CN111439986A - Method for manufacturing slope greening ecological building blocks by building slurry - Google Patents

Method for manufacturing slope greening ecological building blocks by building slurry Download PDF

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Publication number
CN111439986A
CN111439986A CN202010322236.2A CN202010322236A CN111439986A CN 111439986 A CN111439986 A CN 111439986A CN 202010322236 A CN202010322236 A CN 202010322236A CN 111439986 A CN111439986 A CN 111439986A
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CN
China
Prior art keywords
building
water
slurry
ecological
block
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
Application number
CN202010322236.2A
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Chinese (zh)
Inventor
常红晨
刘劲驰
江浩
王滨
刘春燕
陈政
张苏皖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Environment Group Co Ltd
Nanjing City Construction Investment Holding Group Co ltd
Original Assignee
Nanjing Environment Group Co Ltd
Nanjing City Construction Investment Holding Group Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanjing Environment Group Co Ltd, Nanjing City Construction Investment Holding Group Co ltd filed Critical Nanjing Environment Group Co Ltd
Priority to CN202010322236.2A priority Critical patent/CN111439986A/en
Publication of CN111439986A publication Critical patent/CN111439986A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/24Compositions 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 alkyl, ammonium or metal silicates; containing silica sols
    • C04B28/26Silicates of the alkali metals
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G24/00Growth substrates; Culture media; Apparatus or methods therefor
    • A01G24/10Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G24/00Growth substrates; Culture media; Apparatus or methods therefor
    • A01G24/20Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G24/00Growth substrates; Culture media; Apparatus or methods therefor
    • A01G24/30Growth substrates; Culture media; Apparatus or methods therefor based on or containing synthetic organic compounds
    • A01G24/35Growth substrates; Culture media; Apparatus or methods therefor based on or containing synthetic organic compounds containing water-absorbing polymers
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G24/00Growth substrates; Culture media; Apparatus or methods therefor
    • A01G24/40Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure
    • A01G24/44Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure in block, mat or sheet form
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/02Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05DINORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D9/00Other inorganic fertilisers
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00017Aspects relating to the protection of the environment
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00732Uses not provided for elsewhere in C04B2111/00 for soil stabilisation
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00758Uses not provided for elsewhere in C04B2111/00 for agri-, sylvi- or piscicultural or cattle-breeding applications

Abstract

The invention discloses a method for manufacturing a slope greening ecological block by building slurry, which comprises the following steps of: 50-70% of building slurry, 2-5% of slow-release organic fertilizer, 5-10% of water-retaining agent, 3-6% of water glass, 5-10% of stone, 10-15% of sand and the balance of synthetic fiber, wherein the sum of the weight percentages of the components is 100%. The manufacturing method of the building block comprises the following steps: (1) mixing and uniformly stirring the building slurry, the slow-release organic fertilizer, the water-retaining agent, the water glass, the stones, the sand and the synthetic fibers; (2) placing the mixture in a mold, and pre-pressing at 1-2MPa for 5-15 s; (3) demolding the building block subjected to pre-pressing molding, and then curing for 24 hours at the temperature of 30-40 ℃ and the humidity of more than or equal to 90%; (4) and putting the cured building blocks into an ecological bag with grass seeds. The invention can solve the problem of treatment and disposal of the waste slurry and realize the aim of resource utilization.

