CN117735944A - Construction method for solidifying building rubbish recycled aggregate by using novel cementing material - Google Patents
Construction method for solidifying building rubbish recycled aggregate by using novel cementing material Download PDFInfo
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- CN117735944A CN117735944A CN202311761424.5A CN202311761424A CN117735944A CN 117735944 A CN117735944 A CN 117735944A CN 202311761424 A CN202311761424 A CN 202311761424A CN 117735944 A CN117735944 A CN 117735944A
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- Prior art keywords
- aggregate
- cementing material
- novel cementing
- novel
- recycled aggregate
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- 239000000463 material Substances 0.000 title claims abstract description 56
- 238000010276 construction Methods 0.000 title claims abstract description 33
- 239000010813 municipal solid waste Substances 0.000 title abstract description 7
- 239000002699 waste material Substances 0.000 claims abstract description 25
- 239000011449 brick Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000002910 solid waste Substances 0.000 claims abstract description 10
- 239000004567 concrete Substances 0.000 claims abstract description 7
- 238000004064 recycling Methods 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 230000001172 regenerating effect Effects 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 15
- 239000002689 soil Substances 0.000 claims description 12
- 239000004568 cement Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000011398 Portland cement Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229910000000 metal hydroxide Inorganic materials 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 150000004679 hydroxides Chemical class 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 1
- 239000004576 sand Substances 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract description 3
- 239000004575 stone Substances 0.000 abstract description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a construction method for solidifying building rubbish recycled aggregate by using a novel cementing material, which sequentially comprises the following steps: the method comprises the steps of recycling aggregate in construction waste, crushing the solid waste by a crusher after the solid waste is separated, stacking coarse and fine aggregate separately, solidifying the aggregate by a novel cementing material by a brick making machine, regenerating the brick made of the aggregate, and manufacturing a secondary structure prefabricated part by using recycled concrete. The aggregate using the novel cementing material and combining local materials can completely meet the construction quality requirements of temporary enclosing walls, brick moulding bed masonry, temporary pavement of construction sites and the like of non-main structures. The social and economic benefits brought by the method are rich in the descendants and benefit residents. Meanwhile, the ecological damage of sand digging and stone removing to the surrounding environment of the city in the city building process can be relieved, and the purposes of changing waste into valuables and protecting environment are achieved.
Description
Technical Field
The invention relates to the technical field of recycled aggregate, in particular to a construction method for solidifying construction waste recycled aggregate by using a novel cementing material.
Background
In the prior art, the solid waste is mostly disposed in a stacking way, which causes environmental pollution, and according to the environmental resource tax law of China, 25-yuan pollution discharge tax per ton is required to be paid for disposing large and medium solid waste in a stacking way. The application of the recycled aggregate utilization technology in China also has a certain progress, but most of the research is focused on the recycled aggregate of the traditional cement, and the research of replacing the traditional cement with the novel cementing material solidified recycled aggregate is few.
Disclosure of Invention
In order to solve the problems, the invention discloses a construction method for solidifying building rubbish recycled aggregate by using a novel cementing material, which can reduce the cost of enterprises in pollution discharge in a resource utilization mode while recycling the building recycled aggregate; meanwhile, the recycled aggregate can replace part of gravel according to the mixing ratio, so that the cost of engineering building materials is saved.
The specific scheme is as follows:
the construction method for solidifying the construction waste recycled aggregate by using the novel cementing material is characterized by sequentially comprising the following steps of: the method comprises the steps of recycling aggregate in construction waste, crushing the solid waste by a crusher after the solid waste is separated, stacking coarse and fine aggregate separately, solidifying the aggregate by a novel cementing material by a brick making machine, regenerating the brick made of the aggregate, and manufacturing a secondary structure prefabricated part by using recycled concrete.
