CN115477512A - Anti-rutting composite grouting material special for pavement and preparation method thereof - Google Patents
Anti-rutting composite grouting material special for pavement and preparation method thereof Download PDFInfo
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- CN115477512A CN115477512A CN202211068193.5A CN202211068193A CN115477512A CN 115477512 A CN115477512 A CN 115477512A CN 202211068193 A CN202211068193 A CN 202211068193A CN 115477512 A CN115477512 A CN 115477512A
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- grouting material
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- agent
- rutting
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Classifications
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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
- C04B28/02—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
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
-
- 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
-
- 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
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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)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a special grouting material for an anti-rutting composite pavement and a preparation method thereof, wherein the grouting material comprises ordinary portland cement, fly ash, glass beads, aromatic oil, a water reducing agent, a retarder, redispersible latex powder, a water-retaining agent, a defoaming agent, an expanding agent, cellulose ether and water glass; the preparation method comprises the steps of mixing ordinary portland cement, fly ash, glass beads, cellulose ether, a water reducing agent, a retarder, redispersible latex powder and an expanding agent to prepare a first mixture; and mixing the aromatic oil, the water-retaining agent, the defoaming agent and the water glass to prepare a second mixture, and independently packaging the first mixture and the second mixture to prepare the grouting material. The grouting material has excellent fluidity and small shrinkage deformation amount under the condition of ensuring reasonable water-cement ratio, improves the volume stability of the grouting material, reduces the cracking risk of the grouting material, and further improves the rutting resistance of the pavement prepared by the grouting material; meanwhile, the grouting material is convenient in preparation process and strong in operability.
Description
Technical Field
The invention belongs to the field of grouting materials, and particularly relates to a special anti-rutting composite grouting material for a pavement and a preparation method thereof.
Background
The asphalt concrete pavement is the main pavement form of urban roads in China, but the bearing capacity and the stability of the asphalt concrete pavement are greatly influenced by temperature. Under the condition of high temperature in summer, the viscosity of asphalt in the asphalt mixture is reduced, the binding force among aggregates is weakened, the strength and the deformation resistance of the pavement are reduced, and at the moment, under the load action of vehicles, the asphalt concrete pavement is easy to generate track deformation. In order to improve the road construction quality and the driving comfort, semi-flexible pavements have been proposed in developed countries and are used for paving roads of various grades and urban roads. At present, the material types of semi-flexible pavement include three main types of cement grouting asphalt concrete, cement asphalt concrete and emulsified asphalt cement concrete. The semi-flexible cement asphalt concrete pavement is a novel pavement structure form with rigidity and flexibility, and is formed by pouring cement mortar meeting certain performance requirements into a large-gap matrix asphalt mixture.
The grouting materials used for roads at present mainly comprise cement, cement and water glass, and cement and fly ash. The use of these slurries as grouting materials generally requires the use of relatively large water-to-cement ratios, often 0.4 to 0.8 and even greater, for better workability. Although the fluidity of the grout can be improved by improving the water-cement ratio of the grout, the stability of the grout is poor, the bleeding layering is serious, the grout is easy to segregate under the action of grouting pressure, the shrinkage is large, and finally the grouting material is easy to crack, low in strength and poor in anti-rutting performance.
Therefore, the grouting material which can ensure that the fluidity of the grouting material is excellent and the shrinkage deformation is small in a reasonable water-cement ratio range and further the anti-rutting performance of the pavement is improved is urgently needed.
Disclosure of Invention
The purpose of the invention is as follows: the first purpose of the invention is to provide a grouting material which can improve the fluidity and reduce the shrinkage in a reasonable water-cement ratio range;
the second purpose of the invention is to provide a preparation method of the grouting material.
The technical scheme is as follows: the invention relates to a special grouting material for an anti-rutting composite pavement, which comprises the following raw materials in parts by weight: 50-100 parts of ordinary portland cement, 50-100 parts of fly ash, 20-40 parts of glass beads, 5-10 parts of aromatic oil, 5-10 parts of a water reducing agent, 0.5-1 part of a retarder, 2-4 parts of redispersible latex powder, 1-3 parts of a water-retaining agent, 3-6 parts of a defoaming agent, 1-3 parts of an expanding agent, 5-8 parts of cellulose ether and 1-2 parts of water glass.
