CN110357487A - A kind of Machine-made Sand regulator and its containing the purposes in machine-made sand concrete - Google Patents
A kind of Machine-made Sand regulator and its containing the purposes in machine-made sand concrete Download PDFInfo
- Publication number
- CN110357487A CN110357487A CN201910727989.9A CN201910727989A CN110357487A CN 110357487 A CN110357487 A CN 110357487A CN 201910727989 A CN201910727989 A CN 201910727989A CN 110357487 A CN110357487 A CN 110357487A
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- machine
- made sand
- concrete
- reaction kettle
- raw material
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Classifications
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The invention discloses a kind of Machine-made Sand regulator and its containing the purposes in machine-made sand concrete, Machine-made Sand regulator, it with air entraining agent 1-3%, calgon 5-10%, surplus is water that raw material according to parts by weight, which includes: diethanol monoisopropanolamine 10-15%, maltodextrin 2-5%, di-n-propylamine 5-10%, Clariant polyethers concrete, maltodextrin is to make raw material with each kind of starch, hydrolysis is controlled through enzyme method technique low degree, purification, drying forms, it hydrolyzes DE value 20% hereinafter, di-n-propylamine molecular formula C6H15N or (CH3CH2CH2) 2NH；Molecular weight 101.19；Colourless liquid has the smell of ammonia；It is miscible in ethyl alcohol, ether, benzene, acetone；Flammable liquid；Main application: organic synthesis intermediate, and make solvent.Machine-made Sand regulator of the present invention, simple process, easy to operate, production process no waste mine, it is environmentally friendly reliable, it is conducive to large-scale industrial production, when use, it can effectively improve concrete strength, reduce cement amount, and it is wrapped and increase concrete flowability to be adjustable concrete.
Description
Technical field
The present invention relates to Machine-made Sand regulator preparation technical field, specifically a kind of Machine-made Sand regulator and its contain mechanism
Purposes in sand concrete.
Background technique
Machine-made Sand refers to the sand being process by sand making machine and other auxiliary devices, and finished product is more regular, Ke Yigen
The sand for being processed into Different Rule and size is required according to different process, is more able to satisfy daily demand.Machine-made Sand will have setting for profession
It is standby just to produce qualified applicable sandstone.Basic procedure, first building stones be tentatively crushed by boulder crusher, and then, what is produced is thick
Material is delivered to fine crusher by rubber conveyer and is further crushed, it is fine crushing after building stones separate two kinds of stones into Vibration Screen,
Meet the stone system sand Machine-made Sand of sand making machine feed size, another part returning charge is into thin slope.Into stone a part of sand making machine
Sand is made, finished sand is made after (optional) cleaning of sand washer, another part is crushed again into sand making machine, and Machine-made Sand production line is certainly
Dynamicization degree is high, and operating cost is low, and percentage of damage is high, and energy conservation, yield is big, and pollution is few, and maintenance is easy, what sand production line processed was produced
Machine-made Sand meets national building sand standard, and epigranular, particle shape are good, and gradation is reasonable.
Machine-made sand concrete is applied to almost all of modern architecture as presently the most important one of construction material
In.Wherein, cement used in machine-made sand concrete is various informative, and slag cements is as one such.Due to this mechanism
Sand concrete takes full advantage of slag and steel slag, has accomplished to turn waste into wealth, to be once widely popularized.
Traditional Machine-made Sand regulator, the effect used is poor, the Machine-made Sand coagulation prepared by Machine-made Sand regulator
Soil has that intensity is low, mobility is inserted and poor disadvantage wrapped, so can not meet the demand of user.
Summary of the invention
The purpose of the present invention is to provide a kind of environment friendly and pollution-free, low-cost new type compound concrete air-entrainers
Preparation method and preparation method thereof, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of Machine-made Sand regulator, the raw material according to parts by weight include: diethanol monoisopropanolamine 10-15%, maltose
Dextrin 2-5%, di-n-propylamine 5-10%, Clariant polyethers concrete air entraining agent 1-3%, calgon 5-10%, surplus
For water.
