CN107673698A - High binding prestress hole path pressure grouting material of autotrophic type and preparation method thereof - Google Patents
High binding prestress hole path pressure grouting material of autotrophic type and preparation method thereof Download PDFInfo
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- CN107673698A CN107673698A CN201711036062.8A CN201711036062A CN107673698A CN 107673698 A CN107673698 A CN 107673698A CN 201711036062 A CN201711036062 A CN 201711036062A CN 107673698 A CN107673698 A CN 107673698A
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- China
- Prior art keywords
- grouting material
- path pressure
- hole path
- pressure grouting
- high binding
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- 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
Abstract
The invention provides a kind of high binding prestress hole path pressure grouting material of autotrophic type and preparation method, the high binding prestress hole path pressure grouting material of autotrophic type, by the green mud stone flour with pozzolanic activity, porous volcanic ash, vermiculite power, corrosion resistance and the good MIM powder of stainless steel of durability, thickener, defoamer, water reducer, water, mix together.The prestress hole path pressure grouting material formed with above-mentioned raw materials not only has self care action, and early strength is high, high with reinforcing bar and cell walls cohesive force, and the durability of volume stability, reinforcing bar decay resistance and whole concrete structure is greatly improved.
Description
Technical field
The invention belongs to civil engineering construction field, is related to a kind of hole path pressure grouting material, more particularly to a kind of autotrophic type height glues
Tie prestress hole path pressure grouting material and preparation method thereof.
Background technology
With China's infrastructure industry flourish, post-tensioned prestressing concrete beam be widely used to highway,
Railway construction.One of the critical material of hole path pressure grouting material as prestressed concrete beam, presstressed reinforcing steel can be protected not exposed and
By corrosion；Concrete and reinforcing bar is effectively connected, ensure the transmission of power, alleviate the fatigue damage of presstressed reinforcing steel and anchorage；
The security and durability of concrete structure are extremely important.Therefore, the quality problems of press mortar are to ensure
The key of bridge construction quality, due to its application more and more extensive in engineering, also increasingly obtain various countries experts and scholars'
Concern research.
At present, the preparation method of grouting material mainly has two kinds in China's engineering：One kind be grouting material directly add water stir and
Into.Another kind is mixed by cement, various grouting agents.Grouting material is stable compared with grouting agent, prepare it is simple, but cost compared with
It is high.And it is excessive for the latter's ratio of mud, layering bleeding is serious, and hardening after-contraction is big, and early strength is low, and reinforcing bar and cell walls are glued
It is not high to tie power, easily causes grouting leakiness, the problems such as presstressed reinforcing steel corrosion.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of high binding prestress hole of autotrophic type
Road grouting material and preparation method thereof so that grouting material can carry out self maintenance in engineering structure, meet that gain in strength is fast, with
The features such as cell walls adhesion strength is high, and can be made at the construction field (site), reduce and prepare cost.
In order to meet above performance, the present invention adopts the following technical scheme that：
The high binding prestress hole path pressure grouting material of autotrophic type, by percentage to the quality including following components：Cement 80%, it is porous
Volcanic ash 6%~10%, modified green mud stone flour 4%~8%, vermiculite power 2%~4%, MIM powder of stainless steel 0%~2%, increase
Thick dose 0%~0.015%, swelling agent 1%~1.5%, water reducer 0.25%~0.35%, defoamer 0.05%, surplus is water；
Modified green mud stone flour is 1 by quality by green mud stone flour, methanol, dimethyl sulfoxide (DMSO):1:10 mixing, it is sonicated again
Stirring at low speed obtains sample, and sample passes through filtering, centrifugation, hot ethanol cleaning, finally dries, grinding obtains.
Further, the cement is 42.5 portland cements.
Further, the modified green mud stone flour fineness is 300 mesh.
Further, the porous volcanic ash, vermiculite powder fineness are 200 mesh.
Further, MIM powder of stainless steel is high-purity 316L aerosolizations powder, and nickel content is more than or equal to 12.8%, fineness 500
Mesh.
Further, thickener is polyvinyl alcohol and macropore column layer chromatography silicone rubber, and the ratio of the two is 4:6.
Further, swelling agent is U-shaped swelling agent.
Further, water reducer is esters polycarboxylate water-reducer, and esters polycarboxylate water-reducer is to be obtained with polymerizable acrylic monomer
To polyacrylic acid, polyacrylic acid carries out graft esterification with poly glycol monomethyl ether and reacts to obtain.
