CN111635157A - Concrete admixture, preparation method thereof and concrete added with concrete admixture - Google Patents
Concrete admixture, preparation method thereof and concrete added with concrete admixture Download PDFInfo
- Publication number
- CN111635157A CN111635157A CN202010574101.5A CN202010574101A CN111635157A CN 111635157 A CN111635157 A CN 111635157A CN 202010574101 A CN202010574101 A CN 202010574101A CN 111635157 A CN111635157 A CN 111635157A
- Authority
- CN
- China
- Prior art keywords
- concrete
- parts
- percent
- concrete admixture
- powder
- 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
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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
- 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
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent 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
- C04B2111/76—Use at unusual temperatures, e.g. sub-zero
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a concrete admixture, which relates to the technical field of concrete and is prepared from the following raw materials in percentage by weight: 40-57% of blast furnace slag; 15% -25% of coal ash; 3% -5% of gypsum powder; 3% -5% of silica sand powder; 10% -15% of silica fume; 3 to 5 percent of calcium powder; 8% -15% of microbeads; 1% -5% of glass powder, which has the advantages of effectively enhancing the strength, frost resistance and impermeability of concrete. The invention also discloses a preparation method of the concrete admixture, which comprises the following steps: weighing the components according to the mass ratio; mixing the weighed components, and crushing to obtain the powder with the specific surface area of 500-1200m2(ii)/g; the method can promote the effective mixing and reaction of the components of the concrete admixture, so that the prepared concrete admixture has better performanceThe strength of the concrete is improved. The invention also discloses concrete added with the concrete admixture, which is prepared from the following components in parts by weight: cement 290-300 parts; 1100-1200 parts of gravel; 680 and 880 parts of sand; 120 portions of concrete admixture and 130 portions; 100 portions of water and 120 portions of water; 7-10 parts of a water reducing agent, which has the advantages of high strength, frost resistance and impermeability.
Description
Technical Field
The invention relates to the technical field of concrete, in particular to a concrete admixture, a preparation method thereof and concrete added with the concrete admixture.
Background
The concrete admixture is added in the process of stirring concrete, can obviously improve the chemical substances of the concrete performance, and has the characteristics of multiple varieties, small admixture amount, great influence on the performance of the concrete, less investment, quick response and obvious technical and economic benefits. The concrete added with the admixture is particularly suitable for preparing the tubular pile used as the bearing column, and the prepared tubular pile has the advantages of high strength and good bearing performance.
The Chinese patent with the prior application publication number of CN104129938A discloses a mineral admixture for a concrete pipe pile, which consists of silicon micropowder, kaolin, fly ash, blast furnace slag, gypsum powder, anhydrous sodium sulphate and nano calcium carbonate, wherein the weight ratio of the raw materials is as follows: 5-10 parts of silicon micro powder and 5-10 parts of kaolin; 25-40 parts of fly ash; 50-65 parts of blast furnace slag; 8-15 parts of gypsum powder; 3-5 parts of anhydrous sodium sulphate; 1-4 parts of nano calcium carbonate. When the mineral admixture is used for preparing the tubular pile, the microstructure in concrete can be improved to a certain extent, the potential strength of cement is exerted, and the requirement that the strength grade of the tubular pile reaches 80MPa can be met by adopting normal-pressure steam curing when the concrete tubular pile is prefabricated.
The above prior art solutions have the following drawbacks: although the mineral admixture in the above-mentioned patent enhances the strength of concrete, so that the strength of the prepared pipe pile can reach 80MPa, when the pipe pile is used in cold areas for a long time (especially northeast, the winter temperature is lower than minus 30 ℃), the frost resistance of the pipe pile is low, the strength is reduced after long-time use, and the frost resistance and the strength need to be improved.
Disclosure of Invention
In view of the disadvantages of the prior art, it is an object of the present invention to provide a concrete admixture which has the advantages of effectively enhancing the strength, frost resistance and impermeability of concrete.
The invention also aims to provide a preparation method of the concrete admixture, which can promote the effective mixing and reaction of all components of the concrete admixture, so that the prepared concrete admixture has excellent performance of improving the strength of concrete.
The invention also aims to provide concrete added with the concrete admixture, which has the advantages of better strength, frost resistance and impermeability.
In order to achieve the first object, the invention provides the following technical scheme:
a concrete admixture is prepared from the following raw materials in percentage by weight:
40-57% of blast furnace slag;
15% -25% of coal ash;
3% -5% of gypsum powder;
3% -5% of silica sand powder;
10% -15% of silica fume;
3 to 5 percent of calcium powder;
8% -15% of microbeads;
1 to 5 percent of glass powder.
