CN111574174A - Quick-setting, quick-hardening, super-early-strength and high-crack-resistance pavement repairing material and preparation method thereof - Google Patents
Quick-setting, quick-hardening, super-early-strength and high-crack-resistance pavement repairing material and preparation method thereof Download PDFInfo
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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
- C04B28/14—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 calcium sulfate cements
- C04B28/16—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 calcium sulfate cements containing anhydrite, e.g. Keene's cement
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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
- 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
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/20—Retarders
- C04B2103/22—Set retarders
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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
- 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
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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
- 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
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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
- 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
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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
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a rapid-setting rapid-hardening super-early-strength high-crack-resistance pavement patching material and a preparation method thereof, wherein the material is mainly prepared from the following raw materials in parts by weight: 16-20 parts of sulphoaluminate cement, 13-17 parts of Portland cement, 3-4 parts of a coagulant, 1-2 parts of fly ash, 1-2 parts of silica fume, 37-42 parts of graded river sand, 3.1-4.5 parts of a composite retarder, 0.01-0.02 part of an early strength agent, 0.2-0.3 part of a water reducing agent, 0.02-0.03 part of an antifoaming agent, 0.3-0.5 part of a high molecular adhesive and 17-19 parts of water, wherein the total parts are 100 parts. The initial setting time of the material provided by the invention is 15-35 minutes, and the time requirements of different repair construction working conditions can be met; the early strength is high, the 3h flexural strength can reach more than 6.0MPa, the strength requirement of quick traffic can be met, and the later strength is continuously increased; the material has obviously improved toughness and compactness, obviously enhanced crack resistance and reduced later maintenance cost. The invention solves the problems of the prior art that the repairing material is too fast to be solidified and hardened, low in strength and easy to crack, and is suitable for emergency repair of road engineering.
Description
Technical Field
The invention relates to the field of building materials, in particular to a quick-setting, quick-hardening, super-early-strength and high-crack-resistance pavement repairing material for quickly repairing a cement concrete pavement and a preparation method thereof.
Background
The cement concrete has the advantages of high rigidity, strong bearing capacity, convenient construction, low cost and the like, and is widely applied to the field of traffic. However, in the using process, due to the erosion of the external environment and the continuous action of an external load, particularly in the bridge expansion joints and the high-speed toll island area, the cement concrete material is usually damaged soon after being used, and the driving safety is seriously influenced. In order to ensure the driving safety and the use quality of the pavement, the damaged cement concrete pavement needs to be repaired, so that the structural performance and the use performance of the pavement are restored.
As urban roads are increasingly busy, the damaged road surface needs to be repaired quickly so as to reduce the influence of the repairing process on the urban traffic, and the repaired road surface has higher early strength and stronger durability.
At present, the patching materials are divided into organic patching materials and inorganic patching materials, the organic patching materials limit the application of the organic patching materials in engineering due to high price, and the inorganic patching materials are widely applied. The inorganic repairing materials are mainly aluminate cement system, phosphate system and sulphoaluminate cement system. The aluminate cement has the problems of strength inversion at the later stage of crystal form transformation and high price; the phosphate system has the problems of water intolerance and obvious color difference with the existing cement concrete; the sulphoaluminate cement system has the problems of unstable quality and large drying shrinkage.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention relates to a rapid-setting rapid-hardening super-early-strength high-crack-resistance pavement patching material, which can quickly generate a hardened slurry structure mainly containing ettringite after being hydrated and has excellent rapid-setting rapid-hardening, early-strength and crack-resistance properties. The material of the invention is mainly prepared from the following raw materials: sulphoaluminate cement, portland cement, anhydrite powder, fly ash, silica fume, sand, a composite retarder, an early strength agent, a water reducing agent, a defoaming agent, a high-molecular adhesive and water.
Further, the weight parts of the components are as follows: 16-20 parts of sulphoaluminate cement, 13-17 parts of Portland cement, 3-4 parts of anhydrite powder, 1-2 parts of fly ash, 1-2 parts of silica fume, 37-42 parts of sand, 3.1-4.5 parts of composite retarder, 0.01-0.02 part of early strength admixture, 0.2-0.3 part of water reducing agent, 0.02-0.03 part of defoaming agent, 0.3-0.5 part of high molecular binder and 17-19 parts of water, wherein the total parts are 100 parts.
