CN110451867A - A kind of preparation method of high porosity eco-concrete - Google Patents
A kind of preparation method of high porosity eco-concrete Download PDFInfo
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- CN110451867A CN110451867A CN201910777930.0A CN201910777930A CN110451867A CN 110451867 A CN110451867 A CN 110451867A CN 201910777930 A CN201910777930 A CN 201910777930A CN 110451867 A CN110451867 A CN 110451867A
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- Prior art keywords
- plant
- concrete
- eco
- plant fiber
- high porosity
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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
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00758—Uses not provided for elsewhere in C04B2111/00 for agri-, sylvi- or piscicultural or cattle-breeding applications
-
- 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
- C04B2111/74—Underwater applications
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Artificial Fish Reefs (AREA)
Abstract
The invention discloses a kind of preparation methods of high porosity eco-concrete, comprising the following steps: step 1: by oyster shell, plant fiber and plant fiber skeleton be immersed in plant growth promoter for 24 hours~48h, stored for future use after air-drying；Step 2: cement, water, plant fiber are thrown in agitator according to a certain percentage, are uniformly mixed three by mixing plant, and mixing time is 5~8min, then obtain A material；Step 3: plant growth promoter and concrete performance modifying agent are stirred, and mixing time is 3~5min, obtain B material；Using natural oyster shell as coarse aggregate in the present invention, fine aggregate is not added to improve eco-concrete porosity, plant fiber is as reinforcement material, improve eco-concrete intensity and tension, shear behavior, it is placed in plant fiber skeleton and improves eco-concrete globality, it adds concrete performance modifying agent and adjusts concrete pH value, promote concrete comprehensive performance.
Description
Technical field
The invention belongs to eco-concrete technical fields, and in particular to a kind of preparation side of high porosity eco-concrete
Method.
Background technique
Eco-concrete, which refers to, can be realized normal concrete safeguard function, and be able to achieve ecologic planting, be a kind of energy general
The new material that safeguard function and ecological restoration function combine, eco-concrete main body is with certain pore structure and by force
Degree penetrates for the growth of plant first is that having more interconnected pore and provides place, provide habitat for aquatile；Second is that
With certain intensity, concrete is combined with plant, enhances the durability and function of safety protection of concrete；Third is that low alkali ring
Border is adapted to the growth of plant.
Existing eco-concrete on the market is mainly used for urban road, river and the construction of urban green space, uses simultaneously
Aggregate be nondegradable material, be not suitable in artificial marine habitat, seashore wetland reparation and revetment field, therefore use
Range is relatively narrow, has certain limitation.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation methods of high porosity eco-concrete, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the invention provides the following technical scheme: a kind of preparation side of high porosity eco-concrete
Method, comprising the following steps:
Step 1: by oyster shell, plant fiber and plant fiber skeleton be immersed in plant growth promoter for 24 hours~48h, air-dry
After store for future use；
Step 2: cement, water, plant fiber are thrown in agitator according to a certain percentage, by mixing plant by three
It is uniformly mixed, mixing time is 5~8min, then obtains A material；
Step 3: plant growth promoter and concrete performance modifying agent are stirred, and mixing time is 3~5min, obtain B
Material；
Step 4: B material obtained in step 2 is placed in A material together with oyster shell and is stirred, mixing time 6
~8min obtains C material；
Step 5: plant fiber skeleton is placed in processing mold, then pours into C material in processing mold, natural air drying 8
~10h；
Step 6: molding obtains eco-concrete.
Preferably, 100 parts of the cement in the step 2,1~10 part of plant fiber, 20~40 parts of water.
Preferably, the diameter of plant fiber is 10~500 μm in the step 2, intensity is 100~200pa, length
For the organic or inorganic class staple fiber material of 1~30mm.
Preferably, the concrete performance modifying agent in the step 3 includes pH adjusting agent and water-reducing agent.
Preferably, the grading of aggregates of the oyster shell in the step 4 is in 10~40mm.
Preferably, the material of the plant fiber and plant fiber skeleton includes one of following material or a variety of:
Sugarcane fibre, coconut palm palm fibre, bamboo silk, abaca fibre, sisal fiber.
Preferably, the plant fiber skeleton diameter be 0.3~10mm plant xylem, including but not limited to thin bamboo strips used for weaving,
Sugarcane crust, stalk, the gap between every two plant fiber skeleton put is in 20~50mm.
Preferably, the plant growth promoter includes plant nutrient agent and plant growth regulator, wherein plant nutrient
Agent includes N, P, and plant growth regulator includes auximone, the basic element of cell division, and N, P, auximone and cell point
The concentration for splitting element is 95~98%.
