CN106892595A - The preparation method of early strength prestressed hole path pressure grouting material - Google Patents
The preparation method of early strength prestressed hole path pressure grouting material Download PDFInfo
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- CN106892595A CN106892595A CN201710092067.6A CN201710092067A CN106892595A CN 106892595 A CN106892595 A CN 106892595A CN 201710092067 A CN201710092067 A CN 201710092067A CN 106892595 A CN106892595 A CN 106892595A
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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
-
- 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
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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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/26—Corrosion of reinforcement resistance
-
- 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
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
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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)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of preparation method of early strength prestressed hole path pressure grouting material, the problems such as solve the poor mobility that existing slurry is present, layering, crack, technical scheme includes following component：Water reducer 0.15% 0.25%；Cullet 20% 30%；Volcanic ash 5% 10%；Welan gum 0.3% 0.4%；Micro-expanding agent 2% 6%；Defoamer 0.02% 0.1%；Cement 53.25% 72.53%；Water-cement ratio is 0.28；Its preparation method is：By in above-mentioned cullet and volcanic ash input wet milk, water material weight ratio is 1：2, median particle diameter is milled to less than 1 micron, then successively to cement and remaining water is put into wet milk, add architectural grade welan gum, micro-expanding agent, defoamer, water reducer after wet-milling stirring and stir evenly and obtain final product.The inventive method is simple, low production cost, the slurry of preparation have ultrafast mobility and prevents layering, and ungauged regions, microdilatancy and early epistasis energy.
Description
Technical field
The present invention relates to a kind of preparation method of concrete slurry, specifically a kind of early strength prestressed hole path pressure grouting material
Preparation method.
Background technology
Used as renewable and recycling resource, being added in the batch of same glass can play fluxing work to cullet
With, shorten the thawing time of glass, production cost is reduced, increase economic efficiency.Additionally, cullet can also be when clay brick be produced
Instead of flux and partial clay mineral composition, the filler as asphalt roads road surface, the admixture of concrete and aggregate and
As the raw materials for production of glass Mosaic, microcrystal glass plate, structural clay facing tile, foam glass, mineral wool, glass microballoon etc...
Prestressed concrete extensive use in bridge structure because of its unique economic technique superiority, hole path pressure grouting is pre-
The critical process of prestressed concrete construction, its Main Function:One is to protect prestress wire not expose to make it exempt from corrosion；Two
It is to make prestress wire and concrete good combination, it is ensured that prestressed effective transmission, makes prestress wire and concrete
It is common to carry；Three be eliminate prestressed reinforced concrete construction under course under cyclic loading, due to STRESS VARIATION anchorage is caused it is tired
Labor is destroyed, and improves the reliability and durability of component.
CN104529337A discloses a kind of preparation method of highway bridge and culvert post-tensioned prestressing concrete beam hole path pressure grouting material, former
Material includes Binder Materials, mineral and active admixture, hyper dispersant, composite expanding agent, water-loss reducer, stabilizer, lubricant, increasing
Tough dose, adjustable solidification agent and reinforcing steel bar corrosion inhibitor, carry out machine mixing, first by ore deposit using the agravic efficient mortar mixer of double-shaft paddle formula
Thing, active admixture and 1/2nd Binder Materials are added in mixing machine and are pre-mixed 1~2 minute, then by hyper dispersant,
(aqua product can be lazy with part in advance in this way for composite expanding agent, defoamer, stabilizer, toughener, adjustable solidification agent and reinforcing steel bar corrosion inhibitor
Property mineral admixture dilution mixing) add mixing 1~2 minute, finally by remaining Binder Materials add be stirred for 5~8 minutes i.e.
Can discharging packaging.
