CN111847945A - Construction waste recycling method - Google Patents
Construction waste recycling method Download PDFInfo
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- CN111847945A CN111847945A CN202010742100.7A CN202010742100A CN111847945A CN 111847945 A CN111847945 A CN 111847945A CN 202010742100 A CN202010742100 A CN 202010742100A CN 111847945 A CN111847945 A CN 111847945A
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- construction waste
- recycling method
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- brick
- auxiliary agent
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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
- 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
- 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
-
- 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
- C04B28/14—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 calcium sulfate 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
- 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
- C04B28/18—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 mixtures of the silica-lime type
-
- 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
Landscapes
- 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)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to the field of building material preparation methods, and particularly discloses a construction waste recycling method, which is characterized in that construction waste, basalt broken stone, an inorganic binder, an auxiliary agent and an organic binder are mixed to prepare a construction waste recycled brick, the formula system is reasonable, the prepared construction waste recycled brick has good compactness, high hardness and no crack, and can meet the building requirements, the construction waste used in the method comprises one or a mixture of a plurality of waste concrete, waste mortar and waste brick slag, the selectivity of the construction waste is low, and any construction waste can be used for manufacturing the construction waste recycled brick, so that the manual selection process is reduced. The method contains an auxiliary agent and an organic binder, and the construction waste, the basalt broken stone and the inorganic binder powder can be uniformly stirred and adhered to the auxiliary agent, so that the auxiliary agent and the organic binder are completely volatilized in the firing process to obtain the construction waste recycled brick with good compactness and uniform pores.
Description
Technical Field
The invention belongs to the field of preparation methods of building materials, and particularly relates to a recycling method of building garbage.
Background
With the development of national economy and the acceleration of industrialization and urbanization processes in China, the advancing pace of urbanization and new rural construction is accelerated step by step, the construction of various infrastructures is increased unprecedentedly, new buildings are pulled out, and old cities are changed into new cities. However, the quantity of the generated building wastes is increasing, the building wastes mainly comprise waste concrete, waste mortar, waste masonry, waste wood and the like, most of the building wastes are not treated at all and are transported to the suburbs or the peripheries of the suburbs for simple landfill or open-air stockpiling, and the treatment method not only needs to occupy a large amount of land, but also can destroy the soil structure and cause surface settlement; and the construction waste contains harmful heavy metal elements and high molecular polymers, which can cause serious environmental pollution and directly harm the lives of surrounding residents.
The construction waste recycling treatment can solve the problems that a large amount of construction waste is piled to occupy arable land and pollute the environment, can reduce the negative influence on the ecological environment caused by mountain digging and stone mining, has good economic benefit, social benefit and environmental benefit, and can achieve the purposes of energy conservation, emission reduction and resource recycling. Therefore, it is necessary to recycle the construction waste. The recycling of the construction waste is to crush and screen the construction waste, and the corresponding application is selected according to the difference of the obtained particle size. The composition of the building waste is complex, so that the problem of poor compatibility is easy to occur in the use process, cracks are easy to occur in the use process, and the stability of the building material is influenced. On the other hand, the construction waste is required to be screened and selected when the garbage sorting machine is used, and labor force is greatly wasted.
Disclosure of Invention
In order to solve the problems, the invention provides a construction waste recycling method, the construction waste is directly prepared into the construction brick, the construction is good in compactness, free of cracks and good in intermiscibility with the construction waste, the construction waste selecting process is reduced, the labor cost is greatly saved, the operation is convenient, and the method is suitable for industrial production and comprises the following steps:
the invention aims to provide a construction waste recycling method, which is technically characterized in that: the construction waste recycling method comprises the following steps:
the method comprises the following steps: putting the collected construction waste into a crusher for crushing to obtain coarse recycled aggregate with the particle size of 1-2cm, and then putting the coarse recycled aggregate into a crushing agent for crushing to obtain fine recycled aggregate with the particle size of 0.1-0.5 mm;
step two: adding the fine recycled aggregate, the basalt macadam and the inorganic binder in the step one into a ball mill for continuous ball milling, and grinding to be less than 100 mu m to obtain a first material;
step three: adding an auxiliary agent into the first material in the step two, placing the mixture into a stirrer to be stirred to obtain a second material, adding an organic binder into the second material, and uniformly stirring to obtain first slurry;
step four: and pouring the first slurry obtained in the step three into a prefabricated model, obtaining a rough rotor after initial setting, and curing and drying the rough rotor to obtain the construction waste recycled brick.
