CN102249632A - Heat insulation plastering mortar with waste textile fibers and preparation method thereof - Google Patents
Heat insulation plastering mortar with waste textile fibers and preparation method thereof Download PDFInfo
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- CN102249632A CN102249632A CN201110143329XA CN201110143329A CN102249632A CN 102249632 A CN102249632 A CN 102249632A CN 201110143329X A CN201110143329X A CN 201110143329XA CN 201110143329 A CN201110143329 A CN 201110143329A CN 102249632 A CN102249632 A CN 102249632A
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- mortar
- water
- motar
- textile fibres
- cement
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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
-
- 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)
- 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 provides heat insulation plastering mortar with waste textile fibers and a preparation method thereof, which belong to the technical field of building materials. The invention is characterized in that a technical scheme of novel plastering mortar having the advantages of environment friendliness, energy saving, waste utilization, peaceability, good water retaining property, excellent anti-cracking property and excellent heat insulation property and the preparation method thereof are provided aiming at the technical defects of the traditional plastering mortar and the environment pollution problem of waste textile fibers. The processing problem of waste materials is solved through doping the waste textile fibers, the pollution of the waste materials to environments is reduced, and a large quantity of resources is saved. The toughness, the strength and the anti-cracking property of the plastering mortar are effectively improved. The toughness enhancement function of the fibers refers to the enhancement of the deformation capability of the mortar for entering a plastic stage in a stressed state and keeping certain resistance. The enhancement of the mortar by the fibers mainly refers to the improvement of tensile strength. The anti-cracking function refers to a function of the fibers for resisting the generation and the expansion of early-stage shrinkage cracks and hardened shrinkage cracks of the mortar.
Description
Technical field
The discarded textile fibres insulation of the present invention motar and preparation method thereof belongs to building material technical field.
Background technology
In construction work, metope and ceiling plastering are maximum kinds of construction.In recent years, because the enforcement of wall reform and the wide popularization and application of novel wall material make traditional motar combine the buildings of building with novel wall material and occur in a large number.In the decorations partitioned project, use building coat of plaster hollowing and cracking phenomena ubiquity in construction of traditional motar, cause the percolating water situation of skin face to be on the rise, especially in rainy season; When cracking is dark, often be accompanied by the generation of hollowing, obscission, in case the big area hollowing occurs, come off, only way is to do over again to reform, but the doing over again part of reforming resembles and beats " patch " at metope, is difficult to recover original appearance, and easily shrinkage crack occurs around the face of doing over again.The hollowing of buildings coat of plaster, cracking problem badly influence decorative effect, functions of use and the endurance quality of buildings.
Merely from traditional motar material itself, hollowing, the causes of cracks of coat of plaster have the following aspects:
1. the starting material selection is improper
Plaster and look for the bottom material improper use, used lime mortar,, can not effective adhesive be arranged and make the coat of plaster hollowing because material property there are differences in concrete surface bottoming; Coat of plaster is once plastered too thick, and the big influence bonding of shrinkage strain firmly produces the hollowing cracking; The mortar water cement ratio is excessive, excess moisture, and moisture evaporation forms a large amount of spaces in the back condensing process of plastering, sand-cement slurry is particularly evident, weaken the cohesive force of mortar, flowed downward the generation transverse crack behind the scratch coat along substrate surface because it's rare also can the appearance is past mortar simultaneously; Raw material selection is improper, and meticulous (soundness of cement difference etc. also is easy to generate the crack for median size＜0.3mm), silt content too high (＞2%) as sand; The motar proportioning is improper, and cement consumption is excessive, causes hydration heat big, and drying shrinkage is serious, thereby causes be full of cracks.
2. the evaporation of free water causes drying shrinkage in traditional motar, causes the crack.In sand-cement slurry, unhydrated cement granules is suspended in the water, and behind the moisture start vaporizer, the water between the cement granules begins to form curved surface, produces suction.These string stresses have exceeded the tensile strength of mortar matrix certain period, so, cause microfracture in mortar inside.In engineering practice, owing to do not take effective cracking resistance measure, mortar inherent tiny crack develops into bigger crack under the effect of interior external stress, so that final capillary channel and the crack that connects that form, and seriously has influence on construction quality.
