CN112125587A - Water seepage resistant concrete and preparation method thereof - Google Patents
Water seepage resistant concrete and preparation method thereof Download PDFInfo
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- CN112125587A CN112125587A CN202011014411.8A CN202011014411A CN112125587A CN 112125587 A CN112125587 A CN 112125587A CN 202011014411 A CN202011014411 A CN 202011014411A CN 112125587 A CN112125587 A CN 112125587A
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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
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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
- 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
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- 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 provides a water seepage resistant concrete and a preparation method thereof, wherein the water seepage resistant concrete comprises the following raw materials in parts by weight: 40-60 parts of cement, 30-50 parts of stone, 35-64 parts of organic bentonite, 33-57 parts of fly ash, 11-33 parts of calcium-based lubricating grease, 8-12 parts of tobacco stems, 10-22 parts of indocalamus leaf fragments and the balance of water.
Description
Technical Field
The invention relates to the field of building materials, in particular to a water seepage resistant concrete and a preparation method thereof.
Background
The concrete is prepared by taking cement as a main cementing material, adding a chemical additive and an admixture, mixing the materials in proportion, uniformly stirring, compacting, forming and hardening, and has good mechanical property, economy and environmental adaptability.
Disclosure of Invention
In view of the above, the present invention provides a water-seepage-resistant concrete and a preparation method thereof, which solve the above problems.
The technical scheme of the invention is realized as follows: a water-impervious concrete: the feed comprises the following raw materials in parts by weight: 40-60 parts of cement, 30-50 parts of stone, 35-64 parts of organic bentonite, 33-57 parts of fly ash, 11-33 parts of calcium-based lubricating grease, 8-12 parts of tobacco stems, 10-22 parts of indocalamus leaf fragments and the balance of water.
Preferably, the water seepage resistant concrete comprises the following raw materials in parts by weight: 50 parts of cement, 40 parts of stone material, 44 parts of organic bentonite, 42 parts of fly ash, 24 parts of calcium-based lubricating grease, 10 parts of tobacco stems, 16 parts of indocalamus leaf fragments and the balance of water.
Further, the preparation method of the anti-seepage concrete comprises the following steps:
s1, adding the calcium-based lubricating grease, the tobacco stems and the indocalamus leaf fragments into a high-boiling-point solvent, stirring and polymerizing at 80-100 ℃ for 3-8 hours in an inert gas atmosphere, and cooling to room temperature after the reaction is finished for later use;
s2, heating the mixed material of the S1 to 120-150 ℃ again, adding cement, stone, organic bentonite, fly ash and water, and stirring and mixing at a high speed for 15-30 min;
and S3, granulating the mixture obtained after the mixing of the S2 in a double-screw extruder, and carrying out vacuum cooling and shaping at the vacuum degree of 0.1-0.8 MPa and the water temperature of 10-28 ℃ to obtain the anti-seepage concrete.
Preferably, the inert gas is one of helium, neon and argon;
preferably, the flow rate of the inert gas is 2-10 Nm/s;
preferably, the high-speed stirring speed in the step S2 is 500-800 rpm, and the stirring temperature is 130-180 ℃;
preferably, the extruder extrusion temperature in the step S3 is: the feeding section is 120-138 ℃, and the compression section is 160-180 ℃.
Compared with the prior art, the invention has the beneficial effects that:
the raw materials of the invention are scientifically selected and reasonably proportioned, the added tobacco stems and indocalamus leaf fragments can be immediately hydrated with cement, fly ash and other powder to form hydrated small crystals, new mineral crystallinity is generated, the mineral structure plays a role of crystal nucleus, the hydrated mineral structure of concrete is promoted to be reasonably and uniformly distributed, the quality is increased, the phenomena of surface bubbles and layering in the concrete preparation are avoided, and a waterproof layer is formed in the hydrated mineral structure, so that the permeability resistance, high strength and wear resistance can be realized.
In addition, the mixing speed and temperature of the mixed materials are controlled, the prepared concrete can uniformly form uniform dispersion points in the concrete by the raw materials under specific process parameters, and the raw materials can uniformly and compactly fill micropores of the concrete when the concrete is hydrated, so that the strength and the water impermeability of the concrete are obviously improved.
Detailed Description
In order to better understand the technical content of the invention, specific examples are provided below to further illustrate the invention.
The experimental methods used in the examples of the present invention are all conventional methods unless otherwise specified.
The materials, reagents and the like used in the examples of the present invention can be obtained commercially without specific description.
