CN108640608A - A kind of construction refuse regenerated fine aggregate substitutes natural sand and prepares dry powder and mortar formula and method - Google Patents
A kind of construction refuse regenerated fine aggregate substitutes natural sand and prepares dry powder and mortar formula and method Download PDFInfo
- Publication number
- CN108640608A CN108640608A CN201810577100.9A CN201810577100A CN108640608A CN 108640608 A CN108640608 A CN 108640608A CN 201810577100 A CN201810577100 A CN 201810577100A CN 108640608 A CN108640608 A CN 108640608A
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- China
- Prior art keywords
- fine aggregate
- construction refuse
- refuse regenerated
- additive
- dry powder
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Classifications
-
- 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
-
- 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
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A kind of construction refuse regenerated fine aggregate substitutes natural sand and prepares dry powder and mortar formula and method：Regenerating dry powder and mortar each component mass percent is：42.5 Portland cements 10 ~ 15%, second class powered coal ash 5 ~ 10%, construction refuse regenerated fine aggregate 70 ~ 85%, 1#Additive 0.1 ~ 0.5%, 2#Additive 0.02 ~ 0.05%, 3#Additive 0.02 ~ 0.05%, wherein the sum of 42.5 Portland cements, construction refuse regenerated fine aggregate, second class powered coal ash mass percent are 100%；Technical solution proposed by the present invention has reached good effect：Construction refuse regenerated fine aggregate substitutes natural sand and prepares dry powder and mortar formula by being reasonably formulated and method completely, the full utilization to building waste is realized, optimizes recycled fine aggregate grain composition, under the premise of ensureing mortar quality, production cost is reduced, better benefit is brought to enterprise.
Description
Technical field
The invention belongs to building material technologies and construction refuse resource to utilize field, provide a kind of construction refuse regenerated thin
Aggregate substitutes natural sand and prepares dry powder and mortar formula and method.
Background technology
With the speed-raising of the quickening of national Development of China's Urbanization, urban construction and transformation, the yield of building waste is being passed year by year
Increase, building waste standing crop is about at 25 ~ 3,000,000,000 tons, but resource utilization rate is relatively low, with America and Europe, Japan, South Korea etc. 90% or more
Utilization rate differs greatly, and mostly based on filling in the form of the low sides recycling such as road, lacks feasible high-end utilization technology；
River regulation is stringent and mine resources are rectified and increased, and river sand allowable exploitation is fewer and fewer, and Machine-made Sand production cost is higher and higher, day
Right fine aggregate supply is becoming tight day；107056178 A of Chinese patent CN disclose a kind of environmentally friendly mortar, broken with building castoff
Bits substitute 20 ~ 40% yellow sands and prepare dry powder and mortar, and 2.4 ~ 2.8, clay content is not more than building castoff clast fineness modulus
1.2%.The patent requires height to building castoff clast clay content, and production technology is complicated, needs to improve original production process, add
Two construction waste material bins；107032687 A of Chinese patent CN disclose a kind of utilization building waste production sponge city use
High-elastic mould pervious environment protection mortar and preparation method thereof, building waste grain size is two ranges of 15 ~ 20mm and 20 ~ 30mm, after drying
It is impregnated in sodium aluminosilicate solution and activates, with Machine-made Sand, cement mixing and stirring after activation, add aqueous epoxy resins high bonding
Branch cementitious matter, continues to stir, adds carbon fibre web, rubber powder, quaternary ammonium salt-modified bentonite, polymer dispersion powder, cellulose
Ether, lignocellulosic and water-reducing agent additive, nano-titanium dioxide ultraviolet absorber and water are uniformly mixed, are utilized building
Rubbish produces the high-elastic mould pervious environment protection mortar in sponge city；The above patent formulation can only substitute fraction yellow sand, and to original
Material requirements is high, complex process；Therefore need a kind of novel formula solve existing formula yellow sand substitution rate it is low, to raw material
It is required that the problem of harsh and complex process.
