fully, therefore, with the open to traffic that can be open to traffic behind this patching material remedial cement concrete road surface 8h.
(2) 100 * 100 * 400 bending test mould is adopted in the experiment of new-old concrete cohesive strength, one end is put into old concrete sample, the other end concrete casting injection forming that stirs, and it is cohesive strength that natural curing was tested folding strength after 28 days, 3 test specimens of coforming, experimental result sees Table 2:
Table 2 new-old concrete cohesive strength
| Numbering | Bonding strength | Fracture place |
| ??1 | ??3.91MPa | New deposit concrete place |
| Numbering | Bonding strength | Fracture place |
| ??2 | ??4.26MPa | New deposit concrete place |
| ??3 | ??4.15MPa | New deposit concrete place |
According to the cohesive strength technical requirements in " Cement Concrete Pavement Slab piece patching material and repairing technique are relatively ", the new-old concrete cohesive strength need reach 55% of former pavement concrete design strength, and the prevailing roadway concrete flexural strength is generally 4～5MPa, be that the patching material cohesive strength need reach 2.20～2.75MPa, the prepared mending concrete cohesive strength of the present invention is all above the correlation technique requirement as shown in Table 2, and fracture place is not at new-old concrete at the interface, shows that this patching material cohesiveness is fine.
(3) the concrete shrinkage experimental technique carries out with reference to cement concrete drying shrinkage test method among " highway engineering cement and cement concrete testing regulation " T 0566-2005, proportioning as previously mentioned, experimental result sees Table 3:
Table 3 concrete shrinkage rate (%)
| The length of time | ??1d | ??3d | ??7d | ??14d | ??28d |
| Shrinking percentage (%) | ??-0.001 | ??0.008 | ??0.010 | ??0.014 | ??0.020 |
As shown in Table 3, concrete sample shows as microdilatancy in early days, but rate of expansion is minimum, concrete inner structure almost there is not influence, 28 days shrinking percentages of concrete are 0.02%, and desired mending concrete 28d shrinking percentage is no more than 0.02% requirement in satisfied " Cement Concrete Pavement Slab piece patching material and repairing technique are relatively ".
Embodiment 2
Main ingredient and weight thereof that the employed concrete patching material of a kind of concrete road surface according to claim 1 fast repairing method is every cubic metre are as follows:
Metakaolin (300 order): 387kg
Slag (400m
2/ kg): 138kg
Ordinary Portland cement (42.5R): 28kg
Water glass (modulus 1.3): 415kg
Medium sand: 708kg
Stone (5～20mm): 1505kg
Water cement ratio is 0.37～0.39 in the above-mentioned proportioning, and the water in the water cement ratio comprises that water glass institute is moisture and adds water.The weight that adds water is converted by the water ratio of water glass and water cement ratio and gets.
Embodiment 3
Main ingredient and weight thereof that the employed concrete patching material of a kind of concrete road surface according to claim 1 fast repairing method is every cubic metre are as follows:
Metakaolin (300 order): 333kg
Slag (400m
2/ kg): 138kg
Ordinary Portland cement (42.5R): 82kg
Water glass (modulus 1.5): 415kg
Medium sand: 708kg
Stone (5～20mm): 1505kg
Water cement ratio is 0.37～0.39 in the above-mentioned proportioning, and the water in the water cement ratio comprises that water glass institute is moisture and adds water.The weight that adds water is converted by the water ratio of water glass and water cement ratio and gets.
Claims (2)
1. a concrete road surface fast repairing method comprises 1) preparation concrete patching material, 2) the concrete patching material is cast in damaged road surface, 3) maintenance.It is characterized in that concrete steps are as follows:
1) preparation concrete patching material:
(1), metakaolin, slag, cement being equaled powder stirs;
(2), sand, stone etc. is gathered materials add dry mash and be stirred to evenly;
(3), according to the modulus of commercial water glass, use chemical pure NaOH that its modulus is adjusted to 1.3～1.5, in the water glass that regulates modulus directly added the dry mash that stirs without ageing and gathering materials, add required water at last, compound is stirred 3～4min, promptly make the concrete patching material;
2) the above-mentioned concrete patching material that makes is cast in the damaged road surface of cleaning out according to a conventional method, vibrates a little with concrete vibration bar, floating;
3) after concrete repair material cast finishes, only need carry out the natural curing about 8 hours, not need to resemble special curings such as the watering that must carry out 3～7 days the portland cement concrete patching material or coating film.