Example 1
A water-impervious concrete: the feed comprises the following raw materials in parts by weight: 40 parts of cement, 30 parts of stone material, 35 parts of organic bentonite, 33 parts of fly ash, 11 parts of calcium-based lubricating grease, 8 parts of tobacco stems, 10 parts of indocalamus leaf fragments and the balance of water.
Example 2
A water-impervious concrete: the feed comprises the following raw materials in parts by weight: 60 parts of cement, 50 parts of stone, 64 parts of organic bentonite, 57 parts of fly ash, 33 parts of calcium-based lubricating grease, 12 parts of tobacco stems, 22 parts of indocalamus leaf fragments and the balance of water.
Example 3
The water seepage resistant concrete comprises the following raw materials in parts by weight: 50 parts of cement, 40 parts of stone material, 44 parts of organic bentonite, 42 parts of fly ash, 24 parts of calcium-based lubricating grease, 10 parts of tobacco stems, 16 parts of indocalamus leaf fragments and the balance of water.
The above examples 1 to 3 were prepared using the following preparation method:
s1, adding the calcium-based lubricating grease, the tobacco stems and the indocalamus leaf fragments into a high-boiling-point solvent, stirring and polymerizing at 90 ℃ for 5 hours in a helium atmosphere with the flow of 6Nm/S, and cooling to room temperature after the reaction is finished for later use;
s2, heating the mixed material of the S1 to 140 ℃ again, adding cement, stone, organic bentonite, fly ash and water, and stirring and mixing at a high speed of 700rpm and a temperature of 150 ℃ for 22 min;
s3, granulating the mixture obtained by mixing the S2 in a double-screw extruder, wherein the extrusion temperature of the extruder is as follows: the feed section is 130 ℃, the compression section is 170 ℃, the vacuum cooling and shaping are carried out under the conditions that the vacuum degree is 0.5MPa and the water temperature is 20 ℃, and the water seepage resistant concrete is obtained.
Example 4
This example differs from example 3 in that a water-impervious concrete was prepared as follows:
s1, adding the calcium-based lubricating grease, the tobacco stems and the indocalamus leaf fragments into a high-boiling-point solvent, stirring and polymerizing at 80 ℃ for 3 hours in a helium atmosphere with the flow of 2Nm/S, and cooling to room temperature for later use after the reaction is finished;
s2, heating the mixed material of the S1 to 120 ℃ again, adding cement, stone, organic bentonite, fly ash and water, and stirring and mixing at a high speed of 500rpm and a temperature of 130 ℃ for 15 min;
s3, granulating the mixture obtained by mixing the S2 in a double-screw extruder, wherein the extrusion temperature of the extruder is as follows: the feed section is 120 ℃, the compression section is 160 ℃, and the concrete is cooled and shaped in vacuum at the vacuum degree of 0.1MPa and the water temperature of 10 ℃ to obtain the anti-seepage concrete.
Example 5
This example differs from example 3 in that a water-impervious concrete was prepared as follows:
s1, adding the calcium-based lubricating grease, the tobacco stems and the indocalamus leaf fragments into a high-boiling-point solvent, stirring and polymerizing for 8 hours at 100 ℃ in a helium atmosphere with the flow of 10Nm/S, and cooling to room temperature after the reaction is finished for later use;
s2, heating the mixed material of the S1 to 150 ℃ again, adding cement, stone, organic bentonite, fly ash and water, and stirring and mixing at a high speed of 800rpm and a temperature of 180 ℃ for 30 min;
s3, granulating the mixture obtained by mixing the S2 in a double-screw extruder, wherein the extrusion temperature of the extruder is as follows: the feed section is 138 ℃, the compression section is 180 ℃, and the concrete is cooled and shaped in vacuum at the vacuum degree of 0.8MPa and the water temperature of 28 ℃ to obtain the anti-seepage concrete.
Example 6
This example is different from example 3 in that the stirring rate in the step of S2 was 900rpm and the stirring temperature was 100 ℃.
Comparative example 1
The difference between the comparative example and the example 3 is that the water seepage resistant concrete comprises the following raw materials in parts by weight: 30 parts of cement, 60 parts of stone material, 70 parts of organic bentonite, 30 parts of fly ash, 10 parts of calcium-based lubricating grease, 20 parts of tobacco stems and 25 parts of indocalamus leaf fragments.
Comparative example 2
The comparative example is different from example 3 in that no tobacco stems are added to the raw material of a water impervious concrete.
Comparative example 3
The comparative example is different from example 3 in that Indocalamus leaf fragments were not added to the raw material of a water-impervious concrete.
