CN112142387A - Preparation method of environment-friendly water-saving recycled concrete - Google Patents
Preparation method of environment-friendly water-saving recycled concrete Download PDFInfo
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- CN112142387A CN112142387A CN202010885561.XA CN202010885561A CN112142387A CN 112142387 A CN112142387 A CN 112142387A CN 202010885561 A CN202010885561 A CN 202010885561A CN 112142387 A CN112142387 A CN 112142387A
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/16—Waste materials; Refuse from building or ceramic industry
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a preparation method of environment-friendly water-saving recycled concrete, which comprises the following steps of: 100-125 parts of coarse aggregate, 30-40 parts of fine aggregate, 20-30 parts of regenerated aggregate, 30-35 parts of cement, 8-12 parts of fly ash, 3-5 parts of quartz sand, 4-7 parts of perlite, 6-12 parts of magnesium oxide, 2-6 parts of lubricating grease, 2-8 parts of talcum powder, 5-10 parts of water glass, 7-15 parts of sodium hexametaphosphate, 3-6 parts of a leveling agent, 4-8 parts of stearic acid and 15-18 parts of water; pouring the regenerated aggregate, the fly ash and the quartz sand into a stirrer to be stirred and mixed, and spraying tap water on the surface of the mixture to ensure that the surface of the mixture is completely wet. According to the invention, the production raw materials of the concrete are milled, so that the quality of the concrete in the later processing can be ensured, the water-saving material is added in the preparation process of the concrete, the environmental protection performance of the concrete can be improved, the waste materials can be circularly processed in the building construction process, the resources are effectively saved, and the utilization rate is improved.
Description
Technical Field
The invention relates to the technical field of concrete production, in particular to a preparation method of environment-friendly water-saving recycled concrete.
Background
With the vigorous development of commercial concrete in China, the concrete industry has become the pillar industry in the field of building materials, however, once a building or a structure is disassembled, the commercial concrete is also correspondingly the 'mastership' of building wastes, currently, in China, the discharge amount of concrete wastes per year exceeds one hundred million tons, the waste concrete is mostly not well recycled in the past, and simultaneously, a large amount of fields are needed for treating the building wastes (stacking or burying), meanwhile, the cement industry is used as the pillar industry of the building material industry, and is a 'big house' without reason in terms of resource and energy consumption, which is contradictory to the current situations of resource shortage in 21 century and energy shortage, and according to statistics, the total amount of the waste concrete generated in China is only (the production process of the concrete), The sum of waste concrete in the building construction process and the building demolition process) reaches over 12000 million tons, the total amount of building waste is increased along with the further acceleration of the economic construction pace of China, the problem of shortage of natural aggregate resources can be solved by taking the broken building waste as regenerated aggregate, the environment protection of aggregate production places can be facilitated, the problems of stacking, occupation of land and environment pollution caused by the crushed waste concrete can be reduced, the regeneration and recycling of concrete production are realized, and the sustainable development of the building industry is ensured.
Disclosure of Invention
The invention aims to provide an environment-friendly water-saving recycled concrete preparation method to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the production method of the environment-friendly water-saving recycled concrete comprises the following steps:
A. firstly, weighing the following raw materials in parts by weight: 100-125 parts of coarse aggregate, 30-40 parts of fine aggregate, 20-30 parts of regenerated aggregate, 30-35 parts of cement, 8-12 parts of fly ash, 3-5 parts of quartz sand, 4-7 parts of perlite, 6-12 parts of magnesium oxide, 2-6 parts of lubricating grease, 2-8 parts of talcum powder, 5-10 parts of water glass, 7-15 parts of sodium hexametaphosphate, 3-6 parts of a leveling agent, 4-8 parts of stearic acid and 15-18 parts of water;
B. pouring the regenerated aggregate, the fly ash and the quartz sand into a stirrer to be stirred and mixed, and spraying tap water on the surface of the mixture to ensure that the surface of the mixture is completely wet;
C. and pouring out the mixed mixture, spreading out the mixture while naturally airing the mixture, putting all other raw materials into the stirrer according to a certain proportion, stirring and mixing the mixture for a period of time, pouring the aired mixture into the stirrer, stirring and mixing the mixture again, setting the set time, and pouring out the stirred raw materials to obtain the environment-friendly water-saving recycled concrete.