Further, defoamer is tributyl phosphate.
A kind of preparation method of the high binding prestress hole path pressure grouting material of autotrophic type, comprises the following steps：
Step 1：It is 1 by the quality of green mud stone flour, methanol, dimethyl sulfoxide (DMSO):1:10 mixing, 65 DEG C stirring 4 hours after 60
DEG C be ultrasonically treated 3 hours, then 80 DEG C of stirring at low speed obtain sample for 3 hours, sample is filtered, centrifugation, hot ethanol cleaning, dry,
Ground 300 eye mesh screen obtains modified green mud stone flour after drying；
Step 2：Above-mentioned raw material are weighed by mass percentage；
Step 3：Weigh a certain amount of water to add in agitator, and add water reducer, be poured slowly into stir it is various
Spike, mix slowly 2 minutes, then quick stirring obtains the high bonding hole path pressure grouting material of autotrophic type for 5 minutes.
The high binding prestress hole path pressure grouting material of autotrophic type of the present invention, by the green mud stone flour with pozzolanic activity, porous
Volcanic ash, vermiculite power, corrosion resistance and the good MIM powder of stainless steel of durability, thickener, defoamer, water reducer, water, are mixed
Stirring is closed to form.The prestress hole path pressure grouting material formed with above-mentioned raw materials not only has self care action, early strength
Height, it is high with reinforcing bar and cell walls cohesive force, and volume stability, reinforcing bar decay resistance and whole concrete structure it is durable
Property is greatly improved.
Compared with the grouting material that present majority uses, beneficial has the technical effect that foregoing invention：
(1) prestress hole path pressure grouting material provided by the present invention includes the green mud stone flour by intercalation modifying, makes its tool
There is pozzolanic activity, promote slurry later strength to improve with the synergy of porous volcanic ash.Porous volcanic ash, green mud stone flour,
Vermiculite power all has loose structure, can store substantial amounts of moisture, and can slowly release moisture after final set plays interior maintenance
Effect, unhydrated particle is set to continue aquation.Therefore, grouting material has the ability of Self-curing, reduces the material resources of nourishment
Financial resources, while reduce the new isolation and bleeding capacity for mixing grouting material.
(2) the MIM powder of stainless steel provided in the present invention, for the ball particle of rule, lubrication can be both played,
Increase the mobility of grouting material, the later stage that can limit grouting material again shrinks, and has good corrosion resistance and durability.
Not only increase and newly mix the mobility of grouting material, the protective capability to steel bar corrosion, and cause the steady of whole concrete structure
Qualitative, durability is guaranteed.
(3) intercalation modifying green mud stone flour of the invention, makes green mud stone flour be uniformly dispersed in dimethyl sulfone, between them
There is fuzzy two-phase interface, serve Anticrack, slow down the effect of stress concentration, so as to improve the mechanics of material
Performance, and chlorite bisque spacing after intercalation is larger, space is more, therefore have good decentralization, hydrophily, water conservation energy
Power improves.
(4) whole preparation process of grouting material of the present invention does not need professional equipment, at the construction field (site) neighbouring can system
It is standby, it is only necessary to which that the narration according to the present invention, which operates, to be carried out, and greatly reduces every cost.
Further, the thickener in prestress hole path pressure grouting material provided by the present invention be polyvinyl alcohol and big hole post layer by layer
Silica gel is analysed, because polyvinyl alcohol has unique strong adherence, flatness, wearability, column layer chromatography silicone rubber has rigid
Skeleton structure, high mechanical strength, excellent adsorption, when the ratio of the two is 4:Viscosity can be greatly improved when 6, increase grouting material is to steel
The cohesive force of muscle and hole wall, improves the efficiency of stress transmission, and the mobility of slurry, and anti-folding, compression strength can all obtain
Improve.
Further, the water reducer in prestress hole path pressure grouting material provided by the present invention is that a kind of new ester polycarboxylic acids subtracts
Aqua, the water reducer are mainly characterized in that：Volume is small, and water-reducing rate is high, adaptability is good, anti-bleeding, isolation performance are good, alkali content
It is low, chloride ion content is low, to reinforcing bar non-corrosiveness, decentralization height etc..
Embodiment
With reference to example, the present invention is described in further detail, herein with the present invention illustrative example and say
It is bright to explain the present invention, but do not limit to and example in detail below.
