CN110015871A - A kind of anti-corrosion reinforcing bar sleeve for connection grouting material and preparation method thereof - Google Patents
A kind of anti-corrosion reinforcing bar sleeve for connection grouting material and preparation method thereof Download PDFInfo
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- CN110015871A CN110015871A CN201910378250.1A CN201910378250A CN110015871A CN 110015871 A CN110015871 A CN 110015871A CN 201910378250 A CN201910378250 A CN 201910378250A CN 110015871 A CN110015871 A CN 110015871A
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- cementitious material
- grouting material
- reinforcing bar
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- 239000000463 material Substances 0.000 title claims abstract description 84
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 25
- 238000005260 corrosion Methods 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 23
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims abstract description 20
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 claims abstract description 10
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000002421 anti-septic effect Effects 0.000 claims abstract description 10
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 claims abstract description 10
- 239000011521 glass Substances 0.000 claims abstract description 10
- 239000000176 sodium gluconate Substances 0.000 claims abstract description 10
- 229940005574 sodium gluconate Drugs 0.000 claims abstract description 10
- 235000012207 sodium gluconate Nutrition 0.000 claims abstract description 10
- 235000010288 sodium nitrite Nutrition 0.000 claims abstract description 10
- 235000002906 tartaric acid Nutrition 0.000 claims abstract description 10
- 239000011975 tartaric acid Substances 0.000 claims abstract description 10
- 239000000230 xanthan gum Substances 0.000 claims abstract description 10
- 229920001285 xanthan gum Polymers 0.000 claims abstract description 10
- 229940082509 xanthan gum Drugs 0.000 claims abstract description 10
- 235000010493 xanthan gum Nutrition 0.000 claims abstract description 10
- 239000004615 ingredient Substances 0.000 claims abstract description 6
- RAFRTSDUWORDLA-UHFFFAOYSA-N phenyl 3-chloropropanoate Chemical compound ClCCC(=O)OC1=CC=CC=C1 RAFRTSDUWORDLA-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000002518 antifoaming agent Substances 0.000 claims description 9
- 239000003638 chemical reducing agent Substances 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 9
- 230000008961 swelling Effects 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 6
- 239000008267 milk Substances 0.000 claims description 4
- 210000004080 milk Anatomy 0.000 claims description 4
- 235000013336 milk Nutrition 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses a kind of anti-corrosion reinforcing bar sleeve for connection material fillings and preparation method thereof, including conventional sleeve grouting material, further include the early strong modified component of following components (1), account for the 3%~8% of cementitious material parts by weight；(2) antiseptic ingredient: disodium hydrogen phosphate, the 0.1%~0.2% of cementitious material；Sodium nitrite or calcium nitrite, the 2%~4% of cementitious material；20~40 mesh rubber powders, the 5%~10% of fine aggregate；40~70 mesh glass powders, the 8%~20% of fine aggregate；(3) slow setting water-retaining component: sodium gluconate, the 0.01%~0.03% of cementitious material；Tartaric acid, the 0.002%~0.02% of cementitious material；Xanthan gum: the 0.01%~0.03% of cementitious material.The present invention improves the antiseptic property of grouting material on the basis of meeting conventional rebar sleeve grouting material with strong modified component early and slow setting water-retaining component by the way that antiseptic ingredient is added in conventional sleeve grouting material.
Description
Technical field
The invention belongs to building material technical field, in particular to a kind of anti-corrosion reinforcing bar sleeve for connection grouting material and its system
Preparation Method, suitable for the assembly concrete engineering construction under corrosive environment.
Background technique
Assembled architecture is the trend of future architecture industry development, and the connection between cast in place and precast construction reinforcing bar is to guarantee
The key of power transmission and integrality performance of the structure between reinforcing bar, currently, connecting method for reinforcing bars mainly include reinforcing bar slurry anchor overlap joint connection and
Reinforced bar sleeve grouting connection.Wherein, sleeve is in the milk connection type due to not by bar diameter size, load classification and height of house
Limitation, the scope of application is wider.
As one of the key technique of reinforced bar sleeve grouting connection, sleeve grouting material must satisfy mechanical property, work
All various strict demands such as property, volume stability, durability.
And the Cl in China's Coastal Areas, underground water-、SO4 2-、Mg2+Ion concentration all exceed normal concentration range, cause
Make concrete steel building throughout the year by corrosion failure, equally, reinforced bar sleeve grouting material also can be rotten under the corrosive environment
Erosion, to influence its durability.
