CN114956700A - Concrete based on volcanic cinders and volcanic ash admixture and preparation method thereof - Google Patents
Concrete based on volcanic cinders and volcanic ash admixture and preparation method thereof Download PDFInfo
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- CN114956700A CN114956700A CN202210525686.0A CN202210525686A CN114956700A CN 114956700 A CN114956700 A CN 114956700A CN 202210525686 A CN202210525686 A CN 202210525686A CN 114956700 A CN114956700 A CN 114956700A
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- volcanic
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- volcanic ash
- cinders
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Classifications
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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
- 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
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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
- C04B2111/00017—Aspects relating to the protection of the environment
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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
- 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
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- 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
Abstract
The invention discloses a concrete based on volcanic cinders and volcanic ash admixture, which is characterized by comprising the following raw materials in parts by weight: 4.3-7.0 parts of cement, 11-13 parts of sand, 14.4-17.1 parts of stones, 1.8-5.4 parts of volcanic rocks, 0.8-2.3 parts of volcanic ash and 0.04-0.07 part of water reducing agent. The invention designs a concrete based on volcanic cinders and volcanic ash admixture and a preparation method thereof, the scheme is that volcanic rocks and volcanic ash are added into common concrete in a certain proportion, the lightweight high-strength characteristic of the volcanic rocks can effectively reduce the weight of the concrete, and the weight and the strength of the concrete can be adjusted by replacing common broken stone aggregate in different degrees; the volcanic ash can improve the working performance of the concrete and can perform secondary hydration reaction with hydration products to improve the later strength of the concrete; the method can greatly reduce the preparation cost of the concrete, has important significance for optimizing the cost, improving the benefit and protecting the environment, and simultaneously has positive effects on reasonable allocation and green sustainable development of mineral resources in China.
Description
Technical Field
The invention belongs to the technical field of civil engineering, and particularly relates to a concrete based on volcanic cinders and a volcanic ash admixture and a preparation method thereof.
Background
The concrete is mainly formed by mixing water, a cementing material, aggregate and an additive according to a certain proportion. With the continuous improvement of the economic level of China, the infrastructure construction of China is improved, the demand on concrete materials is increased, and the quality requirement on concrete is increased. The vesuvianite can be used as aggregate for preparing concrete, the weight of the concrete can be effectively reduced due to the characteristics of light weight and high strength, the vesuvianite can replace common broken stone aggregate in different degrees, the weight and the strength of the concrete can be adjusted, and more various concrete use requirements can be met.
The mineral admixture is used as a powder material which takes one or more oxides of aluminum, silicon, calcium and the like as main components, has certain fineness and can improve the performance of concrete when being doped into the concrete, and can show the effects of appearance effect, filling effect, micro-aggregate effect, volcanic ash effect and the like in different degrees according to the difference of the main components of the mineral admixture. Researches show that the volcanic ash as an active mineral admixture has certain volcanic ash effect and filling effect, can also improve the working performance of concrete, and can perform secondary hydration reaction with hydration products to improve the later strength of the concrete.
The volcanic rock and volcanic ash are added into the concrete, so that the performance of the concrete can be improved, and the method has important significance for optimizing cost, improving benefit and protecting environment. The resources related to the volcanic rocks are abundant in most places in China, the consumption of concrete in China is still huge, the resource utilization of the volcanic rocks and the volcanic ash can effectively reduce the use of natural aggregates and cement, the preparation cost of the concrete can be greatly reduced, and the method has a positive effect on the reasonable allocation and the green sustainable development of mineral resources in China.
Accordingly, proposed herein is a concrete based on volcanic cinders and a pozzolanic admixture and a method for preparing the same.
Disclosure of Invention
In order to solve the technical problems, the invention designs the concrete based on the volcanic cinders and the volcanic ash admixture and the preparation method thereof, according to the scheme, the volcanic rocks and the volcanic ash are added into the common concrete according to a certain proportion, the light weight and high strength of the volcanic rocks can effectively reduce the weight of the concrete, and the weight and the strength of the concrete can be adjusted by replacing common gravel aggregate in different degrees; the volcanic ash can improve the working performance of the concrete and can perform secondary hydration reaction with hydration products to improve the later strength of the concrete; the preparation cost of the concrete can be greatly reduced.
In order to achieve the technical effects, the invention is realized by the following technical scheme: the concrete based on the volcanic cinders and the volcanic ash admixture is characterized by comprising the following raw materials in parts by weight:
4.3-7.0 parts of cement, 11-13 parts of sand, 14.4-17.1 parts of stones, 1.8-5.4 parts of volcanic rocks, 0.8-2.3 parts of volcanic ash and 0.04-0.07 part of water reducing agent.
The concrete based on the volcanic cinders and the volcanic ash admixture is characterized by comprising the following raw materials in parts by weight:
5.6 parts of cement, 12 parts of sand, 15.7 parts of pebbles, 3.6 parts of volcanic rocks, 1.8 parts of volcanic ash and 0.06 part of water reducing agent.
