CN107721320A - A kind of water conservation anti-caking dry-mixed mortar - Google Patents
A kind of water conservation anti-caking dry-mixed mortar Download PDFInfo
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- CN107721320A CN107721320A CN201711149342.XA CN201711149342A CN107721320A CN 107721320 A CN107721320 A CN 107721320A CN 201711149342 A CN201711149342 A CN 201711149342A CN 107721320 A CN107721320 A CN 107721320A
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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
-
- 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
- C04B2111/00586—Roofing materials
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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)
- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to building mortar technical field, and in particular to a kind of water conservation anti-caking dry-mixed mortar, include following raw material：Cement, flyash, silicon ash, aggregate, modified wood-fibred, composite assistant；The composite assistant is mixed to get by sodium thiosulfate, zinc stearate, sulfamic acid sodium and calcium formate.The present invention has advantages below compared with prior art：By being modified to wood-fibred in the present invention, make it easily scattered in the composite, it can be well mixed in mixing material, with preferable water imbibition and water-retaining property, aggregate need not be dried using preceding, it is also not in oxidation or caking to place for a long time, simplify workflow, the performance of material is improved, the use of composite assistant can shorten setting time, improve service efficiency.
Description
Technical field
The invention belongs to building mortar technical field, and in particular to a kind of water conservation anti-caking dry-mixed mortar.
Background technology
Dry-mixed mortar refers to aggregate, inorganic coagulation material and additive after drying screening process etc. according to a certain percentage
A kind of graininess or the powdery that physical mixed forms are carried out, building site is transported in the form of packed or be in bulk, after adding water to mix and stir, you can
The material directly used, dry-mixed mortar are had been widely cited in building and finishing, are such as built by laying bricks or stones, engineering of wiping one's face, with urbanization
The continuous acceleration of process, building and repairs profession are obtained for one of rapid development, the dry-mixed material emerging as building materials field,
Also increasingly supply falls short of demand for the demand of dry-mixed mortar, still, due in dry-mixed mortar fractions meet water after can be oxidized and
Caking, influences to use, and the building aggregate used in dry-mixed mortar typically contains more moisture, therefore, in order to prevent tradition
Dry-mixed mortar is aoxidized and lumpd before use, must will be built aggregate drying and processing before dry-mixed mortar is prepared, be caused dry-mixed sand
The preparation process of slurry is cumbersome, adds the preparation cost of dry-mixed mortar.
The content of the invention
The purpose of the present invention is the problem of aoxidizing, lump before use for existing dry-mixed mortar, there is provided Yi Zhongbao
Water anti-caking dry-mixed mortar.
The present invention is achieved by the following technical solutions：A kind of water conservation anti-caking dry-mixed mortar, includes following parts by weight
Raw material：Cement 22-32 parts, flyash 6-10 parts, silicon ash 1.4-2.6 parts, aggregate 35-45 parts, modified wood-fibred 12-18 parts,
Composite assistant 0.2-0.4 parts；The composite assistant is by sodium thiosulfate, zinc stearate, sulfamic acid sodium and calcium formate with weight
Than 5:4:1:1 is mixed to get；
Wherein, the preparation method of the modified wood-fibred comprises the following steps：
（1）Wood raw material is broken into the chopped fiber of 80-100 mesh, it is standby that 4-6 hours are handled under the conditions of 80 DEG C of far infrared；
（2）Chopped fiber after above-mentioned processing is put into constant-temperature magnetic stirring device, in constant-temperature magnetic stirring device be provided with equivalent to
The mass concentration of short 3 times of wood raw material is 12-15% sodium hydroxide solution, and keeping temperature is to connect under 55-65 DEG C of air-proof condition
Continuous stirring 3.5-4.5 hours, after the completion of drain away the water it is standby；
（3）By the material after above-mentioned processing and methyl propionate, the 1.2-1.8% divinyl equivalent to its weight 4.5-6.5%
Sulfone, temperature be 55-62 DEG C under conditions of stirring reaction, the reaction time is 2-3 hours, after the completion of stand 8- under normal temperature condition
10 hours, then washed 2-4 times with absolute ethyl alcohol, after the completion of constant weight is dried under flow conditions, produce.