But if anti-corrosion material only is added in conventional grout material, although antiseptic property increases, reduce filling
The intensity of slurry shortens fluidity retention time, therefore, it is necessary to make while increasing antiseptic property, and does not influence
The sleeve grouting material of intensity and workability.
Summary of the invention
For the technical problems in the prior art, the present invention provide a kind of anti-corrosion reinforcing bar sleeve for connection grouting material and
Preparation method.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of anti-corrosion reinforcing bar sleeve for connection grouting material, including conventional sleeve grouting material, further include following components
(1) early strong modified component, accounts for the 3%~8% of cementitious material parts by weight；
(2) antiseptic ingredient
Disodium hydrogen phosphate, the 0.1%~0.2% of cementitious material；
Sodium nitrite or calcium nitrite, the 2%~4% of cementitious material；
20~40 mesh rubber powders, the 5%~10% of fine aggregate；
40~70 mesh glass powders, the 8%~20% of fine aggregate；
(3) slow setting water-retaining component
Sodium gluconate, the 0.01%~0.03% of cementitious material；
Tartaric acid, the 0.002%~0.02% of cementitious material；
Xanthan gum: the 0.01%~0.03% of cementitious material.
Preferably, the physicochemical analysis result of the morning strong modified component is as follows:
Preferably, each component content is as follows with parts by weight in the conventional sleeve grouting material:
85~100 parts of cementitious material；
85~100 parts of fine aggregate；
0.3~0.8 part of water-reducing agent；
0.05~0.2 part of defoaming agent；
0.03~0.1 part of plastic expansion agent；
Common 3~8 parts of swelling agent；
0.01~0.2 part of retarder.
Preferably, each component content is as follows with parts by weight in the Corrosion Interception Sleeve grouting material:
85~100 parts of cementitious material；
85~100 parts of fine aggregate；
0.3~0.8 part of water-reducing agent；
0.05~0.2 part of defoaming agent；
0.03~0.1 part of plastic expansion agent；
Common 3~8 parts of swelling agent；
0~0.1 part of retarder；
Early strong modified 2.55~8 parts of component；
0.085~0.2 part of disodium hydrogen phosphate；
1.7~4 parts of sodium nitrite；
20~40 2.55~8 parts of mesh rubber powders；
40~70 4.25~10 parts of mesh glass powders；
0.0085~0.03 part of sodium gluconate；
0.0017~0.02 part of tartaric acid；
0.0085~0.03 part of xanthan gum.
The invention also discloses a kind of preparation method of anti-corrosion reinforcing bar sleeve for connection grouting material, include the following steps: by
Ratio weighs raw material, then stirs evenly raw material, and is mixed with the ratio that ratio of water to material is 0.12~0.14 with water, finally
It is mixed 10 minutes using forced stirrer, i.e., with being in the milk on site.
Compared with prior art, the present invention has the beneficial effects that the present invention passes through in conventional sleeve grouting material
Addition antiseptic ingredient is with strong modified component early and slow setting water-retaining component, on the basis of meeting conventional rebar sleeve grouting material,
Improve the antiseptic property of grouting material.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, combined with specific embodiments below to this hair
It is bright to elaborate.
Embodiment of the invention discloses a kind of anti-corrosion reinforcing bar sleeve for connection grouting material, including conventional sleeve grouting material and
Following components
(1) early strong modified component, accounts for the 3%~8% of cementitious material parts by weight；
(2) antiseptic ingredient
Disodium hydrogen phosphate, the 0.1%~0.2% of cementitious material；
Sodium nitrite or calcium nitrite, the 2%~4% of cementitious material；
20~40 mesh rubber powders, the 5%~10% of fine aggregate；
40~70 mesh glass powders, the 8%~20% of fine aggregate；
(3) slow setting water-retaining component
Sodium gluconate, the 0.01%~0.03% of cementitious material；
Tartaric acid, the 0.002%~0.02% of cementitious material；
Xanthan gum: the 0.01%~0.03% of cementitious material.
