CN112250822A - Road grouting repair material and construction method thereof - Google Patents
Road grouting repair material and construction method thereof Download PDFInfo
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- CN112250822A CN112250822A CN202011156028.6A CN202011156028A CN112250822A CN 112250822 A CN112250822 A CN 112250822A CN 202011156028 A CN202011156028 A CN 202011156028A CN 112250822 A CN112250822 A CN 112250822A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
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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
- 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
- E01C23/09—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 for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
- E01C23/0966—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 for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for filling or priming, with or without working the surface of the filling or applying particulate material thereto, e.g. for filling the joints of stone-sett paving
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Repair (AREA)
Abstract
The invention discloses a road grouting repair material, which comprises a component A and a component B, wherein the component A comprises polyisocyanate and modified isocyanate, and the component B comprises polyether polyol, a cross-linking agent, a catalyst, a surfactant and a foaming agent. Determining the reinforcement point position of the pavement; drilling holes by using a drilling machine, and arranging a grouting pipe; determining and configuring grouting repair materials; the grouting repairing material is characterized in that the grouting repairing material is filled, the proportion of the grouting repairing material is improved on the basis of the prior art, the internal mixing strength of the grouting repairing material is effectively improved by adopting two components, and the two components are improved, so that the finally prepared grouting repairing material can effectively adapt to various conditions of roads, and a better repairing effect on the roads is achieved.
Description
Technical Field
The invention relates to the technical field of grouting materials, in particular to a road grouting repair material and a construction method thereof.
Background
Along with the increasing of traffic load, the maintenance requirements of highways and airports are gradually improved, and the grouting material has strong stability and good deformation resistance, and can realize quick open traffic so as to meet the requirements of high speed and heavy load of modern traffic. At present, although the existing grouting materials are various in types, the existing grouting materials are not used for road repair, and certain problems and defects exist, such as the loss of inorganic grouting materials under the condition of underground water, the poor durability of organic grouting materials and the like.
Disclosure of Invention
The invention provides a road grouting repair material and a construction method thereof, aiming at solving the problem that the existing grouting material cannot effectively adapt to various road conditions.
A road grouting repair material comprises, by weight, 50 parts of a component A and 50 parts of a component B, wherein the component A comprises, by weight, 80-90 parts of polyisocyanate and 10-20 parts of modified isocyanate, and the component B comprises, by weight, 40-60 parts of polyether polyol, 2.5-4 parts of a crosslinking agent, 0.1-0.5 part of a catalyst, 0.3-1.3 parts of a surfactant and 0-5 parts of a foaming agent.
Wherein the polyisocyanate comprises at least one of polymethylene polyphenyl polyisocyanate, isocyanate, diphenylmethane diisocyanate, 2, 4-diphenylmethane diisocyanate and 4, 4' -diphenylmethane diisocyanate.
Wherein the modified isocyanate comprises at least one of polyol modified diphenylmethane diisocyanate, hexamethylene-1, 6-diisocyanate, toluene diisocyanate and isophorone diisocyanate.
Wherein the polyether polyol comprises at least one of polypropylene oxide glycol, polyethylene glycol, polyether triol GP-306 and polyether tetraol 4110G.
The foaming agent is a compound of distilled water and monofluorodichloroethane, the surfactant is sodium dodecyl benzene sulfonate, and the catalyst is dibutyl dilaurate.
Wherein, the weight portion is 0 to 1 portion of distilled water, and the weight portion is 0 to 5 portions of monofluoro dichloroethane.
The invention also provides a construction method of the road grouting repair material, which comprises the following steps:
determining the reinforcement point position of the pavement;
drilling holes by using a drilling machine, and arranging a grouting pipe;
preparing experimental grouting repair materials according to the parts by weight, selecting the best parts by weight of grouting repair materials according to experimental results, preparing the grouting repair materials according to the best parts by weight and storing the grouting repair materials in a grouting repair material tank;
and starting a vacuum pump to inject the grouting repair material into the road surface, closing the vacuum pump after the injection is finished, and removing the equipment.
The method for determining the reinforcement point position of the pavement comprises the following steps:
performing nondestructive detection on the road, evaluating the performance of the road surface by using a deflectometer, and evaluating the cavity condition of the underground cavity by using ground penetrating radar;
analyzing the actual conditions of the pavement base and the roadbed according to the detection and evaluation result, determining the area needing to be repaired, reinforced and grouted, and marking on a drawing and a field;
arranging a drilling machine according to the marked position, and paving a rubber plate at the marked position;
the road surface is cleared up, accumulated water and sundries on the road surface are cleared up, and a fence is arranged to prevent non-construction personnel from entering.
