CN111348860A - Preparation method of wet-mixed mortar additive - Google Patents

Preparation method of wet-mixed mortar additive Download PDF

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Publication number
CN111348860A
CN111348860A CN202010164491.9A CN202010164491A CN111348860A CN 111348860 A CN111348860 A CN 111348860A CN 202010164491 A CN202010164491 A CN 202010164491A CN 111348860 A CN111348860 A CN 111348860A
Authority
CN
China
Prior art keywords
parts
wet
mixed mortar
mercaptoethanol
glucose
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
Application number
CN202010164491.9A
Other languages
Chinese (zh)
Inventor
贺峰涛
贺峰岩
贺龙生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Jinhong Kangtai New Materials Co ltd
Original Assignee
Sichuan Jinhong Kangtai New Materials Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sichuan Jinhong Kangtai New Materials Co ltd filed Critical Sichuan Jinhong Kangtai New Materials Co ltd
Priority to CN202010164491.9A priority Critical patent/CN111348860A/en
Publication of CN111348860A publication Critical patent/CN111348860A/en
Pending legal-status Critical Current

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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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B24/2641—Polyacrylates; Polymethacrylates
    • C04B24/2647—Polyacrylates; Polymethacrylates containing polyether side chains
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
    • C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
    • 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
    • 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
    • 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
    • C04B2103/44—Thickening, gelling or viscosity increasing agents
    • 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
    • C04B2103/46—Water-loss or fluid-loss reducers, hygroscopic or hydrophilic agents, water retention agents
    • 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
    • C04B2103/60—Agents for protection against chemical, physical or biological attack

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention discloses a preparation method of a wet-mixed mortar admixture, which comprises the following components in parts by weight: water: 550-620 parts of polyether: 85-115 parts of vitamin C: 2-3.5 parts of mercaptoethanol: 3-5 parts of acrylic acid: 20-35 parts of white sugar: 80-110 parts of corn starch: 90-110 parts of glucose: 90-110 parts; the preparation method comprises the following steps: heating water to 40 ℃, adding polyether, stirring for 10 minutes, starting to drop an acrylic acid material A after 10 minutes, mixing vitamin C and mercaptoethanol to obtain a material B, controlling the dropping time of the material AB to be 1 hour, adding corn starch into the material B after the dropping is finished, stirring for 1 hour, adding white sugar and glucose, and stirring for 1 hour to obtain a finished product. The preparation method of the wet-mixed mortar admixture has the advantages of high water reducing rate, good material adaptability, environmental protection requirement meeting, convenient use and operation and direct addition.

