CN106348679A - Recycled-aggregate ready-mixed mortar - Google Patents
Recycled-aggregate ready-mixed mortar Download PDFInfo
- Publication number
- CN106348679A CN106348679A CN201610700842.7A CN201610700842A CN106348679A CN 106348679 A CN106348679 A CN 106348679A CN 201610700842 A CN201610700842 A CN 201610700842A CN 106348679 A CN106348679 A CN 106348679A
- Authority
- CN
- China
- Prior art keywords
- regeneration aggregate
- agent
- premixing mortar
- ready
- mixed mortar
- 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.)
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to the technical field of basic building materials and particularly relates to recycled-aggregate ready-mixed mortar. The recycled-aggregate ready-mixed mortar contains cement, pulverized coal ash, yellow sand, recycled aggregates and a modifier, wherein the fineness modulus of the recycled aggregates is 2.0 to 2.6. According to the technical scheme provided by the invention, the ready-mixed mortar is prepared from the recycled aggregates, so that the production cost of the ready-mixed mortar can be reduced greatly; the source of the raw materials is wide, meanwhile, problems such as environmental pollution and occupation of land caused by construction wastes can be relieved, all properties of the obtained ready-mixed mortar are superior to those in national standards, and the ready-mixed mortar has good workability, water retention property and waterproof performance and has the advantages of cracking resistance, hollowing resistance and the like, so that the market competitiveness is huge.
Description
Technical field
The invention belongs to basic building materials technology field is and in particular to a kind of regeneration aggregate premixing mortar.
Background technology
With the development of social economy, the building trade of China develops rapidly like never before, and new building is constantly
Build, the consumption of concrete increases, meanwhile, have a lot of old buildings to need because not meeting modern Economy Development and requiring
Remove, thereby produce substantial amounts of building waste.According to statistics, the building waste that China produces because of demolition of buildings every year reaches 5
More than hundred million tons, the wherein ratio highest of discarded concrete, huge processing cost and the environmental problem thus causing very prominent.
In addition to part is smooth as construction site, low laying areas fill, major part throws aside the rubbish in suburb to discarded concrete at present
Rubbish landfill yard, weakly alkaline waste residue destroys large stretch of soil.Because concrete material belongs to Pyatyi material, good endurance, this
Rubbish will not as Organic substance natural decomposition, therefore this pollution is permanent.
The recycling treatment of building waste and utilization not only can solve the environmental problem of building waste initiation, can also save
About substantial amounts of natural aggregate, can alleviate the contradiction between rapid economic development and natural resources growing tension.Regeneration aggregate is
Realize the main path of construction refuse resource, according to the regulation of gb/t25177-2010 " concrete regenerated coarse aggregate ", then
The definition of raw coarse aggregate is to be processed by building (structure) and build concrete in waste, mortar, stone, brick and tile etc., for configuring coagulation
The granule native, particle diameter is more than 4.75mm.
Content of the invention
The invention provides a kind of regeneration aggregate premixing mortar, in order to solve regeneration aggregate for premixing mortar so as to each
Item performance meets national standard, thus solving the problems, such as that building waste recycles.
In order to solve above-mentioned technical problem, the technical scheme is that described regeneration aggregate premixing mortar, including water
Mud, flyash, yellow sand, regeneration aggregate and modifying agent, clay content≤1% of described regeneration aggregate, modulus of fineness is 2.0-2.6.
The excessive problem of clay content in regeneration aggregate is solved using washing process, and multiple grading, screenings are carried out to it, improve its particle diameter and divide
Cloth.Using flyash as filler, improve the construction sex chromosome mosaicism of regenerated resources aggregate class premixing mortar, adjust cement mortar rate, improve
Its physical property.
Further, cement is po42.5 portland cement, and described flyash is i level flyash, and described yellow sand is natural
River sand, yellow sand modulus of fineness is 2.4-2.6.
Further, described modifying agent is double-component modifying agent, and described bi-component modifying agent includes powder and liquid agent, institute
State powder and include water-retaining admixture, described liquid agent includes retarder and polymer emulsion.
