CN108046704A - It is a kind of for grouting material of railway bridge bearing and preparation method thereof - Google Patents
It is a kind of for grouting material of railway bridge bearing and preparation method thereof Download PDFInfo
- Publication number
- CN108046704A CN108046704A CN201711394881.XA CN201711394881A CN108046704A CN 108046704 A CN108046704 A CN 108046704A CN 201711394881 A CN201711394881 A CN 201711394881A CN 108046704 A CN108046704 A CN 108046704A
- Authority
- CN
- China
- Prior art keywords
- grouting material
- cement
- water
- railway bridge
- bridge bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000004568 cement Substances 0.000 claims abstract description 34
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 29
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 230000008961 swelling Effects 0.000 claims abstract description 15
- 239000010881 fly ash Substances 0.000 claims abstract description 14
- 239000004576 sand Substances 0.000 claims abstract description 14
- 239000000701 coagulant Substances 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 11
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 11
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 8
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- -1 ferrous aluminate Chemical class 0.000 claims description 4
- 229920000877 Melamine resin Polymers 0.000 claims description 3
- 150000004645 aluminates Chemical class 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 3
- 239000008030 superplasticizer Substances 0.000 claims description 3
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 150000002790 naphthalenes Chemical class 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical group [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims 1
- 230000003467 diminishing effect Effects 0.000 claims 1
- 229920005646 polycarboxylate Polymers 0.000 claims 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-M sulfamate Chemical compound NS([O-])(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-M 0.000 claims 1
- 150000003871 sulfonates Chemical class 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000004567 concrete Substances 0.000 description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000002689 soil Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 229920001732 Lignosulfonate Polymers 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910003978 SiClx Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
- 239000011377 vacuum concrete Substances 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
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
-
- 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)
- Bridges Or Land Bridges (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a kind of for grouting material of railway bridge bearing and preparation method thereof.The grouting material includes following components：Cement, sand, flyash, water-reducing agent, coagulant, swelling agent, antifoaming agent, nano silicon dioxide, mesh polypropylene-fibre.The present invention solves the problems, such as that the grouting preparation method for material of railway bridge bearing in the prior art is complicated, prepares raw material excessively, cost is higher, and the raw materials used in the present invention derives from a wealth of sources, price is low, and preparation method is simple, is suitble to large-scale promotion.
Description
Technical field
The invention belongs to pavement construction material field, more particularly, to a kind of grouting material for railway bridge bearing
And preparation method thereof.
Background technology
Concrete refers to the general designation of the cementing integral engineered composite material of aggregate by cementitious material.That usually says is mixed
One word of solidifying soil refers to make cementitious material, sand, masonry aggregate with cement；Match somebody with somebody by a certain percentage with water (additive and admixture can be contained)
Close, it is agitated obtained by cement concrete, also referred to as normal concrete, it is widely used in civil engineering.
Concrete is divided into inorganic coagulation material concrete by cementitious material and organic cementitious material is mixed there are many sorting technique
Solidifying soil；It is divided into loaded concrete, normal concrete, lightweight concrete by apparent density；It is divided into structural concrete, guarantor by function is used
It is warm concrete, architectural concrete, water-proof concrete, refractory concrete, concrete for hydraulic structure, maritime concrete, road concrete, anti-
Radiate concrete etc.；By construction technology be divided into centrifugal concrete, vacuum concrete, grouted-aggregate concrete, gunite concrete, roll it is mixed
Solidifying soil, extruded concrete, pump concrete etc.；It is divided into plain (i.e. without muscle) concrete, armored concrete, steel wire by reinforcement manner
Cement, fiber concrete, prestressed concrete etc.；It is divided into dry concrete, half dry concrete, plasticity by mixture to mix
Solidifying soil, liquid concrete, high-flowing concrete, chutable concrete etc.；It is divided into flyash concrete by admixture, silicon ash is mixed
Solidifying soil, slag concrete, fiber concrete etc..In addition, concrete can be also divided by compression strength：Low-strength concrete (pressure resistance
Degree is less than 30MPa), (compression strength is more than or equal to for middle strength concrete (compression strength 30-60Mpa) and strong concrete
60MPa)；It can be divided into again by every cubic metre of cement consumption：Lean concrete (cement consumption is no more than 170kg) and fat concrete (water
Mud dosage is not less than 230kg) etc..
To improve some properties of concrete, additive can be added in.There is apparent Technological Economy to imitate due to mixing additive
Fruit, it has become the indispensable component of concrete.For concrete after the workability of improvement concrete mix or hardening
Performance saves cement, levigate mineral material-admixture can be also mixed when concrete stirs.It is divided into active and inactive
Two classes.The property and quantity of admixture, influence intensity, deformation, the heat of hydration, impermeability and color of concrete etc..
The content of the invention
It is an object of the invention to provide the railway bridge bearings that a kind of preparation method is simple, cost of material is low, intensity is high
Grouting material.
