CN115286283A - Dry powder mortar additive containing industrial protein powder and dry powder mortar - Google Patents
Dry powder mortar additive containing industrial protein powder and dry powder mortar Download PDFInfo
- Publication number
- CN115286283A CN115286283A CN202210986420.6A CN202210986420A CN115286283A CN 115286283 A CN115286283 A CN 115286283A CN 202210986420 A CN202210986420 A CN 202210986420A CN 115286283 A CN115286283 A CN 115286283A
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- CN
- China
- Prior art keywords
- dry
- mortar
- powder
- industrial protein
- dry powder
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- 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.)
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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
- C04B40/0042—Powdery mixtures
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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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/12—Nitrogen containing compounds organic derivatives of hydrazine
- C04B24/14—Peptides; Proteins; Derivatives thereof
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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
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a dry powder mortar additive containing industrial protein powder and dry powder mortar, belonging to the technical field of dry powder mortar additives. The dry powder mortar admixture comprises 5-10% of air entraining agent, 0-3% of thixotropic agent, 2-6% of thickening agent, 6-14% of water-retaining agent, 10-20% of modified industrial protein powder, 5-16% of retarder and the balance filler. According to the invention, the modified industrial protein powder is introduced into the common dry-mixed mortar admixture, and is mixed with a small amount of water-retaining agent according to a certain proportion to prepare the dry-mixed mortar admixture, so that the requirement of the dry-mixed mortar on water retention can be met, the addition of the air-entraining agent in the dry-mixed mortar admixture can be reduced, the production cost can be reduced, the state of the dry-mixed mortar can be improved, and the wrapping property and softness of the dry-mixed mortar can be improved.
Description
Technical Field
The invention belongs to the technical field of dry powder mortar additives, and particularly relates to a dry powder mortar additive containing industrial protein powder and dry powder mortar.
Background
Existing dry mortar admixtures generally comprise: air entraining agent, thixotropic agent, tackifier, water-retaining agent, retarder and filler. The addition amount of the premixed dry powder mortar is 0.5 thousandth of the total mass of the mortar when the premixed dry powder mortar is produced. The air entraining agent is one or a mixture of AOS and K12, and accounts for about 10% of the dry powder mortar admixture by mass; the thixotropic agent is one of starch ether and modified magnesium aluminum silicate compound, and accounts for about 2% of the dry powder mortar additive by mass; the thickening agent is polyvinyl alcohol and accounts for about 5 percent of the mass ratio of the dry powder mortar additive; the water retention agent is 20W cellulose ether with viscosity, and accounts for about 20 percent of the mass ratio of the dry powder mortar admixture; the retarder is one of sodium gluconate, sodium tripolyphosphate and sodium citrate, and accounts for 12% of the mass of the dry powder mortar additive; the rest is filler, and the filler is one of coarse whiting powder and fly ash. The dry powder mortar admixture is produced by proportioning according to the weight proportion, the materials are put into a stirrer according to the principle of firstly lightening and then weighting, the materials are stirred for about 30MIN and then are uniformly stirred and then discharged.
However, the dry premixed mortar prepared by the existing production method of the dry mortar admixture has the defects of high cost, low mortar water retention rate and difficulty in reaching national standards in some regions, and the main reasons for the problems are that machine-made sand is used in production of the premixed dry mortar, and some weathered mountain sand or washed sand is used in shortage of the machine-made sand in some dry mortar stations, so that the gradation of sand is unreasonable, and meanwhile, the problems that the water retention rate of the produced premixed dry mortar is low and the mortar state is poor due to ammonia smell contained in the sand or excessively high MB value and the like are caused.
Disclosure of Invention
In view of this, the invention provides the dry powder mortar admixture containing the industrial protein powder and the dry powder mortar, and the dry powder mortar admixture containing the industrial protein powder provided by the invention not only can meet the requirement of the dry powder mortar on water retention, but also can reduce the addition amount of the air-entraining agent in the dry powder mortar admixture, reduce the production cost and improve the state of the dry powder mortar.
The invention aims to provide a dry powder mortar admixture containing industrial protein powder, which comprises, by mass, 5-10% of an air-entraining agent, 0-3% of a thixotropic agent, 2-6% of a thickening agent, 6-14% of a water-retaining agent, 10-20% of modified industrial protein powder, 5-16% of a retarder and the balance of a filler.
