CN107459327A - Suitable for low temperature or the fast repairing concrete material of construction in minus-temperature environment - Google Patents
Suitable for low temperature or the fast repairing concrete material of construction in minus-temperature environment Download PDFInfo
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- CN107459327A CN107459327A CN201710656709.0A CN201710656709A CN107459327A CN 107459327 A CN107459327 A CN 107459327A CN 201710656709 A CN201710656709 A CN 201710656709A CN 107459327 A CN107459327 A CN 107459327A
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- 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
- C04B28/34—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 cold phosphate binders
- C04B28/346—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 cold phosphate binders the phosphate binder being present in the starting composition as a mixture of free acid and one or more phosphates
- C04B28/348—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 cold phosphate binders the phosphate binder being present in the starting composition as a mixture of free acid and one or more phosphates the starting mixture also containing one or more reactive oxides
-
- 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
- C04B2111/76—Use at unusual temperatures, e.g. sub-zero
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- 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)
- Working Measures On Existing Buildindgs (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a kind of fast repairing concrete material for being applied to low temperature or construction in minus-temperature environment；The material is configured according to following ratio：100 parts of light burnt powder, 25~100 parts of potassium dihydrogen phosphate, 20~40 parts of water, 0~5 part of phosphoric acid, 8~12 parts of borax, 1~3 part of aluminum sulfate, 2~4 parts of flyash.The fast repairing concrete material involved in the present invention for being applied to low temperature or construction in minus-temperature environment, it disclosure satisfy that and Rapid-Repair is carried out to cement concrete pavement in the environment of 20 DEG C~10 DEG C；During using material face of the present invention to winter construction, it is not required to be heated mixing water or aggregate, carries out mix using normal-temperature water, it can significantly reduce restriction of the environment temperature to concrete pavement construction using the material of the present invention.
Description
Technical field
The invention belongs to pavement material field, it is related to cement concrete material, and in particular to one kind is applied to low temperature or negative
The fast repairing concrete material constructed under warm environment, be mainly used in airfield runway, highway concrete road surface and bridge, culvert,
The engineering first-aid repair operation such as tunnel.
Background technology
Cement concrete pavement is one of most common road surface types in highway engineering.Due to bearing vehicular load for a long time
With friction of the tire to ground, the defects of local damage just occurs in cement concrete pavement, such as repairing will be serious not in time
Influence service life and the traffic safety on road surface.However, existing quick-fix material of concrete pavement mostly can not be in subzero temperature
Under the conditions of construct.According to《Design of common concrete proportioning code》(JGJ 55-2011)《Concrete structure engineering is constructed and tested
Receive specification》(GB 50204–2015)《Standard for quality control of concrete》Requirement in (GB 50164-2011), concrete structure
If thing is constructed in the winter time, mixing water should be heated to 60~70 DEG C, or aggregate is heated, ensure that concrete is poured transporting to
Temperature when live is not lower than 15 DEG C.It is but such method huge energy consumption, cumbersome, it is difficult to ensure construction quality.
To solve this problem, it is girder pre-stressed to disclose a kind of low subzero temperature post-tensioning by the A of Chinese patent publication CN 102276218
Pipeline pneumatic mortar material, the lowest construction temperature of the material is -10 DEG C, but for severe cold areas such as China northeast and northwests, it is such a
Material can not still meet construction requirement.Therefore, the research of the fast repairing concrete material of low temperature or construction in minus-temperature environment is carried out
And improvement, there is highly important engineering application value.
In the prior art, the A of Chinese patent publication CN 103922695, which are disclosed, a kind of is used for high ferro ballastless track mortar layer
Quick to repair grout and mortar, the material has the early strength of superelevation, and 1h compression strength can reach more than 30MPa.Although the material
The mechanical property of material has enough advantages, but its execution conditions is constructed for normal temperature, it is impossible to meets the construction requirement of severe cold area.
In the prior art, also disclose the A of Chinese patent publication CN 104193239 disclose a kind of anti-cracking heat insulation mortar and
Its preparation method, its mortar invented have good cohesive, water-retaining property and thermal and insulating performance, and heat preservation and energy conservation effects are dashed forward
Go out, by using sepiolite cashmere, also with excellent cracking resistance.But it is only applicable to building by laying bricks or stones and plaster and applying for materials for wall
Work, and it does not possess the characteristics of characteristic of low-temperature construction and higher early strength, it is impossible to reach road pavement and carry out quickly
The purpose of repairing.
