CN107572978A - Bar connecting sleeve grouting material and preparation method thereof - Google Patents
Bar connecting sleeve grouting material and preparation method thereof Download PDFInfo
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- CN107572978A CN107572978A CN201710895233.6A CN201710895233A CN107572978A CN 107572978 A CN107572978 A CN 107572978A CN 201710895233 A CN201710895233 A CN 201710895233A CN 107572978 A CN107572978 A CN 107572978A
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Abstract
The invention provides a kind of bar connecting sleeve grouting material and preparation method thereof, it is related to the technical field of architectural engineering, bar connecting is mainly made up of with sleeve grouting material raw materials such as cement, aggregate, admixture, polycarboxylate water-reducer, plastic expansion agent, composite expanding agent and conditioning agents, the sleeve grouting material has big machine and 30min fluidities, microdilatancy, early strengthening and high strengthening, easy production and construction and there is reliable in quality in terms of construction, low cost, shorten the duration and it is easy to use the advantages that, and longevity of service, environmental suitability are strong.The preparation method is simple, and operation is easy, and can be just made suitable for the sleeve grouting material for bar connecting under the conditions of normal temperature and low subzero temperature by adjusting proportioning.
Description
Technical field
The present invention relates to construction engineering technical field, more particularly, to a kind of bar connecting sleeve grouting material and its preparation
Method.
Background technology
Assembled architecture has the advantages that construction speed fast, energy-conserving and environment-protective, integration, and it is important to turn into Contemporary Architecture one
Developing direction.State Council promulgates that (Office of the State Council sends out (2016) No. 71) points out, accelerates raising assembled architecture and accounts for new building area
Ratio, strive the time with 10 years or so, assembled architecture is accounted for the ratio of new building area and reach 30%.Beijing, Shanghai
Documentation requirements will be more than 30% to the year two thousand twenty, the ratio under being even more Deng big city.At present, sleeve grouting connection accounts for precast concrete
Component assembled architecture vertically connects more than the 80% of market.And important set of the sleeve grouting material as reinforced bar sleeve grouting connection
Into material, its performance determines connecting portion reliability of structure and quality stability.And in the northern area of China, unavoidably
The progress sleeve grouting in the case of less than 5 DEG C is run into, and can is applied to so research one kind can construct under normal temperature condition
Sleeve grouting material in the case of low subzero temperature has higher actual application value.
Existing sleeve grouting material quality is very different on the market, exist fluidity loss is fast, early stage vertical expansion ratio not
Up to standard, phenomena such as early stage later strength is not high, later stage volume stability difference.
Therefore, researching and developing a kind of sleeve grouting material for bar connecting suitable under the conditions of normal temperature and low subzero temperature has weight
Want meaning.
The content of the invention
It is an object of the invention to provide a kind of bar connecting sleeve grouting material, its fluidity height, microdilatancy, early strong height
By force, and easy production and construction, raw material is simple and easy to get, and normal temperature and low subzero temperature condition are just can be suitably used for by adjusting proportioning.
Another object of the present invention is to provide a kind of preparation method of bar connecting sleeve grouting material, this method letter
It is single, easy to operate, can be by adjusting raw material proportioning with regard to the bar connecting sleeve suitable for normal temperature and low subzero temperature condition can be prepared
Grouting material.
To achieve the above object, the present invention provides following technical scheme：
In a first aspect, the present invention provides a kind of bar connecting sleeve grouting material, in percentage by weight, including：
Cement 35-50%, aggregate 40-50%, admixture 5-20%, polycarboxylate water-reducer 0.3-0.8%, plastic expansion agent
0.02-0.1%, composite expanding agent 3-5%, conditioning agent 0.05-0.3%.
Further, in percentage by weight, the cement is mainly by 5-100% Portland cement and 5-
15% sulphate aluminium cement mixes, and strength of cement grade is not less than 42.5.
Further, in percentage by weight, the cement is mainly by 5-10% Portland cement and 5-
100% sulphate aluminium cement mixes, and strength of cement grade is not less than 42.5.
Further, the aggregate includes washing drying screening river sand, in percentage by weight, wherein：20-40 mesh
50-70%, 40-70 mesh 30-50%.
Further, the admixture includes the one or more in silicon ash, fly ash micro-sphere and ground slag.
Further, specific surface area >=20000m of the silicon ash2/ kg, dioxide-containing silica >=90% in the silicon ash；
And/or dioxide-containing silica >=50% in the fly ash micro-sphere, alundum (Al2O3) content >=20%；
And/or specific surface area >=600m of the ground slag2/kg。
Further, water-reducing rate >=25% of the polycarboxylate water-reducer；
And/or the plastic expansion agent includes one in azo-compound, sulfonyl hydrazines compound and nitroso compound
Kind is a variety of；
And/or the composite expanding agent includes calcium sulphoaluminate and calcium oxide.
