CN110981367A - Ecological concrete, manufacturing method and maintenance method - Google Patents
Ecological concrete, manufacturing method and maintenance method Download PDFInfo
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- CN110981367A CN110981367A CN201911378235.3A CN201911378235A CN110981367A CN 110981367 A CN110981367 A CN 110981367A CN 201911378235 A CN201911378235 A CN 201911378235A CN 110981367 A CN110981367 A CN 110981367A
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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
- 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
- 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
- C04B40/02—Selection of the hardening environment
- C04B40/0277—Hardening promoted by using additional water, e.g. by spraying water on the green concrete element
-
- 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
- C04B40/04—Preventing evaporation of the mixing water
-
- 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
- C04B2111/00008—Obtaining or using nanotechnology related 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
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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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- 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)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses ecological concrete, a manufacturing method and a maintenance method, which belong to the technical field of environment-friendly building materials and comprise the following components of 10-15 parts of P.O42.5 cement, 3-6 parts of secondary fly ash, 1-3 parts of superfine silica fume, 55-70 parts of renewable aggregate, 5-8 parts of ceramsite, 1-3 parts of perlite, 1-3 parts of compressed straw, 1-2 parts of natural inorganic nano material and 0.5-1 part of high-performance water reducing agent. The ecological concrete integrating water permeation and plant growth is provided by utilizing waste concrete, waste sand and waste clay bricks, the restoration and regulation effects on small ecological rings can be achieved, the relation between concrete and ecology is balanced, the ecological concrete with excellent performances is provided, the contradiction between large porosity and strength is solved, and the purposes of ecological balance, garbage reduction and environment protection are achieved.
Description
Technical Field
The invention belongs to the technical field of environment-friendly building materials, and particularly relates to ecological concrete, a manufacturing method and a maintenance method.
Background
At present, a large amount of traditional concrete is used in cities, rivers and channels, but the traditional concrete lacks of air permeability and water permeability, the temperature and humidity capacity of air conditioning is poor, rainwater cannot permeate into the ground for a long time, so that the underground water level of the cities is reduced, the growth of surface plants and the reduction of greening area are influenced, a biological chain is cut off, and an ecological system is seriously damaged. In order to realize the aim of sustainable development, the load of the concrete on the environment is controlled to be minimum, and the concrete plays a corresponding role in coordinating and improving the ecological environment, and is the development direction of novel concrete.
With the continuous improvement of living standard and the continuous enhancement of environmental protection consciousness of people, ecological environment factors must be considered in the research, production and application of concrete materials.
However, most of the existing concrete only realizes the function of water permeation or plant growth singly, and the utilization of wastes is not sufficient. Therefore, the waste is applied to the concrete while the water permeation and the plant growth are realized, so that not only is the ecological balance realized, but also the garbage is reduced, and the environment is protected.
Disclosure of Invention
The invention aims to: in order to overcome the defects of the existing concrete technology, the invention aims to develop a technology for constructing a harmonious and comfortable environment for human beings by using waste materials and changing the waste materials into valuable materials on the basis of achieving pervious concrete and plant-growing concrete, providing necessary conditions for plant growth, playing a role in recovering and regulating a small ecological ring, balancing the relation between concrete and ecology and constructing the harmonious and comfortable environment for the human beings.
The technical scheme adopted by the invention is as follows:
the ecological concrete comprises 10-15 parts of P.O42.5 cement, 3-6 parts of secondary fly ash, 1-3 parts of superfine silica fume, 55-70 parts of renewable aggregate, 5-8 parts of ceramsite, 1-3 parts of perlite, 1-3 parts of compressed straw, 1-2 parts of natural inorganic nano material and 0.5-1 part of high-performance water reducing agent.
Further preferred in accordance with the present invention, the renewable aggregate comprises: the diameter of the renewable aggregate is 20-30 mm.
A manufacturing method of ecological concrete comprises the following steps: when feeding, firstly adding the cement, the admixture, the coarse aggregate, the ceramsite and the perlite which are prepared from the components of the claim 1, then adding half of the water, and stirring for 30 s; then adding additives (additives, nano materials and the like) and stirring for 60 s; and finally, adding the residual water and the compressed straws, stirring for 120s, and discharging.
In a further preferred embodiment of the present invention, the admixture comprises secondary fly ash, ultra-fine silica fume and compressed straw.
A maintenance method of ecological concrete comprises the following steps:
the first step is as follows: after the concrete test block prepared according to the claim 3 is formed, covering the concrete test block with a plastic film to prevent moisture evaporation, and placing the concrete test block in a curing room with the temperature of (20 +/-2) ℃ and the humidity of more than or equal to 95 percent;
the second step is that: placing for 24h, removing the mold, and continuing curing in a curing room after removing the mold;
the third step: and (3) watering and maintaining, wherein covering and maintaining are adopted after the pervious concrete is constructed, watering and moisturizing are carried out for at least 7 days, and the surface pores of the concrete are prevented from being polluted by silt during maintenance.
