CN112982807A - Light-weight bubble concrete structure with built-in reinforcing ribs and preparation method thereof - Google Patents
Light-weight bubble concrete structure with built-in reinforcing ribs and preparation method thereof Download PDFInfo
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- CN112982807A CN112982807A CN202110255137.1A CN202110255137A CN112982807A CN 112982807 A CN112982807 A CN 112982807A CN 202110255137 A CN202110255137 A CN 202110255137A CN 112982807 A CN112982807 A CN 112982807A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
- E04C1/40—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
- E04C1/41—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts composed of insulating material and load-bearing concrete, stone or stone-like material
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- 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
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- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
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- Curing Cements, Concrete, And Artificial Stone (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention discloses a light-weight bubble concrete structure with built-in reinforcing ribs, which comprises a bubble concrete lower base layer, a bubble concrete bearing layer, a bubble concrete upper base layer and a steel fiber bundle, wherein the upper surface of the bubble concrete lower base layer is fixedly provided with the bubble concrete bearing layer, the upper surface of the bubble concrete bearing layer is fixedly provided with the bubble concrete upper base layer, and the steel fiber bundle is embedded in the bubble concrete bearing layer. This light bubble concrete structure of built-in strengthening rib through adding steel fibre in to the concrete tied in a bundle for the inside stress that can bear of concrete increases, replaces reinforced concrete structure through adding steel fibre tied in a bundle, makes the concrete can realize pouring in advance and do not influence the intensity of concrete, and the mode through adding rust inhibitor and air entraining agent makes the steel fibre in the concrete can not corrode and the bubble distributes evenly simultaneously, has promoted the stability of concrete strengthening rib structure.
Description
Technical Field
The invention relates to the technical field of concrete preparation, in particular to a light-weight bubble concrete structure with a built-in reinforcing rib and a preparation method thereof.
Background
The concrete is a building material with the largest current use amount formed by mixing materials in a certain proportion, and along with the development of the domestic construction industry, the high requirements are also put forward on the functionality of the concrete, the air bubble concrete is novel concrete which fully mixes foam and cement paste and carries out cast-in-place or abrasive tool forming through pumping, the air bubble concrete has the advantages of light weight, heat preservation, heat insulation, fire resistance, sound insulation, freezing resistance and the like, but the existing air bubble concrete has some problems:
the existing bubble concrete is brittle after being formed due to the fact that a large number of bubbles exist in the existing bubble concrete due to functional requirements such as heat insulation, fire resistance and sound insulation, and the like, and cannot bear overlarge pressure, so that the application range of the bubble concrete is only limited in some light buildings, the wide application of the bubble concrete is not facilitated, reinforcing ribs in the concrete are mostly arranged to be reinforcing steel bars, the traditional reinforcing steel bars can be seriously corroded after being used for a long time, the reinforcing effect of the reinforcing steel bars on the concrete is weakened, the reinforcing steel bars can be cracked even in serious cases, and very serious potential safety hazards exist.
In order to solve the problems, innovative design is urgently needed on the basis of the original concrete structure.
Disclosure of Invention
The invention aims to provide a light-weight cellular concrete structure with built-in reinforcing ribs and a preparation method thereof, and aims to solve the problem that the existing cellular concrete provided by the background art is insufficient in strength.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a light bubble concrete structure of built-in strengthening rib, includes that bubble concrete is basic unit, bubble concrete bearing layer, bubble concrete upper base layer and steel fibre are tied in a bundle under the bubble concrete, the last fixed surface of basic unit has the bubble concrete bearing layer under the bubble concrete, and the last fixed surface of bubble concrete bearing layer has the bubble concrete upper base layer to the inside of bubble concrete bearing layer is inlayed and is had steel fibre to be tied in a bundle, basic unit, bubble concrete bearing layer and bubble concrete upper base layer are constituteed by the weight of following material: 343 portions of Portland cement, 461 portions of stone 1008, 1261 portions of sand 512, 200 portions of water 175, 2 to 4 portions of rust inhibitor, 0.1 to 0.3 portion of air entraining agent, 1.5 to 4.5 portions of rigid fiber, 25 to 50 portions of zeolite powder and 0.1 to 0.3 portion of water-soluble glue.
Preferably, the steel fiber bundles are distributed in the bubble concrete bearing layer at equal intervals, the steel fiber bundles with different heights are arranged in a staggered mode, and the cross section areas of the adjacent steel fiber bundles of the upper layer and the lower layer are partially overlapped.