First, performance test
The concrete prepared in the examples 1 to 6 and the comparative examples 1 to 3 is subjected to compression resistance and water permeability resistance tests, the compression strength is tested according to GB/T17671-1999 standard, the water permeability resistance is tested according to JGJ/T70-2009, and the test results are as follows:
the concrete has higher compressive strength, flexural strength and permeation resistance pressure and excellent corrosion resistance, the raw materials are scientifically proportioned, the permeation resistance pressure of the concrete is obviously improved, and other properties of the concrete are improved at the same time, and compared with the comparative examples 1-3, the raw materials added in the concrete can be scientifically proportioned with powder materials such as cement, fly ash and the like, can be immediately hydrated to form hydrated small crystals, generate new mineral crystallinity, enable a mineral structure to play a crystal nucleus role, and promote the reasonable and uniform distribution and quality increase of the hydrated mineral structure of the concrete, so that the performances of permeability resistance, high strength and wear resistance can be realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A water seepage resistant concrete is characterized in that: the feed comprises the following raw materials in parts by weight: 40-60 parts of cement, 30-50 parts of stone, 35-64 parts of organic bentonite, 33-57 parts of fly ash, 11-33 parts of calcium-based lubricating grease, 8-12 parts of tobacco stems, 10-22 parts of indocalamus leaf fragments and the balance of water.
2. The water-impervious concrete of claim 1, wherein: the feed comprises the following raw materials in parts by weight: 50 parts of cement, 40 parts of stone material, 44 parts of organic bentonite, 42 parts of fly ash, 24 parts of calcium-based lubricating grease, 10 parts of tobacco stems, 16 parts of indocalamus leaf fragments and the balance of water.
3. The method of claim 1, wherein the method comprises the steps of: the method comprises the following steps:
s1, adding the calcium-based lubricating grease, the tobacco stems and the indocalamus leaf fragments into a high-boiling-point solvent, stirring and polymerizing at 80-100 ℃ for 3-8 hours in an inert gas atmosphere, and cooling to room temperature after the reaction is finished for later use;
s2, heating the mixed material of the S1 to 120-150 ℃ again, adding cement, stone, organic bentonite, fly ash and water, and stirring and mixing at a high speed for 15-30 min;
and S3, granulating the mixture obtained after the mixing of the S2 in a double-screw extruder, and carrying out vacuum cooling and shaping at the vacuum degree of 0.1-0.8 MPa and the water temperature of 10-28 ℃ to obtain the anti-seepage concrete.
4. The water-impervious concrete of claim 3, wherein: the inert gas is one of helium, neon and argon.
5. The water-impervious concrete of claim 3, wherein: the flow rate of the inert gas is 2-10 Nm/s.
6. The water-impervious concrete of claim 3, wherein: in the step S2, the high-speed stirring speed is 500-800 rpm, and the stirring temperature is 130-180 ℃.
7. The water-impervious concrete of claim 3, wherein: the extrusion temperature of the extruder in the step S3 is as follows: the feeding section is 120-138 ℃, and the compression section is 160-180 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011014411.8A CN112125587A (en) | 2020-09-24 | 2020-09-24 | Water seepage resistant concrete and preparation method thereof |
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| CN202011014411.8A CN112125587A (en) | 2020-09-24 | 2020-09-24 | Water seepage resistant concrete and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105016665A (en) * | 2015-08-03 | 2015-11-04 | 重庆市十八土鑫诚灌浆防水工程有限公司 | Seepage-proofing leaking-stopping material and preparation method thereof |
| CN106830774A (en) * | 2016-12-01 | 2017-06-13 | 芜湖浩权建筑工程有限公司 | A kind of high-performance anti-crack concrete and preparation method thereof |
-
2020
- 2020-09-24 CN CN202011014411.8A patent/CN112125587A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105016665A (en) * | 2015-08-03 | 2015-11-04 | 重庆市十八土鑫诚灌浆防水工程有限公司 | Seepage-proofing leaking-stopping material and preparation method thereof |
| CN106830774A (en) * | 2016-12-01 | 2017-06-13 | 芜湖浩权建筑工程有限公司 | A kind of high-performance anti-crack concrete and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 王兴国: "《油料科学原理 第2版》", 31 August 2017, 中国轻工业出版社 * |
| 胡海玲等: "《汽车运行材料》", 30 September 2011, 中国铁道出版社 * |
| 蔡再生: "《染整概论》", 30 April 2020, 中国纺织出版社 * |
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