By adopting the technical scheme, the blast furnace slag can be used as concrete aggregate and can show hydraulic gelation performance under the action of excitants such as gypsum and the like; the coal ash can replace part of cement and fine aggregate, and can improve the performance of concrete; the gypsum powder is used for delaying the setting time of the cement, thereby being beneficial to the stirring and transportation of the concrete; the silica sand powder can improve the workability of concrete and improve the steam curing performance of the concrete; the silica sand has the characteristics of small particle size and high hardness, and can be filled into micropores in concrete to enhance the strength and the impermeability of the concrete; calcium powder is used for enhancing the toughness and strength of concrete; the full-spherical microbeads have the self-lubricating effect, so that the concrete can be stirred and mixed easily, and meanwhile, the granular microbeads can be filled into micropores in the concrete, so that the strength, frost resistance and impermeability of the concrete are enhanced; the glass powder is used as hard superfine particle powder, plays a self-lubricating role in concrete stirring, and can be filled into micropores in concrete to enhance the strength, frost resistance and impermeability of the concrete. The scheme utilizes the synergistic effect of all the components, and can effectively enhance the compressive strength and the frost resistance of the concrete.
The present invention in a preferred example may be further configured to: the material is prepared from the following raw materials in percentage by weight:
42 to 45 percent of blast furnace slag;
16% -17% of coal ash;
3.5 to 4 percent of gypsum powder;
3.6 to 4 percent of silica sand powder;
11% -12% of silica fume;
3.5 to 4 percent of calcium powder;
9% -13% of microbeads;
2 to 4 percent of glass powder.
By adopting the technical scheme, the prepared concrete admixture has better performance by adding each component with specific mixing amount, and the strength and frost resistance of the concrete can be effectively enhanced.
The present invention in a preferred example may be further configured to: the material is prepared from the following raw materials in percentage by weight:
44.4 percent of blast furnace slag;
16.8 percent of coal ash;
3.7 percent of gypsum powder;
3.8 percent of silica sand powder;
11.9 percent of silica fume;
3.8 percent of calcium powder;
12% of micro-beads
3.6 percent of glass powder.
By adopting the technical scheme, the components with specific mixing amounts are selected, so that the prepared concrete admixture has excellent performance, and the strength and frost resistance of concrete can be effectively enhanced.
In order to achieve the second object, the invention provides the following technical scheme:
a preparation method of concrete admixture comprises the following steps:
s1, weighing the components according to the mass ratio;
s2, mixing the weighed components, and crushing the mixture until the specific surface area is 500-1200m2/g。
By adopting the technical scheme, the mixture is crushed to a specific surface area, which is beneficial to the uniform mixing and the full reaction of all the components, so that the concrete admixture has better performance.
In order to achieve the third object, the invention provides the following technical solutions:
the concrete added with the concrete admixture is prepared from the following components in parts by weight:
cement 290-300 parts;
1100-1200 parts of gravel;
680 and 880 parts of sand;
120 portions of concrete admixture and 130 portions;
100 portions of water and 120 portions of water;
7-10 parts of a water reducing agent.
By adopting the technical scheme, the concrete is prepared by selecting the components with specific mixing amount, so that the prepared concrete has better strength and frost resistance.
The present invention in a preferred example may be further configured to: the composition is prepared from the following components in parts by weight:
294 parts of cement;
1152 parts of macadam;
780 parts of sand;
126 parts of concrete admixture;
110 parts of water;
8 parts of a water reducing agent.
By adopting the technical scheme, the concrete is prepared by selecting the components with specific mixing amount, so that the prepared concrete has better strength and frost resistance.
The present invention in a preferred example may be further configured to: the water reducing agent is selected from one or more of TPEG series water reducing agents and APEG series water reducing agents.
By adopting the technical scheme, the workability and the fluidity of the concrete are improved by utilizing the water reducing agent, so that the components can be uniformly mixed and fully reacted, and the overall performance of the concrete is improved.
The present invention in a preferred example may be further configured to: the preparation method of the concrete comprises the following steps:
s1, weighing the components in parts by weight;
s2, mixing cement, sand, water and a water reducing agent, stirring for 8-10min, adding broken stone, and stirring for 5-6min to obtain a first-level mixture;
and S3, adding concrete admixture into the primary mixture, and stirring for 3-5min to obtain the concrete.