Further, the sulphoaluminate cement of the invention has the mark number of 52.5, 72.5 or 92.5; the portland cement is marked with 52.5 or 52.5R; the anhydrite powder is 200-400 meshes of anhydrite powder; the fly ash is first-grade undisturbed fly ash; the sand is selected from river sand with fineness modulus of 2.6-3.2; the early strength agent is one or more of lithium carbonate powder, lithium chloride powder or lithium sulfate powder; the water reducing agent is one or more of a polycarboxylic acid water reducing agent, a naphthalene water reducing agent, a melamine water reducing agent and an aminosulfonate water reducing agent; the defoaming agent is one or more of polyether defoaming agent, organic silicon defoaming agent or mineral oil defoaming agent; the high molecular adhesive is one or more of ethylene-vinyl acetate copolymer, ethylene-chloroethylene-vinyl laurate terpolymer or vinyl acetate-ethylene-higher fatty acid vinyl ester terpolymer.
Further, the composite retarder comprises 3-4 parts by weight of an inorganic retarding component A and 0.1-0.5 part by weight of an organic retarding component B. The component A is one or more of 200-400 meshes of alpha semi-hydrated gypsum powder and 200-400 meshes of beta semi-hydrated gypsum powder; the component B is one or more of citric acid, tartaric acid, borax, boric acid and sodium gluconate.
Compared with the conventional organic retarder, the invention provides the composite retarder which is suitable for the system and consists of the inorganic retarding component A and the organic retarding component B. Compared with the conventional method of singly doping the organic retarding component, the doping of the inorganic retarding component A greatly prolongs the setting time of the patching material, mainly because the hemihydrate gypsum in the inorganic retarding component A has high dissolution rate and can quickly participate in the reaction,more SO is supplied more quickly in the early stage of hydration4 2-With higher activity of C3A and C4A3 
The reaction generates ettringite, as shown in formulas (1) and (2), and the generated ettringite is coated on the C3A and C4A3 
The surface reduces the activity of the water-soluble polymer, thereby delaying the hydration and playing a role of retarding coagulation.
Meanwhile, the material of the invention has excellent crack resistance, which is derived from two aspects: on one hand, the polymer adhesive forms a mutually-adhered film-shaped structure in the hydrated matrix, so that the density and toughness of the structure are increased, the stress distribution in the matrix is improved, and the crack resistance of the material is greatly improved; on the other hand, because of C in the portland cement2S and C3Hydration of S to form C-S-H gel and Ca (OH)2In the system Ca (OH)2The content is increased, under the condition that the CH amount is sufficient, the generated aluminum paste further generates ettringite, as shown in a formula (3), at the moment, the generated ettringite has expansibility, the shrinkage is compensated, a hydration system is more compact, and the crack resistance of the material is enhanced.
The invention also relates to a preparation method of the rapid-setting rapid-hardening super-early-strength high-crack-resistance repairing material, which comprises the following steps:
s1: respectively weighing the raw materials mentioned in the rapid-setting rapid-hardening super-early-strength high-crack-resistance pavement patching material;
s2: putting the weighed sulphoaluminate cement, portland cement, anhydrite powder, fly ash, silica fume and sand into a stirrer to stir for 2min at a low speed to obtain uniform powder;
s3: adding the weighed retarder, the early strength agent, the water reducing agent, the defoaming agent and the polymer adhesive into the uniform powder prepared in the step S2, and slowly stirring in a stirrer for 1min to obtain uniform powder;
s4: and (4) adding the weighed water into the uniform powder prepared in the step S3, stirring at a low speed for 1min, and then stirring at a high speed for 2min to obtain the rapid-setting rapid-hardening ultra-early-strength high-crack-resistance pavement patching material.