3. the poor water retention property of traditional motar, its moisture are easily absorbed by light heat insulation blocks and influence mortar hardening, and its intensity, cohesive force also descend thereupon.
4. generally speaking, the environment ventilation of plastering is good and dry, adds and is negligent of maintenance, thereby cause the mortar dehydration comparatively fast to cause serious be full of cracks.
Studies show that the building wall crack is most irrelevant with load, factors such as plastic shrinkage, drying shrinkage, temperature variation are the main roots of motar rimose.For the top layer motar, require to have good resistance to cleavage.Overcome the above problems, must improve the resistance to cleavage of workability, water-retentivity and the raising motar of motar, thereby improve every performance of masonry building integral.
Summary of the invention
The discarded textile fibres insulation of the present invention motar and preparation method thereof, its objective is problem of environmental pollution, provide that a kind of environmental protection, energy-conservation profit are useless, workability and water-retentivity is good, resistance to cleavage and heat-insulating property are excellent novel plastering mortar and preparation method thereof at technological deficiency that exists in traditional motar and discarded textile fibres.
The discarded textile fibres insulation of the present invention motar, it is characterized in that it being a kind of problem of environmental pollution at technological deficiency that exists in traditional motar and discarded textile fibres, a kind of environmental protection that is provided, energy-conservation profit is useless, workability and water-retentivity are good, the discarded textile fibres insulation motar of resistance to cleavage and excellent thermal insulation performance, by weight percentage, the component of this mortar and content are cement 60-61, lime putty 20-27, flyash 10-15, redispersible latex 1.7-2.5 and water reducer 0.5-0.7, described lime putty is that calcareous unslaked lime or magnesia unslaked lime obtain by slaking, effectively calcium adds Mg content 〉=70%, do not digest relict content≤17%, curing time 〉=15 day, described flyash is the low calcium fly ash of I level, low calcium fly ash of II level or above two kinds mixture, generally contain CaO＜10%, gray; Fineness: with 0.045mm square hole sieve screen over-size≤12%; Water content≤1%; Sulphur trioxide≤3%; Density 2200kg/m
3It is 0.5-1.5mm that described glass bead is selected particle diameter for use, and unit weight is 80-130kg/m3, thermal conductivity 0.032-0.045w/ (mk); its floatability 〉=98%; surface vitreous rate 〉=95%, it is 20%-50% that the vacuum filtration method is measured water-intake rate, 1Mpa pressure lower volume rate of loss is 38%-46%; described discarded textile fibres is the discarded cotton yarn of spinnery; garment enterprise is discarded old cloth, scrap stock, and through being processed into the long fiber yarn of 10mm, described water reducer is a naphthalene water reducer.
The preparation method of above-mentioned discarded textile fibres insulation motar is characterized in that:
I. original material is:
Cement, flyash, waste fiber, glass bead, renewable dispersed latex powder, lime putty, water reducer, water;
II. initial formulation is:
Cement: lime putty=1: 0.33, waste fiber: fiber volume accounts for the 0.1%-0.5% of premixing mortar cumulative volume, lagging material: glass bead accounts for the 100%-140% of premixing mortar cumulative volume;
III. proportion scheme is as follows:
Cement 120-180kg; lime putty 40-80kg; flyash 30kg; redispersible latex powder 5kg, water reducer 1.5kg, water 270-310kg; waste fiber: fiber volume accounts for the 0.1%-0.5% of premixing mortar cumulative volume; lagging material: glass bead accounts for the 100%-140% of premixing mortar cumulative volume, and cement adopts 32.5 strength grades, and glass bead density is 80-130kg/m
3, discarded textile fibres length is 10-12mm;
IV. discarded textile fibres insulation motar is made:
At first cement, lime putty, flyash, glass bead are dropped in the stirrer, stirred 1-1.5 minute, again recyclability latex powder, water reducer, waste fiber evenly are sprinkled upon in the stirrer, stirred 1.5-2 minute, add the water stirring at last and got final product in 2.5-3 minute;
The discarded textile fibres insulation of the present invention motar and preparation method thereof compared with prior art has following advantage:
1. by mixing waste fiber (scrap stock of textile mills and waste and old clothes), the handling problem that has solved waste material has reduced its pollution problem to environment, has avoided the disaster hidden-trouble of hiding simultaneously; Motar of the present invention utilizes trade waste flyash, discarded textile fibres etc. well, has saved ample resources.