By adopting the technical scheme, the components can be uniformly mixed, and the prepared concrete has excellent strength and frost resistance.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the prepared admixture has excellent performance by utilizing the synergistic effect of all the components, so that the strength and the frost resistance of concrete can be effectively enhanced;
2. the invention utilizes the synergistic effect of the components in the concrete admixture to ensure that the prepared concrete has better strength and frost resistance, thereby ensuring that the prepared tubular pile has better strength and frost resistance.
Detailed Description
Examples 1 to 6
The concrete admixtures of examples 1-6 were prepared by the same method except for the amounts of the components, as shown in Table 1:
taking example 5 as an example, the preparation method of the concrete admixture is as follows:
s1, weighing the components according to the mass ratio;
s2, mixing the weighed components, and putting the mixture into a ball mill to be ground until the specific surface area is 1000m2/g。
Example 7
This example differs from example 5 only in that: pulverizing the mixture to a specific surface area of 500m2/g。
Example 8
This example differs from example 5 only in that: pulverizing the mixture to a specific surface area of 1200m2/g。
Example 9-example 12
The concrete of examples 9-12 were prepared by adding the concrete admixture of example 5 to the concrete of examples 9-12, and the concrete of examples 9-12 was prepared by the same method except for the amounts of the components, as shown in Table 2:
taking example 10 as an example, the preparation method of the concrete is as follows:
s1, weighing the components in parts by weight;
s2, mixing cement, sand, water and a water reducing agent, stirring for 9min, adding broken stone, and stirring for 5min to obtain a first-stage mixture;
and S3, adding concrete admixture into the primary mixture, and stirring for 4min to obtain the concrete.
Comparative examples 1 to 5
The concrete admixtures of comparative examples 1 to 5 were prepared by the method of example 5, except for the blending amounts of the respective components, as shown in Table 3:
comparative example 6
The mineral admixture obtained in example 1 of the comparison document (CN 104129938A) was used as the comparison example.
Comparative example 7 to comparative example 10
The concrete of comparative examples 7 to 10 were each prepared by adding the concrete admixture obtained in example 5 to the concrete of comparative examples 7 to 10, and the concrete of comparative examples 7 to 10 was prepared by the method of example 10, except for the blending amounts of the components, as shown in Table 4:
comparative example 11
The concrete admixture of example 10 was replaced with the mineral admixture of example 1 of the comparison document (CN 104129938A) and the prepared concrete was used as the control.
The sources of the components in each example and each control example are shown in table 5:
the concrete admixtures prepared in examples 1 to 8 and comparative examples 1 to 6 were tested for fluidity ratio and steam curing activity index by the following procedures:
first, fluidity ratio test
Testing according to the specification of GB/T18046-2017, wherein the fluidity ratio = fluidity of tested mortar/fluidity of contrast mortar 100%; wherein the comparison cement adopts ordinary portland cement with the strength grade of 42.5, the technical performance of the ordinary portland cement conforms to the regulation of GB 175-2007, and the proportion of the test mortar is shown in the following table A:
second, steam curing activity index test
Steam curing activity index test: the tested mortar entity and the comparative mortar entity are subjected to steam curing according to a specified method, then are continuously subjected to standard curing in water to a specified age, and the compressive strength is respectively measured; the ratio of the compressive strength of the tested mortar to that of the comparative mortar at the same age is expressed in percentage. The activity of the admixture directly determines the performance of the concrete, and the admixture with higher activity can improve the overall performance of the concrete to a great extent.
(1) The test instrument: the cement mortar mixer, the vibrating table, the test mould, the bending tester, the compression tester and the steam curing box accord with the regulations of GB/T17671-1999.
(2) And (3) comparing cement: the comparison cement adopts ordinary portland cement with the strength grade of 42.5, and the technical performance of the comparison cement meets the regulation of GB 175-2007.
(3) Test samples: the comparative cement and concrete admixture were formulated in the proportions shown in Table A.
(4) Mixing the mortar: the ratio of the comparative mortar to the mortar to be tested is shown in Table A.