Preferably, the bundle of steel fibers is formed by gluing 3 steel fibers by water-soluble glue, and 2 of the 3 steel fibers are symmetrically distributed about the longitudinal center line of the remaining 1 steel fiber.
Preferably, the ratio of the portland cement, the stones, the sand, the water, the rust inhibitor, the air entraining agent, the steel fiber, the zeolite powder and the water-soluble glue in the lower aerated concrete base layer and the upper aerated concrete base layer is 343: 1008: 512: 175: 2: 0.1: 1.5: 25: 0.1.
preferably, the ratio of the portland cement, the stones, the sand, the water, the rust inhibitor, the air entraining agent, the steel fiber, the zeolite powder and the water-soluble glue in the bubble concrete bearing layer is 461: 1261: 621: 200: 4: 0.3: 4.5: 50: 0.3.
a preparation method of a light-weight bubble concrete structure with built-in reinforcing ribs comprises the following specific steps:
s1, mixing portland cement, pebbles, sand, water, a rust inhibitor, an air entraining agent and zeolite powder according to a set proportion;
s2, fully mixing various materials in a high-speed stirrer;
s3, bonding the steel fibers produced by the melt-draw method into an integrated bundle shape by using water-soluble glue;
s4, leading the mixed concrete material out to a cavity die;
s5, putting the bunched steel fibers into a mould and immersing the steel fibers in concrete in a layered mode;
and S6, closing the cavity until the concrete is completely solidified, and taking the concrete out of the cavity.
Preferably, the rust inhibitor is added continuously during the process of putting the Portland cement, the stones and the sand into the mixer and ensures that the Portland cement, the stones and the sand are in proportion to the added rust inhibitor.
Preferably, the rust inhibitor is JK-H2O (A) compound amino alcohol rust inhibitor.
Preferably, the air entraining agent is set as AH-1 air entraining agent.
Preferably, the steel fibers are arranged to be produced by a melt-draw process.
Compared with the prior art, the invention has the beneficial effects that: this light bubble concrete structure of built-in strengthening rib, through adding steel fibre tied in a bundle in to the concrete, make the inside stress that can bear of concrete increase, replace reinforced concrete structure through adding steel fibre tied in a bundle, make the concrete can realize pouring in advance and do not influence the intensity of concrete, make the steel fibre in the concrete can not corrode and the bubble distributes evenly through the mode of adding rust inhibitor and air entraining agent simultaneously, the stability of concrete strengthening rib structure has been promoted, adopt the steel fibre of fusion method production simultaneously because steel fibre is when meeting the sharp cooling of air, the surface shrinkage is inhomogeneous and become coarse, the cross-section also shrinks into crescent simultaneously, make the steel fibre surface roughening, the cross-section is the irregularity and increases the area of contact with the base member, the reinforcing effect of steel fibre to the concrete has been increased.
Drawings
FIG. 1 is a schematic structural diagram of a light-weight cellular concrete structure with built-in reinforcing ribs in a front cross-sectional view;
FIG. 2 is a schematic view of the whole of the light-weight cellular concrete structure with built-in reinforcing ribs according to the present invention;
FIG. 3 is a schematic top view of a steel fiber bundle in a lightweight cellular concrete structure with built-in reinforcing ribs according to the present invention;
FIG. 4 is a schematic view showing a process for preparing a lightweight cellular concrete structure with built-in reinforcing ribs according to the present invention;
in the figure: 1. a lower base layer of bubble concrete; 2. a bubble concrete bearing layer; 3. an upper base layer of air bubble concrete; 4. and (5) bundling the steel fibers.
Detailed Description
The following will clearly and completely describe the technical solutions in 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 embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a light bubble concrete structure of built-in strengthening rib, base layer 1 under the bubble concrete, bubble concrete bearing layer 2, bubble concrete upper base layer 3 and steel fibre 4 tied in a bundle, the upper surface mounting of base layer 1 has bubble concrete bearing layer 2 under the bubble concrete, and the upper surface mounting of bubble concrete bearing layer 2 has bubble concrete upper base layer 3, and the inside of bubble concrete bearing layer 2 is inlayed and is had steel fibre 4 tied in a bundle, base layer 1 under the bubble concrete, bubble concrete bearing layer 2 and bubble concrete upper base layer 3 comprise the weight of following material's weight portion's composition: 343 portions of Portland cement, 461 portions of stone 1008, 1261 portions of sand 512, 200 portions of water 175, 2 to 4 portions of rust inhibitor, 0.1 to 0.3 portion of air entraining agent, 1.5 to 4.5 portions of rigid fiber, 25 to 50 portions of zeolite powder and 0.1 to 0.3 portion of water-soluble glue.