The invention solves the problems of the prior art that the repairing material is too fast to be solidified and hardened, low in strength and easy to crack, and is suitable for emergency repair of road engineering. The rapid-setting rapid-hardening super-early-strength high-crack-resistance pavement patching material and the preparation method thereof provided by the invention have the following advantages:
(1) the initial setting time is 15-35 minutes, and the requirements of construction time under different repairing working conditions can be met;
(2) the prepared material has high early strength, the breaking strength can reach more than 6.0MPa at most after 3 hours, and the later strength is continuously increased;
(3) the material has excellent anti-cracking performance mainly because the shrinkage of the material is compensated by the ettringite with expansion performance generated in the hydration process of the repairing material, and the polymer adhesive forms a compact polymer film structure in the substrate, so that the stress distribution in the substrate is improved, the toughness and the compactness of the material are obviously improved, and the later maintenance cost is reduced.
(4) The preparation method provided by the invention is simple to operate, has low technical requirements on operators, reduces the production cost, and is easy to implement, popularize and apply.
Detailed Description
The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is in no way intended to limit the invention.
Example 1: the quick-setting, quick-hardening, super-early-strength and high-crack-resistance pavement patching material comprises the following components in parts by weight:
72.5 parts of sulphoaluminate cement, 18 parts of 52.5 parts of Portland cement, 3 parts of 200-mesh anhydrite powder, 1.5 parts of first-grade undisturbed fly ash, 1.5 parts of silica fume, 39 parts of sand, 3 parts of inorganic retarding A component (200-mesh beta semi-hydrated gypsum), 0.36 part of organic retarding B component (wherein 0.1 part of tartaric acid, 0.06 part of boric acid, 0.1 part of citric acid and 0.1 part of sodium gluconate), 0.02 part of lithium carbonate powder, 0.2 part of naphthalene water reducer, 0.02 part of polyether defoamer, 0.4 part of ethylene-vinyl acetate polymer and 18 parts of water;
the repairing material is prepared by the following method:
s1: weighing the components in parts by mass respectively;
s2: respectively putting the weighed sulphoaluminate cement, portland cement, anhydrite powder, fly ash, silica fume and sand into a stirrer to stir at a low speed for 2min to obtain uniform powder;
s3: adding the weighed composite retarder, lithium carbonate powder, naphthalene water reducer, polyether defoamer and ethylene-vinyl acetate copolymer into the uniform powder prepared in the step S2), and slowly stirring in a stirrer for 1min to obtain uniform powder;
s4: and (4) adding the weighed water into the uniform powder prepared in the step S3), slowly stirring for 1min, and then quickly stirring for 2min to obtain the rapid-setting rapid-hardening ultra-early-strength high-crack-resistance pavement patching material.
Example 2:
the quick-setting, quick-hardening, super-early-strength and high-crack-resistance pavement patching material comprises the following components in parts by weight:
72.5 parts of sulphoaluminate cement 18 parts, 52.5 parts of Portland cement, 4 parts of 200-mesh anhydrite powder, 1.5 parts of first-grade original-state fly ash, 1.5 parts of silica fume, 38.2 parts of sand, 3 parts of inorganic retarding A component (200-mesh beta semi-hydrated gypsum), 0.16 part of organic retarding B component (wherein 0.1 part of tartaric acid and 0.06 part of boric acid), 0.02 part of lithium carbonate powder, 0.2 part of naphthalene water reducing agent, 0.02 part of polyether defoamer, 0.4 part of ethylene-vinyl acetate polymer and 18 parts of water.
The preparation method is the same as that described in example 1.
Example 3:
the quick-setting, quick-hardening, super-early-strength and high-crack-resistance pavement patching material comprises the following components in parts by weight:
72.5 parts of sulphoaluminate cement, 18 parts of 52.5 parts of Portland cement, 3 parts of 200-mesh anhydrite powder, 1.5 parts of first-grade original-state fly ash, 1.5 parts of silica fume, 37.86 parts of sand, 4 parts of inorganic retarding A component (200-mesh beta semi-hydrated gypsum), 0.5 part of organic retarding B component (wherein 0.15 part of tartaric acid, 0.08 part of boric acid, 0.15 part of citric acid and 0.12 part of sodium gluconate), 0.02 part of lithium carbonate powder, 0.2 part of naphthalene water reducer, 0.02 part of polyether defoamer, 0.4 part of ethylene-vinyl acetate polymer and 18 parts of water.
