CN107935517A - Quick-hardening sleeve grouting material and its preparation and application for bar connecting - Google Patents

Quick-hardening sleeve grouting material and its preparation and application for bar connecting Download PDF

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Publication number
CN107935517A
CN107935517A CN201711320757.9A CN201711320757A CN107935517A CN 107935517 A CN107935517 A CN 107935517A CN 201711320757 A CN201711320757 A CN 201711320757A CN 107935517 A CN107935517 A CN 107935517A
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China
Prior art keywords
agent
grouting
quick
bar
parts
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CN201711320757.9A
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CN107935517B (en
Inventor
戢文占
郭海山
张涛
王宝华
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China State Construction Engineering Corp Ltd
China State Construction Engineering Research Institute Co Ltd
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China State Construction Engineering Corp Ltd
China State Construction Engineering Research Institute Co Ltd
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Priority to CN201711320757.9A priority Critical patent/CN107935517B/en
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions 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
    • C04B28/06Aluminous cements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/18Spacers of metal or substantially of metal
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

Abstract

The present invention relates to building material technical field, discloses a kind of quick-hardening sleeve grouting material and its preparation and application for bar connecting.The present invention includes the component of following parts by weight:42.5~49 parts of sulphate aluminium cement, 1.5~3 parts of silicon ash, 45~55 parts of sand, composite expanding agent A0.2~0.5 part, 2~3 parts of composite expanding agent B, 0.25~0.5 part of water-reducing agent, 0.05~0.15 part of defoamer, 0.1~0.3 part of 0.15~0.25 part of stabilizer, compound agent of regulating coagulating A0.025~0.05 part and compound agent of regulating coagulating B.Rate of set of the present invention is fast, and firm time is short, and construction intensity demand is can reach in 2h.

Description

Quick-hardening sleeve grouting material and its preparation and application for bar connecting
Technical field
The present invention relates to building material technical field, is filled more particularly to a kind of quick-hardening sleeve for bar connecting Slurry and its preparation and application.
Background technology
Prefabricated concrete structure is that component is prefabricated in the factory, and assembles the construction style of construction at the construction field (site), this Form has many advantages, such as, reduces dust and the noise pollution of construction site, and the quality of concrete component is more secure, construction Speed is fast, and structure is more safe and reliable etc., but the connection between prefabricated member, or prefabricated member and existing basis Member connecting, needs to carry out sleeve grouting fixation, this is the most common connection mode in current construction site mostly.
In the market existing sleeve grouting material setting time is slow, and when condensation firm time is small more than 5, early strength is low, Generally predetermined intensity is can be only achieved after the 24h that constructs, carry out the construction of next step, leverage speed of application, extended Construction period.Although the speed that some existing early-strength grouting materials condense hardening makes moderate progress, but dispensing complicated components, raw Produce of high cost, but the hardening strength in the short time is still unable to reach construction requirement.
The content of the invention
A kind of rate of set of present invention offer is fast, and firm time is short, and being used for for construction intensity demand is can reach in 2h The quick-hardening sleeve grouting material of bar connecting.
The technical problem of solution is:Existing grouting material setting time is slow, and early strength is low, generally will be in construction 24h After can be only achieved construction requirement intensity, leverage speed of application, extend construction period.
In order to solve the above technical problems, the present invention adopts the following technical scheme that:
The present invention is used for the quick-hardening sleeve grouting material of bar connecting, includes the component of following parts by weight:
42.5~49 parts of sulphate aluminium cement, 1.5~3 parts of silicon ash, 45~55 parts of sand, composite expanding agent A 0.2~0.5 Part, 2~3 parts of composite expanding agent B, 0.25~0.5 part of water-reducing agent, 0.05~0.15 part of defoamer, stabilizer 0.15~0.25 Part, 0.1~0.3 part of 0.025~0.05 part of compound agent of regulating coagulating A and compound agent of regulating coagulating B.