Description

Preparation method of wet-mixed mortar additive
Technical Field
The invention belongs to the technical field of mortar admixtures, and particularly relates to a preparation method of a wet-mixed mortar admixture.
Background
Mortar in construction works is gradually replaced by commercial mortar. The commercial mortar has two forms of dry mixing and wet mixing. The dry-mixed mortar is a dry-mixed building material which is prepared by combining solid materials such as a cementing material, a mineral admixture, a fine aggregate, an admixture and the like and premixing the solid materials by a dry-mixing process according to a certain proportion.
Construction dust accounts for 25% of dust emission in urban areas, wherein the dust emission of site-use cement, sand and stone accounts for 35% of the total construction dust. When traditional building mortar is stirred on site, a closed operation site is not provided generally, and air quality is seriously influenced. Compared with commercial mortar, the field stirring mortar also has a large number of technical defects, such as poor mortar workability, large shrinkage, unstable strength, poor impermeability and the like.
In view of the problems, governments in various places have also issued documents that band the field mortar stirring with the ready-mixed mortar.
The ready-mixed mortar can be classified into wet-mixed mortar and dry-mixed mortar according to the production method of the mortar. The wet-mixed mortar is a mixture which is prepared by weighing and mixing cement, mineral admixture, fine aggregate, additive, water and various components determined according to construction performance in a mixing station according to different mortar labels in a certain proportion, then is transported to a using place by using a mixing transport vehicle, is stored in a special container pool and is used within a specified time.
Therefore, how to solve the above-mentioned drawbacks of the prior art becomes the direction of efforts of those skilled in the art.
Disclosure of Invention
The invention aims to provide a preparation method of a wet-mixed mortar admixture, which can completely solve the defects of the prior art.
The purpose of the invention is realized by the following technical scheme: the preparation method of the wet-mixed mortar additive comprises the following components in parts by weight: water: 550-620 parts of polyether: 85-115 parts of vitamin C: 2-3.5 parts of mercaptoethanol: 3-5 parts of acrylic acid: 20-35 parts of white sugar: 80-110 parts of corn starch: 90-110 parts of glucose: 90-110 parts; the preparation method comprises the following steps: heating water to 40 ℃, adding polyether, stirring for 10 minutes, starting to drop an acrylic acid material A after 10 minutes, mixing vitamin C and mercaptoethanol to obtain a material B, controlling the dropping time of the material AB to be 1 hour, adding corn starch into the material B after the dropping is finished, stirring for 1 hour, adding white sugar and glucose, and stirring for 1 hour to obtain a finished product.
As one of the preferable components, the wet-mixed mortar admixture consists of the following components in parts by weight: water: 570 parts, polyether: 100 parts of vitamin C: 2.5 parts, mercaptoethanol: 3.5 parts, acrylic acid: 25 parts of white sugar: 100 parts of corn starch: 100 parts of glucose: 100 parts.
As one of the preferable components, the wet-mixed mortar admixture consists of the following components in parts by weight: water: 590 parts of polyether: 105 parts, vitamin C: 2.9 parts, mercaptoethanol: 4.5 parts, acrylic acid: 32 parts of white sugar: 105 parts of corn starch: 105 parts of glucose: 95 parts of the components.
As one of the preferable components, the wet-mixed mortar admixture consists of the following components in parts by weight: water: 590 parts of polyether: 105 parts, vitamin C: 2.9 parts, mercaptoethanol: 4.5 parts, acrylic acid: 32 parts of white sugar: 105 parts of corn starch: 105 parts of glucose: 95 parts of the components.
As one of the preferable components, the wet-mixed mortar admixture consists of the following components in parts by weight: water: 580 parts of polyether: 95 parts of vitamin C: 3.2 parts, mercaptoethanol: 4.2 parts of acrylic acid: 22 parts of white sugar: 82 parts of corn starch: 92 parts of glucose: and 92 parts.
Compared with the prior art, the invention has the beneficial effects that: the preparation method of the wet-mixed mortar admixture has the advantages of high water reducing rate, good material adaptability, environmental protection requirement meeting, convenient use and operation and direct addition.
