CN114133192A - High-strength rapid repairing material special for airport runway - Google Patents
High-strength rapid repairing material special for airport runway Download PDFInfo
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- CN114133192A CN114133192A CN202111430617.3A CN202111430617A CN114133192A CN 114133192 A CN114133192 A CN 114133192A CN 202111430617 A CN202111430617 A CN 202111430617A CN 114133192 A CN114133192 A CN 114133192A
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- 239000000463 material Substances 0.000 title claims abstract description 82
- 239000004568 cement Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910021487 silica fume Inorganic materials 0.000 claims abstract description 11
- 239000000701 coagulant Substances 0.000 claims abstract description 10
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 9
- 239000004576 sand Substances 0.000 claims abstract description 7
- 230000008439 repair process Effects 0.000 claims description 45
- 239000002994 raw material Substances 0.000 claims description 11
- 239000006004 Quartz sand Substances 0.000 claims description 8
- 239000012784 inorganic fiber Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 5
- 239000012745 toughening agent Substances 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 239000002562 thickening agent Substances 0.000 claims description 4
- 239000002518 antifoaming agent Substances 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 15
- 238000009833 condensation Methods 0.000 abstract description 5
- 230000005494 condensation Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 150000004645 aluminates Chemical class 0.000 abstract 2
- 239000003292 glue Substances 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 2
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 description 2
- 239000004137 magnesium phosphate Substances 0.000 description 2
- 229960002261 magnesium phosphate Drugs 0.000 description 2
- 229910000157 magnesium phosphate Inorganic materials 0.000 description 2
- 235000010994 magnesium phosphates Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011433 polymer cement mortar Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
Images
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
- C04B28/06—Aluminous 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
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/72—Repairing or restoring existing buildings or building 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/05—Materials having an early high strength, e.g. allowing fast demoulding or formless casting
-
- 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)
- Road Paving Structures (AREA)
- Road Repair (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a special high-strength rapid repairing material for airport runways, which comprises, by weight, 500 parts of 350-fold sand-containing aluminate cement, 500 parts of 400-fold sand-containing aluminate cement, 20-100 parts of silica fume, 2-3 parts of a water reducing agent, 0.1-1 part of a coagulant, 1-5 parts of a retarder and 80-140 parts of water, wherein the water-to-glue ratio is 0.20-0.26. The invention selects special cement sulphoaluminate cement and silica fume to combine, ensures that the later strength is not shrunk on the basis of meeting the requirements of quick hardening and early strength, and the obtained high-strength quick repairing material meets the construction performance of 15-20 minutes, has the characteristics of high condensation rate and high early strength, and meets the performance index requirements of site maintenance technical guidelines (AC-140-CA-2010-3) of civil airport flight area on airport cement concrete pavement superficial repairing materials.
Description
Technical Field
The invention relates to the field of road repairing materials, in particular to a special high-strength rapid repairing material for an airport runway.
Background
The airport flight area is the core management area of the airport safety, the runway is the most core and most basic production and operation hardware facility of the civil aviation airport, and the cracks, ruts, chaps and subsidence conditions on the surface of the runway of the airport are increasingly serious, so that the surface performance of the runway is directly damaged, the foundation strength is reduced, and the flight safety of the airplane is seriously threatened. According to research, the rainbow bridge airport carries out maintenance on 1000 parts of airport parking apron and road surface every year, the operation time is from one to five hours in the morning when a flight stops working, in order to not influence the normal traffic of the flight, the high-quality and high-standard rapid repair needs to be carried out on the road surface, the one-hour compression resistance and the rupture strength of a repair material are required to meet the navigation requirement, and meanwhile, the construction performance and the higher later strength within a certain time need to be met.
At present, common portland cement (OPC) often causes interface damage due to larger self-shrinkage stress, and the bonding force of new and old concrete is poor; the Magnesium Phosphate Cement (MPC) has the characteristics of low dry shrinkage, short setting time, good compatibility and high bonding strength with a concrete base layer. However, because MPC is abnormally sensitive to ambient temperature, its hydration process is greatly affected by temperature, resulting in an uncontrolled setting time. The polymer cement mortar has the defects of poor aging resistance, difficult material storage, higher technical requirements on constructors due to field preparation, higher production cost and construction cost and the like. The special cement has certain advantages in being applied to road repairing materials, and how to obtain the special rapid repairing material for the airport runway, which has the advantages of high condensation rate, high early strength and good construction performance, through material modification and formula design on the basis of the special cement, has important significance in prolonging the service life of the airport runway and ensuring the take-off safety of airplanes.