As further improvement of these options, the cement is low-heat portland cement or moderate-heat portland cement；
The aggregate is to have one or more of mixing in the pulverized particles of Machine-made Sand, river sand or building waste, and the fineness of aggregate is less than
2mm；The wood chip is willow wood chip or Chinese scholartree wood chip.
As further improvement of these options, the step（2）In mixing speed be 1050-1150 revs/min；
The step（3）In airflow drying temperature be 85-95 DEG C.
The present invention has advantages below compared with prior art：By being modified to wood-fibred in the present invention, make it in composite wood
Easily disperse in material, can be well mixed in mixing material, there is preferable water imbibition and water-retaining property, after use, mitigate dry
Powder mortar unit weight, the mechanical property of mortar is improved, volume stability is good, is not in that hollowing or cracking are existing in use
As, it can be widely applied to build by laying bricks or stones in the construction materials such as ground, wall or roof slab, aggregate need not be dried using preceding,
It is also not in oxidation or caking to place for a long time, simplifies workflow, improves the performance of material, composite assistant
Using setting time can be shortened, service efficiency is improved.
Embodiment
Embodiment 1
A kind of water conservation anti-caking dry-mixed mortar, include the raw material of following parts by weight：28 parts of cement, 8 parts of flyash, 2.2 parts of silicon ash,
40 parts of aggregate, modified 15 parts of wood-fibred, 0.3 part of composite assistant；The composite assistant is by sodium thiosulfate, zinc stearate, amino
Sodium sulfonate and calcium formate are with weight ratio 5:4:1:1 is mixed to get；
Wherein, the preparation method of the modified wood-fibred comprises the following steps：
（1）Wood raw material is broken into the chopped fiber of 90 mesh, handled under the conditions of 80 DEG C of far infrared 4 hours it is standby；
（2）Chopped fiber after above-mentioned processing is put into constant-temperature magnetic stirring device, in constant-temperature magnetic stirring device be provided with equivalent to
The mass concentration of short 3 times of wood raw material is 12% sodium hydroxide solution, and keeping temperature is to be continuously stirred under 60 DEG C of air-proof condition
3.5 hours, after the completion of drain away the water it is standby；
（3）By the material after above-mentioned processing and methyl propionate, 1.2% divinylsulfone equivalent to its weight 6.5%, in temperature
For stirring reaction under conditions of 58 DEG C, the reaction time is 2.5 hours, after the completion of stand 9 hours under normal temperature condition, then with nothing
Water-ethanol wash 3 times, after the completion of be dried to constant weight under flow conditions, produce.
Wherein, the cement is PMH moderate-heat portland cements；The aggregate is the crushing for having Machine-made Sand and building waste
Particle is by weight 4:1, the fineness of aggregate is less than 2mm；The wood chip is willow wood chip；The step（2）In mixing speed
For 1100 revs/min；The step（3）In airflow drying temperature be 90 DEG C.
Embodiment 2
A kind of water conservation anti-caking dry-mixed mortar, include the raw material of following parts by weight：22 parts of cement, 6 parts of flyash, 2.6 parts of silicon ash,
35 parts of aggregate, modified 12 parts of wood-fibred, 0.2 part of composite assistant；The composite assistant is by sodium thiosulfate, zinc stearate, amino
Sodium sulfonate and calcium formate are with weight ratio 5:4:1:1 is mixed to get；
Wherein, the preparation method of the modified wood-fibred comprises the following steps：
（1）Wood raw material is broken into the chopped fiber of 80 mesh, handled under the conditions of 80 DEG C of far infrared 4 hours it is standby；
（2）Chopped fiber after above-mentioned processing is put into constant-temperature magnetic stirring device, in constant-temperature magnetic stirring device be provided with equivalent to
The mass concentration of short 3 times of wood raw material is 15% sodium hydroxide solution, and keeping temperature is to be continuously stirred under 55 DEG C of air-proof condition
4.5 hours, after the completion of drain away the water it is standby；
（3）By the material after above-mentioned processing and methyl propionate, 1.8% divinylsulfone equivalent to its weight 6.5%, in temperature
For stirring reaction under conditions of 62 DEG C, the reaction time is 3 hours, after the completion of stand 10 hours under normal temperature condition, then with nothing
Water-ethanol wash 4 times, after the completion of be dried to constant weight under flow conditions, produce.