Further, in percentage by weight, the conditioning agent includes：Polyether-modified silicon defoaming agent 0.02-0.05%,
Retarder 0.03-0.1%, coagulant 0-0.04%, early strength agent 0-0.1%, viscosity modifier 0.02-0.06%；
Or in percentage by weight, the conditioning agent includes：Polyether-modified silicon defoaming agent 0.02-0.05%, slow setting
Agent 0.03-0.1%, coagulant 0.02-0.06%, early strength agent 0.05-0.2%, viscosity modifier 0.02-0.06%.
Further, the retarder includes tartaric acid, boric acid, citric acid, borax, one kind in sodium citrate or more
Kind；
And/or the coagulant includes the one or more in lithium carbonate, lithium sulfate, lithium fluoride；
And/or the early strength agent includes the one or more in natrium nitrosum, aluminum sulfate, calcium formate；
And/or the viscosity modifier includes the one or more in cellulose ether, xanthans, welan gum.
Second aspect, the preparation method present invention also offers bar connecting with sleeve grouting material, including：
Cement, aggregate, admixture, polycarboxylate water-reducer, plastic expansion agent, composite expanding agent and tune are weighed according to formula ratio
Section agent is mixed evenly, and adds water stirring that bar connecting sleeve grouting material is made with 0.12-0.16 ratio of water to material.
Bar connecting sleeve grouting material provided by the invention and preparation method thereof has the advantages that：
First aspect present invention provides a kind of bar connecting sleeve grouting material, in percentage by weight, including：Cement
35-50%, aggregate 40-50%, admixture 5-20%, polycarboxylate water-reducer 0.3-0.8%, plastic expansion agent 0.02-0.1%,
Composite expanding agent 3-5%, conditioning agent 0.05-0.3%, add water stirring that bar connecting set is made with 0.12-0.16 ratio of water to material
Cylinder grouting material.
The bar connecting that first aspect present invention provides is with sleeve grouting material mainly by cement, aggregate, admixture, polycarboxylic acids
The raw materials such as water reducer, plastic expansion agent, composite expanding agent and conditioning agent form, the sleeve grouting material have machine fluidity it is big,
Microdilatancy, early strengthening and high strengthening, easy production and construction and there is reliable in quality in terms of construction, reduce cost, shorten duration and user
Just the advantages that, and longevity of service, environmental suitability are strong.
The preparation method for the bar connecting sleeve grouting material that second aspect of the present invention provides, it is equal by the way that each raw material is mixed
Add water according to the ratio of water to material in formula after even, bar connecting sleeve grouting material is made.The preparation method is simple, and operation is easy,
And it can be just made suitable for the sleeve grouting material for bar connecting under the conditions of normal temperature and low subzero temperature by adjusting proportioning.
Embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the present invention.It is unreceipted specific in embodiment
Condition person, the condition suggested according to normal condition or manufacturer are carried out.Agents useful for same or the unreceipted production firm person of instrument, it is
The conventional products that can be obtained by commercially available purchase.
According to an aspect of the invention, there is provided a kind of bar connecting sleeve grouting material, in percentage by weight,
Including：
Cement 35-50%, aggregate 40-50%, admixture 5-20%, polycarboxylate water-reducer 0.3-0.8%, plastic expansion agent
0.02-0.1%, composite expanding agent 3-5%, conditioning agent 0.05-0.3%.
Embodiment one
One kind that the present embodiment provides is adapted to the ungauged regions reinforcing bar sleeve for connection grouting that (>=5 DEG C) use at normal temperatures
Material, the grouting material have big machine and 30min fluidities, microdilatancy, early strengthening and high strengthening, easy production and construction, longevity of service, environment
Strong adaptability.
In the present embodiment, cement is mainly by Portland cement and the 5-15% weight of 5-100% percentage by weights
The sulphate aluminium cement of amount percentage mixes, and strength of cement grade is not less than 42.5.Using strength of cement grade 42.5
The multiple proper amount of sulphate aluminium cement of strength of cement grade 42.5 of Portland cement, can ensure filling under low water binder ratio
1d, 3d intensity of slurry, and can ensures later strength sustainable growth, and P.O42.5 cement qualities are stable and are commonly easy to get.
In the present embodiment, the typical but non-limiting percentage by weight of aggregate be 40%, 41%, 42%, 43%,
44% or 45%.Aggregate includes washing drying screening river sand, in percentage by weight, wherein：20-40 mesh 50-70%, 40-
70 mesh 30-50%.Specifically, the washing drying screening river sand typical but non-limiting percentage by weight of 20-40 mesh be 50%,
52%th, 54%, 56%, 58%, 60%, 62%, 64%, 66%, 68% or 70%；The washing drying screening river sand of 40-70 mesh
Typical but non-limiting percentage by weight is 30%, 32%, 34%, 36%, 38%, 40%, 42%, 44%, 46%, 48%
Or 50%.The washing drying screening river sand of optimization particle size range both can guarantee that good mobility, there is higher intensity again, and
Raw material are conveniently easy to get.
