CN102775106A - Recyclable red brick sand premixed dry mortar and manufacturing method thereof - Google Patents
Recyclable red brick sand premixed dry mortar and manufacturing method thereof Download PDFInfo
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- CN102775106A CN102775106A CN2012101906921A CN201210190692A CN102775106A CN 102775106 A CN102775106 A CN 102775106A CN 2012101906921 A CN2012101906921 A CN 2012101906921A CN 201210190692 A CN201210190692 A CN 201210190692A CN 102775106 A CN102775106 A CN 102775106A
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- 239000004576 sand Substances 0.000 title claims abstract description 100
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 62
- 239000011449 brick Substances 0.000 title claims abstract description 54
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000004568 cement Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000003607 modifier Substances 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 238000012360 testing method Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 85
- 239000000843 powder Substances 0.000 claims description 30
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- 239000004567 concrete Substances 0.000 claims description 8
- 230000008929 regeneration Effects 0.000 claims description 8
- 238000011069 regeneration method Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 230000001172 regenerating effect Effects 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 5
- 239000011398 Portland cement Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 2
- CBOCVOKPQGJKKJ-UHFFFAOYSA-L Calcium formate Chemical compound [Ca+2].[O-]C=O.[O-]C=O CBOCVOKPQGJKKJ-UHFFFAOYSA-L 0.000 claims description 2
- 239000001828 Gelatine Substances 0.000 claims description 2
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 claims description 2
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 claims description 2
- 235000019738 Limestone Nutrition 0.000 claims description 2
- 239000006004 Quartz sand Substances 0.000 claims description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 2
- 125000001931 aliphatic group Chemical group 0.000 claims description 2
- 229940044172 calcium formate Drugs 0.000 claims description 2
- 235000019255 calcium formate Nutrition 0.000 claims description 2
- 239000004281 calcium formate Substances 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- 230000032798 delamination Effects 0.000 claims description 2
- 229920000159 gelatin Polymers 0.000 claims description 2
- 235000019322 gelatine Nutrition 0.000 claims description 2
- 239000001863 hydroxypropyl cellulose Substances 0.000 claims description 2
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 claims description 2
- 239000004816 latex Substances 0.000 claims description 2
- 229920000126 latex Polymers 0.000 claims description 2
- 239000006028 limestone Substances 0.000 claims description 2
- 229920002521 macromolecule Polymers 0.000 claims description 2
- -1 methyl hydroxypropyl Chemical group 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- 159000000000 sodium salts Chemical class 0.000 claims description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 2
- 235000011152 sodium sulphate Nutrition 0.000 claims description 2
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 15
- 230000018109 developmental process Effects 0.000 description 7
- 239000002699 waste material Substances 0.000 description 7
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to mortar, and particular relates to recyclable red brick sand premixed dry mortar which is applicable to building and plastering at normal temperature and low temperature, is manufactured by crushing red brick recycled in a building removing process and can replace natural sand. The recyclable red brick sand premixed dry mortar is prepared by mixing cement, river sand or sea sand and adding less additive, wherein the recyclable red brick sand partially or entirely replaces the river sand or sea sand, the replacement rate of the recyclable red brick sand is 30-100%, and a certain amount of modifier is added. Specifically, the recyclable red brick sand premixed dry mortar comprises the materials in which the mass ratio of cement to river sand(or sea sand) to recyclable red brick sand to a modifier is 1: (1-6.0): (0-3.0): (0.05-0.2). The production process comprises the steps of: (1) detecting and drying raw materials; (2) preparing the modifier; (3) evenly mixing the cement, natural sand and/or recyclable red brick sand and modifier according to proportion to obtain the finished recyclable red brick sand premixed dry mortar; (4) testing consistency, layering degree and stability; and (5) metering and putting in storage.
Description
Technical Field
The invention belongs to the building material concrete category, and relates to dry powder mortar with high viscosity and low shrinkage performance manufactured by utilizing building waste recycled red brick sand and a manufacturing method thereof.
