CN115043635A - Preparation method of high-ductility shock absorption concrete - Google Patents
Preparation method of high-ductility shock absorption concrete Download PDFInfo
- Publication number
- CN115043635A CN115043635A CN202111664709.8A CN202111664709A CN115043635A CN 115043635 A CN115043635 A CN 115043635A CN 202111664709 A CN202111664709 A CN 202111664709A CN 115043635 A CN115043635 A CN 115043635A
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- China
- Prior art keywords
- parts
- ductility
- water
- quartz sand
- shock
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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
- 230000035939 shock Effects 0.000 title claims abstract description 19
- 238000010521 absorption reaction Methods 0.000 title claims description 14
- 238000002360 preparation method Methods 0.000 title abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000000835 fiber Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000006004 Quartz sand Substances 0.000 claims abstract description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000004568 cement Substances 0.000 claims abstract description 16
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 16
- 239000010881 fly ash Substances 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000010883 coal ash Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004904 shortening 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
- C04B28/06—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
- 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
- C04B2111/2038—Resistance against physical degradation
- C04B2111/2053—Earthquake- or hurricane-resistant materials
-
- 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
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- 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
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
-
- 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
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)
Abstract
The invention discloses a preparation method of high-ductility shock-absorbing concrete, which comprises the following raw materials of, by weight, 450 parts of cement, 55 parts of water, 580 parts of quartz sand, 55 parts of fly ash, 3.5 parts of a water reducing agent, 4.5 parts of fiber, 25 parts of steel fiber and 35 parts of a micro-expansion agent. The raw materials and the high-ductility shock-absorbing concrete prepared by the method have the advantages of high strength, high crack resistance, high toughness, high bending deformation resistance, fire resistance and shock resistance, simple construction, convenience, quickness, short maintenance time and wide popularization value.
Description
Technical Field
The invention relates to the technical field of concrete, in particular to a preparation method of high-ductility shock absorption concrete.
Background
The high-ductility concrete is reinforced in the concrete, so that the ductility of the concrete is improved, and meanwhile, the bending strength of the concrete is greatly improved, so that the concrete structure meets the grade requirement of the seismic strength. The high-ductility concrete has high strength, high ductility, high toughness, high bending resistance, crack resistance and seismic resistance.
The shock absorption concrete has the characteristics of self-leveling concrete, does not generate bleeding phenomenon, can be mixed with fly ash to replace part of cement in the production process of the concrete, and has good environmental protection property. The building fire-resistant wall also has fire resistance at high temperature of building fire, simultaneously the addition of the fibers greatly improves the toughness of concrete and prevents the generation of cracks, and the concrete integrally connects the whole building structure into a whole, thereby achieving the function of integral earthquake resistance. Therefore, a preparation method of the high-ductility shock absorption concrete is provided.
Disclosure of Invention
The invention aims to provide a preparation method of high-ductility shock absorption concrete, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the high-ductility shock-absorbing concrete is prepared from the following raw materials, by weight, 450 parts of cement, 55 parts of water, 580 parts of quartz sand, 55 parts of fly ash, 3.5 parts of a water reducing agent, 4.5 parts of fiber, 25 parts of steel fiber and 35 parts of a micro-expansion agent.
Preferably, the cement is high alumina cement.
Preferably, the quartz sand is ultra-fine quartz sand, and the fineness of the ultra-fine quartz sand is 40-70 meshes.
Preferably, the fly ash is I-grade fly ash, and the specific surface area is more than or equal to 700m 2 Kg, density 2.6g/cm 3 。
Preferably, the water reducing agent is a polycarboxylic acid water reducing agent.
A preparation method of high-ductility shock absorption concrete is characterized by comprising the following steps: the method comprises the following steps:
step s 1: respectively metering cement, water, quartz sand, fly ash, a water reducing agent, fibers, steel fibers and a micro-expanding agent;
step s 2: mixing cement, quartz sand, fly ash, a water reducing agent, fiber, steel fiber and a micro-expanding agent, and then adding the mixture into a stirrer to be uniformly stirred;
step s 3: after the mixture is uniformly dry-mixed, adding water into the stirrer twice and uniformly stirring, wherein two thirds of the water is added for the first time, the rest water is added for the second time, and the stirring time is not less than 6 min;
step s 4: and after stirring, filling the mixture into a mold, vibrating the mixture for forming, maintaining and demolding to obtain the high-ductility shock-absorbing concrete.
