CN113802785A - Construction process of protective material - Google Patents
Construction process of protective material Download PDFInfo
- Publication number
- CN113802785A CN113802785A CN202110928254.XA CN202110928254A CN113802785A CN 113802785 A CN113802785 A CN 113802785A CN 202110928254 A CN202110928254 A CN 202110928254A CN 113802785 A CN113802785 A CN 113802785A
- Authority
- CN
- China
- Prior art keywords
- cement
- barium sulfate
- plastering
- construction
- wall
- 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
- 238000010276 construction Methods 0.000 title claims abstract description 39
- 239000000463 material Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000001681 protective effect Effects 0.000 title claims abstract description 14
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 100
- 239000004568 cement Substances 0.000 claims abstract description 57
- 238000002156 mixing Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 4
- 239000004035 construction material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 230000005855 radiation Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000004576 sand Substances 0.000 description 11
- 239000011083 cement mortar Substances 0.000 description 8
- 238000005336 cracking Methods 0.000 description 7
- 230000005484 gravity Effects 0.000 description 7
- 229910052788 barium Inorganic materials 0.000 description 6
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 229910052601 baryte Inorganic materials 0.000 description 4
- 239000010428 baryte Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- -1 dirt Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 238000009206 nuclear medicine Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000013102 re-test Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00862—Uses not provided for elsewhere in C04B2111/00 for nuclear applications, e.g. ray-absorbing concrete
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B2001/925—Protection against harmful electro-magnetic or radio-active radiations, e.g. X-rays
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Electromagnetism (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a construction process of a protective material, and belongs to the technical field of radiation protection. The invention overcomes the problem that the construction and protection engineering in the prior art adopts barium sulfate cement materials which are easy to fall off and crack in the use process so as to influence the protection effect by changing the barium sulfate cement construction plastering process and adopting the construction process of plastering from bottom to top; the invention can ensure that the barium sulfate cement plastering wall can be reliably and safely applied, and avoid the problem of high construction cost caused by adopting other protective materials; has great application prospect and can create great economic value; the protective material adopted in the protective engineering is partially replaced by the lead plate instead of barium sulfate cement, so that a large amount of funds can be saved, the manufacturing cost is reduced on the premise of achieving the same protective effect, and the popularization and the use of the radiation device project are facilitated.
Description
Technical Field
The invention relates to a construction process of a protective material, and belongs to the technical field of radiation protection.
Background
With the improvement of medical technology level and the development of medical equipment, more and more ray device equipment is widely applied to the medical fields of diagnostics, nuclear medicine, interventional science and the like in the construction of modern hospitals, the wide application of the ray device brings great benefits to people and can also bring injuries to people, and a machine room equipped with the ray device needs facilities for strictly protecting rays, so that medical staff and patients are less damaged by radiation.
In the design of protection engineering, the protection material is cast barium sulfate material, and is sometimes adopted by designers, hospitals and owners. Because the material has low price, no toxicity, X and gamma ray resistance and better protection effect, but the biggest defect of using the material is easy to fall off and crack, and the falling off and cracking can influence the protection effect; generally, the protection construction unit cannot prevent the barium sulfate coated wall from falling off and cracking due to the poor control of the construction process, so that experts of authorities in the field generally do not adopt the material due to the worry of the engineering quality, and other protection materials such as lead plates and the like are adopted, so that the construction cost is increased. Therefore, the technical problem of how to avoid the occurrence of the peeling and cracking of the wall body coated with barium sulfate is urgently needed to be solved in the technical field.
Disclosure of Invention
The invention aims to solve the technical problem of how to avoid the occurrence of the situation of falling and cracking of a wall body coated with barium sulfate.
In order to solve the problems, the technical scheme adopted by the invention is to provide a construction process of a protective material, which comprises the following steps:
step 1: preparing a construction material, wherein the material comprises cement, barium sulfate and water, and mixing the cement, the barium sulfate and the water for later use;
step 2: cleaning the surface of a wall body to be plastered;
and step 3: starting barium sulfate cement plastering, and carrying out plastering construction layer by layer upwards from the bottom of the wall to the top of the wall, wherein the thickness of the first plastering is less than or equal to 20 mm;
and 4, step 4: and (5) plastering for the second time, wherein plastering construction is carried out upwards layer by layer from the bottom of the wall body to the top of the wall body, the total thickness of plastering for the second time is less than or equal to 50mm, and the construction is finished.
Preferably, in the step 1, the barium sulfate and the cement are mixed according to a weight mixing ratio of barium sulfate to cement of 4: 1.
Preferably, the cement in the step 1 is set as ordinary cement, and the cement strength grade is 42.5.
