CN111646746B - Mortar - Google Patents
Mortar Download PDFInfo
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- CN111646746B CN111646746B CN202010425560.7A CN202010425560A CN111646746B CN 111646746 B CN111646746 B CN 111646746B CN 202010425560 A CN202010425560 A CN 202010425560A CN 111646746 B CN111646746 B CN 111646746B
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/023—Fired or melted materials
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
- C04B7/246—Cements from oil shales, residues or waste other than slag from waste building materials, e.g. waste asbestos-cement products, demolition waste
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/44—Burning; Melting
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/48—Clinker treatment
- C04B7/52—Grinding ; After-treatment of ground cement
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
-
- 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)
- Civil Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses mortar, which comprises the following raw materials in percentage by weight: 60-75% of aggregate, 1.7-2.0% of gypsum, 1.7-2.2% of redispersible latex powder, 0.1-0.3% of retarder and 20-36% of cement clinker; the preparation raw materials of the aggregate comprise, by weight, 70-85 parts of iron-aluminous slag and 10-20 parts of building waste soil; the cement clinker preparation raw materials comprise 10-25 parts of iron-aluminum-alum slag, 35-40 parts of building waste soil, 35-50 parts of limestone and 5-10 parts of stabilizer. The iron aluminous slag is applied to mortar preparation instead of natural sand, resource utilization can be realized, the environment is protected, the cost is reduced, and the prepared mortar has excellent mechanical properties.
Description
Technical Field
The invention relates to a building material, in particular to mortar.
Background
With the steady development of national economy and the promotion of urbanization pace, the construction industry is rapidly developed, and the requirements for various mortars in construction engineering are also sharply increased. Natural sand (e.g., sandstone, etc.) is the main raw material for preparing mortar, and it is the most used raw material in mortar. And the natural sand is an irrenewable resource, and a large amount of mining seriously damages the ecological environment. In recent years, with the concern of the country on environmental protection, the governments of all parts have successively made policy and regulation for limiting the exploitation of natural sand, so that the natural sand is insufficient in market supply and high in price. Therefore, there is an urgent need to find a sand substitute for use in preparing mortars.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides mortar.
The technical scheme adopted by the invention is as follows:
according to a first aspect of the invention, the mortar is provided, and comprises the following raw materials in percentage by weight based on the total weight of the mortar: 60-75% of aggregate, 1.7-2.0% of gypsum, 1.7-2.2% of water reducing agent, 0.1-0.3% of retarder and 20-36% of cement clinker;
the aggregate is prepared from the following preparation raw materials in parts by weight: 70-85 parts of iron-aluminum-alum slag and 10-20 parts of building waste soil;
the cement clinker is prepared from the following preparation raw materials in parts by weight: 10-25 parts of iron-aluminum-alum slag, 35-40 parts of building waste soil, 35-50 parts of limestone and 5-10 parts of stabilizer.
According to some embodiments of the invention, the raw materials for preparing the aggregate further comprise 5-10 parts of graphite powder.
The iron aluminous slag is industrial waste slag, and the graphite powder can also be industrial waste stone ink powder in order to save cost and realize resource utilization of the industrial waste slag. According to some embodiments of the invention, the iron aluminous slag and/or the graphite powder are waste slag generated in a valuable metal recovery process in waste lithium ion batteries; the main components of the jarosite slag comprise jarosite, aluminum hydroxide and sodium sulfate; the main component of the waste graphite powder is graphite.
According to some embodiments of the invention, the water reducing agent is selected from at least one of redispersible latex powders, casein, naphthalene based water reducing agents, melamine formaldehyde condensates, polycarboxylic acids.
According to some embodiments of the invention, the aggregate is prepared by compression molding, sintering and crushing of the raw materials for preparing the aggregate. Because the iron aluminous slag generated in the valuable metal recovery process in the waste lithium ion battery has larger contractibility under the high-temperature condition, the contractibility of the iron aluminous slag is gradually increased along with the rise of the temperature below the melting temperature, the sintered particles are gradually hardened, and the strength can be kept unchanged while the contraction of the iron aluminous slag is reduced by adding the building waste soil. In addition, iron, silicon and aluminum elements in the iron-aluminous slag and the building waste soil are physically bonded under the mechanical action and chemically bonded under the high-temperature action to form a space net structure, so that the aggregate strength is provided, and the compressive strength of the product mortar is further improved. The addition of graphite powder can provide internal combustion and reduce energy consumption. According to the method, the aggregate is prepared by mixing, pressing and molding the above preparation raw materials, sintering and crushing the mixture, and then is used for preparing mortar. In addition, through research, the addition amount of the iron alum slag in the aggregate preparation is generally not less than 70% of the total weight of the aggregate preparation raw materials and not more than 85% of the total weight of the aggregate preparation raw materials.