CN103396057A discloses a kind of prestress hole path pressure grouting material and its mud jacking method, the hole path pressure grouting material be by
Cement, water reducer, retarder, coagulant, antifreezing agent, swelling agent, active mineral powder and mineral filler powder are mixed；The hole
Road mud jacking method is to carry out being mixed to prepare grouting material by the composition and its content of raw material, after in mixer press certain water and mud jacking
Material pressurizes slurry after being added water than first, and controls rotating speed, time, the water temperature to carry out slurrying, after carry out mud jacking immediately.
CN104876496A discloses a kind of novel bridge back-tension prestressed channel mudjacking material, it is characterised in that the grouting material
It is made up of Portland clinker, miberal powder, grouting agent, described Portland clinker, miberal powder, the proportioning of grouting agent are：
Portland clinker 55%~85%, miberal powder 5%~25%, grouting agent 5%~25%.
Above-mentioned prestress hole path pressure grouting material or to there is its mobility poor, causes it to there is lamination, or exist due to
There is situation about shrinking, so as to cause concrete after solidification, structural strength after causing its construction solidification in the blending problem of material
It is not high enough, after a period of time, the situation in crack can be produced, cause potential safety hazard, so dispensing has improved space.
The content of the invention
In order to solve the above-mentioned technical problem mesh of the invention is, there is provided a kind of method is simple, low production cost, the slurry of production
Material has ultrafast mobility and prevents layering, and ungauged regions, microdilatancy and early strong early strength prestressed hole path pressure grouting material system
Preparation Method.
Technical scheme includes following component：Including following component：Water reducer 0.15%-0.25%；Cullet 20%-
30%；Volcanic ash 5%-10%；Architectural grade welan gum 0.3%-0.4%；Micro-expanding agent 2%-6%；Defoamer 0.02%-
0.1%；Cement 53.25%-72.53%, adds up to 100% percetage by weight；Water-cement ratio is 0.28 (the i.e. quality of water and dry mash
Than), the cement is low alkali cement；
Its preparation method is：By in above-mentioned cullet material and volcanic ash input wet milk, water material weight ratio is 1：2, ball milling
1 micron is less than to median particle diameter, then architectural grade is added after wet-milling stirring to cement and remaining water is put into wet milk successively
Welan gum, micro-expanding agent, defoamer, water reducer are stirred evenly and obtained final product.
The cement is no more than 90s from discharging is added to.
The water reducer is lignin sulfonic acid sodium salt water reducer, naphthalene series high-efficiency water-reducing agent, aliphatic high-efficiency water reducing agent and gathers
At least one in carboxylic acid high efficiency water reducing agent.
The defoamer is aluminum stearate, defoamer octanoic acid -2, in defoamer octanoic acid XH-1 and organic silicon defoamer pulvis
At least one therein.
The micro-expanding agent is bulking agent of calcium aluminate and/or UEA swelling agents.
For problem present in background technology, inventor makes following improvement：
1) cullet and volcanic ash are added in raw material, with the volume of replacing partial cement, the ball effect of glass dust increases
The mobile performance of slurry is added, increased the consistency of petrifying water mudstone, significantly improved the intensity of material, volcanic ash is in system
Substantial amounts of active silica is provided and participates in secondary reaction of hydration, both are strong with the use of not only improving service behaviour but also improve
In the degree present invention, the preferred 20%-30% of volume of the cullet can excessively reduce the intensity of material, and I haven't seen you for ages excessively causes material
Service behaviour improves unobvious；The preferred 5%-10% of volume of the volcanic ash, can excessively cause material system water requirement excessive
Service behaviour is reduced, I haven't seen you for ages excessively makes material system intensity relatively low
2) cullet and volcanic ash are first milled to less than 1 micron by median particle diameter using wet-grinding technology and relative device, on the one hand using wet
Mill avoids the energy resource consumption of the stoving process and drying course of wet stock and reduces the dust pollution that dry grinding is produced, the opposing party
Face, wet-milling makes material internal silica polymeric form be changed to oligomeric state from poly- state high, and the activity for dramatically increasing glass dust makes grouting material
Intensity increases, and research shows, when glass dust median particle diameter is less than 1 micron, can significantly reduce glass dust and is gelled as auxiliary
Alkali- silica reaction (ASR) risk may be brought during material so that structural strength of the present invention after solidification of constructing significantly is carried
Rise.