(5) And (3) manufacturing a test piece: stirring the mortar according to the regulation of GB/T17671-1999, and forming a mortar sample after stirring; demoulding the mortar sample after standard curing (the humidity is more than 90 percent and the temperature is 20 ℃) for 24 hours, then starting steam curing operation of the mortar sample in a steam curing box (under one atmospheric pressure), raising the temperature to 85 ℃ at a constant speed for 2 hours, keeping the temperature at 85 ℃ for 4 hours, and stopping heating; keeping the mortar sample in the steam-curing box for 1 hour, taking the sample out of the steam-curing box, and naturally cooling the sample indoors; after cooling to room temperature, part of the mortar test pieces can be used for measuring the compressive strength, and the rest mortar test pieces are put into water at 20 ℃ for curing.
(6) And (3) testing the compressive strength: in this experiment, 3 test pieces were prepared from the concrete admixtures obtained in examples 1 to 8 and comparative examples 1 to 6, and the compressive strength of the mortar test pieces was measured in accordance with GB/T17671-1999. After the mortar is cooled, the steam curing compressive strength R of the tested mortar and the comparative mortar are respectively measuredSteaming foodAnd R0 steaming. The rest mortar test pieces are subjected to standard culture in water, a part of mortar test pieces are taken out after the 3d age, and the compressive strength R of the tested mortar and the compressive strength R of the comparative mortar are respectively measured3And R03(ii) a After the glue sand is cultured in water for 28 days, the rest glue sand sample is taken out, and the compression strength R of the tested glue sand and the compression strength R of the reference glue sand are respectively measured28And R028。
(7) And (4) calculating a result:
Asteaming food=（RSteaming food/R0 steaming）*100%
A3=（R3/R03）*100%
A28=（R28/R028/）*100%
In the above formula: a. theSteaming food: concrete admixture steam curing activity index,%; a. the3: 3d steam curing activity index of concrete admixture,%; a. the28: concrete admixture 28d steam curing activity index percent.
The test results are shown in table 6:
the concrete prepared in example 9-example 12 and comparative example 7-comparative example 11 was subjected to the following performance test procedures:
concrete compression strength test
Referring to GB/T50082-.
Second, anti-freezing test
The concrete samples obtained in examples 9 to 12 and comparative examples 7 to 11 were each subjected to a freeze resistance test in 5 pieces by the slow freezing method described in GB/T50082-2009. In this test, the maximum number of freeze-thaw cycles was evaluated, and the average value was taken for each group and recorded.
Third, impermeability test
The water permeability resistance of each concrete sample was tested by referring to the step-by-step pressurization method described in GB/T50082-2009.
The test results of test one to test three are shown in table 7:
fourth, simulation tubular pile compressive strength test
Pouring the concrete prepared in the example 10, the comparative example 8 and the comparative example 11 into 3 groups of moulds, wherein each group comprises 8 moulds, removing two moulds from each group after curing for 6 hours by adopting normal-pressure steam, cooling to room temperature, and then testing the compressive strength by referring to GB/T50082 to obtain an average value; after normal-pressure steam curing, selecting two molds in each group, placing the molds at room temperature for curing for 3 days, carrying out a compressive strength test according to GB/T50082, and taking an average value; after normal-pressure steam curing, selecting two molds, placing the two molds in a high-pressure curing chamber for curing for 2 days, cooling the molds to room temperature, and then testing the compressive strength of the molds according to GB/T50082 to obtain an average value; and (4) after the normal-pressure steam curing, placing the remaining two molds in a standard curing room for curing for 28 days, cooling to room temperature, then testing the compressive strength according to GB/T50082, and taking an average value.
The test results are shown in Table 8:
as shown in table 6, compared with the comparative example 6, the concrete admixture in examples 1 to 8 has better fluidity and steam curing activity index, which indicates that the concrete added with the admixture still has better fluidity, and further the concrete added with the admixture still has better workability, and the concrete in examples 9 to 12 shows better compressive strength, frost resistance and impermeability in combination with table 7, which indicates that the concrete admixture disclosed by the invention can effectively enhance the strength and frost resistance of the concrete, and the concrete admixture in combination with table 8 indicates that the pipe pile prepared from the concrete added with the concrete admixture has better compressive strength.
As can be seen from table 6, compared with comparative examples 1 to 4, the concrete admixtures of examples 1 to 6 have better fluidity ratio and steam curing activity index, which indicates that the calcium powder, the micro-beads and the glass powder added in the invention can effectively improve the performance of the concrete admixtures; the concrete admixtures of examples 1-6 exhibited better fluidity ratios and steam set activity indices than comparative example 1, indicating that the concrete admixtures prepared with the disclosed admixtures of the present invention exhibited better performance.