The invention has the beneficial effects that: on the basis of the prior art, the proportion of the grouting repair material is improved, the internal mixing strength of the grouting repair material is effectively improved by adopting two components, and the two components are improved, so that the finally prepared grouting repair material can effectively adapt to various conditions of roads.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the construction process flow structure of a road grouting repair material and a construction method thereof.
FIG. 2 is a schematic view of a flow structure for determining a reinforcement point position of a pavement according to the road grouting repair material and the construction method thereof.
FIG. 3 is a schematic view of a flow structure of drilling by a drilling machine of the road grouting repair material and the construction method thereof.
FIG. 4 is a schematic view of a flow structure of a road grouting repair material and a construction method thereof for configuring an experimental grouting repair material.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 4, the present invention provides a technical solution:
a road grouting repair material comprises, by weight, 50 parts of a component A and 50 parts of a component B, wherein the component A comprises, by weight, 80-90 parts of polyisocyanate and 10-20 parts of modified isocyanate, and the component B comprises, by weight, 40-60 parts of polyether polyol, 2.5-4 parts of a crosslinking agent, 0.1-0.5 part of a catalyst, 0.3-1.3 parts of a surfactant and 0-5 parts of a foaming agent.
The construction method of the road grouting repair material comprises the road grouting repair material, and is characterized by further comprising the following steps of:
s101, determining reinforcement point positions of a road surface;
s102, drilling by using a drilling machine, and arranging a grouting pipe;
s103, preparing an experimental grouting repair material according to the weight part, selecting the best grouting repair material according to the experimental result, preparing the grouting repair material according to the best grouting repair material and storing the grouting repair material in a grouting repair material tank;
s104, starting a vacuum pump to inject the grouting repair material into the road surface, closing the vacuum pump after the injection is finished, and removing the equipment.
Further, the determining the reinforcement point position of the pavement comprises the following steps:
s201, performing nondestructive detection on the road, evaluating the performance of the road surface by using a deflectometer, and evaluating the cavity condition of an underground cavity by using ground penetrating radar;
s202, analyzing the actual conditions of the pavement base and the roadbed according to the detection and evaluation result, determining the area needing to be repaired, reinforced and grouted, and marking on a drawing and a field;
s203, setting a drilling machine according to the marked position, and paving a rubber plate at the marked position;
s204, cleaning the road surface, cleaning accumulated water and sundries on the road surface, and arranging a fence to prevent non-constructors from entering.
Further, the drilling with the drilling machine and the setting of the grouting pipe comprise the following steps:
s301, drilling holes according to the marked repairing and reinforcing grouting area by using a drilling machine, and enabling the drilled holes to be uniformly distributed into a quincunx structure;
s302 inserts a grout pipe into the borehole.
In this embodiment, the drilling hole distribution is plum blossom shape structure, when filling slip casting repair material, fills the drilling that is located the outside earlier, makes the slip casting repair material who pours into the soil body earlier circle the slip casting reinforcing range, forms the boundary constraint and ensures the reinforcing effect in the drilling reinforcing range, simultaneously, adopts the mode of jumping the hole interval slip casting to effectively avoid the cross-bore phenomenon, promote the intensity and the constraint nature of slip casting downthehole thick liquid simultaneously.
Further, the step of configuring the experimental grouting repair material comprises the following steps:
s401, preparing a component A, and mixing and stirring polyisocyanate and modified isocyanate according to parts by weight to prepare the component A;
s402, preparing a component B, and mixing and stirring polyether polyol, a cross-linking agent, a catalyst, a surfactant and a foaming agent according to parts by weight to prepare the component B;
s403, mixing the component A and the component B according to the weight ratio of 50: mixing the components in a weight ratio of 50 to complete the preparation of the grouting repair material;
s404, placing the prepared grouting repair material in a grouting repair material tank;
and S405, communicating the vacuum pump, the grouting repair material tank and the grouting pipe in series.