Compared with prior art, the beneficial effects of the present invention are: using natural oyster shell as coarse aggregate in the present invention, no
For addition fine aggregate to improve eco-concrete porosity, plant fiber is used as reinforcement material, improve eco-concrete intensity with
Tension, shear behavior, merging plant fiber skeleton improve eco-concrete globality, and addition concrete performance modifying agent adjusts mixed
Solidifying soil pH value promotes concrete comprehensive performance, and addition plant growth promoter promotes plant growth, while used material is all
It is degradable material, does not can cause environmental pollution, can be used for the neck such as artificial marine habitat, strand revegetation, coast environmental protection
The use scope of eco-concrete has been expanded in domain, and natural oyster shell and plant fiber are all common fishery and agriculture waste
Object, so that fishery and agricultural wastes resource utilization, reduce production cost.
Specific embodiment
It is clearly and completely described below in conjunction with the technical solution in the embodiment of the present invention, it is clear that described
Embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ability
Domain those of ordinary skill every other embodiment obtained without making creative work, belongs to the present invention
The range of protection.
Embodiment 1
The present invention provides a kind of technical solution: a kind of preparation method of high porosity eco-concrete, comprising the following steps:
Step 1: by oyster shell, plant fiber and plant fiber skeleton are immersed in plant growth promoter for 24 hours, store up after air-drying
It deposits spare；
Step 2: cement, water, plant fiber are thrown in agitator according to a certain percentage, by mixing plant by three
It is uniformly mixed, mixing time 5min then obtains A material；
Step 3: plant growth promoter and concrete performance modifying agent are stirred, and mixing time 3min obtains B object
Material；
Step 4: B material obtained in step 2 is placed in A material together with oyster shell and is stirred, mixing time is
6min obtains C material；
Step 5: plant fiber skeleton is placed in processing mold, is then poured into C material in processing mold, natural air drying
8h；
Step 6: molding obtains eco-concrete.
In the present embodiment, it is preferred that 100 parts of the cement in step 2,1 part of plant fiber, 20 parts of water.
In the present embodiment, it is preferred that in step 2 the diameter of plant fiber be 10 μm, intensity 100pa, length is
The organic or inorganic class staple fiber material of 1mm.
In the present embodiment, it is preferred that the concrete performance modifying agent in step 3 includes pH adjusting agent and water-reducing agent.
In the present embodiment, it is preferred that the grading of aggregates of the oyster shell in step 4 is in 10mm.
In the present embodiment, it is preferred that the material of plant fiber and plant fiber skeleton includes one of following material
It is or a variety of: sugarcane fibre, coconut palm palm fibre, bamboo silk, abaca fibre, sisal fiber.
In the present embodiment, it is preferred that plant fiber skeleton diameter is the plant xylem of 0.3mm, including but not limited to bamboo
The thin bamboo strip, sugarcane crust, stalk, the gap between every two plant fiber skeleton put is in 20mm.
In the present embodiment, it is preferred that plant growth promoter includes plant nutrient agent and plant growth regulator, wherein planting
Object nutritional agents includes N, P, and plant growth regulator includes auximone, the basic element of cell division, and N, P, auximone and
The concentration of the basic element of cell division is 95%.
Embodiment 2
The present invention provides a kind of technical solution: a kind of preparation method of high porosity eco-concrete, comprising the following steps:
Step 1: by oyster shell, plant fiber and plant fiber skeleton are immersed in plant growth promoter 36h, store up after air-drying
It deposits spare；
Step 2: cement, water, plant fiber are thrown in agitator according to a certain percentage, by mixing plant by three
It is uniformly mixed, mixing time 6min then obtains A material；
Step 3: plant growth promoter and concrete performance modifying agent are stirred, and mixing time 4min obtains B object
Material；
Step 4: B material obtained in step 2 is placed in A material together with oyster shell and is stirred, mixing time is
7min obtains C material；
Step 5: plant fiber skeleton is placed in processing mold, is then poured into C material in processing mold, natural air drying
9h；
Step 6: molding obtains eco-concrete.
In the present embodiment, it is preferred that 100 parts of the cement in step 2,50 parts of plant fiber, 30 parts of water.
In the present embodiment, it is preferred that in step 2 the diameter of plant fiber be 300 μm, intensity 150pa, length is
The organic or inorganic class staple fiber material of 20mm.
In the present embodiment, it is preferred that the concrete performance modifying agent in step 3 includes pH adjusting agent and water-reducing agent.