As can be seen from Table 7, compared with comparative examples 8 and 9, the concrete with the concrete admixture in examples 9-12 shows better compressive strength, frost resistance and impermeability, which indicates that the concrete admixture disclosed by the invention can improve the comprehensive performance of the concrete, and the concrete admixture is added according to the admixture disclosed by the invention, so that the prepared concrete has better strength and frost resistance; compared with the comparative example 7, the concrete in the examples 9 to 12 has better strength and frost resistance, which shows that the concrete prepared by referring to the doping amount disclosed by the invention can show better strength and frost resistance, so that the prepared tubular pile has better strength and frost resistance.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. A concrete admixture is characterized in that: the material is prepared from the following raw materials in percentage by weight:
40-57% of blast furnace slag;
15% -25% of coal ash;
3% -5% of gypsum powder;
3% -5% of silica sand powder;
10% -15% of silica fume;
3 to 5 percent of calcium powder;
8% -15% of microbeads;
1 to 5 percent of glass powder.
2. A concrete admixture according to claim 1 wherein: the material is prepared from the following raw materials in percentage by weight:
42 to 45 percent of blast furnace slag;
16% -17% of coal ash;
3.5 to 4 percent of gypsum powder;
3.6 to 4 percent of silica sand powder;
11% -12% of silica fume;
3.5 to 4 percent of calcium powder;
9% -13% of microbeads;
2 to 4 percent of glass powder.
3. A concrete admixture according to claim 2 wherein: the material is prepared from the following raw materials in percentage by weight:
44.4 percent of blast furnace slag;
16.8 percent of coal ash;
3.7 percent of gypsum powder;
3.8 percent of silica sand powder;
11.9 percent of silica fume;
3.8 percent of calcium powder;
12% of microbeads;
3.6 percent of glass powder.
4. A method of preparing a concrete admixture according to any one of claims 1 to 3 wherein: the method comprises the following steps:
s1, weighing the components according to the mass ratio;
s2, mixing the weighed components, and crushing the mixture until the specific surface area is 500-1200m2/g。
5. A concrete incorporating a concrete admixture according to any one of claims 1 to 3, wherein: the composition is prepared from the following components in parts by weight:
cement 290-300 parts;
1100-1200 parts of gravel;
680 and 880 parts of sand;
120 portions of concrete admixture and 130 portions;
100 portions of water and 120 portions of water;
7-10 parts of a water reducing agent.
6. The concrete loaded with a concrete admixture according to claim 5, wherein: the composition is prepared from the following components in parts by weight:
294 parts of cement;
1152 parts of macadam;
780 parts of sand;
126 parts of concrete admixture;
110 parts of water;
8 parts of a water reducing agent.
7. The concrete loaded with a concrete admixture according to claim 6, wherein: the water reducing agent is selected from one or more of TPEG series water reducing agents and APEG series water reducing agents.
8. The concrete loaded with a concrete admixture according to any one of claims 5 to 7, wherein: the preparation method of the concrete comprises the following steps:
s1, weighing the components in parts by weight;
s2, mixing cement, sand, water and a water reducing agent, stirring for 8-10min, adding broken stone, and stirring for 5-6min to obtain a first-level mixture;
and S3, adding concrete admixture into the primary mixture, and stirring for 3-5min to obtain the concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010574101.5A CN111635157A (en) | 2020-06-22 | 2020-06-22 | Concrete admixture, preparation method thereof and concrete added with concrete admixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010574101.5A CN111635157A (en) | 2020-06-22 | 2020-06-22 | Concrete admixture, preparation method thereof and concrete added with concrete admixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111635157A true CN111635157A (en) | 2020-09-08 |
Family
ID=72328395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010574101.5A Pending CN111635157A (en) | 2020-06-22 | 2020-06-22 | Concrete admixture, preparation method thereof and concrete added with concrete admixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111635157A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113372087A (en) * | 2021-07-19 | 2021-09-10 | 深圳市东大洋水泥制品有限公司 | Early-strength high-impermeability concrete and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001234531A (en) * | 2000-02-24 | 2001-08-31 | Shimizu Corp | Steel pipe pile filled with soil cement and method for building the same |