Specific example 1:
determining reinforcement point positions of the road surface, performing road nondestructive testing, evaluating the performance of the road surface by using a deflectometer, and evaluating the cavity condition of an underground cavity by using ground penetrating radar detection;
analyzing the actual conditions of the pavement base and the roadbed according to the detection and evaluation result, determining the area needing to be repaired, reinforced and grouted, and marking on a drawing and a field;
arranging a drilling machine according to the marked position, and paving a rubber plate at the marked position;
cleaning the road surface, cleaning accumulated water, sundries and impurities on the road surface, arranging a fence to prevent non-constructors from entering,
drilling holes by using a drilling machine, arranging grouting pipes, and drilling holes according to the marked repairing and reinforcing grouting areas by using the drilling machine, wherein the drilling holes are uniformly distributed into quincunx structures;
the grouting pipe is inserted into the drilled hole,
preparing an experimental grouting repair material, and uniformly stirring and mixing 80 parts by weight of polymethylene polyphenyl polyisocyanate and 20 parts by weight of polyol modified diphenylmethane diisocyanate to prepare a component A;
a compound of 40 parts of polyoxypropylene glycol, 2.5 parts of ethylene glycol, 1 part of distilled water and 2 parts of monofluorodichloroethane, 0.3 part of sodium dodecylbenzenesulfonate and 0.1 part of dibutyl dilaurate were uniformly stirred and mixed to prepare a B component;
mixing the component A and the component B according to the proportion of 50: mixing the components in a weight ratio of 50 to obtain an experimental grouting repair material;
specific example 2:
determining reinforcement point positions of the road surface, performing road nondestructive testing, evaluating the performance of the road surface by using a deflectometer, and evaluating the cavity condition of an underground cavity by using ground penetrating radar detection;
analyzing the actual conditions of the pavement base and the roadbed according to the detection and evaluation result, determining the area needing to be repaired, reinforced and grouted, and marking on a drawing and a field;
arranging a drilling machine according to the marked position, and paving a rubber plate at the marked position;
cleaning the road surface, cleaning accumulated water, sundries and impurities on the road surface, arranging a fence to prevent non-constructors from entering,
drilling holes by using a drilling machine, arranging grouting pipes, and drilling holes according to the marked repairing and reinforcing grouting areas by using the drilling machine, wherein the drilling holes are uniformly distributed into quincunx structures;
the grouting pipe is inserted into the drilled hole,
preparing an experimental grouting repair material, and uniformly stirring and mixing 90 parts of diphenylmethane diisocyanate and 10 parts of hexamethylene-1, 6-diisocyanate in parts by weight to prepare a component A;
60 parts of polyoxypropylene glycol, 4 parts of ethylene glycol, 5 parts of monofluorodichloroethane, 1.3 parts of sodium dodecylbenzenesulfonate and 0.5 part of dibutyl dilaurate were uniformly stirred and mixed to prepare a B component;
mixing the component A and the component B according to the proportion of 50: mixing the components in a weight ratio of 50 to obtain an experimental grouting repair material;
specific example 3:
determining reinforcement point positions of the road surface, performing road nondestructive testing, evaluating the performance of the road surface by using a deflectometer, and evaluating the cavity condition of an underground cavity by using ground penetrating radar detection;
analyzing the actual conditions of the pavement base and the roadbed according to the detection and evaluation result, determining the area needing to be repaired, reinforced and grouted, and marking on a drawing and a field;
arranging a drilling machine according to the marked position, and paving a rubber plate at the marked position;
cleaning the road surface, cleaning accumulated water, sundries and impurities on the road surface, arranging a fence to prevent non-constructors from entering,
drilling holes by using a drilling machine, arranging grouting pipes, and drilling holes according to the marked repairing and reinforcing grouting areas by using the drilling machine, wherein the drilling holes are uniformly distributed into quincunx structures;
the grouting pipe is inserted into the drilled hole,
preparing an experimental grouting repair material, and uniformly stirring and mixing 85 parts of isocyanate and 15 parts of toluene diisocyanate in parts by weight to prepare a component A;
a compound of 50 parts of polyoxypropylene glycol, 3 parts of ethylene glycol, 1 part of distilled water and 3 parts of monofluorodichloroethane, 0.8 part of sodium dodecylbenzenesulfonate and 0.25 part of dibutyl dilaurate were uniformly stirred and mixed to prepare a component B;
mixing the component A and the component B according to the proportion of 50: mixing the components in a weight ratio of 50 to obtain the experimental grouting repair material.
By contrast, the grouting repair material in specific example 3 is prepared in the optimal weight part;
preparing a grouting repair material according to the optimal weight part and storing the grouting repair material in a grouting repair material tank;
and starting a vacuum pump to inject the grouting repair material into the road surface, closing the vacuum pump after the injection is finished, and removing the equipment.
On the basis of the prior art, the invention improves the formula of the grouting repair material and improves the construction method of the grouting repair material adaptively, so that the grouting repair material can effectively perform road repair work, and the problem that the viscosity of the grouting repair material is reduced to influence the development of the road repair work due to poor road environment is avoided.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The road grouting repair material is characterized by comprising, by weight, 50 parts of a component A and 50 parts of a component B, wherein the component A comprises, by weight, 80-90 parts of polyisocyanate and 10-20 parts of modified isocyanate, and the component B comprises, by weight, 40-60 parts of polyether polyol, 2.5-4 parts of a cross-linking agent, 0.1-0.5 part of a catalyst, 0.3-1.3 parts of a surfactant and 0-5 parts of a foaming agent.
