CN114455892A - Light self-compacting high-performance concrete and preparation process thereof - Google Patents
Light self-compacting high-performance concrete and preparation process thereof Download PDFInfo
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- CN114455892A CN114455892A CN202210093347.XA CN202210093347A CN114455892A CN 114455892 A CN114455892 A CN 114455892A CN 202210093347 A CN202210093347 A CN 202210093347A CN 114455892 A CN114455892 A CN 114455892A
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- parts
- performance concrete
- cement
- water
- compacting high
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- 239000004574 high-performance concrete Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000004568 cement Substances 0.000 claims abstract description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000000654 additive Substances 0.000 claims abstract description 16
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 16
- 230000000996 additive effect Effects 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000010881 fly ash Substances 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 10
- 239000003223 protective agent Substances 0.000 claims abstract description 10
- 238000005086 pumping Methods 0.000 claims abstract description 10
- 239000004576 sand Substances 0.000 claims abstract description 10
- 239000002893 slag Substances 0.000 claims abstract description 10
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 5
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 5
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 5
- AMTWCFIAVKBGOD-UHFFFAOYSA-N dioxosilane;methoxy-dimethyl-trimethylsilyloxysilane Chemical compound O=[Si]=O.CO[Si](C)(C)O[Si](C)(C)C AMTWCFIAVKBGOD-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 229940083037 simethicone Drugs 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 25
- 239000004567 concrete Substances 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 239000011376 self-consolidating concrete Substances 0.000 abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000010959 steel 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
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 light self-compacting high-performance concrete which comprises the following materials in parts by weight: 150-250 parts of coarse aggregate, 150 parts of fine sand, 5-10 parts of cement, 30-60 parts of water, 5-10 parts of pumping agent, 3-5 parts of protective agent, 25-45 parts of additive and 5-8 parts of water reducing agent. The additive comprises the following raw materials in parts by weight: 3-5 parts of cement, 20-30 parts of slag powder, 15-25 parts of fly ash, 3-8 parts of hydrophobic silicon dioxide, 3-5 parts of simethicone and 8-12 parts of water. The invention reduces the use of commercial cement, utilizes slag powder and fly ash to prepare additives, is used as a gel material and replaces the use of cement in self-compacting concrete.
Description
Technical Field
The invention relates to the field of concrete, in particular to light self-compacting high-performance concrete and a preparation process thereof.
Background
Self-compacting concrete refers to concrete which can flow and be compact under the action of self gravity, can completely fill a template even if compact steel bars exist, and simultaneously obtains good homogeneity without additional vibration. The self-compacting concrete is generally large in cement usage amount, carbon emission of the cement in the production process is large, the use of the cement is reduced, the carbon emission can be reduced, the cement usage amount is reduced, and the self-compacting concrete can meet the use requirement and become a new research hotspot.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to solve the technical problem of the prior art and provides a light self-compacting high-performance concrete and a preparation process thereof.
In order to solve the technical problem, the invention discloses a light self-compacting high-performance concrete which comprises the following materials in parts by weight: 150-250 parts of coarse aggregate, 150 parts of fine sand, 5-10 parts of cement, 30-60 parts of water, 5-10 parts of pumping agent, 3-5 parts of protective agent, 25-45 parts of additive and 5-8 parts of water reducing agent.
In the invention, the additive comprises the following raw materials in parts by weight: 3-5 parts of cement, 20-30 parts of slag powder, 15-25 parts of fly ash, 3-8 parts of hydrophobic silicon dioxide, 3-5 parts of simethicone and 8-12 parts of water.
In the invention, the mesh number of the slag powder and the fly ash is 300 meshes.
In the invention, the particle size of the coarse aggregate is 10-20 mm.
In the invention, the water reducing agent is a polycarboxylic acid high-efficiency water reducing agent.
The invention also discloses a preparation process of the light self-compacting high-performance concrete, which comprises the following steps:
step 1: washing the coarse aggregate with water and drying;
step 2: pouring the washed and dried coarse aggregate, fine sand and cement into a stirrer for stirring to obtain a primary mixed material;
and step 3: adding the additive into the primary mixed material, and stirring to obtain a secondary mixed material;
and 4, step 4: and adding water, a pumping agent, a protective agent and a water reducing agent into the second-stage mixed material, and stirring to obtain a concrete finished product.
In the invention, the stirring speed in the step 2 is 50r/min, and the stirring time is 10 min.