Technical Field
With the development of modern housing construction and the increasing attention of people to living environment, the construction mortar used in large quantity and wide range in the construction engineering is also being renovated to adapt to the new development. Because the traditional mortar is stirred on site, the quality of the traditional mortar cannot be well and effectively controlled all the time due to the influence of human factors. Although the mortar is widely used in the building engineering, the fine requirements of modern people on living environment and living conditions cannot be met due to the defects of the mortar, so that the traditional mortar is bound to exit from the historical stage of the building engineering. In order to meet the development requirements of the modern building industry, a novel building mortar with excellent characteristics is being developed vigorously, and the novel building mortar is dry powder mortar. The dry powder mortar is also called dry mixed mortar or dry mixed mortar material, and is a new building mortar variety produced by special manufacturers and used in construction sites. The mortar is a mortar product which is prepared by drying, metering and mixing a cementing material, a fine aggregate, an admixture, a chemical reagent and the like, uniformly mixing the materials in a mixing system, and then bagging or transporting the materials in bulk to a construction site, adding water and stirring the materials for direct use.
The dry powder mortar has a plurality of advantages as a substitute product of the traditional mortar:
(1) the construction quality is easy to be ensured. The mortar with different purposes, such as masonry mortar, plastering mortar, ground mortar and the like, has different requirements on the special performances of shrinkage resistance, cracking resistance, heat preservation, moisture resistance and the like of the material, and has different construction performance required by construction. The dry powder mortar reduces the influence of human factors and ensures the stability of the field use quality through strictly controlling and testing the proportion during production.
(2) The construction benefit is good. The use of the dry mortar can improve the construction speed.
(3) Environmental protection and waste utilization. The raw materials for producing the dry powder mortar are mostly industrial waste materials.
(4) Improve the working condition of workers.
Meanwhile, with the rapid development of economy and the continuous improvement of the living standard of people, a large number of buildings are required to be dismantled in each big city of China every day. The disposal of construction waste generated after the demolition of buildings has become a serious social and environmental problem and seriously affects the national sustainable development strategy. At present, most of buildings dismantled in major and middle cities in China are of brick-wood structures, and red bricks in the buildings of the brick-wood structures account for about 80 percent of the total amount of building materials. The recycled materials of the red bricks after crushing and screening can be used for partially replacing natural aggregates in concrete or used as road foundations, and the recycled materials are also called recycled aggregates. Recycled aggregate has been successfully used in the building industry in developed countries in europe and america, but is mainly applied to the basis of non-structural concrete and roads; the application of the recycled aggregate in the structural concrete is limited to be within 20 percent, and the content of the red bricks is strictly required to be within 5 percent, which is mainly because the recycled aggregate has lower strength, porosity and higher water absorption compared with natural stone, so that the flowability in the structural concrete is difficult to control, and the application is limited. The new technology for developing and recycling the high-content red brick construction waste is used for preparing the widely used dry powder mortar, so that the application range of the recycled aggregate can be expanded, the resource rate of the construction waste is improved, and the additional value of the construction material product can be improved.
In addition, with the rapid development of economy, river sand resources in China are close to withering, and the utilization of sea sand resources is imminent. However, the sea sand cannot be used in structural concrete, mainly because chloride ions in the sea sand can corrode reinforcing steel bars to cause rusting, while the dry powder mortar is generally used for masonry and plastering of non-reinforcing steel bar-containing construction parts (such as non-bearing walls) and cannot be influenced by the rusting of the reinforcing steel bars, so the sea sand can be safely used in the dry powder mortar.
Disclosure of Invention
The invention aims to provide a method for manufacturing masonry and plastering dry powder mortar by utilizing recycled red brick sand and sea sand which are prepared by crushing and screening red bricks in construction wastes. The method uses the regenerated red brick sand and the sea sand, so that a new way is provided for recycling red bricks which are waste materials of building demolition, and the sea sand is used for replacing river sand to open up a new sand resource for the building industry and save natural river sand resources. Therefore, the invention is a new technology which accords with the strategy of sustainable development.