Disclosure of Invention
In order to solve the problem that the repair material for the airport runway in the current market has good construction performance and high strength, the invention mainly aims to provide the special high-strength rapid repair material for the airport runway, which combines sulphoaluminate cement and silica fume, ensures that the later strength is not shrunk on the basis of meeting the requirements of rapid hardening and early strength, improves the mechanical toughness of the repair material by utilizing a toughening agent, and simultaneously ensures the construction performance of the repair material for 15min and the mechanical performance of the repair material for 1h by adding a proper additive.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a special high-strength rapid repairing material for an airport runway, which comprises the following components in parts by weight: 500 portions of sulphate aluminium cement 350-containing material, 500 portions of sand 400-containing material, 20-100 portions of silica fume, 2-3 portions of water reducing agent, 0.1-1 portion of coagulant, 1-5 portions of retarder and 80-140 portions of water, wherein the water-cement ratio is 0.20-0.26.
Preferably, the sand is quartz sand, and the particle size of the sand is 8-30 meshes.
Preferably, the special high-strength rapid repair material for the airport runway further comprises 1-8 parts by weight of a toughening agent.
More preferably, the toughening agent is an inorganic fiber.
Preferably, the special high-strength rapid repair material for the airport runway further comprises 0.1-0.5 part of water-retaining thickener in parts by weight.
Preferably, the special high-strength rapid repair material for the airport runway further comprises 0.01-0.05 part by weight of a defoaming agent.
Preferably, the initial fluidity of the high-strength rapid repair material special for the airport runway is 260-290 mm, and the fluidity after 20 minutes is 230-258 mm.
Preferably, the 1-hour compressive strength, the 1-hour flexural strength, the 28-day compressive strength and the 28-day flexural strength of the high-strength rapid repair material special for the airport runway are respectively 35-41 MPa, 5-8 MPa, 85-89 MPa and 8.9-12.1 MPa.
The invention also provides a preparation method of the special high-strength rapid repair material for the airport runway, which comprises the following steps:
s1, weighing the raw materials according to the mass ratio;
s2, uniformly mixing the raw materials except the water in the step S1 to obtain a dry material;
and S3, pouring water into the mixed dry materials, and stirring for not less than 180S until the slurry state is uniform.
The invention provides application of a special high-strength rapid repairing material for an airport runway in rapid repairing of the surface of the airport runway.
Compared with the existing rapid repair material, the high-strength rapid repair material special for the airport runway has the advantages that on the premise of meeting the construction performance of 15-20 minutes, the compressive strength of 35-41 MPa in 1 hour, the breaking strength of 5-8 MPa in 28 days, the compressive strength of 85-89 MPa in 28 days and the breaking strength of 8.9-12.1 MPa in 28 days, has the characteristics of high setting rate, high early strength and good construction performance, solves the problems of insufficient bonding force with a base layer, difficulty in control of setting time, easiness in secondary cracking and poor durability of the repair material used in the current market, meets the performance index requirements of the repair material for the shallow cement road surface of the airport road in the technical guide for maintaining the civil airport flight area (AC-140-CA-2010-3), and has the main beneficial effects that:
(1) compared with the existing airport pavement patching material, the material can realize 1-hour quick patching and meet the requirement of airport takeoff on the pavement strength, and the construction performance of 15-20 minutes can be met by adjusting the mixing amount of the retarder and the coagulant.
(2) The high-performance inorganic fiber is used for toughening, so that the 1h compressive strength can be met, the high toughness is ensured, the cracking is not easy, and the 1h flexural strength is more than 5 MPa.
(3) Compared with the existing magnesium phosphate cement system in the market, the invention takes the sulphoaluminate cement as the base material, thus obviously saving the cost of raw materials.