Preferably, the weight components required in step a are: 110 parts of coarse aggregate, 35 parts of fine aggregate, 25 parts of regenerated aggregate, 32 parts of cement, 9 parts of fly ash, 4 parts of quartz sand, 6 parts of perlite, 8 parts of magnesium oxide, 3 parts of lubricating grease, 3 parts of talcum powder, 7 parts of water glass, 12 parts of sodium hexametaphosphate, 5 parts of leveling agent, 6 parts of stearic acid and 13 parts of water.
Preferably, the regenerated aggregate is milled by a mill for a period of 3 hours before mixing in step B, and then the fly ash and the quartz sand are poured in sequence, and the addition of water is properly manually controlled to be completely mixed.
Preferably, the recycled aggregate is recycled sand powder, the particle size of the recycled sand powder is 3mm-7mm, and the recycled sand powder is obtained by crushing the construction waste by using a crusher and then removing metal substances, combustible substances and soil.
Preferably, the stirring is performed at a rotational speed of 230rpm/min, and the stirring is performed along a clockwise stirring cycle.
Preferably, the mill has a milling consistency of about 12 to 15% after 30 to 60 minutes of each milling.
Preferably, the mixture is naturally dried for four hours, and particle impurities and dust are prevented from being doped in the mixture during the drying process.
Preferably, before all the raw materials are mixed in the step C, the interior of the mixer is cleaned, so that the influence on the quality of the recycled concrete caused by doping other impurities is avoided, and the raw materials are poured in a certain sequence.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the production raw materials of the concrete are milled, so that the quality of the concrete in the later processing can be ensured, the water-saving material is added in the preparation process of the concrete, the environmental protection performance of the concrete can be improved, the waste materials can be circularly processed in the building construction process, the resources are effectively saved, and the utilization rate is improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
In order to achieve the purpose, the invention provides the following technical scheme: the production method of the environment-friendly water-saving recycled concrete comprises the following steps:
A. firstly, weighing the following raw materials in parts by weight: 100-125 parts of coarse aggregate, 30-40 parts of fine aggregate, 20-30 parts of regenerated aggregate, 30-35 parts of cement, 8-12 parts of fly ash, 3-5 parts of quartz sand, 4-7 parts of perlite, 6-12 parts of magnesium oxide, 2-6 parts of lubricating grease, 2-8 parts of talcum powder, 5-10 parts of water glass, 7-15 parts of sodium hexametaphosphate, 3-6 parts of a leveling agent, 4-8 parts of stearic acid and 15-18 parts of water;
B. pouring the regenerated aggregate, the fly ash and the quartz sand into a stirrer to be stirred and mixed, and spraying tap water on the surface of the mixture to ensure that the surface of the mixture is completely wet;
C. and pouring out the mixed mixture, spreading out the mixture while naturally airing the mixture, putting all other raw materials into the stirrer according to a certain proportion, stirring and mixing the mixture for a period of time, pouring the aired mixture into the stirrer, stirring and mixing the mixture again, setting the set time, and pouring out the stirred raw materials to obtain the environment-friendly water-saving recycled concrete.
The first embodiment is as follows:
the production method of the environment-friendly water-saving recycled concrete comprises the following steps:
A. firstly, weighing the following raw materials in parts by weight: 110 parts of coarse aggregate, 35 parts of fine aggregate, 25 parts of regenerated aggregate, 32 parts of cement, 9 parts of fly ash, 4 parts of quartz sand, 6 parts of perlite, 8 parts of magnesium oxide, 3 parts of lubricating grease, 3 parts of talcum powder, 7 parts of water glass, 12 parts of sodium hexametaphosphate, 5 parts of flatting agent, 6 parts of stearic acid and 13 parts of water;
B. pouring the regenerated aggregate, the fly ash and the quartz sand into a stirrer to be stirred and mixed, and spraying tap water on the surface of the mixture to ensure that the surface of the mixture is completely wet;
C. and pouring out the mixed mixture, spreading out the mixture while naturally airing the mixture, putting all other raw materials into the stirrer according to a certain proportion, stirring and mixing the mixture for a period of time, pouring the aired mixture into the stirrer, stirring and mixing the mixture again, setting the set time, and pouring out the stirred raw materials to obtain the environment-friendly water-saving recycled concrete.