3) glass dust after wet-milling can not only improve the mobile performance of press mortar, and because wet-milling causes material
Specific surface area is bigger than cement, additionally it is possible to reduce the bleeding rate and settlement action of slurry, the particles filled cement granules of waste glass powder
The later strength and anti-chemistry that space can improve press mortar are invaded candle ability and making and press-fit material and keep good volume steady
It is qualitative.
The energy consumption reason in grinding process is considered in the present invention, the cement is no more than 90s, the water from discharging is added to
Mud is low alkali cement (i.e. alkalinity is less than 0.6wt%), further to reduce the alkali content in reaction environment, it is to avoid alkali gathers materials instead
Should.
The addition of the welan gum can significantly improve the viscosity of slurry, prevent the hair of slurry laminated segregation excreting water phenomenon
It is raw.Addition is controlled in 0.3%-0.4%, can excessively cause the excessive reduction service behaviour of system viscosity, and I haven't seen you for ages excessively causes material
There is isolation excreting water phenomenon in system.
The cullet can select variety classes, the hybrid glass of different colours, including colourless scrap glass bottle, nothing
The soda-lime glass such as the plate glass of the beer bottle of color, the beer bottle of green and brown clean smash as raw material.
Present invention process is simple, simple to operate, has used the low cost feedstock of the recyclings such as cullet and volcanic ash, adopts
The energy resource consumption of the stoving process and drying course of wet stock is avoided with wet-milling and dust pollution, life that dry grinding is produced is reduced
Producing cost can reduce 40-60%, and the early strength prestressed hole path pressure grouting material of production has ultrafast mobility and prevents the characteristics of being layered, nothing
Contraction, microdilatancy and early strong excellent performance.
Specific embodiment
Embodiment one：725.3 parts of cement of selection, 200 parts of waste glass powder, 50 parts of volcanic ash, 1.5 parts of polycarboxylate water-reducer,
3 parts of welan gum, 20 parts of UEA micro-expanding agents, 0.2 part of organic silicon defoamer, water-cement ratio is 0.28.Waste glass powder raw material and volcano
Ash is positioned in wet milk, is added water 125 parts, and wet-milling is milled to median particle diameter less than 1 micron after 3 hours, successively in wet milk
Being released by after adding cement and the wet-milling of remaining water to add micro-expanding agent, welan gum, water reducer, defoamer to stir evenly after stirring makes
With cement is no more than 90s from discharging is added to.
Embodiment two：532.5 parts of cement of selection, 300 parts of waste glass powder, 100 parts of volcanic ash, 2.5 parts of polycarboxylate water-reducer,
4 parts of welan gum, 60 parts of UEA micro-expanding agents, 1 part of organic silicon defoamer, water-cement ratio is 0.28.Waste glass powder raw material and volcanic ash
It is positioned in wet milk, adds water 200 parts, after wet-milling 3 hours, after adds cement and remaining water wet-milling stirring in wet milk successively
Add micro-expanding agent, architectural grade welan gum, water reducer, defoamer to be released after stirring evenly to use, cement discharges not from being added to
More than 90s.
Embodiment three：Choose 628.9 parts of cement, 250 parts of waste glass powder, 75 parts of volcanic ash, 2 parts of polycarboxylate water-reducer, temperature
3.5 parts of glue of wheel, 40 parts of UEA micro-expanding agents, 0.6 part of organic silicon defoamer, water-cement ratio is 0.28.Waste glass powder raw material and volcano
Ash is positioned in wet milk, is added water 162.5 parts, after wet-milling 3 hours, adds cement and remaining water wet-milling to stir in wet milk successively
Released by after adding micro-expanding agent, architectural grade welan gum, water reducer, defoamer to stir evenly after mixing and used, cement is from being added to out
Material is no more than 90s.