As a further solution of the present invention:
The Machine-made Sand regulator, the raw material according to parts by weight include: diethanol monoisopropanolamine 11-15%, maltose
Dextrin 3-5%, di-n-propylamine 6-10%, Clariant polyethers concrete air entraining agent 2-3%, calgon 6-10%, surplus
For water.
As a further solution of the present invention:
The Machine-made Sand regulator, the raw material according to parts by weight include: diethanol monoisopropanolamine 12.5%, malt magma
Essence 3.5%, di-n-propylamine 7.5%, Clariant polyethers concrete air entraining agent 2%, calgon 7.5%, surplus are water.
As a further solution of the present invention:
The maltodextrin is to make raw material with each kind of starch, controls hydrolysis through enzyme method technique low degree, purifies, does
It is dry to form, DE value is hydrolyzed below 20%
As a further solution of the present invention:
The diethanol monoisopropanolamine is environmentally protective novel grinding aid raw material, has fabulous grinding-aid effect.
As a further solution of the present invention:
The di-n-propylamine molecular formula C6H15N or (CH3CH2CH2) 2NH；Molecular weight 101.19；Colourless liquid has the gas of ammonia
Taste；It is miscible in ethyl alcohol, ether, benzene, acetone；Flammable liquid；Main application: organic synthesis intermediate, and make solvent.
As a further solution of the present invention
The preparation method of the Machine-made Sand regulator, the specific steps are as follows:
(1) each raw material is weighed according to parts by weight；
(2) it adds water in reaction kettle；
(3) diethanol monoisopropanolamine, maltodextrin, di-n-propylamine, Clariant polyethers coagulation are added into reaction kettle
Native air entraining agent and calgon；
(4) after mechanical stirring is uniform, there is not lamination to get this product is arrived.
As further scheme of the invention:
Reaction kettle used in the step (2) is chemical reaction kettle, be provided in the chemical reaction kettle stirring structure and
Resistive heater, and thermometer is provided on the appearance wall of chemical reaction kettle.
As further scheme of the invention:
The Machine-made Sand regulator is used to configure the purposes of the machine-made sand concrete of varying strength and mobility.
Compared with prior art, the beneficial effects of the present invention are:
Machine-made Sand regulator of the present invention, simple process, easy to operate, production process no waste mine, environmental protection is reliable, is conducive to big rule
Mould industrialized production reduces cement amount in use, concrete strength can be improved effectively, and is adjustable concrete package
Property and increase concrete flowability.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
Embodiment 1
A kind of Machine-made Sand regulator, the raw material according to parts by weight include: diethanol monoisopropanolamine 12.5%, malt magma
Essence 3.5%, di-n-propylamine 7.5%, Clariant polyethers concrete air entraining agent 2%, calgon 7.5%, surplus are water.
The preparation method of the preparation method of the Machine-made Sand regulator, the specific steps are as follows:
(1) each raw material is weighed according to parts by weight；
(2) it adds water in reaction kettle；
(3) diethanol monoisopropanolamine, maltodextrin, di-n-propylamine, Clariant polyethers coagulation are added into reaction kettle
Native air entraining agent and calgon；
(4) after mechanical stirring is uniform, there is not lamination to get this product is arrived, reaction kettle used in step (2) is
Chemical reaction kettle is provided with stirring structure and resistive heater in the chemical reaction kettle, and sets on the appearance wall of chemical reaction kettle
It is equipped with thermometer.
Embodiment 2
A kind of Machine-made Sand regulator, the raw material according to parts by weight include: diethanol monoisopropanolamine 10%, maltodextrin
2%, di-n-propylamine 5%, Clariant polyethers concrete air entraining agent 1%, calgon 5%, surplus are water.