The regenerated red brick sand dry powder mortar manufactured by the technology provided by the invention comprises the following raw materials in dosage range:
cement/sand: 1/1-1/6;
regeneration of red brick powder: accounting for 0-30% of the cement consumption;
Regenerating red brick sand: accounting for 0-100% of the total sand amount;
lignocellulose: the total amount of the materials is as follows: 0 to 1.0 percent;
and the ratio of river sand or sea sand to the regenerated red brick sand is as follows:
river sand or sea sand: 0 to 100 percent of the total amount of the organic solvent,
or the regeneration red brick sand: 0 to 100 percent;
modifying agent: accounting for 0.01 to 2.5 percent of the using amount of the aggregate;
the cement is any cement commonly used in concrete technology, including general portland cement, limestone portland cement, white cement, and the like.
The red brick powder is ground clay brick, and the particle size range is less than or equal to 0.075 mm;
the river sand is common river sand or quartz sand; the sea sand is natural sea sand;
the grain size range of the river sand and the sea sand is less than 2.36 millimeters;
the particle size range of the regenerated red brick sand is 0.15-2.36 mm;
in the best embodiment of the invention, the dosage range of the raw materials is as follows:
cement/sand: 1/2-1/5;
regeneration of red brick powder: accounting for 0-20% of the cement consumption;
regenerating red brick sand: 30 to 50 percent of the total grain size of the mixture, and the grain size range is 0.15 to 2.36 millimeters
Lignocellulose: accounting for 0.5 percent of the total amount of the materials;
and the ratio of river sand or sea sand to the recycled red brick sand is as follows:
river sand or sea sand: 50 to 70 percent of the total weight of the mixture,
Or the regeneration red brick sand: 30% -50%; modifying agent: accounts for 0.02 to 1.5 percent of the using amount of the aggregate
The invention provides a method for manufacturing regenerative red brick sand dry powder mortar.
The regenerated red brick sand dry powder mortar comprises the following components in percentage by mass: the ratio of cement to river sand (or sea sand) to regenerated red brick sand to modifier is 1: 1-6.0: 0-3.0: 0.05-0.2. The production process comprises the following steps: (1) detecting and drying raw materials; (2) preparing a modifier; (3) uniformly mixing cement, natural sand and/or regenerated red brick sand and a modifier in proportion to prepare a finished product of regenerated red brick sand dry-mixed mortar; (4) testing the consistency, the degree of delamination and the stability; (5) and metering, packaging and warehousing or warehousing in bulk to obtain the dry powder mortar provided by the invention.
The chemical modifier used for the dry powder mortar provided by the invention is specially prepared, and the specific preparation method comprises the following steps:
the chemical modifier required by the invention can be prepared by drying Novena28 macromolecule water-soluble gelatine powder (25%), methyl hydroxyethyl cellulose ether (MHEC) and methyl hydroxypropyl cellulose ether (15%), redispersible latex powder (45%), sodium salt of aliphatic sulfonic acid, sodium sulfate (10%) and calcium formate (5%) and then stirring in a stirrer for 15 minutes.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
Example 1
It can be seen from the proportions listed in table 1 and the characteristics of the produced dry mortar that the strength of the mortar is reduced due to the increase of the use amount of the regenerated red brick sand, but the strength of all the dry mortar still reaches more than 35MPa, and the requirements on the strength in the national standard are completely met. Because wood fiber is doped, the dry shrinkage rate of the dry powder mortar is far lower than 0.06 percent, and the consistency and the layering degree meet the requirements of national standards on masonry mortar and plastering mortar.
TABLE 1 formulation of dry mortar and test results
Example 2
TABLE 2 Dry powder mortar compounding ratio and test results
It can be seen from the listed mixture ratios in table 2 and the characteristics of the manufactured dry-mixed mortar that the strength of the dry-mixed mortar is reduced due to the reduction of the cement amount, but the strength of all the dry-mixed mortars still reaches more than 10MPa, and the requirements on the strength in the national standard are completely met.
Example 3
It can be seen from the listed mixture ratios and the tested characteristics of the dry mortar in table 3 that the performance of the dry mortar is not greatly changed after the river sand is replaced by the sea sand. All the properties of the dry-mixed mortar meet the requirements of national standards.
TABLE 3 Dry powder mortar compounding ratio and test results
Remarking: national Standard premixed mortar (GB/T25181-2010).