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 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.
Example 1:
the wet-mixed mortar admixture is composed of the following components in parts by weight: water: 570 parts, polyether: 100 parts of vitamin C: 2.5 parts, mercaptoethanol: 3.5 parts, acrylic acid: 25 parts of white sugar: 100 parts of corn starch: 100 parts of glucose: 100 parts. The preparation method comprises the following steps: heating water to 40 ℃, adding polyether, stirring for 10 minutes, starting to drop an acrylic acid material A after 10 minutes, mixing vitamin C and mercaptoethanol to obtain a material B, controlling the dropping time of the material AB to be 1 hour, adding corn starch into the material B after the dropping is finished, stirring for 1 hour, adding white sugar and glucose, and stirring for 1 hour to obtain a finished product.
Example 2:
the wet-mixed mortar admixture is composed of the following components in parts by weight: water: 590 parts of polyether: 105 parts, vitamin C: 2.9 parts, mercaptoethanol: 4.5 parts, acrylic acid: 32 parts of white sugar: 105 parts of corn starch: 105 parts of glucose: 95 parts of the components. The preparation method comprises the following steps: heating water to 40 ℃, adding polyether, stirring for 10 minutes, starting to drop an acrylic acid material A after 10 minutes, mixing vitamin C and mercaptoethanol to obtain a material B, controlling the dropping time of the material AB to be 1 hour, adding corn starch into the material B after the dropping is finished, stirring for 1 hour, adding white sugar and glucose, and stirring for 1 hour to obtain a finished product.
Example 3:
the wet-mixed mortar admixture is composed of the following components in parts by weight: water: 590 parts of polyether: 105 parts, vitamin C: 2.9 parts, mercaptoethanol: 4.5 parts, acrylic acid: 32 parts of white sugar: 105 parts of corn starch: 105 parts of glucose: 95 parts of the components. The preparation method comprises the following steps: heating water to 40 ℃, adding polyether, stirring for 10 minutes, starting to drop an acrylic acid material A after 10 minutes, mixing vitamin C and mercaptoethanol to obtain a material B, controlling the dropping time of the material AB to be 1 hour, adding corn starch into the material B after the dropping is finished, stirring for 1 hour, adding white sugar and glucose, and stirring for 1 hour to obtain a finished product.
Example 4:
a wet mix mortar admixture, water: 580 parts of polyether: 95 parts of vitamin C: 3.2 parts, mercaptoethanol: 4.2 parts of acrylic acid: 22 parts of white sugar: 82 parts of corn starch: 92 parts of glucose: and 92 parts. The preparation method comprises the following steps: heating water to 40 ℃, adding polyether, stirring for 10 minutes, starting to drop an acrylic acid material A after 10 minutes, mixing vitamin C and mercaptoethanol to obtain a material B, controlling the dropping time of the material AB to be 1 hour, adding corn starch into the material B after the dropping is finished, stirring for 1 hour, adding white sugar and glucose, and stirring for 1 hour to obtain a finished product.
The invention can effectively control the operable time of the wet-mixed mortar according to the construction schedule, adjust the hydration rate of the cement and the release rate of the additive from the microscopic properties of the material, and accurately control the balance point of the operational performance and the later strength of the wet-mixed mortar.
Compared with the prior art, the invention has the following good use effects: effectively prolongs the operable time of the wet-mixed mortar, provides the multifunctional composite admixture with water reducing and retaining functions to increase the opening time through the water retaining effect, and ensures that the opening time can reach more than 30 hours and the water retaining rate reaches more than 92 percent. The wet-mixed mortar admixture integrates the functions of thickening, water reducing, water retaining, plasticizing, cracking resistance and the like, particularly has the function of adjusting the opening time of the wet-mixed mortar, adjusts the weight ratio of the water retaining thickening component and the opening time adjusting component, and adjusts the mixing amount of the water retaining plasticizer of the wet-mixed mortar, so that the opening time of the wet-mixed mortar can be controlled within 12-18 hours. The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (5)