Furthermore, the sand is natural river sand, medium sand and sand in a region II, and the mass percent of the mud content is less than or equal to 3.0 percent; the stones are continuous size fraction crushed stones with the particle size of 5-20, and the mud content of the stones is less than or equal to 1.0% by mass; the vesuvianite is continuous grain-size vesuvianite with the grain diameter of 5-20, and the mud content of the vesuvianite is less than or equal to 2.0 percent by mass; the volcanic ash is powder obtained by crushing and grinding the volcanic rocks, and the 45-micron screen residue weight percentage of the volcanic ash is 7.1 percent; the 80 mu m sieve residue weight percentage is 1.2 percent; the water reducing agent is a naphthalene water reducing agent, and the water reducing rate of the water reducing agent is 20 +/-2%.
Another object of the present invention is to provide a method for preparing a concrete based on volcanic cinders and a volcanic ash admixture, which comprises the following steps:
(1) uniformly stirring the stones, the sand, the cement, the volcanic ash and the powdery solid water reducing agent in a forced concrete stirrer for 1 min;
(2) then, adding water and continuing stirring for 1 min;
(3) adding the pre-wetted volcanic rock, and continuing stirring for 1min until the concrete is completely stirred;
(4) pouring the concrete into a mold, demolding after 24 hours, and continuously curing the demolded concrete to a proper age under standard conditions to obtain the concrete.
The invention has the beneficial effects that:
the invention designs a concrete based on volcanic cinders and volcanic ash admixture and a preparation method thereof, the scheme is that volcanic rocks and volcanic ash are added into common concrete in a certain proportion, the lightweight high-strength characteristic of the volcanic rocks can effectively reduce the weight of the concrete, and the weight and the strength of the concrete can be adjusted by replacing common broken stone aggregate in different degrees; the volcanic ash can improve the working performance of the concrete and can perform secondary hydration reaction with hydration products to improve the later strength of the concrete; the method can greatly reduce the preparation cost of the concrete, has important significance for optimizing the cost, improving the benefit and protecting the environment, and simultaneously has positive effects on reasonable allocation and green sustainable development of mineral resources in China.
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.
Example 1
The concrete based on the volcanic cinders and the volcanic ash admixture is characterized by comprising the following raw materials in parts by weight:
5.6 parts of cement, 12 parts of sand, 15.7 parts of pebbles, 3.6 parts of volcanic rocks, 1.8 parts of volcanic ash and 0.06 part of water reducing agent.
The sand is natural river sand, medium sand and sand in area II, and the mass percent of mud content is less than or equal to 3.0 percent; the stones are continuous size fraction crushed stones with the particle size of 5-20, and the mud content of the stones is less than or equal to 1.0% by mass; the vesuvianite is continuous grain-size vesuvianite with the grain diameter of 5-20, and the mud content of the vesuvianite is less than or equal to 2.0 percent by mass; the volcanic ash is powder obtained by crushing and grinding the volcanic rocks, and the 45-micron screen residue weight percentage of the volcanic ash is 7.1 percent; the 80 mu m sieve residue weight percentage is 1.2 percent; the water reducing agent is a naphthalene water reducing agent, and the water reducing rate of the water reducing agent is 20 +/-2%;
a preparation method of concrete based on volcanic cinders and volcanic ash admixtures comprises the following steps:
(1) uniformly stirring the stones, the sand, the cement, the volcanic ash and the powdery solid water reducing agent in a forced concrete stirrer for 1 min;
(2) then, adding water and continuously stirring for 1 min;
(3) adding the pre-wetted volcanic rock, and continuing stirring for 1min until the concrete is completely stirred;
(4) pouring the concrete into a mold, demolding after 24 hours, and continuously curing the demolded concrete to a proper age under standard conditions to obtain the concrete.
Example 2
The product of example 1 was tested for performance: the concrete has the strength grade of C40, the slump of 170mm, the compressive strength of 45.2MPa and the breaking strength of 16.8 MPa.
Example 3
The invention designs a concrete based on volcanic cinders and volcanic ash admixture and a preparation method thereof, the scheme is that volcanic rocks and volcanic ash are added into common concrete in a certain proportion, the lightweight high-strength characteristic of the volcanic rocks can effectively reduce the weight of the concrete, and the weight and the strength of the concrete can be adjusted by replacing common broken stone aggregate in different degrees; the volcanic ash can improve the working performance of the concrete and can perform secondary hydration reaction with hydration products to improve the later strength of the concrete; the method can greatly reduce the preparation cost of the concrete, has important significance for optimizing the cost, improving the benefit and protecting the environment, and simultaneously has positive effects on reasonable allocation and green sustainable development of mineral resources in China.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. The concrete based on the volcanic cinders and the volcanic ash admixture is characterized by comprising the following raw materials in parts by weight:
4.3-7.0 parts of cement, 11-13 parts of sand, 14.4-17.1 parts of stones, 1.8-5.4 parts of volcanic rocks, 0.8-2.3 parts of volcanic ash and 0.04-0.07 part of water reducing agent.