Claims (4)
1. A regenerative red brick sand dry powder mortar and a manufacturing method thereof comprise the following steps:
the regenerated red brick sand dry powder mortar comprises the following components in percentage by mass: the ratio of cement to river sand (or sea sand) to regenerated red brick sand to modifier is 1: 1-6.0: 0-3.0: 0.05-0.2. Wherein,
cement/sand: 1/1-1/6;
regeneration of red brick powder: accounting for 0-30% of the cement consumption;
regenerating red brick sand: accounting for 0-100% of the total sand amount;
lignocellulose: accounting for 0-1.0% of the total material;
and the ratio of river sand or sea sand to the regenerated red brick sand is as follows:
river sand or sea sand: 0 to 100 percent of the total amount of the organic solvent,
or the regeneration red brick sand: 0 to 100 percent;
modifying agent: accounting for 0.01 to 2.5 percent of the using amount of the aggregate;
the cement is any cement commonly used in concrete technology, including general portland cement, limestone portland cement, white cement, and the like.
The red brick powder is ground clay brick, and the particle size range is less than or equal to 0.075 mm;
the river sand is common river sand or quartz sand; the sea sand is natural sea sand;
the grain size range of the river sand and the sea sand is less than 2.36 millimeters;
the particle size range of the regenerated red brick sand is 0.15-2.36 mm;
2. the manufacturing method according to claim 1, wherein in the most preferred embodiment of the present invention, the amount of the raw material is in the range of:
Cement/sand: 1/2-1/5;
regeneration of red brick powder: accounting for 0-20% of the cement consumption;
regenerating red brick sand: 30 to 50 percent of the total grain size of the mixture, and the grain size range is 0.15 to 2.36 millimeters
Lignocellulose: accounting for 0.5 percent of the total amount of the materials;
and the ratio of river sand or sea sand to the recycled red brick sand is as follows:
river sand or sea sand: 50 to 70 percent of the total weight of the mixture,
or the regeneration red brick sand: 30% -50%;
modifying agent: accounts for 0.02 to 1.5 percent of the using amount of the aggregate
3. The method according to claim 1, wherein the chemical modifier is prepared by a method comprising: the chemical modifier required by the invention can be prepared by drying Novena28 macromolecule water-soluble gelatine powder (25%), methyl hydroxyethyl cellulose ether (MHEC) and methyl hydroxypropyl cellulose ether (15%), redispersible latex powder (45%), sodium salt of aliphatic sulfonic acid, sodium sulfate (10%) and calcium formate (5%) and then stirring in a stirrer for 15 minutes.
4. The manufacturing method according to claim 1, wherein the production process of the dry mortar is as follows: (1) detecting and drying raw materials; (2) preparing a modifier; (3) uniformly mixing cement, natural sand and/or red brick sand and a modifier in proportion to prepare a finished product of the red brick sand dry-mixed mortar; (4) testing the consistency, the degree of delamination and the stability; (5) and (6) metering and warehousing.