The present invention is used for the quick-hardening sleeve grouting material of bar connecting, further, SiO in the silicon ash2Content Not less than 95%, the specific surface area of silicon ash is not less than 20000m2/kg。
The present invention is used for the quick-hardening sleeve grouting material of bar connecting, and further, the composite expanding agent A includes ten The consumption proportion of dialkyl benzene sulfonic acids sodium and triterpenoid saponin, neopelex and triterpenoid saponin is 1:3.
The present invention is used for the quick-hardening sleeve grouting material of bar connecting, and further, the composite expanding agent B includes calcium The consumption proportion of aluminite and calcium oxide, entringite and calcium oxide is 1:1.
The present invention is used for the quick-hardening sleeve grouting material of bar connecting, and further, the water-reducing agent subtracts for polycarboxylic acids Aqua, the defoamer are organic silicon defoamer.
The present invention is used for the quick-hardening sleeve grouting material of bar connecting, and further, the stabilizer is cellulose ether.
The present invention is used for the quick-hardening sleeve grouting material of bar connecting, and further, the compound agent of regulating coagulating A includes four The consumption proportion of Boratex and sodium gluconate, sodium tetraborate and sodium gluconate is 2:1.
The present invention is used for the quick-hardening sleeve grouting material of bar connecting, and further, the compound agent of regulating coagulating B includes first The consumption proportion of sour calcium and lithium carbonate, calcium formate and lithium carbonate is 1:2.
The present invention is used for the preparation method of the quick-hardening sleeve grouting material of bar connecting, comprises the following steps:
Step 1: stock:Matched according to following parts by weight composition:
42.5~49 parts of sulphate aluminium cement, 1.5~3 parts of silicon ash, 45~55 parts of sand, composite expanding agent A 0.2~0.5 Part, 2~3 parts of composite expanding agent B, 0.25~0.5 part of water-reducing agent, 0.05~0.15 part of defoamer, stabilizer 0.15~0.25 Part, 0.1~0.3 part of 0.025~0.05 part of compound agent of regulating coagulating A and compound agent of regulating coagulating B;
Step 2: composite expanding agent A is mixed with composite expanding agent B, swelling agent mixt is stirred evenly to obtain;
Step 3: compound agent of regulating coagulating A is mixed with compound agent of regulating coagulating B, adjustable solidification agent mixture is stirred evenly to obtain;
Step 4: by adjustable solidification agent mixture, water-reducing agent made from swelling agent mixt made from step 2, step 3, disappear Infusion and stabilizer mixing, stir;
Step 5: sulphate aluminium cement, silicon ash and sand are mixed, it is stirring evenly and then adding into mixture made from step 4 and fills Divide and stir evenly, mixing time is no less than 10min, then weighs, packs.
The present invention is used for the application method of the quick-hardening sleeve grouting material of bar connecting, by grouting material and water according to 0.12 ~0.13 ratio of water to material is mixed, and is stirred evenly, and mixing time is no less than 4min, and speed of agitator is not less than 60rad/ min。
The present invention is used for the quick-hardening sleeve grouting material of bar connecting compared with prior art, has following beneficial to effect Fruit:
The present invention is used for the quick-hardening sleeve grouting material of bar connecting by selecting the species of each component, and adjustment dosage is matched somebody with somebody Than having used knockdown composite expanding agent and compound agent of regulating coagulating, having coordinated appropriate preparation and application, there is provided a kind of Well, rate of set is fast for slurry stream degree of moving in 30min, and 2-4h hardening strengths are high, are engaged with appropriate plastic expansion rate, can be abundant Meet a kind of quick-hardening sleeve grouting material of safe construction requirement.
Compression strength of the grouting material of the present invention in grouting 2h can reach more than 37MPa, and the compression strength of 4h can reach 44- 56MPa, meets the intensity requirement of safe construction enough, and setting rate is fast, and hardening strength is high, when substantially reducing the wait of construction Between, construction efficiency is improved, shortens whole construction process.