As a further improvement of the invention, the core technical indexes of the coarse aggregate are shown in the following table:
| particle size | Apparent density of | Mud content | Water absorption rate | Impurity content | Coarse-fine aggregate ratio |
| 20-25mm | 2500-2600kg/m 3 | ≤1％ | ≤4％ | ≤2％ | 60-75％ |
As a further improvement of the invention, the core technical indexes of the fine aggregate are shown in the following table:
| particle size | Apparent density of | Mud content | Water absorption rate | Impurity content | Coarse-fine aggregate ratio |
| 4-5mm | 2500-2600kg/m 2 | ≤1％ | ≤4％ | ≤2％ | 30-45％ |
As a further improvement of the invention, the crusher has a vibrating function of a vibrating table, is used for vibrating out low-grade adhesive mortar influencing strength, and loose interfaces are simultaneously vibrated out once, and also has an aggregate trimming function, so that redundant aggregate edges and corners are trimmed by grinding, and the aggregate surface is smoother and smoother.
As a further improvement of the invention, moisture-proof measures are needed when coarse and fine aggregates are stacked separately.
As a further improvement of the present invention, the novel cementing material is formed by adding metal oxides and hydroxides into cement components; the additive of the novel cementing material belongs to a high-performance inorganic cementing material, and the cementing material can react with the following two reactions in application: firstly, directly cementing and solidifying soil particles of soil body; secondly, reacting with minerals in the soil to generate a soil gelling material, wherein the main components comprise oxides such as calcium oxide, aluminum oxide, ferric oxide and the like, and excitant and the like; the additive is brick red powdery solid particles and is mixed with trace fine millimeter particles, the whole fineness of the novel cementing material is lower than that of ordinary Portland cement, and the performance of the novel cementing material is higher than that of the ordinary Portland cement.
As a further improvement of the invention, the composition ratio and the corresponding compressive strength of the novel cementing material are shown in the following table:
as a further improvement of the invention, the composition ratio of the recycled aggregate is shown in the following table:
the invention has the beneficial effects that: the aggregate using the novel cementing material and combining local materials can completely meet the construction quality requirements of temporary enclosing walls, brick moulding bed masonry, temporary pavement of construction sites and the like of non-main structures. The social and economic benefits brought by the method are rich in the descendants and benefit residents. Meanwhile, the ecological damage of sand digging and stone removing to the surrounding environment of the city in the city building process can be relieved, and the purposes of changing waste into valuables and protecting environment are achieved.
Drawings
Fig. 1 is a schematic view of a crusher according to the invention.
FIG. 2 is a schematic view showing the separate stacking of coarse and fine aggregates in the present invention.
FIG. 3 is a schematic diagram of a brick making machine.
Fig. 4 is a block diagram of a recycled aggregate.
Fig. 5 is a schematic view of a secondary structure prefabricated member manufactured using recycled concrete.
Detailed Description
The present invention is further illustrated in the following drawings and detailed description, which are to be understood as being merely illustrative of the invention and not limiting the scope of the invention.
As shown in the figure, the invention mainly solves the adverse effect of a large amount of building wastes generated in construction engineering on urban environment and water source. The waste construction waste is processed into the recycled aggregate through cracking, crushing, cleaning, screening and the like. Waste building waste concrete, broken bricks and other garbage are crushed by a crusher, and the crushed materials are added into a novel cementing material by a stirrer and a sand making machine to prepare the bricks, so that the novel cementing material is reasonably used in construction such as temporary enclosing walls with non-main structures, brick tire building, temporary pavement paving on construction sites and the like.
The invention provides a construction method for solidifying building rubbish recycled aggregate by using a novel cementing material, which is characterized by comprising the following steps in sequence: the method comprises the steps of recycling aggregate in construction waste, crushing the solid waste by a crusher after the solid waste is separated, stacking coarse and fine aggregate separately, solidifying the aggregate by a novel cementing material by a brick making machine, regenerating the brick made of the aggregate, and manufacturing a secondary structure prefabricated part by using recycled concrete.