Drawings
FIG. 1 is a flow test of a high-strength rapid repair material for airport runways in an embodiment; (a) an initial fluidity; (b) fluidity after 20 minutes.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The embodiment provides a special high-strength rapid repairing material for an airport runway, which is prepared from the following raw materials in parts by weight: 375 parts of sulphoaluminate cement, 440 parts of quartz sand, 75 parts of silica fume, 2.25 parts of water reducing agent, 0.2 part of coagulant, 1 part of retarder and 95 parts of water, and the preparation steps are as follows:
s1, weighing the raw materials according to the mass ratio;
s2, uniformly mixing the sulphoaluminate cement, the quartz sand, the silica fume, the water reducing agent, the coagulant and the retarder in the step S1 to prepare a dry material;
and S3, pouring water into the mixed dry material, and stirring for not less than 180S until the slurry state is uniform to obtain the rapid repair material.
Tests show that the initial fluidity of the special high-strength rapid repair material for the airport runway is 288mm, the fluidity is 258mm after the material is placed for 20 minutes, the fluidity is good, and the requirement of construction time of about 20 minutes can be met; the compressive strength in 1 hour is 40.0MPa, and the flexural strength is 6.5 MPa; the concrete repair material has the advantages that the 28-day compressive strength is 89MPa, the flexural strength is 8.9MPa, the later-period strength is not subjected to collapse, the concrete repair material has the characteristics of high condensation rate, high early-period strength and good construction performance, and meets the performance index requirements of the cement concrete pavement shallow repair material for the airport road in the technical guidance for maintaining the civil airport flight area (AC-140-CA-2010-3).
Example 2
The embodiment provides a special high-strength rapid repairing material for an airport runway, which is prepared from the following raw materials in parts by weight: 400 parts of sulphoaluminate cement, 440 parts of quartz sand, 50 parts of silica fume, 2.25 parts of water reducing agent, 0.2 part of heat preservation thickening agent, 0.3 part of coagulant, 2 parts of retarder and 120 parts of water, and the preparation steps are as follows:
s1, weighing the raw materials according to the mass ratio;
s2, uniformly mixing the cement, the quartz sand, the silica fume, the water reducing agent, the heat preservation thickening agent, the coagulant and the retarder in the step S1 to prepare a dry material;
and S3, pouring water into the mixed dry material, and stirring for not less than 180S until the slurry state is uniform to obtain the rapid repair material.
Tests prove that the initial fluidity of the special high-strength rapid repair material for the airport runway is 270mm, the fluidity is 230mm after the material is placed for 18 minutes, the fluidity is good, and the requirement of construction time of about 18 minutes can be met; the compressive strength in 1 hour is 35.7MPa, and the flexural strength is 6.0 MPa; the concrete repair material has the advantages that the 28-day compressive strength is 88.7MPa, the flexural strength is 9.5MPa, the later-period strength is not subjected to collapse, the concrete repair material has the characteristics of high condensation rate, high early-period strength and good construction performance, and meets the performance index requirements of the repair material for the shallow cement concrete pavement of the airport road in the technical guidance for maintaining the civil airport flight area (AC-140-CA-2010-3).
Example 3
The embodiment provides a special high-strength rapid repairing material for an airport runway, which is prepared from the following raw materials in parts by weight: 375 parts of sulphoaluminate cement, 440 parts of quartz sand, 75 parts of silica fume, 1 part of inorganic fiber, 2.25 parts of water reducing agent, 0.5 part of coagulant, 5 parts of retarder, 0.05 part of defoaming agent and 95 parts of water, and the preparation steps are as follows:
s1, weighing the raw materials according to the mass ratio;
s2, uniformly mixing the cement, the quartz sand, the silica fume, the inorganic fiber, the water reducing agent, the coagulant, the retarder and the defoamer in the step S1 to prepare a dry material, wherein the mixing time is properly prolonged to completely disperse the fibers due to the addition of the inorganic fiber;
and S3, pouring water into the mixed dry material, stirring for not less than 180S until the slurry state is uniform, and properly prolonging the stirring time until the inorganic fiber whiskers are uniformly dispersed to obtain the rapid repair material.