Description

Method for manufacturing slope greening ecological building blocks by building slurry
Technical Field
The invention belongs to the technical field of resource environment protection, relates to a method for recycling waste building slurry, and particularly relates to a method for manufacturing a slope greening ecological building block by using the building slurry.
Background
A large amount of waste building slurry can be generated in the process of large-scale urban construction, if the waste building slurry cannot be properly treated, a large amount of valuable land resources are occupied for stacking, and pollutants contained in the slurry have the risk of polluting soil, underground water and surface water environments. The safe disposal and resource utilization of the construction slurry become one of the bottleneck problems restricting the development of urban construction.
On the other hand, a great number of barren mountains, mining (stone) slopes, defense improvement and the like which need to be greened or subjected to ecological transformation are distributed in cities and surrounding areas. The engineering generally relates to slope reconstruction and greening with a certain slope, such as direct soil-piling and plant planting, loose soil body structure, difficult meeting of the requirement of anti-sliding stability due to physical and mechanical properties, and risk of slope instability.
The waste slurry generated in the urban construction process is treated, water-retaining agents and slow-release fertilizers necessary for plant growth are added, water glass is added to improve the cohesiveness of the soil body, and synthetic fibers are added to improve the strength of the soil body. And finally, a building block with a certain shape and strength is manufactured in a pre-pressing forming mode, and the building block is placed into an ecological bag with grass seeds. According to the requirements of the slope of the side slope, the terrain and the like, the ecological bag filled with the ecological building blocks is laid on the side slope in an assembling mode, the fertilizer, the water-retaining agent and the like in the building blocks can meet the growth requirements of grass seeds in the ecological bag and the requirements of side slope greening, the building blocks are good in integrity and can meet the requirements of side slope stability. Therefore, the invention is especially provided.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a slope greening ecological building block made of building slurry and a manufacturing method thereof, so that the problem of treatment and disposal of waste slurry is solved, and the aim of resource utilization is fulfilled.
The above purpose of the invention is realized by the following technical scheme:
a slope greening ecological block made of building slurry is composed of building slurry, a slow-release organic fertilizer, a water-retaining agent, water glass, stones, sand, synthetic fibers and an ecological bag with grass seeds.
Further, the components are as follows by weight percent: 50-70% of building slurry, 2-5% of slow-release organic fertilizer, 5-10% of water-retaining agent, 3-6% of water glass, 5-10% of stone, 10-15% of sand and the balance of synthetic fiber, wherein the sum of the weight percentages of the components is 100%.
Further, the ecological bag with grass seeds is a slope protection bag formed by needling filament polyester fibers into a net.
Further, the building slurry is slurry generated in projects such as drilling and piling, shield construction, foundation excavation, underground diaphragm wall construction and the like of a building site, and the water content is 40-70%; if the water content is more than 70%, the water content is reduced to below 70% by corresponding dehydration measures; if the water content is less than 40%, a certain amount of water is added to make the water content more than 40%.
Furthermore, the particle size of the stones is less than or equal to 10mm, and the particle size of the sand is less than or equal to 2 mm.
The manufacturing method of the ecological building block comprises the following steps:
(1) mixing and stirring the building slurry, the slow-release organic fertilizer, the water-retaining agent, the water glass, the stones, the sand and the synthetic fibers uniformly;
(2) placing the obtained mixture in a mold, and pre-pressing under the pressure of 1-2MPa for 5-15 seconds;
(3) demolding the building block subjected to pre-pressing molding, and then curing for 24 hours at the temperature of 30-40 ℃ and the humidity of more than or equal to 90%;
(4) and putting the cured building blocks into an ecological bag with grass seeds to obtain the building block.
Has the advantages that:
the technical scheme of the invention solves the problem of safe disposal of a large amount of waste building mud, and realizes resource utilization of the waste mud to the maximum extent; the water glass and the synthetic fiber are added into the manufactured building block, and the building block is subjected to prepressing forming, so that the strength and the stability of the building block are improved, and the problem of stability of the building block as side slope earth covering can be solved; the stones and sand contained in the building blocks can improve the porosity of the building blocks and promote the growth of plant roots; the slow release fertilizer and the water-retaining agent can meet the growth requirement of vegetation, and realize quick greening and ecological reconstruction of the side slope; take the ecological bag of grass seed to provide the vegetation seed, and have higher frictional force between the ecological bag, the bank protection that forms after the concatenation has better stability.
Detailed Description
The following examples are given to illustrate the essence of the present invention, but not to limit the scope of the present invention.
Example 1:
the building slurry is generated by foundation excavation, and the water content is 66%.
According to the weight percentage, 61 percent of building slurry, 3 percent of slow-release organic fertilizer, 7 percent of water-retaining agent, 4 percent of water glass, 8 percent of stone (with the particle size of 8 mm), 12 percent of sand (with the particle size of 2 mm) and 5 percent of synthetic fiber are mixed and stirred evenly and poured into a mould, wherein the size of the mould is 20cm × 15cm 3515 cm × 10 cm.
And (3) prepressing the building block for 10 seconds on hydraulic equipment by adopting the pressure of 2 MPa.
And (3) after demoulding, curing the building block for 24 hours under the conditions of 95% humidity and 36 ℃.
The building blocks are put into a plant growing bag containing grass seeds, and the size of the plant growing bag is 22cm × 18cm × 12 cm.
Example 2:
the building slurry is generated by drilling and piling, and the water content is 92%.
The building slurry is pressed and filtered by a plate frame machine for dehydration, and the water content of the dehydrated building slurry is 57%.
According to the weight percentage, 63 percent of building slurry, 4 percent of slow-release organic fertilizer, 6 percent of water-retaining agent, 5 percent of water glass, 6 percent of stone (with the particle size of 6 mm), 13 percent of sand (with the particle size of 1.5 mm) and 3 percent of synthetic fiber are mixed and stirred evenly and poured into a mould, wherein the size of the mould is 30cm × 20cm × 10 cm.
And prepressing the building block for 12 seconds on hydraulic equipment by adopting the pressure of 1 MPa.
And curing the building block for 24 hours under the conditions of 91 percent of humidity and 35 ℃ after demoulding.
The building blocks are put into a plant growing bag containing grass seeds, and the size of the plant growing bag is 35cm × 22cm × 12 cm.
The technical scheme of the invention solves the problem of safe disposal of a large amount of waste building mud, and realizes resource utilization of the waste mud to the maximum extent; the water glass and the synthetic fiber are added into the manufactured building block, and the building block is subjected to prepressing forming, so that the strength and the stability of the building block are improved, and the problem of stability of the building block as side slope earth covering can be solved; the stones and sand contained in the building blocks can improve the porosity of the building blocks and promote the growth of plant roots; the slow release fertilizer and the water-retaining agent can meet the growth requirement of vegetation, and realize quick greening and ecological reconstruction of the side slope; take the ecological bag of grass seed to provide the vegetation seed, and have higher frictional force between the ecological bag, the bank protection that forms after the concatenation has better stability.
The above-described embodiments are intended to be illustrative of the nature of the invention, but those skilled in the art will recognize that the scope of the invention is not limited to the specific embodiments.