2. mixed an amount of flyash in the motar of the present invention,, improved the workability and the water-retentivity of mortar greatly, increased the degree of compactness of mortar because it has the micro aggregates effect.
3. the present invention mixes discarded textile fibres in motar, can improve toughness, intensity and the resistance to cleavage of motar effectively.The toughening effect of fiber is meant that mortar enters the deformability enhancing that the plastic stage keeps certain drag under strained condition; Fiber mainly is meant raising to tensile strength to the enhancing of mortar; Action of crack arrest refers to that the shrinkage crack after fiber is to mortar early-age shrinkage crack and sclerosis produces and the inhibition of expansion.Take all factors into consideration each factor, the length of fiber is advisable with 10-12mm, and discarded textile fibres volume is comparatively suitable at 0.1-0.5%, and the crack is appearred in the building coating facing better control action kou.
Embodiment:
Embodiment 1
Discarded textile fibres insulation motar, the component of described mortar and mixing ratio by weight (kg/m thereof
3) as follows:
Cement 120kg; lime putty 40kg; flyash 30kg; redispersible latex powder 5kg, water reducer 1.5kg, water 270kg; waste fiber: fiber volume accounts for 0.1% of premixing mortar cumulative volume; lagging material: glass bead accounts for 100% of premixing mortar cumulative volume, and cement adopts 32.5 strength grades, and glass bead density is 130kg/m
3, discarded textile fibres length is 10mm, water consumption can be done suitably according to denseness, delamination degree and the on-the-spot climate temperature of mortar and adjust;
The making method of discarded textile fibres insulation motar is: at first cement, lime putty, flyash, glass bead are dropped in the stirrer, stirred 1 minute, evenly be sprinkled upon recyclability latex powder, water reducer, waste fiber in the stirrer again, stirred 1.5 minutes, and added the water stirring at last and got final product in 2.5 minutes; Should put into temperature (20 ± 2) ℃ after the test specimen form removal immediately, relative humidity is maintenance in the standard curing room more than 90%, test specimen each interval 10mm, and maintenance is after 28 days, and the physicochemical property of measured discarded textile fibres insulation motar the results are shown in Table 1:
The physicochemical property detected result of the discarded textile fibres insulation of table 1 motar
Embodiment 2
Discarded textile fibres insulation motar, the component of described mortar and mixing ratio by weight (kg/m thereof
3) as follows:
Cement 150kg; lime putty 60kg; flyash 30kg; redispersible latex powder 5kg, water reducer 1.5kg, water 290kg; waste fiber: fiber volume accounts for 0.2% of premixing mortar cumulative volume; lagging material: glass bead accounts for 120% of premixing mortar cumulative volume, and cement adopts 32.5 strength grades, and glass bead density is 100kg/m
3, discarded textile fibres length is 11mm, water consumption can be done suitably according to denseness, delamination degree and the on-the-spot climate temperature of mortar and adjust;
The making method of discarded textile fibres insulation motar is: at first cement, lime putty, flyash, glass bead are dropped in the stirrer, stirred 1.5 minutes, evenly be sprinkled upon recyclability latex powder, water reducer, waste fiber in the stirrer again, stirred 1.5 minutes, and added the water stirring at last and got final product in 3 minutes; Should put into temperature (20 ± 2) ℃ after the test specimen form removal immediately, relative humidity is maintenance in the standard curing room more than 90%, test specimen each interval 10mm, and maintenance is after 28 days, and the physicochemical property of measured discarded textile fibres insulation motar the results are shown in Table 2:
The physicochemical property detected result of the discarded textile fibres insulation of table 2 motar
Embodiment 3
Discarded textile fibres insulation motar, the component of described mortar and mixing ratio by weight (kg/m thereof
3) as follows:
Cement 180kg; lime putty 80kg; flyash 30kg; redispersible latex powder 5kg, water reducer 1.5kg, water 310kg; waste fiber: fiber volume accounts for 0.5% of premixing mortar cumulative volume; lagging material: glass bead accounts for 140% of premixing mortar cumulative volume, and cement adopts 32.5 strength grades, and glass bead density is 80kg/m
3, discarded textile fibres length is 12mm, water consumption can be done suitably according to denseness, delamination degree and the on-the-spot climate temperature of mortar and adjust;
The making method of discarded textile fibres insulation motar is: at first cement, lime putty, flyash, glass bead are dropped in the stirrer, stirred 1.5 minutes, evenly be sprinkled upon recyclability latex powder, water reducer, waste fiber in the stirrer again, stirred 2 minutes, and added the water stirring at last and got final product in 2.5 minutes; Should put into temperature (20 ± 2) ℃ after the test specimen form removal immediately, relative humidity is maintenance in the standard curing room more than 90%, test specimen each interval 10mm, and maintenance is after 28 days, and the physicochemical property of measured discarded textile fibres insulation motar the results are shown in Table 3:
The physicochemical property detected result of the discarded textile fibres insulation of table 3 motar
Claims (2)
1. discarded textile fibres insulation motar, it is characterized in that it being a kind of problem of environmental pollution at technological deficiency that exists in traditional motar and discarded textile fibres, a kind of environmental protection that is provided, energy-conservation profit is useless, workability and water-retentivity are good, the discarded textile fibres insulation motar of resistance to cleavage and excellent thermal insulation performance, by weight percentage, the component of this mortar and content are cement 60-61, lime putty 20-27, flyash 10-15, redispersible latex 1.7-2.5 and water reducer 0.5-0.7, described lime putty is that calcareous unslaked lime or magnesia unslaked lime obtain by slaking, effectively calcium adds Mg content 〉=70%, do not digest relict content≤17%, curing time 〉=15 day, described flyash is the low calcium fly ash of I level, low calcium fly ash of II level or above two kinds mixture, generally contain CaO＜10%, gray; Fineness: with 0.045mm square hole sieve screen over-size≤12%; Water content≤1%; Sulphur trioxide≤3%; Density 2200kg/m
3It is 0.5-1.5mm that described glass bead is selected particle diameter for use, and unit weight is 80-130kg/m3, thermal conductivity 0.032-0.045w/ (mk); its floatability 〉=98%; surface vitreous rate 〉=95%, it is 20%-50% that the vacuum filtration method is measured water-intake rate, 1Mpa pressure lower volume rate of loss is 38%-46%; described discarded textile fibres is the discarded cotton yarn of spinnery; garment enterprise is discarded old cloth, scrap stock, and through being processed into the long fiber yarn of 10mm, described water reducer is a naphthalene water reducer.