Grouting material of the present invention is up to 0.17% in the grouting 1h plastic expansion rates measured, can the effective compensation slurry plastic stage Contraction, and show positive microdilatancy, so that grouting structure is more closely knit, increase effective carrying of rebar junction Face, guarantee is provided for construction quality.Expansion rate is up to 0.08% after the hardening that grouting 1-2h is measured, it is ensured that in grouting material Preliminary hardening reaches degrees of expansion during construction intensity requirement, and guarantee is provided for the safety of subsequent construction and quality control. The overall expansion rate measured after grouting 24h still has certain microdilatancy after grouting material hardening, can have between 0.15-0.28% Effect ensures effective loading end of grouting material.
Grouting material of the present invention will not ensure the security and durability of grouting entire structure to reinforcing bars rusting; And the quality problems such as grouting material setting time is long, intensity is low are avoided caused by bleeding, have ensured grouting entire structure Early strength and later strength.
Embodiment
The quick-hardening sleeve grouting material that the present invention is used for bar connecting is prepared in accordance with the following methods:
Step 1: stock:Matched according to the parts by weight composition shown in table 1;
Step 2: composite expanding agent A is mixed with composite expanding agent B, swelling agent mixt is stirred evenly to obtain;It is wherein compound Swelling agent A includes neopelex and triterpenoid saponin, and the consumption proportion of neopelex and triterpenoid saponin is 1:3;Wherein composite expanding agent B includes entringite and calcium oxide, and the consumption proportion of entringite and calcium oxide is 1:1;
Step 3: compound agent of regulating coagulating A is mixed with compound agent of regulating coagulating B, adjustable solidification agent mixture is stirred evenly to obtain;It is wherein compound Adjustable solidification agent A includes sodium tetraborate and sodium gluconate, and the consumption proportion of sodium tetraborate and sodium gluconate is 2:1;It is wherein compound Adjustable solidification agent B includes calcium formate and lithium carbonate, and the consumption proportion of calcium formate and lithium carbonate is 1:2;
Step 4: by adjustable solidification agent mixture, water-reducing agent made from swelling agent mixt made from step 2, step 3, disappear Infusion and stabilizer mixing, stir;
Step 5: sulphate aluminium cement, silicon ash and sand are mixed, mixture made from step 4 is stirring evenly and then adding into, Stir, mixing time is no less than 10min, then weighs, packs.
Table 1 prepares the dosage (parts by weight) of each component in embodiment
The grouting material pulvis that above-mentioned preparation embodiment is worth and water are mixed, ratio of water to material 0.13, stir 5min, stir Mix rotating speed is 100rad/min, and after stirring evenly, performance is carried out according to JC/T408-2013 " bar connecting with sleeve grouting material " Indexs measure, the testing result of property indices are as shown in table 2.
Table 2 prepares the performance test structure of grouting material made from embodiment
As shown in Table 2, grouting material made from present invention preparation embodiment has excellent mobile performance, and initial flow degree is high In standard requirement, reach more than 340mm, grouting hollowing phenomenon is can effectively avoid, suitable for the grouting construction of reinforcing bar grout sleeve.
Compression strength of the grouting material of the present invention in grouting 2h can reach more than 37MPa, and the compression strength of 4h can reach 44- 56MPa, meets the intensity requirement of safe construction enough, and setting rate is fast, and hardening strength is high, when substantially reducing the wait of construction Between, construction efficiency is improved, shortens whole construction process.
Grouting material of the present invention is all higher than 0.1% in the grouting 1h plastic expansion rates measured, and up to 0.17%, can effectively it mend The contraction of slurry plastic stage is repaid, and shows positive microdilatancy, so that grouting structure is more closely knit, increases reinforcing bar company Effective loading end at place is connect, guarantee is provided for construction quality.
Grouting material of the present invention after the hardening that measures of grouting 1-2h expansion rate between 0.03-0.08%, it is ensured that filling Slurry tentatively hardening reaches degrees of expansion during construction intensity requirement, and guarantor is provided for the safety of subsequent construction and quality control Barrier.The overall expansion rate measured after the 24h that is in the milk still has certain microdilatancy between 0.15-0.28% after grouting material hardening, It can effectively ensure that effective loading end of grouting material.
The chloride ion content test of grouting material of the present invention is 0, avoids action of rust of the chlorion to reinforcing bar, ensures The security and durability for entire structure of being in the milk.