In the present embodiment, it is preferred that the grading of aggregates of the oyster shell in step 4 is in 30mm.
In the present embodiment, it is preferred that the material of plant fiber and plant fiber skeleton includes one of following material
It is or a variety of: sugarcane fibre, coconut palm palm fibre, bamboo silk, abaca fibre, sisal fiber.
In the present embodiment, it is preferred that plant fiber skeleton diameter be 5mm plant xylem, including but not limited to thin bamboo strips used for weaving,
Sugarcane crust, stalk, the gap between every two plant fiber skeleton put is in 30mm.
In the present embodiment, it is preferred that plant growth promoter includes plant nutrient agent and plant growth regulator, wherein planting
Object nutritional agents includes N, P, and plant growth regulator includes auximone, the basic element of cell division, and N, P, auximone and
The concentration of the basic element of cell division is 96%.
Embodiment 3
The present invention provides a kind of technical solution: a kind of preparation method of high porosity eco-concrete, comprising the following steps:
Step 1: by oyster shell, plant fiber and plant fiber skeleton are immersed in plant growth promoter 48h, store up after air-drying
It deposits spare；
Step 2: cement, water, plant fiber are thrown in agitator according to a certain percentage, by mixing plant by three
It is uniformly mixed, mixing time 8min then obtains A material；
Step 3: plant growth promoter and concrete performance modifying agent are stirred, and mixing time 5min obtains B object
Material；
Step 4: B material obtained in step 2 is placed in A material together with oyster shell and is stirred, mixing time is
8min obtains C material；
Step 5: plant fiber skeleton is placed in processing mold, is then poured into C material in processing mold, natural air drying
10h；
Step 6: molding obtains eco-concrete.
In the present embodiment, it is preferred that 100 parts of the cement in step 2,10 parts of plant fiber, 40 parts of water.
In the present embodiment, it is preferred that in step 2 the diameter of plant fiber be 500 μm, intensity 200pa, length is
The organic or inorganic class staple fiber material of 30mm.
In the present embodiment, it is preferred that the concrete performance modifying agent in step 3 includes pH adjusting agent and water-reducing agent.
In the present embodiment, it is preferred that the grading of aggregates of the oyster shell in step 4 is in 40mm.
In the present embodiment, it is preferred that the material of plant fiber and plant fiber skeleton includes one of following material
It is or a variety of: sugarcane fibre, coconut palm palm fibre, bamboo silk, abaca fibre, sisal fiber.
In the present embodiment, it is preferred that plant fiber skeleton diameter is the plant xylem of 10mm, including but not limited to bamboo
The thin bamboo strip, sugarcane crust, stalk, the gap between every two plant fiber skeleton put is in 50mm.
In the present embodiment, it is preferred that plant growth promoter includes plant nutrient agent and plant growth regulator, wherein planting
Object nutritional agents includes N, P, and plant growth regulator includes auximone, the basic element of cell division, and N, P, auximone and
The concentration of the basic element of cell division is 98%.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of preparation method of high porosity eco-concrete, it is characterised in that: the following steps are included:
Step 1: by oyster shell, plant fiber and plant fiber skeleton be immersed in plant growth promoter for 24 hours~48h, air-dry
After store for future use；
Step 2: cement, water, plant fiber are thrown in agitator according to a certain percentage, by mixing plant by three
It is uniformly mixed, mixing time is 5~8min, then obtains A material；
Step 3: plant growth promoter and concrete performance modifying agent are stirred, and mixing time is 3~5min, obtain B
Material；
Step 4: B material obtained in step 2 is placed in A material together with oyster shell and is stirred, mixing time 6
~8min obtains C material；
Step 5: plant fiber skeleton is placed in processing mold, then pours into C material in processing mold, natural air drying 8
~10h；
Step 6: molding obtains eco-concrete.
2. a kind of preparation method of high porosity eco-concrete according to claim 1, it is characterised in that: the step
100 parts of cement in two, 1~10 part of plant fiber, 20~40 parts of water.
3. a kind of preparation method of high porosity eco-concrete according to claim 1, it is characterised in that: the step
The diameter of plant fiber is 10~500 μm in two, intensity is 100~200pa, and length is the organic or inorganic of 1~30mm
Class staple fiber material.
4. a kind of preparation method of high porosity eco-concrete according to claim 1, it is characterised in that: the step
Concrete performance modifying agent in three includes pH adjusting agent and water-reducing agent.
5. a kind of preparation method of high porosity eco-concrete according to claim 1, it is characterised in that: the step
The grading of aggregates of oyster shell in four is in 10~40mm.