2. the described discarded textile fibres of claim 1 is incubated the preparation method of motar, it is characterized in that:
I. original material is:
Cement, flyash, waste fiber, glass bead, renewable dispersed latex powder, lime putty, water reducer, water;
II. initial formulation is:
Cement: lime putty=1: 0.33, waste fiber: fiber volume accounts for the 0.1%-0.5% of premixing mortar cumulative volume, lagging material: glass bead accounts for the 100%-140% of premixing mortar cumulative volume;
III. proportion scheme is as follows:
Cement 120-180kg; lime putty 40-80kg; flyash 30kg; redispersible latex powder 5kg, water reducer 1.5kg, water 270-310kg; waste fiber: fiber volume accounts for the 0.1%-0.5% of premixing mortar cumulative volume; lagging material: glass bead accounts for the 100%-140% of premixing mortar cumulative volume, and cement adopts 32.5 strength grades, and glass bead density is 80-130kg/m
3, discarded textile fibres length is 10-12mm;
IV. discarded textile fibres insulation motar is made:
At first cement, lime putty, flyash, glass bead are dropped in the stirrer, stirred 1-1.5 minute, again recyclability latex powder, water reducer, waste fiber evenly are sprinkled upon in the stirrer, stirred 1.5-2 minute, add the water stirring at last and got final product in 2.5-3 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110143329XA CN102249632A (en) | 2011-05-26 | 2011-05-26 | Heat insulation plastering mortar with waste textile fibers and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110143329XA CN102249632A (en) | 2011-05-26 | 2011-05-26 | Heat insulation plastering mortar with waste textile fibers and preparation method thereof |
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| CN102249632A true CN102249632A (en) | 2011-11-23 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708794A (en) * | 2013-12-07 | 2014-04-09 | 马鞍山市金韩防水保温工程有限责任公司 | Waterproof and heat insulation mortar for building outer walls |
| CN103964762A (en) * | 2014-04-04 | 2014-08-06 | 黄裕兵 | Cement mortar preparing method |
| CN104230266A (en) * | 2014-09-05 | 2014-12-24 | 陈浩 | High-strength dry-mixed mortar stirring method |
| CN104909822A (en) * | 2015-05-29 | 2015-09-16 | 合肥瑞鹤装饰工程有限公司 | Environmentally friendly vitrified microsphere inorganic insulation mortar and preparation method thereof |
| CN106866064A (en) * | 2017-01-03 | 2017-06-20 | 湖南科技学院 | A kind of glass bead carbon fiber reinforcement thermal insulation mortar, preparation and its application method |
-
2011
- 2011-05-26 CN CN201110143329XA patent/CN102249632A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708794A (en) * | 2013-12-07 | 2014-04-09 | 马鞍山市金韩防水保温工程有限责任公司 | Waterproof and heat insulation mortar for building outer walls |
| CN103708794B (en) * | 2013-12-07 | 2015-12-02 | 马鞍山市金韩防水保温工程有限责任公司 | The waterproof thermal insulation mortar that a kind of external wall uses |
| CN103964762A (en) * | 2014-04-04 | 2014-08-06 | 黄裕兵 | Cement mortar preparing method |
| CN104230266A (en) * | 2014-09-05 | 2014-12-24 | 陈浩 | High-strength dry-mixed mortar stirring method |
| CN104909822A (en) * | 2015-05-29 | 2015-09-16 | 合肥瑞鹤装饰工程有限公司 | Environmentally friendly vitrified microsphere inorganic insulation mortar and preparation method thereof |
| CN106866064A (en) * | 2017-01-03 | 2017-06-20 | 湖南科技学院 | A kind of glass bead carbon fiber reinforcement thermal insulation mortar, preparation and its application method |
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|---|---|---|---|
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| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: TAIYUAN SIKEDA TECHNOLOGY DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: TAIYUAN UNIVERSITY OF TECHNOLOGY Effective date: 20120927 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Zhu Inventor after: Zhang Jing Inventor after: Zhao Lin Inventor before: Zhang Jing Inventor before: Pang Jianying Inventor before: Fan Jianping Inventor before: Chen Xingguo |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG JING PANG JIANYING FAN JIANPING CHEN XINGGUO TO: LI ZHU ZHANG JING ZHAO LIN |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20120927 Address after: 030024 Shanxi Taiyuan Changzhi road A Ruijie Technology Center No. 251 room 205 Applicant after: Taiyuan Sikeda Technical Development Co., Ltd. Address before: 030024 West Street, Taiyuan, Shanxi, No. 79, No. Applicant before: Taiyuan University of Technology |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111123 |