The bleeding rate test of grouting material of the present invention is 0, avoids grouting material setting time length, intensity caused by bleeding Low quality problems, have ensured the early strength and later strength of grouting entire structure.
Comparative example 1
To prepare embodiment 3 as control group, 6 test groups are set, carry out contrast test.Test group 1-6, removes compound swollen The service condition of swollen dose of A and composite expanding agent B, remaining component and dosage use the recipe ingredient identical with preparing embodiment 3, respectively The service condition of composite expanding agent is as shown in table 3 in test group, then prepares in the same manner, and is mixed with water, then Performance Indexs measure is carried out to grouting material according to JC/T408-2013 " bar connecting with sleeve grouting material ", property indices Testing result is as shown in table 4.
In 3 comparative example 1 of table in each test group swelling agent service condition
The performance test results of grouting material prepared by each test group in 4 comparative example 1 of table
Matching between the compositional selecting, component inside composite expanding agent A and composite expanding agent B, total dosage, with each other Cooperation and proportioning with remaining component in the present invention, all embodied certain advantage, can ensure the plasticity of grouting material Expansion rate, make grouting material in 1h can rapid expanding, make up the early-age shrinkage of grouting material, be engaged with its quick-hardening, it is fast Speed reaches construction requirement, ensures the safety and construction quality of rapid construction.
As shown in Table 4, composite expanding agent A change internal composition proportioning, without using or reduce dosage, it is multiple whether or not using Swelling agent B is closed, such as test group 1-1,1-5 and 1-6, integrally shrinkage phenomenon can be all presented in grouting material, substantially reduce slurry with filling Starch the effective bearing area of barrel contacts so that the bearing capacity of the connection reinforcing bar in grout sleeve is had a greatly reduced quality.Composite expanding agent A Dosage is excessive, and such as test group 1-2,1-3 and 1-4, grouting slurry body is excessive, too fast in the expansion of plastic stage, causes grouting material Intensity after curing substantially reduces, and is unable to reach the normal intensity of building requirements, there are great security risk for construction quality.
As shown in Table 4, composite expanding agent B change internal composition proportioning, without using or reduce dosage, such as test group 1-2,1- 3 and 1-4, grouting slurry body expand excessive, too fast in the plastic stage, but the setting rate of grouting material is far smaller than this hair The bright grouting material, in the 67-72% that the grouting accessible compression strength of 2h is grouting material of the present invention;And form finally hard Change 87% or so that intensity is grouting material of the present invention, be below 85MPa, be unable to reach the normal intensity of building requirements, matter of constructing There are great security risk for amount.When the dosage of composite expanding agent B is more than the amount ranges of the present invention, such as test group 1-5, grouting The setting time of slurry body is short, and 30min fluidities retention cannot reach standard requirement, and expansion rate is excessive causes after hardening Grouting material internal structure is destroyed, and greatly reduces the intensity of grouting material, there are great security risk for construction quality.
As shown in Table 4, if the composite expanding agent that the present invention is substituted using conventional bulking agents is combined, such as test group 1-6, grouting Material is overall to be all presented shrinkage phenomenon, substantially reduce the effective bearing area that slurry is contacted with grout sleeve so that grouting set The bearing capacity of connection reinforcing bar in cylinder is had a greatly reduced quality;The setting rate of grouting material is slack-off at the same time, and be in the milk the accessible pressure resistances of 2h Spend for the 71% of grouting material of the present invention, can not meet construction requirement in the short period of time.
Comparative example 2
To prepare embodiment 3 as control group, 5 test groups are set, carry out contrast test.Test group 1-5, removes compound tune The service condition of solidifying agent A and compound agent of regulating coagulating B, remaining component and dosage use the recipe ingredient identical with preparing embodiment 3, respectively The service condition of compound agent of regulating coagulating is as shown in table 5 in test group, then prepares in the same manner, and is mixed with water, then Performance Indexs measure is carried out to grouting material according to JC/T408-2013 " bar connecting with sleeve grouting material ", property indices Testing result is as shown in table 6.