The preparation method is the same as that described in example 1.
Example 4: the quick-setting, quick-hardening, super-early-strength and high-crack-resistance pavement patching material comprises the following components in parts by weight:
72.5 parts of sulphoaluminate cement, 18 parts of 52.5 parts of Portland cement, 3 parts of 200-mesh anhydrite powder, 1.5 parts of first-grade original fly ash, 1.5 parts of silica fume, 39 parts of sand, 3 parts of inorganic retarding component A (200-mesh beta semi-hydrated gypsum), 0.36 part of organic retarding component B (0.36 part of sodium gluconate), 0.02 part of lithium carbonate powder, 0.2 part of naphthalene water reducing agent, 0.02 part of polyether defoamer, 0.4 part of ethylene-vinyl acetate polymer and 18 parts of water;
the preparation method is the same as that described in example 1.
Example 5:
the quick-setting, quick-hardening, super-early-strength and high-crack-resistance pavement patching material comprises the following components in parts by weight:
72.5 parts of sulphoaluminate cement, 18 parts of 52.5 parts of Portland cement, 3 parts of 200-mesh anhydrite powder, 1.5 parts of first-grade undisturbed fly ash, 1.5 parts of silica fume, 39 parts of sand, 3 parts of inorganic retarding A component (200-mesh beta semi-hydrated gypsum), 0.36 part of organic retarding B component (wherein 0.1 part of tartaric acid, 0.06 part of boric acid, 0.1 part of citric acid and 0.1 part of sodium gluconate), 0.02 part of lithium chloride powder, 0.2 part of naphthalene water reducer, 0.02 part of polyether defoamer, 0.4 part of ethylene-vinyl acetate polymer and 18 parts of water;
the preparation method is the same as that described in example 1.
Comparative example 1:
the inorganic retarding component A in the composite retarder, namely one or more of alpha semi-hydrated gypsum and beta semi-hydrated gypsum, plays an important role in the setting time and the strength of a system, and the inorganic retarding component A is not added in the comparative example 1 and comprises the following components in parts by weight:
72.5 parts of sulphoaluminate cement 18 parts, 52.5 parts of Portland cement, 3 parts of 200-mesh anhydrite powder, 1.5 parts of first-grade original-state fly ash, 1.5 parts of silica fume, 42 parts of sand, 0.36 part of organic retarding component B (wherein 0.1 part of tartaric acid, 0.06 part of boric acid, 0.1 part of citric acid and 0.1 part of sodium gluconate), 0.02 part of lithium carbonate powder, 0.2 part of naphthalene water reducer, 0.02 part of polyether defoamer, 0.4 part of ethylene-vinyl acetate polymer and 18 parts of water;
the preparation method is the same as that described in example 1.
Comparative example 2:
the organic retarding component B in the composite retarder, namely one or more of citric acid, tartaric acid, borax, boric acid and sodium gluconate, plays an important role in the setting time of a system, and the comparative example 2 does not add the organic retarding component B and comprises the following components in parts by weight:
72.5 parts of sulphoaluminate cement 18 parts, 52.5 parts of Portland cement 15 parts, 3 parts of 200-mesh anhydrite powder, 1.5 parts of first-grade undisturbed fly ash, 1.5 parts of silica fume, 39.36 parts of sand, 3 parts of inorganic retarding component A (200-mesh beta semi-hydrated gypsum), 0.02 part of lithium carbonate powder, 0.2 part of naphthalene water reducing agent, 0.02 part of polyether defoamer, 0.4 part of ethylene-vinyl acetate polymer and 18 parts of water;
the preparation method is the same as that described in example 1.
Comparative example 3:
a certain brand of RGM high-strength shrinkage-free early-rescue material commonly used in the market is taken as a comparative example 3, and the material is widely applied to municipal engineering road surfaces, bridge temporary open circuit rush-repair construction engineering, underground engineering and tunnel engineering anchor-jet support engineering.
And (3) performance detection:
the initial setting time, the flexural strength at different ages and the crack resistance at 3h of the above examples 1 to 6 and comparative examples were tested, and the test results are shown in Table I.
