CN115259805A - Anti-radiation mortar and preparation method thereof - Google Patents
Anti-radiation mortar and preparation method thereof Download PDFInfo
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- CN115259805A CN115259805A CN202210797094.4A CN202210797094A CN115259805A CN 115259805 A CN115259805 A CN 115259805A CN 202210797094 A CN202210797094 A CN 202210797094A CN 115259805 A CN115259805 A CN 115259805A
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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
- C04B28/06—Aluminous 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00258—Electromagnetic wave absorbing or shielding materials
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to radiation-proof mortar and a preparation method thereof, wherein the radiation-proof mortar comprises the following raw materials in parts by weight: 200-300 parts of ordinary portland cement, 5-20 parts of high-alumina cement, 150-350 parts of barite sand, 100-150 parts of coarse sand, 50-100 parts of barium sulfate, 30-80 parts of dispersed latex powder, 30-55 parts of cellulose ether, 60-200 parts of glass fiber, 30-55 parts of a dispersing agent, 30-55 parts of a defoaming agent and 150-350 parts of expanded perlite, wherein the proportion of the ordinary portland cement, the high-alumina cement, the barite sand and the coarse sand is 0.5:5.44, the barium sulfate content in the barite sand is not lower than 80%, and the preparation method of the radiation-proof mortar comprises the following steps: before the preparation, the raw materials are detected and processed. According to the radiation-proof mortar and the preparation method thereof, the arrangement of the expanded perlite and the glass fiber obviously improves the thermal stability of the radiation-proof mortar, and after the hydration structure of the radiation-proof mortar is damaged, the gap between the expanded perlite and the glass fiber can be filled, so that the mortar is effectively prevented from being dried, cracked and falling off.
Description
Technical Field
The invention relates to the technical field of radiation-proof mortar, in particular to radiation-proof mortar and a preparation method thereof.
Background
The radiation-proof cement is a kind of cement which can better shield X-ray, Y-ray, fast neutron and thermal neutron, and the main varieties of this kind of cement include barium cement, strontium cement and boron-containing cement, etc., the barium cement uses barite clay as main raw material, and is calcined to obtain clinker which is formed by using barium silicate as main mineral, and then a proper amount of gypsum is added to make grinding.
In the process of implementing the application, the inventor finds that the prior radiation-proof mortar, namely barium cement, has poor thermal stability, is only suitable for manufacturing unheated radiation protection walls, can be largely dehydrated at 100 ℃, so that a hydrated structure is damaged, the strength of slurry is greatly reduced, and further improvement is needed.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides the radiation-proof mortar and the preparation method thereof, and solves the problem of poor thermal stability of barium cement.
The technical scheme for solving the technical problems is as follows: the anti-radiation mortar comprises the following raw materials in parts by weight: 200-300 parts of ordinary portland cement, 5-20 parts of high-alumina cement, 150-350 parts of barite sand, 100-150 parts of coarse sand, 50-100 parts of barium sulfate, 30-80 parts of dispersed latex powder, 30-55 parts of cellulose ether, 60-200 parts of glass fiber, 30-55 parts of a dispersing agent, 30-55 parts of a defoaming agent, 150-350 parts of expanded perlite, 60-80 parts of butylbenzene emulsion, 30-55 parts of polyacrylate, 50-100 parts of polyethylene acetate and 30-80 parts of propylbenzene emulsion.
Through the scheme, the expanded perlite can be expanded instantly after the temperature rises due to the arrangement of the expanded perlite, and further the cracks generated by the fact that the hydration structure of the barium cement is damaged are filled
Further, the proportion of the ordinary Portland cement, the high-alumina cement, the barite sand and the coarse sand is 0.5:0.5:5.44:3.
further, the content of barium sulfate in the barite sand is not less than 80%.
A preparation method of radiation-proof mortar comprises the following steps:
1) Before the preparation, all raw materials are detected and processed;
2) Mixing ordinary portland cement, high-alumina cement, barite sand and coarse sand in proportion, then grinding the mixture, and adding barium sulfate into the barite sand when the barium sulfate in the barite sand does not reach 80%;
3) Then adding the dispersed latex powder, cellulose ether, glass fiber, dispersant, defoamer and expanded perlite, mixing at medium speed for 6-10 minutes in a HZ-20 type forced stirrer, and then mixing at high speed for 3-5 minutes;
4) Finally, blending the butylbenzene emulsion, the polyacrylic acid ester, the polyvinyl acetate and the propylbenzene emulsion according to a certain proportion, pouring the mixed emulsion into the third step, mixing the butylbenzene emulsion, the polyacrylic acid ester, the polyvinyl acetate and the propylbenzene emulsion for the second time, and grinding a finished product after mixing;
5) And (4) introducing the mixed dry powder into a finished product homogenizing warehouse, automatically packaging by using electronic metering, and warehousing for storage.