Wherein, the cement is PLH low-heat portland cements；The aggregate is to have Machine-made Sand, river sand by weight 3:1
Mixing, the fineness of aggregate are less than 2mm；The wood chip is Chinese scholartree wood chip；The step（2）In mixing speed be 1150 revs/min
Clock；The step（3）In airflow drying temperature be 85 DEG C.
Embodiment 3
A kind of water conservation anti-caking dry-mixed mortar, include the raw material of following parts by weight：32 parts of cement, 10 parts of flyash, silicon ash 1.4
Part, 45 parts of aggregate, modified 18 parts of wood-fibred, 0.4 part of composite assistant；The composite assistant is by sodium thiosulfate, zinc stearate, ammonia
Base sodium sulfonate and calcium formate are with weight ratio 5:4:1:1 is mixed to get；
Wherein, the preparation method of the modified wood-fibred comprises the following steps：
（1）Wood raw material is broken into the chopped fiber of 100 mesh, handled under the conditions of 80 DEG C of far infrared 6 hours it is standby；
（2）Chopped fiber after above-mentioned processing is put into constant-temperature magnetic stirring device, in constant-temperature magnetic stirring device be provided with equivalent to
The mass concentration of short 3 times of wood raw material is 12% sodium hydroxide solution, and keeping temperature is to be continuously stirred under 65 DEG C of air-proof condition
3.5 hours, after the completion of drain away the water it is standby；
（3）By the material after above-mentioned processing and methyl propionate, 1.2% divinylsulfone equivalent to its weight 4.5%, in temperature
For stirring reaction under conditions of 55 DEG C, the reaction time is 2 hours, after the completion of stand 8 hours under normal temperature condition, then with anhydrous
Ethanol wash 2 times, after the completion of be dried to constant weight under flow conditions, produce.
Wherein, the cement is PLH low-heat portland cements；The aggregate is the crushing for having Machine-made Sand and building waste
Particle is by weight 5:1 mixing, the fineness of aggregate are less than 2mm；The wood chip is Chinese scholartree wood chip；The step（2）In stirring
Speed is 1050 revs/min；The step（3）In airflow drying temperature be 95 DEG C.
Embodiment 4
A kind of water conservation anti-caking dry-mixed mortar, include the raw material of following parts by weight：28 parts of cement, 8 parts of flyash, 2.2 parts of silicon ash,
40 parts of aggregate, modified 15 parts of wood-fibred, 0.3 part of composite assistant；The composite assistant is by sodium thiosulfate, zinc stearate, amino
Sodium sulfonate and calcium formate are with weight ratio 5:4:1:1 is mixed to get；
Wherein, the preparation method of the modified wood-fibred comprises the following steps：
（1）Wood raw material is broken into the chopped fiber of 90 mesh, handled under the conditions of 80 DEG C of far infrared 4 hours it is standby；
（2）Chopped fiber after above-mentioned processing is put into constant-temperature magnetic stirring device, in constant-temperature magnetic stirring device be provided with equivalent to
The mass concentration of short 3 times of wood raw material is 12% sodium hydroxide solution, and keeping temperature is to be continuously stirred under 60 DEG C of air-proof condition
3.5 hours, after the completion of drain away the water it is standby；
（3）By the material after above-mentioned processing and methyl propionate, 1.2% divinylsulfone equivalent to its weight 6.5%, in temperature
For stirring reaction under conditions of 58 DEG C, the reaction time is 2.5 hours, after the completion of stand 9 hours under normal temperature condition, then with nothing
Water-ethanol wash 3 times, after the completion of be dried to constant weight under flow conditions, produce.
Wherein, the cement is PMH moderate-heat portland cements；The aggregate is to have Machine-made Sand, river sand or building waste
Pulverized particles by weight 4:3:1, the fineness of aggregate is less than 2mm；The wood chip is willow wood chip；The step（2）In
Mixing speed is 1100 revs/min；The step（3）In airflow drying temperature be 90 DEG C.