In some embodiments of the present invention, the construction waste in the first step includes one or a mixture of waste concrete, waste mortar and waste brick slag.
In some embodiments of the present invention, the rotation speed of the pulverizer in the first step is 3000-4000r/min, and the time is 20-30 min.
In some embodiments of the present invention, the weight of the fine recycled aggregate in the second step: the weight of the basalt broken stone is as follows: the weight of the auxiliary agent inorganic binder is (140- & lt160-): (5-13): (6-8).
In some embodiments of the present invention, the inorganic binder in step two is one or a mixture of several of fine silica powder, expanded perlite, carbon black, calcium silicate and desulfurized gypsum.
In some embodiments of the present invention, the weight of the auxiliary in step three is: the weight of the organic binder is as follows: the weight of the first material is (4-6): (100-200): (300-500).
In some embodiments of the present invention, the assistant in step three is one or a mixture of several of ammonium carbonate, ammonium bicarbonate, carbon powder, coal powder, polyvinyl alcohol and polymethyl methacrylate.
In some embodiments of the present invention, the organic binder in step three is one or more of polylactic acid, poly-3-hydroxybutyric acid, konjac glucomannan, melamine polyphosphate and methacryloxyoctyltrimethoxysilane.
In some embodiments of the present invention, the method for maintaining and drying in the fourth step includes: and (3) conveying the coarse brick to an open curing field, curing and drying for 2-4 days at the temperature of 120-150 ℃ and the humidity of 80-90% to obtain the construction waste regeneration brick.
Compared with the prior art, the invention has the beneficial effects that:
1. the construction waste recycling method provided by the invention is characterized in that the construction waste, the basalt broken stone, the inorganic binder, the auxiliary agent and the organic binder are mixed to prepare the construction waste recycled brick, the formula system is reasonable, and the prepared construction waste recycled brick has the advantages of good compactness, high hardness and no crack, and can meet the construction requirements.
2. The construction waste used in the construction waste recycling method comprises one or a mixture of a plurality of waste concrete, waste mortar and waste brick slag, the method has low selectivity on the construction waste, and any construction waste can be used for manufacturing the construction waste recycled brick, so that the manual selection process is reduced.
3. The construction waste recycling method disclosed by the invention contains the auxiliary agent and the organic binder, and the construction waste, the basalt broken stone and the inorganic binder powder can be uniformly stirred and adhered to the auxiliary agent, so that the auxiliary agent and the organic binder are completely volatilized in the firing process to obtain the construction waste recycled brick with good compactness and uniform pores.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below so that those skilled in the art can better understand the advantages and features of the present invention, and thus the scope of the present invention will be more clearly defined. The embodiments described herein are only a few embodiments of the present invention, rather than all embodiments, and all other embodiments that can be derived by one of ordinary skill in the art without inventive faculty based on the embodiments described herein are intended to fall within the scope of the present invention.
Example 1
The invention relates to a construction waste recycling method, which comprises the following steps:
the method comprises the following steps: putting the collected construction waste into a grinder for grinding to obtain coarse recycled aggregate with the particle size of 1.5cm, and then putting the coarse recycled aggregate into a grinding agent for grinding to obtain fine recycled aggregate with the particle size of 0.3 mm;
step two: adding the fine recycled aggregate, the basalt macadam and the inorganic binder in the step one into a ball mill for continuous ball milling, and grinding to 80 mu m to obtain a first material;
step three: adding an auxiliary agent into the first material in the step two, placing the mixture into a stirrer to be stirred to obtain a second material, adding an organic binder into the second material, and uniformly stirring to obtain first slurry;
step four: and pouring the first slurry obtained in the step three into a prefabricated model, obtaining a rough rotor after initial setting, and curing and drying the rough rotor to obtain the construction waste recycled brick.
Wherein the construction waste in the step one is waste concrete.
Wherein, the rotating speed of the pulverizer in the first step is 3500r/min, and the time is 25 min.
Wherein, the weight of the fine recycled aggregate in the step two is as follows: the weight of the basalt broken stone is as follows: the weight of the auxiliary agent inorganic binder is 150: 9: 7.
wherein, the inorganic binder in the second step is a mixture of silicon micropowder and expanded perlite.