In the invention, the stirring speed in the step 3 is 60r/min, and the stirring time is 15 min.
In the invention, the stirring speed in the step 4 is 80r/min, and the stirring time is 15 min.
Has the beneficial effects that: the invention reduces the use of commercial cement, utilizes slag powder and fly ash to prepare additives, is used as a gel material and replaces the use of cement in self-compacting concrete.
Detailed Description
Example 1:
the embodiment provides a light self-compacting high-performance concrete which comprises the following materials in parts by weight: 150-250 parts of coarse aggregate, 150 parts of fine sand, 5-10 parts of cement, 30-60 parts of water, 5-10 parts of pumping agent, 3-5 parts of protective agent, 25-45 parts of additive and 5-8 parts of water reducing agent. The embodiment specifically comprises the following steps: 200 parts of coarse aggregate, 125 parts of fine sand, 8 parts of cement, 45 parts of water, 8 parts of pumping agent, 4 parts of protective agent, 32 parts of additive and 6 parts of water reducing agent.
In the embodiment, the additive comprises the following raw materials in parts by weight: 3-5 parts of cement, 20-30 parts of slag powder, 15-25 parts of fly ash, 3-8 parts of hydrophobic silicon dioxide, 3-5 parts of simethicone and 8-12 parts of water. The concrete example of the embodiment is 4 parts of cement, 25 parts of slag powder, 20 parts of fly ash, 6 parts of hydrophobic silicon dioxide, 4 parts of dimethyl silicone oil and 10 parts of water.
In this embodiment, the mesh number of the slag powder and the fly ash is 300 meshes.
In this embodiment, the particle size of the coarse aggregate is 10 to 20 mm.
In this embodiment, the water reducing agent is a polycarboxylic acid high efficiency water reducing agent.
The embodiment also discloses a preparation process of the light self-compacting high-performance concrete, which comprises the following steps:
step 1: washing the coarse aggregate with water and drying;
and 2, step: pouring the washed and dried coarse aggregate, fine sand and cement into a stirrer to be stirred to obtain a primary mixed material;
and step 3: adding the additive into the primary mixed material, and stirring to obtain a secondary mixed material;
and 4, step 4: and adding water, a pumping agent, a protective agent and a water reducing agent into the second-stage mixed material, and stirring to obtain a concrete finished product.
In the invention, the stirring speed in the step 2 is 50r/min, and the stirring time is 10 min.
In the invention, the stirring speed in the step 3 is 60r/min, and the stirring time is 15 min.
In the invention, the stirring speed in the step 4 is 80r/min, and the stirring time is 15 min.
Example 2:
the embodiment provides a light self-compacting high-performance concrete which comprises the following materials in parts by weight: 150 parts of coarse aggregate, 100 parts of fine sand, 5 parts of cement, 30 parts of water, 5 parts of pumping agent, 3 parts of protective agent, 25 parts of additive and 5 parts of water reducing agent.
Example 3:
the embodiment provides a light self-compacting high-performance concrete which comprises the following materials in parts by weight: 250 parts of coarse aggregate, 150 parts of fine sand, 10 parts of cement, 60 parts of water, 10 parts of pumping agent, 5 parts of protective agent, 45 parts of additive and 8 parts of water reducing agent.
The concrete of the three examples is subjected to performance tests, and the results are shown in the following table 1:
TABLE 1
As can be seen from the above table, the concrete of the three examples all meet the performance requirements of the conventional commercial concrete in all aspects of tests.
The present invention provides a light self-compacting high performance concrete and a method for preparing the same, and a plurality of methods and ways for implementing the technical scheme, and the above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should be regarded as the protection scope of the present invention. All the components not specified in the present embodiment can be realized by the prior art.
Claims (9)
1. The lightweight self-compacting high-performance concrete is characterized by comprising the following materials in parts by weight: 150-250 parts of coarse aggregate, 150 parts of fine sand, 5-10 parts of cement, 30-60 parts of water, 5-10 parts of pumping agent, 3-5 parts of protective agent, 25-45 parts of additive and 5-8 parts of water reducing agent.
2. The lightweight self-compacting high-performance concrete as claimed in claim 1, wherein the additive comprises the following raw materials in parts by weight: 3-5 parts of cement, 20-30 parts of slag powder, 15-25 parts of fly ash, 3-8 parts of hydrophobic silicon dioxide, 3-5 parts of simethicone and 8-12 parts of water.
