CN111646749A - Dry-mixed common ground mortar based on construction solid waste recycled fine aggregate - Google Patents
Dry-mixed common ground mortar based on construction solid waste recycled fine aggregate Download PDFInfo
- Publication number
- CN111646749A CN111646749A CN202010460153.XA CN202010460153A CN111646749A CN 111646749 A CN111646749 A CN 111646749A CN 202010460153 A CN202010460153 A CN 202010460153A CN 111646749 A CN111646749 A CN 111646749A
- Authority
- CN
- China
- Prior art keywords
- fine aggregate
- recycled fine
- grade
- dry
- solid waste
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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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
- 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
- C04B28/04—Portland cements
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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
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses dry-mixed common ground mortar based on construction solid waste recycled fine aggregate, which comprises the following components in parts by weight (kg/t): 190 common portland cement grade 42.5, 50 secondary fly ash grade, 800 recycled fine aggregate grade 750, 0.8-1 hydroxypropyl methyl cellulose, 8-10 redispersible latex powder, 0.16-0.2 defoamer and 1.5-2.5 recycled fiber. The recycled fine aggregate is formed by crushing waste concrete, and has a particle size of less than 4.75mm, wherein the content of particles with a particle size of 2.36-4.75mm is 10-15%, and the content of particles with a particle size of 0.075-2.36mm is 70-80%. The invention utilizes the building concrete waste to change waste into valuable to replace natural sand, thereby not only protecting the natural environment, but also reducing the cost of the mortar.
Description
Technical Field
The invention relates to mortar, in particular to dry-mixed common ground mortar based on construction solid waste recycled fine aggregate, and belongs to the field of building materials.
Background
The dry-mixed ground mortar is also called dry-mixed mortar, and is formed by physically mixing dry-screened aggregate (such as natural sand), inorganic cementing material (such as cement), additive (such as polymer) and the like according to a certain proportion. With the development of infrastructure construction, the demand for natural sand resources is increasingly vigorous, however, the natural sand resources are non-renewable resources in a short time, and the natural sand resources are gradually lacking due to the fact that the country forbids the exploitation of natural sand in river reach in plain text. On the other hand, huge construction waste, particularly concrete waste, has become a huge burden for economic and social development in China, and under the comprehensive action of natural resources and environmental protection problems, resource recycling has become the main melody for social development at present. Therefore, it is necessary to research and use the concrete waste to replace the natural sand, so as to alleviate the shortage of natural sand resources.
Disclosure of Invention
The purpose of the invention is as follows: solid waste is utilized, and the environment is protected.
In order to achieve the purpose, the invention adopts the following technical scheme: a dry-mixed common ground mortar based on construction solid waste recycled fine aggregate is characterized in that the dosage and mixing ratio (kg/t) of each component is as follows:
190 common portland cement grade 42.5, 50 secondary fly ash grade, 800 recycled fine aggregate grade 750, 0.8-1 hydroxypropyl methyl cellulose, 8-10 redispersible latex powder, 0.16-0.2 defoamer and 1.5-2.5 recycled fiber.
The recycled fine aggregate is formed by crushing waste concrete, and has a particle size of less than 4.75mm, wherein the content of particles with a particle size of 2.36-4.75mm is 10-15%, and the content of particles with a particle size of 0.075-2.36mm is 70-80%.
The hydroxypropyl methyl cellulose can improve the water-retaining thickening effect of the mortar.
The regenerated fiber can improve the crack resistance of the mortar.
The redispersible latex powder can improve the bonding strength, crack resistance and impact resistance of the mortar.
The defoaming agent is a solid organic silicon defoaming agent.
Compared with the prior art, the invention has the beneficial effects that: the waste building concrete is used to replace natural sand, so that the natural environment is protected and the cost of mortar is reduced.
Detailed Description
Example 1
A dry-mixed common ground mortar based on construction solid waste recycled fine aggregate comprises the following components: 140kg of 42.5-grade ordinary portland cement, 50kg of fly ash, 800kg of recycled fine aggregate, 0.8kg of hydroxypropyl methyl cellulose, 8kg of redispersible latex powder, 160g of defoaming agent, 1.5kg of recycled fiber and strength grade M15.
