CN110407516A - A kind of High aititude freeze thawing resistance road concrete - Google Patents
A kind of High aititude freeze thawing resistance road concrete Download PDFInfo
- Publication number
- CN110407516A CN110407516A CN201810388482.0A CN201810388482A CN110407516A CN 110407516 A CN110407516 A CN 110407516A CN 201810388482 A CN201810388482 A CN 201810388482A CN 110407516 A CN110407516 A CN 110407516A
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- CN
- China
- Prior art keywords
- freeze thawing
- thawing resistance
- concrete
- zeolite
- water
- 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.)
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1055—Coating or impregnating with inorganic materials
-
- 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
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
-
- 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)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Road Paving Structures (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention is intended to provide a kind of High aititude freeze thawing resistance road concrete.The concrete includes following component, and cement gathers materials, freeze thawing resistance buffering material, water-reducing agent, fiber, flyash, nanometer calcium carbonate, nanometer silicon carbide, and above-mentioned raw materials are calculated as 50-65:25-30:10-20:0.1-2:5-10:15-20:1-3:1-3 by weight.The performance of concrete of the present invention is as follows: frost thawing resistance concrete of the present invention passes through 350 frozen process experiments, and performance has no decline, and then performance is decreased obviously using the common C30 concrete of common additive.
Description
Technical field
The present invention relates to a kind of High aititude freeze thawing resistance road concrete, the concrete is mainly used for making in high altitude localities
For road concrete use, the freeze-thaw resistance of above-mentioned road concrete can be improved, low temperature from high altitude localities and round the clock
Destruction of the difference variation to road concrete extends the road occupation time limit.
Background technique
In high altitude localities, road concrete is easy to cause its own to be frozen due to long-term low temperature and day and night temperature variation
Melt situations such as damage then shrinks swelling cracking, therefore aobvious in the raising of high altitude localities road concrete freezing and thawing performance
It obtains particularly important.The previous freeze thawing capability-mode that improves mainly passes through the antifreezing agents such as salt, but adds the additives such as excessive salt
The corrosion resistance of concrete certainly will be caused to decline, especially the biggish area of low temperature and difference variation, concrete are more vulnerable to corruption
Erosion is to make durability significantly reduce.
Summary of the invention
The purpose of the present invention is intended to provide a kind of freeze thawing resistance road concrete used in high altitude localities.On realizing
Purpose is stated, the present invention is the following technical schemes are provided: it includes following component, cement gathers materials, freeze thawing resistance buffering material, water-reducing agent, fibre
Dimension, flyash, nanometer calcium carbonate, nanometer silicon carbide, above-mentioned raw materials are calculated as 50-65:25-30:10-20:0.1-2 by weight:
5-10:15-20:1-3:1-3, the water-reducing agent are polycarboxylate water-reducer, and the fiber is polypropylene fibre, and described to gather materials be broken
Stone and fine sand, rubble and fine sand mass ratio are 1-2:1.5-2；The freeze thawing resistance buffering material preferably includes following raw material with parts by weight
Meter: ethylene glycol 5-10, deionized water 10-15, tetradecane 20-40, magnesium sulfate 15-22, zeolite 16-25；The freeze thawing resistance buffering
The preparation of material includes the following steps: a, ethylene glycol, deionized water is formed mixture in 25-30 DEG C of stirring 30-50min；B, will
The tetradecane and magnesium sulfate are added in a step mixture, and 40~60min is stirred at 25~35 DEG C and obtains mixture；It c, again will be upper
It states mixture and enters to obtain the material in zeolite by vacuum suction.
The further preferably described modified processing of zeolite of the present invention, the modification include the following steps, a, by graphite
100-150 parts of deionized water ultrasonic disperses are added in 15-20 parts of alkene (by weight), form graphene dispersing solution；B, body is pressed again
The zeolite is immersed in above-mentioned dispersion liquid by product than 1:2, and dip time is 15-20 hours, and dipping temperature is that 40-55 is Celsius
Degree；C, drying and processing is finally carried out.
Preparing road concrete of the invention can be used following steps, weigh each raw material according to the proportion, then will be described each
Raw material mixing, is added suitable quantity of water as needed when to be onstructed.
