CN105272069B - A kind of ultra-fine portland cement base grouting material and preparation method thereof - Google Patents
A kind of ultra-fine portland cement base grouting material and preparation method thereof Download PDFInfo
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- CN105272069B CN105272069B CN201510812960.2A CN201510812960A CN105272069B CN 105272069 B CN105272069 B CN 105272069B CN 201510812960 A CN201510812960 A CN 201510812960A CN 105272069 B CN105272069 B CN 105272069B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The invention belongs to grouting reinforcement technique field, a kind of ultra-fine portland cement base grouting material and preparation method thereof is disclosed.The parts by weight of the injecting paste material are constituted：55 ~ 80 parts of ultra-fine Portland clinker, 10 ~ 20 parts of superfined flyash, 5 ~ 15 parts of super-fine limestone powder, one 2 ~ 6 parts of compound additive, 2 0.2 ~ 1.5 parts of compound additive, 45 ~ 80 parts of water；Wherein, the parts by weight composition of compound additive one is：25 ~ 75 parts of swelling agent, 10 ~ 30 parts of glauber salt, 2.5 ~ 25 parts of sodium metaaluminate, 1 ~ 10 part of sodium gluconate；The parts by weight of compound additive two are constituted：0.5 ~ 10 part of resin of thickening, 5 ~ 25 parts of modified manometer silicon dioxide, 15 ~ 30 parts of polycarboxylate water-reducer, 50 ~ 80 parts of water.Injecting paste material of the present invention had both had that slurry fluidity is big, viscosity is small, and with preferable water-retaining property；Presetting period is adjustable；Microdilatancy after hardening；28d compression strength is between 20MPa to 60MPa.The present invention has with short production cycle, and the characteristics of low production cost, overall process does not produce the three wastes not only, and can not influence environment using solid waste.
Description
Technical field
The invention belongs to grouting reinforcement technique field, more particularly to a kind of ultra-fine portland cement base grouting material and its system
Preparation Method.
Background technology
As the range of application to construction engineering quality requirement more and more higher, grouting reinforcement technique will be increasingly wider, especially
It is the grouting and reinforcing of deep layer micropore, injecting paste material is one key link, therefore, how to prepare the slip casting material of high-quality
Material, and with relatively low production cost, a key factor of grouting reinforcement technique Rapid Popularization will be turned into.
In grouting and reinforcing, the reinforcing of deep hole micro-crack is a difficult point of grouting and reinforcing, but micro-crack but occupies phase
When big ratio, stability and service life to structure play considerable effect.It is generally believed that only working as crack or hole
When the size of gap is more than most coarse grained more than 3 times, its slip casting could be used, if being less than this boundary, slurries are difficult note and enter,
So as to not reach the purpose of slip casting.At present, the injecting paste material species in engineering is more, and chemical grouting is broadly divided into material type
Material and cement injection material.The characteristics of chemical slip casting material is low viscosity, can inject microscopic checks, setting time from several seconds to
A few houres can adjust, but the price of chemical grouting material is high, and formula is complicated, mostly with certain toxicity, and it is inflammable the shortcomings of,
Therefore chemical slip casting material is also more by being limited in the application.Ordinary cement injecting paste material and modifying common cement base slip casting
Material has the advantages that low cost, source wide, intensity high, good endurance, easy to use, but there is also deficiency simultaneously, such as common
Cement granules particle diameter is larger, and coarse granule is more, and pulp stability difference or viscosity are big, and the property noted is not so good as chemical slip casting material, hardening
When bleeding and hardening after with volume contraction, the shortcomings of the adhesion strength of influence and reinforcing body.
It is poor in order to solve the problems, such as the ordinary cement injecting paste material property noted, have in engineering practice using ultra-fine aluminium sulfate
Cement does dual-liquid slip-casting material, have using Magnesium Acrylate Prepared and superfine cement be combined, etc..Although these injecting paste materials are one
Determine to be improve in degree the performance of cement class injecting paste material, but still without be fully solved superfine cement grouting material both had it is preferable
Water-retaining property, and with the relatively low problem of viscosity.During slip casting, the water-retaining property and viscosity of slurries be two it is important because
Element, one is the poor water retention property if slurries, and under the effect of the pressure, during pressure injection, meeting dehydration is serious, so as to make for slurries
Into slurry viscosity increase, the depth of penetration of slurries is influenceed；Two is if improving slurries water-retaining property by reducing ratio of water to material
Words, often promote the viscosity of slurries to increase, and add the water sorption of crack hole wall, it will aggravate the viscosity of slurries, also can
Influence the depth of penetration of slurries.