In this example, the core technical index of the coarse aggregate is shown in the following table:
| particle size | Apparent density of | Mud content | Water absorption rate | Impurity content | Coarse-fine aggregate ratio |
| 20-25mm | 2500-2600kg/m 3 | ≤1％ | ≤4％ | ≤2％ | 60-75％ |
In this example, the core specifications of the fine aggregate are shown in the following table:
| particle size | Apparent density of | Mud content | Water absorption rate | Impurity content | Coarse-fine aggregate ratio |
| 4-5mm | 2500-2600kg/m 2 | ≤1％ | ≤4％ | ≤2％ | 30-45％ |
In this embodiment, the breaker has shaking table vibrations function for shake out the low-level bonding mortar that influences intensity, loose interface will also be shaken out once simultaneously, still has the aggregate in addition and dresses the function, grinds and dresses unnecessary aggregate edges and corners, makes the aggregate surface more level, slick and out.
In this embodiment, moisture protection is required when stacking coarse and fine aggregates separately.
In this embodiment, the novel cementing material is prepared by adding metal oxides and hydroxides into cement components; the additive of the novel cementing material belongs to a high-performance inorganic cementing material, and the cementing material can react with the following two reactions in application: firstly, directly cementing and solidifying soil particles of soil body; secondly, reacting with minerals in the soil to generate a soil gelling material, wherein the main components comprise oxides such as calcium oxide, aluminum oxide, ferric oxide and the like, and excitant and the like; the additive is brick red powdery solid particles and is mixed with trace fine millimeter particles, the whole fineness of the novel cementing material is lower than that of ordinary Portland cement, and the performance of the novel cementing material is higher than that of the ordinary Portland cement.
In this embodiment, the composition ratio and the corresponding compressive strength of the novel cementing material are shown in the following table:
in this embodiment, the composition ratios of the recycled aggregate are as follows:
the invention prepares the recycled aggregate from the waste construction waste through the processes of cracking, crushing, cleaning, screening and the like. Waste building waste concrete, broken bricks and other garbage are crushed by a crusher, and the crushed materials are made into the bricks by a stirrer and a sand making machine, so that the method is reasonably applied to construction of temporary enclosing walls, brick moulding bed masonry, temporary pavement of construction sites and the like with non-main structures. The crusher has an innovative vibrating function of the vibrating table, low-grade adhesive mortar affecting strength can be vibrated out, a loose interface is vibrated out once, the crusher also has an aggregate trimming function, redundant recycled aggregate edges and corners are trimmed, and the aggregate surface is smoother and smoother. In the preparation process of the novel cementing material, metal oxide and hydroxide are added into cement components, so that the adverse effect of the cement on the unsound combination of the recycled aggregate is improved, and the cementing material and the recycled aggregate are tightly combined into a high-strength recycled material.
The mixing ratio of the novel cementing material is determined on an experimental site according to different recycled coarse and fine aggregate conditions; the recycled bricks made of the recycled coarse and fine aggregates have larger internal gaps, and the recycled bricks have common freeze-thawing resistance and are fixedly suggested to be used as materials for temporarily attaching the structure.
The technical means disclosed by the scheme of the invention is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (8)
1. The construction method for solidifying the construction waste recycled aggregate by using the novel cementing material is characterized by sequentially comprising the following steps of: the method comprises the steps of recycling aggregate in construction waste, crushing the solid waste by a crusher after the solid waste is separated, stacking coarse and fine aggregate separately, solidifying the aggregate by a novel cementing material by a brick making machine, regenerating the brick made of the aggregate, and manufacturing a secondary structure prefabricated part by using recycled concrete.