Example two:
the production method of the environment-friendly water-saving recycled concrete comprises the following steps:
A. firstly, weighing the following raw materials in parts by weight: 100-125 parts of coarse aggregate, 30-40 parts of fine aggregate, 20-30 parts of regenerated aggregate, 30-35 parts of cement, 8-12 parts of fly ash, 3-5 parts of quartz sand, 4-7 parts of perlite, 6-12 parts of magnesium oxide, 2-6 parts of lubricating grease, 2-8 parts of talcum powder, 5-10 parts of water glass, 7-15 parts of sodium hexametaphosphate, 3-6 parts of a leveling agent, 4-8 parts of stearic acid and 15-18 parts of water;
B. pouring the regenerated aggregate, the fly ash and the quartz sand into a stirrer to be stirred and mixed, spraying tap water on the surface of the mixture to enable the surface of the mixture to be completely wet, grinding the regenerated aggregate for a period of time of 3 hours by using a grinding machine before mixing, then pouring the fly ash and the quartz sand in sequence, and manually and properly holding the addition of water until the mixture is completely mixed;
C. and pouring out the mixed mixture, spreading out the mixture while naturally airing the mixture, putting all other raw materials into the stirrer according to a certain proportion, stirring and mixing the mixture for a period of time, pouring the aired mixture into the stirrer, stirring and mixing the mixture again, setting the set time, and pouring out the stirred raw materials to obtain the environment-friendly water-saving recycled concrete.
Example three:
the production method of the environment-friendly water-saving recycled concrete comprises the following steps:
A. firstly, weighing the following raw materials in parts by weight: 100-125 parts of coarse aggregate, 30-40 parts of fine aggregate, 20-30 parts of regenerated aggregate, 30-35 parts of cement, 8-12 parts of fly ash, 3-5 parts of quartz sand, 4-7 parts of perlite, 6-12 parts of magnesium oxide, 2-6 parts of lubricating grease, 2-8 parts of talcum powder, 5-10 parts of water glass, 7-15 parts of sodium hexametaphosphate, 3-6 parts of a leveling agent, 4-8 parts of stearic acid and 15-18 parts of water;
B. pouring the regenerated aggregate, the fly ash and the quartz sand into a stirrer to be stirred and mixed, and spraying tap water on the surface of the mixture to ensure that the surface of the mixture is completely wet, wherein the regenerated aggregate is regenerated sand powder, the particle size of the regenerated sand powder is 3-7 mm, and the regenerated sand powder is obtained by crushing construction waste by using a crusher and removing metal, combustible and soil;
C. and pouring out the mixed mixture, spreading out the mixture while naturally airing the mixture, putting all other raw materials into the stirrer according to a certain proportion, stirring and mixing the mixture for a period of time, pouring the aired mixture into the stirrer, stirring and mixing the mixture again, setting the set time, and pouring out the stirred raw materials to obtain the environment-friendly water-saving recycled concrete.
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 (8)
1. The preparation method of the environment-friendly water-saving recycled concrete is characterized by comprising the following steps: the production method comprises the following steps:
A. firstly, weighing the following raw materials in parts by weight: 100-125 parts of coarse aggregate, 30-40 parts of fine aggregate, 20-30 parts of regenerated aggregate, 30-35 parts of cement, 8-12 parts of fly ash, 3-5 parts of quartz sand, 4-7 parts of perlite, 6-12 parts of magnesium oxide, 2-6 parts of lubricating grease, 2-8 parts of talcum powder, 5-10 parts of water glass, 7-15 parts of sodium hexametaphosphate, 3-6 parts of a leveling agent, 4-8 parts of stearic acid and 15-18 parts of water;
B. pouring the regenerated aggregate, the fly ash and the quartz sand into a stirrer to be stirred and mixed, and spraying tap water on the surface of the mixture to ensure that the surface of the mixture is completely wet;
C. and pouring out the mixed mixture, spreading out the mixture while naturally airing the mixture, putting all other raw materials into the stirrer according to a certain proportion, stirring and mixing the mixture for a period of time, pouring the aired mixture into the stirrer, stirring and mixing the mixture again, setting the set time, and pouring out the stirred raw materials to obtain the environment-friendly water-saving recycled concrete.
