CN110330298A - Cement base fire coal clinker light mortar - Google Patents
Cement base fire coal clinker light mortar Download PDFInfo
- Publication number
- CN110330298A CN110330298A CN201910603281.2A CN201910603281A CN110330298A CN 110330298 A CN110330298 A CN 110330298A CN 201910603281 A CN201910603281 A CN 201910603281A CN 110330298 A CN110330298 A CN 110330298A
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- China
- Prior art keywords
- clinker
- fire coal
- weight
- parts
- cement base
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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
- C04B28/06—Aluminous 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
-
- 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
- C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
-
- 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
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
Abstract
A kind of cement base fire coal clinker light mortar, the light mortar include portland cement, anhydrous gypsum, coal-fired clinker, methyl cellulose ether, redispersable latex powder and fiber；Wherein, fiber is vinal or short basalt fiber.Compared with prior art, lightweight plastering mortar of the invention has good heat insulation effect, and adhesion strength is high, microdilatancy and does not crack, and matches with lightweight wall, can guarantee wall and mortar not hollowing, do not crack, do not fall off.
Description
Technical field
The present invention relates to light mortar fields, and in particular to a kind of cement base fire coal clinker light mortar.
Background technique
In daily architectural engineering, frequently with air-entrained concrete building block, ceramicite-reinforced aerated block, sintering heat insulation building block
It is also constantly studied and introduces to the market with filled-type composite heat insulation block etc..Currently, with insulation blocks (including sintering protect
Warm building block and filled-type composite heat insulation block) matched building plastering mortar is increasingly becoming the hot spots of research and development, but to tool
There is the mating mortar research of heat preservation, heat insulating function less, still heat-preserving wall is built using the mortar of high thermal conductivity coefficient
It builds and plasters, wall heat function performance is caused to significantly reduce.The specific gravity of air-entrained concrete building block about 600-800kg/m3, lead
Hot coefficient is 0.14-0.20w/ (mk25 DEG C), the specific gravity 1700-1800kg/m of common plastering mortar3, thermal coefficient
0.93w/ (mk25 DEG C), the specific gravity and thermal coefficient of insulation blocks and ordinary mortar do not match.This common plastering mortar
Elasticity modulus is significantly greater than the elasticity modulus of air-entrained concrete building block, causes plastering interface to generate biggish distortional stress, makes
It cracks.Meanwhile the thermal coefficient of this ordinary mortar is also higher, can generate " heat bridge " effect and cause to shrink deformation, make interface
It destroys and generates hollowing, cracks and fall off.Along with the workability of existing common plastering mortar is poor, many workers are difficult to warehouse
Light is received, cement powder can only be sprinkled and carry out surface light splitting, causes to obtain mortar surface cracking, protection building and wall can not be played
Effect.And cracking, falling off will also result in certain threat to the personal safety of construction personnel and owner, plastering mortar is thicker,
This threat is also bigger.
Coal-fired clinker is that coal passes through Water Quenching under high temperature fused state, transports to production or uses unit, by drying
It is dry, due to the burning and fluxing effect of burner hearth, then machined generation, general granular size is in 0-2mm etc., with sand
Gravel size is similar.Admixture of the coal-fired clinker after levigate processing as concrete does not have existing product and applies standard,
According to the regulation of " the total utilization of PCA management method " of the publication in 13 years such as National Development and Reform Committee, belong to flyash scope.
Therefore, existing its index of quality of GB/1596-2005 (with the flyash of cement and concrete) standard determination can be used.It is coal-fired
The granule-morphology of clinker, mineralogical composition, microelement, radioactivity and some chemical properties detection data by with corresponding entry
The relevant unit of mesh detection qu alification provides, actually the chemical component of clinker are as follows: SiO2For 40%-50%, Al2O3For 30%-
35%, Fe2O3For 4%-20%, CaO 1%-5%, mineral composition has anorthite, quartz, mullite, magnetic iron ore, Huang Tie
Mine, a large amount of siliceous vitreum (Al2O3·2SiO2), activity SiO2, activity Al2O3Deng.Therefore, with regard to its ingredient and mineral composition
For, clinker is not waste to no avail, and such waste residue be distributed in China it is very wide, how to carry out clinker exploitation,
Turn waste into wealth, realize the recycling of clinker, becomes a new useful project.
