CN115304315A - Application method of limestone ultrafine powder in cement concrete - Google Patents
Application method of limestone ultrafine powder in cement concrete Download PDFInfo
- Publication number
- CN115304315A CN115304315A CN202211044316.1A CN202211044316A CN115304315A CN 115304315 A CN115304315 A CN 115304315A CN 202211044316 A CN202211044316 A CN 202211044316A CN 115304315 A CN115304315 A CN 115304315A
- Authority
- CN
- China
- Prior art keywords
- limestone
- concrete
- ultrafine
- ultrafine powder
- 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
- 239000000843 powder Substances 0.000 title claims abstract description 34
- 235000019738 Limestone Nutrition 0.000 title claims abstract description 33
- 239000006028 limestone Substances 0.000 title claims abstract description 33
- 239000004568 cement Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000010881 fly ash Substances 0.000 claims abstract description 15
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002002 slurry Substances 0.000 abstract description 4
- 239000010419 fine particle Substances 0.000 abstract description 2
- 239000011800 void material Substances 0.000 abstract description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction 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
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/26—Carbonates
- C04B14/28—Carbonates of calcium
-
- 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)
- Civil Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses an application method of limestone ultrafine powder in cement concrete. Uniformly mixing limestone ultrafine powder and modified ultrafine fly ash, and applying the mixture to cement concrete, wherein the mass ratio of the limestone ultrafine powder to the modified ultrafine fly ash is (5-7): 2.5-3. According to the invention, through a reasonable adding proportion, limestone powder fine particles are uniformly distributed in a base phase of the cement slurry, so that the micro-aggregate concrete has a micro-aggregate effect, has a good compacting effect, reduces the void volume in the concrete, and fills capillary channels in the slurry, thereby compacting the concrete structure and improving the concrete strength.
Description
Technical Field
The invention relates to the technical field of limestone ultrafine powder, in particular to an application method of limestone ultrafine powder in cement concrete.
Background
Limestone powder is a white powder substance taking calcium carbonate as a main component, is mainly used in the construction industry, is relatively difficult to combine with concrete instead of fly ash and the like, particularly the dosage proportion of the limestone powder and the concrete is difficult to control, and the limestone powder cannot play a role no matter the dosage of the limestone powder is too high or too low, even the strength of the concrete is reduced.
Disclosure of Invention
The invention aims to provide an application method of limestone ultrafine powder in cement concrete, so as to solve the technical problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
the application method of the limestone ultrafine powder in the cement concrete comprises the following steps of uniformly mixing the limestone ultrafine powder and modified ultrafine fly ash, and applying the mixture to the cement concrete, wherein the mass ratio of the limestone ultrafine powder to the modified ultrafine fly ash is (5-7): 2.5-3.
As a further scheme of the invention, the water reducing agent also comprises 1-3% of water reducing agent by mass ratio.
The invention has the beneficial effects that: according to the invention, through a reasonable adding proportion, limestone powder fine particles are uniformly distributed in a base phase of the cement slurry, so that the micro-aggregate concrete has a micro-aggregate effect, has a good compacting effect, reduces the void volume in the concrete, and fills capillary channels in the slurry, thereby compacting the concrete structure and improving the concrete strength.
Detailed Description
The technical solutions in the embodiments of the present invention are 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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
The application method of the limestone ultrafine powder in the cement concrete comprises the following steps of uniformly mixing the limestone ultrafine powder and modified ultrafine fly ash, and applying the mixture to the cement concrete, wherein the mass ratio of the limestone ultrafine powder to the modified ultrafine fly ash is (5): 2.5.
example 2
The application method of the limestone ultrafine powder in the cement concrete comprises the following steps of uniformly mixing the limestone ultrafine powder and modified ultrafine fly ash, and applying the mixture to the cement concrete, wherein the mass ratio of the limestone ultrafine powder to the modified ultrafine fly ash is (5): 3.
example 3
The application method of the limestone ultrafine powder in the cement concrete comprises the following steps of uniformly mixing the limestone ultrafine powder and modified ultrafine fly ash, and applying the mixture to the cement concrete, wherein the mass ratio of the limestone ultrafine powder to the modified ultrafine fly ash is 7: 3.
Example 4
The application method of the limestone ultrafine powder in the cement concrete comprises the following steps of uniformly mixing the limestone ultrafine powder and modified ultrafine fly ash, and applying the mixture to the cement concrete, wherein the mass ratio of the limestone ultrafine powder to the modified ultrafine fly ash is 7: 3, further comprising 1-3% of water reducing agent by mass ratio.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The application method of the limestone ultrafine powder in the cement concrete is characterized in that the limestone ultrafine powder and the modified ultrafine fly ash are uniformly mixed and applied to the cement concrete, and the mass ratio of the limestone ultrafine powder to the modified ultrafine fly ash is (5-7): 2.5-3.
2. An application method of limestone ultrafine powder in cement concrete is characterized by further comprising a water reducing agent with the mass ratio of 1-3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211044316.1A CN115304315A (en) | 2022-08-30 | 2022-08-30 | Application method of limestone ultrafine powder in cement concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211044316.1A CN115304315A (en) | 2022-08-30 | 2022-08-30 | Application method of limestone ultrafine powder in cement concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115304315A true CN115304315A (en) | 2022-11-08 |
Family
ID=83864109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211044316.1A Pending CN115304315A (en) | 2022-08-30 | 2022-08-30 | Application method of limestone ultrafine powder in cement concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115304315A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011195364A (en) * | 2010-03-18 | 2011-10-06 | Mitsubishi Materials Corp | Concrete composition and concrete hardened body |
| CN106396525A (en) * | 2016-09-06 | 2017-02-15 | 中建商品混凝土西安有限公司 | Pump concrete mixed with limestone powder |
-
2022
- 2022-08-30 CN CN202211044316.1A patent/CN115304315A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011195364A (en) * | 2010-03-18 | 2011-10-06 | Mitsubishi Materials Corp | Concrete composition and concrete hardened body |
| CN106396525A (en) * | 2016-09-06 | 2017-02-15 | 中建商品混凝土西安有限公司 | Pump concrete mixed with limestone powder |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20221108 |