Example 2
A dry-mixed common ground mortar based on construction solid waste recycled fine aggregate comprises the following components: 162kg of 42.5-grade ordinary portland cement, 50kg of fly ash, 776kg of recycled fine aggregate, 0.9kg of hydroxypropyl methyl cellulose, 9kg of redispersible latex powder, 180g of defoaming agent, 2.0kg of recycled fiber and strength grade M20.
Example 3
A dry-mixed common ground mortar based on construction solid waste recycled fine aggregate comprises the following components: 186kg of 42.5-grade ordinary portland cement, 50kg of fly ash, 750kg of recycled fine aggregate, 1kg of hydroxypropyl methyl cellulose, 10kg of redispersible latex powder, 200g of defoaming agent, 2.5kg of recycled fiber and strength grade M25.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made in the spirit of the present invention are included in the scope of the present invention.
Claims (5)
1. A dry-mixed common ground mortar based on construction solid waste recycled fine aggregate is characterized in that the dosage and mixing ratio (kg/t) of each component is as follows: 190 common portland cement grade 42.5, 50 secondary fly ash grade, 800 recycled fine aggregate grade 750, 0.8-1 hydroxypropyl methyl cellulose, 8-10 redispersible latex powder, 0.16-0.2 defoamer and 1.5-2.5 recycled fiber.
2. The dry-mixed ordinary ground mortar based on the construction solid waste recycled fine aggregate of claim 1, which is characterized in that: the recycled fine aggregate is formed by crushing waste concrete, and has a particle size of less than 4.75mm, wherein the content of particles with a particle size of 2.36-4.75mm is 10-15%, and the content of particles with a particle size of 0.075-2.36mm is 70-80%.
3. The dry-mixed ordinary ground mortar based on the construction solid waste recycled fine aggregate of claim 1, which is characterized in that the mixing ratio (kg/t) of the components is as follows: 140kg of 42.5-grade ordinary portland cement, 50kg of fly ash, 800kg of recycled fine aggregate, 0.8kg of hydroxypropyl methyl cellulose, 8kg of redispersible latex powder, 160g of defoaming agent and 1.5kg of recycled fiber.
4. The dry-mixed ordinary ground mortar based on the construction solid waste recycled fine aggregate of claim 1, which is characterized in that the mixing ratio (kg/t) of the components is as follows: 162kg of 42.5-grade ordinary portland cement, 50kg of fly ash, 776kg of recycled fine aggregate, 0.9kg of hydroxypropyl methyl cellulose, 9kg of redispersible latex powder, 180g of defoaming agent and 2.0kg of recycled fiber.
5. The dry-mixed ordinary ground mortar based on the construction solid waste recycled fine aggregate of claim 1, which is characterized in that the mixing ratio (kg/t) of the components is as follows: 186kg of 42.5-grade ordinary portland cement, 50kg of fly ash, 750kg of recycled fine aggregate, 1kg of hydroxypropyl methyl cellulose, 10kg of redispersible latex powder, 200g of defoaming agent and 2.5kg of recycled fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010460153.XA CN111646749A (en) | 2020-06-01 | 2020-06-01 | Dry-mixed common ground mortar based on construction solid waste recycled fine aggregate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010460153.XA CN111646749A (en) | 2020-06-01 | 2020-06-01 | Dry-mixed common ground mortar based on construction solid waste recycled fine aggregate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111646749A true CN111646749A (en) | 2020-09-11 |
Family
ID=72344680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010460153.XA Withdrawn CN111646749A (en) | 2020-06-01 | 2020-06-01 | Dry-mixed common ground mortar based on construction solid waste recycled fine aggregate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111646749A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114315285A (en) * | 2022-01-25 | 2022-04-12 | 山东大元实业股份有限公司 | Method for producing dry-mixed mortar by using industrial solid wastes |
| CN114394792A (en) * | 2021-12-06 | 2022-04-26 | 浙江益森科技股份有限公司 | Concrete recycled fine aggregate masonry mortar and preparation method thereof |
-
2020
- 2020-06-01 CN CN202010460153.XA patent/CN111646749A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114394792A (en) * | 2021-12-06 | 2022-04-26 | 浙江益森科技股份有限公司 | Concrete recycled fine aggregate masonry mortar and preparation method thereof |
| CN114315285A (en) * | 2022-01-25 | 2022-04-12 | 山东大元实业股份有限公司 | Method for producing dry-mixed mortar by using industrial solid wastes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200911 |