According to a further preferred embodiment of the present invention, the daily maintenance of the concrete test block includes daily cleaning and cleaning of the blocked pores.
According to the further optimization of the invention, the concrete test block can be cleaned and blocked by adopting methods such as blower blowing, high-pressure flushing or vacuum cleaning and the like.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the ecological concrete provided by the invention integrates water permeability and plant growth, can play a role in recovering and regulating a small ecological ring, balances the relation between concrete and ecology, provides ecological concrete with excellent performances through the ecological concrete mix proportion design, and solves the contradiction between large porosity and strength.
2. The waste materials such as fly ash, silica fume, renewable aggregate and the like are used, so that the waste materials are changed into valuable materials, necessary conditions are provided for plant growth, and the problem of harmonious symbiosis between people and nature is solved.
3. Porous materials such as ceramsite, perlite and the like are used for absorbing water and nutrition under the condition of sufficient water quantity, releasing water during drought, and playing a role in water retention to provide necessary growth conditions for plants.
4. The compressed straws are used, so that space is provided for plant growth in the ecological concrete, the compressed straws can be degraded into fertilizers required by plant growth along with the time, and necessary growth conditions are further provided for plants by combining the entrance of silt in the process.
5. The performance of the material is improved by adding a natural nano material. The material has good microstructure characteristics, and the scanning electron microscope shows that the structure of the material is chain-shaped, so that the microstructure of the interface of the cement-based material can be effectively changed, and the compactness and the durability of the cement-based material are improved. Meanwhile, the material has good cohesiveness and adsorptivity, can reduce the surface tension of water on a concrete interface, and has very good water retention performance.
6. The performance of the cement-based material is further improved by adding superfine active mineral materials such as fly ash, silica fume and the like.
7. Through the addition of the ultrafine powder, the particle size is small, and the ultrafine powder has activity, so that the ultrafine powder can be filled in gaps of a set cement material, can further react with hydration products, improves the compactness of cement, and reduces the alkalinity of ecological concrete, so that the durability and the mechanical property of the set cement are improved, the condition of plant growth is achieved, and the provided ecological concrete can provide a more suitable growth environment for plant growth by using the technology, and the ecological environment is improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting, i.e., the described embodiments are merely a few embodiments of the invention, rather than all embodiments, and that all of the features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any combination, except combinations of mutually exclusive features and/or steps.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The present invention will be described in detail below with reference to the accompanying drawings.
An ecological concrete comprises the following components of 10-15 parts of P.O42.5 cement, 3-6 parts of secondary fly ash, 1-3 parts of superfine silica fume, 55-70 parts of renewable aggregate, 5-8 parts of ceramsite, 1-3 parts of perlite, 1-3 parts of compressed straw, 1-2 parts of natural inorganic nano material and 0.5-1 part of high-performance water reducing agent;
the renewable aggregate comprises: the diameter of the renewable aggregate is 20-30 mm.
The first embodiment is as follows:
10 parts of P.O42.5 cement, 3 parts of secondary fly ash, 1 part of superfine silica fume, 55 parts of renewable aggregate with the nominal diameter of 20, 5 parts of ceramsite, 1 part of perlite, 1 part of compressed straw, 1 part of natural inorganic nano material and 0.5 part of high-performance water reducing agent;
the results of the experiments are shown in the following table:
ecological concrete test results
The second embodiment:
15 parts of P.O42.5 cement, 6 parts of secondary fly ash, 3 parts of superfine silica fume, 70 parts of renewable aggregate with the nominal diameter of 30, 8 parts of ceramsite, 3 parts of perlite, 3 parts of compressed straw, 2 parts of natural inorganic nano material and 1 part of high-performance water reducing agent;
ecological concrete test results
Example 3
13 parts of P.O42.5 cement, 5 parts of secondary fly ash, 2 parts of superfine silica fume, 65 parts of renewable aggregate with the nominal diameter of 20-30, 6 parts of ceramsite, 2 parts of perlite, 2 parts of compressed straw, 1.5 parts of natural inorganic nano material and 0.7 part of high-performance water reducing agent;
ecological concrete test results
The fourth embodiment is as follows: a manufacturing method of ecological concrete comprises the following steps: when feeding, firstly adding the cement, the admixture, the coarse aggregate, the ceramsite and the perlite which are prepared from the components of the claim 1, then adding half of the water, and stirring for 30 s; then adding additives (additives, nano materials and the like) and stirring for 60 s; and finally, adding the residual water and the compressed straws, stirring for 120s, and discharging, wherein the admixture comprises secondary fly ash, superfine silica fume and compressed straws.
