CN114105518A - Concrete additive - Google Patents
Concrete additive Download PDFInfo
- Publication number
- CN114105518A CN114105518A CN202111579257.3A CN202111579257A CN114105518A CN 114105518 A CN114105518 A CN 114105518A CN 202111579257 A CN202111579257 A CN 202111579257A CN 114105518 A CN114105518 A CN 114105518A
- Authority
- CN
- China
- Prior art keywords
- parts
- concrete
- collapse
- water
- polyvinylpyrrolidone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000654 additive Substances 0.000 title description 2
- 230000000996 additive effect Effects 0.000 title description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 claims abstract description 14
- 239000002253 acid Substances 0.000 claims abstract description 14
- 239000001863 hydroxypropyl cellulose Substances 0.000 claims abstract description 14
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 claims abstract description 14
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 claims abstract description 14
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims abstract description 14
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims abstract description 14
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims abstract description 14
- 239000000176 sodium gluconate Substances 0.000 claims abstract description 14
- 229940005574 sodium gluconate Drugs 0.000 claims abstract description 14
- 235000012207 sodium gluconate Nutrition 0.000 claims abstract description 14
- 150000008130 triterpenoid saponins Chemical class 0.000 claims abstract description 14
- 239000012452 mother liquor Substances 0.000 claims abstract description 13
- 150000001412 amines Chemical class 0.000 claims abstract 2
- 239000003223 protective agent Substances 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 239000004568 cement Substances 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 7
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000003786 synthesis reaction Methods 0.000 abstract description 3
- 230000001988 toxicity Effects 0.000 abstract description 3
- 231100000419 toxicity Toxicity 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- 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
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
Landscapes
- 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)
Abstract
The invention discloses a concrete admixture which comprises, by weight, 45-55 parts of polycarboxylic acid mother liquor, 15-30 parts of a collapse-preventing agent, 5-15 parts of sodium gluconate, 2-8 parts of hydroxypropyl cellulose, 1-5 parts of polyvinylpyrrolidone, 0.01-0.08 part of triterpenoid saponin, 0.01-0.08 part of polyoxyethylene polyoxypropylene amine ether and the balance of water. The water reducing agent is prepared according to the proportion, so that the collapse degree loss of concrete can be reduced, the workability of the concrete is improved, the strength of the concrete is ensured, the cement consumption of concrete is indirectly reduced, and the construction cost is saved. The raw materials involved in the invention are chemicals without strong toxicity, the process flow is simple, the synthesis operation is convenient, and the comprehensive cost is low.
Description
Technical Field
The invention relates to the technical field of engineering construction, in particular to a concrete admixture.
Background
At present, the water reducing agent can improve the holding power of concrete mixture slump, namely under the condition that the slump is maintained unchanged, the mixing water consumption is reduced, and as the biggest factor determining the concrete strength is the water-cement ratio, namely the proportion of water to a cementing material, the water reducing agent is added to indirectly achieve the effect of saving cement. The water reducing agent is an indispensable concrete admixture in the current engineering construction, and has an irreplaceable effect in the application of C50 and the concrete with the above marks.
Disclosure of Invention
The invention aims to provide a concrete admixture which can effectively meet the requirement of high water reducing rate of the admixture in the concrete mixing ratio of C50 and above, has obvious effect on changing the service performance and durability of the concrete, and can reduce the production cost of the concrete and the construction cost by saving cement.
The technical scheme adopted by the invention is as follows:
the concrete admixture comprises, by weight, 45-55 parts of polycarboxylic acid mother liquor, 15-30 parts of collapse-preventing agent, 5-15 parts of sodium gluconate, 2-8 parts of hydroxypropyl cellulose, 1-5 parts of polyvinylpyrrolidone, 0.01-0.08 part of triterpenoid saponin, 0.01-0.08 part of polyoxyethylene polyoxypropylene ether and the balance of water.
The anti-sloughing agent comprises, by weight, 45 parts of polycarboxylic acid mother liquor, 15 parts of a slough-retaining agent, 5 parts of sodium gluconate, 3 parts of hydroxypropyl cellulose, 1 part of polyvinylpyrrolidone, 0.05 part of triterpenoid saponin, 0.02 part of polyoxyethylene polyoxypropylene ether and the balance of water.
