CN108424170A - Flexible mortar and preparation method thereof for being bonded light partition wall - Google Patents
Flexible mortar and preparation method thereof for being bonded light partition wall Download PDFInfo
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- CN108424170A CN108424170A CN201810497553.0A CN201810497553A CN108424170A CN 108424170 A CN108424170 A CN 108424170A CN 201810497553 A CN201810497553 A CN 201810497553A CN 108424170 A CN108424170 A CN 108424170A
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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
- C04B28/06—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
- C04B2111/00637—Uses not provided for elsewhere in C04B2111/00 as glue or binder for uniting building or structural materials
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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
- C04B2111/40—Porous or lightweight materials
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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
- 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
Flexible mortar and preparation method thereof for being bonded light partition wall, belongs to building material field.The raw material of flexible mortar is counted in parts by weight：35 40 parts of 60 90 parts of aluminate cement, 350 420 parts of Portland cement, 30 35 parts of ester exchange at phosphorus, 20 24 parts of anhydrous sodium sulphate, 420 480 parts of sand, 25 35 parts of expanded vermiculite powder, 50 70 parts of powdered whiting, 30 40 parts of calcined kaolin, 5 10 parts of cellulose ether and rubber powder.Has the advantages that adhesion strength is high, crack resistance is good.Preparation method includes mixing above-mentioned raw materials.Easy to operate, mortar obtained has the advantages that adhesion strength is high, crack resistance is good.
Description
Technical field
The present invention relates to building material fields, and more particularly to a kind of flexible mortar and its system for being bonded light partition wall
Preparation Method.
Background technology
Light cellular partition board is fast due to itself having series of advantages, the easy construction such as lightweight, sound insulation, heat-insulated, moisture-proof, fire prevention
Speed；Building dead weight can be not only reduced, is conducive to improve building function；And project cost is saved, reduce energy consumption.It can
Be widely used in the skyscraper of frame structure, industrial premises, office building, auditoriums, hotels, residential houses and extending old building locellus, point
The non-bearing wall bodies construction such as family, toilet, kitchen, partition is used especially suitable for the higher place of public amusement of fire protection requirement.
But the construction docking of light cellular partition board is always the problem of a puzzlement industry development, applying between partition plate
For work gray seam thickness generally in 8mm or so, longitudinal mortar joint is long, dock usually existing using traditional conventional cement mortar etc. and glue
The shortcomings of power is insufficient, volume contraction is big is tied, the stress raiser surface of wall seam has more existing longitudinal cracking.According to site operation
Summary of experience, for the wallboard whole face width of wall body of width 60cm once more than 4.5m, there is face checking in intermediate stress concentrated part
Probability 80% or more, effect of prestressed is poor.Therefore, a kind of cement mortar that cracking resistance is excellent is studied to be used for light partition wall
Be bonded in the installation application of light partition wall and has great importance.
In view of this, special propose the application.
Invention content
The purpose of the present invention is to provide a kind of for being bonded the flexible mortar of light partition wall, have adhesion strength it is high,
The advantages that crack resistance is good.
Another object of the present invention is to provide a kind of preparation method for being bonded the flexible mortar of light partition wall, operations
Simply, mortar obtained has the advantages that adhesion strength is high, crack resistance is good.
The present invention solves its technical problem using following technical scheme to realize.
The present invention proposes a kind of flexible mortar for being bonded light partition wall, and raw material is counted in parts by weight includes：
60-90 parts of aluminate cement, 350-420 parts of Portland cement, 30-35 parts of ester exchange at phosphorus, anhydrous sodium sulphate
20-24 parts, it is 420-480 parts of sand, 25-35 parts of expanded vermiculite powder, 50-70 parts of powdered whiting, 30-40 parts of calcined kaolin, fine
35-40 parts of 5-10 parts of dimension plain ether and rubber powder.
The present invention proposes a kind of preparation method for being bonded the flexible mortar of light partition wall, including：Above-mentioned raw materials are mixed
It closes.