Wherein the weight of the auxiliary agent in the third step is as follows: the weight of the organic binder is as follows: the weight of the first material is 5: 150: 400.
wherein, the assistant in the third step is the mixture of ammonium carbonate and ammonium bicarbonate.
Wherein the organic binder in the third step is a mixture of polylactic acid and poly 3-hydroxybutyric acid.
The method for maintaining and drying in the fourth step comprises the following steps: and (3) conveying the coarse brick to an open curing field, curing and drying for 3 days at 135 ℃ and 85% humidity to obtain the construction waste recycled brick.
Example 2
The invention relates to a construction waste recycling method, which comprises the following steps:
the method comprises the following steps: putting the collected construction waste into a grinder for grinding to obtain coarse recycled aggregate with the particle size of 1cm, and then putting the coarse recycled aggregate into a grinding agent for grinding to obtain fine recycled aggregate with the particle size of 0.1 mm;
step two: adding the fine recycled aggregate, the basalt macadam and the inorganic binder in the step one into a ball mill for continuous ball milling, and grinding to 90 mu m to obtain a first material;
step three: adding an auxiliary agent into the first material in the step two, placing the mixture into a stirrer to be stirred to obtain a second material, adding an organic binder into the second material, and uniformly stirring to obtain first slurry;
step four: and pouring the first slurry obtained in the step three into a prefabricated model, obtaining a rough rotor after initial setting, and curing and drying the rough rotor to obtain the construction waste recycled brick.
Wherein the construction waste in the first step comprises a mixture of waste concrete and waste mortar.
Wherein, the rotating speed of the pulverizer in the first step is 4000r/min, and the time is 20 min.
Wherein, the weight of the fine recycled aggregate in the step two is as follows: the weight of the basalt broken stone is as follows: the weight of the auxiliary agent inorganic binder is 140: 5: 6.
wherein, the inorganic binder in the second step is a mixture of carbon black and calcium silicate.
Wherein the weight of the auxiliary agent in the third step is as follows: the weight of the organic binder is as follows: the weight of the first material is 4: 100: 300.
wherein, the auxiliary agent in the third step is a mixture of coal powder and polyvinyl alcohol.
Wherein the organic binder in the third step is a mixture of konjac glucomannan and methacryloxy octyl trimethoxy silane.
The method for maintaining and drying in the fourth step comprises the following steps: and (3) conveying the coarse brick to an open curing field, curing and drying for 4 days at the temperature of 120 ℃ and the humidity of 90% to obtain the construction waste recycled brick.
Example 3
The invention relates to a construction waste recycling method, which comprises the following steps:
the method comprises the following steps: putting the collected construction waste into a grinder for grinding to obtain coarse recycled aggregate with the particle size of 2cm, and then putting the coarse recycled aggregate into a grinding agent for grinding to obtain fine recycled aggregate with the particle size of 0.5 mm;
step two: adding the fine recycled aggregate, the basalt macadam and the inorganic binder in the step one into a ball mill for continuous ball milling, and grinding to 60 mu m to obtain a first material;
step three: adding an auxiliary agent into the first material in the step two, placing the mixture into a stirrer to be stirred to obtain a second material, adding an organic binder into the second material, and uniformly stirring to obtain first slurry;
step four: and pouring the first slurry obtained in the step three into a prefabricated model, obtaining a rough rotor after initial setting, and curing and drying the rough rotor to obtain the construction waste recycled brick.
Wherein the construction waste in the step one comprises one or a mixture of more of waste concrete, waste mortar and waste brick slag.
Wherein, the rotating speed of the pulverizer in the step one is 3000r/min, and the time is 30 min.
Wherein, the weight of the fine recycled aggregate in the step two is as follows: the weight of the basalt broken stone is as follows: the weight of the auxiliary agent inorganic binder is 160: 13: 8.
wherein, the inorganic binder in the second step is a mixture of carbon black, calcium silicate and desulfurized gypsum.
Wherein the weight of the auxiliary agent in the third step is as follows: the weight of the organic binder is as follows: the weight of the first material is 6: 200: 500.
wherein, the assistant in the third step is a mixture of ammonium carbonate and polymethyl methacrylate.
Wherein the organic binder in the third step is a mixture of melamine polyphosphate and methacryloxyoctyltrimethoxysilane.
The method for maintaining and drying in the fourth step comprises the following steps: and (3) conveying the coarse brick to an open curing field, curing and drying for 2 days at the temperature of 50 ℃ and the humidity of 90% to obtain the construction waste recycled brick.