The anti-collapse agent comprises, by weight, 52 parts of polycarboxylic acid mother liquor, 20 parts of a collapse protecting agent, 10 parts of sodium gluconate, 2 parts of hydroxypropyl cellulose, 2 parts of polyvinylpyrrolidone, 0.06 part of triterpenoid saponin, 0.04 part of polyoxyethylene polyoxypropylene ether and the balance of water.
The anti-collapse agent comprises, by weight, 48 parts of polycarboxylic acid mother liquor, 16 parts of a collapse protecting agent, 7 parts of sodium gluconate, 4 parts of hydroxypropyl cellulose, 2 parts of polyvinylpyrrolidone, 0.07 part of triterpenoid saponin, 0.04 part of polyoxyethylene polyoxypropylene ether and the balance of water.
The invention provides a concrete admixture with high water reducing rate, which is composed of a plurality of components, the admixture is simple to prepare, the high water reducing rate effect is ensured through reasonable blending of the components, the slump loss of concrete can be reduced, the workability of the concrete is improved, the strength of the concrete is ensured, the cement consumption of concrete is indirectly reduced, and the construction cost is saved. The raw materials involved in the invention are chemicals without strong toxicity, the process flow is simple, the synthesis operation is convenient, and the comprehensive cost is low.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The concrete admixture comprises, by weight, 45-55 parts of polycarboxylic acid mother liquor, 15-30 parts of collapse-preventing agent, 5-15 parts of sodium gluconate, 2-8 parts of hydroxypropyl cellulose, 1-5 parts of polyvinylpyrrolidone, 0.01-0.08 part of triterpenoid saponin, 0.01-0.08 part of polyoxyethylene polyoxypropylene ether and the balance of water.
The reasonable blending of the components ensures the high water reducing rate effect, reduces the collapse degree loss of the concrete, improves the workability of the concrete, ensures the strength of the concrete, indirectly reduces the cement consumption of concrete seeds and saves the construction cost.
The water reducing agent is a polycarboxylic acid high-performance water reducing agent which is produced and sold by the company, and the product types are as follows: HPWR delayed coagulation type.
The used collapse prevention agent is a concrete high-efficiency collapse prevention agent which is produced and sold by the company, and the product model is as follows: TSDT.
The sodium gluconate is from Shanxi Wang sugar industry Co Ltd, and has purity of 98.5%, and the purity grades of hydroxypropyl cellulose, polyvinylpyrrolidone, triterpenoid saponin and polyoxyethylene polyoxypropylene ether are chemical purity.
Example 1
The concrete admixture of the invention has the following formula: 45 parts of polycarboxylic acid mother liquor, 15 parts of a slump retaining agent, 5 parts of sodium gluconate, 3 parts of hydroxypropyl cellulose, 1 part of polyvinylpyrrolidone, 0.05 part of triterpenoid saponin and 0.02 part of polyoxyethylene polyoxypropylene ether.
Example 2
The concrete admixture of the invention has the following formula: 52 parts of polycarboxylic acid mother liquor, 20 parts of a slump retaining agent, 10 parts of sodium gluconate, 2 parts of hydroxypropyl cellulose, 2 parts of polyvinylpyrrolidone, 0.06 part of triterpenoid saponin and 0.04 part of polyoxyethylene polyoxypropylene ether.
Example 3
The concrete admixture of the invention has the following formula: 48 parts of polycarboxylic acid mother liquor, 16 parts of a slump retaining agent, 7 parts of sodium gluconate, 4 parts of hydroxypropyl cellulose, 2 parts of polyvinylpyrrolidone, 0.07 part of triterpenoid saponin and 0.04 part of polyoxyethylene polyoxypropylene ether.
The preparation method of the concrete admixture described in the above 3 examples: mixing the raw materials according to the proportion (weight ratio) at room temperature, adding water to 100 parts, and stirring for 10-15 minutes. The above description is only a preferred embodiment of the present invention, and modifications such as fine adjustment or decoration made without departing from the principle of the present invention should also be considered as falling within the protection scope of the present invention.