Through the scheme, the glass fiber is an inorganic non-metallic material with excellent performance, is various, has the advantages of good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, and can isolate the influence of high temperature on the hydration structure of the barium cement as much as possible.
Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:
1. according to the radiation-proof mortar and the preparation method thereof, the expanded perlite, the glass fiber, the styrene-butadiene emulsion, the polyacrylate, the polyvinyl acetate and the propyl benzene emulsion are arranged, so that the thermal stability of the radiation-proof mortar is remarkably improved, and after the hydration structure of the radiation-proof mortar is damaged, the gap between the expanded perlite and the glass fiber can still be filled, so that the mortar is effectively prevented from being dried, cracked and falling off.
2. According to the radiation-proof mortar and the preparation method thereof, the cost of raw materials of the radiation-proof mortar is obviously reduced by the arrangement of barium sulfate.
Detailed Description
The principles and features of this invention will be described in conjunction with embodiments of the invention, which are set forth merely to illustrate the invention and are not intended to limit the scope of the invention.
The first embodiment is as follows:
the anti-radiation mortar comprises the following raw materials in parts by weight: 200 parts of ordinary portland cement, 5 parts of high-alumina cement, 150 parts of barite sand, 100 parts of coarse sand, 50 parts of barium sulfate, 30 parts of dispersed latex powder, 30 parts of cellulose ether, 60 parts of glass fiber, 30 parts of a dispersing agent, 30 parts of a defoaming agent, 150 parts of expanded perlite, 60 parts of styrene-butadiene emulsion, 30 parts of polyacrylate, 50 parts of polyvinyl acetate and 30 parts of propyl benzene emulsion.
In the embodiment, the ratio of the ordinary portland cement, the high-alumina cement, the barite sand and the coarse sand is 0.5:5.44:3.
In this example, the barium sulfate content in the barite sand is not less than 80%.
A preparation method of radiation-proof mortar comprises the following steps:
1) Before the preparation, all raw materials are detected and processed;
2) Mixing ordinary portland cement, high-alumina cement, barite sand and coarse sand in proportion, then grinding the mixture, and adding barium sulfate into the barite sand when the barium sulfate in the barite sand does not reach 80%;
3) Then adding the dispersed latex powder, cellulose ether, glass fiber, dispersant, defoamer and expanded perlite, mixing for 6 minutes at medium speed in a HZ-20 type forced stirrer, and mixing for 3 minutes at high speed;
4) Finally, blending the butylbenzene emulsion, the polyacrylic acid ester, the polyvinyl acetate and the propylbenzene emulsion according to a certain proportion, pouring the mixed emulsion into the third step, mixing the butylbenzene emulsion, the polyacrylic acid ester, the polyvinyl acetate and the propylbenzene emulsion for the second time, and grinding a finished product after mixing;
5) And (4) guiding the mixed dry powder into a finished product homogenizing warehouse, automatically packaging by using electronic metering, and warehousing for storage.
Example two:
the anti-radiation mortar comprises the following raw materials in parts by weight: 200-300 parts of ordinary portland cement, 12.5 parts of high-alumina cement, 250 parts of barite sand, 125 parts of coarse sand, 75 parts of barium sulfate, 55 parts of dispersed latex powder, 42.5 parts of cellulose ether, 130 parts of glass fiber, 42.5 parts of dispersing agent, 42.5 parts of defoaming agent, 250 parts of expanded perlite, 70 parts of styrene-butadiene emulsion, 42.5 parts of polyacrylate, 75 parts of polyethylene acetate and 55 parts of propyl benzene emulsion.
In the embodiment, the ratio of the ordinary portland cement, the high-alumina cement, the barite sand and the coarse sand is 0.5:5.44:3.
In this example, the barium sulfate content in the barite sand is not less than 80%.