Barium sulfate is barite, is barium barite, has the specific gravity of 4:0-4.5, has a good protection function on X rays, but is not ideal in the current use condition in the prior art; the barium sulfate cement used for coating the wall surface is prone to falling and cracking, and the common cement mortar used generally is not prone to falling and cracking; by comparing barium sulfate cement with ordinary cement mortar, the main component of the ordinary cement mortar is yellow sand, the specific gravity of the yellow sand is 1.65, and the main material of the barium sulfate cement is barium sand, the specific gravity of the barium sulfate cement is 4.0-4.5; in the prior art, the wall plastering process of the conventional construction process is from top to bottom plastering; when the common cement mortar is used, the cement mortar can support the plastering layer through the cement adhesive force; the barium sulfate cement mainly contains barium sand, and the cement adhesive force cannot support a plastering layer, so that the barium sulfate cement falls off downwards. The application changes the conventional construction process, adopts the construction process of plastering from bottom to top, and has unexpected technical effect as a result, the surface of the barium sulfate cement protective material does not fall off, the sand compactness is improved, and the defects in the use of the original barium sulfate cement are overcome.
Compared with the prior art, the invention has the following beneficial effects:
the technical scheme provided by the invention overcomes the problems in the prior art when barium sulfate cement is used only by changing the construction procedure in the construction process, and avoids the situation that the wall body plastered by the barium sulfate cement is peeled and cracked; the invention can be popularized to be widely applied and can create huge economic value; the ray device is a main hardware part of the medical system, and whether the ray device is advanced or not is a mark for measuring the overall level of a hospital. The medical institution in China has a large number of new and expanded radiation device projects every year, wherein the protection projects have certain specific gravity, if the protection materials adopted in the projects are partially replaced by lead plates and barium sulfate cement, the manufacturing cost of the protection projects can be reduced by one fifth to one fourth, so that a large amount of funds can be saved, the manufacturing cost is reduced on the premise of achieving the same protection effect, and the radiation device projects are further promoted and used.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments are described in detail as follows:
the invention provides a construction process of a protective material, which comprises the following steps:
step 1: preparing a construction material, wherein the material comprises cement, barium sulfate and water, and mixing the cement, the barium sulfate and the water for later use;
step 2: cleaning the surface of a wall body to be plastered;
and step 3: starting barium sulfate cement plastering, and carrying out plastering construction layer by layer upwards from the bottom of the wall to the top of the wall, wherein the thickness of the first plastering is less than or equal to 20 mm;
and 4, step 4: performing secondary plastering, wherein the plastering construction thickness from the bottom of the wall body to the top of the wall body upwards layer by layer is 20mm, the total thickness of the two plasterings is less than or equal to 40mm, and the construction is finished;
and if the total thickness of the barium sulfate is required to be more than 4cm to 5cm, plastering for the third time.
In the step 1, the barium sulfate and the cement are mixed according to a weight mixing ratio of barium sulfate to cement of 4: 1.
And in the step 1, the cement is set as ordinary cement, and the cement strength grade is 42.5.
Examples
1. Preparation before construction:
preparing materials:
cement: adopting ordinary cement, strength grade: 42.5; the product can be used after being qualified after delivery qualification certificate and retest;
barium sulfate: the additive is added according to the required dosage of the mixture ratio strictly, and the mixture ratio by weight is as follows: barium sulfate: the cement is 4:1, namely 1 bag of cement (50 Kg of cement per bag) is prepared for every 4 bags of barium sulfate (50 Kg of cement per bag).
Plastering construction can be carried out after the main body structure and the masonry structure experience folding lattice.
2. Cleaning the surface of a wall body to be plastered; the concrete member, the door and window lintel and other surface convex parts are chiseled flat. Chiseling a solid part on the surface of the concrete with the honeycomb, pitted surface and loose part, brushing plain cement paste once, and then using a 1: 2.5 the cement mortar is layered and leveled without finishing. The exposed reinforcing steel bar head and the lead wire head (No. 22 iron wire) are removed and cleaned. The dust, dirt, oil stain and the like of the wall surface are cleaned, and the wall surface is watered thoroughly two days before plastering (more than two times per day). 500 steel wire net pieces are strengthened to nail width no less than that of the wall face where the wall face is connected. A scaffold for plastering operation (or a nailed high stool) is erected before plastering, and the scaffold or the high stool is 200-250 mm away from the wall surface so as to be convenient to operate. The related standards and technical requirement files issued by construction units are familiar before plastering, and workers are plastered formally after safety and technical background conflict.
3. Plastering: the wall plastering is carried out twice, the wall plastering can not be leaked in the construction, the wall plastering is pulled from bottom to top, and the wall plastering can not be repeatedly pulled and plastered in the same plastering operation. Squeezing bottom layer ash forcibly to squeeze mortar into the gap, filling layer by layer, and plastering for the first time to be less than or equal to 20mm thick; and plastering for the second time, and then plastering upwards layer by layer from the bottom of the wall to the top of the wall, wherein the total thickness of the two plasterings is less than or equal to 40mm, and the construction is finished. If the total thickness of the barium sulfate is required to be more than 4cm to 5cm, plastering is added once and plastering is carried out three times.