According to the grouting material, the glass beads, the aromatic oil and the cellulose ether are added into the raw materials, and the addition of the glass beads and the cellulose ether is relied on, so that on one hand, the aromatic oil can be uniformly dispersed in a grouting material system, and the fluidity of the grouting material is improved; on the other hand, compared with the existing aggregate, the glass beads serving as the aggregate of the grouting material can also improve the fluidity of a grouting material system due to the smooth structural characteristic, and further are combined with an expanding agent, so that the shrinkage of the grouting material is effectively reduced, and the cracking of the grouting material is avoided; in addition, the addition of the aromatic oil can relieve the rapid loss of water in the grouting material system because the density of the aromatic oil is slightly lower than that of water, and further relieve the cracking phenomenon of the grouting material.
Furthermore, the water cement ratio of the grouting material is 0.28-0.35.
Furthermore, the water reducing agent adopted by the grouting material can be a lignin water reducing agent or a polycarboxylic acid water reducing agent.
Furthermore, the retarder adopted by the grouting material can be borax or boric acid.
Furthermore, the water-retaining agent adopted by the grouting material can be polyacrylamide, sodium polyacrylate, potassium polyacrylate or ammonium polyacrylate.
Furthermore, the defoaming agent adopted by the grouting material can be an organic silicon type defoaming agent.
Furthermore, the swelling agent adopted by the grouting material can be calcium oxide or magnesium oxide swelling agent.
Furthermore, the cellulose ether used in the grouting material can be methyl cellulose, carboxymethyl cellulose or hydroxypropyl methyl cellulose.
The method for preparing the anti-rutting composite grouting material special for the pavement comprises the following steps: mixing ordinary portland cement, fly ash, glass beads, cellulose ether, a water reducing agent, a retarder, redispersible latex powder and an expanding agent in parts by weight to prepare a first mixture; and mixing the aromatic oil, the water-retaining agent, the defoaming agent and the water glass to prepare a second mixture, and independently packaging the first mixture and the second mixture to prepare the grouting material.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: the grouting material has excellent fluidity and small shrinkage deformation under the condition of ensuring a reasonable water-cement ratio, improves the volume stability of the grouting material, reduces the cracking risk of the grouting material, and further improves the rutting resistance of a pavement prepared by the grouting material; meanwhile, the grouting material is convenient and fast in preparation process and strong in operability.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the following examples.
Example 1
The raw material composition of the grouting material of this example 1 is shown in table 1 below.
Table 1 grouting material composition of example 1
| Serial number | Raw materials | Content/portion |
| 1 | Ordinary portland cement | 90 |
| 2 | Fly ash | 80 |
| 3 | Glass micro-beads | 30 |
| 4 | Aromatic oil | 8 |
| 5 | Lignin water reducing agent | 8 |
| 6 | Borax | 0.7 |
| 7 | Redispersible latex powder | 3 |
| 8 | Polyacrylamide | 2 |
| 9 | Organosilicon type defoaming agent | 4 |
| 10 | Calcium oxide | 2 |
| 11 | Methyl cellulose | 6 |
| 12 | Water glass | 1.5 |
Example 2
The raw material composition of the grouting material of this example 2 is shown in table 2 below.
Table 2 grouting material composition of example 2
| Serial number | Raw materials | Content/portion |
| 1 | Ordinary portland cement | 85 |
| 2 | Fly ash | 90 |
| 3 | Glass micro-beads | 35 |
| 4 | Aromatic oil | 7 |
| 5 | Polycarboxylic acid water reducing agent | 7 |
| 6 | Boric acid | 0.6 |
| 7 | Redispersible latex powder | 4 |
| 8 | Polyacrylamide sodium salt | 2 |
| 9 | Organosilicon type defoaming agent | 5 |
| 10 | Magnesium oxide | 2 |
| 11 | Carboxymethyl cellulose | 7 |
| 12 | Water glass | 2 |
Example 3
The raw material composition of the grouting material of this example 3 is shown in the following table 3.
Table 3 grouting material composition of example 3
| Serial number | Raw materials | Content/portion |
| 1 | Ordinary portland cement | 100 |
| 2 | Fly ash | 50 |
| 3 | Glass micro-beads | 20 |
| 4 | Aromatic oil | 5 |
| 5 | Polycarboxylic acid water reducing agent | 5 |
| 6 | Boric acid | 0.5 |
| 7 | Redispersible latex powder | 2 |
| 8 | Polyacrylonitrile potassium salt | 1 |
| 9 | Organosilicon type defoaming agent | 3 |
| 10 | Calcium oxide | 1 |
| 11 | Carboxymethyl cellulose | 5 |
| 12 | Water glass | 1 |
Example 4
The raw material composition of the grouting material of this example 4 is shown in table 4 below.