Based on above-mentioned the deficiencies in the prior art, the present invention successfully develops one kind and is applied to low temperature or construction in minus-temperature environment
Fast repairing concrete material, be mainly used in the engineering such as airfield runway, highway concrete road surface and bridge, culvert, tunnel and rob
Repair operation.
The content of the invention
For deficiencies of the prior art, it is an object of the invention to provide one kind to be applied to low temperature or subzero temperature ring
The fast repairing concrete material constructed under border, it is mainly used in airfield runway, highway concrete road surface and bridge, culvert, tunnel
Deng engineering first-aid repair operation.Material of the present invention is used to improve the service behaviour and power when fast repairing material is constructed in the winter time
Performance is learned, and reaches the purpose of quick open to traffic, solves existing fast repairing material workability when low temperature or subzero temperature construct
Difference, influence the technical problems such as cement concrete mechanical property.
In a first aspect, the present invention relates to a kind of fast repairing concrete material for being applied to low temperature or construction in minus-temperature environment
Material, the material are configured according to following ratio：
The light burnt powder involved in the present invention is magnesite light burnt powder, light calcined magnesia.The present invention is light using magnesite
It is about 2~3 times of reheating powder to burn powder as the raw material for preparing magnesium phosphate cement, its activity, and setting time is faster than common reheating
Magnesium phosphate cement prepared by powder, mechanical property are better than common magnesium phosphate cement.
Preferably, the calcining heat of the light burnt powder is 650 DEG C~950 DEG C.
Preferably, magnesia mass percentage content >=70% of the light burnt powder.
Preferably, the specific surface area of the light burnt powder is 240m2/ kg~340m2/kg。
Second aspect, the invention further relates to the foregoing fast repairing concrete for being applied to low temperature or construction in minus-temperature environment
The preparation method of material, methods described comprise the following steps：
Each raw material are well mixed by said ratio, you can standby.
Compared with prior art, the present invention has following beneficial effect：
(1) present invention selects patching material of the magnesium phosphate cement as concrete road surface, by changing borax volume, oxidation
Magnesium and phosphatic ratio control the setting time of magnesium phosphate cement, ensure that concrete transportation is plastic to job site
Property.
(2) present invention is about reheating powder as the raw material for preparing magnesium phosphate cement, its activity from magnesite light burnt powder
2~3 times, setting time is faster than the magnesium phosphate cement prepared by common reheating powder, and mechanical property is better than common magnesium phosphate cement.
(3) present invention reconciles the setting time of fast repairing material from phosphoric acid, reduces borax volume, magnesia and phosphoric acid
Influence of the ratio value changes of salt to fast repairing material performance.
(4) fast repairing concrete material involved in the present invention for being applied to low temperature or construction in minus-temperature environment, Neng Gouman
Foot carries out Rapid-Repair in the environment of -20 DEG C~10 DEG C to cement concrete pavement；Winter is applied using material face of the present invention
In man-hour, it is not required to be heated mixing water or aggregate, carries out mix using normal-temperature water, it can pole using the material of the present invention
The earth reduces restriction of the environment temperature to concrete pavement construction.
(5) fast repairing concrete material for being applied to low temperature or construction in minus-temperature environment of the invention, in -20 DEG C of constructions
When, its 4h compression strength 2 times of about common fast repairing material, significant effect, there is preferable economic benefit up to 25Mpa
Prospect.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Embodiment 1：
The present embodiment is related to a kind of fast repairing concrete material for being applied to low temperature or construction in minus-temperature environment, the material
Material is configured according to following ratio：
In terms of parts by weight, it is made up of following raw material：100 parts of light burnt powder, 25 parts of potassium dihydrogen phosphate, 2 parts of phosphoric acid, borax 8
Part, 3 parts of aluminum sulfate, 4 parts of flyash, 21.3 parts of water.
Wherein, the preparation method for the patching material that the present embodiment is related to, methods described comprise the following steps：
Each raw material are well mixed by said ratio, you can standby.
The application method for the patching material that the present embodiment is related to：The construction temperature for the fast patching material that the present embodiment is related to
To use under the conditions of -20 DEG C.
The performance test results of the present embodiment are as shown in table 1.
Embodiment 2：
The present embodiment is related to a kind of fast repairing concrete material for being applied to low temperature or construction in minus-temperature environment, the material
Material is configured according to following ratio：
In terms of parts by weight, it is made up of following raw material：100 parts of light burnt powder, 30 parts of potassium dihydrogen phosphate, phosphatase 11 part, borax 9
Part, 2 parts of aluminum sulfate, 3 parts of flyash, 20.3 parts of water.