The steel fiber 4 equidistant distribution tied in a bundle is in the inside of bubble concrete bearing layer 2, and the steel fiber 4 tied in a bundle of co-altitude is dislocation set to the cross sectional area part of the steel fiber 4 tied in a bundle of adjacent upper and lower floor overlaps, makes the steel fiber 4 tied in a bundle can support each other when the atress with the holistic intensity of reinforcing concrete.
The steel fiber bundle 4 is formed by gluing 3 steel fibers through water-soluble glue, and 2 of the 3 steel fibers are symmetrically distributed about the longitudinal center line of the remaining 1 steel fiber, so that the phenomenon that the internal strength of concrete is uneven due to scattering of the steel fibers at four places after the steel fibers enter the concrete is avoided.
Example 1
The proportion of portland cement, stones, sand, water, rust inhibitor, air entraining agent, steel fiber, zeolite powder and water-soluble glue in the lower aerated concrete base layer 1 and the upper aerated concrete base layer 3 is 343: 1008: 512: 175: 2: 0.1: 1.5: 25: 0.1.
example 2
The proportion of the portland cement, the pebbles, the sand, the water, the rust inhibitor, the air entraining agent, the steel fiber, the zeolite powder and the water-soluble glue in the bubble concrete bearing layer 2 is 461: 1261: 621: 200: 4: 0.3: 4.5: 50: 0.3.
the method comprises the following specific steps:
s1, mixing portland cement, pebbles, sand, water, a rust inhibitor, an air entraining agent and zeolite powder according to a set proportion;
s2, fully mixing various materials in a high-speed stirrer;
s3, bonding the steel fibers produced by the melt-draw method into an integrated bundle shape by using water-soluble glue;
s4, leading the mixed concrete material out to a cavity die;
s5, putting the bunched steel fibers into a mould and immersing the steel fibers in concrete in a layered mode;
and S6, closing the cavity until the concrete is completely solidified, and taking the concrete out of the cavity.
The rust inhibitor needs to be continuously added in the process of putting the portland cement, the stones and the sand into the mixer and ensures that the portland cement, the stones and the sand are in direct proportion to the added rust inhibitor so as to ensure that the rust inhibitor can be uniformly distributed in the concrete to perform rust prevention protection on steel fibers.
The rust inhibitor is JK-H2O (A) composite amino alcohol rust inhibitor.
The air entraining agent is set to be AH-1 air entraining agent.
The steel fiber is produced by adopting a fusion-drawing method, so that the surface of the steel fiber is rougher and is more tightly connected with concrete.
The working principle is as follows: firstly, silicate cement, stones, sand, water, a rust inhibitor, an air entraining agent and zeolite powder are mixed according to the established proportion in the embodiment respectively, concrete with different strength can be formed by solidification in different mixing proportions so as to be used for different purposes, in the process of mixing various materials in a high-speed mixer, the air entraining agent generates a large amount of micro bubbles through reaction with the materials, the concrete mixed according to the embodiment 1 has larger strength as a manufacturing material of a bubble concrete bearing layer 2 because of less air entraining agent, the concrete mixed according to the embodiment 2 has better sound insulation and heat insulation effects because of more added air entraining agent, so that the concrete mixed according to the embodiment 2 is poured into the bottom of a mold cavity as the main material of the bubble concrete lower base layer 1 and the bubble concrete upper base layer 3, after the concrete in the mold cavity is solidified, pouring the concrete mixed according to the embodiment 1 onto the lower bubble concrete base layer 1 solidified in the mold cavity, then laying the steel fiber bundles 4 on the concrete mixed according to the embodiment 1 which is not solidified, then pouring the concrete mixed according to the embodiment 1, uniformly distributing the steel fiber bundles 4 in the bubble concrete bearing layer 2 in a layer-by-layer mode, pouring the concrete mixed according to the embodiment 2 onto the upper surface of the bubble concrete bearing layer 2 solidified in the mold cavity after the bubble concrete bearing layer 2 is solidified, pouring the concrete blocks out of the mold cavity after the upper bubble concrete base layer 3 is solidified, completing the preparation of the light bubble concrete with the built-in reinforcing ribs, wherein the lower bubble concrete base layer 1 and the upper bubble concrete base layer 3 achieve better sound and heat insulation effects through more bubbles, and the steel fiber bundles 4 embedded in the bubble concrete bearing layer 2 replace reinforcing steel bars to be used as reinforcing ribs of the concrete, the purpose of enhancing the concrete strength is achieved, the steel fiber produced by the melt-draw method has uneven surface shrinkage and becomes rough when the steel fiber is rapidly cooled in the air, and the section also shrinks into a crescent shape, so that the surface of the steel fiber is roughened, the section is irregular, the contact area with a matrix is increased, and the reinforcing effect of the steel fiber on the concrete is increased.