Table 4 grouting material composition of example 4
The preparation method of the grouting material of the embodiment comprises the following steps:
mixing ordinary portland cement, fly ash, glass beads, cellulose ether, a water reducing agent, a retarder, redispersible latex powder and an expanding agent in parts by weight to prepare a first mixture; and mixing the aromatic oil, the water-retaining agent, the defoaming agent and the water glass to prepare a second mixture, and independently packaging the first mixture and the second mixture to prepare the grouting material.
Comparative example
The basic components of the raw materials were the same as in example 1, except that quartz sand was used as the aggregate, which is specifically shown in table 5 below.
TABLE 5 grouting material composition of example 5
| Serial number | Raw materials | Content/portion |
| 1 | Ordinary portland cement | 90 |
| 2 | Fly ash | 80 |
| 3 | Quartz sand | 30 |
| 4 | Aromatic oil | 8 |
| 5 | Lignin water reducing agent | 8 |
| 6 | Borax | 0.7 |
| 7 | Redispersible latex powder | 3 |
| 8 | Polyacrylamide | 2 |
| 9 | Organosilicon type defoaming agent | 4 |
| 10 | Calcium oxide | 2 |
| 11 | Methyl cellulose | 6 |
| 12 | Water glass | 1.5 |
The preparation method of the grouting material of the comparative example comprises the following steps: mixing ordinary portland cement, fly ash, quartz sand, cellulose ether, a water reducing agent, a retarder, redispersible latex powder and an expanding agent according to parts by weight to prepare a first mixture; and mixing the aromatic oil, the water-retaining agent, the defoaming agent and the water glass to prepare a second mixture, and independently packaging the first mixture and the second mixture to prepare the grouting material.
The construction process of the composite type pavement special grouting material related to the embodiments 1 to 4 and the comparative example is as follows:
adding the first mixture and the second mixture in the grouting materials prepared in the embodiments 1-4 and the comparative example 1 into water according to the water cement ratio of 0.3, respectively pouring the mixture on the surface of the asphalt mixture pavement with the porosity of 25% after stirring and dispersing uniformly, flattening the grouting material by using a flattening device after the grouting is full, reserving a certain structural depth, covering rock wool with a certain thickness, and maintaining for about 3 hours at the maintenance temperature of about 50 ℃.
Performance detection
Referring to technical Specification of road perfusion type semi-flexible pavement T/CECS G: the results of the tests carried out according to the relevant specifications in D51-01-2019 are shown in the following Table 6, wherein the 7D flexural strength of the grouting material is not less than 2MPa, and the compressive strength is not less than 15MPa.
TABLE 6 grouting material performance test results of examples 1-4 and comparative examples
As can be seen from Table 1, the fluidity, the bleeding rate and the dry shrinkage performance of the grouting material prepared by the invention can exceed the technical requirements of regulations. Therefore, the grouting material of the invention can have high fluidity and low shrinkage rate under the condition of low water-cement ratio. After high-temperature curing, the compressive strength and the flexural strength can reach the specification technology, and the high-temperature-resistant steel plate has excellent compressive and flexural properties. In addition, the grouting material of the invention can still obtain the same performance under the condition of 0.28-0.35 water cement ratio.
Claims (9)
1. The anti-rutting composite grouting material special for the pavement is characterized by comprising the following raw materials in parts by weight: 50-100 parts of ordinary portland cement, 50-100 parts of fly ash, 20-40 parts of glass beads, 5-10 parts of aromatic oil, 5-10 parts of a water reducing agent, 0.5-1 part of a retarder, 2-4 parts of redispersible latex powder, 1-3 parts of a water-retaining agent, 3-6 parts of a defoaming agent, 1-3 parts of an expanding agent, 5-8 parts of cellulose ether and 1-2 parts of water glass.
2. The anti-rutting composite grouting material special for pavements as claimed in claim 1, characterized in that: the water-cement ratio of the grouting material is 0.28-0.35.
3. The anti-rutting composite grouting material special for pavements as claimed in claim 1, characterized in that: the water reducing agent is a lignin water reducing agent or a polycarboxylic acid water reducing agent.
4. The anti-rutting composite grouting material special for pavements as claimed in claim 1, characterized in that: the retarder is borax or boric acid.