Wherein, the preparation method for the patching material that the present embodiment is related to, methods described comprise the following steps：
Each raw material are well mixed by said ratio, you can standby.
The application method for the patching material that the present embodiment is related to：The construction temperature for the fast patching material that the present embodiment is related to
To use under the conditions of -20 DEG C.
The performance test results of the present embodiment are as shown in table 1.
Embodiment 3：
The present embodiment is related to a kind of fast repairing concrete material for being applied to low temperature or construction in minus-temperature environment, the material
Material is configured according to following ratio：
In terms of parts by weight, it is made up of following raw material：100 parts of light burnt powder, 100 parts of potassium dihydrogen phosphate, phosphatase 11 part, borax 8
Part, 1 part of aluminum sulfate, 2 parts of flyash, 29.68 parts of water.
Wherein, the preparation method for the patching material that the present embodiment is related to, methods described comprise the following steps：
Each raw material are well mixed by said ratio, you can standby.
The application method for the patching material that the present embodiment is related to：The construction temperature for the fast patching material that the present embodiment is related to
To use under the conditions of -20 DEG C.
The performance test results of the present embodiment are as shown in table 1.
Embodiment 4：
The present embodiment is related to a kind of fast repairing concrete material for being applied to low temperature or construction in minus-temperature environment, the material
Material is configured according to following ratio：
In terms of parts by weight, it is made up of following raw material：100 parts of light burnt powder, 50 parts of potassium dihydrogen phosphate, 2 parts of phosphoric acid, borax 10
Part, 2 parts of aluminum sulfate, 4 parts of flyash, 26.88 parts of water.
Wherein, the preparation method for the patching material that the present embodiment is related to, methods described comprise the following steps：
Each raw material are well mixed by said ratio, you can standby.
The application method for the patching material that the present embodiment is related to：The construction temperature for the fast patching material that the present embodiment is related to
To use under the conditions of 0 DEG C.
The performance test results of the present embodiment are as shown in table 1.
Embodiment 5：
The present embodiment is related to a kind of fast repairing concrete material for being applied to low temperature or construction in minus-temperature environment, the material
Material is configured according to following ratio：
In terms of parts by weight, it is made up of following raw material：100 parts of light burnt powder, 100 parts of potassium dihydrogen phosphate, phosphatase 11 part, borax 8
Part, 1 part of aluminum sulfate, 2 parts of flyash, 33.92 parts of water.
Wherein, the preparation method for the patching material that the present embodiment is related to, methods described comprise the following steps：
Each raw material are well mixed by said ratio, you can standby.
The application method for the patching material that the present embodiment is related to：The construction temperature for the fast patching material that the present embodiment is related to
To use under the conditions of 0 DEG C.
The performance test results of the present embodiment are as shown in table 1.
Embodiment 6：
The present embodiment is related to a kind of fast repairing concrete material for being applied to low temperature or construction in minus-temperature environment, the material
Material is configured according to following ratio：
In terms of parts by weight, it is made up of following raw material：100 parts of light burnt powder, 25 parts of potassium dihydrogen phosphate, 3 parts of phosphoric acid, borax 11
Part, 3 parts of aluminum sulfate, 4 parts of flyash, 21.9 parts of water.
Wherein, the preparation method for the patching material that the present embodiment is related to, methods described comprise the following steps：
Each raw material are well mixed by said ratio, you can standby.
The application method for the patching material that the present embodiment is related to：The construction temperature for the fast patching material that the present embodiment is related to
To use under the conditions of 0 DEG C.
The performance test results of the present embodiment are as shown in table 1.
Embodiment 7：
The present embodiment is related to a kind of fast repairing concrete material for being applied to low temperature or construction in minus-temperature environment, the material
Material is configured according to following ratio：
In terms of parts by weight, it is made up of following raw material：100 parts of light burnt powder, 25 parts of potassium dihydrogen phosphate, 5 parts of phosphoric acid, borax 12
Part, 3 parts of aluminum sulfate, 2 parts of flyash, 20.58 parts of water.
Wherein, the preparation method for the patching material that the present embodiment is related to, methods described comprise the following steps：
Each raw material are well mixed by said ratio, you can standby.
The application method for the patching material that the present embodiment is related to：The construction temperature for the fast patching material that the present embodiment is related to
To use under the conditions of 10 DEG C.