| CN101041566A (en) * | 2007-02-28 | 2007-09-26 | 嘉兴学院管桩应用技术研究所 | Producing method of three-component composite doping material for high-strength pipe pile production |
| CN103847024A (en) * | 2012-12-06 | 2014-06-11 | 蒋元海 | Method for producing prestress high-intensity concrete (PHC) pipe piles by glass-doped powder |
| CN104129938A (en) * | 2014-07-21 | 2014-11-05 | 牟忠江 | Mineral admixture for concrete tubular pile and preparation method thereof |
| CN104291757A (en) * | 2014-09-29 | 2015-01-21 | 华南理工大学 | Non-autoclaved PHC (Pre-stressed High-strength Concrete) tubular pile suitable for corrosive environment |
-
2020
- 2020-06-22 CN CN202010574101.5A patent/CN111635157A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001234531A (en) * | 2000-02-24 | 2001-08-31 | Shimizu Corp | Steel pipe pile filled with soil cement and method for building the same |
| CN101041566A (en) * | 2007-02-28 | 2007-09-26 | 嘉兴学院管桩应用技术研究所 | Producing method of three-component composite doping material for high-strength pipe pile production |
| CN103847024A (en) * | 2012-12-06 | 2014-06-11 | 蒋元海 | Method for producing prestress high-intensity concrete (PHC) pipe piles by glass-doped powder |
| CN104129938A (en) * | 2014-07-21 | 2014-11-05 | 牟忠江 | Mineral admixture for concrete tubular pile and preparation method thereof |
| CN104291757A (en) * | 2014-09-29 | 2015-01-21 | 华南理工大学 | Non-autoclaved PHC (Pre-stressed High-strength Concrete) tubular pile suitable for corrosive environment |
Non-Patent Citations (4)
| Title |
|---|
| 张兰芳著: "《碱激发矿渣水泥和混凝土》", 31 August 2018, 西南交通大学出版社 * |
| 李辉等主编: "《土木工程材料》", 31 March 2017, 西南交通大学出版社 * |
| 杨晓东编著: "《建筑材料检测》", 31 March 2018, 中国建材工业出版社 * |
| 耿明全主编: "《移动式空心排桩导流和支挡设计与施工》", 31 July 2011, 黄河水利出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113372087A (en) * | 2021-07-19 | 2021-09-10 | 深圳市东大洋水泥制品有限公司 | Early-strength high-impermeability concrete and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Raisi et al. | Mechanical performance of self-compacting concrete incorporating rice husk ash | |
| Kishore et al. | Study on strength characteristics of high strength rice husk ash concrete | |
| US7141112B2 (en) | Cementitious materials including stainless steel slag and geopolymers | |
| Patil et al. | GGBS as partial replacement of OPC in cement concrete–An experimental study | |
| US6869473B2 (en) | Cementicious materials including stainless steel slag and geopolymer | |
| Yüksel et al. | Use of granulated blast-furnace slag in concrete as fine aggregate | |
| Shanmugapriya et al. | Experimental investigation on silica fume as partial replacement of cement in high performance concrete | |
| KR970001242B1 (en) | Low heat building cement composition | |
| JP4834574B2 (en) | Cement composition for high fluidity concrete and high fluidity concrete composition | |
| Morsy et al. | Effect of elevated temperature on compressive strength of blended cement mortar | |
| US8323401B2 (en) | Compressive strength improvement of cement and gypsum products | |
| CN109553333A (en) | A kind of grinding coagulation soil and preparation method thereof | |
| JP5139777B2 (en) | Sulfate-resistant centrifugal molded concrete composition | |
| US20070256604A1 (en) | Mortar Compositions with Base on Ultra-Fine Clinker, Refined Sand and Chemical Additives | |
| Türkmen et al. | Several properties of mineral admixtured lightweight mortars at elevated temperatures | |
| El-Didamony et al. | Influence of delayed addition time of sodium sulfanilate phenol formaldehyde condensate on the hydration characteristics of sulfate resisting cement pastes containing silica fume | |
| Thomas et al. | Equivalent performance with half the clinker content using PLC and SCM | |
| CN111635157A (en) | Concrete admixture, preparation method thereof and concrete added with concrete admixture | |
| KR100908675B1 (en) | Concrete composition for revealing high early strength | |
| Oluborode et al. | Self-compacting concrete: strength evaluation of corn cob ash in a blended portland cement | |
| JP2020011871A (en) | Concrete having durability | |
| JP4877892B2 (en) | Cement admixture, cement composition, and high fluidity concrete using the same | |
| Mrema et al. | Achieving high strength/high performance concrete from coral-limestone aggregates using ordinary Portland cement, fly ash and superplasticizer | |
| Memis et al. | Some durability properties of alkali activated materials (AAM) produced with ceramic powder and micro calcite | |
| KR20030080270A (en) | concrete in contained copper slag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200908 |