CN115504745A - Ultra-high performance premix for assembly type building wet joint - Google Patents
Ultra-high performance premix for assembly type building wet joint Download PDFInfo
- Publication number
- CN115504745A CN115504745A CN202211372758.9A CN202211372758A CN115504745A CN 115504745 A CN115504745 A CN 115504745A CN 202211372758 A CN202211372758 A CN 202211372758A CN 115504745 A CN115504745 A CN 115504745A
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- China
- Prior art keywords
- parts
- component
- premix
- assembly type
- cement
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- 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.)
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Links
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- 239000004568 cement Substances 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 14
- 239000011324 bead Substances 0.000 claims abstract description 12
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 12
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 12
- 239000011707 mineral Substances 0.000 claims abstract description 12
- 230000003487 anti-permeability effect Effects 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000011398 Portland cement Substances 0.000 claims abstract description 4
- 239000004567 concrete Substances 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 9
- 230000035699 permeability Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005536 corrosion prevention Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention relates to the technical field of assembly type building wet joints, and discloses an ultrahigh-performance premix for assembly type building wet joints, which comprises a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 220-420 parts of cement, 200-600 parts of aggregate, 150-300 parts of ground mineral powder, 60-120 parts of floating beads, 1-20 parts of nano anti-permeability agent, 1-3 parts of water reducing agent and 1-5 parts of water-retaining agent, wherein the component B comprises 50-220 parts of copper-plated steel fiber, and the cement is 52.5 ordinary portland cement. The ultrahigh-performance premix for the wet joint of the assembly type building is a material designed according to a tight stacking theory, has ultrahigh strength, high toughness, low permeability and high volume stability, solves the problems that the common concrete for the wet joint of the assembly type building is low in bonding force, low in strength, poor in volume stability, seriously insufficient in durability and the like, and meets the higher requirement of the modern assembly type building on the wet joint material.
Description
Technical Field
The invention relates to the technical field of assembly type building wet joints, in particular to an ultrahigh-performance premix for assembly type building wet joints.
Background
The assembly type building is a building which is formed by transferring a large amount of field operation work in the traditional building mode to a factory, processing and manufacturing building components and accessories in the factory, transporting the building components and accessories to a building construction site, assembling and installing the components and the accessories in the site in a reliable connection mode, wherein wet joints refer to joints which are formed by prefabricating prestressed concrete beam bodies in blocks, splicing cantilevers into long-span continuous beams, and connecting the beam blocks into a whole by adopting cast-in-place concrete among the beam bodies.
Taking bridge engineering as an example, the wet joint has the defects of more longitudinal cracks, sunken bridge deck, failure of the wet joint, fracture of the joint part and the like, and the traditional method adopts a common concrete wet joint to reinforce the damaged wet joint, so that the following problems still exist: firstly, the bonding effect of the joints of the new and old concrete is poor, so that the reinforcing efficiency is low, and the reinforcing period is long; secondly, the durability cannot be ensured, and corrosion prevention, reinforcement and maintenance are needed; thirdly, the construction process is complicated, the material waste is serious, and in addition, more and more modern assembly type buildings provide higher challenges for wet joint materials.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the ultra-high performance premix for the wet joint of the fabricated building, which has the advantages of convenient use, outstanding performance and excellent durability, and solves the following problems that the traditional method adopts a common concrete wet joint to reinforce the damaged wet joint and still has the following problems: firstly, the bonding effect of the joints of the new concrete and the old concrete is poor, so that the reinforcing efficiency is low, and the reinforcing period is long; secondly, the durability cannot be ensured, and corrosion prevention, reinforcement and maintenance are needed; thirdly, the construction process is complicated and the material waste is serious.
(II) technical scheme
In order to achieve the purposes of convenient use, outstanding performance and excellent durability, the invention provides the following technical scheme: the ultra-high performance premix for the wet joint of the fabricated building comprises a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 220-420 parts of cement, 200-600 parts of aggregate, 150-300 parts of ground mineral powder, 60-120 parts of floating beads, 1-20 parts of nano anti-permeability agent, 1-3 parts of water reducing agent and 1-5 parts of water-retaining agent, wherein the component B comprises 50-220 parts of copper-plated steel fiber.
Preferably, the cement is 52.5 Portland cement.
Preferably, the aggregate is
Grading high-strength aggregate.
Preferably, the component A is powder, the component B is copper-plated steel fiber, and the components are uniformly mixed according to the mass ratio of A to B to water =100 to 20 to 9 when the copper-plated steel fiber is used.