In 5 comparative example 2 of table in each test group adjustable solidification agent service condition
The performance test results of grouting material prepared by each test group in 6 comparative example 2 of table
Matching between the compositional selecting, component inside compound agent of regulating coagulating A and compound agent of regulating coagulating B, total dosage, with each other Cooperation and proportioning with remaining component in the present invention, all embodied certain advantage, can meet the stream being initially in the milk Dynamic degree, is unlikely to condense too fast, also can reach construction intensity in appropriate time quick-hardening.
As shown in Table 6, compound agent of regulating coagulating A change internal composition proportioning, without using or reduce dosage, such as test group 2-2 and 2-4, the rate of set of slurry body of being in the milk is too fast, the time is short, causes 30min fluidities to be far below 260mm, is unable to reach building and applies Work requirement;The plastic expansion rate of slurry is significantly lower than the present invention at the same time, or even cannot meet standard requirement.Compound agent of regulating coagulating A's When dosage is more than the scope of the present invention, compound agent of regulating coagulating B whether or not using, such as test group 2-1,2-3 and 2-5, be in the milk slurry The rate of setting of body is slow, overlong time, and the grouting accessible compression strength of 2h is grouting material 0-60% of the present invention, can not meet into Row in next step construction intensity requirement, extend grouting waiting period, be unable to reach grouting material of the present invention can quickly carry out it is next Step construction.
As shown in Table 6, compound agent of regulating coagulating B change internal composition proportioning, without using or reduce dosage, such as test group 2-1,2- 3 and 2-5, the rate of setting of slurry body of being in the milk is slow, overlong time, and the grouting accessible compression strength of 2h can not meet to carry out next Walk the intensity requirement of construction.When the dosage of compound agent of regulating coagulating B is higher than requirement of the invention, such as test group 2-2 and 2-4, grouting material The rate of set of slurry is too fast, the time is short, causes 30min fluidities to be far below 260mm, is unable to reach construction requirement;Together When slurry hardening after expansion rate significantly lower than the present invention, or even cannot meet standard requirement.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention The various modifications and improvement that case is made, should all fall into the protection domain that claims of the present invention determines.

Claims (10)

1. the quick-hardening sleeve grouting material for bar connecting, it is characterised in that:Include the component of following parts by weight:
42.5~49 parts of sulphate aluminium cement, 1.5~3 parts of silicon ash, 45~55 parts of sand, 0.2~0.5 part of composite expanding agent A are multiple 2~3 parts of conjunction swelling agent B, 0.25~0.5 part of water-reducing agent, 0.05~0.15 part of defoamer, 0.15~0.25 part of stabilizer are compound 0.025~0.05 part of adjustable solidification agent A and 0.1~0.3 part of compound agent of regulating coagulating B.
2. the quick-hardening sleeve grouting material according to claim 1 for bar connecting, it is characterised in that:The silicon ash Middle SiO2Content be not less than 95%, the specific surface area of silicon ash is not less than 20000m2/kg。
3. the quick-hardening sleeve grouting material according to claim 1 for bar connecting, it is characterised in that:It is described compound Swelling agent A includes neopelex and triterpenoid saponin, and the consumption proportion of neopelex and triterpenoid saponin is 1:3。
4. the quick-hardening sleeve grouting material according to claim 1 for bar connecting, it is characterised in that:It is described compound Swelling agent B includes entringite and calcium oxide, and the consumption proportion of entringite and calcium oxide is 1:1.
5. the quick-hardening sleeve grouting material according to claim 1 for bar connecting, it is characterised in that:The diminishing Agent is polycarboxylate water-reducer, and the defoamer is organic silicon defoamer.
6. the quick-hardening sleeve grouting material according to claim 1 for bar connecting, it is characterised in that:The stabilization Agent is cellulose ether.
7. the quick-hardening sleeve grouting material according to claim 1 for bar connecting, it is characterised in that:It is described compound Adjustable solidification agent A includes sodium tetraborate and sodium gluconate, and the consumption proportion of sodium tetraborate and sodium gluconate is 2:1.