Table one test results
(1) Coagulation time
The system in comparative examples 1-3 has a short setting time and cannot meet the requirements of large-area and large-volume repair construction. The embodiments 1, 3, 4 and 5 have long setting time, and can meet the operation requirements of large-area and large-volume repair construction operation.
Comparative examples 1 and 2 reflect the influence of the composite retarder on the setting time of the system, and the single mixing of the A, B component of the composite retarder does not have good retarding effect; only when the A, B component is mixed, the retardation is reflected, the system setting time can be greatly prolonged, and the requirement of construction operation time is met.
(2) Strength of the system
The rupture strength of the embodiments 1 to 5 is higher than that of common materials in the market, especially the rupture strength of 3h in the early period can meet the requirement of the strength of 3h traffic, and the strength of the later period is continuously increased. This is because the system quickly forms a hardened slurry structure mainly containing ettringite after hydration, and has excellent early strength properties.
(3) Resistance to cracking
The comparative examples 1 to 3 all produced a certain degree of cracking, and the examples 1 to 5 did not produce cracking, and the above results show that the present invention has excellent crack resistance. The invention is characterized in that the aluminum components (sulphoaluminate cement and silicate cement) and the sulfur components (natural anhydrite and semi-hydrated gypsum) generate ettringite with expansion performance under the condition of high CH content, thereby increasing the compactness of the system; meanwhile, the polymer adhesive forms a mutually-adhered film-shaped structure in the hydrated matrix, so that the density and toughness of the structure are increased, the stress distribution in the matrix is improved, and the crack resistance of the material is greatly improved.
(4) Influence of the composition of the organic retarding component B on the Properties of the repair Material
The organic retarding component B of the composite retarder in the embodiment 4 is single sodium gluconate, and compared with the organic retarding component B of the embodiment 1, the organic retarding component B of the composite retarder has multiple components, and the embodiment 4 has shorter setting time and lower strength. Preferably, the organic retarding component B is a multicomponent one.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A rapid-setting rapid-hardening super-early-strength high-crack-resistance pavement patching material is characterized by mainly being prepared from the following raw materials: sulphoaluminate cement, portland cement, anhydrite powder, fly ash, silica fume, sand, a composite retarder, an early strength agent, a water reducing agent, a defoaming agent, a high-molecular adhesive and water.
2. The rapid-setting rapid-hardening, ultra-early-strength and high-crack-resistance pavement patching material as claimed in claim 1, which is mainly prepared from the following raw materials in parts by weight: 16-20 parts of sulphoaluminate cement, 13-17 parts of Portland cement, 3-4 parts of anhydrite powder, 1-2 parts of fly ash, 1-2 parts of silica fume, 37-42 parts of sand, 3.1-4.5 parts of composite retarder, 0.01-0.02 part of early strength admixture, 0.2-0.3 part of water reducing agent, 0.02-0.03 part of defoaming agent, 0.3-0.5 part of high molecular binder and 17-19 parts of water, wherein the total parts are 100 parts.
3. The rapid-setting rapid-hardening early-strength high-crack-resistance pavement patching material as claimed in claim 1 or 2, wherein the sulphoaluminate cement is 52.5, 72.5 or 92.5 in mark; the portland cement is marked with 52.5 and 52.5R.
4. The rapid-setting rapid-hardening early-strength high-crack-resistance pavement patching material as claimed in claim 1 or 2, wherein the anhydrite powder is 200-400 meshes of anhydrite powder.
5. The rapid-setting rapid-hardening early-strength high crack-resistance pavement patching material as claimed in claim 1 or 2, wherein the fly ash is selected from first-grade raw fly ash.
6. The rapid-setting rapid-hardening early-strength high crack-resistant pavement patching material as claimed in claim 1 or 2, wherein the sand is selected from river sand with fineness modulus of 2.6-3.2.
7. The rapid-setting rapid-hardening super-early-strength high-crack-resistance pavement patching material as claimed in claim 1 or 2, wherein the composite retarder consists of 3-4 parts by weight of an inorganic retarding component A and 0.1-0.5 part by weight of an organic retarding component B;
the inorganic retarding component A is one or more of 200-400 meshes of alpha semi-hydrated gypsum powder or 200-400 meshes of beta semi-hydrated gypsum powder;
the organic retarding component B is one or a mixture of more of citric acid, tartaric acid, borax, boric acid and sodium gluconate.