Performance test experiments:
description of experimental control: in the experiment, the designed strength of the concrete is C50, and the used concrete proportioning materials are the same manufacturers; the operators and the instruments and equipment in the experiment comparison process are the same; the water reducing rate is detected according to GB8076-2008 concrete admixture.
The results are as follows:
the experiments show that the slump and the expansion of the water reducing agent are improved by more than 30% compared with the self effect of the existing water reducing agent under the same condition, the slump loss of concrete can be reduced, the workability of the concrete is improved, the strength of the concrete is ensured, the cement consumption of concrete is indirectly reduced, and the construction cost is saved. The raw materials involved in the invention are chemicals without strong toxicity, the process flow is simple, the synthesis operation is convenient, and the comprehensive cost is low.
In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and the positional relationship are based on the orientation or the positional relationship shown, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be construed as limiting the specific scope of the present invention.
It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the application of the principles of the technology. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the specific embodiments described herein, and may include more effective embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (4)
1. A concrete admixture is characterized in that: the anti-sloughing agent comprises, by weight, 45-55 parts of polycarboxylic acid mother liquor, 15-30 parts of a sloughing agent, 5-15 parts of sodium gluconate, 2-8 parts of hydroxypropyl cellulose, 1-5 parts of polyvinylpyrrolidone, 0.01-0.08 part of triterpenoid saponin, 0.01-0.08 part of polyoxyethylene polyoxypropylene amine ether and the balance of water.
2. The concrete admixture according to claim 1, wherein: the anti-collapse agent comprises, by weight, 45 parts of polycarboxylic acid mother liquor, 15 parts of a collapse protecting agent, 5 parts of sodium gluconate, 3 parts of hydroxypropyl cellulose, 1 part of polyvinylpyrrolidone, 0.05 part of triterpenoid saponin, 0.02 part of polyoxyethylene polyoxypropylene ether and the balance of water.
3. The concrete admixture according to claim 1, wherein: the anti-collapse agent comprises, by weight, 52 parts of polycarboxylic acid mother liquor, 20 parts of a collapse protecting agent, 10 parts of sodium gluconate, 2 parts of hydroxypropyl cellulose, 2 parts of polyvinylpyrrolidone, 0.06 part of triterpenoid saponin, 0.04 part of polyoxyethylene polyoxypropylene ether and the balance of water.
4. The concrete admixture according to claim 1, wherein: the anti-collapse agent comprises, by weight, 48 parts of polycarboxylic acid mother liquor, 16 parts of a collapse protecting agent, 7 parts of sodium gluconate, 4 parts of hydroxypropyl cellulose, 2 parts of polyvinylpyrrolidone, 0.07 part of triterpenoid saponin, 0.04 part of polyoxyethylene polyoxypropylene ether and the balance of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111579257.3A CN114105518A (en) | 2021-12-22 | 2021-12-22 | Concrete additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111579257.3A CN114105518A (en) | 2021-12-22 | 2021-12-22 | Concrete additive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114105518A true CN114105518A (en) | 2022-03-01 |
Family
ID=80362713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111579257.3A Pending CN114105518A (en) | 2021-12-22 | 2021-12-22 | Concrete additive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114105518A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN115057655A (en) * | 2022-07-18 | 2022-09-16 | 中铁一局集团(广州)建设工程有限公司 | Slurry additive for cement mixing pile in soft soil area |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008127430A (en) * | 2006-11-17 | 2008-06-05 | Nippon Shokubai Co Ltd | Manufacturing method for polycarboxylic acid-based concrete admixture |
| JP2009155184A (en) * | 2007-12-27 | 2009-07-16 | Taiheiyo Materials Corp | High fluidity ultrahigh early-strength admixture and high fluidity ultrahigh early-strength concrete |