The fifth embodiment: a maintenance method of ecological concrete comprises the following steps:
the first step is as follows: after the concrete test block prepared according to the claim 3 is formed, covering the concrete test block with a plastic film to prevent moisture evaporation, and placing the concrete test block in a curing room with the temperature of (20 +/-2) ℃ and the humidity of more than or equal to 95 percent;
the second step is that: placing for 24h, removing the mold, and continuing curing in a curing room after removing the mold;
the third step: and (2) watering and maintaining, adopting covering and maintaining after the pervious concrete construction, watering and moisturizing and maintaining for at least 7 days, preventing the concrete surface pore from being polluted by silt during the maintenance, wherein the daily maintenance of the concrete test block comprises daily cleaning and pore blocking cleaning, and the pore blocking during the concrete test block cleaning can adopt methods such as blower blowing, high-pressure flushing or vacuum cleaning.
The fixed connection, fixed mounting or fixed arrangement mode comprises the existing common technologies, such as bolt fixing, welding, riveting and the like, and all the technologies play a role in fixing without influencing the overall effect of the device.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope and spirit of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure and claims of this application. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (7)
1. The ecological concrete is characterized by comprising the following components of 10-15 parts of P.O42.5 cement, 3-6 parts of secondary fly ash, 1-3 parts of superfine silica fume, 55-70 parts of renewable aggregate, 5-8 parts of ceramsite, 1-3 parts of perlite, 1-3 parts of compressed straw, 1-2 parts of natural inorganic nano material and 0.5-1 part of high-performance water reducing agent.
2. The eco-concrete of claim 1, wherein the renewable aggregate comprises: the diameter of the renewable aggregate is 20-30 mm.
3. The manufacturing method of the ecological concrete is characterized by comprising the following steps: when feeding, firstly adding the cement, the admixture, the coarse aggregate, the ceramsite and the perlite which are prepared from the components of the claim 1, then adding half of the water, and stirring for 30 s; then adding additives (additives, nano materials and the like) and stirring for 60 s; and finally, adding the residual water and the compressed straws, stirring for 120s, and discharging.
4. The method for manufacturing ecological concrete according to claim 3, wherein the admixture comprises secondary fly ash, ultra-fine silica fume and compressed straw.
5. The maintenance method of the ecological concrete is characterized by comprising the following steps:
the first step is as follows: after the concrete test block prepared according to the claim 3 is formed, covering the concrete test block with a plastic film to prevent moisture evaporation, and placing the concrete test block in a curing room with the temperature of (20 +/-2) ℃ and the humidity of more than or equal to 95 percent;
the second step is that: placing for 24h, removing the mold, and continuing curing in a curing room after removing the mold;
the third step: and (3) watering and maintaining, wherein covering and maintaining are adopted after the pervious concrete is constructed, watering and moisturizing are carried out for at least 7 days, and the surface pores of the concrete are prevented from being polluted by silt during maintenance.
6. The method for maintaining ecological concrete according to claim 5, wherein the daily maintenance of the concrete test block comprises daily cleaning and cleaning of blocked pores.
7. The method for maintaining ecological concrete according to claim 5, wherein the concrete test block is cleaned and blocked in the pores by adopting methods such as blower blowing, high-pressure flushing or vacuum cleaning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911378235.3A CN110981367A (en) | 2019-12-27 | 2019-12-27 | Ecological concrete, manufacturing method and maintenance method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911378235.3A CN110981367A (en) | 2019-12-27 | 2019-12-27 | Ecological concrete, manufacturing method and maintenance method |
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| CN110981367A true CN110981367A (en) | 2020-04-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111763056A (en) * | 2020-06-18 | 2020-10-13 | 陕西容大天盛混凝土有限公司 | Recycled concrete and preparation method thereof |
| CN112079609A (en) * | 2020-09-23 | 2020-12-15 | 天津水泥工业设计研究院有限公司 | Low-alkalinity fertilizer efficiency slow-release type ceramsite plant-growing concrete and preparation method thereof |
| CN112745090A (en) * | 2020-12-17 | 2021-05-04 | 甘肃土木工程科学研究院有限公司 | Vegetation concrete |
| CN113149750A (en) * | 2020-12-17 | 2021-07-23 | 甘肃土木工程科学研究院有限公司 | Vegetation concrete plant growth improver |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111763056A (en) * | 2020-06-18 | 2020-10-13 | 陕西容大天盛混凝土有限公司 | Recycled concrete and preparation method thereof |
| CN112079609A (en) * | 2020-09-23 | 2020-12-15 | 天津水泥工业设计研究院有限公司 | Low-alkalinity fertilizer efficiency slow-release type ceramsite plant-growing concrete and preparation method thereof |
| CN112079609B (en) * | 2020-09-23 | 2022-08-23 | 天津水泥工业设计研究院有限公司 | Low-alkalinity fertilizer efficiency slow-release type ceramsite plant-growing concrete and preparation method thereof |
| CN112745090A (en) * | 2020-12-17 | 2021-05-04 | 甘肃土木工程科学研究院有限公司 | Vegetation concrete |
| CN113149750A (en) * | 2020-12-17 | 2021-07-23 | 甘肃土木工程科学研究院有限公司 | Vegetation concrete plant growth improver |
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Application publication date: 20200410 |