Embodiment 1
This example gives a kind of prestress hole path pressure grouting material, and by weight, raw material include consisting of：80% it is general
Logical portland cement, 6% porous volcanic ash, 8% modified green mud stone flour, 4% vermiculite power, 0.01% thickener, 1.5% it is U-shaped
Swelling agent, 0.25% new ester polycarboxylate water-reducer, 0.05% tributyl phosphate defoamer, surplus is water.
Embodiment 2
This example gives a kind of prestress hole path pressure grouting material, and by weight, raw material include consisting of：80% it is general
Logical portland cement, 8% porous volcanic ash, 6% modified green mud stone flour, 1% MIM powder of stainless steel, 2% vermiculite power,
0.01% thickener, 1.5% U-shaped swelling agent, 0.3% new ester polycarboxylate water-reducer, 0.05% tributyl phosphate
Defoamer, surplus are water.
Embodiment 3
This example gives a kind of prestress hole path pressure grouting material, and by weight, raw material include consisting of：80% it is general
Logical portland cement, 10% porous volcanic ash, 6% modified green mud stone flour, 1% MIM powder of stainless steel, 2% vermiculite power,
0.015% thickener, 1% U-shaped swelling agent, 0.3% new ester polycarboxylate water-reducer, 0.05% tributyl phosphate disappear
Infusion, surplus are water.
Embodiment 4
This example gives a kind of prestress hole path pressure grouting material, and by weight, raw material include consisting of：80% it is general
Logical portland cement, 10% porous volcanic ash, 4% modified green mud stone flour, 2% MIM powder of stainless steel, 3% vermiculite power,
0.015% thickener, 1.3% U-shaped swelling agent, 0.35% new ester polycarboxylate water-reducer, 0.05% tricresyl phosphate fourth
Ester defoamer, surplus are water.
The preparation method of above-mentioned prestress hole path pressure grouting material comprises the following steps：
Step 1：It is 1 by the quality of green mud stone flour, methanol, dimethyl sulfoxide (DMSO):1:10 mixing, 65 DEG C stirring 4 hours after surpass
Sonication 3 hours (ultrasonic temperature is 60 DEG C), then 80 DEG C of stirring at low speed 3 hours, obtain sample filtering, centrifugation, clear with hot ethanol
Wash three times, 65 DEG C are dried in vacuo 24 hours, and ground 300 eye mesh screen obtains modified green mud stone flour after drying；
Step 2：Above-mentioned raw material are weighed by mass percentage；；
Step 3：Weigh a certain amount of water to add in agitator, and add water reducer, the various spikes to stir are delayed
Slowly pour into bucket, mixed slowly 2 minutes with quick stirring rifle, then quickly stirring 5 minutes, obtain a kind of novel self maintenance height and bond
Hole path pressure grouting material.
Performance test：
Above example result of the test can be seen that the high binding prestress hole path pressure grouting material of the autotrophic type not only can very great Cheng
Intensity, the mobility of the increase slurry of degree, reduce isolation, the bleeding of slurry, reduce the later stage and shrink；Slurry and steel can also be improved
Cohesive force between muscle, cell walls, it is therefore prevented that the corrosion of reinforcing bar.Therefore, the present invention will improve existing inherent stress mud-jacking material
Many deficiencies, and improve the mechanical property and durability of prestressed concrete integrated member.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The embodiment of the present invention is only limitted to this, for general technical staff of the technical field of the invention, is not taking off
On the premise of from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention by institute
The scope of patent protection that claims of submission determine.
Claims (10)
1. the high binding prestress hole path pressure grouting material of autotrophic type, it is characterised in that by percentage to the quality including following components：Cement
80%, porous volcanic ash 6%~10%, modified green mud stone flour 4%~8%, vermiculite power 2%~4%, MIM powder of stainless steel 0%
~2%, thickener 0%~0.015%, swelling agent 1%~1.5%, water reducer 0.25%~0.35%, defoamer 0.05%,
Surplus is water；
Modified green mud stone flour is 1 by quality by green mud stone flour, methanol, dimethyl sulfoxide (DMSO):1:10 mixing, sonicated low speed again
Stirring obtains sample, and sample passes through filtering, centrifugation, hot ethanol cleaning, finally dries, grinding obtains.
2. the high binding prestress hole path pressure grouting material of autotrophic type according to claim 1, it is characterised in that：The cement is
42.5 portland cements.
3. the high binding prestress hole path pressure grouting material of autotrophic type according to claim 1, it is characterised in that：The modified green mud
Stone flour fineness is 300 mesh.