8. The rapid-setting rapid-hardening super-early-strength high-crack-resistance pavement patching material as claimed in claim 1 or 2, wherein the early strength agent is selected from one or more of lithium carbonate powder, lithium chloride powder or lithium sulfate powder; the water reducing agent is selected from one or more of a polycarboxylic acid water reducing agent, a naphthalene water reducing agent, a melamine water reducing agent and an aminosulfonate water reducing agent; the defoaming agent is selected from one or more of polyether defoaming agent, organic silicon defoaming agent or mineral oil defoaming agent; the high molecular adhesive is selected from one or more of ethylene-vinyl acetate copolymer, ethylene-vinyl chloride-vinyl laurate terpolymer or vinyl acetate-ethylene-higher fatty acid vinyl ester terpolymer.
9. The preparation method of the rapid-setting rapid-hardening super-early-strength high-crack-resistance pavement patching material is characterized by comprising the following operation steps of:
s1: respectively weighing the raw materials mentioned in the rapid-setting rapid-hardening ultra-early-strength high-crack-resistance pavement patching material as defined in any one of claims 1 to 8;
s2: respectively putting the weighed sulphoaluminate cement, portland cement, anhydrite powder, fly ash, silica fume and sand into a stirrer to stir at a low speed for 2min to obtain uniform powder;
s3: adding the weighed composite retarder, the early strength agent, the water reducing agent, the defoaming agent and the polymer adhesive into the uniform powder prepared in the step S2, and slowly stirring in a stirrer for 1min to obtain uniform powder;
s4: and (4) adding the weighed water into the uniform powder prepared in the step S3, stirring at a low speed for 1min, and then stirring at a high speed for 2min to obtain the rapid-setting rapid-hardening ultra-early-strength high-crack-resistance pavement patching material.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112225518A (en) * | 2020-10-20 | 2021-01-15 | 陕西煤业化工技术研究院有限责任公司 | Mining rapid-setting high-strength reinforcing material, and preparation method and use method thereof |
| CN112374851A (en) * | 2020-11-16 | 2021-02-19 | 上海宝冶工程技术有限公司 | Concrete thin layer rapid repairing material |
| CN112876180A (en) * | 2021-03-09 | 2021-06-01 | 山东晟世达科技有限公司 | Rapid hardening cementing material and preparation method and application thereof |
| CN113185199A (en) * | 2021-05-17 | 2021-07-30 | 四川统揽建设集团有限公司 | Cement stabilizing material and preparation method thereof |
| CN113582652A (en) * | 2021-08-13 | 2021-11-02 | 武汉市市政建设集团有限公司 | Conductive quick-hardening repairing material and preparation method thereof |
| CN113620685A (en) * | 2021-09-10 | 2021-11-09 | 济南大学 | Steam-cured concrete member repairing agent and preparation method and application thereof |
| CN114133192A (en) * | 2021-11-29 | 2022-03-04 | 上海市建筑科学研究院有限公司 | High-strength rapid repairing material special for airport runway |
| CN114292525A (en) * | 2021-12-29 | 2022-04-08 | 中冶南方城市建设工程技术有限公司 | Modified asphalt suitable for hard-soft composite long-life pavement interlayer and preparation method thereof |
| CN114573306A (en) * | 2020-12-02 | 2022-06-03 | 沈阳爱力科建材科技有限公司 | High-strength rapid-setting concrete repairing material and preparation method and application thereof |
| CN115286327A (en) * | 2021-12-08 | 2022-11-04 | 桂林理工大学 | Rapid-hardening micro-expansion high-crack-resistance curing material and preparation method thereof |
| CN115417649A (en) * | 2022-08-22 | 2022-12-02 | 北京安科兴业科技股份有限公司 | High-durability self-repairing inorganic material for reinforcement and repair and use method thereof |