8. the quick-hardening sleeve grouting material according to claim 1 for bar connecting, it is characterised in that:It is described compound Adjustable solidification agent B includes calcium formate and lithium carbonate, and the consumption proportion of calcium formate and lithium carbonate is 1:2.
9. the preparation method of the quick-hardening sleeve grouting material for bar connecting described in claim 1-8 any one, its It is characterized in that:Comprise the following steps:
Step 1: stock:Matched according to following parts by weight composition:
42.5~49 parts of sulphate aluminium cement, 1.5~3 parts of silicon ash, 45~55 parts of sand, 0.2~0.5 part of composite expanding agent A are multiple 2~3 parts of conjunction swelling agent B, 0.25~0.5 part of water-reducing agent, 0.05~0.15 part of defoamer, 0.15~0.25 part of stabilizer are compound 0.025~0.05 part of adjustable solidification agent A and 0.1~0.3 part of compound agent of regulating coagulating B;
Step 2: composite expanding agent A is mixed with composite expanding agent B, swelling agent mixt is stirred evenly to obtain;
Step 3: compound agent of regulating coagulating A is mixed with compound agent of regulating coagulating B, adjustable solidification agent mixture is stirred evenly to obtain;
Step 4: by adjustable solidification agent mixture, water-reducing agent, defoamer made from swelling agent mixt made from step 2, step 3 Mix, stir with stabilizer;
Step 5: sulphate aluminium cement, silicon ash and sand are mixed, mixture made from step 4 is stirring evenly and then adding into, fully Stir evenly, mixing time is no less than 10min, then weighs, packs.
10. the application method of the quick-hardening sleeve grouting material for bar connecting described in claim 9 any one, it is special Sign is:Grouting material is mixed with water according to 0.12~0.13 ratio of water to material, is stirred evenly, mixing time is no less than 4min, speed of agitator are not less than 60rad/min.
CN201711320757.9A 2017-12-12 2017-12-12 Rapid hardening sleeve grouting material for steel bar connection and preparation and use methods thereof Active CN107935517B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101798208A (en) * 2010-02-22 2010-08-11 湖北中桥科技有限公司 High fluidity grouting material and production method thereof
CN103121818A (en) * 2013-02-27 2013-05-29 同济大学 Assembled splicing joint sealing material for building components and application thereof
CN103910511A (en) * 2014-03-13 2014-07-09 东南大学 A superhigh-strength grouting material free from shrinkage in the whole course used for connection of a steel bar and a sleeve
CN105967568A (en) * 2016-05-11 2016-09-28 北京中德新亚建筑技术有限公司 High-strength shrinkage-free sleeve grouting material for rebar connection and preparing method of high-strength shrinkage-free sleeve grouting material
CN106007574A (en) * 2016-05-23 2016-10-12 广西横县恒丰建材有限责任公司 Plastic dual-expansive grouting mortar and production method thereof
CN106830856A (en) * 2017-02-13 2017-06-13 武汉源锦建材科技有限公司 A kind of ungauged regions reinforcing bar sleeve for connection grouting material and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101798208A (en) * 2010-02-22 2010-08-11 湖北中桥科技有限公司 High fluidity grouting material and production method thereof
CN103121818A (en) * 2013-02-27 2013-05-29 同济大学 Assembled splicing joint sealing material for building components and application thereof
CN103910511A (en) * 2014-03-13 2014-07-09 东南大学 A superhigh-strength grouting material free from shrinkage in the whole course used for connection of a steel bar and a sleeve
CN105967568A (en) * 2016-05-11 2016-09-28 北京中德新亚建筑技术有限公司 High-strength shrinkage-free sleeve grouting material for rebar connection and preparing method of high-strength shrinkage-free sleeve grouting material
CN106007574A (en) * 2016-05-23 2016-10-12 广西横县恒丰建材有限责任公司 Plastic dual-expansive grouting mortar and production method thereof
CN106830856A (en) * 2017-02-13 2017-06-13 武汉源锦建材科技有限公司 A kind of ungauged regions reinforcing bar sleeve for connection grouting material and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
朱效荣等主编: "《混凝土工作性调整》", 31 May 2016, 中国建材工业出版社 *

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