The performance of concrete of the present invention is as follows: frost thawing resistance concrete of the present invention passes through 350 frozen process experiments, and performance has no
Decline, and then performance is decreased obviously using the common C30 concrete of common additive.
| Performance indicator | Freeze thawing resistance cycle-index/time | 28 days compression strength/MPa |
| Concrete of the present invention | Greater than 350 | Greater than 30 |
| Common C30 concrete | Less than 60 | Less than 20 |
Beneficial effect of the present invention
The invention avoids asked as what the corrosion resistance that road concrete brought by the antifreezing agents such as salt is excessively added declined
Topic, by freeze thawing resistance buffering material improve concrete low-temperature shrink expand caused by cracking the problems such as, avoid freeze thawing
Damage, freeze thawing resistance buffering material by it is compound it is organic be made with inorganic composite phase-change material etc., overcome it is single use it is inorganic
Or the defect of organic low-temperature phase-change material, the blank in the field is filled up, the present invention uses the type by many experiments
Raw material and proportion ensure that the intensity of concrete is also maintained in higher intensity, is made while freeze-thaw resistance, which obtains, to be improved
It is significantly improved with the time limit, in addition the present invention has made modification to zeolite, makes the carrier conductivity of heat durability of low-temperature phase-change material
Deng be improved significantly, the application field of zeolite is also obviously widened after modification, in terms of the materials such as road, building, medical treatment
Application prospect is extensive.
Specific embodiment
The following are specific examples of the present invention to further describe the present invention, but the present invention is not limited only to this.
Embodiment 1: raw material includes following component, and cement gathers materials, freeze thawing resistance buffering material, water-reducing agent, fiber, flyash, receives
Rice calcium carbonate, nanometer silicon carbide, above-mentioned raw materials are calculated as 50:25:15:0.5:5:15:1:2 by weight, and the water-reducing agent is poly-
Carboxylic acid water reducer, the fiber is polypropylene fibre, described to gather materials for rubble and fine sand, and rubble and fine sand mass ratio are 1-2:
1.5-2；Freeze thawing resistance buffering material preferably includes following raw material in parts by weight: ethylene glycol 6, deionized water 12, the tetradecane 25,
Magnesium sulfate 18, zeolite 21；The preparation of freeze thawing resistance buffering material, include the following steps: a, by ethylene glycol, deionized water in 25-
30 DEG C of stirring 30-50min form mixture；B, the tetradecane and magnesium sulfate are added in a step mixture, at 25~35 DEG C
40~60min of stirring obtains mixture；C, again said mixture is entered to obtain the material in zeolite by vacuum suction；In addition institute
The preferably modified processing of zeolite is stated, the modification includes the following steps, a, adds 15-20 parts of graphene (by weight)
Enter 100-150 parts of deionized water ultrasonic disperses, forms graphene dispersing solution；B, the zeolite is immersed in by 1:2 by volume again
In above-mentioned dispersion liquid, dip time is 15-20 hours, and dipping temperature is 40-55 degrees Celsius；C, drying and processing is finally carried out.
Embodiment 2: raw material includes following component, and cement gathers materials, freeze thawing resistance buffering material, water-reducing agent, fiber, flyash, receives
Rice calcium carbonate, nanometer silicon carbide, above-mentioned raw materials are calculated as 60:28:19:1:6:18:3:3 by weight, and the water-reducing agent is poly- carboxylic
Sour water-reducing agent, the fiber is polypropylene fibre, described to gather materials for rubble and fine sand, and rubble and fine sand mass ratio are 1-2:1.5-
2；The freeze thawing resistance buffering material preferably includes following raw material in parts by weight: ethylene glycol 8, deionized water 11, the tetradecane 30, sulfuric acid
Magnesium 18, zeolite 25；The preparation of freeze thawing resistance buffering material, include the following steps: a, by ethylene glycol, deionized water at 25-30 DEG C
It stirs 30-50min and forms mixture；B, the tetradecane and magnesium sulfate are added in a step mixture, are stirred at 25~35 DEG C
40~60min obtains mixture；C, again said mixture is entered to obtain the material in zeolite by vacuum suction.
The preferably described modified processing of zeolite of the present invention, the modification include the following steps, a, by graphene 15-20
100-150 parts of deionized water ultrasonic disperses are added in part (by weight), form graphene dispersing solution；B, 1:2 by volume again
The zeolite is immersed in above-mentioned dispersion liquid, dip time is 15-20 hours, and dipping temperature is 40-55 degrees Celsius；C, last
Carry out drying and processing.