The advantageous effect of the embodiment of the present invention is：
Provided by the present invention for being bonded the flexible mortar of light partition wall, using aluminate cement and Portland cement
Meet system, two kinds of cement have complementary advantages, and can both make mortar strength stable and the volume stability of hardenite, aluminate cement
The free calcium of Portland cement aquation generation can be substantially effectively absorbed again to reduce the basicity of mixed system, additionally it is possible to
The aquation for accelerating cement principal goods phase, makes mortar have the advantages of high-early-strength.Inventor is the study found that in above two cement
Under compound system, ester exchange at phosphorus and anhydrous sodium sulphate are added, entringite can effectively be inhibited constantly to be changed into single sulfur type aquation sulphur aluminic acid
The phenomenon that calcium, ensures the resistance to compression of mortar at the case where avoiding caused by unstable state drated calcium aluminate crystal transfer microstructure from deteriorating
Intensity is high, drying shrinkage value is small.Expanded vermiculite powder, powdered whiting and calcined kaolin cooperation improve cement mortar hardenite
Physical organization's structure, help to improve the compactness of mortar, make mortar have higher hydration rate and early stage stretch-bonded,
Resistance to compression, flexural strength make hardenite not shrink, cracking resistance.
Preparation method provided by the present invention for the flexible mortar for being bonded light partition wall, prepares simply, according to above-mentioned ratio
Example mixes feed components, and obtained mortar correspondingly has the advantages that adhesion strength is high, crack resistance is good.
Specific implementation mode
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, builds according to normal condition or manufacturer
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
The flexible mortar and preparation method thereof for being bonded light partition wall of the embodiment of the present invention is carried out specifically below
It is bright.
The present invention provides a kind of flexible mortar for being bonded light partition wall, and raw material is counted in parts by weight includes：
60-90 parts of aluminate cement, 350-420 parts of Portland cement, 30-35 parts of ester exchange at phosphorus, anhydrous sodium sulphate
20-24 parts, it is 420-480 parts of sand, 25-35 parts of expanded vermiculite powder, 50-70 parts of powdered whiting, 30-40 parts of calcined kaolin, fine
35-40 parts of 5-10 parts of dimension plain ether and rubber powder.
Optionally, raw material is counted in parts by weight includes：
70-80 parts of aluminate cement, 360-400 parts of Portland cement, 32-34 parts of ester exchange at phosphorus, anhydrous sodium sulphate
21-23 parts, it is 440-460 parts of sand, 28-32 parts of expanded vermiculite powder, 55-60 parts of powdered whiting, 32-38 parts of calcined kaolin, fine
36-38 parts of 6-8 parts of dimension plain ether and rubber powder.
Still optionally further, raw material is counted in parts by weight includes：
75 parts of aluminate cement, 380 parts of Portland cement, 32 parts of ester exchange at phosphorus, 22 parts of anhydrous sodium sulphate, 450 parts of sand,
36 parts of 30 parts of expanded vermiculite powder, 58 parts of powdered whiting, 35 parts of calcined kaolin, 8 parts of cellulose ether and rubber powder.
In above-mentioned raw materials proportioning, using aluminate cement and the compound system of Portland cement, two kinds of cement advantages
Complementation can both make mortar strength stable and the volume stability of hardenite, and aluminate cement can substantially effectively absorb general again
The free calcium that logical silicate cement hydration generates is to reduce the basicity of mixed system, additionally it is possible to accelerate the aquation of cement principal goods phase,
Mortar is set to have the advantages of high-early-strength.
It was found that when aluminate cement and Portland cement mix, in the situation that aluminate cement incorporation is larger
Under, although entringite production quantity is increased slightly in a short time in aquation in slurry, entringite can constantly be changed into single sulfur type aquation
Calcium sulphoaluminate, and crystal transfer can also occur for the unstable state drated calcium aluminate that early stage generates, only mixed system hardened paste
Microstructure significantly deteriorates, macroscopically show as compression strength relatively fade out portland cement be greatly reduced, dry contraction substantially rise
It is high.
In the present invention, it was discovered that in the case where aluminate cement incorporation is larger, ester exchange at phosphorus and anhydrous sodium sulphate are added
Sulphur matter source is provided, can effectively inhibit the phenomenon that entringite is constantly changed into single sulfur type hydrated calcium aluminate sulfate, avoid unstable state water
Change the case where microstructure caused by calcium aluminate crystal transfer deteriorates, ensures that mixed system hardened paste is mixed in aluminate cement
Measure it is larger in the case of can also have the performance that compression strength is high, drying shrinkage value is small.
In some specific embodiments of the invention, the type of aluminate cement is CA-60, Portland cement
Strength grade is 42.5R, makes that the adhesion strength of mortar is good, structural behaviour is stablized.