2. The method for preparing environment-friendly water-saving recycled concrete according to claim 1, wherein the method comprises the following steps: the weight components required in the step A are as follows: 110 parts of coarse aggregate, 35 parts of fine aggregate, 25 parts of regenerated aggregate, 32 parts of cement, 9 parts of fly ash, 4 parts of quartz sand, 6 parts of perlite, 8 parts of magnesium oxide, 3 parts of lubricating grease, 3 parts of talcum powder, 7 parts of water glass, 12 parts of sodium hexametaphosphate, 5 parts of leveling agent, 6 parts of stearic acid and 13 parts of water.
3. The method for preparing environment-friendly water-saving recycled concrete according to claim 1, wherein the method comprises the following steps: and B, grinding the regenerated aggregate for a period of time of 3 hours by using a grinding machine before mixing in the step B, then sequentially pouring the fly ash and the quartz sand, and properly manually holding the addition of water until the materials are completely mixed.
4. The method for preparing environment-friendly water-saving recycled concrete according to claim 1, wherein the method comprises the following steps: the regenerated aggregate is regenerated sand powder, the particle size of the regenerated sand powder is 3-7 mm, and the regenerated sand powder is obtained by crushing construction waste by using a crusher and removing metal substances, combustible substances and soil.
5. The method for preparing environment-friendly water-saving recycled concrete according to claim 1, wherein the method comprises the following steps: the stirring was carried out at a rotational speed of 230rpm/min, and the stirring was carried out in a clockwise stirring cycle.
6. The method for preparing environment-friendly water-saving recycled concrete according to claim 3, wherein the method comprises the following steps: the milling concentration of the mill is about 12-15%, and each milling time is 30-60 minutes later.
7. The method for preparing environment-friendly water-saving recycled concrete according to claim 1, wherein the method comprises the following steps: the time of the mixture is naturally dried is four hours, and the inside doped particle impurities and dust are avoided in the drying process.
8. The method for preparing environment-friendly water-saving recycled concrete according to claim 1, wherein the method comprises the following steps: before all the raw materials are mixed in the step C, the interior of the stirrer is cleaned, the influence on the quality of the recycled concrete caused by doping other impurities is avoided, and the raw materials are poured in according to a certain sequence.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010885561.XA CN112142387A (en) | 2020-08-28 | 2020-08-28 | Preparation method of environment-friendly water-saving recycled concrete |
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| CN202010885561.XA CN112142387A (en) | 2020-08-28 | 2020-08-28 | Preparation method of environment-friendly water-saving recycled concrete |
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| CN112142387A true CN112142387A (en) | 2020-12-29 |
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| CN202010885561.XA Pending CN112142387A (en) | 2020-08-28 | 2020-08-28 | Preparation method of environment-friendly water-saving recycled concrete |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113443887A (en) * | 2021-03-25 | 2021-09-28 | 杨荣飞 | Water glass concrete and preparation method thereof |
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| CN103979921A (en) * | 2014-05-12 | 2014-08-13 | 四川省元程中博能源开发有限公司 | Magnesium oxychloride fiber light wallboard |
| CN104496538A (en) * | 2014-11-28 | 2015-04-08 | 青岛崂乡茶制品有限公司 | Water saving-type concrete curing agent |
| CN108911606A (en) * | 2018-08-14 | 2018-11-30 | 顺裕（龙岩）混凝土有限公司 | A kind of regeneration concrete preparation method of high anti-seismic |
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2020
- 2020-08-28 CN CN202010885561.XA patent/CN112142387A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0610156D0 (en) * | 2006-05-23 | 2006-06-28 | Brand & Rae Ltd | Concrete building block and method for producing the same |
| CN103979921A (en) * | 2014-05-12 | 2014-08-13 | 四川省元程中博能源开发有限公司 | Magnesium oxychloride fiber light wallboard |
| CN104496538A (en) * | 2014-11-28 | 2015-04-08 | 青岛崂乡茶制品有限公司 | Water saving-type concrete curing agent |
| CN108911606A (en) * | 2018-08-14 | 2018-11-30 | 顺裕（龙岩）混凝土有限公司 | A kind of regeneration concrete preparation method of high anti-seismic |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113443887A (en) * | 2021-03-25 | 2021-09-28 | 杨荣飞 | Water glass concrete and preparation method thereof |
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