Example IV：Choose 678.9 parts of cement, 200 parts of waste glass powder, 75 parts of volcanic ash, 2 parts of polycarboxylate water-reducer, temperature
3.5 parts of glue of wheel, 40 parts of UEA micro-expanding agents, 0.6 part of organic silicon defoamer, water-cement ratio is 0.28.Waste glass powder raw material and volcano
Ash is positioned in wet milk, is added water 137.5 parts, after wet-milling 3 hours, adds cement and remaining water wet-milling to stir in wet milk successively
Released by after adding micro-expanding agent, architectural grade welan gum, water reducer, defoamer to stir evenly after mixing and used, cement is from being added to out
Material is no more than 90s.
Embodiment five：Choose 578.9 parts of cement, 300 parts of waste glass powder, 75 parts of volcanic ash, 2 parts of polycarboxylate water-reducer, temperature
3.5 parts of glue of wheel, 40 parts of bulking agent of calcium aluminate, 0.6 part of organic silicon defoamer, water-cement ratio is 0.28.Waste glass powder raw material and fire
Mountain ash is positioned in wet milk, is added water 187.5 parts,
After wet-milling 3 hours, micro-expanding agent, building are added after adding cement and remaining water wet-milling stirring in wet milk successively
Level welan gum, water reducer, defoamer can be released after stirring evenly and used, and cement is no more than 90s from being added to discharge.
Embodiment six：Choose 653.9 parts of cement, 250 parts of waste glass powder, 50 parts of volcanic ash, 2 parts of polycarboxylate water-reducer, temperature
3.5 parts of glue of wheel, 40 parts of UEA micro-expanding agents, 0.6 part of organic silicon defoamer, water-cement ratio is 0.28.Waste glass powder raw material and volcano
Ash is positioned in wet milk, is added water 150 parts, after wet-milling 3 hours, adds cement and remaining water wet-milling stirring in wet milk successively
Released by after adding micro-expanding agent, architectural grade welan gum, water reducer, defoamer to stir evenly afterwards and used, cement is from being added to discharging
No more than 90s.
Embodiment seven：Choose 603.9 parts of cement, 250 parts of waste glass powder, 100 parts of volcanic ash, 2 parts of polycarboxylate water-reducer, temperature
3.5 parts of glue of wheel, 40 parts of UEA micro-expanding agents, 0.6 part of organic silicon defoamer, water-cement ratio is 0.28.Waste glass powder raw material and volcano
Ash is positioned in wet milk, is added water 175 parts, after wet-milling 3 hours, adds cement and remaining water wet-milling stirring in wet milk successively
Released by after adding micro-expanding agent, architectural grade welan gum, water reducer, defoamer to stir evenly afterwards and used, cement is from being added to discharging
No more than 90s.
Embodiment eight：629.4 parts of cement of selection, 250 parts of waste glass powder, 75 parts of volcanic ash, 1.5 parts of polycarboxylate water-reducer,
3.5 parts of welan gum, 40 parts of UEA micro-expanding agents, 0.6 part of organic silicon defoamer, water-cement ratio is 0.28.Waste glass powder raw material and fire
Mountain ash is positioned in wet milk, is added water 162.5 parts, after wet-milling 3 hours, adds cement and remaining water wet-milling in wet milk successively
Released by after adding micro-expanding agent, architectural grade welan gum, water reducer, defoamer to stir evenly after stirring and used, cement is from being added to
Discharging is no more than 90s.
Embodiment nine：628.4 parts of cement of selection, 250 parts of waste glass powder, 75 parts of volcanic ash, 2.5 parts of polycarboxylate water-reducer,
3.5 parts of welan gum, 40 parts of UEA micro-expanding agents, 0.6 part of organic silicon defoamer, water-cement ratio is 0.28.Waste glass powder raw material and fire
Mountain ash is positioned in wet milk, is added water 162.5 parts, after wet-milling 3 hours, adds cement and remaining water wet-milling in wet milk successively
Released by after adding micro-expanding agent, architectural grade welan gum, water reducer, defoamer to stir evenly after stirring and used, cement is from being added to
Discharging is no more than 90s.