The content of the invention
Both had that slurry fluidity is big, viscosity is small it is an object of the invention to provide a kind of, and with preferable water-retaining property
Ultra-fine portland cement base grouting material and preparation method thereof.
To achieve the above object, the present invention uses following technical scheme：
A kind of ultra-fine portland cement base grouting material, the parts by weight of the injecting paste material constitute and are：Ultra-fine silicate cement
It is 55 ~ 80 parts of mud clinker, 10 ~ 20 parts of superfined flyash, 5 ~ 15 parts of super-fine limestone powder, one 2 ~ 6 parts of compound additive, compound additional
2 0.2 ~ 1.5 parts of agent, 45 ~ 80 parts of water；Wherein, the parts by weight composition of compound additive one is：25 ~ 75 parts of swelling agent, unit are bright
10 ~ 30 parts of powder, 2.5 ~ 25 parts of sodium metaaluminate, 1 ~ 10 part of sodium gluconate；The parts by weight of compound additive two are constituted：Thickening
0.5 ~ 10 part of resin, 5 ~ 25 parts of modified manometer silicon dioxide, 15 ~ 30 parts of polycarboxylate water-reducer, 50 ~ 80 parts of water.
The parts by weight composition of the injecting paste material is most preferably：70 parts of ultra-fine Portland clinker, 15 parts of superfined flyash,
15 parts of super-fine limestone powder, one 5 parts of compound additive, 21 parts of compound additive, 55 parts of water；Wherein, the weight of compound additive one
Amount number constitutes and is：55 parts of swelling agent, 20 parts of glauber salt, 20 parts of sodium metaaluminate, 5 parts of sodium gluconate；Compound additive two
Parts by weight are constituted：5 parts of resin of thickening, 15 parts of modified manometer silicon dioxide, 20 parts of polycarboxylate water-reducer, 60 parts of water.
Further, the resin of thickening is powdered acrylic resin, and the modified manometer silicon dioxide is received for water base
The poly- silicon powder of rice.
Preferably, the ultra-fine Portland clinker is GB GB/T 21372-2008《Portland clinker》In
Low alkali cement clinker, its grain diameter be D50No more than 10 μm；The superfined flyash is coal-burning power plant's dry discharge fly ash, its
Grain diameter is D50No more than 10 μm；Calcium carbonate mass fraction in the super-fine limestone powder is not less than 80%, alundum (Al2O3)
Mass fraction is not more than 2.0%, and its grain diameter is D50No more than 10 μm；The swelling agent is sulphoaluminate cement clinker, and is accorded with
Close GB GB 20472-2006《Sulphate aluminium cement》The requirement of middle appendix A, its grain diameter is D50No more than 10 μm；It is described
Glauber salt is anhydrous sodium sulfate, and quality purity is more than 99%；The sodium metaaluminate is commercially available sodium aluminate, and quality purity exists
More than 80%；The quality purity of the sodium gluconate is more than 98%；The water-reducing rate of the polycarboxylate water-reducer is more than 30%.
The preparation method of foregoing ultra-fine portland cement base grouting material, comprises the following steps：
The first step, is constituted by the weight portion of compound additive one, weighs swelling agent, glauber salt, sodium metaaluminate, gluconic acid
Sodium, is well mixed, and obtains compound additive one；
Second step, is constituted by the weight portion of compound additive two, weighs resin of thickening, modified manometer silicon dioxide, poly- carboxylic
Sour water reducer, water, are well mixed, and obtain compound additive two；
3rd step, is constituted by the weight portion of injecting paste material, each raw material is weighed, by ultra-fine Portland clinker, superfine powder
Coal ash, super-fine limestone powder, first add compound additive one to be well mixed, and add compound additive two and water is well mixed,
Obtain final product injecting paste material.