2. The volcanic cinders and volcanic ash admixture based concrete as claimed in claim 1, wherein the raw materials comprise, in parts by weight:
5.6 parts of cement, 12 parts of sand, 15.7 parts of pebbles, 3.6 parts of volcanic rocks, 1.8 parts of volcanic ash and 0.06 part of water reducing agent.
3. The volcanic cinders and volcanic ash admixture based concrete as claimed in claim 1, wherein: the sand is natural river sand, medium sand and sand in area II, and the mass percent of mud content is less than or equal to 3.0 percent; the stones are continuous size fraction crushed stones with the particle size of 5-20, and the mud content of the stones is less than or equal to 1.0% by mass; the vesuvianite is continuous grain-size vesuvianite with the grain diameter of 5-20, and the mud content of the vesuvianite is less than or equal to 2.0 percent by mass; the volcanic ash is powder obtained by crushing and grinding the volcanic rocks, and the 45-micron screen residue weight percentage of the volcanic ash is 7.1 percent; the 80 mu m sieve residue weight percentage is 1.2 percent; the water reducing agent is a naphthalene water reducing agent, and the water reducing rate of the water reducing agent is 20 +/-2%.
4. A preparation method of concrete based on volcanic cinders and volcanic ash admixtures is characterized by comprising the following steps:
(1) uniformly stirring the stones, the sand, the cement, the volcanic ash and the powdery solid water reducing agent in a forced concrete mixer for 1 min;
(2) then, adding water and continuing stirring for 1 min;
(3) adding the pre-wetted volcanic rock, and continuing stirring for 1min until the concrete is completely stirred;
(4) pouring the concrete into a mold, demolding after 24 hours, and continuously curing the demolded concrete under standard conditions to a proper age to obtain the concrete.
5. The volcanic cinders and volcanic ash admixture based concrete as claimed in any one of claims 1 to 3, which discloses an application of the volcanic cinders and volcanic ash admixture based concrete in the technical field of civil engineering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210525686.0A CN114956700A (en) | 2022-05-16 | 2022-05-16 | Concrete based on volcanic cinders and volcanic ash admixture and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210525686.0A CN114956700A (en) | 2022-05-16 | 2022-05-16 | Concrete based on volcanic cinders and volcanic ash admixture and preparation method thereof |
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| CN114956700A true CN114956700A (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210525686.0A Pending CN114956700A (en) | 2022-05-16 | 2022-05-16 | Concrete based on volcanic cinders and volcanic ash admixture and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002242107A (en) * | 2001-02-15 | 2002-08-28 | Tokyo Yogyo Co Ltd | Concrete block utilizing volcanic ash |
| CN107445558A (en) * | 2017-09-11 | 2017-12-08 | 中国建筑科学研究院 | Volcanic slag lightweight aggregate concrete |
| CN109095832A (en) * | 2017-07-13 | 2018-12-28 | 中交武汉港湾工程设计研究院有限公司 | A kind of high-performance volcanic ash machine-made sand concrete |
| CN109133783A (en) * | 2018-08-30 | 2019-01-04 | 河北建筑工程学院 | A kind of slag micropowder float stone lightweight aggregate concrete and preparation method thereof |
| CN109437653A (en) * | 2018-11-16 | 2019-03-08 | 中国路桥工程有限责任公司 | A kind of scoria mineral admixture |
| CN110963754A (en) * | 2020-01-10 | 2020-04-07 | 福建省兴岩建筑科技有限公司 | Lightweight aggregate concrete composite material |
-
2022
- 2022-05-16 CN CN202210525686.0A patent/CN114956700A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002242107A (en) * | 2001-02-15 | 2002-08-28 | Tokyo Yogyo Co Ltd | Concrete block utilizing volcanic ash |
| CN109095832A (en) * | 2017-07-13 | 2018-12-28 | 中交武汉港湾工程设计研究院有限公司 | A kind of high-performance volcanic ash machine-made sand concrete |
| CN107445558A (en) * | 2017-09-11 | 2017-12-08 | 中国建筑科学研究院 | Volcanic slag lightweight aggregate concrete |
| CN109133783A (en) * | 2018-08-30 | 2019-01-04 | 河北建筑工程学院 | A kind of slag micropowder float stone lightweight aggregate concrete and preparation method thereof |
| CN109437653A (en) * | 2018-11-16 | 2019-03-08 | 中国路桥工程有限责任公司 | A kind of scoria mineral admixture |
| CN110963754A (en) * | 2020-01-10 | 2020-04-07 | 福建省兴岩建筑科技有限公司 | Lightweight aggregate concrete composite material |
Non-Patent Citations (1)
| Title |
|---|
| 杨东林等: "火山渣轻骨料混凝土在国内外的研究应用", 《建材世界》 * |
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