The performance test results of the present embodiment are as shown in table 1.
Embodiment 8：
The present embodiment is related to a kind of fast repairing concrete material for being applied to low temperature or construction in minus-temperature environment, the material
Material is configured according to following ratio：
In terms of parts by weight, it is made up of following raw material：100 parts of light burnt powder, 50 parts of potassium dihydrogen phosphate, 3 parts of phosphoric acid, borax 9
Part, 1 part of aluminum sulfate, 3 parts of flyash, 24.9 parts of water.
Wherein, the preparation method for the patching material that the present embodiment is related to, methods described comprise the following steps：
Each raw material are well mixed by said ratio, you can standby.
The application method for the patching material that the present embodiment is related to：The construction temperature for the fast patching material that the present embodiment is related to
To use under the conditions of 10 DEG C.
The performance test results of the present embodiment are as shown in table 1.
Embodiment 9：
The present embodiment is related to a kind of fast repairing concrete material for being applied to low temperature or construction in minus-temperature environment, the material
Material is configured according to following ratio：
In terms of parts by weight, it is made up of following raw material：100 parts of light burnt powder, 30 parts of potassium dihydrogen phosphate, phosphatase 24 part, borax 10
Part, 2 parts of aluminum sulfate, 3 parts of flyash, 23.84 parts of water.
Wherein, the preparation method for the patching material that the present embodiment is related to, methods described comprise the following steps：
Each raw material are well mixed by said ratio, you can standby.
The application method for the patching material that the present embodiment is related to：The construction temperature for the fast patching material that the present embodiment is related to
To use under the conditions of 10 DEG C.
The performance test results of the present embodiment are as shown in table 1.
Comparative example 1：
This comparative example provides a kind of fast repairing concrete material, in terms of parts by weight, is made up of following raw material：Reheating powder
100 parts, 30 parts of potassium dihydrogen phosphate, 9 parts of borax, 2 parts of aluminum sulfate, 3 parts of flyash, 20.16 parts of water.
Wherein, involved reheating powder is the pulverized powder after magnesite calcining, 1300 DEG C~1700 DEG C of calcining heat, is aoxidized
Content of magnesium >=70%, specific surface area 240m2/ kg~340m2/kg；A kind of construction temperature of involved fast repairing concrete material
Spend for -20 DEG C.
The performance test results of this comparative example are as shown in table 1.
Comparative example 2：
This comparative example provides a kind of fast repairing concrete material, in terms of parts by weight, is made up of following raw material：Reheating powder
100 parts, 50 parts of potassium dihydrogen phosphate, 10 parts of borax, 2 parts of aluminum sulfate, 4 parts of flyash, 26.56 parts of water.
Wherein, involved reheating powder is the pulverized powder after magnesite calcining, 1300 DEG C~1700 DEG C of calcining heat, is aoxidized
Content of magnesium >=70%, specific surface area 240m2/ kg~340m2/kg；A kind of construction temperature of involved fast repairing concrete material
Spend for 0 DEG C.
The performance test results of this comparative example are as shown in table 1.
Comparative example 3：
This comparative example provides a kind of fast repairing concrete material, in terms of parts by weight, is made up of following raw material：Reheating powder
100 parts, 50 parts of potassium dihydrogen phosphate, 9 parts of borax, 1 part of aluminum sulfate, 3 parts of flyash, 24.45 parts of water.
Wherein, involved reheating powder is the pulverized powder after magnesite calcining, 1300 DEG C~1700 DEG C of calcining heat, is aoxidized
Content of magnesium >=70%, specific surface area 240m2/ kg~340m2/kg；A kind of construction temperature of involved fast repairing concrete material
Spend for 10 DEG C.
The performance test results of this comparative example are as shown in table 1.
Comparative example 4：
This comparative example provides a kind of fast repairing concrete material, in terms of parts by weight, is made up of following raw material：Light burnt powder
100 parts, 30 parts of potassium dihydrogen phosphate, phosphatase 11 part, 9 parts of borax, 2 parts of aluminum sulfate, 3 parts of flyash, 20.16 parts of water.
Wherein, involved light burnt powder be magnesite calcining after pulverized powder, 650 DEG C~950 DEG C of calcining heat, magnesia
Content >=70%, specific surface area 240m2/ kg~340m2/kg；A kind of construction temperature of involved fast repairing concrete material
For -20 DEG C.