In the present embodiment, the typical but non-limiting percentage by weight of admixture be 5%, 6%, 7%, 8%, 9%,
10%th, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19% or 20%.Admixture includes silicon ash, flyash
One or more in microballon and ground slag.Wherein：
Specific surface area >=20000m of silicon ash2/ kg, dioxide-containing silica >=90% in silicon ash；
Dioxide-containing silica >=50% in fly ash micro-sphere, alundum (Al2O3) content >=20%；
Specific surface area >=600m of ground slag2/kg。
The addition of admixture fly ash micro-sphere can both reduce the viscosity of grouting material, and silicon ash, ground slag and can participate in water
Change the pore size distribution$ that reaction improves the compactness improvement hardening grouting material of grouting material, have to the intensity and durability of grouting material
It is obvious to improve.
In the present embodiment, the typical but non-limiting percentage by weight of polycarboxylate water-reducer be 0.3%, 0.4%,
0.5%th, 0.6%, 0.7% or 0.8%.Water-reducing rate >=25% of polycarboxylate water-reducer.Polycarboxylate water-reducer and cement-based material
With good adaptability, it both can guarantee that under relatively low volume and newly mixed the mobility of grouting material and longer working time, again
Obvious deferred action will not be played to hydrated cementitious.
In the present embodiment, the typical but non-limiting percentage by weight of plastic expansion agent be 0.02%, 0.03%,
0.04%th, 0.05%, 0.06%, 0.07%, 0.08%, 0.09% or 0.1%.Plastic expansion agent includes azo-compound, sulphur
One or more in hydrazide kind compound and nitroso compound.
In the present embodiment, the typical but non-limiting percentage by weight of composite expanding agent be 3%, 3.1%, 3.2%,
3.3%th, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4.0%, 4.1%, 4.2%, 4.3%, 4.4%,
4.5%th, 4.6%, 4.7%, 4.8%, 4.9% or 5%；Composite expanding agent is mainly by calcium sulphoaluminate class compound and calcium oxide
Compound is combined, and is specifically as follows calcium sulphoaluminate class compound and calcium oxide compound with 3:1 is combined.
Plastic expansion agent can be very good to compensate early-age shrinkage, and compound calcium sulphoaluminate-calcium oxide expansion agents can be fine
Compensation hardening after contraction.
In the present embodiment, the typical but non-limiting percentage by weight of conditioning agent be 0.05%, 0.06%,
0.07%th, 0.08%, 0.09%, 0.1%, 0.11%, 0.12%, 0.13%, 0.14%, 0.15%, 0.16%, 0.17%,
0.18%th, 0.19%, 0.2%, 0.22%, 0.24%, 0.26%, 0.28% or 0.3%.In percentage by weight, adjust
Agent includes：Polyether-modified silicon defoaming agent 0.02-0.05%, retarder 0.03-0.1%, coagulant 0-0.04%, early strength agent 0-
0.1%, viscosity modifier 0.02-0.06%, it is powdered rubber above.
Wherein, the typical but non-limiting percentage by weight of polyether-modified silicon defoaming agent is 0.02%, 0.03%, 0.04%
Or 0.05%；
The typical but non-limiting percentage by weight of retarder be 0.03%, 0.04%, 0.05%, 0.06%, 0.07%,
0.08%th, 0.09% or 0.1%；Retarder includes the one or more in tartaric acid, boric acid, citric acid and its esters；
The typical but non-limiting percentage by weight of coagulant be 0%, 0.005%, 0.01%, 0.015%, 0.02%,
0.025%th, 0.03%, 0.035%, 0.04%；Coagulant includes the one or more in lithium carbonate, lithium sulfate, lithium fluoride；
The typical but non-limiting percentage by weight of early strength agent be 0%, 0.01%, 0.02%, 0.03%, 0.04%,
0.05%th, 0.06%, 0.07%, 0.08%, 0.09% or 0.1%；Early strength agent is included in natrium nitrosum, aluminum sulfate, calcium formate
One or more.
The typical but non-limiting percentage by weight of viscosity modifier be 0.02%, 0.025%, 0.03%, 0.035%,
0.04%th, 0.045%, 0.05%, 0.055% or 0.06%；Viscosity modifier is included in cellulose ether, xanthans, welan gum
One or more.
Defoamer in conditioning agent can reduce air pocket in grouting material as far as possible and improve density；Appropriate viscosity modifier can
To ensure the homogeneity of grouting material, the sensitiveness to water consumption is improved；Retarder and coagulant ensure the working time of grouting material
And early strength.
In present embodiment, using Portland cement as major gelled material, it is aided with a small amount of sulphate aluminium cement and helps
Agent, under conditions of 1d intensity >=50MPa is obtained, the higher slurries of basicity are also obtained, passivating film are formed in rebar surface, to steel
Muscle plays corrosion protective effect.
Embodiment two
Present embodiment provides a kind of ungauged regions reinforcing bar sleeve for connection grouting used in low subzero temperature (- 10 DEG C -5 DEG C)
Material, the grouting material have machine fluidity big, microdilatancy, an early strengthening and high strengthening, the advantages that easy production and construction.
In the present embodiment, cement is mainly by Portland cement and the 5-100% weight of 5-10% percentage by weights
The sulphate aluminium cement of amount percentage mixes, and strength of cement grade is not less than 42.5.