Kaolinic addition can significantly improve the performances such as intensity and the freeze thawing resistance cycle of mortar.Using calcined kaolin, forge
Burning processing can reduce kaolinic surface energy, so that kaolinic dispersion performance is improved, can improve the intensity of product.
In some of the invention specific embodiments, the calcined kaolin is by the kaolinite calcined under the conditions of 550-700 DEG C
The kaolin calcined product composition calcined under the conditions of native calcined product and 1100-1200 DEG C.
Further, it the kaolin calcined product calcined under the conditions of 550-700 DEG C and is calcined under the conditions of 1100-1200 DEG C
Kaolin calcined product mass ratio be 1:2-3, such as can be 1:2、1:2.5、1:3 etc..
The product that kaolin is calcined under the conditions of 550-700 DEG C is mainly metakaolin, and kaolin is in 1100-1200 DEG C of item
The product calcined under part is predominantly like mullite, mullite and cristobalite.Inventor the study found that calcined kaolin according to above-mentioned
Ratio is coordinated, the raising with obvious effects improved to the performance of mortar.
Expanded vermiculite powder, powdered whiting and calcined kaolin cooperation improve physical organization's knot of cement mortar hardenite
Structure helps to improve the compactness of mortar, and mortar is made to have higher hydration rate and early stage stretch-bonded, resistance to compression, anti-folding by force
Degree, makes hardenite not shrink, cracking resistance.
Cross-linking reaction is generated in rubber powder and cement hydration process, improves physical organization's structure of mortar hardening body, in alleviation
Stress reduces the generation of micro-crack, enhances the compactness of polymer cement material.
Cellulose ether improves the wet viscosity of wet mortar as thickener, main control consistency of mortar and open hour,
Improve the adhesion strength of mortar.
Rubber powder and cellulose ether coordinate cement compound system, can effectively improve the flexible mortar for being bonded light partition wall
Convenience for construction, while improve this for be bonded light partition wall flexible mortar adhesion strength.
In some specific embodiments of the invention, cellulose ether is by methylcellulose, hydroxyethyl cellulose and hydroxypropyl
Ylmethyl cellulose forms.
Further, the mass ratio of methylcellulose, hydroxyethyl cellulose and hydroxypropyl methyl cellulose is followed successively by 3-
4:0.5-1.5:1, such as can be 3:1:1、4:1:1、3:0.5:1、4:0.5:1、 3:1.5:1、4:1.5:1 etc..
Through inventor the study found that being coordinated according to a certain percentage with cementitious composite system using above-mentioned three kinds of cellulose ethers,
The mobility that can effectively improve mortar improves the intensity of mortar；Make this for being bonded the flexible mortar of light partition wall after construction
Hardening and drying shrinkage process in effectively reduce crackle or crack, improve mechanical strength.
The present invention also provides a kind of preparation methods for being bonded the flexible mortar of light partition wall, include according to above-mentioned group
Distribution ratio mixes raw material.
Method is simple, mixes feed components according to aforementioned proportion, and obtained mortar, which correspondingly has, to be bonded by force
The advantages that degree is high, crack resistance is good.
Further, the batch mixing of raw material includes：By aluminate cement, Portland cement, ester exchange at phosphorus, anhydrous sodium sulphate
And the sand of 30-45% is mixed, and obtains the first mixture；By the first mixture, the expanded vermiculite powder of 30-50%, heavy carbonic acid
Calcium, calcined kaolin, cellulose ether and rubber powder are mixed, and obtain the second mixture；By the second mixture, remaining sand and remain
Remaining expanded vermiculite powder is mixed.Wherein 30-45% refers to the mass ratio for accounting for sand, and 30-50% refers to the quality for accounting for expanded vermiculite powder
In vain.
According to aforesaid operations sequence carry out batch mixing, so as to get for be bonded light partition wall flexible mortar skeleton structure
There is microstructure uniformly, fine and close with each component, help to improve the synthesis of the flexible mortar for being used to be bonded light partition wall
Performance.
The feature and performance of the present invention are described in further detail with reference to embodiments.
Embodiment 1
A kind of flexible mortar for being bonded light partition wall, raw material include：
The Portland cement 380kg of aluminate cement 75kg, 42.5R of CA-60, ester exchange at phosphorus 32kg, member are bright
Powder 22kg, sand 450kg, expanded vermiculite powder 30kg, powdered whiting 58kg, calcined kaolin 35kg, cellulose ether 8kg and glue
Powder 36kg.