The modified industrial protein powder has a certain foaming effect and can provide viscosity, so that the viscosity of the dry powder mortar is increased while the foaming and foam stabilizing effects are achieved in the dry powder mortar, and the water retention capacity of the mortar is improved.
Preferably, the air entraining agent is at least one of an AOS air entraining agent, a K12 air entraining agent and a lignosulfonate air entraining agent.
Preferably, the thixotropic agent is at least one of starch ether and modified magnesium aluminum silicate compound.
Preferably, the thickener is at least one of polyvinyl alcohol, sodium polyacrylate and pregelatinized starch.
Preferably, the water-retaining agent is at least one of hydroxypropyl methylcellulose and guar gum.
Preferably, the modified industrial protein powder is white or light yellow powder obtained by using animal bones or leather as a raw material, hydrolyzing the raw material by acid and alkali, and then adopting a high-temperature powder spraying and drying process different from the traditional extrusion granulation and drying process.
Preferably, the retarder is at least one of sodium gluconate, sodium tripolyphosphate and sodium citrate.
Preferably, the filler is at least one of heavy calcium powder and fly ash, and the particle size of the filler is 80-200 meshes.
The second purpose of the invention is to provide dry-mixed mortar, which comprises the dry-mixed mortar additive, wherein the amount of the dry-mixed mortar additive is 0.5-1.2 per mill based on the total weight of the base material of the dry-mixed mortar.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the modified industrial protein powder is introduced into the common dry-mixed mortar admixture and is mixed with a small amount of water-retaining agent according to a certain proportion to prepare the dry-mixed mortar admixture, so that the requirement of the dry-mixed mortar on water retention can be met, the addition amount of an air-entraining agent in the dry-mixed mortar admixture can be reduced, the production cost can be reduced, the state of the dry-mixed mortar can be improved, and the wrapping property and softness of the dry-mixed mortar can be improved. The water retention performance of the premixed dry-mixed mortar produced by the dry-mixed mortar additive can meet the national standard requirement, and the requirement can be met by increasing the mixing amount of the additive when higher water retention rate is required. The dry powder mortar admixture containing the industrial protein powder has lower requirements on used sand materials and has positive influence on dry powder mortar stations which are difficult to purchase machine-made sand with reasonable gradation.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to be exhaustive or exhaustive. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The test methods or test methods described in the following examples are conventional methods unless otherwise specified; the starting materials and auxiliaries are, unless otherwise specified, obtained from customary commercial sources or prepared in customary manner.
The modified industrial protein powder added in the invention is industrial collagen powder produced by Shijiazhuang Xuermei Biotechnology Limited, and the product is white or light yellow powder and the content of the protein is controlled to be more than 90%.
The rest raw materials are all commercial products.
The particle size of the filler used in examples 1 to 3 and comparative example 1 below was 80 to 200 mesh.
The inventor researches the influence of adding modified industrial protein powder into the dry mortar additive on the performance of the dry mortar. The formula of the additive provided by the invention is as follows:
| components | Example 1 | Example 2 | Example 3 | Comparative example 1 |
| AOS | 9 | 9 | 9 | 10 |
| Starch ethers | 1 | 1 | 1 | 1 |
| Polyvinyl alcohol | 4 | 4 | 4 | 4 |
| HPMC | 10 | 10 | 14 | 14 |
| Modified industrial protein powder | 10 | 16 | 16 | 0 |
| Sodium gluconate | 10 | 10 | 10 | 10 |
| Heavy calcium powder | 56 | 50 | 46 | 61 |
The dry powder mortar admixtures provided in examples 1-3 and comparative example 1 were mixed with the other components of the dry powder mortar, respectively, cement p.042.5:110KG, machine-made sand (fineness modulus 2.61): 1428KG, fine sand (fineness modulus 0.8): 352KG, and dry powder mortar admixture 1KG (the total mass of the dry powder mortar is zero five per thousand).