A preparation method of radiation-proof mortar comprises the following steps:
1) Before the preparation, all raw materials are detected and processed;
2) Mixing ordinary portland cement, high-alumina cement, barite sand and coarse sand in proportion, then grinding the mixture, and adding barium sulfate into the barite sand when the barium sulfate in the barite sand does not reach 80%;
3) Then adding the dispersed latex powder, cellulose ether, glass fiber, dispersant, defoamer and expanded perlite, mixing at medium speed for 8 minutes in a HZ-20 type forced mixer, and mixing at high speed for 4 minutes;
4) Finally, blending the styrene-butadiene emulsion, the polyacrylate, the polyvinyl acetate and the propylbenzene emulsion according to a certain proportion, pouring the mixed emulsion into the step three, mixing the mixed emulsion again, and grinding the finished product after mixing;
5) And (4) guiding the mixed dry powder into a finished product homogenizing warehouse, automatically packaging by using electronic metering, and warehousing for storage.
Example three:
the anti-radiation mortar comprises the following raw materials in parts by weight: 200-300 parts of ordinary portland cement, 20 parts of high-alumina cement, 350 parts of barite sand, 150 parts of coarse sand, 100 parts of barium sulfate, 80 parts of dispersed latex powder, 55 parts of cellulose ether, 200 parts of glass fiber, 55 parts of dispersing agent, 55 parts of defoaming agent, 350 parts of expanded perlite, 80 parts of butylbenzene latex, 55 parts of polyacrylate, 100 parts of polyvinyl acetate and 80 parts of propylbenzene latex.
In the embodiment, the ratio of the ordinary portland cement, the high-alumina cement, the barite sand and the coarse sand is 0.5:5.44:3.
In this example, the barium sulfate content in the barite sand is not less than 80%.
A preparation method of radiation-proof mortar comprises the following steps:
1) Before the preparation, all raw materials are detected and processed;
2) Mixing ordinary portland cement, high-alumina cement, barite sand and coarse sand in proportion, then grinding the mixture, and adding barium sulfate into the barite sand when the barium sulfate in the barite sand does not reach 80%;
3) Then adding the dispersed latex powder, cellulose ether, glass fiber, dispersant, defoamer and expanded perlite, mixing for 10 minutes at medium speed in a HZ-20 type forced mixer, and mixing for 5 minutes at high speed;
4) Finally, blending the styrene-butadiene emulsion, the polyacrylate, the polyvinyl acetate and the propylbenzene emulsion according to a certain proportion, pouring the mixed emulsion into the step three, mixing the mixed emulsion again, and grinding the finished product after mixing;
5) And (4) introducing the mixed dry powder into a finished product homogenizing warehouse, automatically packaging by using electronic metering, and warehousing for storage.
The working principle of the above embodiment is as follows:
(1) When in use, the glass fiber is an inorganic nonmetallic material with excellent performance, has various types, has the advantages of good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, can isolate the influence of high temperature on the hydration structure of the barium cement as much as possible, simultaneously can instantly expand expanded perlite after the temperature rises, further fills up the cracks generated by the damage of the hydration structure of the barium cement, the film forming process of the mixture of the styrene-butadiene emulsion, the polyacrylate, the polyethylene acetate and the propyl benzene emulsion is generated in the hydration process of the cement, the water is used for hydration and is evaporated, the polymer forms a tough and compact network film-shaped network structure in the whole matrix, is distributed among cement mortar frameworks to fill the gaps, cuts off the channels with the outside, further improves the performance of the material, effectively avoids the mortar from being dried to crack and fall off, and obviously improves the thermal stability of the material.
(2) When the barium sulfate in the barite sand does not reach 80 percent in use, the barium sulfate is added into the barite sand, then the ordinary portland cement, the high-alumina cement, the barite sand and the coarse sand are mixed in proportion, and then the mixture is ground, so that the selection standard of the barite sand is obviously reduced, and the cost of the raw materials of the anti-radiation mortar is obviously reduced.
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, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. The anti-radiation mortar is characterized by comprising the following raw materials in parts by weight: 200-300 parts of ordinary portland cement, 5-20 parts of high-alumina cement, 150-350 parts of barite sand, 100-150 parts of coarse sand, 50-100 parts of barium sulfate, 30-80 parts of dispersed latex powder, 30-55 parts of cellulose ether, 60-200 parts of glass fiber, 30-55 parts of a dispersing agent, 30-55 parts of a defoaming agent, 150-350 parts of expanded perlite, 60-80 parts of butylbenzene emulsion, 30-55 parts of polyacrylate, 50-100 parts of polyethylene acetate and 30-80 parts of propylbenzene emulsion.