Embodiment 5
A kind of water conservation anti-caking dry-mixed mortar, include the raw material of following parts by weight：28 parts of cement, 8 parts of flyash, 2.2 parts of silicon ash,
40 parts of aggregate, modified 15 parts of wood-fibred, 0.3 part of composite assistant；The composite assistant is by sodium thiosulfate, zinc stearate, amino
Sodium sulfonate and calcium formate are with weight ratio 5:4:1:1 is mixed to get；
Wherein, the preparation method of the modified wood-fibred comprises the following steps：
（1）Wood raw material is broken into the chopped fiber of 90 mesh, handled under the conditions of 80 DEG C of far infrared 4 hours it is standby；
（2）Chopped fiber after above-mentioned processing is put into constant-temperature magnetic stirring device, in constant-temperature magnetic stirring device be provided with equivalent to
The mass concentration of short 3 times of wood raw material is 12% sodium hydroxide solution, and keeping temperature is to be continuously stirred under 60 DEG C of air-proof condition
3.5 hours, after the completion of drain away the water it is standby；
（3）By the material after above-mentioned processing and methyl propionate, 1.2% divinylsulfone equivalent to its weight 6.5%, in temperature
For stirring reaction under conditions of 58 DEG C, the reaction time is 2.5 hours, after the completion of stand 9 hours under normal temperature condition, then with nothing
Water-ethanol wash 3 times, after the completion of be dried to constant weight under flow conditions, produce.
Wherein, the cement is PLH low-heat portland cements；The aggregate is to have Machine-made Sand, river sand or building waste
Pulverized particles by weight 4:3:1, the fineness of aggregate is less than 2mm；The wood chip is willow wood chip；The step（2）In
Mixing speed is 1100 revs/min；The step（3）In airflow drying temperature be 90 DEG C.
Control group 1 is set, modified wood-fibred in embodiment 5 is substituted for etc. to the wood-fibred of weight, remaining content is constant；If
Control group 2 is put, modified wood-fibred in embodiment 5 is removed, remaining content is constant；Control group 3 is set, by auxiliary agent in embodiment 5
The sodium thiosulfate of weight such as replace with, remaining content is constant；Gained dry-mixed mortar is prepared to each group to deposit in identical environment
After putting 3 months, detect its caking situation, at the same according to GB/T25181-2010 methods to obtain setting time, compression strength,
Water-retaining property and denseness loss late are detected, and obtain following result：
Table 1
| Group | Moisture content（%） | Caking situation | Setting time（h） | Compression strength（MPa） | Water-retaining property（%） | Denseness loss late（%） |
| Embodiment 1 | 0.78 | Nothing | 3.7 | 25.2 | 92.7 | 22.3 |
| Embodiment 2 | 0.79 | Nothing | 3.5 | 24.7 | 93.4 | 23.5 |
| Embodiment 3 | 0.75 | Nothing | 3.8 | 25.4 | 92.8 | 22.8 |
| Embodiment 4 | 0.82 | Nothing | 3.4 | 27.6 | 93.2 | 24.6 |
| Embodiment 5 | 0.85 | Nothing | 3.2 | 28.4 | 93.6 | 24.9 |
| Control group 1 | 0.84 | Nothing | 6.4 | 6.4 | 93.7 | 20.3 |
| Control group 2 | 0.47 | Have | 4.8 | 11.5 | 89.2 | 22.4 |
| Control group 3 | 0.64 | Nothing | 5.3 | 24.8 | 93.1 | 23.7 |
Can be seen that the dry-mixed mortar that in the present invention prepared by method by data in table 1 has preferable water-retaining property, for a long time
Caking phenomenon will not occur after placement, while compression strength improves on the basis of existing, combination property is preferable, its
Middle auxiliary agent can shorten setting time, improve service efficiency, and the scope of application is wider.
Claims (5)
1. a kind of water conservation anti-caking dry-mixed mortar, it is characterised in that include the raw material of following parts by weight：Cement 22-32 parts, fine coal
Grey 6-10 parts, silicon ash 1.4-2.6 parts, aggregate 35-45 parts, modified wood-fibred 12-18 parts, composite assistant 0.2-0.4 parts；It is described multiple
Auxiliary agent is closed by sodium thiosulfate, zinc stearate, sulfamic acid sodium and calcium formate with weight ratio 5:4:1:1 is mixed to get；
Wherein, the preparation method of the modified wood-fibred comprises the following steps：
（1）Wood raw material is broken into the chopped fiber of 80-100 mesh, it is standby that 4-6 hours are handled under the conditions of 80 DEG C of far infrared；
（2）Chopped fiber after above-mentioned processing is put into constant-temperature magnetic stirring device, in constant-temperature magnetic stirring device be provided with equivalent to
The mass concentration of short 3 times of wood raw material is 12-15% sodium hydroxide solution, and keeping temperature is to connect under 55-65 DEG C of air-proof condition
Continuous stirring 3.5-4.5 hours, after the completion of drain away the water it is standby；
（3）By the material after above-mentioned processing and methyl propionate, the 1.2-1.8% divinyl equivalent to its weight 4.5-6.5%
Sulfone, temperature be 55-62 DEG C under conditions of stirring reaction, the reaction time is 2-3 hours, after the completion of stand 8- under normal temperature condition
10 hours, then washed 2-4 times with absolute ethyl alcohol, after the completion of constant weight is dried under flow conditions, produce.