In the present embodiment, the percentage by weight of conditioning agent is 0.05-0.3%, and specifically, conditioning agent is typical but non-limit
The percentage by weight of property processed be 0.05%, 0.06%, 0.07%, 0.08%, 0.09%, 0.1%, 0.11%, 0.12%,
0.13%th, 0.14%, 0.15%, 0.16%, 0.17%, 0.18%, 0.19%, 0.2%, 0.22%, 0.24%, 0.26%,
0.28% or 0.3%.In percentage by weight, conditioning agent includes：Polyether-modified silicon defoaming agent 0.02~0.05%, retarder
0.03~0.1%, coagulant 0~0.04%, early strength agent 0.05-0.2%, viscosity modifier 0.02~0.06%.
Wherein, the typical but non-limiting percentage by weight of polyether-modified silicon defoaming agent is 0.02%, 0.03%, 0.04%
Or 0.05%；
The typical but non-limiting percentage by weight of retarder be 0.03%, 0.04%, 0.05%, 0.06%, 0.07%,
0.08%th, 0.09% or 0.1%；Retarder includes tartaric acid, boric acid, citric acid, borax, one kind in sodium citrate or more
Kind；
The typical but non-limiting percentage by weight of coagulant be 0%, 0.005%, 0.01%, 0.015%, 0.02%,
0.025%th, 0.03%, 0.035%, 0.04%；Coagulant includes the one or more in lithium carbonate, lithium sulfate, lithium fluoride；
The typical but non-limiting percentage by weight of early strength agent be 0.05%, 0.06%, 0.07%, 0.08%, 0.09%,
0.1%th, 0.11%, 0.12%, 0.13%, 0.14%, 0.15%, 0.16%, 0.17%, 0.18%, 0.19% or 0.2%；
Early strength agent includes the one or more in natrium nitrosum, aluminum sulfate, calcium formate.
The typical but non-limiting percentage by weight of viscosity modifier be 0.02%, 0.025%, 0.03%, 0.035%,
0.04%th, 0.045%, 0.05%, 0.055% or 0.06%；Viscosity modifier is included in cellulose ether, xanthans, welan gum
One or more.
Defoamer in conditioning agent can reduce air pocket in grouting material as far as possible and improve density；Appropriate viscosity modifier can
To ensure the homogeneity of grouting material, the sensitiveness to water consumption is improved；Retarder and coagulant ensure the working time of grouting material
And early strength.
The requirement of other materials and proportioning are identical with the requirement of sleeve grouting material with (>=5 DEG C) bar connecting under normal temperature.
In present embodiment, using sulphate aluminium cement as major gelled material, it is aided with a small amount of Portland cement early
The auxiliary agents such as strong agent, coagulant, can guarantee that grouting material fast hydration under the conditions of low subzero temperature, are advantageous to low construction in minus-temperature environment.
According to JGJ355-2015《Straight screw sleeve connection application technology code》It is required that environment temperature should not be applied less than 5 DEG C
Work, it must not be constructed less than 0 DEG C.In the ungauged regions reinforcing bar sleeve for connection grouting material that low subzero temperature (- 10 DEG C -5 DEG C) uses to construction
Requirement be：
1st, grouting material is stored in more than 5 DEG C of environment, and the water for mixing and stirring grouting material uses 20-40 DEG C of warm water according to material temperature
Mix and stir, control the grouting material slurry temperature mixed between 10 DEG C -20 DEG C；
2nd, it more than 0 DEG C of temperature must start to construct in grout sleeve, and ensure that grouting terminates the temperature of grout sleeve in rear 5h
Degree needs to take Heat preservation measure between 0 DEG C -10 DEG C less than the temperature；
3rd, stirring slurry should not be excessive every time for low subzero temperature condition lower sleeve grouting, it is ensured that grouting is completed in 20min.
According to another aspect of the present invention, a kind of preparation method of bar connecting sleeve grouting material is additionally provided, is wrapped
Include：
Cement, aggregate, admixture, polycarboxylate water-reducer, plastic expansion agent, composite expanding agent and tune are weighed according to formula ratio
Section agent is mixed evenly, and adds water stirring that bar connecting sleeve grouting material is made with 0.12-0.16 ratio of water to material.
In the above-mentioned methods, typical but non-limiting ratio of water to material can be 0.12,0.13,0.14,0.15 or 0.16.
With reference to specific embodiment, the invention will be further described.
Embodiment one
The invention provides the bar connecting sleeve grouting material used under a kind of suitable normal temperature condition, including following weight
The component of percentage：Cement 45%, aggregate 42%, admixture 8%, polycarboxylate water-reducer 0.3%, plastic expansion agent 0.05%,
Compound swelling agent 4.58%, conditioning agent 0.07%.Ratio of water to material can be 0.14 in bar connecting sleeve grouting material preparation process.
Wherein, the Portland cement and 8% strength grade that cement is 42.5 by 92% strength grade are 42.5
Sulphate aluminium cement be combined by weight percentage.
Aggregate is washing drying screening river sand, and 20-40 mesh 58% and 40-70 mesh 42% by weight percentage is combined.
Conditioning agent defoamer 60% by weight percentage, retarder 15% and viscosity modifier 25% are combined.