6. a kind of preparation method of high porosity eco-concrete according to claim 1, it is characterised in that: the plant
The material of fiber filament and plant fiber skeleton includes one of following material or a variety of: sugarcane fibre, coconut palm palm fibre, bamboo silk, abaca
Fiber, sisal fiber.
7. a kind of preparation method of high porosity eco-concrete according to claim 6, it is characterised in that: the plant
Fiber skeleton diameter is the plant xylem of 0.3~10mm, including but not limited to thin bamboo strips used for weaving, sugarcane crust, stalk, and that is put is every
Gap between two plant fiber skeletons is in 20~50mm.
8. a kind of preparation method of high porosity eco-concrete according to claim 1, it is characterised in that: the plant
Growth promoter includes plant nutrient agent and plant growth regulator, and wherein plant nutrient agent includes N, P, plant growth regulator
Including auximone, the basic element of cell division, and the concentration of N, P, auximone and the basic element of cell division are 95~98%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910777930.0A CN110451867A (en) | 2019-08-22 | 2019-08-22 | A kind of preparation method of high porosity eco-concrete |
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| CN201910777930.0A CN110451867A (en) | 2019-08-22 | 2019-08-22 | A kind of preparation method of high porosity eco-concrete |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111730720A (en) * | 2020-07-01 | 2020-10-02 | 自然资源部第四海洋研究所(中国—东盟国家海洋科技联合研发中心) | Ecological concrete test block mould of high porosity |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1388081A (en) * | 2001-05-29 | 2003-01-01 | 王金华 | Concrete with shell aggregate |
| CN101157534A (en) * | 2007-09-14 | 2008-04-09 | 浙江大学 | Virescence ecological brick and preparation method and usage thereof |
| KR20100121026A (en) * | 2009-05-07 | 2010-11-17 | 진혜경 | Environmental friendly ecological pavement |
| CN102010155A (en) * | 2010-01-19 | 2011-04-13 | 孙学军 | High-strength plant growing type porous concrete and preparation method thereof |
| CN104938384A (en) * | 2015-06-18 | 2015-09-30 | 广东工业大学 | Bionic concrete artificial fish reef and preparation method thereof |
| CN105418039A (en) * | 2015-12-23 | 2016-03-23 | 济南大学 | Slow-release fertilizer effect based porous ecological concrete and preparation method therefor |
| CN105924052A (en) * | 2016-01-14 | 2016-09-07 | 青岛农业大学 | Preparation method of antifreezing plant ecological concrete |
| CN108617465A (en) * | 2018-07-02 | 2018-10-09 | 河南华美生态环境科技股份有限公司 | A kind of revegetation ecological matrix and preparation method thereof |
| CN108911647A (en) * | 2017-04-06 | 2018-11-30 | 济南大学 | It is a kind of from nutrition and the concrete for plant growth and preparation method thereof of adjustable porosity |
-
2019
- 2019-08-22 CN CN201910777930.0A patent/CN110451867A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1388081A (en) * | 2001-05-29 | 2003-01-01 | 王金华 | Concrete with shell aggregate |
| CN101157534A (en) * | 2007-09-14 | 2008-04-09 | 浙江大学 | Virescence ecological brick and preparation method and usage thereof |
| KR20100121026A (en) * | 2009-05-07 | 2010-11-17 | 진혜경 | Environmental friendly ecological pavement |
| CN102010155A (en) * | 2010-01-19 | 2011-04-13 | 孙学军 | High-strength plant growing type porous concrete and preparation method thereof |
| CN104938384A (en) * | 2015-06-18 | 2015-09-30 | 广东工业大学 | Bionic concrete artificial fish reef and preparation method thereof |
| CN105418039A (en) * | 2015-12-23 | 2016-03-23 | 济南大学 | Slow-release fertilizer effect based porous ecological concrete and preparation method therefor |
| CN105924052A (en) * | 2016-01-14 | 2016-09-07 | 青岛农业大学 | Preparation method of antifreezing plant ecological concrete |
| CN108911647A (en) * | 2017-04-06 | 2018-11-30 | 济南大学 | It is a kind of from nutrition and the concrete for plant growth and preparation method thereof of adjustable porosity |
| CN108617465A (en) * | 2018-07-02 | 2018-10-09 | 河南华美生态环境科技股份有限公司 | A kind of revegetation ecological matrix and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111730720A (en) * | 2020-07-01 | 2020-10-02 | 自然资源部第四海洋研究所(中国—东盟国家海洋科技联合研发中心) | Ecological concrete test block mould of high porosity |
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Application publication date: 20191115 |