Example 4
The invention relates to a construction waste recycling method, which comprises the following steps:
the method comprises the following steps: putting the collected construction waste into a grinder for grinding to obtain coarse recycled aggregate with the particle size of 1.8cm, and then putting the coarse recycled aggregate into a grinding agent for grinding to obtain fine recycled aggregate with the particle size of 0.4 mm;
step two: adding the fine recycled aggregate, the basalt macadam and the inorganic binder in the step one into a ball mill for continuous ball milling, and grinding to 60 mu m to obtain a first material;
step three: adding an auxiliary agent into the first material in the step two, placing the mixture into a stirrer to be stirred to obtain a second material, adding an organic binder into the second material, and uniformly stirring to obtain first slurry;
step four: and pouring the first slurry obtained in the step three into a prefabricated model, obtaining a rough rotor after initial setting, and curing and drying the rough rotor to obtain the construction waste recycled brick.
Wherein the construction waste in the step one comprises one or a mixture of more of waste concrete, waste mortar and waste brick slag.
Wherein, the rotating speed of the pulverizer in the first step is 3200r/min, and the time is 28 min.
Wherein, the weight of the fine recycled aggregate in the step two is as follows: the weight of the basalt broken stone is as follows: the weight of the auxiliary agent inorganic binder is 145: 6: 7.
wherein the inorganic binder in the second step is calcium silicate.
Wherein the weight of the auxiliary agent in the third step is as follows: the weight of the organic binder is as follows: the weight of the first material is 5: 180: 450.
wherein the assistant in the third step is ammonium carbonate.
Wherein, the organic binder in the third step is melamine polyphosphate.
The method for maintaining and drying in the fourth step comprises the following steps: and (3) conveying the coarse brick to an open curing field, curing and drying for 3 days at the temperature of 140 ℃ and the humidity of 88% to obtain the construction waste recycled brick.
Comparative example 1
In the second step of the comparative example, basalt broken stones were not added, and the other operation methods were the same as in example 1.
Comparative example 2
Some basalt containing brick is sold on the market.
The recycled bricks prepared in examples 1 to 4 and comparative examples 1 to 2 were subjected to loss rate, compressive strength, water retention and porosity tests in accordance with the national standards.
TABLE 1
| Loss rate% | Compressive strength MPa | Porosity of | |
| Example 1 | 4.12 | ＞20 | 0.302 |
| Example 2 | 3.74 | ＞20 | 0.365 |
| Example 3 | 4.05 | ＞20 | 0.331 |
| Example 4 | 4.26 | ＞20 | 0.311 |
| Comparative example 1 | 8.65 | 5.5 | 0.405 |
| Comparative example 2 | 7.89 | 7.5 | 0.512 |
The present invention provides only a method for recycling construction waste, and a plurality of methods and ways for implementing the technical solution are provided, and the above description is only a preferred embodiment of the present invention, it should be noted that, for those skilled in the art, a plurality of improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention, and each component not explicitly described in the embodiment can be implemented by using the prior art.
Claims (9)
1. A construction waste recycling method is characterized by comprising the following steps:
the method comprises the following steps: putting the collected construction waste into a crusher for crushing to obtain coarse recycled aggregate with the particle size of 1-2cm, and then putting the coarse recycled aggregate into a crushing agent for crushing to obtain fine recycled aggregate with the particle size of 0.1-0.5 mm;
step two: adding the fine recycled aggregate, the basalt macadam and the inorganic binder in the step one into a ball mill for continuous ball milling, and grinding to be less than 100 mu m to obtain a first material;
step three: adding an auxiliary agent into the first material in the step two, placing the mixture into a stirrer to be stirred to obtain a second material, adding an organic binder into the second material, and uniformly stirring to obtain first slurry;
step four: and pouring the first slurry obtained in the step three into a prefabricated model, obtaining a rough rotor after initial setting, and curing and drying the rough rotor to obtain the construction waste recycled brick.
2. The construction waste recycling method according to claim 1, wherein: the construction waste in the first step comprises one or a mixture of more of waste concrete, waste mortar and waste brick slag.
3. The construction waste recycling method according to claim 1, wherein: the rotating speed of the pulverizer in the first step is 3000-4000r/min, and the time is 20-30 min.