2. a kind of water conservation anti-caking dry-mixed mortar as claimed in claim 1, it is characterised in that the cement is low-heat silicate water
Mud or moderate-heat portland cement；The aggregate is to have the one or more in the pulverized particles of Machine-made Sand, river sand or building waste
Mixing, the fineness of aggregate are less than 2mm.
3. a kind of water conservation anti-caking dry-mixed mortar as claimed in claim 1, it is characterised in that the wood chip is willow wood chip or Chinese scholartree
Trees are considered to be worth doing.
A kind of 4. water conservation anti-caking dry-mixed mortar as claimed in claim 1, it is characterised in that the step（2）In stirring speed
Spend for 1050-1150 revs/min.
A kind of 5. water conservation anti-caking dry-mixed mortar as claimed in claim 1, it is characterised in that the step（3）In air-flow dry
Dry temperature is 85-95 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711149342.XA CN107721320B (en) | 2017-11-18 | 2017-11-18 | Water-retention anti-caking dry-mixed mortar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711149342.XA CN107721320B (en) | 2017-11-18 | 2017-11-18 | Water-retention anti-caking dry-mixed mortar |
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| Publication Number | Publication Date |
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| CN107721320A true CN107721320A (en) | 2018-02-23 |
| CN107721320B CN107721320B (en) | 2020-04-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204277A (en) * | 2019-06-04 | 2019-09-06 | 东方雨虹民用建材有限责任公司 | A kind of anti-caking glue for tile and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696100A (en) * | 2009-09-25 | 2010-04-21 | 北京艺高世纪科技股份有限公司 | High-performance base mortar |
| CN102093021A (en) * | 2010-12-28 | 2011-06-15 | 济南高新区工业废弃物利用研发中心 | Slag micro-powder dry mixed mortar |
| CN105174852A (en) * | 2015-10-22 | 2015-12-23 | 福建江夏学院 | Recycled aggregate concrete and preparation method thereof |
| CN106747192A (en) * | 2016-12-16 | 2017-05-31 | 广州市盈坚建材科技发展有限公司 | A kind of wet mixing mortar of resistance to compression moisturizing and preparation method thereof |
-
2017
- 2017-11-18 CN CN201711149342.XA patent/CN107721320B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696100A (en) * | 2009-09-25 | 2010-04-21 | 北京艺高世纪科技股份有限公司 | High-performance base mortar |
| CN102093021A (en) * | 2010-12-28 | 2011-06-15 | 济南高新区工业废弃物利用研发中心 | Slag micro-powder dry mixed mortar |
| CN105174852A (en) * | 2015-10-22 | 2015-12-23 | 福建江夏学院 | Recycled aggregate concrete and preparation method thereof |
| CN106747192A (en) * | 2016-12-16 | 2017-05-31 | 广州市盈坚建材科技发展有限公司 | A kind of wet mixing mortar of resistance to compression moisturizing and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110204277A (en) * | 2019-06-04 | 2019-09-06 | 东方雨虹民用建材有限责任公司 | A kind of anti-caking glue for tile and preparation method thereof |
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| CN107721320B (en) | 2020-04-10 |
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Effective date of registration: 20200310 Address after: 410100 Shigongwan Community, Huangxing Town, Changsha County, Changsha City, Hunan Province (No. 1 Workshop, Hunan Tongxinganshan Car Body Manufacturing Co., Ltd.) Applicant after: Changsha Sanshu New Material Technology Co., Ltd. Address before: 233000 Anhui Province, Bengbu City Industrial Park Road No. 60 Yu Yuhui District Applicant before: Anhui Province Shen Zhou building materials Science and Technology Ltd. |
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