To achieve these goals, the first aspect of the present invention provides a kind of grouting material for railway bridge bearing, institute
Stating grouting material includes following components：
Cement, sand, flyash, water-reducing agent, coagulant, swelling agent, antifoaming agent, nano silicon dioxide, polypropylene mesh are fine
Dimension.
As the preferred embodiment of the present invention, wherein, the grouting material includes following components by weight：
20~80 parts of cement, 50~90 parts of sand, 10~20 parts of flyash, 0.2~1 part of water-reducing agent, 0.2~1 part of coagulant,
1~4 part of swelling agent, antifoaming agent 0.05~0.4,1~6 part of nano silicon dioxide, mesh polypropylene-fibre 0~0.2.
As the preferred embodiment of the present invention, wherein, the cement is selected from portland cement, aluminate cement, sulphur aluminium
At least one of acid salt cement, ferrous aluminate cement, fluoroaluminate cement and phosphate cement, the compression strength of the cement
≥32Mpa。
As the preferred embodiment of the present invention, wherein, grain size≤2mm of the sand.
As the preferred embodiment of the present invention, wherein, the fineness of the flyash is 8-24.
As the preferred embodiment of the present invention, wherein, the water-reducing agent is selected from lignin sulfonate water-reducing agent, naphthalene system
The high water-reducing agent of high efficiency water reducing agent class, melamine superplasticizer, Amino-sulfonic Acid-based Water-reducer, fatty acid series and poly-
At least one of carboxylate series high-efficiency water-reducing agent, water-reducing rate >=20% of the water-reducing agent.
As the preferred embodiment of the present invention, wherein, the coagulant is villaumite.
As the preferred embodiment of the present invention, wherein, the swelling agent is entringite class swelling agent.
As the preferred embodiment of the present invention, wherein, grain size≤25nm of the nano silicon dioxide, the polypropylene
The grain size of reticular fibre is 3~5mm.
The second aspect of the present invention provides the preparation method by the grouting material for railway bridge bearing, the preparation
Method includes uniformly mixing each component.
Beneficial effects of the present invention：
The grouting preparation method for material that solves railway bridge bearing in the prior art is complicated, prepares that raw material is excessive, cost is higher
The problem of, the raw materials used in the present invention derives from a wealth of sources, price is low, and preparation method is simple, is suitble to large-scale promotion.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Specific embodiment
The preferred embodiment of the present invention is described in more detail below.Although the following describe being preferably implemented for the present invention
Mode, however, it is to be appreciated that may be realized in various forms the present invention without should be limited by embodiments set forth herein.Phase
Instead, these embodiments are provided so that the present invention is more thorough and complete, and can be by the scope of the present invention intactly
It is communicated to those skilled in the art.
Embodiment 1
A kind of grouting materials of railway bridge bearing of 1000kg are prepared, which includes following components by weight：Water
20 parts of mud, 50 parts of sand, 10 parts of flyash, 0.2 part of water-reducing agent, 0.2 part of coagulant, 1 part of swelling agent, antifoaming agent 0.05, nanometer two
1 part of silica.
Wherein, cement is portland cement, compression strength >=32Mpa of cement.Grain size≤2mm of sand, flyash it is thin
It spends for 8-24.Water-reducing agent be lignin sulfonate water-reducing agent, water-reducing rate >=20% of water-reducing agent.Coagulant is villaumite, expansion
Agent be entringite class swelling agent, grain size≤25nm of nano silicon dioxide.Preparation method is uniformly to mix each component.
Embodiment 2
A kind of grouting materials of railway bridge bearing of 1000kg are prepared, which includes following components by weight：Water
20 parts of mud, 90 parts of sand, 10 parts of flyash, 1 part of water-reducing agent, 0.2 part of coagulant, 4 parts of swelling agent, antifoaming agent 0.05, nano-silica
1 part of SiClx, mesh polypropylene-fibre 0.2.
Wherein, cement is aluminate cement, compression strength >=32Mpa of cement.Grain size≤2mm of sand, flyash it is thin
It spends for 8-24.Water-reducing agent be naphthalene series high-efficiency water-reducing agent class, water-reducing rate >=20% of water-reducing agent.Coagulant is villaumite, and swelling agent is
Entringite class swelling agent, grain size≤25nm of nano silicon dioxide, the grain size of mesh polypropylene-fibre is 3mm.Preparation method is
Each component is uniformly mixed.
Embodiment 3
A kind of grouting materials of railway bridge bearing of 1000kg are prepared, which includes following components by weight：Water
80 parts of mud, 90 parts of sand, 20 parts of flyash, 1 part of water-reducing agent, 1 part of coagulant, 4 parts of swelling agent, antifoaming agent 0.4, nano silicon dioxide
6 parts, 0.2 part of mesh polypropylene-fibre.