A process method of high-ductility shock-absorbing concrete is characterized in that: the method comprises the following steps:
step s 1: longitudinally and transversely pre-increasing grooves on the wall surface and the column of the original building;
step s 2: supporting a template at the periphery of the preset groove;
step s 3: pouring high-ductility shock absorption concrete;
step s 4: and (5) curing the concrete for 7 days.
Compared with the prior art, the invention has the beneficial effects that:
1. the raw materials and the high-ductility shock-absorbing concrete prepared by the method have the advantages of high strength, high crack resistance, high toughness, high bending deformation resistance, fire resistance and shock resistance, simple construction, convenience, rapidness, short maintenance time and wide popularization value.
2. The process method disclosed by the invention is simple in construction, convenient and quick, short in effective maintenance time, capable of shortening the construction period, saving materials and cost, and worthy of wide popularization.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, 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.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention provides a preparation method of high-ductility shock absorption concrete, which adopts the technical scheme that: the preparation method of the high-ductility shock absorption concrete comprises the following raw materials, by weight, 450 parts of cement, 55 parts of water, 580 parts of quartz sand, 55 parts of coal ash, 3.5 parts of a water reducing agent, 4.5 parts of fiber, 25 parts of steel fiber, 35 parts of a micro-expansion agent, high-alumina cement and ultra-fine quartz sand, wherein the fineness of the ultra-fine quartz sand is 40-70 meshes, the coal ash is I-grade coal ash, and the specific surface area is larger than or equal to 700m 2 Kg, density 2.6g/cm 3 The water reducing agent is a polycarboxylic acid water reducing agent.
A preparation method of high-ductility shock absorption concrete is characterized by comprising the following steps: the method comprises the following steps:
step s 1: respectively metering cement, water, quartz sand, fly ash, a water reducing agent, fibers, steel fibers and a micro-expansion agent;
step s 2: mixing cement, quartz sand, fly ash, a water reducing agent, fiber, steel fiber and a micro-expanding agent, and then adding the mixture into a stirrer to be uniformly stirred;
step s 3: after the mixture is uniformly dry-mixed, adding water into the stirrer twice and uniformly stirring, wherein the water is added by two thirds of the using amount of the water for the first time, the rest water is added by the second time, and the stirring time is not less than 6 min;
step s 4: and after stirring, filling a mold, vibrating for forming, curing, and demolding to obtain the high-ductility shock-absorbing concrete.
A process method of high-ductility shock absorption concrete is characterized in that: the method comprises the following steps:
step s 1: longitudinally and transversely pre-increasing grooves on the wall surface and the column of the original building;
step s 2: supporting a template at the periphery of the preset groove;
step s 3: pouring high-ductility shock absorption concrete;
step s 4: and (5) curing the concrete for 7 days.
The raw materials and the high-ductility shock-absorbing concrete prepared by the method have the advantages of high strength, high crack resistance, high toughness, high bending deformation resistance, fire resistance and shock resistance, simple construction, convenience, quickness and short maintenance time, and are worthy of wide popularization.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (7)
1. The high-ductility shock-absorbing concrete is characterized in that: the raw materials comprise, by weight, 450 parts of cement, 55 parts of water, 580 parts of quartz sand, 55 parts of fly ash, 3.5 parts of a water reducing agent, 4.5 parts of fiber, 25 parts of steel fiber and 35 parts of a micro-expansion agent.
2. The high ductility shock absorbing concrete according to claim 1, wherein: the cement is high-alumina cement.
3. The high ductility shock absorbing concrete according to claim 1, wherein: the quartz sand is ultra-fine quartz sand, and the fineness of the ultra-fine quartz sand is 40-70 meshes.