The preparation method of the preparation method of the Machine-made Sand regulator, the specific steps are as follows:
(1) each raw material is weighed according to parts by weight；
(2) it adds water in reaction kettle；
(3) diethanol monoisopropanolamine, maltodextrin, di-n-propylamine, Clariant polyethers coagulation are added into reaction kettle
Native air entraining agent and calgon；
(4) after mechanical stirring is uniform, there is not lamination to get this product is arrived, reaction kettle used in step (2) is
Chemical reaction kettle is provided with stirring structure and resistive heater in the chemical reaction kettle, and sets on the appearance wall of chemical reaction kettle
It is equipped with thermometer.
Embodiment 3
A kind of Machine-made Sand regulator, the raw material according to parts by weight include: diethanol monoisopropanolamine 11%, maltodextrin
2.5%, di-n-propylamine 6%, Clariant polyethers concrete air entraining agent 1.5%, calgon 6%, surplus are water.
The preparation method of the preparation method of the Machine-made Sand regulator, the specific steps are as follows:
(1) each raw material is weighed according to parts by weight；
(2) it adds water in reaction kettle；
(3) diethanol monoisopropanolamine, maltodextrin, di-n-propylamine, Clariant polyethers coagulation are added into reaction kettle
Native air entraining agent and calgon；
(4) after mechanical stirring is uniform, there is not lamination to get this product is arrived, reaction kettle used in step (2) is
Chemical reaction kettle is provided with stirring structure and resistive heater in the chemical reaction kettle, and sets on the appearance wall of chemical reaction kettle
It is equipped with thermometer.
Embodiment 4
A kind of Machine-made Sand regulator, the raw material according to parts by weight include: diethanol monoisopropanolamine 12%, maltodextrin
3%, di-n-propylamine 7%, Clariant polyethers concrete air entraining agent 2%, calgon 7%, surplus are water.
The preparation method of the preparation method of the Machine-made Sand regulator, the specific steps are as follows:
(1) each raw material is weighed according to parts by weight；
(2) it adds water in reaction kettle；
(3) diethanol monoisopropanolamine, maltodextrin, di-n-propylamine, Clariant polyethers coagulation are added into reaction kettle
Native air entraining agent and calgon；
(4) after mechanical stirring is uniform, there is not lamination to get this product is arrived, reaction kettle used in step (2) is
Chemical reaction kettle is provided with stirring structure and resistive heater in the chemical reaction kettle, and sets on the appearance wall of chemical reaction kettle
It is equipped with thermometer.
Embodiment 5
A kind of Machine-made Sand regulator, the raw material according to parts by weight include: diethanol monoisopropanolamine 15%, maltodextrin
5%, di-n-propylamine 10%, Clariant polyethers concrete air entraining agent 3%, calgon 10%, surplus are water.
The preparation method of the preparation method of the Machine-made Sand regulator, the specific steps are as follows:
(1) each raw material is weighed according to parts by weight；
(2) it adds water in reaction kettle；
(3) diethanol monoisopropanolamine, maltodextrin, di-n-propylamine, Clariant polyethers coagulation are added into reaction kettle
Native air entraining agent and calgon；
(4) after mechanical stirring is uniform, there is not lamination to get this product is arrived, reaction kettle used in step (2) is
Chemical reaction kettle is provided with stirring structure and resistive heater in the chemical reaction kettle, and sets on the appearance wall of chemical reaction kettle
It is equipped with thermometer.
The maltodextrin is to make raw material with each kind of starch, controls hydrolysis through enzyme method technique low degree, purifies, does
It is dry to form, DE value is hydrolyzed 20% hereinafter, the diethanol monoisopropanolamine is environmentally protective novel grinding aid raw material, is had
There are fabulous grinding-aid effect, the di-n-propylamine molecular formula C6H15N or (CH3CH2CH2) 2NH；Molecular weight 101.19；Colourless liquid
Body has the smell of ammonia；It is miscible in ethyl alcohol, ether, benzene, acetone；Flammable liquid；Main application: organic synthesis intermediate, and make
Solvent, reaction kettle used in the step (2) are chemical reaction kettle, are provided with stirring structure and heating in the chemical reaction kettle
Resistance wire, and thermometer is provided on the appearance wall of chemical reaction kettle, the Machine-made Sand regulator for configure varying strength and
The purposes of the machine-made sand concrete of mobility.