Embodiment two
The invention provides the bar connecting sleeve grouting material used under a kind of suitable normal temperature condition, including following weight
The component of percentage：Cement 48%, aggregate 40%, admixture 7%, polycarboxylate water-reducer 0.4%, plastic expansion agent 0.06%,
Compound swelling agent 4.48%, conditioning agent 0.06%.Ratio of water to material can be 0.16 in bar connecting sleeve grouting material preparation process.
Wherein, cement is by sulphur that 91% Portland cement of strength grade 42.5 and 9% strength grade are 42.5
Aluminate cement is combined by weight percentage.
Aggregate is washing drying screening river sand, and 20-40 mesh 60% and 40-70 mesh 40% by weight percentage is combined.
Conditioning agent defoamer 50% by weight percentage, retarder 25%, viscosity modifier 25% are combined.
Embodiment three
The invention provides the bar connecting sleeve grouting material used under a kind of suitable normal temperature condition, including following weight
The component of percentage：Cement 40%, aggregate 45%, admixture 10%, polycarboxylate water-reducer 0.5%, plastic expansion agent 0.09%,
Compound swelling agent 4.31%, conditioning agent 0.1%.Ratio of water to material can be 0.12 in bar connecting sleeve grouting material preparation process.
Wherein, cement is by sulphur that 90% Portland cement of strength grade 42.5 and 10% strength grade are 42.5
Aluminate cement is combined by weight percentage.
Aggregate is washing drying screening river sand, and 20-40 mesh 62% and 40-70 mesh 38% by weight percentage is combined.
Conditioning agent defoamer 50% by weight percentage, retarder 30%, viscosity modifier 20% are combined.
Example IV
The invention provides a kind of bar connecting for being adapted to use under the conditions of low subzero temperature (- 10 DEG C -5 DEG C) to be in the milk with sleeve
Material, including following components in percentage by weight：Cement 48%, aggregate 42%, admixture 5%, polycarboxylate water-reducer 0.4%, modeling
Property swelling agent 0.06%, compound swelling agent 4.37%, conditioning agent 0.17%.Bar connecting sleeve grouting material preparation process reclaimed water
It can be 0.13 to expect ratio.
Wherein, cement is 42.5 Portland cements by 5% strength grade and 95% strength grade is 42.5
Sulphate aluminium cement is combined by weight percentage.
Aggregate is washing drying screening river sand, and 20-40 mesh 60% and 40-70 mesh 40% by weight percentage is combined.
Conditioning agent defoamer 23% by weight percentage, retarder 35%, coagulant 23%, viscosity modifier 19% are compound
Form.
Embodiment five
The invention provides a kind of bar connecting for being adapted to use under the conditions of low subzero temperature (- 10 DEG C -5 DEG C) to be in the milk with sleeve
Material, including following components in percentage by weight：Cement 46%, aggregate 43%, admixture 7%, polycarboxylate water-reducer 0.4%, modeling
Property swelling agent 0.08%, compound swelling agent 3.35%, conditioning agent 0.17%.Bar connecting sleeve grouting material preparation process reclaimed water
It can be 0.14 to expect ratio.
Wherein, cement is 42.5 Portland cements by 5% strength grade and 95% strength grade is 42.5
Sulphate aluminium cement is combined by weight percentage.
Aggregate is washing drying screening river sand, and 20-40 mesh 60% and 40-70 mesh 40% by weight percentage is combined.
Conditioning agent defoamer 23% by weight percentage, retarder 33%, coagulant 25%, viscosity modifier 19% are compound
Form.
After each component of embodiment one, two, three is well mixed, add at a temperature of laboratory standard according to corresponding ratio of water to material
The reinforcing steel bar connecting sleeve tube grouting material used under suitable normal temperature is made in water stirring, is molded the physical property after standard curing and see the table below；
24h under the conditions of well mixed dry mash is placed on 5 DEG C by example IV, five, aftershaping is mixed and stirred with 20 DEG C of water, in 0 DEG C of maintenance
It is respectively put into after 5h under conditions of -5 DEG C and -10 DEG C after conserving 3d, is put into standard curing room and conserves to age and survey its 1d, 3d, 28d
Intensity.
Table 1 is detected intensities and JG/T408-2013 in each embodiment《Bar connecting sleeve grouting material》Performance mark
Quasi- value contrast list
Table 2 is that detected intensities contrast list with domestic like product and Japanese like product in each embodiment
It should be noted that example IV and embodiment five be due to requiring that its engineering time is no more than 25min, after having constructed
Simultaneously intensity develops rapidly for rapid condensation hardening, so not investigating 30min fluidities；Example IV and embodiment five exist at low temperature
It is transferred to before conserving under the conditions of subzero temperature its intensity after 5h is conserved at 0 DEG C and has been above 10MPa, this is that it recovers intensity after mark is supported
Continue the precondition and guarantee of normal development.
Bar connecting provided by the invention is good with sleeve grouting material performance it can be seen from above-mentioned Tables 1 and 2, completely full
Sufficient JG/T408-2013《Bar connecting sleeve grouting material》Standard provides that its early strength is not less than prior art, and the later stage is strong
Degree is higher than prior art.