5. The special grouting material for the anti-rutting composite pavement according to claim 1, which is characterized in that: the water-retaining agent is polyacrylamide, sodium polyacrylate, potassium polyacrylate or ammonium polyacrylate.
6. The special grouting material for the anti-rutting composite pavement according to claim 1, which is characterized in that: the defoaming agent is an organic silicon type defoaming agent.
7. The anti-rutting composite grouting material special for pavements as claimed in claim 1, characterized in that: the expanding agent is calcium oxide or magnesium oxide.
8. The anti-rutting composite grouting material special for pavements as claimed in claim 1, characterized in that: the cellulose ether is methyl cellulose, carboxymethyl cellulose or hydroxypropyl methyl cellulose.
9. The method for preparing the special grouting material for the anti-rutting composite pavement as claimed in claim 1 is characterized by comprising the following steps: mixing ordinary portland cement, fly ash, glass beads, cellulose ether, a water reducing agent, a retarder, redispersible latex powder and an expanding agent in parts by weight to prepare a first mixture; and mixing the aromatic oil, the water-retaining agent, the defoaming agent and the water glass to prepare a second mixture, and independently packaging the first mixture and the second mixture to prepare the grouting material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211068193.5A CN115477512A (en) | 2022-08-31 | 2022-08-31 | Anti-rutting composite grouting material special for pavement and preparation method thereof |
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| CN202211068193.5A CN115477512A (en) | 2022-08-31 | 2022-08-31 | Anti-rutting composite grouting material special for pavement and preparation method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002129097A (en) * | 2000-10-20 | 2002-05-09 | Kanegafuchi Chem Ind Co Ltd | Curable resin composition for overcoat and coated product composed of applying the same |
| CN101700970A (en) * | 2009-11-17 | 2010-05-05 | 武汉理工大学 | Rubber-cement grouting material applied to semi-flexible pavement |
| CN104402345A (en) * | 2014-11-28 | 2015-03-11 | 中建商品混凝土成都有限公司 | High fluidization micro expansive high-strength grouting material |
| CN104926242A (en) * | 2015-05-29 | 2015-09-23 | 湖北中桥科技有限公司 | Concrete crack repair grouting material and preparation method thereof |
| CN107879702A (en) * | 2017-12-06 | 2018-04-06 | 辽宁省交通科学研究院有限责任公司 | A kind of early-strength half-flexible pavement cement-based grouting material |
| CN109665780A (en) * | 2019-01-28 | 2019-04-23 | 上海恒福科技发展有限公司 | A kind of high flowability reinforcing steel bar connecting sleeve tube grouting material and preparation method thereof |
| CN111943614A (en) * | 2020-08-18 | 2020-11-17 | 重庆沥智路桥工程有限公司 | Grouting material for semi-flexible pavement and preparation method and application thereof |
-
2022
- 2022-08-31 CN CN202211068193.5A patent/CN115477512A/en active Pending
Patent Citations (7)
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| JP2002129097A (en) * | 2000-10-20 | 2002-05-09 | Kanegafuchi Chem Ind Co Ltd | Curable resin composition for overcoat and coated product composed of applying the same |
| CN101700970A (en) * | 2009-11-17 | 2010-05-05 | 武汉理工大学 | Rubber-cement grouting material applied to semi-flexible pavement |
| CN104402345A (en) * | 2014-11-28 | 2015-03-11 | 中建商品混凝土成都有限公司 | High fluidization micro expansive high-strength grouting material |
| CN104926242A (en) * | 2015-05-29 | 2015-09-23 | 湖北中桥科技有限公司 | Concrete crack repair grouting material and preparation method thereof |
| CN107879702A (en) * | 2017-12-06 | 2018-04-06 | 辽宁省交通科学研究院有限责任公司 | A kind of early-strength half-flexible pavement cement-based grouting material |
| CN109665780A (en) * | 2019-01-28 | 2019-04-23 | 上海恒福科技发展有限公司 | A kind of high flowability reinforcing steel bar connecting sleeve tube grouting material and preparation method thereof |
| CN111943614A (en) * | 2020-08-18 | 2020-11-17 | 重庆沥智路桥工程有限公司 | Grouting material for semi-flexible pavement and preparation method and application thereof |
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| Title |
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| 田文玉等: "《路基工程新技术实用全书》", vol. 1, 人民交通出版社, pages: 2103 - 2106 * |
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