The shrinkage of the aluminoferrite slag increases with the increase in temperature, but when the shrinkage is too high, the load on the crusher increases, and therefore, the sintering temperature is generally strictly controlled. According to some embodiments of the invention, the sintering temperature of the sintering is between 1000 ℃ and 1200 ℃. The sintering time of the sintering is generally 30-120 min. Further, the pressure of the press molding is 25MPa or more.
According to some embodiments of the invention, the aggregate is undersize obtained by sieving with a 10-mesh sieve, i.e. the aggregate has a particle size of less than or equal to 2 mm.
According to some embodiments of the invention, the cement clinker is produced by calcining and grinding the raw materials for producing the cement clinker. Through the mode, in the preparation process of the cement clinker, the jarosite and the aluminum hydroxide in the jarosite slag and the silicon-aluminum compound in the building waste soil are melted at high temperature to form a silicate component, and then the silicate component is mixed with the gypsum and added with water to form a specific silicate structure, so that a good gelling effect is achieved. In the cement clinker preparation process, the ferro-aluminous slag is used as an iron-containing raw material and forms silicate substances with the building waste soil under high-temperature melting, but the strength of the finished mortar is reduced when the ferro-aluminous slag is added in a large amount, and the generated silicate substances are insufficient when the ferro-aluminous slag is added in a small amount, so that the ferro-aluminous slag needs to be added in a proper amount, and generally accounts for 10-25% of the total weight of the cement clinker preparation raw materials. In the preparation process of the cement clinker, the calcining temperature is generally controlled to be 1300-1350 ℃.
According to some embodiments of the invention, the cement clinker is undersize obtained by sieving through a 250 mesh sieve.
According to some embodiments of the invention, the mortar is a dry-mixed mortar. The dry powder mortar can be prepared by uniformly mixing the components, can be transported to a construction site in a bag or bulk form during construction and can be directly used after being mixed with water.
In the raw materials of the mortar, the retarder is at least one selected from potassium hydrogen phosphate, citrate and tartrate. The iron alum slag is sieved by a 80-mesh sieve, namely the particle size of the iron alum slag is less than or equal to 0.2 mm. The raw material gypsum of the mortar can specifically adopt desulfurized gypsum.
The embodiment of the invention has the beneficial effects that:
the embodiment of the invention provides mortar, which is used for preparing aggregate and cement clinker by using jarosite slag to replace natural sandstone for batching, so that the mortar can be used for preparing the mortar, the consumption of the natural sandstone can be reduced, the resource utilization of industrial waste residue is realized, the waste is changed into the valuable, the environment is protected, and the production cost of the mortar is reduced. In addition, aggregate prepared from preparation raw materials including building waste soil, iron alum slag and waste stone toner is used as a framework to provide strength, cement clinker and gypsum play a role in gelation, and the prepared mortar has excellent flexural strength and compressive strength through synergistic cooperation of the raw materials.
Detailed Description
The concept and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments to fully understand the objects, features and effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention.
Example 1
The preparation method of the mortar comprises the following steps (in the following material taking process, each part by weight is 1 kg):
s1, crushing iron-alumen-based slag generated in the valuable metal recovery process of the waste lithium ion battery, sieving with a 80-mesh sieve, and taking undersize; and carrying out the same crushing treatment on the building waste soil to obtain the building waste soil powder.
S2, taking 70 parts by weight of the iron aluminous slag processed in the step S1, 20 parts by weight of building waste soil powder and 10 parts by weight of waste stone ink powder generated in the valuable metal recovery process of the waste lithium ion battery, uniformly mixing, and then pressing and forming to obtain a formed green body;
s3, sintering the formed green body prepared in the step S2 at a high temperature of 1150 ℃, crushing the green body after cooling, sieving the green body by a 10-mesh sieve, and taking down the sieve to obtain aggregate;
s4, mixing 25 parts by weight of the iron-aluminum-alum slag processed in the step S1 with 35 parts by weight of building waste soil powder, 35 parts by weight of limestone and 5 parts by weight of stabilizer calcium chloride, calcining at 1350 ℃ at high temperature, cooling, grinding into powder, and sieving with a 250-mesh sieve to obtain cement clinker;
s5, taking 60 parts by weight of the aggregate prepared in the step S3, 1.7 parts by weight of gypsum, 2.2 parts by weight of redispersible latex powder, 0.1 part by weight of potassium hydrogen phosphate and 36 parts by weight of cement clinker, and uniformly mixing to obtain the dry-mixed mortar.