Currently, coal-fired clinker is recovered, the particle drying, be ground into 0-2mm or so, and it is a kind of well, lightweight,
The aggregate of heat preservation, matches with lightweight wall, can prevent wall and protection mortar hollowing, crack, falls off.For example, existing skill
Art CN106186929A discloses a kind of using coal-fired clinker as the wall body placing heat-insulating mortar of aggregate, and the mortar is by following number
Raw material is made: 200~500 parts of portland cement, 500~1000 parts of clinker, and 6~12 parts of redispersable latex powder, cellulose ether
3~6 parts, 1-2 parts of reinforcing fiber.But the easy swelling cracking of the wall body placing heat-insulating mortar of the invention, and difficult molding, especially
It is more difficult to form in subzero temperature situation.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of guarantor to overcome the above problem of the existing technology
The high microdilatancy of temperature, adhesion strength, indehiscent cement base fire coal clinker lightweight plastering mortar.
The technical solution used to solve the technical problems of the present invention is that a kind of cement base fire coal clinker light mortar, this is light
Matter mortar includes portland cement, sulphate aluminium cement, anhydrous gypsum, coal-fired clinker, methyl cellulose ether, redispersible cream
Rubber powder and fiber；Wherein, fiber is vinal or short basalt fiber.
In the present invention, using coal-fired clinker as main aglite.
In the present invention, portland cement makees early strength agent as cementitious material basis material, sulphate aluminium cement.
In the present invention, anhydrous gypsum is as expansion regulator, in order to solve the problems, such as lower shrinkage.
In the present invention, redispersable latex powder is used to improve adhesion strength and cohesive force.
In the present invention, methyl cellulose ether improves water retentivity of mortar.
In the present invention, basalt fibre or vinal guarantee that mortar does not crack.
Further, which contains the raw material of following parts by weight: portland cement 499-500.9 parts by weight, sulphur aluminium
Acid salt cement 50-100 parts by weight, anhydrous gypsum 31.99-32.01 parts by weight, coal-fired clinker 1134-1300 parts by weight, methyl
Cellulose ether 0.6-1.0 parts by weight, redispersable latex powder 0.6-1.0 parts by weight, vinal 0.6-1.0 parts by weight
Or short basalt fiber 0.6-1.0 parts by weight.
Further, the portland cement is selected from 42.5 ordinary portland cements, 32.5 ordinary portland cements and 52.5
At least one of ordinary portland cement.
Further, the anhydrous gypsum removes the anhydrous gypsum that two hydrones obtain selected from dihydrate gypsum.
Further, the coal-fired clinker is the dry slag of boiler emission, water content < 0.5%.
Further, the redispersable latex powder is selected from copolymer, the vinyl acetate/versatic acid of ethylene/vinyl acetate
The flexibility of mortar can be improved in ethylene copolymer or acrylic copolymer.
Further, the diameter of the vinal is 14-26 μm, and length is 6-12 mm.
Further, the diameter of the short basalt fiber is 5-10 μm, length 3-5mm.
Under preferable case, a kind of preparation method of cement base fire coal clinker light mortar, be by above-mentioned raw materials directly by than
Example mixing to get.
In the present invention, the construction method of cement base fire coal clinker light mortar is constructed using thin limed construction method.
Compared with prior art, lightweight plastering mortar of the invention has good heat insulation effect, high micro- of adhesion strength
Expansion and do not crack, matched with lightweight wall, can guarantee wall and mortar not hollowing, do not crack, do not fall off.