Further, described regeneration aggregate premixing mortar includes following component by weight percentage:
Further, described powder includes water-retaining admixture, diversion agent, water reducer and thixotropic lubricant, described liquid agent
Including retarder, waterproofing agent and polymer emulsion.
Further, described powder includes following component by weight:
Further, described liquid agent includes following component by weight:
Retarder 10-12 part
Waterproofing agent 3-5 part
Polymer emulsion 87-90 part.
Further, described water-retaining admixture is hydroxypropyl methyl cellulose ether (hpmc), and described air entraining agent is rosin acid
Sodium, described water reducer is ethers poly carboxylic acid series water reducer, and thixotropic lubricant is lithium magnesium silicate.Water-retaining admixture, air entraining agent, diminishing
The compatibility of agent and thixotropic lubricant selects to be effectively improved the workability of regeneration aggregate.Water retention property.
Further, the viscosity of described hydroxypropyl methyl cellulose ether is 60,000 mpa 〃 s, and gelling temp is 70-75 DEG C.
Further, described retarder is sucrose, and described waterproofing agent is organosilicon moisture repellent, and described polymer emulsion is vinegar
Sour ethylene-vinyl copolymerization (vae) emulsion.The selection of retarder, waterproofing agent and polymer emulsion has taken into full account that three's is compatible
Property, the stability of system, and be parcel cement granules as the retardation mechanism of core component sucrose, therefore with other retarder
Compare and also there is not affect later strength.
Further, described sucrose is food grade powder shape sucrose.
The technical scheme that the present invention provides is prepared premixing mortar using regeneration aggregate and can greatly be reduced premixing mortar sand
Slurry production cost, and its raw material sources is extensively, can alleviate the environmental pollution caused by building castoff, occupation of land etc. simultaneously and ask
Topic, each performance of premixing mortar of acquisition is superior to national standard, has good workability, water retention property and water resistance,
And there is cracking resistance, anti-hollowing, the therefore market competitiveness is huge.
Specific embodiment
In order to make it easy to understand, illustrating regeneration aggregate premixing mortar it should be appreciated that these embodiments are only used with reference to embodiment
In the explanation present invention rather than restriction the scope of the present invention.
Agents useful for same in the present invention, unless stated otherwise, is commercial commodity.
Embodiment 1 wet mixing mortar double-component modifying agent
Described wet mixing mortar double-component modifying agent, including powder and liquid agent, group is grouped into as shown in table 1.
Table 1 wet mixing mortar double-component formula of modifier
The preparation method of described wet mixing mortar bi-component modifying agent is as follows:
Powder: weigh water-retaining admixture, air entraining agent, water reducer, thixotropic lubricant respectively by table 1 proportioning, put into double oars no
Stir in gravity mixer, obtain final product described wet mixing mortar double-component modifying agent powder.
Liquid agent: weigh polymer emulsion by table 1 proportioning and be added in high speed dispersor, then weigh potent slow setting respectively
Agent, waterproofing agent, are slowly added in dispersion machine respectively and stir, and obtain final product described wet mixing mortar double-component modifying agent
Liquid agent.
The common wet mixing mortar modifying agent of comparative example 1
Include following component by weight:
Prepare premixing mortar (wet mixing mortar), with portland cement as Binder Materials, additional nature bone using regeneration aggregate
The bi-component modifying agent of material, regeneration aggregate and embodiment 1 forms by a certain percentage.According to the actual requirements and construction environment, pass through
Adjustment formula, it is possible to obtain desired properties.
Embodiment 4-m10 motar (wp m10)
By the m10 motar mortar of following mass percent preparation, add the mixing water of raw material gross mass 12.7%
Construct after stirring, maintenance records properties to regulation, the results are shown in Table 2.
Embodiment 5- motar (wp m10)
Prepare cement based anti-nuclear radiation mortar by following mass percent, add the mixing water of raw material gross mass 12.9%
Construct after stirring, maintenance records properties to regulation, the results are shown in Table 2.
The common motar of comparative example 2-
Difference with embodiment 4 is, regeneration aggregate is common preparation mortar aggregate, and powder and liquid agent are changed to comparative example
1 modifying agent, properties are shown in Table 2.