Embodiment ten：Choose 648.9 parts of cement, 250 parts of waste glass powder, 75 parts of volcanic ash, 2 parts of polycarboxylate water-reducer, temperature
3.5 parts of glue of wheel, 20 parts of UEA micro-expanding agents, 0.6 part of organic silicon defoamer, water-cement ratio is 0.28.Waste glass powder raw material and volcano
Ash is positioned in wet milk, is added water 162.5 parts, after wet-milling 3 hours, adds cement and remaining water wet-milling to stir in wet milk successively
Released by after adding micro-expanding agent, architectural grade welan gum, water reducer, defoamer to stir evenly after mixing and used, cement is from being added to out
Material is no more than 90s.
Embodiment 11：608.9 parts of cement of selection, 250 parts of waste glass powder, 75 parts of volcanic ash, 2 parts of polycarboxylate water-reducer,
3.5 parts of welan gum, 60 parts of UEA micro-expanding agents, 0.6 part of organic silicon defoamer, water-cement ratio is 0.28.Waste glass powder raw material and fire
Mountain ash is positioned in wet milk, is added water 162.5 parts, after wet-milling 3 hours, adds cement and remaining water wet-milling in wet milk successively
Released by after adding micro-expanding agent, architectural grade welan gum, water reducer, defoamer to stir evenly after stirring and used, cement is from being added to
Discharging is no more than 90s.
Embodiment 12：629.3 parts of cement of selection, 250 parts of waste glass powder, 75 parts of volcanic ash, 2 parts of polycarboxylate water-reducer,
3.5 parts of welan gum, 40 parts of UEA micro-expanding agents, 0.2 part of organic silicon defoamer, water-cement ratio is 0.28.Waste glass powder raw material and fire
Mountain ash is positioned in wet milk, is added water 162.5 parts, after wet-milling 3 hours, adds cement and remaining water wet-milling in wet milk successively
Released by after adding micro-expanding agent, architectural grade welan gum, water reducer, defoamer to stir evenly after stirring and used, cement is from being added to
Discharging is no more than 90s.
Embodiment 13：628.5 parts of cement of selection, 250 parts of waste glass powder, 75 parts of volcanic ash, 2 parts of polycarboxylate water-reducer,
3.5 parts of welan gum, 40 parts of UEA micro-expanding agents, 1 part of organic silicon defoamer, water-cement ratio is 0.28.Waste glass powder raw material and volcano
Ash is positioned in wet milk, is added water 162.5 parts, after wet-milling 3 hours, adds cement and remaining water wet-milling to stir in wet milk successively
Released by after adding micro-expanding agent, architectural grade welan gum, water reducer, defoamer to stir evenly after mixing and used, cement is from being added to out
Material is no more than 90s.
Embodiment 14：Choose 679.9 parts of cement, 270 parts of waste glass powder, 2.2 parts of polycarboxylate water-reducer, welan gum 3.9
Part, 43.3 parts of UEA micro-expanding agents, 0.7 part of organic silicon defoamer, water-cement ratio is 0.28.Waste glass powder raw material are positioned over wet-milling
In machine, add water 135 parts, after wet-milling 3 hours, microdilatancy is added after adding cement and remaining water wet-milling stirring in wet milk successively
Agent, architectural grade welan gum, water reducer, defoamer stir evenly after by release and use, cement is from being added to discharging no more than 90s.