Bar connecting sleeve grouting material of the present invention and preparation method thereof is illustrated above, still, the present invention
Be not limited to above-mentioned specific embodiment, without departing from the scope of claim, can carry out various deformations or
Change.The invention includes various changes and modifications within the scope of the claims.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
Invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：It is still
Technical scheme described in foregoing embodiments can be modified, either which part or all technical characteristic are carried out
Equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technical side
The scope of case.
Claims (10)
- A kind of 1. bar connecting sleeve grouting material, it is characterised in that in percentage by weight, including：Cement 35-50%, aggregate 40-50%, admixture 5-20%, polycarboxylate water-reducer 0.3-0.8%, plastic expansion agent 0.02-0.1%, composite expanding agent 3-5%, conditioning agent 0.05-0.3%.
- 2. bar connecting according to claim 1 sleeve grouting material, it is characterised in that in percentage by weight, institute Cement is stated mainly to be mixed by 5-100% Portland cement and 5-15% sulphate aluminium cement, and strength of cement Grade is not less than 42.5.
- 3. bar connecting according to claim 1 sleeve grouting material, it is characterised in that in percentage by weight, institute Cement is stated mainly to be mixed by 5-10% Portland cement and 5-100% sulphate aluminium cement, and strength of cement Grade is not less than 42.5.
- 4. bar connecting according to claim 1 sleeve grouting material, it is characterised in that the aggregate, which includes washing, dries River sand is sieved, in percentage by weight, wherein：20-40 mesh 50-70%, 40-70 mesh 30-50%.
- 5. bar connecting according to claim 1 sleeve grouting material, it is characterised in that the admixture include silicon ash, One or more in fly ash micro-sphere and ground slag.
- 6. bar connecting according to claim 5 sleeve grouting material, it is characterised in that the specific surface area of the silicon ash >= 20000m2/ kg, dioxide-containing silica >=90% in the silicon ash；And/or dioxide-containing silica >=50% in the fly ash micro-sphere, alundum (Al2O3) content >=20%；And/or specific surface area >=600m of the ground slag2/kg。
- 7. bar connecting according to claim 1 sleeve grouting material, it is characterised in that the polycarboxylate water-reducer subtracts Water rate >=25%；And/or the plastic expansion agent include azo-compound, sulfonyl hydrazines compound and one kind in nitroso compound or It is a variety of；And/or the composite expanding agent includes calcium sulphoaluminate and calcium oxide.
- 8. bar connecting according to claim 1 sleeve grouting material, it is characterised in that in percentage by weight, institute Stating conditioning agent includes：Polyether-modified silicon defoaming agent 0.02-0.05%, retarder 0.03-0.1%, coagulant 0-0.04% are early strong Agent 0-0.1%, viscosity modifier 0.02-0.06%；Or in percentage by weight, the conditioning agent includes：Polyether-modified silicon defoaming agent 0.02-0.05%, retarder 0.03-0.1%, coagulant 0.02-0.06%, early strength agent 0.05-0.2%, viscosity modifier 0.02-0.06%.
- 9. bar connecting according to claim 8 sleeve grouting material, it is characterised in that the retarder includes winestone One or more in acid, boric acid, citric acid, borax, sodium citrate；And/or the coagulant includes the one or more in lithium carbonate, lithium sulfate, lithium fluoride；And/or the early strength agent includes the one or more in natrium nitrosum, aluminum sulfate, calcium formate；And/or the viscosity modifier includes the one or more in cellulose ether, xanthans, welan gum.
- 10. the preparation method of the bar connecting sleeve grouting material any one of claim 1-9, it is characterised in that bag Include：Cement, aggregate, admixture, polycarboxylate water-reducer, plastic expansion agent, composite expanding agent and conditioning agent are weighed according to formula ratio After being mixed evenly, add water stirring that bar connecting sleeve grouting material is made with 0.12-0.16 ratio of water to material.