In addition the specific embodiment of the invention does not constitute limiting to the claimed invention, passes through conventional technical means
Various changes should all be included in claim of the present invention.
Claims (2)
1. a kind of High aititude freeze thawing resistance road concrete, it is characterised in that: it includes following component, cement, gather materials, freeze thawing resistance it is slow
Slug, water-reducing agent, fiber, flyash, nanometer calcium carbonate, nanometer silicon carbide, above-mentioned raw materials are calculated as 50-65:25- by weight
30:10-20:0.1-2:5-10:15-20:1-3:1-3, the water-reducing agent are polycarboxylate water-reducer, and the fiber is that polypropylene is fine
Dimension, described to gather materials for rubble and fine sand, rubble and fine sand mass ratio are 1-2:1.5-2；The freeze thawing resistance buffering material preferably includes
Following raw material is in parts by weight: ethylene glycol 5-10, deionized water 10-15, tetradecane 20-40, magnesium sulfate 15-22, zeolite 16-
25；The preparation of freeze thawing resistance buffering material, include the following steps: a, by ethylene glycol, deionized water in 25-30 DEG C of stirring 30-
50min forms mixture；B, the tetradecane and magnesium sulfate are added in a step mixture, at 25~35 DEG C stir 40~
60min obtains mixture；C, again said mixture is entered to obtain the material in zeolite by vacuum suction.
2. concrete according to claim 1, it is characterised in that: the modified processing of zeolite, the modification packet
Following steps are included, 100-150 parts of deionized water ultrasonic disperses a, are added by 15-20 parts of graphene (by weight), form stone
Black alkene dispersion liquid；B, the zeolite is immersed in above-mentioned dispersion liquid by 1:2 by volume again, and dip time is 15-20 hours, leaching
Stain temperature is 40-55 degrees Celsius；C, drying and processing is finally carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810388482.0A CN110407516A (en) | 2018-04-26 | 2018-04-26 | A kind of High aititude freeze thawing resistance road concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810388482.0A CN110407516A (en) | 2018-04-26 | 2018-04-26 | A kind of High aititude freeze thawing resistance road concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110407516A true CN110407516A (en) | 2019-11-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810388482.0A Pending CN110407516A (en) | 2018-04-26 | 2018-04-26 | A kind of High aititude freeze thawing resistance road concrete |
Country Status (1)
| Country | Link |
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| CN (1) | CN110407516A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103193432A (en) * | 2013-03-13 | 2013-07-10 | 浙江建设职业技术学院 | Antifreezing concrete |
| CN103553464A (en) * | 2013-10-28 | 2014-02-05 | 安徽星华环保科技有限公司 | Curing agent containing modified nano calcium carbonate |
| CN104876529A (en) * | 2015-05-26 | 2015-09-02 | 芜湖鑫曜建材实业有限公司 | Cold region used antifreezing concrete |
| KR101811582B1 (en) * | 2017-05-26 | 2017-12-22 | 이진호 | Freeze protection type adhesion inhibitor for asphalt mixture and manufacturing method thereof |
-
2018
- 2018-04-26 CN CN201810388482.0A patent/CN110407516A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103193432A (en) * | 2013-03-13 | 2013-07-10 | 浙江建设职业技术学院 | Antifreezing concrete |
| CN103553464A (en) * | 2013-10-28 | 2014-02-05 | 安徽星华环保科技有限公司 | Curing agent containing modified nano calcium carbonate |
| CN104876529A (en) * | 2015-05-26 | 2015-09-02 | 芜湖鑫曜建材实业有限公司 | Cold region used antifreezing concrete |
| KR101811582B1 (en) * | 2017-05-26 | 2017-12-22 | 이진호 | Freeze protection type adhesion inhibitor for asphalt mixture and manufacturing method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 周艳华: "不同纳米碳酸钙含量对粉煤灰混凝土力学及抗冻性能的影响", 《科学技术与工程》 * |
| 周静: "《近代材料科学研究技术进展》", 31 December 2012, 武汉理工大学出版社 * |
| 饶中浩等: "《高等教育"十三五"规划教材 储能技术概论》", 31 January 2017, 中国矿业大学出版社 * |
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Application publication date: 20191105 |
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