| CN115746598A (en) * | 2022-01-24 | 2023-03-07 | 东胜军 | Technical production process of coating for road marking |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3020057A1 (en) * | 2014-04-18 | 2015-10-23 | Inst Nat Sciences Appliq | COMPOSITE MATERIAL, IN PARTICULAR FOR THE REPAIR OF WATER TANK |
| CN109354471A (en) * | 2018-11-21 | 2019-02-19 | 君旺节能科技股份有限公司 | A kind of lower shrinkage self-compaction super hardening mending mortar and its construction technology |
| CN110357544A (en) * | 2019-07-15 | 2019-10-22 | 天津炬实科技发展股份有限公司 | A kind of upper flow regime cracking resistance early-strength repairing mortar and preparation method thereof |
| CN110510913A (en) * | 2019-08-21 | 2019-11-29 | 安徽省高迪环保股份有限公司 | A kind of preparation method of the undisguised agent of prefabricated components concrete surface |
-
2020
- 2020-05-28 CN CN202010470633.4A patent/CN111574174A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3020057A1 (en) * | 2014-04-18 | 2015-10-23 | Inst Nat Sciences Appliq | COMPOSITE MATERIAL, IN PARTICULAR FOR THE REPAIR OF WATER TANK |
| CN109354471A (en) * | 2018-11-21 | 2019-02-19 | 君旺节能科技股份有限公司 | A kind of lower shrinkage self-compaction super hardening mending mortar and its construction technology |
| CN110357544A (en) * | 2019-07-15 | 2019-10-22 | 天津炬实科技发展股份有限公司 | A kind of upper flow regime cracking resistance early-strength repairing mortar and preparation method thereof |
| CN110510913A (en) * | 2019-08-21 | 2019-11-29 | 安徽省高迪环保股份有限公司 | A kind of preparation method of the undisguised agent of prefabricated components concrete surface |
Non-Patent Citations (1)
| Title |
|---|
| 陈燕等: "《石膏建筑材料》", 31 March 2003, 中国建材工业出版社, pages: 206 - 207 * |
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| CN112225518A (en) * | 2020-10-20 | 2021-01-15 | 陕西煤业化工技术研究院有限责任公司 | Mining rapid-setting high-strength reinforcing material, and preparation method and use method thereof |
| CN112374851A (en) * | 2020-11-16 | 2021-02-19 | 上海宝冶工程技术有限公司 | Concrete thin layer rapid repairing material |
| CN114573306A (en) * | 2020-12-02 | 2022-06-03 | 沈阳爱力科建材科技有限公司 | High-strength rapid-setting concrete repairing material and preparation method and application thereof |
| CN112876180A (en) * | 2021-03-09 | 2021-06-01 | 山东晟世达科技有限公司 | Rapid hardening cementing material and preparation method and application thereof |
| CN113185199A (en) * | 2021-05-17 | 2021-07-30 | 四川统揽建设集团有限公司 | Cement stabilizing material and preparation method thereof |
| CN113582652A (en) * | 2021-08-13 | 2021-11-02 | 武汉市市政建设集团有限公司 | Conductive quick-hardening repairing material and preparation method thereof |
| CN113620685B (en) * | 2021-09-10 | 2022-08-19 | 济南大学 | Steam-cured concrete member repairing agent and preparation method and application thereof |
| CN113620685A (en) * | 2021-09-10 | 2021-11-09 | 济南大学 | Steam-cured concrete member repairing agent and preparation method and application thereof |
| CN114133192A (en) * | 2021-11-29 | 2022-03-04 | 上海市建筑科学研究院有限公司 | High-strength rapid repairing material special for airport runway |
| CN115286327A (en) * | 2021-12-08 | 2022-11-04 | 桂林理工大学 | Rapid-hardening micro-expansion high-crack-resistance curing material and preparation method thereof |
| CN114292525A (en) * | 2021-12-29 | 2022-04-08 | 中冶南方城市建设工程技术有限公司 | Modified asphalt suitable for hard-soft composite long-life pavement interlayer and preparation method thereof |
| CN115746598A (en) * | 2022-01-24 | 2023-03-07 | 东胜军 | Technical production process of coating for road marking |
| CN115417649A (en) * | 2022-08-22 | 2022-12-02 | 北京安科兴业科技股份有限公司 | High-durability self-repairing inorganic material for reinforcement and repair and use method thereof |
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