Wherein, calcined kaolin is 1 by mass ratio:The kaolin calcined product calcined under the conditions of 550-700 DEG C of 2.5 and
The kaolin calcined product composition calcined under the conditions of 1100-1200 DEG C；Cellulose ether is 3 by mass ratio:1:1 Methyl cellulose
Element, hydroxyethyl cellulose and hydroxypropyl methyl cellulose composition.
Preparation method includes：
S1, by aluminate cement, Portland cement, ester exchange at phosphorus, anhydrous sodium sulphate and 40% sand be mixed,
Obtain the first mixture.
S2, by the first mixture, 40% expanded vermiculite powder, powdered whiting, calcined kaolin, cellulose ether and rubber powder
It is mixed, obtains the second mixture
S3, the second mixture, remaining 60% sand and remaining 60% expanded vermiculite powder are mixed, it is handy
In the flexible mortar of bonding light partition wall.
Embodiment 2
A kind of flexible mortar for being bonded light partition wall, raw material include：
The Portland cement 400kg of aluminate cement 70kg, 42.5R of CA-60, ester exchange at phosphorus 32kg, member are bright
Powder 23kg, sand 440kg, expanded vermiculite powder 32kg, powdered whiting 55kg, calcined kaolin 38kg, cellulose ether 6kg and glue
Powder 38kg.
Wherein, calcined kaolin is 1 by mass ratio:The kaolin calcined product calcined under the conditions of 550-700 DEG C of 3 and
The kaolin calcined product composition calcined under the conditions of 1100-1200 DEG C；Cellulose ether is 4 by mass ratio:1:1 Methyl cellulose
Element, hydroxyethyl cellulose and hydroxypropyl methyl cellulose composition.
Preparation method includes：
S1, by aluminate cement, Portland cement, ester exchange at phosphorus, anhydrous sodium sulphate and 45% sand be mixed,
Obtain the first mixture.
S2, by the first mixture, 30% expanded vermiculite powder, powdered whiting, calcined kaolin, cellulose ether and rubber powder
It is mixed, obtains the second mixture
S3, the second mixture, remaining 55% sand and remaining 70% expanded vermiculite powder are mixed, it is handy
In the flexible mortar of bonding light partition wall.
Embodiment 3
A kind of flexible mortar for being bonded light partition wall, raw material include：
The Portland cement 360kg of aluminate cement 80kg, 42.5R of CA-60, ester exchange at phosphorus 34kg, member are bright
Powder 21kg, sand 460kg, expanded vermiculite powder 28kg, powdered whiting 60kg, calcined kaolin 32kg, cellulose ether 8kg and glue
Powder 36kg.
Wherein, calcined kaolin is 1 by mass ratio:The kaolin calcined product calcined under the conditions of 550-700 DEG C of 2 and
The kaolin calcined product composition calcined under the conditions of 1100-1200 DEG C；Cellulose ether is 3 by mass ratio:0.5:1 Methyl cellulose
Element, hydroxyethyl cellulose and hydroxypropyl methyl cellulose composition.
Preparation method includes：
S1, by aluminate cement, Portland cement, ester exchange at phosphorus, anhydrous sodium sulphate and 30% sand be mixed,
Obtain the first mixture.
S2, by the first mixture, 50% expanded vermiculite powder, powdered whiting, calcined kaolin, cellulose ether and rubber powder
It is mixed, obtains the second mixture
S3, the second mixture, remaining 70% sand and remaining 50% expanded vermiculite powder are mixed, it is handy
In the flexible mortar of bonding light partition wall.
Embodiment 4
A kind of flexible mortar for being bonded light partition wall, raw material include：
The Portland cement 420kg of aluminate cement 60kg, 42.5R of CA-60, ester exchange at phosphorus 30kg, member are bright
Powder 24kg, sand 420kg, expanded vermiculite powder 35kg, powdered whiting 50kg, calcined kaolin 40kg, cellulose ether 5kg and glue
Powder 40kg.