2. a kind of concrete road surface according to claim 1 fast repairing method is characterized in that: the 1st) main ingredient and the weight thereof of every cubic metre of the concrete patching material that makes of step are as follows:
Metakaolin (fineness 200～1000 orders): 333～387kg
Slag (specific surface area 300～500m
2/ kg): 138kg
Ordinary Portland cement (42.5R): 28～82kg
Water glass (modulus 1.3～1.5): 415kg
Medium sand: 708kg
Stone (particle diameter 5～20mm): 1505kg
Water cement ratio is 0.37～0.39 in the above-mentioned proportioning, and the water in the water cement ratio comprises that water glass institute is moisture and adds water.The weight that adds water is converted by the water ratio of water glass and water cement ratio and gets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101691225A CN101817663B (en) | 2010-05-12 | 2010-05-12 | Method for quickly repairing concrete road surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101691225A CN101817663B (en) | 2010-05-12 | 2010-05-12 | Method for quickly repairing concrete road surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101817663A true CN101817663A (en) | 2010-09-01 |
| CN101817663B CN101817663B (en) | 2013-01-23 |
Family
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|---|---|---|---|
| CN2010101691225A Active CN101817663B (en) | 2010-05-12 | 2010-05-12 | Method for quickly repairing concrete road surface |
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| CN (1) | CN101817663B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180638A (en) * | 2011-01-28 | 2011-09-14 | 内蒙古科技大学 | Repairing material for concrete pavement in mining area |
| CN103360001A (en) * | 2013-07-10 | 2013-10-23 | 中交公路养护工程技术有限公司 | Fast hardening early strength concrete for overall width repair of cement concrete pavement |
| CN103993609A (en) * | 2014-02-20 | 2014-08-20 | 龚金京 | Silicon lime sand water guiding, draining and filtering multifunctional rapid and rigid congealing body manual repaired foundation pit water-stopping curtain |
| CN104499395A (en) * | 2014-12-30 | 2015-04-08 | 南通福伦利新材料有限公司 | Quick repairing method of old cement concrete pavement |
| CN106630858A (en) * | 2017-01-03 | 2017-05-10 | 南京航空航天大学 | Surface strengthening and repairing material for hydraulic concrete, and application thereof |
| CN113698170A (en) * | 2021-09-08 | 2021-11-26 | 纳思同(无锡)科技发展有限公司 | High-performance pervious concrete rapid repairing material and preparation method and application thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1128117C (en) * | 2000-10-25 | 2003-11-19 | 上海双鹤特种水泥有限公司 | Fast repairing concrete material and its production process |
| CN1654411A (en) * | 2005-01-21 | 2005-08-17 | 赵若鹏 | Fast repairing concrete material and its use method |
| CN101698590B (en) * | 2009-10-21 | 2012-07-04 | 河海大学 | Repairing material for concrete and preparation method thereof |
-
2010
- 2010-05-12 CN CN2010101691225A patent/CN101817663B/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180638A (en) * | 2011-01-28 | 2011-09-14 | 内蒙古科技大学 | Repairing material for concrete pavement in mining area |
| CN103360001A (en) * | 2013-07-10 | 2013-10-23 | 中交公路养护工程技术有限公司 | Fast hardening early strength concrete for overall width repair of cement concrete pavement |
| CN103360001B (en) * | 2013-07-10 | 2015-08-26 | 中交公路养护工程技术有限公司 | The complete thick formula repairing high-early-strength type concrete of cement concrete pavement |
| CN103993609A (en) * | 2014-02-20 | 2014-08-20 | 龚金京 | Silicon lime sand water guiding, draining and filtering multifunctional rapid and rigid congealing body manual repaired foundation pit water-stopping curtain |
| CN103993609B (en) * | 2014-02-20 | 2017-08-29 | 龚金京 | The multi-functional fast hard concrement manual repair foundation pit waterproof curtain of silicon ash sand guide drainage |
| CN104499395A (en) * | 2014-12-30 | 2015-04-08 | 南通福伦利新材料有限公司 | Quick repairing method of old cement concrete pavement |
| CN106630858A (en) * | 2017-01-03 | 2017-05-10 | 南京航空航天大学 | Surface strengthening and repairing material for hydraulic concrete, and application thereof |
| CN106630858B (en) * | 2017-01-03 | 2019-11-05 | 南京航空航天大学 | A kind of concrete for hydraulic structure surface peening patching material and its application |
| CN113698170A (en) * | 2021-09-08 | 2021-11-26 | 纳思同(无锡)科技发展有限公司 | High-performance pervious concrete rapid repairing material and preparation method and application thereof |
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| Publication number | Publication date |
|---|---|
| CN101817663B (en) | 2013-01-23 |
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Application publication date: 20100901 Assignee: Chongqing Science and Technology Ltd. of Air China Assignor: Chongqing University Contract record no.: 2013500000064 Denomination of invention: Method for quickly repairing concrete road surface Granted publication date: 20130123 License type: Exclusive License Record date: 20130822 |
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