Invention content
The present invention, which proposes, proposes that a kind of construction refuse regenerated fine aggregate substitutes natural sand and prepares dry powder and mortar formula and side
Method, for solving the problems, such as that the yellow sand substitution rate of existing formula and method is low, and complex process harsh to raw material requirements.
The technical solution adopted in the present invention is：
A kind of construction refuse regenerated fine aggregate substitutes natural sand and prepares dry powder and mortar formula：Regenerate dry powder and mortar each component quality hundred
Point ratio is：42.5 Portland cements 10 ~ 15%, second class powered coal ash 5 ~ 10%, construction refuse regenerated fine aggregate 70 ~ 85%, 1#Add
Add agent 0.1 ~ 0.5%, 2#Additive 0.02 ~ 0.05%, 3#Additive 0.02 ~ 0.05%, wherein 42.5 Portland cements, building
The sum of garbage regeneration fine aggregate, second class powered coal ash mass percent are 100%.
The additive is total to three classes, wherein 1#Additive is dispersibility latex powder and cellulose ether mixture, 2#Addition
Agent is anti-sag agent, 3#Additive is retarder.
The construction refuse regenerated fine aggregate be drying granularity be less than 4.75mm particles, control 2.36 ~
For 4.75mm grain sizes 10 ~ 20%, 0.075mm or less grain sizes are not more than 12%.
A kind of construction refuse regenerated fine aggregate substitutes the method that natural sand prepares dry powder and mortar and includes the following steps：
1. the construction refuse regenerated aggregate that 0 ~ 5mm has been crushed is taken to be dried；
2. screening out the super particles of 4.75mm or more using multi-stage oscillating screen after drying；Part 2.36 ~ 4.75mm particles are rejected, are made
Its content is 10 ~ 20%；0.075mm or less granule contents are not more than 12%；
3. weighing the construction refuse regenerated fine aggregate 70 ~ 85% handled well, 42.5 Portland cements 10 ~ 15%, two level fine coal
Ash 5 ~ 10%, 1#Additive 0.1 ~ 0.5%, 2#Additive 0.02 ~ 0.05%, 3#Blender stirring 4 is added in additive 0.02 ~ 0.05%
~ 5min obtains finished product regeneration dry powder and mortar, in bulk or packed.
Technical solution proposed by the present invention has reached good effect：A kind of construction refuse regenerated fine aggregate substitutes completely
Natural sand prepares dry powder and mortar formula by being reasonably formulated and method, realizes the height utilization to building waste, optimization is again
Raw fine aggregate grain composition, while multiple additives are added, the dry powder and mortar of good quality is obtained, and simplify technique, you can have
Effect promotes the recycling of building waste, reduces the consumption to natural sand, and can be dropped under the premise of ensureing mortar quality
Low production cost, better benefit is brought to enterprise.
Description of the drawings
Fig. 1 is the regeneration dry powder and mortar preparation method schematic diagram of the present invention.
Specific implementation mode
The present invention is illustrated in conjunction with attached drawing 1.