The present invention is combined using resin of thickening and modified manometer silicon dioxide, is on the one hand thickened using resin of thickening, is carried
Its water-retaining property high；On the other hand using the viscosity of modified manometer silicon dioxide reduction slurries, and its hydrophobic performance is improved.Meanwhile,
It is aided with polycarboxylate water-reducer and improves its mobility, swelling agent improves its dilatancy, and sodium metaaluminate, glauber salt and sodium gluconate are adjusted
Its defluidization and firm time are saved, and superfined flyash and super-fine limestone powder coordinate overall performance.
Injecting paste material of the present invention had both had that slurry fluidity is big, viscosity is small, and with preferable water-retaining property；Presetting period can
Adjust, in more than ten minutes to adjustable between a few houres；Microdilatancy after hardening；Compression strength is adjustable, 28d compression strength in 20MPa extremely
Between 60MPa.The present invention has with short production cycle, and the characteristics of low production cost, overall process does not produce the three wastes not only, and can profit
With solid waste, environment is not influenceed.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
In following examples：The resin of thickening is powdered acrylic resin, and the modified manometer silicon dioxide is
Water-base nano polysilicon powder（There is provided by Henan Province's nanoscale materials engineering Technical Research Center）；The ultra-fine Portland clinker
It is GB GB/T 21372-2008《Portland clinker》In low alkali cement clinker, its grain diameter be D50No more than 10 μ
m；The superfined flyash is coal-burning power plant's dry discharge fly ash, and its grain diameter is D50No more than 10 μm；The ultra-fine limestone
Calcium carbonate mass fraction in powder is not less than 80%, and alundum (Al2O3) mass fraction is not more than 2.0%, and its grain diameter is D50Less
In 10 μm；The swelling agent is sulphoaluminate cement clinker, and meets GB GB 20472-2006《Sulphate aluminium cement》In it is attached
The requirement of A is recorded, its grain diameter is D50No more than 10 μm；The glauber salt be anhydrous sodium sulfate, and quality purity 99% with
On；The sodium metaaluminate is commercially available sodium aluminate, and quality purity is more than 80%；The quality purity of the sodium gluconate is 98%
More than；The water-reducing rate of the polycarboxylate water-reducer is more than 30%.
Embodiment 1
A kind of ultra-fine portland cement base grouting material, the formula of the injecting paste material is：Ultra-fine Portland clinker
7000g, superfined flyash 1500g, super-fine limestone powder 1500g, the 500g of compound additive one, the 100g of compound additive two, from
Water 5500g；Wherein, the formula of compound additive one is：Swelling agent 550g, glauber salt 200g, sodium metaaluminate 200g, glucose
Sour sodium 50g；The formula of compound additive two is：Resin of thickening 50g, modified manometer silicon dioxide 150g, polycarboxylate water-reducer
200g, running water 600g.
Preparation method：
The first step, by swelling agent 550g, glauber salt 200g, sodium metaaluminate 200g, sodium gluconate 50g, adds batch mixer
In be well mixed, it is qualified after testing after compound additive one；
Second step, by resin of thickening 50g, modified manometer silicon dioxide 150g, polycarboxylate water-reducer 200g, running water
600g, adds and be well mixed in batch mixer, it is qualified after testing after compound additive two；
3rd step, ultra-fine Portland clinker 7000g, superfined flyash 1500g, super-fine limestone powder 1500g are existed
In mixer, the 500g of compound additive one is first added, be stirred until homogeneous, add the 100g of compound additive two and running water
5500g, is stirred until homogeneous, and obtains final product injecting paste material.After testing, the fluidity of the injecting paste material is 270mm, 200ml Marsh funnels
Delivery time is 32.52s.
The injecting paste material that will be obtained in 3rd step, carries out construction and prepares test block by grouting pump, measures the expansion after hardening
Rate is that the compression strength of 0.13%, 28d is 49.8MPa.
Embodiment 2-- Different Water-Cement Ratios
A kind of ultra-fine portland cement base grouting material, the formula of the injecting paste material is shown in Table 1；Wherein, compound additive one
With the formula of compound additive two with embodiment 1.
Preparation method：Step the difference is that only that each raw material dosage is weighed by table 1 with embodiment 1 with embodiment 1.
The injecting paste material performance that Different Water-Cement Ratio is obtained is shown in Table 1.
The consumption of embodiment 3-- different composites additive one
A kind of ultra-fine portland cement base grouting material, the formula of the injecting paste material is shown in Table 2；Wherein, compound additive one
With the formula of compound additive two with embodiment 2.