Example 2
The preparation method of the mortar of the embodiment is basically the same as that of the mortar of the embodiment 1, except that:
in step S4, the raw materials for preparing the cement clinker include: 20 parts by weight of the iron-aluminous slag treated in the step S1, 35 parts by weight of building waste soil powder, 35 parts by weight of limestone and 10 parts by weight of calcium chloride serving as a stabilizer;
in step S5, the mortar comprises the following raw materials: 65 parts by weight of the aggregate prepared in the step S3, 2.0 parts by weight of gypsum, 1.7 parts by weight of redispersible latex powder, 0.3 part by weight of potassium hydrogen phosphate and 31 parts by weight of cement clinker.
Example 3
The preparation method of the mortar of the embodiment is basically the same as that of the mortar of the embodiment 1, except that:
in step S4, the raw materials for preparing the cement clinker include: 15 parts by weight of the iron-aluminous slag treated in the step S1, 40 parts by weight of building waste soil powder, 35 parts by weight of limestone and 10 parts by weight of calcium chloride serving as a stabilizer;
in step S5, the mortar comprises the following raw materials: 70 parts by weight of the aggregate prepared in the step S3, 1.7 parts by weight of gypsum, 2.2 parts by weight of redispersible latex powder, 0.1 part by weight of potassium hydrogen phosphate and 26 parts by weight of cement clinker.
Example 4
The preparation method of the mortar of the embodiment is basically the same as that of the mortar of the embodiment 1, except that:
in step S2, the aggregate is prepared from the following raw materials: 85 parts by weight of the iron-alumen-um slag treated in the step S1, 10 parts by weight of building waste soil powder and 5 parts by weight of waste stone toner;
in step S4, the raw materials for preparing the cement clinker include: 15 parts by weight of the iron-aluminous slag treated in the step S1, 35 parts by weight of building waste soil powder, 45 parts by weight of limestone and 5 parts by weight of calcium chloride serving as a stabilizer;
in step S5, the mortar comprises the following raw materials: 70 parts by weight of the aggregate prepared in the step S3, 2.0 parts by weight of gypsum, 1.7 parts by weight of redispersible latex powder, 0.3 part by weight of potassium hydrogen phosphate and 26 parts by weight of cement clinker.
Example 5
The preparation method of the mortar in the embodiment is basically the same as that of the mortar in the embodiment 4, except that:
in step S4, the raw materials for preparing the cement clinker include: 10 parts by weight of the iron-aluminous slag treated in the step S1, 35 parts by weight of building waste soil powder, 50 parts by weight of limestone and 5 parts by weight of calcium chloride serving as a stabilizer;
in step S5, the mortar comprises the following raw materials: 75 parts by weight of the aggregate prepared in the step S3, 1.7 parts by weight of gypsum, 2.2 parts by weight of redispersible latex powder, 0.1 part by weight of potassium hydrogen phosphate and 21 parts by weight of cement clinker.
Example 6
The preparation method of the mortar in the embodiment is basically the same as that of the mortar in the embodiment 4, except that:
in step S4, the raw materials for preparing the cement clinker include: 10 parts by weight of the iron-aluminous slag treated in the step S1, 40 parts by weight of building waste soil powder, 40 parts by weight of limestone and 10 parts by weight of calcium chloride serving as a stabilizer;
in step S5, the mortar comprises the following raw materials: 75 parts by weight of the aggregate prepared in the step S3, 2.0 parts by weight of gypsum, 1.7 parts by weight of redispersible latex powder, 0.3 part by weight of potassium hydrogen phosphate and 21 parts by weight of cement clinker.
Comparative example 1
The preparation method of the mortar of the comparative example is different from the preparation method of the mortar of the example 1 in that: the mortar aggregate of this comparative example was replaced with natural yellow sand, and the cement clinker of example 1 was replaced with commercially available cement clinker.
Comparative example 2
The preparation method of this comparative example is substantially the same as that of example 1 except that:
and S4, mixing 30 parts by weight of the iron-aluminous slag processed in the step S1 with 30 parts by weight of building waste soil powder, 35 parts by weight of limestone and 5 parts by weight of stabilizer calcium chloride, calcining at 1350 ℃ at high temperature, cooling, grinding into powder, and sieving with a 250-mesh sieve to obtain the cement clinker.
Comparative example 3
The preparation method of this comparative example is substantially the same as that of example 1 except that:
s4, mixing 5 parts by weight of the iron-aluminous slag processed in the step S1 with 45 parts by weight of building waste soil powder, 35 parts by weight of limestone and 5 parts by weight of stabilizer calcium chloride, calcining at 1350 ℃ at high temperature, cooling, grinding into powder, and sieving with a 250-mesh sieve to obtain the cement clinker.
Comparative example 4
The preparation method of this comparative example is substantially the same as that of example 1 except that:
in step S2, the aggregate is prepared from the following raw materials: 90 parts by weight of the iron-alumen-um slag treated in the step S1, 5 parts by weight of building waste soil powder and 5 parts by weight of waste stone toner.