4. And carrying out other subsequent surface treatments.
Barium sulfate is barite, is barium barite, has the specific gravity of 4:0-4.5, has a good protection function on X rays, but is not ideal in the current use condition in the prior art; the used barium sulfate cement is prone to falling and cracking; by comparing barium sulfate cement with common cement mortar, the main component of the common cement mortar is yellow sand, the specific gravity of the yellow sand is 1.65, and the main material of the barium sulfate cement is barium sand, the specific gravity is 4: 0-4.5; in the prior art, the wall plastering process of the conventional construction process is to plaster from top to bottom, and the yellow sand can support a plastering layer through the cement adhesive force; the barium sulfate cement mainly contains barium sand, and the cement adhesive force cannot support a plastering layer, so that the barium sulfate cement falls off downwards. The application changes the conventional construction process, adopts the construction process of plastering from bottom to top, and unexpected technical effect appears as a result, and the barium sulfate cement wall surface not only does not drop, but also improves the compactness of sand, and overcomes the defects appearing in the prior barium sulfate cement in use.
While the invention has been described with respect to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Those skilled in the art can make various changes, modifications and equivalent arrangements, which are equivalent to the embodiments of the present invention, without departing from the spirit and scope of the present invention, and which may be made by utilizing the techniques disclosed above; meanwhile, any changes, modifications and variations of the above-described embodiments, which are equivalent to those of the technical spirit of the present invention, are within the scope of the technical solution of the present invention.
Claims (3)
1. The construction process of the protective material is characterized in that: the method comprises the following steps:
step 1: preparing a construction material, wherein the material comprises cement, barium sulfate and water, and mixing the cement, the barium sulfate and the water for later use;
step 2: cleaning the surface of a wall body to be plastered;
and step 3: starting barium sulfate cement plastering, and carrying out plastering construction layer by layer upwards from the bottom of the wall to the top of the wall, wherein the thickness of the first plastering is less than or equal to 20 mm;
and 4, step 4: and (5) plastering for the second time, wherein plastering construction is carried out upwards layer by layer from the bottom of the wall body to the top of the wall body, the total thickness of plastering for the second time is less than or equal to 50mm, and the construction is finished.
2. The construction process of a protective material as claimed in claim 1, characterized in that: in the step 1, the barium sulfate and the cement are mixed according to a weight mixing ratio of barium sulfate to cement of 4: 1.
3. The construction process of a protective material as claimed in claim 1, characterized in that: and in the step 1, the cement is set as ordinary cement, and the cement strength grade is 42.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110928254.XA CN113802785A (en) | 2021-08-13 | 2021-08-13 | Construction process of protective material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110928254.XA CN113802785A (en) | 2021-08-13 | 2021-08-13 | Construction process of protective material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113802785A true CN113802785A (en) | 2021-12-17 |
Family
ID=78893577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110928254.XA Pending CN113802785A (en) | 2021-08-13 | 2021-08-13 | Construction process of protective material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113802785A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3168094U (en) * | 2010-05-05 | 2011-06-02 | 貝克西弗股▲分▼有限公司 | Precast radiation protection plate |
| CN202970018U (en) * | 2012-08-17 | 2013-06-05 | 徐更修 | Environment-friendly radiation-resistant communication machine room |
| CN205810390U (en) * | 2016-07-19 | 2016-12-14 | 广州市原子高科同位素医药有限公司 | A kind of radioprotective isolation body of wall |
| CN110107040A (en) * | 2019-04-01 | 2019-08-09 | 山东浩岳建设工程有限公司 | A kind of medical institutions' ray detection room radiation proof cement barium sand construction method |
| CN111236701A (en) * | 2020-01-17 | 2020-06-05 | 广东省建筑装饰工程有限公司 | Integrated assembly type medical radiation-proof room structure and construction method |
| CN111592290A (en) * | 2020-05-30 | 2020-08-28 | 宋宏敏 | Single-component anti-radiation special mortar |
| CN112160450A (en) * | 2020-10-23 | 2021-01-01 | 安徽联固技研新材料科技有限公司 | Steel mesh internal mold radiation protection wall |
-
2021
- 2021-08-13 CN CN202110928254.XA patent/CN113802785A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3168094U (en) * | 2010-05-05 | 2011-06-02 | 貝克西弗股▲分▼有限公司 | Precast radiation protection plate |
| CN202970018U (en) * | 2012-08-17 | 2013-06-05 | 徐更修 | Environment-friendly radiation-resistant communication machine room |
| CN205810390U (en) * | 2016-07-19 | 2016-12-14 | 广州市原子高科同位素医药有限公司 | A kind of radioprotective isolation body of wall |
| CN110107040A (en) * | 2019-04-01 | 2019-08-09 | 山东浩岳建设工程有限公司 | A kind of medical institutions' ray detection room radiation proof cement barium sand construction method |
| CN111236701A (en) * | 2020-01-17 | 2020-06-05 | 广东省建筑装饰工程有限公司 | Integrated assembly type medical radiation-proof room structure and construction method |
| CN111592290A (en) * | 2020-05-30 | 2020-08-28 | 宋宏敏 | Single-component anti-radiation special mortar |
| CN112160450A (en) * | 2020-10-23 | 2021-01-01 | 安徽联固技研新材料科技有限公司 | Steel mesh internal mold radiation protection wall |
Non-Patent Citations (1)
| Title |
|---|
| 赵志缙 等: "《建筑施工》", 31 March 1993, 同济大学出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20211217 |