4. the high binding prestress hole path pressure grouting material of autotrophic type according to claim 1, it is characterised in that：The porous volcano
Ash, vermiculite powder fineness are 200 mesh.
5. the high binding prestress hole path pressure grouting material of autotrophic type according to claim 1, it is characterised in that：MIM stainless steel powders
End is high-purity 316L aerosolizations powder, and nickel content is more than or equal to 12.8%, and fineness is 500 mesh.
6. the high binding prestress hole path pressure grouting material of autotrophic type according to claim 1, it is characterised in that：Thickener is poly- second
Enol and macropore column layer chromatography silicone rubber, the ratio of the two are 4:6.
7. the high binding prestress hole path pressure grouting material of autotrophic type according to claim 1, it is characterised in that：Swelling agent is U-shaped
Swelling agent.
8. the high binding prestress hole path pressure grouting material of autotrophic type according to claim 1, it is characterised in that：Water reducer is esters
Polycarboxylate water-reducer, esters polycarboxylate water-reducer are to obtain polyacrylic acid, polyacrylic acid and poly- second two with polymerizable acrylic monomer
Alcohol monomethyl ether carries out graft esterification and reacts to obtain.
9. the high binding prestress hole path pressure grouting material of autotrophic type according to claim 1, it is characterised in that：Defoamer is phosphoric acid
Tributyl.
A kind of 10. preparation method of the high binding prestress hole path pressure grouting material of autotrophic type described in claim 1, it is characterised in that bag
Include following steps：
Step 1：It is 1 by the quality of green mud stone flour, methanol, dimethyl sulfoxide (DMSO):1:10 mixing, after 65 DEG C of stirrings 4 hours 60 DEG C it is super
Sonication 3 hours, then 80 DEG C of stirring at low speed obtain sample for 3 hours, and sample is filtered, centrifuges, hot ethanol cleaning, dries, drying
Ground 300 eye mesh screen obtains modified green mud stone flour afterwards；
Step 2：Above-mentioned raw material are weighed by mass percentage；
Step 3：Weigh a certain amount of water to add in agitator, and add water reducer, be poured slowly into stir various and mix
Material, is mixed slowly 2 minutes, then quick stirring obtains the high bonding hole path pressure grouting material of autotrophic type for 5 minutes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711036062.8A CN107673698B (en) | 2017-10-30 | 2017-10-30 | Autotrophic high-bonding prestressed duct grouting material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711036062.8A CN107673698B (en) | 2017-10-30 | 2017-10-30 | Autotrophic high-bonding prestressed duct grouting material and preparation method thereof |
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| Publication Number | Publication Date |
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| CN107673698A true CN107673698A (en) | 2018-02-09 |
| CN107673698B CN107673698B (en) | 2020-05-29 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120174829A1 (en) * | 2010-06-12 | 2012-07-12 | Shenzhen Grandland Decoration Group Co., Ltd. | Light Mortar Materials and Method of Use |
| CN104402366A (en) * | 2014-11-03 | 2015-03-11 | 甘肃畅陇公路养护技术研究院有限公司 | Post-tensioned pre-stressing pipeline grouting agent |
| CN106747128A (en) * | 2017-03-10 | 2017-05-31 | 中建商品混凝土有限公司 | A kind of big fluidised form High Strength Non-shrinking Filling Material and preparation method thereof |
| CN107021701A (en) * | 2017-04-28 | 2017-08-08 | 长安大学 | Early strong lower shrinkage prestress hole path pressure grouting material and preparation method thereof |
-
2017
- 2017-10-30 CN CN201711036062.8A patent/CN107673698B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120174829A1 (en) * | 2010-06-12 | 2012-07-12 | Shenzhen Grandland Decoration Group Co., Ltd. | Light Mortar Materials and Method of Use |
| CN104402366A (en) * | 2014-11-03 | 2015-03-11 | 甘肃畅陇公路养护技术研究院有限公司 | Post-tensioned pre-stressing pipeline grouting agent |
| CN106747128A (en) * | 2017-03-10 | 2017-05-31 | 中建商品混凝土有限公司 | A kind of big fluidised form High Strength Non-shrinking Filling Material and preparation method thereof |
| CN107021701A (en) * | 2017-04-28 | 2017-08-08 | 长安大学 | Early strong lower shrinkage prestress hole path pressure grouting material and preparation method thereof |
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| CN107673698B (en) | 2020-05-29 |
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