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a light bubble concrete structure of built-in strengthening rib, includes that bubble concrete is basic unit (1) down, bubble concrete bearing layer (2), bubble concrete upper base layer (3) and steel fibre (4) tied in a bundle, its characterized in that: the upper surface of basic unit (1) is fixed with bubble concrete bearing layer (2) under the bubble concrete to the upper surface of bubble concrete bearing layer (2) is fixed with bubble concrete upper base layer (3) to the inside of bubble concrete bearing layer (2) is inlayed and is had steel fibre (4) tied in a bundle, basic unit (1), bubble concrete bearing layer (2) and bubble concrete upper base layer (3) are constituteed by the weight of following material's composition under the bubble concrete: 343 portions of Portland cement, 461 portions of stone 1008, 1261 portions of sand 512, 200 portions of water 175, 2 to 4 portions of rust inhibitor, 0.1 to 0.3 portion of air entraining agent, 1.5 to 4.5 portions of rigid fiber, 25 to 50 portions of zeolite powder and 0.1 to 0.3 portion of water-soluble glue.
2. The structure of light-weight cellular concrete with built-in reinforcing bars according to claim 1, characterized in that: the steel fiber bundles (4) are distributed in the bubble concrete bearing layer (2) at equal intervals, the steel fiber bundles (4) with different heights are arranged in a staggered mode, and the cross section areas of the adjacent upper and lower layers of steel fiber bundles (4) are partially overlapped.
3. The structure of light-weight cellular concrete with built-in reinforcing bars according to claim 1, characterized in that: the steel fiber bundle (4) is formed by gluing 3 steel fibers through water-soluble glue, and 2 of the 3 steel fibers are symmetrically distributed about the longitudinal center line of the remaining 1 steel fiber.
4. The structure of light-weight cellular concrete with built-in reinforcing bars according to claim 1, characterized in that: the proportion of portland cement, pebbles, sand, water, a rust inhibitor, an air entraining agent, steel fibers, zeolite powder and water-soluble glue in the lower aerated concrete base layer (1) and the upper aerated concrete base layer (3) is 343: 1008: 512: 175: 2: 0.1: 1.5: 25: 0.1.
5. the structure of light-weight cellular concrete with built-in reinforcing bars according to claim 1, characterized in that: the ratio of the silicate cement, the stones, the sand, the water, the rust inhibitor, the air entraining agent, the steel fiber, the zeolite powder and the water-soluble glue in the bubble concrete bearing layer (2) is 461: 1261: 621: 200: 4: 0.3: 4.5: 50: 0.3.
6. the method for producing a light-weight cellular concrete structure with built-in reinforcing bars according to any one of claims 1 to 5: the method is characterized by comprising the following specific steps:
s1, mixing portland cement, pebbles, sand, water, a rust inhibitor, an air entraining agent and zeolite powder according to a set proportion;
s2, fully mixing various materials in a high-speed stirrer;
s3, bonding the steel fibers produced by the melt-draw method into an integrated bundle shape by using water-soluble glue;
s4, leading the mixed concrete material out to a cavity die;
s5, putting the bunched steel fibers into a mould and immersing the steel fibers in concrete in a layered mode;
and S6, closing the cavity until the concrete is completely solidified, and taking the concrete out of the cavity.
7. The method for preparing a lightweight cellular concrete structure with built-in reinforcing bars according to claim 6, characterized in that: the rust inhibitor needs to be continuously added in the process of putting the portland cement, the stones and the sand into the stirrer, and the proportion of the portland cement, the stones and the sand to the added rust inhibitor is ensured.
8. The method for preparing a light-weight cellular concrete structure with built-in reinforcing bars according to claim 6, characterized in that: the rust inhibitor is JK-H2O (A) composite amino alcohol rust inhibitor.
9. The method for preparing a lightweight cellular concrete structure with built-in reinforcing bars according to claim 6, characterized in that: the air entraining agent is set to be AH-1 air entraining agent.
10. The method for preparing a lightweight cellular concrete structure with built-in reinforcing bars according to claim 6, characterized in that: the steel fiber is produced by adopting a fusion-draw method.
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