2. The road grouting repair material of claim 1 wherein the polyisocyanate comprises at least one of polymethylene polyphenyl polyisocyanate, isocyanate, diphenylmethane diisocyanate, 2, 4-diphenylmethane diisocyanate and 4, 4' -diphenylmethane diisocyanate.
3. The road grouting repair material of claim 2 wherein the modified isocyanate comprises at least one of polyol modified diphenylmethane diisocyanate, hexamethylene-1, 6-diisocyanate, toluene diisocyanate and isophorone diisocyanate.
4. The road grouting repair material of claim 3, wherein the polyether polyol comprises at least one of polyoxypropylene glycol, polyethylene glycol, polyether triol GP-306 and polyether tetraol 4110G.
5. The road grouting repair material of claim 4, wherein the cross-linking agent is ethylene glycol, the foaming agent is a mixture of distilled water and monofluorodichloroethane, the surfactant is sodium dodecyl benzene sulfonate, and the catalyst is dibutyl dilaurate.
6. The road grouting repair material of claim 5, wherein the amount of the distilled water is 0 to 1 part by weight and the amount of the monofluorodichloroethane is 0 to 5 parts by weight.
7. A construction method of a road grouting repair material, comprising the road grouting repair material as claimed in claim 6, characterized by further comprising the steps of:
determining the reinforcement point position of the pavement;
drilling holes by using a drilling machine, and arranging a grouting pipe;
preparing experimental grouting repair materials according to the parts by weight, selecting the best parts by weight of grouting repair materials according to experimental results, preparing the grouting repair materials according to the best parts by weight and storing the grouting repair materials in a grouting repair material tank;
and starting a vacuum pump to inject the grouting repair material into the road surface, closing the vacuum pump after the injection is finished, and removing the equipment.
8. The construction method of road grouting repair material according to claim 7, wherein the step of determining the reinforcement points of the pavement comprises the steps of:
performing nondestructive detection on the road, evaluating the performance of the road surface by using a deflectometer, and evaluating the cavity condition of the underground cavity by using ground penetrating radar;
analyzing the actual conditions of the pavement base and the roadbed according to the detection and evaluation result, determining the area needing to be repaired, reinforced and grouted, and marking on a drawing and a field;
arranging a drilling machine according to the marked position, and paving a rubber plate at the marked position;
the road surface is cleared up, accumulated water and sundries on the road surface are cleared up, and a fence is arranged to prevent non-construction personnel from entering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011156028.6A CN112250822A (en) | 2020-10-26 | 2020-10-26 | Road grouting repair material and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011156028.6A CN112250822A (en) | 2020-10-26 | 2020-10-26 | Road grouting repair material and construction method thereof |
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| CN112250822A true CN112250822A (en) | 2021-01-22 |
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| CN202011156028.6A Pending CN112250822A (en) | 2020-10-26 | 2020-10-26 | Road grouting repair material and construction method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102516492A (en) * | 2011-11-29 | 2012-06-27 | 武汉工程大学 | Two-component polyurethane grouting material for repair and maintenance of road and preparation method thereof |
| CN103952966A (en) * | 2014-05-13 | 2014-07-30 | 青岛宇田化工有限公司 | Novel road foundation repair method |
| CN106397707A (en) * | 2016-08-31 | 2017-02-15 | 天津市管道工程集团有限公司 | Polyurethane material for reinforcement and restoration of foundation |
| CN106496503A (en) * | 2016-10-18 | 2017-03-15 | 上海华峰新材料研发科技有限公司 | Water non-sensitive type polyurethane injecting paste material and preparation method thereof |
-
2020
- 2020-10-26 CN CN202011156028.6A patent/CN112250822A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102516492A (en) * | 2011-11-29 | 2012-06-27 | 武汉工程大学 | Two-component polyurethane grouting material for repair and maintenance of road and preparation method thereof |
| CN103952966A (en) * | 2014-05-13 | 2014-07-30 | 青岛宇田化工有限公司 | Novel road foundation repair method |
| CN106397707A (en) * | 2016-08-31 | 2017-02-15 | 天津市管道工程集团有限公司 | Polyurethane material for reinforcement and restoration of foundation |
| CN106496503A (en) * | 2016-10-18 | 2017-03-15 | 上海华峰新材料研发科技有限公司 | Water non-sensitive type polyurethane injecting paste material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李娜等: "道路维修注浆材料研究进展", 《土工基础》 * |
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