2. The method for curing recycled aggregate of construction waste by using novel cementing materials according to claim 1, wherein the core technical indexes of the coarse aggregate are as follows:
3. The method for curing recycled aggregate of construction waste by using novel cementing materials according to claim 1, wherein the core technical indexes of the fine aggregate are as follows:
4. The method for curing recycled aggregate of construction waste by using the novel cementing material according to claim 1, wherein the crusher has a vibrating function of a vibrating table for vibrating low-grade adhesive mortar affecting strength, and loose interfaces are simultaneously vibrated away once, and further has an aggregate trimming function for grinding off redundant aggregate edges and corners to make the surface of the aggregate smoother and smoother.
5. The method for curing recycled aggregate of construction waste by using novel cementing material according to claim 1, wherein moisture-proof measures are needed when coarse and fine aggregates are stacked separately.
6. The method for curing recycled aggregate of construction waste by using novel cementing material according to claim 1, wherein the novel cementing material is prepared by adding metal oxides and hydroxides into cement components; the additive of the novel cementing material belongs to a high-performance inorganic cementing material, and the cementing material can react with the following two reactions in application: firstly, directly cementing and solidifying soil particles of soil body; secondly, reacting with minerals in the soil to generate a soil gelling substance, wherein the main components comprise calcium oxide, aluminum oxide, ferric oxide and an excitant; the additive is brick red powdery solid particles and is mixed with trace fine millimeter particles, the whole fineness of the novel cementing material is lower than that of ordinary Portland cement, and the performance of the novel cementing material is higher than that of the ordinary Portland cement.
7. The method for curing recycled aggregate of construction waste by using novel cementing materials according to claim 6, wherein the composition ratio and the corresponding compressive strength of the novel cementing materials are as follows:
8. the method for curing recycled aggregate of construction waste by using the novel cementing material according to claim 7, wherein the composition ratio of the recycled aggregate is as follows:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311761424.5A CN117735944A (en) | 2023-12-20 | 2023-12-20 | Construction method for solidifying building rubbish recycled aggregate by using novel cementing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311761424.5A CN117735944A (en) | 2023-12-20 | 2023-12-20 | Construction method for solidifying building rubbish recycled aggregate by using novel cementing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117735944A true CN117735944A (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311761424.5A Pending CN117735944A (en) | 2023-12-20 | 2023-12-20 | Construction method for solidifying building rubbish recycled aggregate by using novel cementing material |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106278350A (en) * | 2016-08-10 | 2017-01-04 | 卓达新材料科技集团威海股份有限公司 | A kind of alkaline residue building waste water-permeable brick and preparation method thereof |
| CN109485283A (en) * | 2018-12-24 | 2019-03-19 | 深圳市绿志新型建材研究院有限公司 | A kind of construction refuse resource processing method |
| CN112645678A (en) * | 2020-12-24 | 2021-04-13 | 深圳市华威环保建材有限公司 | Building waste environment-friendly recycled brick and preparation method thereof |
| CN114133183A (en) * | 2021-12-06 | 2022-03-04 | 惠州森洛克材料科技有限公司 | Concrete with fully recycled aggregate and preparation method thereof |
-
2023
- 2023-12-20 CN CN202311761424.5A patent/CN117735944A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106278350A (en) * | 2016-08-10 | 2017-01-04 | 卓达新材料科技集团威海股份有限公司 | A kind of alkaline residue building waste water-permeable brick and preparation method thereof |
| CN109485283A (en) * | 2018-12-24 | 2019-03-19 | 深圳市绿志新型建材研究院有限公司 | A kind of construction refuse resource processing method |
| CN112645678A (en) * | 2020-12-24 | 2021-04-13 | 深圳市华威环保建材有限公司 | Building waste environment-friendly recycled brick and preparation method thereof |
| CN114133183A (en) * | 2021-12-06 | 2022-03-04 | 惠州森洛克材料科技有限公司 | Concrete with fully recycled aggregate and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 姚文夏: "建筑垃圾再生混凝土的制备和性能研究", 《中国优秀硕士学位论文全文数据库 工程科技II辑》, no. 2017, 15 March 2017 (2017-03-15), pages 038 - 2073 * |
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