Embodiment 15：Choose 931.7 parts of cement, 3 parts of polycarboxylate water-reducer, 5.2 parts of welan gum, UEA micro-expanding agents
59.2 parts, 0.9 part of organic silicon defoamer, water-cement ratio is 0.28.Cement and water wet-milling is added to be added after stirring in wet milk micro-
Swelling agent, architectural grade welan gum, water reducer, defoamer stir evenly after by release and use, cement is no more than from discharging is added to
90s。
Claims (5)
1. a kind of preparation method of early strength prestressed hole path pressure grouting material, it is characterised in that including following component：Water reducer
0.15%-0.25%；Cullet 20%-30%；Volcanic ash 5%-10%；Welan gum 0.3%-0.4%；Micro-expanding agent 2%-
6%；Defoamer 0.02%-0.1%；Cement 53.25%-72.53%, adds up to 100% percetage by weight；Water-cement ratio is 0.28,
The cement is low alkali cement,
Its preparation method is：By in above-mentioned cullet and volcanic ash input wet milk, water material weight ratio is 1：2, it is milled to intermediate value
Particle diameter is less than 1 micron, and architectural grade temperature wheel is then added after wet-milling stirring to cement and remaining water is put into wet milk successively
Glue, micro-expanding agent, defoamer, water reducer are stirred evenly and obtained final product.
2. the preparation method of early strength prestressed hole path pressure grouting material as claimed in claim 1, it is characterised in that the cement from plus
Enter to discharging no more than 90s.
3. the preparation method of early strength prestressed hole path pressure grouting material as claimed in claim 1 or 2, it is characterised in that the diminishing
Agent is in lignin sulfonic acid sodium salt water reducer, naphthalene series high-efficiency water-reducing agent, aliphatic high-efficiency water reducing agent and high-efficiency water-reducing agent of poly-carboxylic acid
At least one.
4. the preparation method of early strength prestressed hole path pressure grouting material as claimed in claim 1 or 2, it is characterised in that the froth breaking
Agent is aluminum stearate, defoamer octanoic acid -2, defoamer octanoic acid XH-1 and at least one therein in organic silicon defoamer pulvis.
5. the preparation method of early strength prestressed hole path pressure grouting material as claimed in claim 1 or 2, it is characterised in that described micro- swollen
Swollen dose is bulking agent of calcium aluminate and/or UEA swelling agents.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108503302A (en) * | 2018-04-08 | 2018-09-07 | 俞小峰 | A kind of preparation method of grouting material |
| CN110304848A (en) * | 2019-04-11 | 2019-10-08 | 武汉理工大学 | A kind of super cementitious material and its preparation method and application based on wet-grinding technology and relative device |
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| CN104529337A (en) * | 2015-01-12 | 2015-04-22 | 杭州绿怡新型建材有限公司 | Post-tensioned prestressed concrete beam duct grouting material of highway bridge and preparation method thereof |
| CN105271890A (en) * | 2015-10-23 | 2016-01-27 | 武汉比邻科技发展有限公司 | Pre-stressed duct grouting agent, and preparation and application methods thereof |
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2017
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| GB1480609A (en) * | 1975-12-17 | 1977-07-20 | Balfour Beatty Ltd | Method of grouting ducts |
| CN104072063A (en) * | 2014-07-01 | 2014-10-01 | 吉林省嘉鹏建设集团有限公司 | Grouting material for high fluidity post-tensioning prestressed pipe and preparation method of grouting material |
| CN104529337A (en) * | 2015-01-12 | 2015-04-22 | 杭州绿怡新型建材有限公司 | Post-tensioned prestressed concrete beam duct grouting material of highway bridge and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108503302A (en) * | 2018-04-08 | 2018-09-07 | 俞小峰 | A kind of preparation method of grouting material |
| CN110304848A (en) * | 2019-04-11 | 2019-10-08 | 武汉理工大学 | A kind of super cementitious material and its preparation method and application based on wet-grinding technology and relative device |
| CN110304848B (en) * | 2019-04-11 | 2021-09-07 | 武汉理工大学 | Wet-milling process-based super-cementing material and preparation method and application thereof |
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