Preparation method：Step the difference is that only that each raw material dosage is weighed by table 2 with embodiment 1 with embodiment 1.
The injecting paste material performance that the consumption of different composite additive one is obtained is shown in Table 2.
The consumption of embodiment 4-- different composites additive two
A kind of ultra-fine portland cement base grouting material, the formula of the injecting paste material is shown in Table 3；Wherein, compound additive one
With the formula of compound additive two with embodiment 3.
Preparation method：Step the difference is that only that each raw material dosage is weighed by table 3 with embodiment 1 with embodiment 1.
The injecting paste material performance that the consumption of different composite additive two is obtained is shown in Table 3.
Influence of the compound additive two of table 3 to injecting paste material performance
In embodiment 1-4：1. fluidity is carried out with reference to GB 50119-2003 appendix As；2. the delivery time is using geneva leakage
Bucket test；3. pressured bleeding is carried out with reference to the regulations of GB/T 50080；4. vertical expansion ratio is with reference to GB 50119-2003 appendix Cs
Carry out；5. presetting period GB/T 1346-2011 regulations are carried out；6.28d compression strength is carried out with reference to GB/T17671-1999；7.
Test block specification is：70.7mm×70.7mm×70.7mm.
Be can be seen that from the performance data of embodiment 1-4：Injecting paste material of the present invention had both had that slurry fluidity is big, viscosity
It is small, and with preferable water-retaining property；Presetting period is adjustable, in more than ten minutes to adjustable between a few houres；Microdilatancy after hardening；It is anti-
Compressive Strength is adjustable, and 28d compression strength is between 20MPa to 60MPa.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (5)
1. a kind of ultra-fine portland cement base grouting material, it is characterised in that the parts by weight composition of the injecting paste material is：It is ultra-fine
55 ~ 80 parts of Portland clinker, 10 ~ 20 parts of superfined flyash, 5 ~ 15 parts of super-fine limestone powder, one 2 ~ 6 parts of compound additive,
2 0.2 ~ 1.5 parts of compound additive, 45 ~ 80 parts of water；Wherein, the parts by weight composition of compound additive one is：Swelling agent 25 ~ 75
Part, 10 ~ 30 parts of glauber salt, 2.5 ~ 25 parts of sodium metaaluminate, 1 ~ 10 part of sodium gluconate；The parts by weight composition of compound additive two
For：0.5 ~ 10 part of resin of thickening, 5 ~ 25 parts of modified manometer silicon dioxide, 15 ~ 30 parts of polycarboxylate water-reducer, 50 ~ 80 parts of water；
The grain diameter of the ultra-fine Portland clinker is D50No more than 10 μm；The grain diameter of the superfined flyash is
D50No more than 10 μm；The grain diameter of the super-fine limestone powder is D50No more than 10 μm；
The resin of thickening is powdered acrylic resin.
2. ultra-fine portland cement base grouting material as claimed in claim 1, it is characterised in that the weight portion of the injecting paste material
Array turns into：70 parts of ultra-fine Portland clinker, 15 parts of superfined flyash, 15 parts of super-fine limestone powder, compound additive 1
Part, 21 parts of compound additive, 55 parts of water；Wherein, the parts by weight composition of compound additive one is：55 parts of swelling agent, glauber salt
20 parts, 20 parts of sodium metaaluminate, 5 parts of sodium gluconate；The parts by weight of compound additive two are constituted：It is 5 parts of resin of thickening, modified
15 parts of nano silicon, 20 parts of polycarboxylate water-reducer, 60 parts of water.
3. ultra-fine portland cement base grouting material as claimed in claim 1 or 2, it is characterised in that：The modified Nano two
Silica is water-base nano polysilicon powder.
4. ultra-fine portland cement base grouting material as claimed in claim 1 or 2, it is characterised in that：The ultra-fine silicate
Clinker is GB GB/T 21372-2008《Portland clinker》In low alkali cement clinker；The superfined flyash
It is coal-burning power plant's dry discharge fly ash；Calcium carbonate mass fraction in the super-fine limestone powder is not less than 80%, alundum (Al2O3) matter
Amount fraction is not more than 2.0%；The swelling agent is sulphoaluminate cement clinker, and meets GB GB 20472-2006《Sulphur aluminic acid
Salt cement》The requirement of middle appendix A, its grain diameter is D50No more than 10 μm；The glauber salt is anhydrous sodium sulfate, and quality is pure
Degree is more than 99%；The sodium metaaluminate is commercially available sodium aluminate, and quality purity is more than 80%；The quality of the sodium gluconate
Purity is more than 98%；The water-reducing rate of the polycarboxylate water-reducer is more than 30%.