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| CN201710895233.6A CN107572978A (en) | 2017-09-27 | 2017-09-27 | Bar connecting sleeve grouting material and preparation method thereof |
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| CN108314393A (en) * | 2018-03-20 | 2018-07-24 | 中冶建筑研究总院有限公司 | A kind of low temperature environment bar connecting grouting material and its preparation method and application |
| CN108929079A (en) * | 2018-08-01 | 2018-12-04 | 浙江省通用砂浆研究院 | A kind of assembled architecture seismic crack sleeve grouting material and preparation method thereof |
| CN108929084A (en) * | 2018-08-03 | 2018-12-04 | 上海住信住宅工业有限公司 | Reinforcing bar sleeve for connection grouting material |
| CN108947424A (en) * | 2018-08-30 | 2018-12-07 | 成都宏基建材股份有限公司 | A kind of fiber reinforcement reinforcing bar sleeve for connection grouting material and preparation method thereof |
| CN108947423A (en) * | 2018-08-30 | 2018-12-07 | 成都宏基建材股份有限公司 | A kind of reinforcing bar sleeve for connection grouting material of high fluidity and preparation method thereof |
| CN108947421A (en) * | 2018-08-01 | 2018-12-07 | 浙江省通用砂浆研究院 | A kind of assembled architecture impervious sleeve grouting material and preparation method thereof |
| CN108996975A (en) * | 2018-09-17 | 2018-12-14 | 武汉源锦建材科技有限公司 | A kind of subzero temperature steel bar sleeve for connection grouting material and preparation method thereof |
| CN109020420A (en) * | 2018-08-30 | 2018-12-18 | 成都宏基建材股份有限公司 | A kind of reinforcing bar sleeve for connection grouting material and preparation method thereof with rust prevention function |
| CN109180118A (en) * | 2018-11-20 | 2019-01-11 | 长江水利委员会长江科学院 | A kind of subzero temperature reinforced bar sleeve grouting material and preparation method thereof |
| CN109180114A (en) * | 2018-08-30 | 2019-01-11 | 成都宏基建材股份有限公司 | A kind of reinforcing bar sleeve for connection grouting material and preparation method thereof |
| CN109665780A (en) * | 2019-01-28 | 2019-04-23 | 上海恒福科技发展有限公司 | A kind of high flowability reinforcing steel bar connecting sleeve tube grouting material and preparation method thereof |
| CN109896805A (en) * | 2018-06-27 | 2019-06-18 | 湖北工业大学 | A kind of preparation method of nanometer alumina modified slurry anchor connection grouting material |
| CN110128088A (en) * | 2019-05-21 | 2019-08-16 | 武汉沃尔浦科技有限公司 | A kind of high fluidity reinforcing bar sleeve for connection grouting material |
| CN110540401A (en) * | 2019-10-22 | 2019-12-06 | 武汉合创炬盛科技有限公司 | sleeve grouting material for high-temperature steel bar connection and preparation method thereof |
| CN110950616A (en) * | 2019-12-17 | 2020-04-03 | 北京市市政工程研究院 | Grouting material for low-temperature steel bar sleeve connection and preparation method and application thereof |
| CN111018455A (en) * | 2019-12-19 | 2020-04-17 | 上海城建建设实业集团新型建筑材料嘉兴有限公司 | Low-temperature type reinforcing steel bar connecting sleeve grouting material and preparation method thereof |
| CN111302730A (en) * | 2020-02-25 | 2020-06-19 | 湖南加美乐素新材料股份有限公司 | Preparation method of grouting material special for fabricated building |
| CN111574100A (en) * | 2020-05-29 | 2020-08-25 | 酒泉一品太华建筑外加剂生产有限公司 | High-strength self-leveling grouting material |
| CN112079607A (en) * | 2020-09-22 | 2020-12-15 | 武汉工程大学 | Proportioning and preparation method for improving frost resistance of sleeve grouting material for connecting steel bars |
| CN112110672A (en) * | 2020-09-15 | 2020-12-22 | 武汉比邻科技发展有限公司 | Super early strength admixture, preparation method thereof and low-temperature sleeve grouting material for steel bar connection |
| CN112174617A (en) * | 2020-09-18 | 2021-01-05 | 中国铁道科学研究院集团有限公司金属及化学研究所 | Sleeve grouting material for connecting reinforcing steel bars and preparation method and application thereof |
| CN113060998A (en) * | 2021-04-20 | 2021-07-02 | 北京市建筑工程研究院有限责任公司 | Sleeve grouting material for connecting reinforcing steel bars in winter construction and preparation method thereof |
| CN113513123A (en) * | 2021-07-28 | 2021-10-19 | 河南省第一建筑工程集团有限责任公司 | Grouting heat-storage maintenance construction method for prefabricated vertical member in low-temperature environment |
| CN113582637A (en) * | 2021-08-03 | 2021-11-02 | 山东诺为新材料科技有限公司 | High-strength sleeve grouting material |
| CN114455925A (en) * | 2022-02-24 | 2022-05-10 | 中交路桥建设有限公司 | High-performance grouting material for connecting assembled bridge reinforcing steel bar sleeve and application method and application thereof |
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| CN102007083A (en) * | 2007-12-18 | 2011-04-06 | Sika技术股份公司 | Multicomponent composition for filling and/or grouting cracks, flaws, and cavities in structures or earth and stone formations |
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| CN108314393A (en) * | 2018-03-20 | 2018-07-24 | 中冶建筑研究总院有限公司 | A kind of low temperature environment bar connecting grouting material and its preparation method and application |