4. The construction waste recycling method according to claim 1, wherein: the weight of the fine recycled aggregate in the second step is as follows: the weight of the basalt broken stone is as follows: the weight of the auxiliary agent inorganic binder is (140- & lt160-): (5-13): (6-8).
5. The construction waste recycling method according to claim 1, wherein: and the inorganic binder in the second step is one or a mixture of more of silica micropowder, expanded perlite, carbon black, calcium silicate and desulfurized gypsum.
6. The construction waste recycling method according to claim 1, wherein: the weight of the auxiliary agent in the third step is as follows: the weight of the organic binder is as follows: the weight of the first material is (4-6): (100-200): (300-500).
7. The construction waste recycling method according to claim 1, wherein: the assistant in the third step is one or a mixture of ammonium carbonate, ammonium bicarbonate, carbon powder, coal powder, polyvinyl alcohol and polymethyl methacrylate.
8. The construction waste recycling method according to claim 1, wherein: the organic binder in the third step is one or a mixture of more of polylactic acid, poly 3-hydroxybutyric acid, konjac glucomannan, polyphosphoric acid melamine and methacryloxyoctyl trimethoxy silane.
9. The construction waste recycling method according to claim 1, wherein: the method for maintaining and drying in the fourth step comprises the following steps: and (3) conveying the coarse brick to an open curing field, curing and drying for 2-4 days at the temperature of 120-150 ℃ and the humidity of 80-90% to obtain the construction waste regeneration brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010742100.7A CN111847945A (en) | 2020-07-29 | 2020-07-29 | Construction waste recycling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010742100.7A CN111847945A (en) | 2020-07-29 | 2020-07-29 | Construction waste recycling method |
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| CN111847945A true CN111847945A (en) | 2020-10-30 |
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| CN202010742100.7A Pending CN111847945A (en) | 2020-07-29 | 2020-07-29 | Construction waste recycling method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2892440A1 (en) * | 2005-10-25 | 2007-04-27 | Lefevre Sa Sa M | Construction element e.g. brick masonry structure, reinforcing method, involves inserting grout with base of hydraulic cement and basalt after drilling inside element, where basalt is powdery or fibrous mixed with hydraulic cement |
| CN105110702A (en) * | 2015-09-30 | 2015-12-02 | 何相华 | Autoclaved brick manufactured by utilizing construction waste and preparation method of autoclaved brick |
| CN106242511A (en) * | 2016-07-25 | 2016-12-21 | 安徽圆梦建筑有限公司 | A kind of freeze proof wall brick |
| CN107311539A (en) * | 2017-07-05 | 2017-11-03 | 合肥片美环保科技有限公司 | A kind of building waste is non-burning brick and preparation method thereof |
| CN110028296A (en) * | 2019-04-02 | 2019-07-19 | 普定县银丰农业科技发展有限公司 | A kind of building brick and preparation method thereof containing construction waste regenerant |
| CN111153617A (en) * | 2020-01-07 | 2020-05-15 | 四川联绿强环保科技有限公司 | Regenerated composite admixture utilizing construction waste and preparation method thereof |
-
2020
- 2020-07-29 CN CN202010742100.7A patent/CN111847945A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2892440A1 (en) * | 2005-10-25 | 2007-04-27 | Lefevre Sa Sa M | Construction element e.g. brick masonry structure, reinforcing method, involves inserting grout with base of hydraulic cement and basalt after drilling inside element, where basalt is powdery or fibrous mixed with hydraulic cement |
| CN105110702A (en) * | 2015-09-30 | 2015-12-02 | 何相华 | Autoclaved brick manufactured by utilizing construction waste and preparation method of autoclaved brick |
| CN106242511A (en) * | 2016-07-25 | 2016-12-21 | 安徽圆梦建筑有限公司 | A kind of freeze proof wall brick |
| CN107311539A (en) * | 2017-07-05 | 2017-11-03 | 合肥片美环保科技有限公司 | A kind of building waste is non-burning brick and preparation method thereof |
| CN110028296A (en) * | 2019-04-02 | 2019-07-19 | 普定县银丰农业科技发展有限公司 | A kind of building brick and preparation method thereof containing construction waste regenerant |
| CN111153617A (en) * | 2020-01-07 | 2020-05-15 | 四川联绿强环保科技有限公司 | Regenerated composite admixture utilizing construction waste and preparation method thereof |
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Application publication date: 20201030 |