Wherein, calcined kaolin is 1 by mass ratio:The kaolin calcined product calcined under the conditions of 550-700 DEG C of 2.5 and
The kaolin calcined product composition calcined under the conditions of 1100-1200 DEG C；Cellulose ether is 3 by mass ratio:1.5:1 Methyl cellulose
Element, hydroxyethyl cellulose and hydroxypropyl methyl cellulose composition.
Preparation method is with reference to shown in embodiment 1.
Embodiment 5
A kind of flexible mortar for being bonded light partition wall, raw material include：
The Portland cement 350kg of aluminate cement 90kg, 42.5R of CA-60, ester exchange at phosphorus 352kg, member are bright
Powder 20kg, sand 480kg, expanded vermiculite powder 25kg, powdered whiting 70kg, calcined kaolin 30kg, cellulose ether 10kg and
Rubber powder 35kg.
Wherein, calcined kaolin is 1 by mass ratio:The kaolin calcined product calcined under the conditions of 550-700 DEG C of 2.5 and
The kaolin calcined product composition calcined under the conditions of 1100-1200 DEG C；Cellulose ether is 3 by mass ratio:1:1 Methyl cellulose
Element, hydroxyethyl cellulose and hydroxypropyl methyl cellulose composition.
Preparation method is with reference to shown in embodiment 1.
Embodiment 6
A kind of flexible mortar for being bonded light partition wall, raw material include：
The Portland cement 380kg of aluminate cement 75kg, 42.5R of CA-60, ester exchange at phosphorus 32kg, member are bright
Powder 22kg, sand 450kg, expanded vermiculite powder 30kg, powdered whiting 58kg, calcined kaolin 35kg, cellulose ether 8kg and glue
Powder 36kg.
Wherein, the kaolin calcined product that calcined kaolin is calcined under the conditions of being 550-700 DEG C；Cellulose ether is by mass ratio
It is 3:1:1 methylcellulose, hydroxyethyl cellulose and hydroxypropyl methyl cellulose composition.
Preparation method is with reference to shown in embodiment 1.
Embodiment 7
A kind of flexible mortar for being bonded light partition wall, raw material include：
The Portland cement 380kg of aluminate cement 75kg, 42.5R of CA-60, ester exchange at phosphorus 32kg, member are bright
Powder 22kg, sand 450kg, expanded vermiculite powder 30kg, powdered whiting 58kg, calcined kaolin 35kg, cellulose ether 8kg and glue
Powder 36kg.
Wherein, the kaolin calcined product that calcined kaolin is calcined under the conditions of being 1100-1200 DEG C；Cellulose ether is by quality
Than being 3:1:1 methylcellulose, hydroxyethyl cellulose and hydroxypropyl methyl cellulose composition.
Preparation method is with reference to shown in embodiment 1.
Embodiment 8
A kind of flexible mortar for being bonded light partition wall, raw material include：
The Portland cement 380kg of aluminate cement 75kg, 42.5R of CA-60, ester exchange at phosphorus 32kg, member are bright
Powder 22kg, sand 450kg, expanded vermiculite powder 30kg, powdered whiting 58kg, calcined kaolin 35kg, cellulose ether 8kg and glue
Powder 36kg.
Wherein, the kaolin calcined product that calcined kaolin is calcined under the conditions of being 1100-1200 DEG C；Cellulose ether is methyl
Cellulose.
Preparation method is with reference to shown in embodiment 1.
Embodiment 9
A kind of flexible mortar for being bonded light partition wall, raw material include：
The Portland cement 380kg of aluminate cement 75kg, 42.5R of CA-60, ester exchange at phosphorus 32kg, member are bright
Powder 22kg, sand 450kg, expanded vermiculite powder 30kg, powdered whiting 58kg, calcined kaolin 35kg, cellulose ether 8kg and glue
Powder 36kg.
Wherein, the kaolin calcined product that calcined kaolin is calcined under the conditions of being 1100-1200 DEG C；Cellulose ether is by quality
Than being 3:2 methylcellulose and hydroxypropyl methyl cellulose composition.
Preparation method is with reference to shown in embodiment 1.
Embodiment 10
A kind of flexible mortar for being bonded light partition wall, raw material include：
The Portland cement 380kg of aluminate cement 75kg, 42.5R of CA-60, ester exchange at phosphorus 32kg, member are bright
Powder 22kg, sand 450kg, expanded vermiculite powder 30kg, powdered whiting 58kg, calcined kaolin 35kg, cellulose ether 8kg and glue
Powder 36kg.