3. The lightweight self-compacting high performance concrete according to claim 1, wherein the mesh size of the slag powder and the fly ash is 300 mesh.
4. The lightweight self-compacting high-performance concrete according to claim 1, wherein the particle size of the coarse aggregate is 10-20 mm.
5. The lightweight self-compacting high-performance concrete according to claim 1, characterized in that the water reducing agent is a polycarboxylic acid high-efficiency water reducing agent.
6. A preparation process of light self-compacting high-performance concrete is characterized by comprising the following steps:
step 1: washing the coarse aggregate with water and drying;
step 2: pouring the washed and dried coarse aggregate, fine sand and cement into a stirrer to be stirred to obtain a primary mixed material;
and 3, step 3: adding the additive into the primary mixed material, and stirring to obtain a secondary mixed material;
and 4, step 4: and adding water, a pumping agent, a protective agent and a water reducing agent into the second-stage mixed material, and stirring to obtain a concrete finished product.
7. The preparation process of the lightweight self-compacting high-performance concrete according to claim 6, wherein the stirring speed in step 2 is 50r/min, and the stirring time is 10 min.
8. The preparation process of the lightweight self-compacting high-performance concrete according to claim 6, wherein the stirring speed in step 3 is 60r/min, and the stirring time is 15 min.
9. The preparation process of the lightweight self-compacting high-performance concrete according to claim 6, wherein the stirring speed in step 4 is 80r/min, and the stirring time is 15 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210093347.XA CN114455892A (en) | 2022-01-26 | 2022-01-26 | Light self-compacting high-performance concrete and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210093347.XA CN114455892A (en) | 2022-01-26 | 2022-01-26 | Light self-compacting high-performance concrete and preparation process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114455892A true CN114455892A (en) | 2022-05-10 |
Family
ID=81411699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210093347.XA Pending CN114455892A (en) | 2022-01-26 | 2022-01-26 | Light self-compacting high-performance concrete and preparation process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114455892A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2377930A (en) * | 2001-06-08 | 2003-01-29 | Rmc Readymix Ltd | A self-levelling concrete composition |
| CN102060482A (en) * | 2010-11-15 | 2011-05-18 | 北京新奥混凝土集团有限公司 | Self-compacting concrete |
| CN102503228A (en) * | 2011-11-02 | 2012-06-20 | 山东华伟银凯建材科技股份有限公司 | Protective agent for concrete and mortar |
| CN106587861A (en) * | 2016-12-09 | 2017-04-26 | 新昌县永佳耐火材料厂 | Pressure resisting mortar |
| CN110317025A (en) * | 2019-08-07 | 2019-10-11 | 东莞市润阳联合智造有限公司 | A kind of strong concrete composition and non-light tight concrete wall lamp preparation method |
| CN111978044A (en) * | 2020-08-25 | 2020-11-24 | 山东华爵混凝土有限公司 | Self-compacting concrete and preparation method thereof |
| CN112079600A (en) * | 2019-06-13 | 2020-12-15 | 周兆弟 | Self-compacting concrete for pumping |
-
2022
- 2022-01-26 CN CN202210093347.XA patent/CN114455892A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2377930A (en) * | 2001-06-08 | 2003-01-29 | Rmc Readymix Ltd | A self-levelling concrete composition |
| CN102060482A (en) * | 2010-11-15 | 2011-05-18 | 北京新奥混凝土集团有限公司 | Self-compacting concrete |
| CN102503228A (en) * | 2011-11-02 | 2012-06-20 | 山东华伟银凯建材科技股份有限公司 | Protective agent for concrete and mortar |
| CN106587861A (en) * | 2016-12-09 | 2017-04-26 | 新昌县永佳耐火材料厂 | Pressure resisting mortar |
| CN112079600A (en) * | 2019-06-13 | 2020-12-15 | 周兆弟 | Self-compacting concrete for pumping |
| CN110317025A (en) * | 2019-08-07 | 2019-10-11 | 东莞市润阳联合智造有限公司 | A kind of strong concrete composition and non-light tight concrete wall lamp preparation method |
| CN111978044A (en) * | 2020-08-25 | 2020-11-24 | 山东华爵混凝土有限公司 | Self-compacting concrete and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张巨松: "《自密实混凝土》", 31 August 2017, 哈尔滨工业大学出版社 * |
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Application publication date: 20220510 |