Specific embodiment
The present invention will be described in detail by way of examples below.In following embodiment,
Cement base fire coal clinker lightweight plastering mortar mechanical property (including flexural strength, compression strength, coefficient of softing, table
See density) it is measured with reference to following method:
Flexural strength test
In formula, R- flexural strength (MPa)
F- failing load (N)
L- fixture pivot distance (1600mm)
The width (40mm) of b- mortar specimen
The height (40mm) of h- mortar specimen
The compression strength of mortar is calculated as follows:
In formula, RCCompression strength (MPa)
F- failing load (N)
A- test specimen bearing area (1600mm2)
Coefficient of softing measurement:
In formula, δ-test specimen coefficient of softing
σDry strengthThe dry compressive strength of test specimen
σWet strengthThe Wet Compression intensity of test specimen
The apparent density of mortar stirring thing is calculated as follows:
In formula, ρ-mortar mixture apparent density (kg/m3)
m1Capacity tube quality (kg)
m2Capacity tube and sample mass (kg)
V- capacity tube volume (L)
It takes the arithmetic mean of instantaneous value of experimental result twice as measured value, is accurate to kg/m3。
The setting time of mortar can determine as follows:
1. the determination gram of setting time uses diagrammatic representation or interpolation method, it should be subject to diagrammatic representation when disputable.It is stirred from Jia Shui
Mix beginning timing, record time and corresponding penetration resistance value respectively, according to the penetration resistance value in test gained each stage and when
Between relationship draw, the required time t that penetration resistance value reaches 0.5MPa is found out by figure1(min), t at this time1Value is mortar
Presetting period measured value.The required time t that penetration resistance value reaches 5MPa is found out by figure2(min), t at this time2Value is sand
The final setting time measured value of slurry.
2. measure mortar coagulation time, two samples should be taken, in same disk with the arithmetic mean of instantaneous value of two test results
As the setting time measured value of the mortar, test result error should not exceed 30min twice, otherwise should redeterminate.
In case of no particular description, raw materials used to be all made of commercial product.
Embodiment 1
Cement base fire coal clinker lightweight plastering mortar includes the raw material of following parts by weight: 42.5 ordinary portland cements 500
Gram, 80 grams of sulphate aluminium cement, 1200 grams of the dry slag (water content < 0.5%) of boiler emission, methyl cellulose ether 0.8
Gram, 0.8 gram of redispersable latex powder (copolymer of ethylene/vinyl acetate), diameter is 15 μm, length is 10mm polyethylene
0.8 gram of alcohol fiber.
The preparation method of cement base fire coal clinker lightweight plastering mortar be above-mentioned raw materials are directly mixed in proportion to get.
Embodiment 2
Cement base fire coal clinker lightweight plastering mortar is prepared according to the preparation method of embodiment 1, unlike, cement base
Coal-fired clinker lightweight plastering mortar includes the raw material of following parts by weight: 32.5 500 grams of ordinary portland cements, aluminium sulfate water
70 grams of mud, 32 grams of anhydrous gypsum, 1150 grams of the dry slag (water content < 0.5%) of boiler emission, methyl cellulose ether 0.7
Gram, 0.7 gram of redispersable latex powder (vinyl acetate/versatic acid ethylene copolymer), diameter is 10 μm, length is 5mm basalt
0.7 gram of staple fiber.
Embodiment 3
Cement base fire coal clinker lightweight plastering mortar is prepared according to the preparation method of embodiment 1, unlike, cement base
Coal-fired clinker lightweight plastering mortar includes the raw material of following parts by weight: 52.5 500 grams of ordinary portland cements, aluminium sulfate water
90 grams of mud, dihydrate gypsum removes 32 grams of anhydrous gypsum that two hydrones obtain, dry slag (the water content < of boiler emission
0.5%) 1250 grams, 0.9 gram of methyl cellulose ether, 0.9 gram of redispersable latex powder (acrylic copolymer), diameter is 20 μ
M, length is 0.9 gram of 10mm vinal.