1. A preparation method of a wet-mixed mortar additive is characterized by comprising the following steps: the wet-mixed mortar admixture is composed of the following components in parts by weight: water: 550-620 parts of polyether: 85-115 parts of vitamin C: 2-3.5 parts of mercaptoethanol: 3-5 parts of acrylic acid: 20-35 parts of white sugar: 80-110 parts of corn starch: 90-110 parts of glucose: 90-110 parts;
the preparation method comprises the following steps: heating water to 40 ℃, adding polyether, stirring for 10 minutes, starting to drop an acrylic acid material A after 10 minutes, mixing vitamin C and mercaptoethanol to obtain a material B, controlling the dropping time of the material AB to be 1 hour, adding corn starch into the material B after the dropping is finished, stirring for 1 hour, adding white sugar and glucose, and stirring for 1 hour to obtain a finished product.
2. The method for preparing the wet-mixed mortar admixture according to claim 1, wherein the method comprises the following steps: the wet-mixed mortar admixture is composed of the following components in parts by weight: water: 570 parts, polyether: 100 parts of vitamin C: 2.5 parts, mercaptoethanol: 3.5 parts, acrylic acid: 25 parts of white sugar: 100 parts of corn starch: 100 parts of glucose: 100 parts.
3. The method for preparing the wet-mixed mortar admixture according to claim 1, wherein the method comprises the following steps: the wet-mixed mortar admixture is composed of the following components in parts by weight: water: 590 parts of polyether: 105 parts, vitamin C: 2.9 parts, mercaptoethanol: 4.5 parts, acrylic acid: 32 parts of white sugar: 105 parts of corn starch: 105 parts of glucose: 95 parts of the components.
4. The method for preparing the wet-mixed mortar admixture according to claim 1, wherein the method comprises the following steps: the wet-mixed mortar admixture is composed of the following components in parts by weight: water: 590 parts of polyether: 105 parts, vitamin C: 2.9 parts, mercaptoethanol: 4.5 parts, acrylic acid: 32 parts of white sugar: 105 parts of corn starch: 105 parts of glucose: 95 parts of the components.
5. The method for preparing the wet-mixed mortar admixture according to claim 1, wherein the method comprises the following steps: the wet-mixed mortar admixture is composed of the following components in parts by weight: water: 580 parts of polyether: 95 parts of vitamin C: 3.2 parts, mercaptoethanol: 4.2 parts of acrylic acid: 22 parts of white sugar: 82 parts of corn starch: 92 parts of glucose: and 92 parts.
CN202010164491.9A 2020-03-11 2020-03-11 Preparation method of wet-mixed mortar additive Pending CN111348860A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114835430A (en) * 2022-05-20 2022-08-02 潍坊砼筑建筑科技有限公司 Plasticity-maintaining agent for mortar and preparation method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105366984A (en) * 2015-12-08 2016-03-02 科之杰新材料集团有限公司 Wet-mixed mortar water-retention plasticizer, and preparation method thereof
CN108409191A (en) * 2018-04-26 2018-08-17 长兴发达水泥制品有限公司 A kind of preparation method of wet mixing mortar additive
CN109133713A (en) * 2018-11-13 2019-01-04 贵州石博士科技有限公司 A kind of preparation method and application of new type mortar additive
CN109293274A (en) * 2018-09-29 2019-02-01 莱芜市易和环保科技有限公司 A kind of wet mixing mortar special additive and preparation method thereof
CN110510912A (en) * 2019-09-30 2019-11-29 湖南格林朗科技有限公司 A kind of wet mixing mortar additive and preparation method thereof
CN110776602A (en) * 2019-11-28 2020-02-11 安徽森普新型材料发展有限公司 Preparation method of plastic retention agent for wet-mixed mortar

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105366984A (en) * 2015-12-08 2016-03-02 科之杰新材料集团有限公司 Wet-mixed mortar water-retention plasticizer, and preparation method thereof
CN108409191A (en) * 2018-04-26 2018-08-17 长兴发达水泥制品有限公司 A kind of preparation method of wet mixing mortar additive
CN109293274A (en) * 2018-09-29 2019-02-01 莱芜市易和环保科技有限公司 A kind of wet mixing mortar special additive and preparation method thereof
CN109133713A (en) * 2018-11-13 2019-01-04 贵州石博士科技有限公司 A kind of preparation method and application of new type mortar additive
CN110510912A (en) * 2019-09-30 2019-11-29 湖南格林朗科技有限公司 A kind of wet mixing mortar additive and preparation method thereof
CN110776602A (en) * 2019-11-28 2020-02-11 安徽森普新型材料发展有限公司 Preparation method of plastic retention agent for wet-mixed mortar

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114835430A (en) * 2022-05-20 2022-08-02 潍坊砼筑建筑科技有限公司 Plasticity-maintaining agent for mortar and preparation method thereof

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