The performance test results of this comparative example are as shown in table 1.
Effect analysis：
To the cement paste in embodiment 1-9 and comparative example 1-4, according to GB/T 1346-2001《Cement normal consistency
Water consumption, setting time, the stability method of inspection》Carry out setting time test.After the fast repairing material shaping 4h of preparation, ginseng
According to《GB/T 17671-1999 Test method for strength of hydraulic cement mortar》Carry out Mechanics Performance Testing.The fluidity ginseng of fast repairing material
According to《GB/T8077-2000 Methods for testing uniformity of concrete admixture》Tested, expansion rate according to《JC/T313-2009 is swollen
Swollen cement and expanded rate test method》Tested.
Each embodiment the performance test results are as shown in table 1.
Table 1
Shown by the test data of above-mentioned table 1, when light burnt powder and phosphatic ratio is 1/2~1/3, phosphoric acid volume is 1
~4 parts, borax volume is 9~10 parts, and when aluminum sulfate volume is 2~3 parts, the properties of material for repairing are optimal, doping quantity of fly ash
It is little to material for repairing performance impact；Compared with using fast repairing concrete material of traditional reheating powder (comparative example 4) for raw material,
Using light burnt powder (embodiment 2) can effectively improve material for repairing in low temperature moulding (- 20 DEG C) mechanical property, reach quick height
Strong repairing purpose；Compared with comparative example 1-3 does not add the material for repairing of phosphoric acid, the use (embodiment 1-9) of phosphoric acid can have
Effect ground extends the setting time of material for repairing, material for repairing is reached the effect of Rapid-Repair and does not influence its formability.
In summary, the present invention effectively overcomes many defects of like product in the prior art, has low temperature can be into
The advantages that type is good, setting rate is fast, intensity is high, setting time is controllable, it can meet that road surface is quick high-strength at low ambient temperatures
The requirement of repairing, has high industrial utilization.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (5)
- A kind of 1. fast repairing concrete material for being applied to low temperature or construction in minus-temperature environment, it is characterised in that the material Configured according to following ratio：
- 2. the fast repairing concrete material according to claim 1 for being applied to low temperature or construction in minus-temperature environment, it is special Sign is that the calcining heat of the light burnt powder is 650 DEG C~950 DEG C.
- 3. a kind of fast repairing concrete material for being applied to low temperature or construction in minus-temperature environment according to claim 1, Characterized in that, magnesia mass percentage content >=70% of the light burnt powder.
- 4. a kind of fast repairing concrete material for being applied to low temperature or construction in minus-temperature environment according to claim 1, Characterized in that, the specific surface area of the light burnt powder is 240m2/ kg~340m2/kg。
- A kind of 5. system as claimed in claim 1 suitable for low temperature or the fast repairing concrete material of construction in minus-temperature environment Preparation Method, it is characterised in that methods described comprises the following steps：Each raw material are well mixed by said ratio, you can standby.
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Cited By (3)
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|---|---|---|---|---|
| CN108455963A (en) * | 2018-05-07 | 2018-08-28 | 苏州麦奇新型材料有限公司 | A kind of magnesium phosphate cement base pavement patching material and preparation method thereof |
| CN108558350A (en) * | 2018-07-04 | 2018-09-21 | 山东创能机械科技有限公司 | A kind of flyash injecting paste material and preparation method thereof |
| CN113968719A (en) * | 2021-12-02 | 2022-01-25 | 中国三冶集团有限公司 | Composite repairing material suitable for rapidly repairing road surface at negative temperature |
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| CN108455963A (en) * | 2018-05-07 | 2018-08-28 | 苏州麦奇新型材料有限公司 | A kind of magnesium phosphate cement base pavement patching material and preparation method thereof |
| CN108455963B (en) * | 2018-05-07 | 2020-10-27 | 苏州麦奇新型材料有限公司 | Magnesium phosphate cement-based pavement patching material and preparation method thereof |
| CN108558350A (en) * | 2018-07-04 | 2018-09-21 | 山东创能机械科技有限公司 | A kind of flyash injecting paste material and preparation method thereof |
| CN108558350B (en) * | 2018-07-04 | 2021-05-11 | 山东创能机械科技有限公司 | Fly ash grouting material and preparation method thereof |
| CN113968719A (en) * | 2021-12-02 | 2022-01-25 | 中国三冶集团有限公司 | Composite repairing material suitable for rapidly repairing road surface at negative temperature |
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Application publication date: 20171212 |