The properties of the corresponding dry-mixed mortar are as follows:
| amount of water used | Volume weight | Consistency of | Water retention rate | After 2H consistency | 7D intensity | |
| Example 1 | 320 | 1774 | 92 | 89.15％ | 78 | 5.74MPA |
| Example 2 | 310 | 1772 | 90 | 89.70％ | 75 | 5.81MPA |
| Example 3 | 310 | 1780 | 95 | 92.3％ | 80 | 5.60MPA |
| Comparative example 1 | 327 | 1777 | 96 | 87.06％ | 61 | 5.91MPA |
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The dry powder mortar admixture containing industrial protein powder is characterized by comprising, by mass, 5-10% of an air-entraining agent, 0-3% of a thixotropic agent, 2-6% of a thickening agent, 6-14% of a water-retaining agent, 10-20% of modified industrial protein powder, 5-16% of a retarder and the balance of a filler.
2. The dry powder mortar admixture containing industrial protein powder of claim 1, wherein the air-entraining agent is at least one of AOS air-entraining agent, K12 air-entraining agent, lignosulfonate air-entraining agent.
3. The dry powder mortar admixture containing industrial protein powder of claim 1, wherein the thixotropic agent is at least one of starch ether and modified magnesium aluminum silicate compound.
4. The dry powder mortar admixture containing industrial protein powder as claimed in claim 1, wherein the thickener is at least one of polyvinyl alcohol, sodium polyacrylate and pregelatinized starch.
5. The dry powder mortar admixture containing industrial protein powder according to claim 1, wherein the water retention agent is at least one of hydroxypropyl methylcellulose and guar gum.
6. The dry powder mortar admixture containing industrial protein powder of claim 1, wherein the modified industrial protein powder is white or light yellow powder obtained by using animal bones or leather as raw materials, hydrolyzing with acid and alkali, and drying by high temperature powder spraying.
7. The dry powder mortar admixture containing industrial protein powder according to claim 1, wherein the retarder is at least one of sodium gluconate, sodium tripolyphosphate and sodium citrate.
8. The dry powder mortar admixture containing industrial protein powder according to claim 1, wherein the filler is at least one of heavy calcium powder and fly ash, and the particle size of the filler is 80-200 meshes.
9. A dry mortar comprising the dry mortar admixture according to any one of claims 1 to 8 in an amount of 0.5 to 1.2% by weight based on the total weight of the base material of the dry mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210986420.6A CN115286283A (en) | 2022-08-17 | 2022-08-17 | Dry powder mortar additive containing industrial protein powder and dry powder mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210986420.6A CN115286283A (en) | 2022-08-17 | 2022-08-17 | Dry powder mortar additive containing industrial protein powder and dry powder mortar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115286283A true CN115286283A (en) | 2022-11-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210986420.6A Pending CN115286283A (en) | 2022-08-17 | 2022-08-17 | Dry powder mortar additive containing industrial protein powder and dry powder mortar |
Country Status (1)
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|---|---|
| CN (1) | CN115286283A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838123A (en) * | 2010-05-06 | 2010-09-22 | 山东宏艺科技股份有限公司 | Building mortar plasticizer prepared by using animal protein foaming agent as raw material |
| CN105601158A (en) * | 2015-12-24 | 2016-05-25 | 湖南中岩建材科技有限公司 | Mortar additive |
| CN105948561A (en) * | 2016-04-21 | 2016-09-21 | 张伟 | Wet-mixed mortar additive |
| CN113800812A (en) * | 2021-10-10 | 2021-12-17 | 四川成德预拌砂浆有限公司 | Special additive for machine-made sand plastering mortar and preparation method thereof |
-
2022
- 2022-08-17 CN CN202210986420.6A patent/CN115286283A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838123A (en) * | 2010-05-06 | 2010-09-22 | 山东宏艺科技股份有限公司 | Building mortar plasticizer prepared by using animal protein foaming agent as raw material |
| CN105601158A (en) * | 2015-12-24 | 2016-05-25 | 湖南中岩建材科技有限公司 | Mortar additive |
| CN105948561A (en) * | 2016-04-21 | 2016-09-21 | 张伟 | Wet-mixed mortar additive |
| CN113800812A (en) * | 2021-10-10 | 2021-12-17 | 四川成德预拌砂浆有限公司 | Special additive for machine-made sand plastering mortar and preparation method thereof |
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