5. a kind of method for preparing ultra-fine portland cement base grouting material as claimed in claim 1 or 2, it is characterised in that including
Following steps：
The first step, is constituted by the weight portion of compound additive one, weighs swelling agent, glauber salt, sodium metaaluminate, sodium gluconate,
It is well mixed, obtain compound additive one；
Second step, is constituted by the weight portion of compound additive two, is weighed resin of thickening, modified manometer silicon dioxide, polycarboxylic acids and is subtracted
Aqua, water, are well mixed, and obtain compound additive two；
3rd step, is constituted by the weight portion of injecting paste material, weighs each raw material, by ultra-fine Portland clinker, superfined flyash,
Super-fine limestone powder, first adds compound additive one to be well mixed, and adds compound additive two and water is well mixed, obtains final product note
Pulp material.
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| CN106587732A (en) * | 2016-08-19 | 2017-04-26 | 中国水利水电第七工程局有限公司 | Grout injection type waterproof high-viscoelasticity modified asphalt pavement mixture and preparation method thereof |
| CN107235689A (en) * | 2017-06-28 | 2017-10-10 | 常州文诺纺织品有限公司 | A kind of early-strength superfine cement grouting material |
| CN107572994B (en) * | 2017-09-30 | 2019-07-16 | 山东大学 | High Efficiency Superfine cement base combined casting material, preparation process and application for water-rich sand layer grouting treatment |
| CN108715526B (en) * | 2018-05-18 | 2020-06-05 | 中铁十二局集团有限公司 | Controllable grouting liquid for coal mining and tunnel engineering and preparation method thereof |
| CN108911568B (en) * | 2018-07-26 | 2021-01-22 | 湖南腾达岩土工程技术有限公司 | Grouting material additive and application thereof |
| CN109095802B (en) * | 2018-08-27 | 2021-11-09 | 广东睿住住工科技有限公司 | Expansive agent for concrete, concrete and preparation method thereof |
| CN110342859A (en) * | 2019-03-12 | 2019-10-18 | 北京市政建设集团有限责任公司 | A kind of silicon hybridization acrylates cement composite grouting material and preparation method thereof |
| CN110818371B (en) * | 2019-10-24 | 2021-11-30 | 山西澳华工矿山支护科技有限公司 | Inorganic reinforcing material for overspeed mine and preparation method thereof |
| CN112358263A (en) * | 2020-12-05 | 2021-02-12 | 安徽理工大学 | High-flow-state hole sealing material for underground mine and use method |
| CN112647979B (en) * | 2020-12-28 | 2022-10-11 | 中国科学院武汉岩土力学研究所 | Setting-time-controllable ultra-early-strength type micro-expansion grouting material and preparation method and application thereof |
| CN113816701B (en) * | 2021-09-03 | 2022-09-30 | 宿州市健生矿山设备有限公司 | Aluminate and portland cement based double-liquid grouting material and preparation method thereof |
| CN113651548B (en) * | 2021-09-28 | 2022-10-18 | 中南大学 | Ca/Al layered double hydroxide carbonate-based cementing material and preparation method and application thereof |
| CN114956721B (en) * | 2022-05-06 | 2023-05-23 | 山西中科赛德能源科技有限公司 | High-strength superfine deep hole grouting reinforcement material and preparation method thereof |
| CN114751714B (en) * | 2022-05-06 | 2023-02-28 | 山西中科赛德能源科技有限公司 | Inorganic rapid-hardening double-liquid grouting reinforcement material for mine |
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| CN102503310B (en) * | 2011-11-07 | 2013-05-08 | 西南交通大学 | Super-high early-strength grouting material for repairing ballastless track structure of high speed railway |
| CN103570307B (en) * | 2012-07-25 | 2016-02-03 | 陕西通宇新材料有限公司 | Corrosion-prevention rust-resistance type prestress hole path pressure grouting material |
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