| CN109896805A (en) * | 2018-06-27 | 2019-06-18 | 湖北工业大学 | A kind of preparation method of nanometer alumina modified slurry anchor connection grouting material |
| CN108929079A (en) * | 2018-08-01 | 2018-12-04 | 浙江省通用砂浆研究院 | A kind of assembled architecture seismic crack sleeve grouting material and preparation method thereof |
| CN108947421A (en) * | 2018-08-01 | 2018-12-07 | 浙江省通用砂浆研究院 | A kind of assembled architecture impervious sleeve grouting material and preparation method thereof |
| CN108929079B (en) * | 2018-08-01 | 2020-12-15 | 浙江省通用砂浆研究院 | Anti-seismic and anti-cracking sleeve grouting material for prefabricated building and preparation method thereof |
| CN108947421B (en) * | 2018-08-01 | 2021-03-19 | 浙江省通用砂浆研究院 | Impermeable sleeve grouting material for fabricated building and preparation method thereof |
| CN108929084A (en) * | 2018-08-03 | 2018-12-04 | 上海住信住宅工业有限公司 | Reinforcing bar sleeve for connection grouting material |
| CN108947424A (en) * | 2018-08-30 | 2018-12-07 | 成都宏基建材股份有限公司 | A kind of fiber reinforcement reinforcing bar sleeve for connection grouting material and preparation method thereof |
| CN108947423A (en) * | 2018-08-30 | 2018-12-07 | 成都宏基建材股份有限公司 | A kind of reinforcing bar sleeve for connection grouting material of high fluidity and preparation method thereof |
| CN109020420A (en) * | 2018-08-30 | 2018-12-18 | 成都宏基建材股份有限公司 | A kind of reinforcing bar sleeve for connection grouting material and preparation method thereof with rust prevention function |
| CN109180114A (en) * | 2018-08-30 | 2019-01-11 | 成都宏基建材股份有限公司 | A kind of reinforcing bar sleeve for connection grouting material and preparation method thereof |
| CN108996975A (en) * | 2018-09-17 | 2018-12-14 | 武汉源锦建材科技有限公司 | A kind of subzero temperature steel bar sleeve for connection grouting material and preparation method thereof |
| CN109180118A (en) * | 2018-11-20 | 2019-01-11 | 长江水利委员会长江科学院 | A kind of subzero temperature reinforced bar sleeve grouting material and preparation method thereof |
| CN109665780A (en) * | 2019-01-28 | 2019-04-23 | 上海恒福科技发展有限公司 | A kind of high flowability reinforcing steel bar connecting sleeve tube grouting material and preparation method thereof |
| CN110128088A (en) * | 2019-05-21 | 2019-08-16 | 武汉沃尔浦科技有限公司 | A kind of high fluidity reinforcing bar sleeve for connection grouting material |
| CN110540401A (en) * | 2019-10-22 | 2019-12-06 | 武汉合创炬盛科技有限公司 | sleeve grouting material for high-temperature steel bar connection and preparation method thereof |
| CN110540401B (en) * | 2019-10-22 | 2022-06-28 | 武汉合创炬盛科技有限公司 | Sleeve grouting material for high-temperature steel bar connection and preparation method thereof |
| CN110950616A (en) * | 2019-12-17 | 2020-04-03 | 北京市市政工程研究院 | Grouting material for low-temperature steel bar sleeve connection and preparation method and application thereof |
| CN111018455A (en) * | 2019-12-19 | 2020-04-17 | 上海城建建设实业集团新型建筑材料嘉兴有限公司 | Low-temperature type reinforcing steel bar connecting sleeve grouting material and preparation method thereof |
| CN111302730A (en) * | 2020-02-25 | 2020-06-19 | 湖南加美乐素新材料股份有限公司 | Preparation method of grouting material special for fabricated building |
| CN111574100A (en) * | 2020-05-29 | 2020-08-25 | 酒泉一品太华建筑外加剂生产有限公司 | High-strength self-leveling grouting material |
| CN112110672A (en) * | 2020-09-15 | 2020-12-22 | 武汉比邻科技发展有限公司 | Super early strength admixture, preparation method thereof and low-temperature sleeve grouting material for steel bar connection |
| CN112110672B (en) * | 2020-09-15 | 2022-05-10 | 武汉比邻科技发展有限公司 | Ultra-early-strength admixture, preparation method thereof and low-temperature sleeve grouting material for steel bar connection |
| CN112174617A (en) * | 2020-09-18 | 2021-01-05 | 中国铁道科学研究院集团有限公司金属及化学研究所 | Sleeve grouting material for connecting reinforcing steel bars and preparation method and application thereof |
| CN112079607A (en) * | 2020-09-22 | 2020-12-15 | 武汉工程大学 | Proportioning and preparation method for improving frost resistance of sleeve grouting material for connecting steel bars |
| CN113060998A (en) * | 2021-04-20 | 2021-07-02 | 北京市建筑工程研究院有限责任公司 | Sleeve grouting material for connecting reinforcing steel bars in winter construction and preparation method thereof |
| CN113060998B (en) * | 2021-04-20 | 2022-08-30 | 北京市建筑工程研究院有限责任公司 | Sleeve grouting material for connecting reinforcing steel bars in winter construction and preparation method thereof |
| CN113513123A (en) * | 2021-07-28 | 2021-10-19 | 河南省第一建筑工程集团有限责任公司 | Grouting heat-storage maintenance construction method for prefabricated vertical member in low-temperature environment |
| CN113582637A (en) * | 2021-08-03 | 2021-11-02 | 山东诺为新材料科技有限公司 | High-strength sleeve grouting material |
| CN114455925A (en) * | 2022-02-24 | 2022-05-10 | 中交路桥建设有限公司 | High-performance grouting material for connecting assembled bridge reinforcing steel bar sleeve and application method and application thereof |
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