Table 2 embodiment 4 and 5, the performance of the m10 motar of comparative example 2 preparation
| Embodiment 1 | Embodiment 2 | Comparative example 2 | |
| 6h denseness loss rate (%) | 11.5 | 12.6 | 36.4 |
| Water retention (%) | 91.8 | 90.3 | 88.7 |
| Setting time (h) | 16 | 17 | 14 |
| 28 days comprcssive strength (mpa) | 13.2 | 11.8 | 11.3 |
| 14 days adhesion strengths (mpa) | 0.31 | 0.28 | 0.23 |
| 28d anti-permeability strength (mpa) | 0.7 | 0.6 | 0.4 |
Improve with regeneration aggregate volume, natural aggregate volume reduces, and the properties of mortar all slightly decline therewith, say
Bright regeneration aggregate substitutes natural aggregate and should control in necessarily interval, preferably within 70%, the one-component ordinary mortar of comparative example 2
Modifying agent, the workability retention time is short, and 6h denseness loss rate is excessive, is difficult to meet long-time storage use requirement.
Claims (10)
1. a kind of regeneration aggregate premixing mortar is it is characterised in that include cement, flyash, yellow sand, regeneration aggregate and modifying agent,
The modulus of fineness of described regeneration aggregate is 2.0-2.6.
2. according to claim 1 a kind of regeneration aggregate premixing mortar it is characterised in that described cement be po42.5 silicate
Cement, described flyash is i level flyash, and described yellow sand is natural river sand, and yellow sand modulus of fineness is 2.4-2.6, described regeneration
Clay content≤the 1wt% of aggregate.
3. according to claim 1 a kind of regeneration aggregate premixing mortar it is characterised in that described modifying agent is that double-component is modified
Agent, described bi-component modifying agent includes powder and liquid agent, and described powder includes water-retaining admixture, and described liquid agent includes slow setting
Agent and polymer emulsion.
4. according to claim 3 a kind of regeneration aggregate premixing mortar it is characterised in that described regeneration aggregate premixing mortar is pressed
Percentage by weight meter includes following component:
5. according to claim 3 or 4 a kind of regeneration aggregate premixing mortar it is characterised in that described powder include water conservation increase
Thick dose, diversion agent, water reducer and thixotropic lubricant, described liquid agent includes retarder, waterproofing agent and polymer emulsion.
6. according to claim 5 a kind of regeneration aggregate premixing mortar it is characterised in that described powder includes by weight
Following component:
7. according to claim 6 a kind of regeneration aggregate premixing mortar it is characterised in that described water-retaining admixture be hydroxypropyl
Methyl cellulose ether, described air entraining agent is sodium abietate, and described water reducer is ethers poly carboxylic acid series water reducer, and thixotropic lubricant is
Lithium magnesium silicate.
8. according to claim 7 a kind of regeneration aggregate premixing mortar it is characterised in that described hydroxypropyl methyl cellulose ether
Viscosity be 60,000 mpa 〃 s, gelling temp be 70-75 DEG C.
9. according to claim 5 a kind of regeneration aggregate premixing mortar it is characterised in that described liquid agent is wrapped by weight
Include following component:
Retarder 10-12 part
Waterproofing agent 3-5 part
Polymer emulsion 87-90 part.