| KR101406926B1 (en) * | 2013-11-29 | 2014-06-27 | (주) 금영 | Cement Concreat admixture and Cement Concreat composition |
| CN104045266A (en) * | 2014-07-08 | 2014-09-17 | 日照弗尔曼新材料科技有限公司 | Concrete admixture |
| CN104119026A (en) * | 2014-06-25 | 2014-10-29 | 芜湖市三兴混凝土外加剂有限公司 | Concrete composite water reducing agent |
| CN106186796A (en) * | 2016-07-17 | 2016-12-07 | 临汾市华基新型建材有限公司 | Concrete admixture |
| CN107500678A (en) * | 2017-09-30 | 2017-12-22 | 广西路桥工程集团有限公司 | A kind of self-compacting concrete |
| CN108911567A (en) * | 2018-07-24 | 2018-11-30 | 成都建工预筑科技有限公司 | High-strength concrete special additive and preparation method thereof |
-
2021
- 2021-12-22 CN CN202111579257.3A patent/CN114105518A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008127430A (en) * | 2006-11-17 | 2008-06-05 | Nippon Shokubai Co Ltd | Manufacturing method for polycarboxylic acid-based concrete admixture |
| JP2009155184A (en) * | 2007-12-27 | 2009-07-16 | Taiheiyo Materials Corp | High fluidity ultrahigh early-strength admixture and high fluidity ultrahigh early-strength concrete |
| KR101406926B1 (en) * | 2013-11-29 | 2014-06-27 | (주) 금영 | Cement Concreat admixture and Cement Concreat composition |
| CN104119026A (en) * | 2014-06-25 | 2014-10-29 | 芜湖市三兴混凝土外加剂有限公司 | Concrete composite water reducing agent |
| CN104045266A (en) * | 2014-07-08 | 2014-09-17 | 日照弗尔曼新材料科技有限公司 | Concrete admixture |
| CN106186796A (en) * | 2016-07-17 | 2016-12-07 | 临汾市华基新型建材有限公司 | Concrete admixture |
| CN107500678A (en) * | 2017-09-30 | 2017-12-22 | 广西路桥工程集团有限公司 | A kind of self-compacting concrete |
| CN108911567A (en) * | 2018-07-24 | 2018-11-30 | 成都建工预筑科技有限公司 | High-strength concrete special additive and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN115057655A (en) * | 2022-07-18 | 2022-09-16 | 中铁一局集团(广州)建设工程有限公司 | Slurry additive for cement mixing pile in soft soil area |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114105518A (en) | Concrete additive | |
| AU2014321458B2 (en) | Cement grinding additive for enabling PVC equipment use | |
| CA2810673C (en) | Dilution-stable cement grinding additive composition | |
| SK9772002A3 (en) | Preparation of concrete accelerator | |
| CN105347726A (en) | Anticorrosive composite polycarboxylate superplasticizer with high slump loss resistance, and preparation method and application thereof | |
| CN112358246B (en) | High-elevation pumping high-performance desert sand concrete and preparation method thereof | |
| JPH0517186B2 (en) | ||
| US20040255825A1 (en) | Accelerator composition | |
| CN111978004A (en) | Polycarboxylic acid type efficient pumping agent and application thereof | |
| CN111875285A (en) | Concrete mortar anti-cracking additive and preparation method thereof | |
| USH493H (en) | Alkylsulfonated polysaccharides and mortar and concrete mixes containing them | |
| CN110563376A (en) | concrete reinforcing agent suitable for being prepared from machine-made sand and preparation method of mother liquor of concrete reinforcing agent | |
| CN105837762A (en) | Polycarboxylate superplasticizer synthesized at normal temperature and preparation method thereof | |
| JP2007297242A (en) | Fluidity control agent for mortar or concrete | |
| CN110591030A (en) | Concrete water reducing agent and preparation method thereof | |
| CN111606597A (en) | Polycarboxylic acid series concrete water reducing agent and production method thereof | |
| CN105384385A (en) | High-efficiency slow-setting concrete water reducer and preparation method thereof | |
| CN111253106A (en) | Self-made grinding aid | |
| CN109879626B (en) | Concrete air entraining agent and preparation method and application thereof | |
| CN107512864B (en) | Low-sensitivity foam concrete foaming agent and preparation method thereof | |
| JPH042641A (en) | Admixture for concrete | |
| JPS61270247A (en) | Manufacture of fluidized concrete | |
| CN110540620A (en) | polycarboxylate superplasticizer and preparation method thereof | |
| KR20010038998A (en) | Method of producing segregation-reducing type superplasticizer for concrete | |
| CN107814506A (en) | A kind of high efficiency water reducing agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220301 |