Embodiment 4
Cement base fire coal clinker lightweight plastering mortar is prepared according to the preparation method of embodiment 1, unlike, cement base
Coal-fired clinker lightweight plastering mortar includes the raw material of following parts by weight: 500.9 grams of portland cement, 50 grams of sulphate aluminium cement,
Dihydrate gypsum removes 31.99 grams of anhydrous gypsum that two hydrones obtain, the dry slag (water content < 0.5%) of boiler emission
1134 grams, 0.6 gram of methyl cellulose ether, 0.6 gram of redispersable latex powder (copolymer of ethylene/vinyl acetate), diameter is
5 μm, length be 0.6 gram of 5mm short basalt fiber.
Embodiment 5
Cement base fire coal clinker lightweight plastering mortar is prepared according to the preparation method of embodiment 1, the difference is that cement base combustion
Cinder lightweight plastering mortar includes the raw material of following parts by weight: 42.5 499 grams of portland cements, sulphate aluminium cement 100
Gram, 32.01 grams of fluorgypsum, 1300 grams of the dry slag (water content < 0.5%) of boiler emission, 1.0 grams of methyl cellulose ether,
(.0 grams of the copolymer 1 of ethylene/vinyl acetate, diameter is 8 μm to redispersable latex powder, length is 5mm short basalt fiber
1.0 gram.
Comparative example 1
Cement base fire coal clinker lightweight plastering mortar is prepared according to the preparation method of embodiment 1, the difference is that cement base combustion
Cinder lightweight plastering mortar includes the raw material of following parts by weight: 42.5 500 grams of ordinary portland cements, and boiler emission is done
Dry 1200 grams of clinker (water content < 0.5%), 0.8 gram of methyl cellulose ether, redispersable latex powder (ethylene/vinyl acetate
Copolymer) 0.8 gram, diameter is 15 μm, length is 0.8 gram of 10mm vinal.
Comparative example 2
Cement base fire coal clinker lightweight plastering mortar is prepared according to the preparation method of embodiment 1, the difference is that cement base combustion
Cinder lightweight plastering mortar includes the raw material of following parts by weight: 42.5 500 grams of ordinary portland cements, and 32 grams of anhydrous gypsum,
1200 grams of the dry slag (water content < 0.5%) of boiler emission, 0.8 gram of methyl cellulose ether, redispersable latex powder (second
Alkene/vinylacetate copolymer) 0.8 gram, 0.8 gram of reinforcing fiber.
Application examples
The construction method of mortar: it constructs by thin-coat plaster mortar construction method.
Test case
Measure the first of cement base fire coal clinker lightweight plastering mortar made from embodiment 1-5, final setting time, test result
It is shown in Table 1.Cement base fire coal clinker lightweight plastering mortar made from embodiment 1-5 is added 300 grams of water respectively, then stirring molding,
Have castable with three gang moulds, demoulds after 4 hours, then conserve.Specimen size 40mm × 40mm × 160mm is tested after 6 days
Intensity, forming 3, calculates separately corresponding parameter, result such as 1 institute of table with above-mentioned formula (1), (2), (3), (4) every time
Show.
Table 1
| Embodiment number | Presetting period | Final setting time | Compression strength | Flexural strength | Coefficient of softing | Apparent density |
| Embodiment 1 | 200.2min | 220.5min | 13.2MPa | 4.8MPa | 0.80% | 10.0kg/m2 |
| Embodiment 2 | 198.2min | 214.2min | 13.2MPa | 4.6MPa | 0.80% | 9.8kg/m2 |
| Embodiment 3 | 172.3min | 210.5min | 13.6MPa | 5.0MPa | 0.81% | 10.2kg/m2 |
| Embodiment 4 | 178.0min | 215.3min | 13.9MPa | 4.9MPa | 0.82% | 10.5kg/m2 |
| Embodiment 5 | 175.0min | 216.3min | 13.5MPa | 4.7MPa | 0.80% | 10.3kg/m2 |
| Comparative example 1 | 302.8min | 331.5min | 8.9MPa | 2.6MPa | 0.53% | 6.1kg/m2 |
| Comparative example 2 | 285.1min | 314.7min | 10.1MPa | 3.3MPa | 0.64% | 7.5kg/m2 |
As the result of table 1 can be seen that embodiment 1-5 made from cement base fire coal clinker lightweight plastering mortar just
Between solidifying final setting time 2h-4h, setting time is reasonable, meets operation and requires, and compression strength is greater than 13MPa, and bending strength is greater than
4.5MPa, elastic shrinkage performance is good, good toughness, adhesion strength up to 1MPa, not hollowing, do not crack, be good lightweight plastering
Mortar.And comparative example 1-2 initial set final setting time is slightly longer, bending strength and elastic shrinkage are to be improved, but are able to satisfy requirement.