4. The high-ductility shock-absorbing concrete as claimed in claim 1, wherein: the fly ash is I-grade fly ash, and the specific surface area is more than or equal to 700m 2 Kg, density 2.6g/cm 3 。
5. The high-ductility shock-absorbing concrete as claimed in claim 1, wherein: the water reducing agent is a polycarboxylic acid water reducing agent.
6. The method for preparing high-ductility shock-absorbing concrete according to claim 1, wherein the method comprises the following steps: the method comprises the following steps:
step s 1: respectively metering cement, water, quartz sand, fly ash, a water reducing agent, fibers, steel fibers and a micro-expanding agent;
step s 2: mixing cement, quartz sand, fly ash, a water reducing agent, fiber, steel fiber and a micro-expanding agent, and then adding the mixture into a stirrer to be uniformly stirred;
step s 3: after the mixture is uniformly dry-mixed, adding water into the stirrer twice and uniformly stirring, wherein two thirds of the water is added for the first time, the rest water is added for the second time, and the stirring time is not less than 6 min;
step s 4: and after stirring, filling the mixture into a mold, vibrating the mixture for forming, maintaining and demolding to obtain the high-ductility shock-absorbing concrete.
7. The process method of the high ductility shock absorption concrete according to claim 1, characterized in that: the method comprises the following steps:
step s 1: longitudinally and transversely pre-increasing grooves in the wall surface and the column of the original building;
step s 2: supporting a template at the periphery of the preset groove;
step s 3: pouring high-ductility shock-absorbing concrete;
step s 4: and (5) curing the concrete for 7 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111664709.8A CN115043635A (en) | 2021-12-30 | 2021-12-30 | Preparation method of high-ductility shock absorption concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111664709.8A CN115043635A (en) | 2021-12-30 | 2021-12-30 | Preparation method of high-ductility shock absorption concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115043635A true CN115043635A (en) | 2022-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111664709.8A Pending CN115043635A (en) | 2021-12-30 | 2021-12-30 | Preparation method of high-ductility shock absorption concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115043635A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718113A (en) * | 2009-11-11 | 2010-06-02 | 北京航空航天大学 | Method for making shock-resistant and energy-dissipating framework by mixing resin concrete and reinforced concrete |
| JP2014074264A (en) * | 2012-09-14 | 2014-04-24 | Structural Quality Assurance Inc | Aseismic/insulation-coated reinforced-concrete structure and structure employing the same |
| CN107285714A (en) * | 2017-07-31 | 2017-10-24 | 北京中震建筑科学研究院有限公司 | A kind of high ductility vinal concrete and preparation method thereof |
| CN112521081A (en) * | 2020-12-27 | 2021-03-19 | 南京高延科技新材料有限公司 | Building reinforced high-ductility concrete and preparation and construction method thereof |
| CN113480255A (en) * | 2021-06-23 | 2021-10-08 | 中德新亚建筑材料有限公司 | High-strength high-ductility concrete |
-
2021
- 2021-12-30 CN CN202111664709.8A patent/CN115043635A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718113A (en) * | 2009-11-11 | 2010-06-02 | 北京航空航天大学 | Method for making shock-resistant and energy-dissipating framework by mixing resin concrete and reinforced concrete |
| JP2014074264A (en) * | 2012-09-14 | 2014-04-24 | Structural Quality Assurance Inc | Aseismic/insulation-coated reinforced-concrete structure and structure employing the same |
| CN107285714A (en) * | 2017-07-31 | 2017-10-24 | 北京中震建筑科学研究院有限公司 | A kind of high ductility vinal concrete and preparation method thereof |
| CN112521081A (en) * | 2020-12-27 | 2021-03-19 | 南京高延科技新材料有限公司 | Building reinforced high-ductility concrete and preparation and construction method thereof |
| CN113480255A (en) * | 2021-06-23 | 2021-10-08 | 中德新亚建筑材料有限公司 | High-strength high-ductility concrete |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220913 |
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| RJ01 | Rejection of invention patent application after publication |