2. The radiation-proof mortar according to claim 1, wherein the ratio of ordinary portland cement, high alumina cement, barite sand and coarse sand is 0.5:0.5:5.44:3.
3. the radiation-proof mortar of claim 2, wherein the barium sulfate content of the barite sand is not less than 80%.
4. The preparation method of the radiation-proof mortar is characterized by comprising the following steps:
1) Before the preparation, all raw materials are detected and processed;
2) Mixing ordinary portland cement, high-alumina cement, barite sand and coarse sand in proportion, then grinding the mixture, and adding barium sulfate into the barite sand when the barium sulfate in the barite sand does not reach 80%;
3) Then adding the dispersed latex powder, cellulose ether, glass fiber, dispersant, defoamer and expanded perlite, mixing at medium speed for 6-10 minutes in a HZ-20 type forced stirrer, and then mixing at high speed for 3-5 minutes;
4) Finally, blending the styrene-butadiene emulsion, the polyacrylate, the polyvinyl acetate and the propylbenzene emulsion according to a certain proportion, pouring the mixed emulsion into the step three, mixing the mixed emulsion again, and grinding the finished product after mixing;
5) And (4) guiding the mixed dry powder into a finished product homogenizing warehouse, automatically packaging by using electronic metering, and warehousing for storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210797094.4A CN115259805A (en) | 2022-07-08 | 2022-07-08 | Anti-radiation mortar and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210797094.4A CN115259805A (en) | 2022-07-08 | 2022-07-08 | Anti-radiation mortar and preparation method thereof |
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| CN115259805A true CN115259805A (en) | 2022-11-01 |
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| CN202210797094.4A Pending CN115259805A (en) | 2022-07-08 | 2022-07-08 | Anti-radiation mortar and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601452A (en) * | 2013-10-19 | 2014-02-26 | 宿州典跃新型建筑材料有限公司 | Radiation-resistant dry-mixed mortar and manufacturing method thereof |
| CN103803872A (en) * | 2013-12-20 | 2014-05-21 | 安徽省美域节能环保技术应用有限公司 | Radiation-proof reinforcing composite cement mortar |
| CN105837104A (en) * | 2016-05-18 | 2016-08-10 | 益阳金宙建材科技有限公司 | High-temperature-resistant anti-radiation mortar and preparation method thereof |
| CN106082839A (en) * | 2016-06-06 | 2016-11-09 | 北京中德新亚建筑技术有限公司 | A kind of polymer anti-radiation mortar and preparation method thereof |
| CN106495606A (en) * | 2016-10-21 | 2017-03-15 | 常州市鼎升环保科技有限公司 | A kind of preparation method of polymer-modified cement mending mortar |
| CN112830720A (en) * | 2021-01-21 | 2021-05-25 | 广东碧通百年科技有限公司 | Radiation pollution preventing mortar for wall |
-
2022
- 2022-07-08 CN CN202210797094.4A patent/CN115259805A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601452A (en) * | 2013-10-19 | 2014-02-26 | 宿州典跃新型建筑材料有限公司 | Radiation-resistant dry-mixed mortar and manufacturing method thereof |
| CN103803872A (en) * | 2013-12-20 | 2014-05-21 | 安徽省美域节能环保技术应用有限公司 | Radiation-proof reinforcing composite cement mortar |
| CN105837104A (en) * | 2016-05-18 | 2016-08-10 | 益阳金宙建材科技有限公司 | High-temperature-resistant anti-radiation mortar and preparation method thereof |
| CN106082839A (en) * | 2016-06-06 | 2016-11-09 | 北京中德新亚建筑技术有限公司 | A kind of polymer anti-radiation mortar and preparation method thereof |
| CN106495606A (en) * | 2016-10-21 | 2017-03-15 | 常州市鼎升环保科技有限公司 | A kind of preparation method of polymer-modified cement mending mortar |
| CN112830720A (en) * | 2021-01-21 | 2021-05-25 | 广东碧通百年科技有限公司 | Radiation pollution preventing mortar for wall |
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