(III) advantageous effects
Compared with the prior art, the invention provides the ultrahigh-performance premix for the wet joint of the fabricated building, which has the following beneficial effects:
the ultrahigh-performance premix for the wet joints of the assembly type buildings is made of materials designed according to the tight stacking theory, has ultrahigh strength, high toughness, low permeability and high volume stability, solves the problems that the common concrete for the wet joints of the assembly type buildings is low in bonding force, low in strength, poor in volume stability, seriously insufficient in durability and the like, and meets the requirement of modern assembly type buildings on higher wet joint materials.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The first embodiment is as follows: the ultrahigh-performance premix for the wet joint of the fabricated building comprises the following raw materials in parts by weight: 350 parts of cement, 400 parts of aggregate, 180 parts of ground mineral powder, 60 parts of floating beads, 5.5 parts of nano anti-permeability agent, 1.5 parts of water reducing agent and 3 parts of water-retaining agent, wherein the component B comprises 200 parts of copper-plated steel fiber.
The product detection results are shown in table 1;
example two: the ultra-high performance premix for the wet joint of the prefabricated building comprises the following raw materials in parts by weight: 300 parts of cement, 450 parts of aggregate, 180 parts of ground mineral powder, 60 parts of floating beads, 4.5 parts of nano anti-permeability agent, 1.5 parts of water reducing agent and 4 parts of water-retaining agent, wherein the component B comprises 200 parts of copper-plated steel fiber.
The product detection results are shown in table 1;
example three: the ultrahigh-performance premix for the wet joint of the fabricated building comprises the following raw materials in parts by weight: 300 parts of cement, 400 parts of aggregate, 230 parts of ground mineral powder, 61 parts of floating beads, 3.5 parts of nano anti-permeability agent, 1.5 parts of water reducing agent and 4 parts of water-retaining agent, wherein the component B comprises 200 parts of copper-plated steel fiber.
The product detection results are shown in table 1;
experimental example four: the ultra-high performance premix for the wet joint of the prefabricated building comprises the following raw materials in parts by weight: 325 parts of cement, 400 parts of aggregate, 205 parts of ground mineral powder, 60 parts of floating beads, 4.5 parts of nano anti-permeability agent, 1.5 parts of water reducing agent and 4 parts of water-retaining agent, wherein the component B comprises 200 parts of copper-plated steel fiber.
The product detection results are shown in table 1;
in the above four embodiments:
the cement is 52.5 ordinary portland cement, and the aggregate is
The graded high-strength aggregate is prepared by uniformly mixing A component, B component and B component according to the mass ratio of A to B to water =100 to 20 to 9.
The ultrahigh-performance premix for the assembly type building wet joint is prepared by compounding graded high-strength aggregate with the maximum grain diameter of less than or equal to 4.75mm, active ground mineral micro powder, floating beads, an F10 high-efficiency water reducing agent, a water-retaining agent, copper-plated steel fibers and the like, so that the 3d compressive strength of the premix is more than or equal to 60MPa, the 7d compressive strength is more than or equal to 90MPa, the 28d compressive strength is more than or equal to 150MPa, and the 28d compressive strength is more than or equal to 26MPa.
TABLE 1 test results of products
The beneficial effects of the invention are:
the material designed according to the theory of compact stacking of the cement concrete has ultrahigh strength, high toughness, low permeability and high volume stability, solves the problems of low binding power, low strength, poor volume stability, serious and insufficient durability and the like of the common concrete for the wet joint of the assembly type building, and meets the higher requirement of the modern assembly type building on the wet joint material.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The ultra-high performance premix for the assembly type building wet joint is characterized by comprising a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 220-420 parts of cement, 200-600 parts of aggregate, 150-300 parts of ground mineral powder, 60-120 parts of floating beads, 1-20 parts of nano anti-permeability agent, 1-3 parts of water reducing agent and 1-5 parts of water-retaining agent, wherein the component B comprises 50-220 parts of copper-plated steel fiber.
2. The ultra-high performance premix for assembly type building wet joints according to claim 1, wherein the cement is 52.5 portland cement.
3. The ultra-high performance premix for assembly building wet joints according to claim 1, wherein the aggregate is
Grading high-strength aggregate.
4. The ultra-high performance premix for the wet joints of prefabricated buildings according to claim 1, wherein the component A is powder, the component B is copper-plated steel fibers, and the components are uniformly mixed in a mass ratio of A to B to water =100 to 20 to 9 before use.
5. The ultra-high performance premix for the wet joint of the fabricated building according to claim 1, which comprises the following raw materials in parts by weight: 350 parts of cement, 400 parts of aggregate, 180 parts of ground mineral powder, 60 parts of floating beads, 5.5 parts of nano anti-permeability agent, 1.5 parts of water reducing agent and 3 parts of water-retaining agent, wherein the component B comprises 200 parts of copper-plated steel fiber.
6. The ultra-high performance premix for the wet joint of the fabricated building according to claim 1, which comprises the following raw materials in parts by weight: 300 parts of cement, 450 parts of aggregate, 180 parts of ground mineral powder, 60 parts of floating beads, 4.5 parts of nano anti-permeability agent, 1.5 parts of water reducing agent and 4 parts of water-retaining agent, wherein the component B comprises 200 parts of copper-plated steel fiber.