Wherein, calcined kaolin is 1 by mass ratio:The kaolin calcined product calcined under the conditions of 550-700 DEG C of 2.5 and
The kaolin calcined product composition calcined under the conditions of 1100-1200 DEG C；Cellulose ether is 3 by mass ratio:1:1 Methyl cellulose
Element, hydroxyethyl cellulose and hydroxypropyl methyl cellulose composition.
Preparation method includes：Raw material is mixed together stirring 10-20min, obtains the flexible sand for being bonded light partition wall
Slurry.
Comparative example 1
A kind of flexible mortar for being bonded light partition wall, difference lies in cement only with common silicic acid with embodiment 1
Salt cement, raw material include：
Portland cement 455kg, ester exchange at phosphorus 32kg, anhydrous sodium sulphate 22kg, sand 450kg, the expanded vermiculite of 42.5R
Powder 30kg, powdered whiting 58kg, calcined kaolin 35kg, cellulose ether 8kg and rubber powder 36kg.
Wherein, calcined kaolin is 1 by mass ratio:The kaolin calcined product calcined under the conditions of 550-700 DEG C of 2.5 and
The kaolin calcined product composition calcined under the conditions of 1100-1200 DEG C；Cellulose ether is 3 by mass ratio:1:1 Methyl cellulose
Element, hydroxyethyl cellulose and hydroxypropyl methyl cellulose composition.
Preparation method includes：
S1, by Portland cement, ester exchange at phosphorus, anhydrous sodium sulphate and 40% sand be mixed, obtain the first mixture.
S2, by the first mixture, 40% expanded vermiculite powder, powdered whiting, calcined kaolin, cellulose ether and rubber powder
It is mixed, obtains the second mixture
S3, the second mixture, remaining 60% sand and remaining 60% expanded vermiculite powder are mixed, it is handy
In the flexible mortar of bonding light partition wall.
Comparative example 2
A kind of flexible mortar for being bonded light partition wall, it is swollen difference lies in being replaced with calcined kaolin with embodiment 1
Swollen vermiculite power and powdered whiting, raw material include：
The Portland cement 380kg of aluminate cement 75kg, 42.5R of CA-60, ester exchange at phosphorus 32kg, member are bright
Powder 22kg, sand 450kg, calcined kaolin 120kg, cellulose ether 8kg and rubber powder 36kg.
Wherein, calcined kaolin is 1 by mass ratio:The kaolin calcined product calcined under the conditions of 550-700 DEG C of 2.5 and
The kaolin calcined product composition calcined under the conditions of 1100-1200 DEG C；Cellulose ether is 3 by mass ratio:1:1 Methyl cellulose
Element, hydroxyethyl cellulose and hydroxypropyl methyl cellulose composition.
Preparation method includes：
S1, by aluminate cement, Portland cement, ester exchange at phosphorus, anhydrous sodium sulphate and 40% sand be mixed,
Obtain the first mixture.
S2, the first mixture, calcined kaolin, cellulose ether and rubber powder are mixed, obtain the second mixture
S3, the sand of the second mixture and remaining 60% is mixed, obtains the flexible sand for being bonded light partition wall
Slurry.
Test example
Performance detection, knot are carried out to the flexible mortar for being bonded light partition wall of embodiment 1-10 and comparative example 1-2
Fruit is as shown in table 1.
1 performance test table of table
To sum up, provided by the present invention for the flexible mortar of bonding light partition wall, using aluminate cement and common silicic acid
Salt cement meets system, and two kinds of cement have complementary advantages, and can both make mortar strength stable and the volume stability of hardenite, aluminic acid
Salt cement can substantially effectively absorb again Portland cement aquation generation free calcium to reduce the basicity of mixed system,
The aquation that can also accelerate cement principal goods phase, makes mortar have the advantages of high-early-strength.Inventor is the study found that in above two
Under the compound system of cement, ester exchange at phosphorus and anhydrous sodium sulphate are added, entringite can effectively be inhibited constantly to be changed into single sulfur type aquation
The phenomenon that calcium sulphoaluminate, ensures mortar at the case where avoiding caused by unstable state drated calcium aluminate crystal transfer microstructure from deteriorating
Compression strength is high, drying shrinkage value is small.Expanded vermiculite powder, powdered whiting and calcined kaolin cooperation improve cement mortar
Physical organization's structure of hardenite, helps to improve the compactness of mortar, makes mortar that there is higher hydration rate and early stage to draw
Bonding, resistance to compression, flexural strength are stretched, so that hardenite is not shunk, cracking resistance.