The physicochemical analysis result of early strong modified component is as follows:
| SiO2, % | Al2O3, % | Cl-, % | Total alkali content, % | Specific surface area, m2/g |
| 54.7 | 40.2 | 0.0037 | 0.32 | 15.1 |
In the present embodiment, each component content is as follows with parts by weight in conventional sleeve grouting material:
85~100 parts of cementitious material；
85~100 parts of fine aggregate；
0.3~0.8 part of water-reducing agent；
0.05~0.2 part of defoaming agent；
0.03~0.1 part of plastic expansion agent；
Common 3~8 parts of swelling agent；
0.01~0.2 part of retarder.
In conjunction with a kind of anti-corrosion reinforcing bar sleeve for connection grouting material provided in the present invention after conventional sleeve grouting material, each component
Content is as follows with parts by weight:
85~100 parts of cementitious material；
85~100 parts of fine aggregate；
0.3~0.8 part of water-reducing agent；
0.05~0.2 part of defoaming agent；
0.03~0.1 part of plastic expansion agent；
Common 3~8 parts of swelling agent；
0~0.1 part of retarder；
Early strong modified 2.55~8 parts of component；
0.085~0.2 part of disodium hydrogen phosphate；
1.7~4 parts of sodium nitrite；
20~40 2.55~8 parts of mesh rubber powders；
40~70 4.25~10 parts of mesh glass powders；
0.0085~0.03 part of sodium gluconate；
0.0017~0.02 part of tartaric acid；
0.0085~0.03 part of xanthan gum.
Embodiment one
90 parts of cementitious material；
90 parts of fine aggregate；
0.5 part of water-reducing agent；
0.1 part of defoaming agent；
0.04 part of plastic expansion agent；
Common 4 parts of swelling agent；
Early strong modified 5 parts of component；
0.09 part of disodium hydrogen phosphate；
1.8 parts of sodium nitrite；
20~40 4.5 parts of mesh rubber powders；
40~70 9 parts of mesh glass powders；
0.018 part of sodium gluconate；
0.009 part of tartaric acid；
0.027 part of xanthan gum.
Above-mentioned material is uniformly mixed and obtains anti-corrosion reinforcing bar sleeve for connection grouting material dry powder, the ratio for being 0.13 with ratio of water to material
Example is mixed with water, is mixed 10 minutes using forced stirrer, that is, anti-corrosion reinforcing bar sleeve for connection grouting material is made.
Embodiment two
100 parts of cementitious material；
100 parts of fine aggregate；
0.7 part of water-reducing agent；
0.12 part of defoaming agent；
0.05 part of plastic expansion agent；
Common 5 parts of swelling agent；
Early strong modified 5 parts of component；
0.1 part of disodium hydrogen phosphate；
2 parts of sodium nitrite；
20~40 4 parts of mesh rubber powders；
40~70 8 parts of mesh glass powders；
0.02 part of sodium gluconate；
0.01 part of tartaric acid；
0.02 part of xanthan gum.
Above-mentioned material is uniformly mixed and obtains anti-corrosion reinforcing bar sleeve for connection grouting material dry powder, the ratio for being 0.12 with ratio of water to material
Example is mixed with water, is mixed 10 minutes using forced stirrer, that is, anti-corrosion reinforcing bar sleeve for connection grouting material is made.
Embodiment three
85 parts of cementitious material；
85 parts of fine aggregate；
0.43 part of water-reducing agent；
0.08 part of defoaming agent；
0.03 part of plastic expansion agent；
Common 4 parts of swelling agent；
Early strong modified 3.5 parts of component；
0.09 part of disodium hydrogen phosphate；
1.7 parts of sodium nitrite；
20~40 5 parts of mesh rubber powders；
40~70 6 parts of mesh glass powders；
0.012 part of sodium gluconate；
0.006 part of tartaric acid；
0.02 part of xanthan gum.
Above-mentioned material is uniformly mixed and obtains anti-corrosion reinforcing bar sleeve for connection grouting material dry powder, the ratio for being 0.14 with ratio of water to material
Example is mixed with water, is mixed 10 minutes using forced stirrer, that is, anti-corrosion reinforcing bar sleeve for connection grouting material is made.
Grouting material obtained is tested for the property, specific test data see the table below:
The invention also discloses a kind of preparation method of anti-corrosion reinforcing bar sleeve for connection grouting material, include the following steps: by
Ratio weighs raw material, then stirs evenly raw material, and is mixed with the ratio that ratio of water to material is 0.12~0.14 with water, finally
It is mixed 10 minutes using forced stirrer, i.e., with being in the milk on site.