7. The ultra-high performance premix for the wet joints of the prefabricated buildings according to claim 1, characterized by comprising the following raw materials in parts by weight: 300 parts of cement, 400 parts of aggregate, 230 parts of ground mineral powder, 61 parts of floating beads, 3.5 parts of nano anti-permeability agent, 1.5 parts of water reducing agent and 4 parts of water-retaining agent, wherein the component B comprises 200 parts of copper-plated steel fiber.
8. The ultra-high performance premix for the wet joint of the fabricated building according to claim 1, which comprises the following raw materials in parts by weight: 325 parts of cement, 400 parts of aggregate, 205 parts of ground mineral powder, 60 parts of floating beads, 4.5 parts of nano anti-permeability agent, 1.5 parts of water reducing agent and 4 parts of water-retaining agent, wherein the component B comprises 200 parts of copper-plated steel fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211372758.9A CN115504745A (en) | 2022-11-01 | 2022-11-01 | Ultra-high performance premix for assembly type building wet joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211372758.9A CN115504745A (en) | 2022-11-01 | 2022-11-01 | Ultra-high performance premix for assembly type building wet joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115504745A true CN115504745A (en) | 2022-12-23 |
Family
ID=84512825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211372758.9A Pending CN115504745A (en) | 2022-11-01 | 2022-11-01 | Ultra-high performance premix for assembly type building wet joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115504745A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106348677A (en) * | 2016-08-17 | 2017-01-25 | 中交第二航务工程局有限公司 | Ultrahigh-performance concrete and preparation method and application thereof |
| CN107337405A (en) * | 2017-06-30 | 2017-11-10 | 武汉理工大学 | A kind of high-performance for wet seam expands hybrid fiber concrete material and preparation method thereof |
| CN108191351A (en) * | 2018-03-08 | 2018-06-22 | 同济大学 | A kind of ultra-high performance concrete for mixing assorted fibre |
| CN109206095A (en) * | 2018-11-06 | 2019-01-15 | 宁波市高等级公路建设指挥部 | Microdilatancy ultra-high performance concrete and preparation method thereof |
| CN110510950A (en) * | 2019-09-11 | 2019-11-29 | 青岛金磐石新型建材有限公司 | A kind of frost thawing resistance concrete mix and preparation method thereof |
| CN111302733A (en) * | 2020-03-13 | 2020-06-19 | 中铁大桥科学研究院有限公司 | Low-shrinkage creep wet joint ultra-high-strength concrete material and preparation method thereof |
| CN112341140A (en) * | 2020-11-10 | 2021-02-09 | 安徽瑞和新材料有限公司 | Assembled building wet joint concrete interface agent and preparation method thereof |
| US20220112131A1 (en) * | 2019-12-30 | 2022-04-14 | Qingdao university of technology | Lightweight aggregate ultra-high performance concrete (uhpc) and preparation method thereof |
-
2022
- 2022-11-01 CN CN202211372758.9A patent/CN115504745A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106348677A (en) * | 2016-08-17 | 2017-01-25 | 中交第二航务工程局有限公司 | Ultrahigh-performance concrete and preparation method and application thereof |
| CN107337405A (en) * | 2017-06-30 | 2017-11-10 | 武汉理工大学 | A kind of high-performance for wet seam expands hybrid fiber concrete material and preparation method thereof |
| CN108191351A (en) * | 2018-03-08 | 2018-06-22 | 同济大学 | A kind of ultra-high performance concrete for mixing assorted fibre |
| CN109206095A (en) * | 2018-11-06 | 2019-01-15 | 宁波市高等级公路建设指挥部 | Microdilatancy ultra-high performance concrete and preparation method thereof |
| CN110510950A (en) * | 2019-09-11 | 2019-11-29 | 青岛金磐石新型建材有限公司 | A kind of frost thawing resistance concrete mix and preparation method thereof |
| US20220112131A1 (en) * | 2019-12-30 | 2022-04-14 | Qingdao university of technology | Lightweight aggregate ultra-high performance concrete (uhpc) and preparation method thereof |
| CN111302733A (en) * | 2020-03-13 | 2020-06-19 | 中铁大桥科学研究院有限公司 | Low-shrinkage creep wet joint ultra-high-strength concrete material and preparation method thereof |
| CN112341140A (en) * | 2020-11-10 | 2021-02-09 | 安徽瑞和新材料有限公司 | Assembled building wet joint concrete interface agent and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 辽宁省土木建筑学会，建筑经济学术委员会: "《建筑与预算知识手册 词汇篇》", 辽宁科学技术出版社, pages: 85 * |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20221223 |
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| RJ01 | Rejection of invention patent application after publication |