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| CN201210190692.1A CN102775106B (en) | 2012-06-11 | 2012-06-11 | A kind of regeneration common brick sand dry powder mortar and manufacture method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210190692.1A CN102775106B (en) | 2012-06-11 | 2012-06-11 | A kind of regeneration common brick sand dry powder mortar and manufacture method thereof |
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| CN102775106A true CN102775106A (en) | 2012-11-14 |
| CN102775106B CN102775106B (en) | 2016-05-18 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105418011A (en) * | 2015-11-24 | 2016-03-23 | 中建商品混凝土西安有限公司 | Wet-mixed mortar doped with recycled fine aggregate |
| CN105948653A (en) * | 2016-05-10 | 2016-09-21 | 厦门天润锦龙建材有限公司 | Recycled wet-mixed mortar and preparation method thereof |
| CN106187064A (en) * | 2016-07-06 | 2016-12-07 | 德清扬泰建筑材料有限公司 | The method of interior wall dry powder and mortar prepared by a kind of reclaimed materials |
| CN107285680A (en) * | 2017-06-21 | 2017-10-24 | 建积（深圳）环保建材科技有限公司 | Can high-efficient purification air environmentally friendly paving brick and its manufacture method |
| CN108238771A (en) * | 2016-12-27 | 2018-07-03 | 越艳 | A kind of product about the admittedly solidifying agent stable regeneration aggregate of liquid |
| CN108546021A (en) * | 2018-05-22 | 2018-09-18 | 浙江省通用砂浆研究院 | A kind of assembled architecture low-carbon environment-friendly regeneration photocatalysis decoration mortar and preparation method thereof |
| CN108715529A (en) * | 2018-08-15 | 2018-10-30 | 同济大学 | Premixing sea sand masonry mortar material and preparation method thereof |
| CN109336475A (en) * | 2018-10-12 | 2019-02-15 | 东南大学 | A kind of 3D printing alkali-activated carbonatite cementitious material |
| CN110054426A (en) * | 2018-01-17 | 2019-07-26 | 兴磊资源回收股份有限公司 | Brick sand recovery method and its application structure |
| CN112174591A (en) * | 2020-08-26 | 2021-01-05 | 北京鼎创科技环保集团有限公司 | Production of ultra-high performance concrete by using construction waste micropowder |
| CN113402220A (en) * | 2021-01-21 | 2021-09-17 | 山东科技大学 | Application of waste clay brick powder in preparation of plastering mortar and preparation method thereof |
| CN114368953A (en) * | 2022-02-16 | 2022-04-19 | 建研建硕(北京)科技有限公司 | Low-carbon green ultra-high performance concrete and preparation method thereof |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105418011A (en) * | 2015-11-24 | 2016-03-23 | 中建商品混凝土西安有限公司 | Wet-mixed mortar doped with recycled fine aggregate |
| CN105948653A (en) * | 2016-05-10 | 2016-09-21 | 厦门天润锦龙建材有限公司 | Recycled wet-mixed mortar and preparation method thereof |
| CN105948653B (en) * | 2016-05-10 | 2018-06-15 | 厦门天润锦龙建材有限公司 | A kind of regeneration wet mixing mortar and preparation method thereof |
| CN106187064A (en) * | 2016-07-06 | 2016-12-07 | 德清扬泰建筑材料有限公司 | The method of interior wall dry powder and mortar prepared by a kind of reclaimed materials |
| CN108238771A (en) * | 2016-12-27 | 2018-07-03 | 越艳 | A kind of product about the admittedly solidifying agent stable regeneration aggregate of liquid |
| CN107285680A (en) * | 2017-06-21 | 2017-10-24 | 建积（深圳）环保建材科技有限公司 | Can high-efficient purification air environmentally friendly paving brick and its manufacture method |
| CN110054426A (en) * | 2018-01-17 | 2019-07-26 | 兴磊资源回收股份有限公司 | Brick sand recovery method and its application structure |
| CN108546021A (en) * | 2018-05-22 | 2018-09-18 | 浙江省通用砂浆研究院 | A kind of assembled architecture low-carbon environment-friendly regeneration photocatalysis decoration mortar and preparation method thereof |
| CN108546021B (en) * | 2018-05-22 | 2021-08-06 | 浙江省通用砂浆研究院 | Low-carbon environment-friendly regenerated photocatalytic decorative mortar for fabricated building and preparation method thereof |
| CN108715529A (en) * | 2018-08-15 | 2018-10-30 | 同济大学 | Premixing sea sand masonry mortar material and preparation method thereof |
| CN109336475A (en) * | 2018-10-12 | 2019-02-15 | 东南大学 | A kind of 3D printing alkali-activated carbonatite cementitious material |
| CN112174591A (en) * | 2020-08-26 | 2021-01-05 | 北京鼎创科技环保集团有限公司 | Production of ultra-high performance concrete by using construction waste micropowder |
| CN113402220A (en) * | 2021-01-21 | 2021-09-17 | 山东科技大学 | Application of waste clay brick powder in preparation of plastering mortar and preparation method thereof |
| CN114368953A (en) * | 2022-02-16 | 2022-04-19 | 建研建硕(北京)科技有限公司 | Low-carbon green ultra-high performance concrete and preparation method thereof |
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| CN102775106B (en) | 2016-05-18 |
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