Above embodiments are only exemplary embodiment of the present invention, are not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can within the spirit and scope of the present invention make respectively the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (5)
1. a kind of anti-corrosion reinforcing bar sleeve for connection grouting material, including conventional sleeve grouting material, which is characterized in that further include with the following group
Point
(1) early strong modified component, accounts for the 3%~8% of cementitious material parts by weight；
(2) antiseptic ingredient
Disodium hydrogen phosphate, the 0.1%~0.2% of cementitious material；
Sodium nitrite or calcium nitrite, the 2%~4% of cementitious material；
20~40 mesh rubber powders, the 5%~10% of fine aggregate；
40~70 mesh glass powders, the 8%~20% of fine aggregate；
(3) slow setting water-retaining component
Sodium gluconate, the 0.01%~0.03% of cementitious material；
Tartaric acid, the 0.002%~0.02% of cementitious material；
Xanthan gum: the 0.01%~0.03% of cementitious material.
2. a kind of anti-corrosion reinforcing bar sleeve for connection grouting material according to claim 1, which is characterized in that the morning is modified by force
The physicochemical analysis result of component is as follows:
3. a kind of anti-corrosion reinforcing bar sleeve for connection grouting material according to claim 1, which is characterized in that the conventional sleeve
Each component content is as follows with parts by weight in grouting material:
85~100 parts of cementitious material；
85~100 parts of fine aggregate；
0.3~0.8 part of water-reducing agent；
0.05~0.2 part of defoaming agent；
0.03~0.1 part of plastic expansion agent；
Common 3~8 parts of swelling agent；
0.01~0.2 part of retarder.
4. a kind of anti-corrosion reinforcing bar sleeve for connection grouting material according to claim 1, which is characterized in that each component content with
Parts by weight are as follows:
85~100 parts of cementitious material；
85~100 parts of fine aggregate；
0.3~0.8 part of water-reducing agent；
0.05~0.2 part of defoaming agent；
0.03~0.1 part of plastic expansion agent；
Common 3~8 parts of swelling agent；
0~0.1 part of retarder；
Early strong modified 2.55~8 parts of component；
0.085~0.2 part of disodium hydrogen phosphate；
1.7~4 parts of sodium nitrite；
20~40 2.55~8 parts of mesh rubber powders；
40~70 4.25~10 parts of mesh glass powders；
0.0085~0.03 part of sodium gluconate；
0.0017~0.02 part of tartaric acid；
0.0085~0.03 part of xanthan gum.
5. a kind of preparation method of anti-corrosion reinforcing bar sleeve for connection grouting material according to any one of claims 1 to 4, special
Sign is, includes the following steps: to weigh raw material in proportion, then stirs evenly raw material, and with ratio of water to material be 0.12~
0.14 ratio is mixed with water, is finally mixed 10 minutes using forced stirrer, i.e., with being in the milk on site.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910378250.1A CN110015871A (en) | 2019-05-08 | 2019-05-08 | A kind of anti-corrosion reinforcing bar sleeve for connection grouting material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910378250.1A CN110015871A (en) | 2019-05-08 | 2019-05-08 | A kind of anti-corrosion reinforcing bar sleeve for connection grouting material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110015871A true CN110015871A (en) | 2019-07-16 |
Family
ID=67193315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910378250.1A Pending CN110015871A (en) | 2019-05-08 | 2019-05-08 | A kind of anti-corrosion reinforcing bar sleeve for connection grouting material and preparation method thereof |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12319618B2 (en) | 2020-07-10 | 2025-06-03 | Qingdao university of technology | Anti-corrosive concrete grouting material for coastal structure connection and method for preparing the same |
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| CN102180628A (en) * | 2011-03-02 | 2011-09-14 | 中国科学院武汉岩土力学研究所 | High-strength micro-expansion prestress anchoring grouting material and preparation method thereof |
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-
2019
- 2019-05-08 CN CN201910378250.1A patent/CN110015871A/en active Pending
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| CN103193414A (en) * | 2013-03-08 | 2013-07-10 | 蒋成飞 | Post-tensioning prestressed concrete beam pore high-strength grouting agent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12319618B2 (en) | 2020-07-10 | 2025-06-03 | Qingdao university of technology | Anti-corrosive concrete grouting material for coastal structure connection and method for preparing the same |
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