Machine-made Sand regulator of the present invention, simple process, easy to operate, production process no waste mine, environmental protection is reliable, is conducive to big rule
Mould industrialized production reduces cement amount in use, concrete strength can be improved effectively, and is adjustable concrete package
Property and increase concrete flowability.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
Various changes can be made.
Claims (9)
1. a kind of Machine-made Sand regulator, which is characterized in that the raw material according to parts by weight includes: diethanol monoisopropanolamine 10-
15%, maltodextrin 2-5%, di-n-propylamine 5-10%, Clariant polyethers concrete air entraining agent 1-3%, calgon
5-10%, surplus are water.
2. Machine-made Sand regulator according to claim 1, which is characterized in that the raw material according to parts by weight includes: diethanol
Monoisopropanolamine 11-15%, maltodextrin 3-5%, di-n-propylamine 6-10%, Clariant polyethers concrete air entraining agent 2-
3%, calgon 6-10%, surplus are water.
3. Machine-made Sand regulator according to claim 1, which is characterized in that the raw material according to parts by weight includes: diethanol
Monoisopropanolamine 12.5%, maltodextrin 3.5%, di-n-propylamine 7.5%, Clariant polyethers concrete air entraining agent 2%, six
Sodium metaphosphate 7.5%, surplus are water.
4. Machine-made Sand regulator according to claim 1 to 3, which is characterized in that the maltodextrin is with all kinds of
Starch makees raw material, controls hydrolysis, purification through enzyme method technique low degree, and drying forms, and hydrolyzes DE value below 20%.
5. Machine-made Sand regulator according to claim 1 to 3, which is characterized in that the diethanol monoisopropanolamine is
Environmentally protective novel grinding aid raw material has fabulous grinding-aid effect.
6. Machine-made Sand regulator according to claim 1 to 3, which is characterized in that the di-n-propylamine molecular formula C6H15N
Or (CH3CH2CH2) 2NH；Molecular weight 101.19；Colourless liquid has the smell of ammonia；It is miscible in ethyl alcohol, ether, benzene, acetone；
Flammable liquid；Main application: organic synthesis intermediate, and make solvent.
7. a kind of preparation method of Machine-made Sand regulator a method according to any one of claims 1-3, which is characterized in that specific steps are such as
Under:
(1) each raw material is weighed according to parts by weight；
(2) it adds water in reaction kettle；
(3) diethanol monoisopropanolamine, maltodextrin, di-n-propylamine, Clariant polyethers concrete are added into reaction kettle to use
Air entraining agent and calgon；
(4) after mechanical stirring is uniform, there is not lamination to get this product is arrived.
8. the preparation method of the preparation method of new type compound concrete air-entrainer according to claim 6, feature exist
In reaction kettle used in the step (2) is chemical reaction kettle, and stirring structure and heating electricity are provided in the chemical reaction kettle
Silk is hindered, and is provided with thermometer on the appearance wall of chemical reaction kettle.