Preparation method provided by the present invention for the flexible mortar for being bonded light partition wall, prepares simply, according to above-mentioned ratio
Example mixes feed components, and obtained mortar correspondingly has the advantages that adhesion strength is high, crack resistance is good.
Embodiments described above is a part of the embodiment of the present invention, instead of all the embodiments.The reality of the present invention
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
Claims (10)
1. a kind of flexible mortar for being bonded light partition wall, which is characterized in that its raw material is counted in parts by weight includes：
60-90 parts of aluminate cement, 350-420 parts of Portland cement, 30-35 parts of ester exchange at phosphorus, anhydrous sodium sulphate 20-24
Part, 420-480 parts of sand, 25-35 parts of expanded vermiculite powder, 50-70 parts of powdered whiting, 30-40 parts of calcined kaolin, cellulose ether
5-10 parts and 35-40 parts of rubber powder.
2. the flexible mortar according to claim 1 for being bonded light partition wall, which is characterized in that the raw material is by weight
Number meter includes：
Described aluminate cement 70-80 parts, it is Portland cement 360-400 parts described, ester exchange at phosphorus 32-34 parts described,
Described anhydrous sodium sulphate 21-23 parts, sand 440-460 parts described, expanded vermiculite powder 28-32 parts described, the powdered whiting 55-60
Part, it is calcined kaolin 32-38 parts described, cellulose ether 6-8 parts and rubber powder 36-38 parts described described.
3. the flexible mortar according to claim 1 for being bonded light partition wall, which is characterized in that the raw material is by weight
Number meter includes：
75 parts of the aluminate cement, 380 parts of the Portland cement, 32 parts of the ester exchange at phosphorus, the anhydrous sodium sulphate
22 parts, 450 parts of the sand, 30 parts of the expanded vermiculite powder, 58 parts of the powdered whiting, 35 parts of the calcined kaolin, institute
State 36 parts of 8 parts of cellulose ether and the rubber powder.
4. the flexible mortar according to claim 1 for being bonded light partition wall, which is characterized in that the calcined kaolin
By the kaolin calcined product calcined under the conditions of 550-700 DEG C and the kaolin calcined product calcined under the conditions of 1100-1200 DEG C
Composition.
5. the flexible mortar according to claim 4 for being bonded light partition wall, which is characterized in that 550-700 DEG C of condition
The mass ratio for the kaolin calcined product calcined under the conditions of the kaolin calcined product of lower calcining and 1100-1200 DEG C is 1:2-3.
6. being used to be bonded the flexible mortar of light partition wall according to claim 1-5 any one of them, which is characterized in that the aluminium
The type of acid salt cement is CA-60, and the strength grade of the Portland cement is 42.5R.
7. being used to be bonded the flexible mortar of light partition wall according to claim 1-5 any one of them, which is characterized in that the fibre
The plain ether of dimension is made of methylcellulose, hydroxyethyl cellulose and hydroxypropyl methyl cellulose.
8. the flexible mortar according to claim 7 for being bonded light partition wall, which is characterized in that in the cellulose ether
The mass ratio of the methylcellulose, the hydroxyethyl cellulose and the hydroxypropyl methyl cellulose is followed successively by 3-4:0.5-
1.5:1。
9. being used to be bonded the preparation method of the flexible mortar of light partition wall such as claim 1-8 any one of them, feature exists
In the raw material is mixed.
10. preparation method according to claim 9, which is characterized in that the mixing of the raw material includes：By the aluminate
The sand mixing of cement, the Portland cement, the ester exchange at phosphorus, the anhydrous sodium sulphate and 30-45%, obtains
First mixture；First mixture, the expanded vermiculite powder of 30-50%, the powdered whiting, the calcining is high
Ridge soil, the cellulose ether and the rubber powder are mixed, and obtain the second mixture；By second mixture, remaining described
Sand and the remaining expanded vermiculite powder are mixed.
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| ES2169605T3 (en) * | 1998-03-20 | 2002-07-01 | Pci Augsburg Gmbh | FLOWER AND HYDRAULIC FRAGUADO MORTAR SYSTEM. |
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