Comparative example 5
The preparation method of this comparative example is substantially the same as that of example 1 except that:
in step S2, the aggregate is prepared from the following raw materials: 65 parts by weight of the iron-aluminous slag treated in the step S1, 35 parts by weight of building waste soil powder and 5 parts by weight of waste stone toner.
The performance of the mortars prepared in the above examples 1 to 6 and comparative examples 1 to 5 was tested with reference to JGJ70-1990 Experimental method for basic Performance of building mortar, and the results are shown in Table 1.
TABLE 1
As shown in Table 1, the mortar prepared in the above examples 1-6 has high compressive strength and flexural strength, and excellent mechanical properties.
Claims (8)
1. The mortar is characterized by comprising the following raw materials in percentage by weight based on the total weight of the mortar: 60-75% of aggregate, 1.7-2.0% of gypsum, 1.7-2.2% of water reducing agent, 0.1-0.3% of retarder and 20-36% of cement clinker;
the aggregate is prepared from the following preparation raw materials in parts by weight: 70-85 parts of iron-aluminum-alum slag, 10-20 parts of building waste soil and 5-10 parts of graphite powder;
the cement clinker is prepared from the following preparation raw materials in parts by weight: 10-25 parts of iron-aluminous slag, 35-40 parts of building waste soil, 35-50 parts of limestone and 5-10 parts of stabilizer;
the iron alum slag and/or the graphite powder are waste slag generated in the recovery process of valuable metals in waste lithium ion batteries.
2. The mortar of claim 1, wherein the water reducing agent is selected from at least one of re-dispersible latex powder, casein, naphthalene water reducing agents, melamine formaldehyde condensates, and polycarboxylic acids.
3. Mortar according to claim 1, wherein the aggregate is prepared from raw materials for preparing the aggregate by press forming, sintering and crushing.
4. Mortar according to claim 3, characterized in that the sintering temperature of the sintering is between 1000 and 1200 ℃.
5. Mortar according to claim 3, wherein the aggregate is undersize obtained by sieving with a 10-mesh sieve.
6. Mortar according to claim 1, wherein the cement clinker is obtained by calcining and grinding raw materials for producing the cement clinker.
7. A screed according to claim 6 wherein the cement clinker is obtained as a undersize passing through a 250 mesh screen.
8. Mortar according to any one of claims 1 to 7, characterized in that the mortar is a dry-mixed mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010425560.7A CN111646746B (en) | 2020-05-19 | 2020-05-19 | Mortar |
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| CN202010425560.7A CN111646746B (en) | 2020-05-19 | 2020-05-19 | Mortar |
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| CN111646746B true CN111646746B (en) | 2022-01-07 |
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| CN113816711A (en) * | 2021-09-29 | 2021-12-21 | 湖南中邦再生资源科技有限公司 | Foamed concrete block and preparation method and application thereof |
| CN114105655B (en) | 2021-11-17 | 2023-02-14 | 广东邦普循环科技有限公司 | Method for preparing refractory material by using waste battery waste residues and application of refractory material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106116347A (en) * | 2016-06-26 | 2016-11-16 | 吴迪 | A kind of preparation method of anti-cracking plastering mortar |
| CN106746775A (en) * | 2016-12-09 | 2017-05-31 | 嘉华特种水泥股份有限公司 | A kind of clinker and preparation method thereof |
| CN107200598A (en) * | 2017-06-26 | 2017-09-26 | 湖南邦普循环科技有限公司 | A kind of waste residue produced using reclaiming in used Li ion cell during valuable metal prepares the method and its material of porous construction material |
| CN108484032A (en) * | 2018-03-30 | 2018-09-04 | 徐冬 | A kind of dry-mixed ground mortar of crack resistance type |
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2020
- 2020-05-19 CN CN202010425560.7A patent/CN111646746B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106116347A (en) * | 2016-06-26 | 2016-11-16 | 吴迪 | A kind of preparation method of anti-cracking plastering mortar |
| CN106746775A (en) * | 2016-12-09 | 2017-05-31 | 嘉华特种水泥股份有限公司 | A kind of clinker and preparation method thereof |
| CN107200598A (en) * | 2017-06-26 | 2017-09-26 | 湖南邦普循环科技有限公司 | A kind of waste residue produced using reclaiming in used Li ion cell during valuable metal prepares the method and its material of porous construction material |
| CN108484032A (en) * | 2018-03-30 | 2018-09-04 | 徐冬 | A kind of dry-mixed ground mortar of crack resistance type |
Non-Patent Citations (1)
| Title |
|---|
| 超早强支座砂浆凝胶体系的配制研究;查焱鹏等;《混凝土》;20100831(第250期);118-121 * |
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