The preferred embodiment of the present invention has been described above in detail, and still, the present invention is not limited thereto.Of the invention
, can be with various simple variants of the technical solution of the present invention are made in range of the technology design, including each technical characteristic is with any
Other suitable methods are combined, and it should also be regarded as the disclosure of the present invention for these simple variants and combination, are belonged to
In protection scope of the present invention.
Claims (8)
1. a kind of cement base fire coal clinker light mortar, which is characterized in that the light mortar includes portland cement, anhydrous stone
Cream, coal-fired clinker, methyl cellulose ether, redispersable latex powder and fiber；Wherein, fiber is vinal or basalt
Staple fiber.
2. cement base fire coal clinker light mortar according to claim 1, which is characterized in that the light mortar contains following
The raw material of parts by weight: portland cement 499-500.9 parts by weight, sulphate aluminium cement 50-100 parts by weight, anhydrous gypsum
It is 31.99-32.01 parts by weight, fire coal clinker 1134-1300 parts by weight, methyl cellulose ether 0.6-1.00 parts by weight, redispersible
Latex powder 0.6-1.0 parts by weight, vinal 0.6-1.0 parts by weight or short basalt fiber 0.6-1.0 parts by weight.
3. cement base fire coal clinker light mortar according to claim 1 or 2, which is characterized in that the portland cement
Selected from least one of 42.5 ordinary portland cements, 32.5 ordinary portland cements and 52.5 ordinary portland cements.
4. cement base fire coal clinker light mortar according to claim 1 or 2, which is characterized in that the anhydrous gypsum choosing
Remove the anhydrous gypsum that two hydrones obtain from dihydrate gypsum.
5. cement base fire coal clinker light mortar according to claim 1 or 2, which is characterized in that it is described fire coal clinker be
The dry slag of boiler emission, water content < 0.5%.
6. cement base fire coal clinker light mortar according to claim 1 or 2, which is characterized in that the redispersible cream
Rubber powder is selected from copolymer, vinyl acetate/versatic acid ethylene copolymer or the acrylic copolymer of ethylene/vinyl acetate.
7. cement base fire coal clinker light mortar according to claim 1 or 2, which is characterized in that the polyvinyl alcohol is fine
The diameter of dimension is 14-26 μm, and length is 6-12 mm.
8. cement base fire coal clinker light mortar according to claim 1 or 2, which is characterized in that the short fibre of basalt
The diameter of dimension is 5-10 μm, length 3-5mm.
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| CN201910603281.2A CN110330298A (en) | 2019-07-04 | 2019-07-04 | Cement base fire coal clinker light mortar |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910603281.2A CN110330298A (en) | 2019-07-04 | 2019-07-04 | Cement base fire coal clinker light mortar |
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Family
ID=68143186
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| CN112551999A (en) * | 2020-12-04 | 2021-03-26 | 苏州娄城新材料科技有限公司 | Special dry-mixed mortar of aggregate-free fly ash |
| CN114804787A (en) * | 2022-06-09 | 2022-07-29 | 新化县天马建筑新材料科技有限公司 | High-adhesion and high-weather-resistance ceramic tile bonding mortar and preparation method thereof |
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| CN114804787A (en) * | 2022-06-09 | 2022-07-29 | 新化县天马建筑新材料科技有限公司 | High-adhesion and high-weather-resistance ceramic tile bonding mortar and preparation method thereof |
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