Embodiment 1：
Construction refuse regenerated fine aggregate is made of common brick and concrete particle, and grain size is 0 ~ 4.75mm, wherein 2.36 ~ 4.75mm
Grain content is 10%, and 0.075mm or less granule contents are 8%；Regenerating mortar each component mass percent is：42.5 normal silicates
Cement 12.5%, second class powered coal ash 6%, construction refuse regenerated fine aggregate 81.5%, 1#Additive 0.1%, 2#Additive 0.02%, 3#Add
Add agent 0.02%；It is 23% to regenerate dry powder and mortar water requirement；
Embodiment 2：
Construction refuse regenerated fine aggregate is made of common brick and concrete particle, and grain size is 0 ~ 4.75mm, wherein 2.36 ~ 4.75mm
Grain content is 12%, and 0.075mm or less granule contents are 10%；Regenerating mortar each component mass percent is：42.5 common silicic acid
Salt cement 14%, second class powered coal ash 10%, construction refuse regenerated fine aggregate 76%, 1#Additive 0.2%, 2#Additive 0.03%, 3#Add
Add agent 0.04%；It is 25% to regenerate dry powder and mortar water requirement；
Embodiment 3：
Construction refuse regenerated fine aggregate is made of common brick and concrete particle, and grain size is 0 ~ 4.75mm, wherein 2.36 ~ 4.75mm
Grain content is 15%, and 0.075mm or less granule contents are 6%；Regenerating mortar each component mass percent is：42.5 normal silicates
Cement 15%, second class powered coal ash 10%, construction refuse regenerated fine aggregate 75%, 1#Additive 0.3%, 2#Additive 0.04%, 3#Addition
Agent 0.05%；It is 27% to regenerate dry powder and mortar water requirement；
According to GB/T 25181-2010《Premixing mortar》, detect the initial consistency after regeneration dry powder and mortar adds water to stir, water conservation
Rate, 28d compression strength, 2h consistency loss late, 14d tensile bond strengths, as a result as follows：
By upper table testing result it is found that prepared regeneration dry powder and mortar meets GB/T 25181-2010《Premixing mortar》To dry powder
Masonry mortar and dry-mix requirement.
Claims (4)
1. a kind of construction refuse regenerated fine aggregate substitutes natural sand and prepares dry powder and mortar formula, it is characterized in that：It is construction refuse regenerated
Fine aggregate replacement natural sand prepares dry powder and mortar each component mass percent and is：42.5 Portland cements 10 ~ 15%, two level
Flyash 5 ~ 10%, construction refuse regenerated fine aggregate 70 ~ 85%, 1#Additive 0.1 ~ 0.5%, 2#Additive 0.02 ~ 0.05%, 3#Add
Add agent 0.02 ~ 0.05%, wherein 42.5 Portland cements, construction refuse regenerated fine aggregate, second class powered coal ash mass percent
The sum of be 100%.
2. a kind of construction refuse regenerated fine aggregate according to claim 1 substitutes natural sand and prepares dry powder and mortar formula and side
Method, it is characterized in that：The additive is total to three classes, wherein 1#Additive is dispersibility latex powder and cellulose ether mixture, 2#
Additive is anti-sag agent, 3#Additive is retarder.
3. a kind of construction refuse regenerated fine aggregate according to claim 1 substitutes natural sand and prepares dry powder and mortar formula and side
Method, it is characterized in that：The construction refuse regenerated fine aggregate be drying granularity be less than 4.75mm particles, control 2.36 ~
For 4.75mm grain sizes 10 ~ 20%, 0.075mm or less grain sizes are not more than 12%.
4. a kind of construction refuse regenerated fine aggregate substitutes the method that natural sand prepares dry powder and mortar, it is characterized in that including following step
Suddenly：
1. the construction refuse regenerated aggregate that 0 ~ 5mm has been crushed is taken to be dried；
2. screening out the super particles of 4.75mm or more using multi-stage oscillating screen after drying；Part 2.36 ~ 4.75mm particles are rejected, are made
Its content is 10 ~ 20%；0.075mm or less granule contents are not more than 12%；
3. weighing the construction refuse regenerated fine aggregate 70 ~ 85% handled well, 42.5 Portland cements 10 ~ 15%, two level fine coal
Ash 5 ~ 10%, 1#Additive 0.1 ~ 0.5%, 2#Additive 0.02 ~ 0.05%, 3#Blender stirring 4 is added in additive 0.02 ~ 0.05%