Tests show that the initial fluidity of the special high-strength rapid repair material for the airport runway is 260mm, the fluidity is 230mm after the material is placed for 20 minutes, the fluidity is good, and the requirement for construction time of about 20 minutes can be met; the compressive strength is 40.7MPa and the breaking strength is 7.2MPa within 1 hour; the concrete repair material has the advantages that the 28-day compressive strength is 85MPa, the flexural strength is 9.0MPa, the later-period strength is not subjected to collapse, the concrete repair material has the characteristics of high condensation rate, high early-period strength and good construction performance, and meets the performance index requirements of the cement concrete pavement shallow repair material for the airport road in the technical guidance for maintaining the civil airport flight area (AC-140-CA-2010-3).
Claims (10)
1. The high-strength rapid repairing material special for the airport runway is characterized by comprising the following components in parts by weight: 500 portions of sulphate aluminium cement 350-containing material, 500 portions of sand 400-containing material, 20-100 portions of silica fume, 2-3 portions of water reducing agent, 0.1-1 portion of coagulant, 1-5 portions of retarder and 80-140 portions of water, wherein the water-cement ratio is 0.20-0.26.
2. The high-strength rapid repair material special for the airport runway according to claim 1, wherein the sand is quartz sand, and the particle size is 8-30 meshes.
3. The high-strength rapid repair material special for the airport runway according to claim 1, characterized in that the material further comprises 1-8 parts by weight of toughening agent.
4. The high-strength rapid repair material special for the airport runway according to claim 3, wherein the toughening agent is inorganic fiber.
5. The high-strength rapid repair material special for the airport runway according to claim 1, characterized in that the material further comprises 0.1-0.5 parts by weight of water-retaining thickener.
6. The high-strength rapid repair material for the airport runway according to claim 1, characterized in that it further comprises 0.01-0.05 parts by weight of defoaming agent.
7. The high-strength rapid repair material for the airport runway according to any one of claims 1-6, wherein the preparation steps of the high-strength rapid repair material for the airport runway are as follows:
s1, weighing the raw materials according to the mass ratio;
s2, uniformly mixing the raw materials except the water in the step S1 to obtain a dry material;
and S3, pouring water into the mixed dry materials, and stirring for not less than 180S until the slurry state is uniform.
8. The high-strength rapid repair material for the airport runway according to any one of claims 1-6, wherein the initial fluidity is 260-290 mm, and the fluidity after 20 minutes is 230-258 mm.
9. The high-strength rapid repair material for the airport runway according to any one of claims 1-6, wherein the 1-hour compressive strength of the high-strength rapid repair material for the airport runway is 35-41 MPa, the 1-hour flexural strength is 5-8 MPa, the 28-day compressive strength is 85-89 MPa, and the 28-day flexural strength is 8.9-12.1 MPa.
10. The use of the high-strength rapid repair material for airport runways as defined in any one of claims 1 to 9 for rapid repair of the surfaces of airport runways.
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| CN202111430617.3A CN114133192A (en) | 2021-11-29 | 2021-11-29 | High-strength rapid repairing material special for airport runway |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115572126A (en) * | 2022-10-08 | 2023-01-06 | 新特新材料集团(河南)股份有限公司 | Ultra-early-strength UHPC premix for rush repair of airport runway |
| CN115745535A (en) * | 2022-12-06 | 2023-03-07 | 上海市建筑科学研究院有限公司 | High-toughness super-early-strength rapid road repairing material with large-volume steel slag solid waste |
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| CN110981375A (en) * | 2019-12-24 | 2020-04-10 | 河南省交通规划设计研究院股份有限公司 | Shrinkage-compensating rapid repairing material for bridge expansion joint |
| CN111574174A (en) * | 2020-05-28 | 2020-08-25 | 河北智晖建筑安装工程有限公司 | Quick-setting, quick-hardening, super-early-strength and high-crack-resistance pavement repairing material and preparation method thereof |
| CN112279601A (en) * | 2020-11-04 | 2021-01-29 | 天津水泥工业设计研究院有限公司 | Ultrahigh-performance concrete for rapid repair and preparation method thereof |
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| CN115572126A (en) * | 2022-10-08 | 2023-01-06 | 新特新材料集团(河南)股份有限公司 | Ultra-early-strength UHPC premix for rush repair of airport runway |
| CN115745535A (en) * | 2022-12-06 | 2023-03-07 | 上海市建筑科学研究院有限公司 | High-toughness super-early-strength rapid road repairing material with large-volume steel slag solid waste |
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