10. a kind of regeneration aggregate premixing mortar is it is characterised in that described retarder is sucrose, described according to claim 9
Waterproofing agent is organosilicon moisture repellent, and described polymer emulsion is vinyl acetate-ethylene copolymerization emulsions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700842.7A CN106348679A (en) | 2016-08-22 | 2016-08-22 | Recycled-aggregate ready-mixed mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700842.7A CN106348679A (en) | 2016-08-22 | 2016-08-22 | Recycled-aggregate ready-mixed mortar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106348679A true CN106348679A (en) | 2017-01-25 |
Family
ID=57844402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610700842.7A Pending CN106348679A (en) | 2016-08-22 | 2016-08-22 | Recycled-aggregate ready-mixed mortar |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107021699A (en) * | 2017-04-13 | 2017-08-08 | 越艳 | Premixing mortar containing building refuse brick tiling fine aggregate and preparation method thereof |
| CN109400034A (en) * | 2018-10-30 | 2019-03-01 | 西藏藏建科技股份有限公司 | A kind of novel pre- stirring mortar formula |
| CN109553334A (en) * | 2019-01-14 | 2019-04-02 | 江苏金海宁新型建材科技有限公司 | A kind of recycled aggregate premixing mortar and preparation method thereof |
| CN110105014A (en) * | 2019-05-08 | 2019-08-09 | 温州市三箭混凝土有限公司 | A kind of high performance concrete and preparation method thereof |
| 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 |
| CN111302724A (en) * | 2018-12-11 | 2020-06-19 | 北京海普斯建材有限公司 | Dry-mixed plastering mortar and preparation method thereof |
| CN112279592A (en) * | 2020-11-02 | 2021-01-29 | 南通城市轨道交通有限公司 | Water-dispersion-resistant synchronous grouting material for water-rich stratum |
| CN113024195A (en) * | 2021-03-12 | 2021-06-25 | 江苏洋河新城新材料有限责任公司 | Wet-mixed mortar using recycled aggregate and preparation method thereof |
| CN114790099A (en) * | 2022-04-14 | 2022-07-26 | 宁波新广亿建材有限公司 | Dry-mixed mortar and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538136A (en) * | 2009-04-29 | 2009-09-23 | 华南理工大学 | Premixing mortar with high moisture retention and production method thereof |
| CN103864357A (en) * | 2013-12-31 | 2014-06-18 | 上海城建物资有限公司 | Premixed recycled concrete and preparation method thereof |
| CN104556812A (en) * | 2015-01-06 | 2015-04-29 | 江苏中凯新材料有限公司 | Plastic stabilizer for wet-mixed mortar |
| CN104761215A (en) * | 2015-03-16 | 2015-07-08 | 济南维高建材技术有限公司 | Quick-drying and quick-hardening polymer cement waterproof slurry material and preparation method thereof |
-
2016
- 2016-08-22 CN CN201610700842.7A patent/CN106348679A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538136A (en) * | 2009-04-29 | 2009-09-23 | 华南理工大学 | Premixing mortar with high moisture retention and production method thereof |
| CN103864357A (en) * | 2013-12-31 | 2014-06-18 | 上海城建物资有限公司 | Premixed recycled concrete and preparation method thereof |
| CN104556812A (en) * | 2015-01-06 | 2015-04-29 | 江苏中凯新材料有限公司 | Plastic stabilizer for wet-mixed mortar |
| CN104761215A (en) * | 2015-03-16 | 2015-07-08 | 济南维高建材技术有限公司 | Quick-drying and quick-hardening polymer cement waterproof slurry material and preparation method thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107021699A (en) * | 2017-04-13 | 2017-08-08 | 越艳 | Premixing mortar containing building refuse brick tiling fine aggregate and preparation method thereof |
| CN109400034A (en) * | 2018-10-30 | 2019-03-01 | 西藏藏建科技股份有限公司 | A kind of novel pre- stirring mortar formula |
| CN111302724A (en) * | 2018-12-11 | 2020-06-19 | 北京海普斯建材有限公司 | Dry-mixed plastering mortar and preparation method thereof |
| CN109553334A (en) * | 2019-01-14 | 2019-04-02 | 江苏金海宁新型建材科技有限公司 | A kind of recycled aggregate premixing mortar and preparation method thereof |
| CN110105014A (en) * | 2019-05-08 | 2019-08-09 | 温州市三箭混凝土有限公司 | A kind of high performance concrete and preparation method thereof |
| 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 |
| CN110759684B (en) * | 2019-12-02 | 2020-11-27 | 中建长远建设有限公司 | Double-aggregate cement mortar and preparation method thereof |
| CN112279592A (en) * | 2020-11-02 | 2021-01-29 | 南通城市轨道交通有限公司 | Water-dispersion-resistant synchronous grouting material for water-rich stratum |
| CN113024195A (en) * | 2021-03-12 | 2021-06-25 | 江苏洋河新城新材料有限责任公司 | Wet-mixed mortar using recycled aggregate and preparation method thereof |
| CN114790099A (en) * | 2022-04-14 | 2022-07-26 | 宁波新广亿建材有限公司 | Dry-mixed mortar and preparation method thereof |
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Application publication date: 20170125 |