Claims (6)

1. The utility model provides a side slope afforestation ecological block is made to building mud which characterized in that: the building block is composed of building slurry, slow-release organic fertilizer, water-retaining agent, water glass, stones, sand, synthetic fiber and ecological bags with grass seeds.
2. The ecological block according to claim 1, wherein the components are, in weight percent: 50-70% of building slurry, 2-5% of slow-release organic fertilizer, 5-10% of water-retaining agent, 3-6% of water glass, 5-10% of stone, 10-15% of sand and the balance of synthetic fiber, wherein the sum of the weight percentages of the components is 100%.
3. The ecological block of claim 1, wherein: the ecological bag with grass seeds is a slope protection bag formed by needling filament polyester fibers into a net.
4. The ecological block of claim 1, wherein: the building slurry is produced in the projects of drilling and piling, shield construction, foundation excavation, underground diaphragm wall construction and the like in the building site, and the water content is 40-70%; if the water content is more than 70%, the water content is reduced to below 70% by corresponding dehydration measures; if the water content is less than 40%, a certain amount of water is added to make the water content more than 40%.
5. The ecological block of claim 1, wherein: the particle size of the stones is less than or equal to 10mm, and the particle size of the sand is less than or equal to 2 mm.
6. The method for manufacturing the ecological block as claimed in any one of claims 1 to 5, which is characterized by comprising the following steps:
(1) mixing and stirring the building slurry, the slow-release organic fertilizer, the water-retaining agent, the water glass, the stones, the sand and the synthetic fibers uniformly;
(2) placing the obtained mixture in a mold, and pre-pressing under the pressure of 1-2MPa for 5-15 seconds;
(3) demolding the building block subjected to pre-pressing molding, and then curing for 24 hours at the temperature of 30-40 ℃ and the humidity of more than or equal to 90%;
(4) and putting the cured building blocks into an ecological bag with grass seeds to obtain the building block.
CN202010322236.2A 2020-04-22 2020-04-22 Method for manufacturing slope greening ecological building blocks by building slurry Pending CN111439986A (en)

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CN202010322236.2A CN111439986A (en) 2020-04-22 2020-04-22 Method for manufacturing slope greening ecological building blocks by building slurry

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112980449A (en) * 2021-02-05 2021-06-18 山东大学 Muddy water curing agent for preparing plant growing bag from engineering slurry, plant growing bag and preparation method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08205671A (en) * 1995-01-31 1996-08-13 Chichibu Onoda Cement Corp Filler for porous concrete block
US20020112398A1 (en) * 2001-02-16 2002-08-22 Smith Floyd T. Slope guard
CN103449775A (en) * 2013-08-20 2013-12-18 杨林江 Building baking-free bricks and production method thereof
CN105052438A (en) * 2015-07-10 2015-11-18 南通新华建筑集团有限公司 Vegetation slope protection method
CN105908987A (en) * 2016-04-06 2016-08-31 内蒙古启原文物古建筑修缮工程有限责任公司 Ecological reinforcement composite material used for historical site protection project and construction method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08205671A (en) * 1995-01-31 1996-08-13 Chichibu Onoda Cement Corp Filler for porous concrete block
US20020112398A1 (en) * 2001-02-16 2002-08-22 Smith Floyd T. Slope guard
CN103449775A (en) * 2013-08-20 2013-12-18 杨林江 Building baking-free bricks and production method thereof
CN105052438A (en) * 2015-07-10 2015-11-18 南通新华建筑集团有限公司 Vegetation slope protection method
CN105908987A (en) * 2016-04-06 2016-08-31 内蒙古启原文物古建筑修缮工程有限责任公司 Ecological reinforcement composite material used for historical site protection project and construction method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112980449A (en) * 2021-02-05 2021-06-18 山东大学 Muddy water curing agent for preparing plant growing bag from engineering slurry, plant growing bag and preparation method

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Application publication date: 20200724