9. Machine-made Sand regulator described in -7 according to claim 1, which is characterized in that the Machine-made Sand regulator is for configuring not
With the purposes of the machine-made sand concrete of intensity and mobility.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910727989.9A CN110357487A (en) | 2019-08-08 | 2019-08-08 | A kind of Machine-made Sand regulator and its containing the purposes in machine-made sand concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910727989.9A CN110357487A (en) | 2019-08-08 | 2019-08-08 | A kind of Machine-made Sand regulator and its containing the purposes in machine-made sand concrete |
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| CN110357487A true CN110357487A (en) | 2019-10-22 |
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| CN201910727989.9A Pending CN110357487A (en) | 2019-08-08 | 2019-08-08 | A kind of Machine-made Sand regulator and its containing the purposes in machine-made sand concrete |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111847967A (en) * | 2020-05-30 | 2020-10-30 | 广州砼奇杰建材科技有限公司 | Machine-made sand regulator for concrete, concrete and preparation method thereof |
| CN112794675A (en) * | 2021-01-13 | 2021-05-14 | 杭州申华混凝土有限公司 | Machine-made sand regulator and using method thereof |
| CN113045240A (en) * | 2021-02-25 | 2021-06-29 | 广西宝添环保材料有限公司 | Machine-made sand concrete regulator and preparation method thereof |
| CN114230230A (en) * | 2021-12-23 | 2022-03-25 | 广州基业长青新材料有限公司 | Machine-made sand regulator and preparation method and application thereof |
| CN114835450A (en) * | 2022-04-29 | 2022-08-02 | 中铁六局集团有限公司 | High-performance exposed concrete for highway pavement and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556770A (en) * | 2013-10-23 | 2015-04-29 | 辽宁奥克化学股份有限公司 | Concrete admixture and application thereof in concrete containing machine-made sand |
| CN105859218A (en) * | 2016-04-14 | 2016-08-17 | 广西横县恒丰建材有限责任公司 | Premixed mechanized spraying mortar and production method thereof |
| CN105948545A (en) * | 2016-05-26 | 2016-09-21 | 甘肃德龙生态建材有限公司 | Production technology of ecological concrete |
| CN106316241A (en) * | 2016-08-03 | 2017-01-11 | 中交三公局（北京）工程试验检测有限公司 | Self-compacting micro-expansion concrete and preparation method thereof |
| EP3333138A1 (en) * | 2016-12-06 | 2018-06-13 | Sika Technology AG | Liquid additive for readying cement screed for laying quickly |
-
2019
- 2019-08-08 CN CN201910727989.9A patent/CN110357487A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556770A (en) * | 2013-10-23 | 2015-04-29 | 辽宁奥克化学股份有限公司 | Concrete admixture and application thereof in concrete containing machine-made sand |
| CN105859218A (en) * | 2016-04-14 | 2016-08-17 | 广西横县恒丰建材有限责任公司 | Premixed mechanized spraying mortar and production method thereof |
| CN105948545A (en) * | 2016-05-26 | 2016-09-21 | 甘肃德龙生态建材有限公司 | Production technology of ecological concrete |
| CN106316241A (en) * | 2016-08-03 | 2017-01-11 | 中交三公局（北京）工程试验检测有限公司 | Self-compacting micro-expansion concrete and preparation method thereof |
| EP3333138A1 (en) * | 2016-12-06 | 2018-06-13 | Sika Technology AG | Liquid additive for readying cement screed for laying quickly |
Non-Patent Citations (2)
| Title |
|---|
| 俞宾辉: "《建筑混凝土工程施工手册》", 30 September 2004, 山东科学技术出版社 * |
| 四川省交通运输厅公路规划勘察设计研究院主编: "《机制砂桥梁高性能混凝土技术教程》", 31 October 2015, 西南交通大学出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111847967A (en) * | 2020-05-30 | 2020-10-30 | 广州砼奇杰建材科技有限公司 | Machine-made sand regulator for concrete, concrete and preparation method thereof |
| CN111847967B (en) * | 2020-05-30 | 2022-06-21 | 广州砼奇杰建材科技有限公司 | Machine-made sand regulator for concrete, concrete and preparation method thereof |
| CN112794675A (en) * | 2021-01-13 | 2021-05-14 | 杭州申华混凝土有限公司 | Machine-made sand regulator and using method thereof |
| CN113045240A (en) * | 2021-02-25 | 2021-06-29 | 广西宝添环保材料有限公司 | Machine-made sand concrete regulator and preparation method thereof |
| CN114230230A (en) * | 2021-12-23 | 2022-03-25 | 广州基业长青新材料有限公司 | Machine-made sand regulator and preparation method and application thereof |
| CN114230230B (en) * | 2021-12-23 | 2022-08-02 | 广州基业长青新材料有限公司 | Machine-made sand regulator and preparation method and application thereof |
| CN114835450A (en) * | 2022-04-29 | 2022-08-02 | 中铁六局集团有限公司 | High-performance exposed concrete for highway pavement and construction method thereof |
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Application publication date: 20191022 |