~ 5min obtains finished product regeneration dry powder and mortar, in bulk or packed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810577100.9A CN108640608A (en) | 2018-06-07 | 2018-06-07 | A kind of construction refuse regenerated fine aggregate substitutes natural sand and prepares dry powder and mortar formula and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810577100.9A CN108640608A (en) | 2018-06-07 | 2018-06-07 | A kind of construction refuse regenerated fine aggregate substitutes natural sand and prepares dry powder and mortar formula and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108640608A true CN108640608A (en) | 2018-10-12 |
Family
ID=63751955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810577100.9A Pending CN108640608A (en) | 2018-06-07 | 2018-06-07 | A kind of construction refuse regenerated fine aggregate substitutes natural sand and prepares dry powder and mortar formula and method |
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| Country | Link |
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| CN (1) | CN108640608A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109761545A (en) * | 2019-03-27 | 2019-05-17 | 桐乡桐化建材有限公司 | A kind of recycled fine aggregate masonry mortar |
| CN110759684A (en) * | 2019-12-02 | 2020-02-07 | 中建长远建设有限公司 | Double-aggregate cement mortar and preparation method thereof |
| CN111662045A (en) * | 2020-07-01 | 2020-09-15 | 山东摩泥卡环保科技有限公司 | Construction waste desulfurized gypsum double-waste backfill self-leveling method |
| CN112592131A (en) * | 2020-12-23 | 2021-04-02 | 许昌金科资源再生股份有限公司 | Ultrathin layer masonry mortar special for sintered blocks prepared from recycled fine powder containing red bricks |
| CN113563023A (en) * | 2021-08-02 | 2021-10-29 | 北京建工资源循环利用投资有限公司 | Premixed mortar and application thereof |
Citations (4)
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|---|---|---|---|---|
| WO2003093191A1 (en) * | 2002-05-06 | 2003-11-13 | Re-Form System Co., Ltd. | Method for manufacturing recycle cement |
| CN101857397A (en) * | 2009-04-10 | 2010-10-13 | 同济大学 | Method for preparing dry-mixed mortar from construction waste fine aggregate |
| CN105669102A (en) * | 2016-01-14 | 2016-06-15 | 南通铁跃建材科技有限公司 | Dry-mixed mortar of replacing natural sand with construction waste machine-made sand |
| CN106007562A (en) * | 2016-05-19 | 2016-10-12 | 四川震强绿舍建材有限公司 | Dry-mixed mortar prepared from construction waste recycled aggregate and preparation method of dry-mixed mortar |
-
2018
- 2018-06-07 CN CN201810577100.9A patent/CN108640608A/en active Pending
Patent Citations (4)
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|---|---|---|---|---|
| WO2003093191A1 (en) * | 2002-05-06 | 2003-11-13 | Re-Form System Co., Ltd. | Method for manufacturing recycle cement |
| CN101857397A (en) * | 2009-04-10 | 2010-10-13 | 同济大学 | Method for preparing dry-mixed mortar from construction waste fine aggregate |
| CN105669102A (en) * | 2016-01-14 | 2016-06-15 | 南通铁跃建材科技有限公司 | Dry-mixed mortar of replacing natural sand with construction waste machine-made sand |
| CN106007562A (en) * | 2016-05-19 | 2016-10-12 | 四川震强绿舍建材有限公司 | Dry-mixed mortar prepared from construction waste recycled aggregate and preparation method of dry-mixed mortar |
Non-Patent Citations (1)
| Title |
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| 张英 主编: "《建筑材料与检测》", 30 September 2017, 北京理工大学出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109761545A (en) * | 2019-03-27 | 2019-05-17 | 桐乡桐化建材有限公司 | A kind of recycled fine aggregate masonry mortar |
| CN110759684A (en) * | 2019-12-02 | 2020-02-07 | 中建长远建设有限公司 | Double-aggregate cement mortar and preparation method thereof |
| CN111662045A (en) * | 2020-07-01 | 2020-09-15 | 山东摩泥卡环保科技有限公司 | Construction waste desulfurized gypsum double-waste backfill self-leveling method |
| CN112592131A (en) * | 2020-12-23 | 2021-04-02 | 许昌金科资源再生股份有限公司 | Ultrathin layer masonry mortar special for sintered blocks prepared from recycled fine powder containing red bricks |
| CN113563023A (en) * | 2021-08-02 | 2021-10-29 | 北京建工资源循环利用投资有限公司 | Premixed mortar and application thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181012 |
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| RJ01 | Rejection of invention patent application after publication |