Wherein, cement is sulphate aluminium cement, compression strength >=32Mpa of cement.Grain size≤2mm of sand, flyash
Fineness is 8-24.Water-reducing agent is melamine superplasticizer, water-reducing rate >=20% of water-reducing agent.Coagulant is villaumite, swollen
Swollen dose is entringite class swelling agent, and grain size≤25nm of nano silicon dioxide, the grain size of mesh polypropylene-fibre is 5mm.It prepares
Method is uniformly to mix each component.
Various embodiments of the present invention are described above, above description is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.In the case of without departing from the scope and spirit of illustrated each embodiment, for this skill
Many modifications and changes will be apparent from for the those of ordinary skill in art field.
Claims (10)
1. a kind of grouting material for railway bridge bearing, which is characterized in that the grouting material includes following components：
Cement, sand, flyash, water-reducing agent, coagulant, swelling agent, antifoaming agent, nano silicon dioxide, mesh polypropylene-fibre.
2. the grouting material according to claim 1 for railway bridge bearing, wherein, the grouting material is included by weight
Following components：
20~80 parts of cement, 50~90 parts of sand, 10~20 parts of flyash, 0.2~1 part of water-reducing agent, 0.2~1 part of coagulant, expansion
1~4 part of agent, antifoaming agent 0.05~0.4,1~6 part of nano silicon dioxide, mesh polypropylene-fibre 0~0.2.
3. the grouting material according to claim 1 or 2 for railway bridge bearing, wherein, the cement is selected from silicate
At least one in cement, aluminate cement, sulphate aluminium cement, ferrous aluminate cement, fluoroaluminate cement and phosphate cement
Kind, compression strength >=32Mpa of the cement.
4. the grouting material according to claim 1 or 2 for railway bridge bearing, wherein, grain size≤2mm of the sand.
5. the grouting material according to claim 1 or 2 for railway bridge bearing, wherein, the fineness of the flyash is
8-24。
6. the grouting material according to claim 1 or 2 for railway bridge bearing, wherein, the water-reducing agent is selected from wooden
Plain Sulfonates water-reducing agent, naphthalene series high-efficiency water-reducing agent class, melamine superplasticizer, the efficient diminishing of sulfamate system
At least one of agent, the high water-reducing agent of fatty acid series and polycarboxylate high-efficiency water-reducing agent, the water-reducing rate of the water-reducing agent >=
20%.
7. the grouting material according to claim 1 or 2 for railway bridge bearing, wherein, the coagulant is villaumite.
8. the grouting material according to claim 1 or 2 for railway bridge bearing, wherein, the swelling agent is entringite
Class swelling agent.
9. the grouting material according to claim 1 or 2 for railway bridge bearing, wherein, the nano silicon dioxide
Grain size≤25nm, the grain size of the mesh polypropylene-fibre is 3~5mm.
10. the preparation method of the grouting material for railway bridge bearing in claim 1-9 described in any one, feature exist
In the preparation method includes uniformly mixing each component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711394881.XA CN108046704A (en) | 2017-12-21 | 2017-12-21 | It is a kind of for grouting material of railway bridge bearing and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711394881.XA CN108046704A (en) | 2017-12-21 | 2017-12-21 | It is a kind of for grouting material of railway bridge bearing and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108046704A true CN108046704A (en) | 2018-05-18 |
Family
ID=62131261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711394881.XA Pending CN108046704A (en) | 2017-12-21 | 2017-12-21 | It is a kind of for grouting material of railway bridge bearing and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108046704A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108558331A (en) * | 2018-05-31 | 2018-09-21 | 成都磐固土木新材料有限公司 | One kind being used for reinforced masonry wall grouting material |
| CN112408909A (en) * | 2020-11-20 | 2021-02-26 | 江苏扬建集团有限公司 | High-performance sleeve grouting material for prefabricated building and preparation method thereof |
| CN113004012A (en) * | 2021-04-29 | 2021-06-22 | 西京学院 | Anti-cracking and anti-freezing concrete and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351503A (en) * | 2011-07-12 | 2012-02-15 | 安徽中铁工程材料科技有限公司 | High speed railway bridge bearing anchoring mortar material |
-
2017
- 2017-12-21 CN CN201711394881.XA patent/CN108046704A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351503A (en) * | 2011-07-12 | 2012-02-15 | 安徽中铁工程材料科技有限公司 | High speed railway bridge bearing anchoring mortar material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108558331A (en) * | 2018-05-31 | 2018-09-21 | 成都磐固土木新材料有限公司 | One kind being used for reinforced masonry wall grouting material |
| CN112408909A (en) * | 2020-11-20 | 2021-02-26 | 江苏扬建集团有限公司 | High-performance sleeve grouting material for prefabricated building and preparation method thereof |
| CN113004012A (en) * | 2021-04-29 | 2021-06-22 | 西京学院 | Anti-cracking and anti-freezing concrete and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180518 |
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| RJ01 | Rejection of invention patent application after publication |